A convenient electric roller brush

Abstract

The utility model discloses a kind of electric roll brush of convenient disassembly and assembly, including motor, transmission shaft body, transmission shaft body outside is sleeved with brush cylinder, and brush cylinder periphery is equipped with bristle;The output shaft of motor is coaxially connected with transmission shaft body, and is used to drive transmission shaft body to rotate with central axis, and transmission shaft body and brush cylinder are detachably connected by elastic buckle structure, and the end of brush cylinder away from motor is equipped with unlocking press piece, and only need to press the unlocking press piece of brush cylinder end portion, the connection between brush cylinder and transmission shaft body can be released, it is simple to operate, disassembly is convenient, and it is convenient to brush cylinder independent cleaning maintenance.

Description

Technical Field

[0001] This utility model relates to the field of cleaning devices, and in particular to an electric roller brush that is easy to assemble and disassemble. Background Technology

[0002] In the field of cleaning equipment, electric roller brushes are a commonly used cleaning tool, widely applied in various scenarios requiring surface cleaning, such as household floor cleaning and object surface cleaning. Traditional electric roller brushes typically consist of basic components such as a motor, drive shaft, and brush cylinder. The motor drives the brush cylinder to rotate via the drive shaft, and the bristles on the outer periphery of the brush cylinder contact the surface to be cleaned, thereby achieving the cleaning function.

[0003] For example, invention patent CN103501671A discloses a cleaning device including a housing and multiple electric motors, each motor having a rotating shaft that can selectively fix a rotating brush. At least a portion of the bristles of each rotating brush extends below the plane on the lower side of the housing, and the electric motor can drive the rotating brush to clean the grill. The aforementioned invention patent does not disclose the specific connection structure between the rotating brush and the rotating shaft. Different connection structures will affect the efficiency of disassembling and assembling the rotating brush, and difficulties in disassembling and assembling the rotating brush will lead to inconvenience in cleaning and maintaining the rotating brush.

[0004] In view of this, the present invention proposes an electric roller brush that is easy to assemble and disassemble in order to solve the above problems. Summary of the Invention

[0005] In order to overcome the shortcomings of the above-mentioned technology, this utility model provides an electric roller brush that is easy to assemble and disassemble, and sprays water to assist the brush head during the cleaning process, thereby improving the cleaning effect of the cleaning device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An easy-to-assemble and disassemble electric roller brush includes a motor and a drive shaft. A brush cylinder is sleeved on the outside of the drive shaft, and the brush cylinder is provided with bristles on its outer periphery. The output shaft of the motor is coaxially connected to the drive shaft and is used to drive the drive shaft to rotate around a central axis. The drive shaft and the brush cylinder are detachably connected by an elastic snap-fit ​​structure. The end of the brush cylinder facing away from the motor is provided with an unlocking button, which is used to press and release the connection between the elastic snap-fit ​​structure and the brush cylinder.

[0007] Preferably, the transmission shaft body has a receiving cavity near the unlocking button. The elastic buckle structure includes a push rod, a snap-fit ​​member disposed in the receiving cavity, and a spring. One end of the spring is fixed in the receiving cavity, and the other end of the spring is connected to the snap-fit ​​member. The side wall of the transmission shaft body has a through hole communicating with the receiving cavity. The snap-fit ​​member has an elastic buckle extending out of the through hole. The inner wall of the brush cylinder has a first step for engaging with the elastic buckle. The push rod is located between the unlocking button and the snap-fit ​​member. One end of the push rod passes through the receiving cavity and connects with the snap-fit ​​member. The push rod is driven by the unlocking button to push the snap-fit ​​member towards the spring, while simultaneously causing the elastic buckle to retract into the receiving cavity.

[0008] Preferably, the unlocking button is placed inside the brush cylinder, and the inner wall of the brush cylinder is provided with an annular step around the central axis. The unlocking button is divided into a positioning part and a pressing part along the central axis. The outer diameter of the positioning part is larger than the inner diameter of the annular step, and the positioning part can move along the central axis between the first step and the annular step. The outer diameter of the positioning part is larger than the inner diameter of the annular step. The pressing part is located between the positioning part and the port of the brush cylinder, and the outer diameter of the pressing part is smaller than the inner diameter of the annular step.

[0009] Preferably, the snap-fit ​​component further includes a central portion, one end of which is in contact with a spring and the other end of which is fixedly connected to a push rod, and at least two elastic buckles are uniformly formed on the outer circumference of the central portion.

[0010] Preferably, the end of the unlocking button facing the push rod is provided with a receiving groove, and the part of the push rod that protrudes from the transmission shaft is placed in the receiving groove.

[0011] Preferably, the transmission shaft is divided into a connecting section and an extension section along the central axis. The connecting section is used to fix the output shaft of the motor. The receiving cavity is disposed in the extension section. The outer diameter of the connecting section is larger than the outer diameter of the extension section. The brush cylinder is provided with a channel along the central axis. The channel is divided into a first section, a second section, and a third section along the central axis. The diameter of the first section is adapted to the diameter of the connecting section. The diameter of the second section is adapted to the outer diameter of the extension section. The diameter of the third section is adapted to the unlocking button. The first step is located at the connection between the second and third sections. The annular step is located on the inner wall of the brush cylinder in the third section.

[0012] Preferably, a guide slope is provided at the connection between the first segment and the second segment, and the elastic buckle is provided with a contact slope for contacting the inner wall of the brush tube. The guide slope can compress the elastic buckle back into the receiving cavity by colliding with the contact slope.

[0013] Preferably, one end of the brush tube is recessed inward along the central axis to form a positioning recess in the first section, and the connecting shaft section is provided with a positioning protrusion on its outer periphery for engaging with the positioning recess.

[0014] Preferably, the transmission shaft body has a connecting hole at one end facing the motor, the output shaft of the motor is connected to the connecting hole, and the transmission shaft body and the output shaft are also fixedly connected by a pin perpendicular to the central axis.

[0015] Preferably, the electric roller brush further includes a C-shaped buckle that is snapped onto the outside of the drive shaft body. The C-shaped buckle is used to press the positioning protrusion onto the positioning protrusion, and the pin is disposed inside the C-shaped buckle.

[0016] Preferably, the brush cylinder is provided with a plurality of continuously distributed bristles with spiral trajectories evenly arranged around its circumference, and the bristles extend outward in a radial direction.

[0017] Compared with the prior art, the beneficial effects of this utility model are: 1. The brush cylinder and the drive shaft of this utility model are connected by an elastic snap-fit ​​structure. The end of the brush cylinder facing away from the motor is provided with an unlocking button. The connection between the brush cylinder and the drive shaft can be released simply by pressing the unlocking button at the end of the brush cylinder. The operation is simple, the disassembly is convenient, and it is easy to clean and maintain the brush cylinder separately.

[0018] 2. When the brush tube of this utility model is installed, as the brush tube is pushed along the drive shaft, the contact slope of the elastic buckle contacts the guide slope of the inner wall of the brush tube, automatically compresses and retracts into the receiving cavity. After being pushed to the first step, the elastic buckle pops out of the through hole and locks into the first step of the brush tube, realizing one push to lock, without the need for precise alignment or additional fixing steps.

[0019] 3. The connecting section of the drive shaft is equipped with a positioning protrusion, and the corresponding position of the brush cylinder is equipped with a positioning recess. After the two are engaged, the circumferential rotation of the brush cylinder is further restricted, ensuring that the power of the motor is efficiently transmitted to the brush cylinder through the drive shaft and preventing slippage. At the same time, one end of the drive shaft is engaged with the first step through an elastic buckle, and the other end of the drive shaft is engaged with the positioning protrusion and the positioning recess, ensuring that the drive shaft is accurately engaged in the designated position on the brush cylinder. Attached Figure Description

[0020] Figure 1 This is an overall schematic diagram of an electric roller brush that is easy to assemble and disassemble according to this utility model; Figure 2 This is an exploded view of an electric roller brush that is easy to assemble and disassemble according to this utility model. Figure 3 This is a schematic diagram of an electric roller brush with the motor body omitted. Figure 4 yes Figure 3 Sectional view at point AA; Figure 5 This is a cross-sectional view of the brush cylinder of this utility model; Figure 6This utility model relates to an electric cleaning device for grills that utilizes an electric roller brush. The implementation, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] The following examples provide a more detailed description of the features and other related characteristics of this utility model, to facilitate understanding by those skilled in the art: Reference Figures 1-6 This utility model provides an embodiment of an electric roller brush that is easy to assemble and disassemble.

[0022] An easy-to-assemble and disassemble electric roller brush includes a motor 1, a drive shaft 2, and a brush cylinder 3 fitted around the outside of the drive shaft 2. The brush cylinder 3 has bristles 36 on its outer periphery. The output shaft 11 of the motor 1 is coaxially connected to the drive shaft 2 and drives the drive shaft 2 to rotate around its central axis. The drive shaft 2 and the brush cylinder 3 are detachably connected via an elastic snap-fit ​​structure. An unlocking button 4 is located at the end of the brush cylinder 3 facing away from the motor 1. The unlocking button 4 is used to press and release the connection between the elastic snap-fit ​​structure and the brush cylinder 3. Simply pressing the unlocking button 4 at the end of the brush cylinder 3 releases the connection between the brush cylinder 3 and the drive shaft 2, making operation simple.

[0023] like Figure 4 As shown, the transmission shaft 2 has a receiving cavity 21 near the unlocking button 4. The elastic buckle structure includes a push rod 51, a snap-fit ​​member 52 disposed in the receiving cavity 21, and a spring 53. One end of the spring 53 is fixed in the receiving cavity 21, and the other end of the spring 53 is connected to the snap-fit ​​member 52. The side wall of the transmission shaft 2 has a through hole 22 communicating with the receiving cavity 21. The snap-fit ​​member 52 has an elastic buckle 521 extending out of the through hole 22. The inner wall of the brush cylinder 3 has a first step 31 for engaging with the elastic buckle 521. The push rod 51 is located between the unlocking button 4 and the snap-fit ​​member 52, and one end of the push rod 51 passes through the receiving cavity 21 and is connected to the snap-fit ​​member 52.

[0024] The push rod 51 is driven by the unlocking button 4 to push the latch 52 towards the spring 53, and at the same time, the elastic buckle 521 retracts into the receiving cavity 21. The elastic buckle 521 is no longer connected to the first step 31, and the brush tube 3 is further pulled away from the drive shaft 2, so it can be disassembled and the brush tube 3 can be cleaned and maintained separately.

[0025] The unlocking button 4 is placed inside the brush cylinder 3. The inner wall of the brush cylinder 3 has an annular step 32 around its central axis. The unlocking button 4 is divided into a positioning part 41 and a pressing part 42 along the central axis. The outer diameter of the positioning part 41 is larger than the inner diameter of the annular step 32, and the positioning part 41 can move along the central axis between the first step 31 and the annular step 32. The outer diameter of the positioning part 41 is larger than the inner diameter of the annular step 32, which can prevent the unlocking button 4 from detaching from the brush cylinder 3. The pressing part 42 is located between the positioning part 41 and the end of the brush cylinder 3. The outer diameter of the pressing part 42 is smaller than the inner diameter of the annular step 32, ensuring that the unlocking button 4 can move along the central axis.

[0026] like Figure 1 As shown, the snap-fit ​​component 52 also includes a central portion 522, one end of which is in contact with the spring 53 and the other end of which is fixedly connected to the push rod 51. At least two elastic buckles 521 are uniformly formed on the outer circumference of the central portion 522, which can enhance the connection stability between the drive shaft 2 and the brush cylinder 3.

[0027] The end of the unlocking button 4 facing the push rod is provided with a receiving groove 43, and the part of the push rod that protrudes from the transmission shaft is placed in the receiving groove.

[0028] The transmission shaft 2 is divided into a connecting section 23 and an extension section 24 along the central axis. The connecting section 23 is used for fixed connection with the output shaft 11 of the motor 1, and the receiving cavity 21 is set in the extension section 24. The outer diameter of the connecting section 23 is larger than the outer diameter of the extension section 24. Figure 5 As shown, the brush cylinder 3 has a channel running through it along the central axis. The channel is divided into a first section 331, a second section 332, and a third section 333 along the central axis. The diameter of the first section 331 is matched with the diameter of the connecting shaft section 23. The diameter of the second section 332 is matched with the outer diameter of the extension section 24. The diameter of the third section 333 is matched with the unlocking button 4. This makes the brush cylinder 3 more compact with the drive shaft 2 and the unlocking button 4, and avoids the situation where there is a large gap between the brush cylinder 3 and the drive shaft 2 and the unlocking button 4, which would cause the parts to shake.

[0029] The first step 31 is located at the junction of the second section 332 and the third section 333, and the annular step 32 is located on the inner wall of the brush tube 3 of the third section 333.

[0030] A guide slope 34 is provided at the junction of the first segment 331 and the second segment 332. The elastic buckle 521 is provided with a contact slope 523 for contacting the inner wall of the brush cylinder 3. The guide slope 34 can compress the elastic buckle 521 back into the receiving cavity 21 by colliding with the contact slope 523. At the same time, the cooperation between the guide slope 34 and the contact slope 523 can avoid the wear of the parts caused by the large impact force generated by the contact.

[0031] One end of the brush cylinder 3 is recessed inward along the central axis to form a positioning recess 35 located in the first section 331, and the connecting shaft section 23 is provided with a positioning protrusion 25 on its outer periphery. When the positioning protrusion 25 is engaged in the positioning recess 35, it limits the brush cylinder 3 from rotating relative to the transmission shaft 2, ensuring that the power of the motor 1 is efficiently transmitted to the brush cylinder 3 through the transmission shaft 2 and avoiding slippage.

[0032] Meanwhile, one end of the drive shaft 2 engages with the first step 31 via an elastic buckle 521, and the other end of the drive shaft 2 engages with the positioning recess 35 via a positioning protrusion 25, ensuring that the drive shaft 2 is accurately engaged at the designated position of the brush cylinder 3.

[0033] The transmission shaft 2 has a connection hole at one end facing the motor 1. The output shaft 11 of the motor 1 is connected to the connection hole 26. The transmission shaft 2 and the output shaft 11 are also fixedly connected by a pin 61 perpendicular to the central axis.

[0034] The electric roller brush also includes a C-shaped buckle 6 that is snapped onto the outside of the drive shaft 2. The C-shaped buckle 6 is used to press the positioning protrusion 25 onto the positioning protrusion 25. The pin 61 is located inside the C-shaped buckle 6, so that the connection between the brush cylinder 3 and the output shaft 11 of the motor 1 of the drive shaft 2 is tighter.

[0035] The brush cylinder 3 has multiple bristles 36 evenly arranged in a spiral pattern around its circumference. The bristles 36 extend outward in the radial direction. In contrast to conventional brush cylinders, which have multiple bristles arranged in a straight pattern around their circumference, the continuous spiral pattern of the bristles 36 in the brush cylinder 3 results in a higher bristle density and improves the cleaning ability of the roller brush.

[0036] The electric roller brush of this invention can be used in various cleaning devices. For example... Figure 6 As shown, this is an electric cleaning device for a grill that uses an electric roller brush.

[0037] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the contents of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. An electric roller brush that is easy to assemble and disassemble, characterized in that, Includes an electric motor (1) and a transmission shaft (2). A brush cylinder (3) is fitted on the outside of the transmission shaft (2), and the brush cylinder (3) has bristles on its outer periphery. The output shaft (11) of the electric motor (1) is coaxially connected to the transmission shaft (2) and is used to drive the transmission shaft (2) to rotate around the central axis. The transmission shaft (2) and the brush cylinder (3) are detachably connected by an elastic buckle structure. The end of the brush cylinder (3) facing away from the electric motor (1) is provided with an unlocking button (4), which is used to press and release the connection between the elastic buckle structure and the brush cylinder (3).

2. The easily detachable electric roller brush according to claim 1, characterized in that, The drive shaft (2) has a receiving cavity (21) near the unlocking button (4). The elastic buckle structure includes a push rod (51), a snap-fit ​​element (52) disposed in the receiving cavity (21), and a spring (53). One end of the spring (53) is fixed in the receiving cavity (21), and the other end of the spring (53) is connected to the snap-fit ​​element (52). The side wall of the drive shaft (2) has a through hole communicating with the receiving cavity (21), and the snap-fit ​​element (52) has a part extending out of the through hole. The inner wall of the brush tube (3) is provided with a first step (31) for engaging with the elastic buckle (521). The push rod (51) is located between the unlocking button (4) and the engaging member (52). One end of the push rod (51) passes through the receiving cavity (21) and connects with the engaging member (52). The push rod (51) will be driven by the unlocking button (4) to push the engaging member (52) towards the spring (53), while causing the elastic buckle (521) to retract into the receiving cavity (21).

3. The easily detachable electric roller brush according to claim 2, characterized in that, The unlocking button (4) is placed inside the brush tube (3). The inner wall of the brush tube (3) is provided with a ring step (32) around the central axis. The unlocking button (4) is divided into a positioning part (41) and a pressing part (42) along the central axis. The outer diameter of the positioning part (41) is larger than the inner diameter of the ring step (32), and the positioning part (41) can move along the central axis between the first step (31) and the ring step (32). The pressing part (42) is located between the positioning part (41) and the port of the brush tube (3). The outer diameter of the pressing part (42) is smaller than the inner diameter of the ring step (32).

4. The easily detachable electric roller brush according to claim 3, characterized in that, The snap-fit ​​component (52) also includes a central part (522), one end of which is in contact with a spring (53) and the other end of which is fixedly connected to a push rod (51). At least two elastic buckles (521) are uniformly formed on the outer circumference of the central part (522).

5. The easily detachable electric roller brush according to claim 2, characterized in that, The unlocking button (4) has a receiving groove at one end facing the push rod (51), and the part of the push rod (51) that passes through the transmission shaft (2) is placed in the receiving groove.

6. The easily detachable electric roller brush according to claim 3, characterized in that, The transmission shaft (2) is divided into a connecting section (23) and an extension section (24) along the central axis. The connecting section (23) is used to fix the output shaft (11) of the motor (1). The receiving cavity (21) is set in the extension section (24). The outer diameter of the connecting section (23) is larger than the outer diameter of the extension section (24). The brush cylinder (3) is provided with a channel along the central axis. The channel is divided into a first section (331), a second section (332), and a third section (333) along the central axis. The diameter of the first section (331) is adapted to the diameter of the connecting section (23). The diameter of the second section (332) is adapted to the outer diameter of the extension section (24). The diameter of the third section (333) is adapted to the unlocking button (4). The first step (31) is located at the connection between the second section (332) and the third section (333). The annular step (32) is located on the inner wall of the brush cylinder (3) of the third section (333).

7. The easily detachable electric roller brush according to claim 6, characterized in that, A guide slope (34) is provided at the connection between the first segment (331) and the second segment (332). The elastic buckle (521) is provided with a contact slope (523) for contacting the inner wall of the brush tube (3). The guide slope (34) can compress the elastic buckle (521) back into the receiving cavity (21) by colliding with the contact slope (523).

8. The easily detachable electric roller brush according to claim 6, characterized in that, One end of the brush tube (3) is recessed inward along the central axis to form a positioning recess (35) in the first section (331). The connecting shaft section (23) has a positioning protrusion on its outer periphery for locking into the positioning recess (35).

9. The easily detachable electric roller brush according to claim 8, characterized in that, The drive shaft (2) has a connection hole (26) at one end facing the motor (1). The output shaft (11) of the motor (1) is connected to the connection hole (26). The drive shaft (2) and the output shaft (11) are also fixedly connected by a pin (61) perpendicular to the central axis. The electric roller brush also includes a C-shaped buckle (6) that is clipped on the outside of the drive shaft (2). The C-shaped buckle (6) is used to press the positioning protrusion onto the positioning protrusion. The pin (61) is located inside the C-shaped buckle (6).

10. The easily detachable electric roller brush according to claim 1, characterized in that, The brush cylinder (3) is uniformly provided with multiple continuously distributed bristles (36) in a spiral trajectory, and the bristles extend outward in a radial direction.

Images