CN213962232U

CN213962232U - Electric cleaning brush

Info

Publication number: CN213962232U
Application number: CN202023296890.5U
Authority: CN
Inventors: 苏征兵
Original assignee: Foshan City Senmi Electrical Appliance Co ltd
Current assignee: Foshan City Senmi Electrical Appliance Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-08-17
Anticipated expiration: 2030-12-30

Abstract

The utility model relates to an electric cleaning brush, which comprises a brush holder component and a brush head component; the brush holder assembly comprises a shell, a motor arranged in the shell and a rotary joint in transmission connection with a rotating shaft of the motor, and the brush head assembly comprises a brush part, a brush rod and a connector; the peripheral wall of the rotary joint is enclosed into an inserting cavity, and the connector is at least partially inserted into the inserting cavity; the peripheral wall of the rotary joint is provided with a torque transmission plane, the connecting head is provided with a torque receiving plane, and the torque receiving plane is attached to the torque transmission plane, so that the transmission of the rotary driving force is performed between the rotary joint and the brush head assembly; the peripheral wall of the rotary joint is provided with a slotted hole extending along the axial direction of the rotary joint, an elastic cantilever is arranged in the slotted hole, a clamping protrusion extending into the splicing cavity is formed on the elastic cantilever, a clamping groove is formed on the connecting joint, and the clamping protrusion and the clamping groove are in detachable positioning connection. The utility model discloses an electric cleaning brush has brush head subassembly easy dismounting and can stably receive rotary drive power's advantage.

Description

Electric cleaning brush

Technical Field

The utility model relates to an electric cleaning brush; and more particularly, to an electric cleaning brush having a brush head assembly that is detachable.

Background

A power-driven cleaning brush generally includes a brush holder assembly and a brush head assembly, and a motor is disposed in a housing of the brush holder assembly for driving the brush head assembly to rotate to perform a cleaning operation.

Wherein the brush head assembly is removably or non-removably fixedly connected to the handle assembly. The brush head assembly and the brush handle assembly are fixedly connected in a non-detachable mode, and the toothbrush has the advantages that the brush head assembly can be guaranteed to stably and reliably rotate during cleaning operation, but the toothbrush does not occupy a large space during product transportation or storage. The brush head assembly and the brush handle assembly are detachably and fixedly connected, so that the occupied volume of a product during transportation or storage can be remarkably reduced, but the problem that the brush head assembly cannot stably and reliably receive a rotary driving force and/or is inconvenient to disassemble and assemble is easily caused by the conventional detachable connection mode.

For example, chinese patent document CN205413836U discloses an electric cleaning brush, which comprises a handle, a motor, a rotating shaft, a switch and a power supply, wherein the rotating shaft is driven by the motor and is installed on an output shaft of the motor, the motor and the rotating shaft are arranged in the handle, a detachable brush head is installed at the lower end of the rotating shaft, the brush head comprises bristles and a brush rod, and the upper end of the brush rod is in threaded connection with the lower end of the rotating shaft.

In the prior art, the brush rod is in threaded connection with the rotating shaft, so that the defects of time consumption and inconvenience in operation for disassembling the brush head exist. In addition, the screw connection is easily loosened during the rotation (especially, the bidirectional rotation) of the brush head, and thus there is a problem that the brush head cannot stably and reliably receive the rotational driving force.

Disclosure of Invention

The utility model mainly aims at providing a brush head subassembly easy dismounting just can stably receive rotary drive power's electronic cleaning brush.

In order to achieve the above-mentioned main object, the utility model provides an electric cleaning brush, include:

the toothbrush head assembly comprises a toothbrush bristle part, a toothbrush rod and a connector;

the brush holder assembly comprises a shell, a motor and a rotary joint, wherein the motor is arranged in the shell, and the rotary joint is in transmission connection with a rotating shaft of the motor;

the peripheral wall of the rotary joint encloses an insertion cavity, and at least one part of the connector is detachably inserted in the insertion cavity;

the peripheral wall of the rotary joint is provided with a torque transmission plane, the connecting head is provided with a torque receiving plane, and the torque receiving plane is attached to the torque transmission plane, so that the transmission of rotary driving force is performed between the rotary joint and the brush head assembly;

a slotted hole extending along the axial direction of the rotary joint is formed in the peripheral wall of the rotary joint, an elastic cantilever is arranged in the slotted hole, and a clamping bulge extending into the inserting cavity is formed on the elastic cantilever; the connecting head is provided with a clamping groove, and the clamping protrusion is connected with the clamping groove in a detachable positioning mode.

In the electric cleaning brush of the utility model, the detachable plug connection is formed between the connector and the rotary joint, which has the advantage that the brush head component is convenient and fast to disassemble and assemble; the rotary joint is provided with a peripheral wall which is enclosed into an inserting cavity, the peripheral wall has better structural strength and is not easy to deform, a torque transmission plane on the peripheral wall can be well attached to a torque receiving plane when the rotary driving force is transmitted, and meanwhile, a clamping protrusion and a clamping groove are formed to be connected in a clamping mode to achieve axial anti-falling of the connector in the rotating process, so that the rotary driving force can be stably and reliably transmitted between the connector and the rotary joint.

According to a specific embodiment of the present invention, the circumferential wall of the rotary joint is provided with two opposite slots, and each slot is provided with one elastic cantilever; the connector is correspondingly provided with two clamping grooves, two clamping protrusions on the elastic cantilever and two clamping grooves respectively form detachable positioning connection. Set up two buckle connection structure and can realize the axial anticreep of rotatory in-process connector more reliably.

Furthermore, the perisporium of rotary joint has two relative settings the moment of torsion transmission plane, the connector correspondence is formed with two the moment of torsion receiving plane, two the moment of torsion transmission plane with two the moment of torsion receiving plane laminates respectively to make the transmission of moment of torsion more steady.

Furthermore, the two opposite sides of the rotary joint are respectively provided with the torque transmission plane and the slotted hole, which is beneficial to the miniaturization of the rotary joint and the connector; the torque transmission plane is located in front of the slotted hole, and the clamping groove on the connector is correspondingly closer to the end part of the connector, so that the structural strength of the rotary joint and the connector is enhanced.

Preferably, the torque transmitting plane and the torque receiving plane are both arranged parallel to the rotational axis of the rotary joint. So set up, the connector can not receive the axial effort towards its front end at rotatory in-process, ensures that the connector can not break away from rotary joint at rotatory in-process.

According to a specific embodiment of the present invention, an insertion stopping step surface is formed in the insertion cavity, and the connector has a stopped step surface matched with the insertion stopping step surface; the plug-in stopping step surface is abutted against the stopped step surface to limit the plug-in depth of the connector in the plug-in cavity, so that a user can conveniently and rapidly insert the connector.

According to a specific embodiment of the present invention, the peripheral wall of the rotary joint and the elastic cantilever are integrally formed; the connector and the brush rod are integrated or fixedly connected.

According to the utility model discloses a concrete implementation mode, the shell includes the main casing body, protecgulum and hou gai, the back lid with the back end of the main casing body forms to dismantle the connection, the protecgulum with the front end of the main casing body forms non-detachable buckle and connects.

According to the utility model discloses a concrete implementation mode, the brush holder subassembly is still including setting up inner bag in the shell, the motor is installed in the inner bag, still be provided with in the inner bag with the battery that the motor electricity is connected.

To more clearly illustrate the objects, technical solutions and advantages of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.

Drawings

FIG. 1 is a general structural view of an embodiment of the electric cleaning brush of the present invention;

FIG. 2 is a sectional view of the electric cleaning brush according to the embodiment of the present invention;

FIG. 3 is a structural diagram of the present invention with the connector and the rotary joint disassembled;

fig. 4 is a perspective cross-sectional view of an embodiment of a swivel joint of the present invention;

fig. 5 is an axial sectional view of the middle joint and the rotary joint in the connected state of the present invention.

Detailed Description

Referring to fig. 1 and 2, the electric cleaning brush of the embodiment of the present invention includes a brush holder assembly 10 and a brush head assembly 20, wherein the housing of the brush holder assembly 10 includes a main housing 11, a front cover 12 and a rear cover 13, the rear cover 13 is detachably connected to the rear end of the main housing 11, and the front cover 12 is connected to the front end of the main housing 11 by a non-detachable buckle. The main housing 11 preferably has an appearance convenient for holding, and is formed by splicing a first housing 111 and a second housing 112 which are arranged approximately symmetrically, and the first housing 111 and the second housing 112 can be connected by a snap connection. The housing of the handle assembly 10 may also take on other shapes and configurations than that shown in fig. 1, and the present invention is not limited thereto.

Handle assembly 10 further includes a motor 16 and a battery 17 disposed within the housing, with battery 17 being electrically connected to motor 16 for supplying power to motor 16. Specifically, an inner container formed by splicing a first inner container shell 181 and a second inner container shell 182 is arranged in the main casing 11, the motor 16 is installed in a front cavity of the inner container, and the four batteries 17 are accommodated in a rear cavity of the inner container. The replacement operation of the battery 17 can be performed by opening the rear cover 13. In other embodiments of the present invention, a power plug may be provided on handle assembly 10, which may be connected to a mains outlet to provide power to motor 16, with or without a battery provided on handle assembly 10.

The housing of the brush holder assembly 10 is provided with a control switch 15 for controlling the motor 16, the front end of the housing is provided with a rotary joint 14, one end of the rotary joint 14 is in transmission connection with a rotary shaft 161 (see fig. 3) of the motor 16, and the other end of the rotary joint extends out of the front cover 12. The motor 16 may be a single or double direction rotating motor.

The brush head assembly 20 includes a brush bar 21, a bristle part 22, and a connector 23. The brush part 22 may be provided only at the front end of the brush bar 21 as shown in fig. 1, or may be provided in another manner, for example, the brush part is provided at least half the length of the brush bar 21; the bristle part 22 may be mounted on the brush bar 21 in a non-removable manner or in a removable manner to facilitate faster replacement of a bristle part of a different profile or to replace a damaged bristle part.

The connector 23 and the brush bar 21 may be formed as a single piece (in which case the connector 23 and the brush bar 21 may be considered as separate components of the same component), or may be removably or non-removably secured. In the embodiment shown in fig. 1, the coupling head 23 is fixedly connected to the brush bar 21 in a non-detachable manner, for example, the rear end of the brush bar 21 is inserted into the front end of the coupling head 23 and fixed thereto by adhesive bonding.

The connector 23 forms a detachable plug connection with the rotary joint 14. Specifically, as shown in fig. 3 to 5, the rotary joint 14 has a circular peripheral wall 141 enclosing a plug cavity 1411, and at least a portion of the connector 23 is detachably plugged in the plug cavity 1411 for receiving a rotational driving force from the rotary joint 14. The rear end of the rotary joint 14 is formed with a connecting shaft hole 1414, and the rotating shaft 161 of the motor 16 is drivingly connected with the connecting shaft hole 1414 to drive the rotary joint 14 to rotate.

The peripheral wall 141 of the rotary joint 14 has two torque transmission planes 1412 which are oppositely arranged, the connecting head 23 is correspondingly provided with two torque receiving planes 231, and the two torque receiving planes 231 and the two torque transmission planes 1412 are respectively abutted, so that the transmission of the rotary driving force between the rotary joint 14 and the brush head assembly 20 is performed. Wherein the torque transmitting plane 1412 and the torque receiving plane 231 are both disposed parallel to the rotational axis of the rotary joint 14.

In order to prevent the coupling head 23 from being disengaged from the rotary joint 14 during rotation, a detachable snap connection is provided between the coupling head 23 and the rotary joint 14. Specifically, the peripheral wall 141 is provided with two slots 142 arranged oppositely, and the slots 142 extend along the axial direction of the rotary joint 14; each slot 142 is provided with an elastic cantilever 143 integrally formed with the peripheral wall 14, and the elastic cantilever 143 is provided with a clamping protrusion 1431 extending into the plugging cavity 1411; the connector 23 is correspondingly provided with two clamping grooves 232, and the two clamping protrusions 1431 and the two clamping grooves 232 are respectively connected in a detachable positioning manner, so that the connector 23 can be limited in the axial direction, and the connector 23 is prevented from being separated from the rotary joint 14 in the rotating process. Obviously, the utility model discloses well torque transmission and connector anticreep are realized separately by the cooperation structure of two kinds of differences.

The embodiment of the utility model provides an in, draw-in groove 232 and moment of torsion receiving plane 231 can be located the homonymy or the different sides of connector 23. Preferably, the two opposite sides of the connecting head 23 are respectively provided with a clamping groove 232 and a torque receiving plane 231; accordingly, the two slots 142 and the two torque transmitting surfaces 1412 are disposed to have the same facing directions, i.e., one slot 142 and one torque transmitting plane 1412 are located at a first side portion of the rotary joint 14, and the other slot 142 and the other torque transmitting plane 1412 are located at a second side portion of the rotary joint 14, the first side portion and the second side portion facing each other. Further, the torque transmitting flat 1412 is preferably disposed in front of the slot 142, and the engaging groove 232 is correspondingly closer to the end of the connecting head 23, so that the rotary joint 14 and the connecting head 23 have higher structural strength.

With continued reference to fig. 3 to 5, an insertion stop step surface 1413 is formed in the insertion cavity 1411, and the connector 23 has a stopped step surface 233 matched with the insertion stop step surface 1413; when the connector 23 is inserted into the insertion cavity 1411, the insertion stop step surface 1413 abuts against the stopped step surface 233 to limit the insertion depth of the connector 23 in the insertion cavity 1411, so that a user can insert the connector 23 quickly and accurately.

It is understood that in other embodiments of the present invention, only one torque transmitting plane 1412 and one torque receiving plane 231 may be disposed between the rotary joint 14 and the connection head 23, and only one detachable buckle-preventing structure may be disposed.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that equivalent modifications made in accordance with the present invention are intended to be covered by the scope of the present invention, as defined by the appended claims, by those skilled in the art, without departing from the scope of the present invention.

Claims

1. An electric cleaning brush comprising:

the brush holder assembly comprises a shell, a motor and a rotary joint, wherein the motor is arranged in the shell, and the rotary joint is in transmission connection with a rotating shaft of the motor; the method is characterized in that:

the peripheral wall of the rotary joint is enclosed into an insertion cavity, and at least one part of the connector is detachably inserted into the insertion cavity;

2. The electric cleaning brush according to claim 1, wherein: the peripheral wall of the rotary joint is provided with two opposite slotted holes, and each slotted hole is provided with one elastic cantilever; the connector is correspondingly provided with two clamping grooves, two clamping protrusions on the elastic cantilever and two clamping grooves respectively form detachable positioning connection.

3. The electric cleaning brush according to claim 2, wherein: the peripheral wall of the rotary joint is provided with two opposite torque transmission planes, the connector is correspondingly provided with two torque receiving planes, and the two torque transmission planes are respectively attached to the two torque receiving planes.

4. The electric cleaning brush according to claim 3, wherein: the two opposite sides of the rotary joint are respectively provided with the torque transmission plane and the slotted hole, and the torque transmission plane is positioned in front of the slotted hole.

5. The electric cleaning brush according to claim 1, wherein: the torque transmitting plane and the torque receiving plane are both arranged parallel to the rotational axis of the rotary joint.

6. The electric cleaning brush according to claim 1, wherein: an inserting stop step surface is formed in the inserting cavity, and the connector is provided with a stopped step surface matched with the inserting stop step surface; the plug-in stopping step surface is abutted with the stopped step surface to limit the plug-in depth of the connector in the plug-in cavity.

7. The electric cleaning brush according to claim 1, wherein: the peripheral wall of the rotary joint and the elastic cantilever are integrally formed.

8. The electric cleaning brush according to claim 1, wherein: the connector and the brush rod are integrated or fixedly connected.

9. The electric cleaning brush according to claim 1, wherein: the shell includes main casing body, protecgulum and hou gai, the back lid with the back end of the main casing body forms to dismantle and is connected, the protecgulum with the front end of the main casing body forms non-detachable buckle and connects.

10. The electric cleaning brush according to claim 1, wherein: the brush holder assembly further comprises an inner container arranged in the shell, the motor is arranged in the inner container, and a battery electrically connected with the motor is further arranged in the inner container.