Brush head replacing mechanism and long-handle brush

Abstract

The utility model discloses a brush head replacing mechanism and a long handle brush, the technical problem is solved by arranging the brush head replacing mechanism and the long handle brush, a middle shaft is arranged, one end of the middle shaft is connected with a motor output shaft, the other end of the middle shaft is forwards in transmission connection with a brush head, and the middle shaft is controlled to move forwards and backwards through a switch assembly. The spring cap is pushed into the containing cavity of the positioning sleeve assembly by the brush head when the brush head is installed by arranging a rebounding self-disengaging mechanism and cooperating with the spring cap, the spring and the push column, the middle shaft is promoted to move backwards, the switch lock catch and the brush head lock catch are promoted to be buckled and not prone to disengagement, and therefore the brush head can be taken out. When the release switch is moved to be pushed forwards, the middle shaft moves forwards, the spring cap abuts against the end face of the brush head or the brush head lock catch forwards under the action of the spring, meanwhile, the middle shaft moves forwards to open a switch of the switch lock catch, the brush head lock catch is released, and finally the brush head can automatically fall off under elastic pushing of the spring cap.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric brush technical field especially, relate to a brush head replacement mechanism and long handle brush. BACKGROUND

[0002] In the electric brush technical field, the common brush head and brush handle are directly connected, then the extension rod is connected behind the brush handle to form a long handle brush, and most of the motor assemblies are installed on the brush handle, which can be used for brushing floor, wall and toilet, etc., and for the application scene where the brush head contacts dirt or water, such as brushing toilet and wall, on the one hand, if the brush head is directly installed at the brush handle, it is easy to cause the brush handle to be too close to the washing part, resulting in water entering the internal parts, increasing the waterproof assembly cost of the machine, on the other hand, if the brush head is away from the brush handle, how to transmit the power of the electronic assembly to the brush head at the end and realize the quick replacement of the brush head also becomes the top priority, and for the application of such scene, when replacing the brush head, especially when taking out the brush head, how to take out the brush head without touching the brush head by hand also becomes a technical problem. SUMMARY

[0003] In order to overcome the shortcomings of the prior art, the purpose of the utility model is to provide a brush head replacement mechanism and long handle brush to solve the technical problems mentioned in the background art.

[0004] In order to solve the technical problems, the utility model adopts the following technical scheme:

[0005] A brush head replacement mechanism, comprising a brush head, a middle shaft, a middle shaft sleeve, a positioning sleeve assembly and a switch assembly, the switch assembly comprising a release switch and a switch lock, the outer side of the middle shaft being provided with a middle shaft sleeve, the release switch being arranged at one end of the middle shaft sleeve and being connected to one side of the middle shaft inwardly and controlling the forward and backward movement of the middle shaft, the other end of the middle shaft abutting against the switch lock and being able to control the opening of the switch lock, the end of the brush head being provided with a brush head lock, one side of the positioning sleeve assembly forming a middle shaft hole for the middle shaft to pass through, the other side forming a lock hole for the brush head lock to pass through, and the inner side forming a containing cavity for the switch lock to contain, the brush head lock being able to extend into the containing cavity and be buckled with the switch lock while the movement of the middle shaft is controlled by the release switch to trigger the opening of the switch lock, so as to release the brush head, the outer side of one end of the positioning sleeve assembly and the inner side of one end of the middle shaft sleeve being further connected with a bearing.

[0006] Specifically, the positioning sleeve assembly comprises a middle shaft positioning sleeve and a brush head positioning sleeve fixedly connected with each other, the inner side of one end of the middle shaft positioning sleeve is provided with a lock hole, and the outer side of the middle shaft positioning sleeve is provided with a sleeve joint position for the brush head sleeve; the switch lock comprises a clamping part, a shaft rotating part and a driving part, the clamping part is used for clamping cooperation with the brush head lock, the inner side of the middle shaft positioning sleeve is provided with a shaft rotating groove for the shaft rotating part to rotate and be embedded, and the outer side of the middle shaft is provided with a rotating strip, the rotating strip is internally provided with a driving groove for the driving part to be embedded.

[0007] Specifically, the middle shaft hole is provided with a tooth groove engaged with the rotating strip, one end of the middle shaft positioning sleeve is provided with a bearing part, the inner ring of the bearing is sleeved at the bearing part, the outer ring of the bearing is sleeved at the inner side of the middle shaft sleeve, one side of the middle shaft sleeve is recessed to form a switch sliding groove, the release switch is slidingly arranged in the switch sliding groove, one end of the middle shaft is provided with a linkage groove, one side of the release switch extends out a linkage tab, and the action end of the linkage tab extends into the linkage groove.

[0008] Specifically, the spring cap is internally recessed to form a push cavity for the push column to extend into, and the outer side of the spring cap is provided with a push head; the inner side of the brush head positioning sleeve is provided with a top disengagement hole for the push head to extend out; the spring is sleeved at the outer side of the push column in the push cavity; the diameter of the push column is smaller than the diameter of the middle shaft; the outer side of the spring cap is further provided with an anti-disengagement edge; and the outer side of the spring cap can pass through the lock hole and abut against the inner side end face of the brush head or the brush head lock.

[0009] Specifically, the inner side of the brush head is provided with a sleeve joint groove sleeved with the sleeve joint position, and the sleeve joint groove and the sleeve joint position have the same groove type.

[0010] A long handle brush comprises a brush head and a brush handle, a middle shaft sleeve is further connected between the brush head and the brush handle, and the brush head replacing mechanism is the aforementioned brush head replacing mechanism; the inner side of the brush handle is sequentially provided with a battery, a speed reduction motor set and a control panel; the output rotating shaft of the speed reduction motor set is drivingly connected with the middle shaft; and the control panel is provided with a switch button.

[0011] Specifically, one side of the middle shaft is provided with a shaft sleeve, and the shaft sleeve is internally provided with a sleeve groove; and the sleeve groove is sleeved with the output rotating shaft of the speed reduction motor set.

[0012] Specifically, the end of the brush handle is provided with a charging port, and the outer side of the charging port is provided with a charging protection cover.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The utility model solves the above technical problems by providing a brush head replacement mechanism and a long-handled brush, wherein in the brush head replacement mechanism, a central axis is provided, one end of the central axis is connected to the motor output shaft, and the other end is connected to the brush head transmission forward, and the central axis is controlled to move forward and backward by a switch assembly. When the central axis moves forward, the central axis can drive the switch lock forward to open, thereby releasing the brush head lock and completing the removal of the brush head. A rebound self-detachment mechanism is also provided, which cooperates with a spring cap, a spring and a push column, so that when the brush head is installed, the brush head pushes the spring cap into the accommodating cavity of the positioning sleeve assembly, thereby prompting the central axis to move backward, and then prompting the switch lock to buckle with the brush head lock. It is not easy to fall off. When the release switch is moved and pushed forward, the central axis moves forward, and the spring cap pushes the brush head or the end face of the brush head lock forward under the action of the spring. At the same time, the central axis moves forward to open the switch of the switch lock, releasing the brush head lock, and finally the brush head can automatically fall off under the elastic push of the spring cap; in the long-handled brush provided by the utility model, a central axis sheath is provided between the brush head and the brush handle to connect the brush head and the brush handle, thereby preventing the brush handle from being too close to the brush head and avoiding contact with dirt. At the same time, the aforementioned brush head replacement mechanism is applied, and the brush head can be quickly replaced to avoid hands touching dirt, and it is also convenient for subsequent modular production and replacement of brush heads. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 : This is one of the exploded views of the overall structure of the long-handled brush and brush head replacement mechanism of the utility model patent;

[0016] Figure 2 : This is the second exploded view of the overall structure of the long-handled brush and brush head replacement mechanism of the utility model patent;

[0017] Figure 3 : This is the overall structure assembly drawing of the long-handled brush of the utility model;

[0018] Figure 4 : The overall structure diagram of the long-handled brush of the utility model (left) and the cross-sectional view along the AA direction (right);

[0019] Figure 5 : Figure 4 Enlarged view of part A in the middle;

[0020] Figure 6 :for Figure 4 Enlarged view of middle part B;

[0021] Figure 7 : This is one of the exploded views of the brush head replacement mechanism of the present invention;

[0022] Figure 8 : This is the second exploded view of the brush head replacement mechanism of the utility model;

[0023] Figure 9 : This is the assembly drawing of the brush head replacement mechanism of the utility model;

[0024] In the figure: brush head 1, middle shaft 2, middle shaft sleeve 3, positioning sleeve assembly 4, switch assembly 5, release switch 51, switch lock 52, brush head lock 11, middle shaft hole 301, lock hole 302, accommodating cavity 303, bearing 6, middle shaft positioning sleeve 41, brush head positioning sleeve 42, sleeve joint position 421, buckle part 521, shaft rotating part 522, driving part 523, shaft rotating groove 411, belt rotating bar 21, driving groove 211, tooth groove 412, bearing part 413, switch sliding groove 31, linkage groove 22, linkage tab 23, rebound self-release mechanism 7, spring cap 71, spring 72, push column 73, push cavity 711, anti-escape edge 712, sleeve joint groove 12;

[0025] Brush handle 8, battery 81, speed reduction motor set 82, control board 83, switch button 84, shaft sleeve 13, sleeve groove 131, charging port 85, charging protection cover 86;

[0026] Top escape hole 304, push head 713, output rotating shaft 821. DETAILED DESCRIPTION

[0027] In the following, the utility model is described further in combination with the drawings and specific embodiments, and it should be noted that the following described embodiments or technical features can be combined to form new embodiments without conflict.

[0028] Reference Figures 1 to 9 :

[0029] The utility model discloses a brush head 1 replacement mechanism, including brush head 1, brush head 1 generally has brush body part and connecting part, and brush body part is used for with target area rotary roll brush or scraping brush, and connecting part is used for with machine connection, still including middle shaft 2, middle shaft sleeve 3, positioning sleeve subassembly 4 and switch subassembly 5, switch subassembly 5 includes release switch 51 and switch lock catch 52, and release switch 51 is also called switch button 84 or push twist, the outside of middle shaft 2 is equipped with middle shaft sleeve 3, and middle shaft sleeve 3 plays the role of transition between brush head 1 and brush handle 8, and the brush head 1 and brush handle 8 are spaced apart, avoid dirt splashing to brush handle 8 to cause brush handle 8 internal machine to be contaminated, release switch 51 is set up in one end of middle shaft sleeve 3 and is connected with one side of middle shaft 2 and controls middle shaft 2 forward and backward movement inward, the other end of middle shaft 2 and switch lock catch 52 abut and can control switch lock catch 52 to open by moving forward, the end of connecting part of brush head 1 is equipped with brush head lock catch 11, here, brush head lock catch 11 can be detachable with brush head 1 installation, also can be fixed with brush head 1 installation, facilitate later as disposable brush head 1, switch lock catch 52 can be recycled and used, one side of positioning sleeve subassembly 4 forms the middle shaft hole 301 for the middle shaft 2 to pass through, the other side forms the lock catch hole 302 for the brush head lock catch 11 to pass through, and the inside is formed with the accommodation cavity 303 for accommodating switch lock catch 52, brush head lock catch 11 can be inserted into the accommodation cavity 303 and is buckled with switch lock catch 52, and still moves through release switch 51 to control middle shaft 2 to trigger switch lock catch 52 to open, thereby releasing brush head 1, above, middle shaft 2 as a drive shaft, it needs to act as the function of trigger switch connecting rod, and also acts as the function of driving, at this time, its priority direction of rotation is along the middle shaft 2 axis rotation, then relative rotation is needed with respect to middle shaft sleeve 3 and also rotates with the brush head 1 of front end, here, one end outside of positioning sleeve subassembly 4, the inside of one end of middle shaft sleeve 3 still is connected with bearing 6, and when middle shaft 2 rotates, positioning sleeve subassembly 4, brush head 1, brush head lock catch 11 all rotate, and when positioning sleeve subassembly 4 rotates, its outside is sleeved with bearing 6, and the outer ring of bearing 6 is also sleeved with middle shaft sleeve 3, so as to realize that middle shaft 2 drives brush head 1 to rotate and middle shaft sleeve 3 does not rotate.

[0030] Specifically, the positioning sleeve assembly 4 comprises the middle shaft positioning sleeve 41 and the brush head positioning sleeve 42 fixedly connected with each other, the middle shaft positioning sleeve 41 is internally provided with the locking hole 302 and externally provided with the sleeve joint position 421 for sleeving the brush head 1, in this way, the brush head locking buckle 11 in the middle part of the brush head 1 extends into the accommodating cavity 303 through the locking hole 302 and is buckled with the switch locking buckle 52, and the outer side of the brush head locking buckle 11 is provided with the sleeve joint groove 12 for sleeving the sleeve joint position 421, of course, in some cases, the brush head 1 can be driven to rotate by the brush head locking buckle 11 alone, preferably, the brush head locking buckle 11 has three or four action ends, the more action ends it has, the stronger the fixing force is, specifically, the switch locking buckle 52 comprises the buckling part 521, the shaft rotating part 522 and the driving part 523, wherein the buckling part 521 is used for buckling cooperation with the brush head locking buckle 11, generally, the buckling part 521 is provided with a protrusion and the brush head locking buckle 11 is provided with a groove, the protrusion is convenient for buckling cooperation with the groove, and in order to prevent it from falling off by itself, the protrusion has an angle or a right angle, and is not formed as an inclined surface or a curved surface, specifically, the inner side of the middle shaft positioning sleeve 41 is provided with the shaft rotating groove 411 for the shaft rotating part 522 to rotate and embed, preferably, the buckling part 521 and the driving part 523 of the switch locking buckle 52 are in L-shaped distribution, and the shaft rotating part 522 is located at the connecting point position between the buckling part 521 and the driving part 523, when the driving part 523 changes the angle, the buckling part 521 on the other side of the shaft rotating part 522 also changes the angle as the fulcrum, the outer side of the middle shaft 2 is provided with the rotating strip 21, the rotating strip 21 is internally provided with the driving groove 211 for the driving part 523 to embed, as the principle of the lever, when the middle shaft 2 is pushed and twisted or released by the switch 51 and moves forward, the driving groove 211 moves forward with the driving part 523 in some groove surface, so that the driving part 523 changes the angle, under the action of the shaft rotating part 522 fulcrum, the buckling part 521 on the other end expands outward and is separated from the brush head locking buckle 11, so that the brush head 1 at the end can be taken out, of course, in this case, the forward and backward strokes of the middle shaft 2 are controlled, the end of the middle shaft 2 can abut to the end surface of the brush head 1 outside the locking hole 302 when moving forward, so as to directly push out the brush head 1 and complete the automatic falling of the brush head 1, which can avoid the need to take the brush head 1 by hand.

[0031] Specifically, the driving relationship between the middle shaft 2 and the middle shaft positioning sleeve 41, because the middle shaft 2 needs to move forward and backward, and the middle shaft positioning sleeve 41 cannot move forward and backward, but the middle shaft 2 needs to rotate with the middle shaft positioning sleeve 41 relative to the middle shaft sleeve 3, here, a tooth groove 412 meshing with the toothed belt rotating strip 21 is arranged on the middle shaft hole 301, one end of the middle shaft positioning sleeve 41 is provided with a bearing part 413, the inner ring of the bearing 6 is sleeved at the bearing part 413, the outer ring of the bearing 6 is sleeved on the inner side of the middle shaft sleeve 3, one side of the middle shaft sleeve 3 is recessed to form a switch sliding groove 31, the release switch 51 is slidingly arranged in the switch sliding groove 31, preferably, the release switch 51 is provided with a guide block on the side, and the switch sliding groove 31 is provided with a guide groove, thereby realizing the sliding of the release switch 51 in the switch sliding groove 31, because the middle shaft 2 needs to rotate, the middle shaft 2 cannot be hard connected with the release switch 51, here, one end of the middle shaft 2 is provided with a linkage groove 22, one side of the release switch 51 extends out a linkage piece 23, the action end of the linkage piece 23 extends into the linkage groove 22, the linkage piece 23 does not prevent the middle shaft 2 from rotating, but when the release switch 51 is actuated, the linkage piece 23 moves forward, which will move the middle shaft 2 forward.

[0032] Specifically, such as toilet brush, strong brush type brush head 1, many are disposable, when finished, to take off and replace the new brush head 1 process, if you need to use hand to take, will dirty hands, here, provides a kind of not need to use hand to take brush head 1 can make brush head 1 automatically fall off the rebound self mechanism 7, the rebound self mechanism 7 includes spring cap 71, spring 72 and push column 73, the inside of the spring cap 71 is recessed to form a push cavity 711 for the push column 73 to extend into, the outside of the spring cap 71 is provided with a push head 713, the inside of the brush head positioning sleeve 42 is provided with a top hole 304 for the push head 713 to extend out, the outside of the push column 73 in the push cavity 711 is sleeved with the spring 72, wherein the diameter of the push column 73 is less than the diameter of the shaft 2, so that one end of the spring 72 abuts against the end face of the shaft 2 and the push column 73, and the other end abuts against the inside bottom face of the push cavity 711 of the spring cap 71, the outside of the spring cap 71 is further provided with an anti-exit edge 712, and the outer push head 713 of the spring cap 71 can pass through the top hole 304 and abut against the inside end face of the brush head 1 or the brush head lock catch 11, so that when the shaft 2 drives the lock catch switch to rotate an angle to release the locking relationship with the brush head lock catch 11, the shaft 2 continues to push forward, and the spring cap 71 is driven by the spring 72 to push the top head 713 forward, the top head 713 of the spring cap 71 passes through the top hole 304 and abuts against the end face of the brush head 1 or the brush head lock catch 11, and finally the brush head 1 is directly pushed out, thereby realizing the automatic falling off of the brush head 1, and when the brush head lock catch 11 of the new brush head 1 is put on next time, the end face of the brush head 1 or the end face of the brush head lock catch 11 abuts against the top head 713 forward to compress the spring cap 71 inward and push the top head 713 of the spring cap 71, which extends outward, back to the inside of the top hole 304 of the brush head positioning sleeve 42, and the shaft 2 is driven backward by the compression of the spring 72, thereby driving the release switch 51 at the rear end to reset, and when the brush head lock catch 11 and the switch lock catch 52 are buckled, the installation is completed, and so on.

[0033] Specifically, the inside of the brush head 1 is provided with a sleeve groove 12 sleeved with a sleeve position 421, the sleeve groove 12 and the sleeve position 421 have the same groove type, and the preferred groove type is an inner five-angle and an outer five-angle.

[0034] The utility model also discloses a long-handled brush. The long brush handle 8 can be used in application scenarios such as toilet brushes, wall brushes and floor brushes that require an extended handle. It specifically includes a brush head 1 and a brush handle 8. A central axis sleeve 3 is connected between the brush head 1 and the brush handle 8. It also includes the brush head 1 replacement mechanism described above. A battery 81, a reduction motor group 82 and a control board 83 are provided on the inner side of the brush handle 8 in sequence. The output shaft of the reduction motor group 82 is drive-connected to the central axis 2. Here, the drive connection includes a hard-connected drive and a non-hard-connected drive. When it is in a hard-connected drive, when the central axis 2 needs to move forward, it is necessary to release this hard connection relationship, such as releasing a hard-connected screw or a hand-tightening screw. When it is in a non-hard connection, a solution is provided here, specifically: a shaft sleeve 13 is provided on one side of the central axis 2, and a sleeve groove 131 is provided in the shaft sleeve 13. The sleeve groove 131 is connected to the output shaft sleeve 13 of the reduction motor group 82. With such a configuration, when the central axis 2 needs to move forward or backward, The central axis 2 will not be affected by the hard connection of the output shaft. A non-hard connection is adopted here. Instead, the central axis 2 will rotate only when the output shaft rotates. Here, the groove shape in the sleeve groove 131 is exactly consistent with the external shape of the output shaft. Preferably, a pentagon is adopted. As a preferred embodiment, a switch button 84 is also provided here, which is provided on the control panel. The switch button 84 can be a button type or a touch screen type, and a power display area is also integrated on the control panel 83. For brush charging, the traditional one is generally set on the side, because the closer to the brush head 1, the greater the probability of it being splashed with dirt. Here, a charging port 85 is provided at the end of the brush handle 8, and a charging protective cover 86 is provided on the outside of the charging port 85. Setting the charging port 85 to the position closest to the brush head 1 can effectively prevent dirt from entering the charging port 85, and a charging protective cover 86 is also provided here. The charging protective cover 86 is preferably connected by plugging or threading and has soft rubber waterproof properties, which can fully prevent dirt from entering the charging port 85.

[0035] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A brush head replacement mechanism, comprising a brush head, characterized in that: It also includes a central axis, a central axis sleeve, a positioning sleeve assembly and a switch assembly, the switch assembly includes a release switch and a switch lock, the outer side of the central axis is provided with a central axis sleeve, the release switch is arranged at one end of the central axis sleeve and is connected inwardly to one side of the central axis and controls the forward and backward movement of the central axis, the other end of the central axis abuts against the switch lock and can control the opening of the switch lock, the end of the brush head is provided with a brush head lock, one side of the positioning sleeve assembly forms a central axis hole for the central axis to pass through, the other side forms a lock hole for the brush head lock to pass through, and the inside forms a accommodating cavity for accommodating the switch lock, the brush head lock can be extended into the accommodating cavity and contracted with the switch lock, and at the same time, the central axis movement is controlled by the release switch to trigger the switch lock to open, thereby releasing the brush head, and a bearing is also connected to the outer side of one end of the positioning sleeve assembly and the inner side of one end of the central axis sleeve.

2. A brush head replacement mechanism according to claim 1, characterized in that: The positioning sleeve assembly includes a central axis positioning sleeve and a brush head positioning sleeve fixedly connected to each other, a locking hole is provided on the inner side of one end of the central axis positioning sleeve, and a sleeve connection position for the brush head is provided on the outer side, and the switch lock includes a snap-fitting part, an axis rotating part and a driving part, wherein the snap-fitting part is used to snap-fit ​​with the brush head lock, the inner side of the central axis positioning sleeve is provided with an axis rotating groove for the axis rotating part to rotate and embed, the outer side of the central axis is provided with a belt rotating strip, and the belt rotating strip is provided with a driving groove for the driving part to embed.

3. A brush head replacement mechanism according to claim 2, characterized in that: The central axis hole is provided with a tooth groove that engages with the rotating bar, one end of the central axis positioning sleeve is provided with a load-bearing part, the inner ring of the bearing is sleeved on the load-bearing part, the outer ring of the bearing is sleeved on the inner side of the central axis sleeve, one side of the central axis sleeve is recessed to form a switch slide groove, the release switch is slidably set in the switch slide groove, one end of the central axis is provided with a linkage groove, a linkage paddle extends from one side of the release switch, and the active end of the linkage paddle extends into the linkage groove.

4. A brush head replacement mechanism according to claim 2, characterized in that: It also includes a rebound self-detachment mechanism, which includes a spring cap, a spring and a push column. The inner side of the spring cap is recessed to form a push cavity for the push column to extend into, and a push head is provided on the outer side. The inner side of the brush head positioning sleeve is provided with a push-off hole for the push head to extend out. A spring is sleeved in the push cavity and on the outer side of the push column, wherein the diameter of the push column is smaller than the diameter of the central axis. The outer side of the spring cap is also provided with an anti-detachment edge and the outer side of the spring cap can pass through the lock hole and abut against the inner end face of the brush head or the brush head lock.

5. A brush head replacement mechanism according to claim 2, characterized in that: The inner side of the brush head is provided with a sleeve groove which is sleeved with the sleeve position, and the sleeve groove and the sleeve position have the same groove shape.

6. A long-handled brush comprising a brush head and a brush handle, wherein a central axis sheath is connected between the brush head and the brush handle, characterized in that: It also includes the brush head replacement mechanism described in any one of claims 1 to 5 above, wherein a battery, a reduction motor group and a control panel are sequentially arranged on the inner side of the brush handle, the output shaft of the reduction motor group is drive-connected to the central shaft, and a switch button is provided on the control panel.

7. A long-handled brush according to claim 6, characterized in that: A shaft sleeve is provided on one side of the central shaft, a sleeve groove is provided in the sleeve, and the sleeve groove is sleeved with the output shaft of the reduction motor group.

8. A long-handled brush according to claim 6, characterized in that: A charging port is provided at the end of the brush handle, and a charging protection cover is provided on the outer side of the charging port.

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