Electric cleaning brush

Abstract

The electric cleaning brush comprises a main machine and a brush rod detachably connected to the tail end of the main machine, the main machine comprises a shell and a power mechanism assembled in the shell and used for driving a brush head to move, a first locking part is arranged at the end, in butt joint with the tail end of the shell, of the brush rod, and a second locking part is arranged at the end, in butt joint with the tail end of the shell, of the brush rod. The shell is provided with a second locking part corresponding to the first locking part, and the first locking part and the second locking part are clamped and matched at the locking position and relatively fix the main machine and the brush rod in the axial direction and the circumferential direction of the brush rod at the same time, and are mutually unlocked at the unlocking position so that the main machine and the brush rod can be conveniently disassembled. According to the embodiment of the utility model, the main machine and the brush rod are relatively fixed in the axial direction and the circumferential direction of the brush rod at the same time, so that the connection stability of the brush rod and the main machine is improved.

Description

Technical Field

[0001] The embodiment of the utility model relates to the technical field of cleaning brushes, in particular to an electric cleaning brush. Background Art

[0002] The electric cleaning brush drives the brush head to scrub back and forth or rotate to scrub the ground or wall to be cleaned through a power component, which can greatly save labor and reduce the housework burden.

[0003] An existing electric cleaning brush includes a main body and a brush rod relatively fixed to one end of the main body. Wherein, for the convenience of charging and maintenance of the main body, the brush rod needs to be detachably connected to the main body. Therefore, an installation hole is formed at one end of the housing of the main body, an internal thread is formed on the inner wall of the installation hole, and an external thread is correspondingly formed at the docking end of the brush rod and screwed into the installation hole. However, the inventor found in the specific implementation that the stability of the threaded connection method is poor. After the electric cleaning brush is activated, the housing vibrates with the brush head, and the brush rod is very likely to become loose, and the structural stability is poor. Summary of the Utility Model

[0004] The technical problem to be solved by the embodiment of the utility model is to provide an electric cleaning brush with good connection stability between the brush rod and the main body.

[0005] To solve the above technical problem, the embodiment of the utility model provides the following technical solutions: An electric cleaning brush includes a main body and a brush rod detachably connected to the end of the main body. The main body includes a housing and a power mechanism assembled in the housing for driving the brush head to move. One end of the brush rod docked at the end of the housing is provided with a first locking portion, and the housing is correspondingly provided with a second locking portion at the position corresponding to the first locking portion. The first locking portion and the second locking portion are clamped and matched at the locking position to relatively fix the main body and the brush rod axially and circumferentially of the brush rod, and are unlocked from each other at the unlocking position to facilitate the disassembly of the main body and the brush rod.

[0006] Further, a plugging hole is formed at the end of the housing. The brush rod includes an inserting pipe correspondingly inserted into the plugging hole. The second locking portion is a locking block protruding from the hole wall of the plugging hole. The first locking portion is a locking hole provided on the outer wall of the inserting pipe. And at the locking position, the locking block is correspondingly clamped in the locking hole, and at the unlocking position, the locking block correspondingly exits from the locking hole.

[0007] Further, the housing is further provided with an operation key for switching the locking block between the locking position and the unlocking position. An installation hole is formed in the hole wall of the plugging hole corresponding to the operation key, and the operation key protrudes into the installation hole to protrude the locking block.

[0008] Further, one end of the operation key extends into the mounting hole towards the locking block, and the middle section is pivotally connected to the housing correspondingly. When there is no external force, the locking block is in the locking position and is clamped in the locking hole; pressing one end of the operation key away from the locking block causes the locking block to deflect correspondingly to reach the unlocking position and withdraw out of the locking hole.

[0009] Further, the operation key is relatively fixed to the housing through a corresponding elastic member. The elastic member applies a pulling force towards the insertion pipe to the operation key, so that the locking block is clamped in the locking hole, and unlocks the insertion pipe when an external force drives the operation key to overcome the pulling force and pull out the locking block from outside the locking block.

[0010] Further, the cross-section of the insertion pipe is non-circular, and a first guiding member is further provided on the outer side surface of the insertion pipe. A second guiding member for cooperating with the first guiding member to guide the insertion direction of the insertion pipe is correspondingly provided on the hole wall of the insertion hole.

[0011] Further, the brush rod further includes an inner pipe connected to the end of the insertion pipe away from the housing and a middle pipe sleeved outside the inner pipe. The inner pipe telescopically moves axially relative to the middle pipe to adjust the total length of the brush rod.

[0012] Further, a plurality of tooth grooves are axially formed on the outer side wall of the inner pipe, and convex teeth are correspondingly provided on the inner wall of the middle pipe. The middle pipe moves axially to make the convex teeth correspondingly engage into different tooth grooves to adjust the total length of the brush rod.

[0013] Further, the brush rod further includes an outer pipe sleeved outside the middle pipe. The middle pipe telescopically moves axially relative to the outer pipe to adjust the total length of the brush rod.

[0014] Further, an external thread is provided on the outer surface of one end of the outer pipe close to the middle pipe. One end of a connecting pipe is sleeved outside the middle pipe and the other end is screwed with the external thread. The inner diameter of the connecting pipe gradually increases from the end close to the middle pipe to the end away from the middle pipe. The connecting pipe is screwed and moved along the external thread towards the outer pipe to squeeze the end of the outer pipe to tightly fix the middle pipe, and the connecting pipe is screwed and moved along the external thread away from the outer pipe to loosen the end of the outer pipe to allow the middle pipe to telescopically move.

[0015] After adopting the above technical solution, the embodiment of the present utility model has at least the following beneficial effects: By providing a first locking portion at one end of the brush rod to engage with a corresponding second locking portion on the housing, the main body and the brush rod are relatively fixed axially and circumferentially on the brush rod, compensating for the defect that the threaded connection can rotate relatively circumferentially. Moreover, through the mutual conversion between the locking position and the unlocking position between the first locking portion and the second locking portion, the rapid assembly and disassembly of the main body and the brush rod are realized. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of the disassembled state after disassembling the operation key of an alternative embodiment of the electric cleaning brush of the present utility model.

[0017] Figure 2 It is a longitudinal sectional view along the central axis of the insertion hole when the locking block of an alternative embodiment of the electric cleaning brush of the present utility model is in the locking position.

[0018] Figure 3 It is a longitudinal sectional view along the central axis of the insertion hole when the locking block of an alternative embodiment of the electric cleaning brush of the present utility model is in the unlocking position.

[0019] Figure 4 It is a schematic disassembled structure diagram of the brush rod of another alternative embodiment of the electric cleaning brush of the present utility model.

[0020] Figure 5 It is a longitudinal sectional view along the central axis of the insertion hole of the brush rod of another alternative embodiment of the electric cleaning brush of the present utility model.

[0021] Figure 6 It is a longitudinal sectional view along the central axis of the insertion hole of the brush rod of another alternative embodiment of the electric cleaning brush of the present utility model.

[0022] Figure 7 It is a schematic cross-sectional view of the insertion pipe of another alternative embodiment of the electric cleaning brush of the present utility model. Detailed Embodiment

[0023] The following further describes the present application in detail with reference to the drawings and specific embodiments. It should be understood that the following illustrative embodiments and descriptions are only used to explain the present utility model and are not intended to limit the present utility model. Moreover, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0024] Such as Figures 1 - 7As shown, an optional embodiment of the utility model provides an electric cleaning brush, including a main body 1 and a brush rod 2 detachably connected to the end of the main body 1, the main body 1 includes a shell 10 and a power mechanism (not shown) assembled in the shell 10 for driving the brush head to move, the brush rod 2 is docked with one end of the end of the shell 10 and is provided with a first locking portion 210, the shell 10 is provided with a second locking portion 101 corresponding to the first locking portion 210, the first locking portion 210 and the second locking portion 101 are engaged in a locking position and simultaneously fix the main body 1 and the brush rod 2 relatively in the axial and circumferential directions of the brush rod 2, and are unlocked from each other in the unlocking position to facilitate the disassembly of the main body 1 and the brush rod 2.

[0025] The embodiment of the utility model provides a first locking portion 210 at one end of the brush rod 2 to engage with the corresponding second locking portion 101 on the housing 10, thereby fixing the main unit 1 and the brush rod 2 relatively in the axial direction and the circumferential direction of the brush rod 2, thereby making up for the defect that the threaded connection can rotate relatively in the circumferential direction, and the first locking portion 210 and the second locking portion 101 can be mutually converted between the locked position and the unlocked position to achieve rapid assembly and rapid disassembly of the main unit 1 and the brush rod 2. In the specific implementation process, the first locking portion 210 and the second locking portion 101 can be in the form of a clamping block and a clamping slot / hole, a pin and a plug hole, or an elastic card and a clamping slot.

[0026] In another optional embodiment of the present invention, Figures 2 - 3 As shown, a plug hole 103 is formed at the end of the housing 10, and the brush rod 2 includes a plug tube 21 correspondingly provided and plugged into the plug hole 103. The second locking portion 101 is a locking block 101 protruding relative to the hole wall of the plug hole 103. The first locking portion 210 is a locking hole 210 provided on the outer wall of the plug tube 21. In the locking position, the locking block 101 is correspondingly clamped in the locking hole 210, and in the unlocking position, the locking block 101 is correspondingly withdrawn from the locking hole 210. In this embodiment, the plug tube 21 is axially locked by the plug-in cooperation between the locking block 101 and the locking hole 210, which effectively prevents the plug tube 21 from accidentally falling out during use. The locking block 101 is correspondingly clamped in the locking hole 210 to lock the plug tube 21, and the locking block 101 is correspondingly withdrawn from the locking hole 210 to unlock the plug tube 21. The structure is simple and the locking and unlocking operations are convenient.

[0027] In another optional embodiment of the present invention, Figures 1 - 3As shown, an operation key 3 is further provided on the housing 10 for switching the locking block 101 between the locking position and the unlocking position. An installation hole 105 is provided on the hole wall of the insertion hole 103 corresponding to the operation key 3, and the operation key 3 protrudes into the installation hole 105 from the locking block 101. In this embodiment, the installation hole 105 is provided on the hole wall of the insertion hole 103 for installing the operation key 3, which is convenient for switching the locking state of the locking block 101. In the specific implementation process, the operation key 3 can correspond to a rebounder. Pressing the operation key 3 causes the locking block 101 to be inserted into the locking hole 210 to connect the brush rod 2 and the host 1; pressing the operation key 3 again can cause the locking block 101 to rebound and exit the locking hole 210 to unlock the brush rod 2 and the host 1.

[0028] In another alternative embodiment of the present invention, as Figures 1 - 3 shown, one end of the operation key 3 extends into the installation hole 105 from the locking block 101, and the middle section is pivotally connected to the housing 10 correspondingly. When there is no external force, the locking block 101 is in the locking position and is clamped in the locking hole 210; pressing the end of the operation key 3 away from the locking block 101 causes the locking block 101 to deflect correspondingly to reach the unlocking position and exit outside the locking hole 210. In this embodiment, the locking block 101 is provided at one end of the operation key 3, and the middle section of the operation key 3 is pivotally connected to the housing 10. By pressing the end of the operation key 3 away from the locking block 101, the locking block 101 deflects correspondingly to exit the locking block 101 to unlock the insertion pipe 21 and the housing 10, realizing the quick disassembly of the brush rod 2 and the host 1.

[0029] In another alternative embodiment of the present invention, as Figures 1 - 3 shown, the operation key 3 is relatively fixed to the housing 10 through a corresponding elastic member (not shown in the figure). The elastic member applies a pulling force towards the insertion pipe 21 to the operation key 3, so that the locking block 101 is clamped in the locking hole 210, and when an external force forces the operation key 3 to overcome the pulling force and pull the locking block 101 out of the locking block 101, the insertion pipe 21 is unlocked. In this embodiment, the operation key 3 and the housing 10 are movably connected by using an elastic member. The elastic member applies a pulling force towards the insertion pipe 21 to the operation key 3, so that the locking block 101 is clamped in the locking hole 210. When unlocking, applying an external force to the operation key 3 to overcome the pulling force can pull out the locking block 101, which can realize the quick locking and unlocking of the insertion pipe 21. It can be understood that after the external force on the operation key 3 is withdrawn, the locking block 101 can automatically reset.

[0030] In another alternative embodiment of the present invention, as Figures 1 - 3 and Figure 7As shown, the cross-section of the insertion pipe 21 is non-circular, and a first guiding member 212 is further provided on the outer side surface of the insertion pipe 21. A second guiding member 1030 for cooperating with the first guiding member 212 to guide the insertion direction of the insertion pipe 21 is correspondingly provided on the hole wall of the insertion hole 103. In this embodiment, by setting the cross-section of the insertion pipe 21 to be non-circular, the relative rotation between the brush rod 2 and the housing 10 during use is eliminated, ensuring relative fixation in the circumferential direction. Moreover, a first guiding member 212 is provided on the outer side surface of the insertion pipe 21, and a second guiding member 1030 is correspondingly provided on the hole wall of the insertion hole 103. When connecting the brush rod 2 to the main body 1, the insertion pipe 21 aligns the first guiding member 212 with the second guiding member 1030 to position the insertion position and guide the insertion direction, simplifying the installation operation of the insertion pipe 21. It can be understood that after the insertion pipe 21 is inserted in place, the locking block 101 is correspondingly snapped into the locking hole 210 to achieve axial relative fixation between the insertion pipe 21 and the housing 10. In the specific implementation process, the first guiding member 212 and the second guiding member 1030 can adopt the cooperation form of a guiding strip 1030 and a guiding groove 212.

[0031] In another alternative embodiment of the present utility model, as Figures 4 - 6 shown, the brush rod 2 further includes an inner pipe 23 connected to one end of the insertion pipe 21 away from the housing 10 and a middle pipe 25 sleeved outside the inner pipe 23. The inner pipe 23 can axially expand and contract relative to the middle pipe 25 to adjust the total length of the brush rod 2. In this embodiment, by providing the middle pipe 25 outside the inner pipe 23, the inner pipe 23 can axially expand and contract relative to the middle pipe 25, increasing the adjustment range of the total length of the brush rod 2 to adapt to more users of different heights and more usage scenarios.

[0032] In another alternative embodiment of the present utility model, as Figures 4 - 6As shown, a plurality of tooth grooves 230 are axially formed in the outer side wall of the inner tube 23, and corresponding convex teeth 250 are provided on the inner wall of the middle tube 25. The middle tube 25 moves axially so that the convex teeth 250 are correspondingly engaged into different tooth grooves 230 to adjust the total length of the brush rod 2. In this embodiment, by axially forming a plurality of tooth grooves 230 on the outer wall of the inner tube 23 and providing convex teeth 250 on the inner wall of the middle tube 25, the convex teeth 250 are correspondingly engaged into the tooth grooves 230 to fix the relative positions of the inner tube 23 and the middle tube 25, thereby realizing the rapid adjustment of the total length of the brush rod 2. In the specific implementation process, the positions of the tooth grooves 230 and the convex teeth 250 can be interchanged; the tooth grooves 230 can be evenly distributed at a predetermined interval, and one or more convex teeth 250 can be provided. A plurality of convex teeth 250 forming a rack can be meshed with the tooth grooves 230; and in the actual adjustment process, the inner tube 23 can be inserted and pulled out so that the convex teeth 250 cross the corresponding tooth grooves 230, or a corresponding movable member can be used to drive the convex teeth 250 to move radially along the middle tube 25 to withdraw from the tooth grooves 230, then the inner tube 23 is inserted and pulled out to adjust to a suitable length, and the convex teeth 250 are reset.

[0033] In another alternative embodiment of the present invention, as Figures 4 - 6 shown, the brush rod 2 further includes an outer tube 27 sleeved outside the middle tube 25. The middle tube 25 axially expands and contracts relative to the outer tube 27 to adjust the total length of the brush rod 2. This embodiment adopts a three-stage telescopic structure of the inner tube 23, the middle tube 25 and the outer tube 27, further improving the adjustment range of the total length of the brush rod 2, so that the electric cleaning brush can be adapted to more usage scenarios.

[0034] In another alternative embodiment of the present invention, as Figures 4 - 6As shown, an external thread 270 is provided on the outer surface of one end of the outer tube 27 close to the middle tube 25. Another connecting tube 29 has one end sleeved on the outside of the middle tube 25 and the opposite end screwed with the external thread 270. The inner diameter of the connecting tube 29 gradually increases from the end close to the middle tube 25 to the end far from the middle tube 25. The connecting tube 29 is screwed and moved along the external thread 270 towards the outer tube 27 to squeeze the end of the outer tube 27 to tightly fix the middle tube 25, and when the connecting tube 29 is screwed and moved along the external thread 270 away from the outer tube 27, the end of the outer tube 27 is loosened to allow the middle tube 25 to expand and contract. In this embodiment, by providing the connecting tube 29 to movably connect the outer tube 27 and the middle tube 25, the inner diameter of the connecting tube 29 gradually increases from the end close to the middle tube 25 to the end far from the middle tube 25, and the large inner diameter end of the connecting tube 29 is screwed and connected with the external thread 270 on the outer tube 27. The connecting tube 29 is screwed and moved along the external thread 270 towards the outer tube 27 to squeeze the end of the outer tube 27 to tightly fix the middle tube 25, and when the connecting tube 29 is screwed and moved along the external thread 270 away from the outer tube 27, the end of the outer tube 27 is loosened to allow the middle tube 25 to expand and contract, realizing the expansion and contraction of the middle tube 25 inside the outer tube 27, and the adjustment operation of the length of the brush rod 2 is simple and fast.

[0035] The embodiments of the present invention have been described above in conjunction with the accompanying drawings. However, the present invention is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present invention, those of ordinary skill in the art can also make many variations without departing from the spirit and scope protected by the claims of the present invention. All these fall within the protection scope of the present invention.

Claims

1. An electric cleaning brush, comprising a main body and a brush rod detachably connected to the end of the main body, the main body including a housing and a power mechanism assembled in the housing for driving the brush head to move, characterized in that, The brush rod is provided with a first locking portion at one end docking with the end of the shell, and the shell is provided with a second locking portion corresponding to the first locking portion. The first locking portion and the second locking portion are engaged with each other in the locking position to relatively fix the main unit and the brush rod in the axial and circumferential directions of the brush rod, and are unlocked from each other in the unlocking position to facilitate the disassembly of the main unit and the brush rod.

2. The electric cleaning brush according to claim 1, characterized in that, A plug-in hole is formed at the end of the shell, the brush rod includes a plug-in tube correspondingly provided and plugged into the plug-in hole, the second locking portion is a locking block protruding relative to the hole wall of the plug-in hole, the first locking portion is a locking hole provided on the outer wall of the plug-in tube, and when in the locked position, the locking block is correspondingly clamped in the locking hole, and when in the unlocked position, the locking block is correspondingly withdrawn from the locking hole.

3. The electric cleaning brush according to claim 2, wherein The housing is also provided with an operation key for switching the locking block between the locking position and the unlocking position, and a mounting hole is formed in the hole wall of the plug hole corresponding to the operation key, and the operation key protrudes out of the locking block toward the mounting hole.

4. The electric cleaning brush according to claim 3, wherein One end of the operation key extends the locking block toward the mounting hole, and the middle section is pivotally connected to the shell. When no external force is applied, the locking block is in a locked position and is stuck in the locking hole. Pressing the end of the operation key away from the locking block causes the locking block to deflect accordingly to reach an unlocked position and withdraw from the locking hole.

5. The electric cleaning brush according to claim 3, characterized in that, The operating key is relatively fixed to the shell through a corresponding elastic member, and the elastic member applies a pulling force toward the plug tube to the operating key so that the locking block is clamped in the locking hole, and unlocks the plug tube when an external force drives the operating key to overcome the pulling force and pull the locking block out of the locking block.

6. The electric cleaning brush according to claim 2, wherein The cross section of the plug tube is non-circular and a first guide is provided on the outer side of the plug tube. The hole wall of the plug hole is correspondingly provided with a second guide for cooperating with the first guide to guide the plugging direction of the plug tube.

7. The electric cleaning brush according to claim 2, wherein, The brush rod also includes an inner tube connected to one end of the plug tube away from the shell and a middle tube sleeved on the outer side of the inner tube. The inner tube is telescopic relative to the middle tube in the axial direction to adjust the total length of the brush rod.

8. The electric cleaning brush according to claim 7, wherein The outer wall of the inner tube is provided with a plurality of tooth grooves along the axial direction, and the inner wall of the middle tube is provided with convex teeth correspondingly. The middle tube moves along the axial direction so that the convex teeth are correspondingly inserted into different tooth grooves to adjust the total length of the brush rod.

9. The electric cleaning brush according to claim 7, wherein The brush rod also includes an outer tube sleeved on the outer side of the middle tube. The middle tube is telescopic relative to the outer tube in the axial direction to adjust the total length of the brush rod.

10. The electric cleaning brush according to claim 9, characterized in that, The outer surface of one end of the outer tube close to the middle tube is provided with an external thread. Additionally, one end of a connecting tube is sleeved outside the middle tube, and the opposite end is screwed with the external thread. Moreover, the inner diameter of the connecting tube gradually increases from the end close to the middle tube to the end far from the middle tube. The connecting tube is screwed and moved along the external thread towards the outer tube to squeeze the end of the outer tube so as to tightly fasten and fix the middle tube, and when the connecting tube is screwed and moved along the external thread away from the outer tube, the end of the outer tube is loosened to allow the middle tube to expand and contract.

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