Floor brush of dust collection equipment

Abstract

The floor brush of the dust collection equipment comprises a shell, a rolling brush, a motor and a transmission assembly, a concave cavity is formed in the bottom of the shell, and a flow guide channel is formed in the position, corresponding to the rear portion of the concave cavity, of the bottom of the shell; a motor cavity is formed in the shell and corresponds to the rear portion of the concave cavity, and a communication opening is formed between the motor cavity and the flow guide channel. The motor is installed in the motor cavity, a plurality of heat dissipation holes are formed in the position, corresponding to the motor, of the rear wall of the motor cavity, a metal filter plate is attached to the position, corresponding to the heat dissipation holes in the inner wall of the rear side of the motor cavity, of the motor cavity and abuts against the motor, and filter holes in the metal filter plate are separated by the contact position of the motor and the metal filter plate. According to the utility model, external air can be forced to enter the motor cavity through the heat dissipation holes for heat dissipation by using the suction force of the dust collection equipment, the heat dissipation area of the motor is effectively increased by abutting the metal filter plate against the motor, and meanwhile, the external air can be shunted by abutting the motor against the metal filter plate to flow through the upper part and the lower part of the motor at the same time; and the heat dissipation effect of the motor is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, in particular to a floor brush of a dust collection device. Background Art

[0002] Vacuum cleaners, mite removers, floor scrubbers and other vacuum cleaners are commonly used household appliances. Vacuum cleaners mostly include a floor brush and a host connected to the floor brush, wherein the host is used to provide suction, the floor brush is provided with a concave cavity and a guide channel connected to the concave cavity, a roller brush is placed in the concave cavity of the floor brush, and a motor for driving the roller brush to rotate is provided in the floor brush. The vacuum cleaner drives the roller brush through the motor and cooperates with the suction in the guide channel to achieve cleaning of the surface to be cleaned. The motor will inevitably generate heat during operation. However, the existing floor brushes mostly dissipate heat only through a simple heat dissipation hole structure, and the heat dissipation effect is poor, and there is room for improvement. Utility Model Content

[0003] The utility model aims to overcome the defects in the above-mentioned prior art and provides a floor brush for a vacuum cleaner, which can effectively utilize the suction force generated when the vacuum cleaner is working to force external air to enter the motor cavity through the heat dissipation holes to dissipate the heat of the motor inside it, and at the same time, the motor and the metal filter plate are abutted against each other, which not only effectively increases the heat dissipation area of ​​the motor, but also separates the filter holes on the metal filter plate at the abutment point, so that external air can flow through the lower and upper parts of the motor at the same time, thereby greatly improving the heat dissipation effect of the motor and ensuring the stability of the floor brush operation.

[0004] To achieve the above-mentioned purpose, the utility model provides a floor brush of a vacuum cleaner, comprising a shell, a roller brush, a motor and a transmission assembly, wherein the shell is provided with a transversely extending concave cavity at the longitudinal front end corresponding to the bottom thereof, and the shell is provided with a guide channel communicating with the concave cavity at the rear structure corresponding to the concave cavity, the roller brush is rotatably installed in the concave cavity, the motor is installed in the shell, and the transmission assembly is transmission-connected between the motor and the roller brush;

[0005] A motor cavity is arranged in the rear structure of the housing corresponding to one lateral side of the concave cavity, and a communication port is arranged between the motor cavity and the guide channel;

[0006] The motor is installed in the motor cavity, and a plurality of heat dissipation holes are arranged on the rear wall of the motor cavity corresponding to the motor. A metal filter plate is fitted at the heat dissipation holes on the rear inner wall of the motor cavity corresponding to the motor, and the metal filter plate is against the motor. The contact between the motor and the metal filter plate separates the filter holes on the metal filter plate into upper filter holes and lower filter holes which are respectively connected to the spaces above and below the contact.

[0007] Further set as: the wall surface of the rear wall of the motor cavity corresponding to the heat dissipation holes is an inclined surface structure, the metal filter plate is adhesively arranged on the inclined surface of the rear wall of the motor cavity, and the corner at the upper end of the motor abuts against the metal filter plate.

[0008] Further set as: a plurality of support ribs for supporting the motor are spaced on both the bottom wall and the top wall of the motor cavity, and a flow guiding groove is formed by cooperation between adjacent support ribs.

[0009] Further set as: through holes are provided on the support ribs.

[0010] Further set as: the transmission assembly includes a driving gear, a driven gear drivingly connected to the driving gear, and a driving seat linked to the driven gear. The driving gear is fixedly sleeved on the output shaft of the motor, and the driving seat is rotatably arranged on the end wall of the concave cavity.

[0011] Further set as: the transmission assembly further includes a mounting frame which is longitudinally extended and arranged between the bottom wall and the top wall of the housing to horizontally partition the inner cavity of the housing;

[0012] The motor and the driving gear are correspondingly arranged on both sides of the mounting frame, the driving seat and the driven gear are correspondingly arranged on both sides of the mounting frame. A receiving groove is provided on the mounting frame corresponding to the driving seat, and a bearing is fixedly embedded in the receiving groove. The driving seat has a linkage shaft connected to the driven gear, and the linkage shaft is fixedly connected to the inner ring of the bearing.

[0013] Further set as: the housing includes a bottom case and a top cover which are joined together. The bottom wall of the bottom case corresponding to its longitudinal front end bulges upward to form a concave cavity with one end open. The bottom case is provided with a lower mating rib extending vertically upward at the opening of the concave cavity to close the lower opening of the concave cavity, and a lower arc-shaped opening is provided on the lower mating rib;

[0014] The top cover is correspondingly provided with an upper mating rib extending vertically downward. An upper arc-shaped opening is provided on the upper mating rib. The upper mating rib and the lower mating rib are opposed to each other to close the opening of the concave cavity. At the same time, the upper arc-shaped opening and the lower arc-shaped opening cooperate to form a receiving opening for accommodating the driving seat.

[0015] Further set as: the housing further includes a sealing member and a joint fixedly clamped between the bottom case and the top cover. A suction port is provided on the rear wall of the concave cavity;

[0016] The sealing member is arranged on the bottom case and its front part is joined to the suction port of the concave cavity. The rear part of the sealing member has a connecting ring;

[0017] The joint is arranged on the bottom case and its inlet is joined to the connecting ring of the sealing member.

[0018] Further set as: the top wall of the concave cavity abuts against the top wall of the housing.

[0019] Compared with the prior art, the utility model has a simple and reasonable structure. By using the suction force generated during the operation of the dust suction device, external air is forced to enter the motor cavity through the heat dissipation holes to dissipate heat from the internal motor. At the same time, by abutting the motor against the metal filter plate, not only the heat dissipation area of the motor is effectively increased, but also the filter holes on the metal filter plate are separated at the abutting position, enabling external air to flow through the lower and upper parts of the motor simultaneously, thus greatly improving the heat dissipation effect of the motor and ensuring the stability of the floor brush during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a perspective structural view of the floor brush of a dust suction device of the utility model;

[0021] Figure 2 is a sectional structural view of the floor brush Figure 1 ;

[0022] Figure 3 is a sectional structural view of the floor brush Figure 2 ;

[0023] Figure 4 is a separated structural view of the transmission assembly;

[0024] Figure 5 is a separated structural view of the floor brush.

[0025] Combine the accompanying drawings and mark the following reference numerals on them:

[0026] 10, bottom shell; 11, concave cavity; 12, lower mating rib; 121, lower arc opening; 13, support rib; 20, top cover; 21, heat dissipation hole; 22, upper mating rib; 221, upper arc opening; 30, sealing member; 40, joint; 50, roller brush; 60, motor; 70, transmission assembly; 71, driving gear; 72, driven gear; 73, driving seat; 74, mounting bracket; 75, bearing; 80, metal filter plate; A, diversion channel; B, motor cavity. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following combines the accompanying drawings to describe in detail a specific embodiment of the utility model, but it should be understood that the protection scope of the utility model is not limited by the specific embodiment.

[0028] The floor brush of a dust suction device of the utility model is as shown in Figure 1 and Figure 5As shown, it includes a shell, a roller brush 50, a motor 60 and a transmission assembly 70; wherein, the shell is provided with a transversely extending concave cavity 11 at the longitudinal front end corresponding to the bottom thereof, and the shell is provided with a guide channel A communicating therewith at the rear structure corresponding to the concave cavity 11, the roller brush 50 is rotatably installed in the concave cavity 11, the motor 60 is installed in the shell and the transmission assembly 70 is transmission-connected between the motor 60 and the roller brush 50, so that during the operation of the vacuum cleaner, the roller brush 50 is driven to rotate by the motor 60 and cooperates with the suction force in the guide channel A to clean the surface to be cleaned.

[0029] In this embodiment, if Figure 3 and Figure 5 As shown, a motor cavity B is provided in the rear structure corresponding to the lateral side of the concave cavity 11 inside the shell, and a connecting port is provided between the motor cavity B and the guide channel A, and the motor 60 is installed in the motor cavity B, and a plurality of heat dissipation holes 21 are provided on the rear wall of the motor cavity B (i.e., the rear wall of the shell) corresponding to the motor 60; in this way, during the vacuuming process, the suction force in the guide channel A can force the external air to enter the motor cavity B through the heat dissipation holes 21 and enter the guide channel A through the connecting port, and the external air can effectively take away the heat of the motor 60 during the flow process, thereby greatly improving the heat dissipation effect of the motor 60.

[0030] In this embodiment, if Figure 3 and Figure 5 As shown, a metal filter plate 80 is fitted on the rear inner wall of the motor cavity B (i.e., the rear inner wall of the shell) corresponding to the heat dissipation hole 21, and the metal filter plate 80 is against the motor 60. At the same time, the contact between the motor 60 and the metal filter plate 80 divides the filter holes on the metal filter plate 80 into upper filter holes and lower filter holes respectively connected to the spaces above and below the contact point. In this way, the motor 60 effectively increases the effective heat dissipation area of ​​the motor 60 by contacting the metal filter plate 80. At the same time, external air can pass through the upper filter holes and the lower filter holes respectively to flow through the upper and lower parts of the motor 60, thereby better dissipating the heat of the motor 60. Specifically, the wall surface corresponding to the heat dissipation hole 21 on the rear wall of the motor cavity B is a slope structure, and the metal filter plate 80 is fitted on the slope of the rear wall of the motor cavity B, and the upper corner of the motor 60 is against the metal filter plate 80.

[0031] In the above scheme, preferably, support ribs 13 for supporting the motor 60 are provided on the top wall and the top wall of the shell, and adjacent support ribs 13 cooperate to form guide grooves, and through holes are provided on the support ribs 13, so that the external air can be better forced to flow in the upper space and the lower space of the motor 60, thereby further improving the heat dissipation effect of the motor 60.

[0032] In this embodiment, if Figure 4 and Figure 5As shown, the transmission assembly 70 includes a mounting bracket 74, a driving gear 71, a driven gear 72, and a driving seat 73. Among them, the mounting bracket 74 is arranged at the end close to the concave cavity 11 and is longitudinally extended and clamped and fixed between the top wall and the bottom wall of the housing. In this way, the mounting bracket 74 horizontally divides the inner cavity of the housing. At the same time, the top wall of the concave cavity 11 abuts against the top wall of the housing, effectively restricting the motor cavity B, thereby greatly improving the heat dissipation effect of the external air on the motor 60. The motor 60 and the driving gear 71 are respectively arranged on both sides of the mounting bracket 74. The output shaft of the motor 60 passes through the mounting bracket 74, and the driving gear 71 is fixedly sleeved on the output shaft of the motor 60. The driving seat 73 and the driven gear 72 are respectively arranged on both sides of the mounting bracket 74. Among them, the driven gear 72 is directly meshed with the driving gear 71 or connected by a belt drive. The driving seat 73 is rotatably mounted on the end wall of the concave cavity 11 and the driving seat 73 has a linkage shaft passing through the mounting bracket 74 and linked with the driven gear 72. A receiving groove is provided at the corresponding position of the mounting bracket 74, and a bearing 75 is fixedly embedded in the receiving groove. The linkage shaft of the driving seat 73 is fixedly sleeved on the inner ring of the bearing 75, so that the motor 60 can drive the driving seat 73 to rotate more smoothly and smoothly.

[0033] In this embodiment, as Figure 2 and Figure 5 shown, the housing includes a bottom shell 10 and a top cover 20 that are joined together, and a sealing member 30 and a joint 40 that are clamped and fixed between the bottom shell 10 and the top cover 20. Among them, a concave cavity 11 with one end open is formed by the bottom wall of the bottom shell 10 bulging upward corresponding to its longitudinal front end. A lower mating rib 12 extending vertically upward to close the lower opening of the concave cavity 11 is provided at the opening of the bottom shell 10 corresponding to the end of the concave cavity 11. A lower arc opening 121 is provided on the lower mating rib 12. An upper mating rib 22 extending vertically downward is correspondingly provided on the top cover 20. An upper arc opening 221 is provided on the upper mating rib 22. The upper mating rib 22 and the lower mating rib 12 are opposed to each other to close the opening of the concave cavity 11 and divide the inner cavity of the housing, so that the motor cavity B can be restricted. At the same time, the upper arc opening 221 and the lower arc opening 121 cooperate to form a receiving opening for accommodating the driving seat 73.

[0034] In the above solution, a suction port is provided in the middle of the rear wall of the concave cavity 11 of the bottom shell 10. The sealing member 30 is arranged on the bottom shell 10 and its front part is joined to the suction port of the concave cavity 11. The rear part of the sealing member 30 has a connecting ring. The joint 40 is arranged on the bottom shell 10 and its inlet is joined to the connecting ring of the sealing member 30. In this way, a flow guiding channel A is formed by the cooperation of the suction port, the sealing member 30, and the joint 40. Preferably, the top walls of the sealing member 30 and the joint 40 abut against the top wall of the top cover 20, so that the motor cavity B can be further restricted.

[0035] Compared with the prior art, the utility model has a simple and reasonable structure. By utilizing the suction force generated when the dust suction device works, external air is forced to enter the motor cavity through the heat dissipation holes to dissipate heat from the motor inside. At the same time, by abutting the motor against the metal filter plate, not only the heat dissipation area of the motor is effectively increased, but also the filter holes on the metal filter plate are separated at the abutting position, enabling the external air to flow through the lower and upper parts of the motor simultaneously, thereby greatly improving the heat dissipation effect of the motor and ensuring the stability of the floor brush work.

[0036] The above-disclosed are only the embodiments of the utility model. However, the utility model is not limited thereto, and any changes that can be conceived by those skilled in the art should fall within the protection scope of the utility model.

Claims

1. A floor brush of a vacuum cleaner, comprising a housing, a roller brush, a motor and a transmission assembly, wherein the housing is provided with a transversely extending concave cavity at the longitudinal front end corresponding to the bottom thereof, and the housing is provided with a guide channel communicating with the concave cavity at the rear structure corresponding to the concave cavity, the roller brush is rotatably installed in the concave cavity, the motor is installed in the housing and the transmission assembly is transmission-connected between the motor and the roller brush; It is characterized in that A motor cavity is arranged in the rear structure of the housing corresponding to one lateral side of the concave cavity, and a communication port is arranged between the motor cavity and the guide channel; The motor is installed in the motor cavity, and a plurality of heat dissipation holes are arranged on the rear wall of the motor cavity corresponding to the motor. A metal filter plate is fitted at the heat dissipation holes on the rear inner wall of the motor cavity corresponding to the motor, and the metal filter plate is against the motor. The contact between the motor and the metal filter plate separates the filter holes on the metal filter plate into upper filter holes and lower filter holes which are respectively connected to the spaces above and below the contact.

2. A floor brush for a vacuum cleaner according to claim 1, characterized in that: The wall surface of the motor cavity rear wall corresponding to the heat dissipation hole is an inclined structure, the metal filter plate is fitted on the inclined surface of the motor cavity rear wall, and the corner of the upper end of the motor is against the metal filter plate.

3. The floor brush of a vacuum cleaner according to claim 1, characterized in that: A plurality of support ribs for supporting the motor are arranged at intervals on the bottom wall and the top wall of the motor cavity, and adjacent support ribs cooperate to form guide grooves.

4. The floor brush of a vacuum cleaner according to claim 3, characterized in that: The supporting ribs are provided with through holes.

5. The floor brush of a vacuum cleaner according to claim 1, characterized in that: The transmission assembly includes a driving gear, a driven gear transmission-connected to the driving gear, and a driving seat linkage-connected to the driven gear. The driving gear is fixedly sleeved on the output shaft of the motor, and the driving seat is rotatably arranged on the end wall of the concave cavity.

6. The floor brush of a vacuum cleaner according to claim 5, characterized in that: The transmission assembly further includes a mounting frame, the mounting frame being longitudinally extended and arranged between the bottom wall and the top wall of the housing to laterally divide the inner cavity of the housing; The motor and the driving gear are arranged on both sides of the mounting frame accordingly, the driving seat and the driven gear are arranged on both sides of the mounting frame accordingly, the mounting frame is provided with a receiving groove corresponding to the driving seat, and a bearing is fixedly embedded in the receiving groove, the driving seat has a linkage shaft connected to the driven gear, and the linkage shaft is fixedly connected to the inner ring of the bearing.

7. The floor brush of a vacuum cleaner according to claim 5, characterized in that: The housing comprises a bottom shell and a top cover which are matched, wherein the bottom shell has a bottom wall corresponding to its longitudinal front end which bulges upward to form a concave cavity with one end open, and the bottom shell is provided with a lower matching rib extending vertically upward to close the lower opening of the concave cavity at the opening corresponding to the concave cavity, and the lower matching rib is provided with a lower arc opening; The top cover is provided with an upper matching rib extending vertically downward, and an upper arc opening is provided on the upper matching rib. The upper matching rib and the lower matching rib are matched to close the concave cavity opening, and the upper arc opening and the lower arc opening cooperate to form an accommodating opening for accommodating the drive seat.

8. The floor brush of a vacuum cleaner according to claim 7, characterized in that: The housing further comprises a cover member and a joint fixedly clamped between the bottom shell and the top cover, and a suction port is arranged on the rear wall of the concave cavity; The cover member is arranged on the bottom shell and its front part is engaged with the suction port of the concave cavity, and the rear part of the cover member has a connecting ring; The joint is arranged on the bottom shell and its inlet is engaged with the connecting ring of the sealing cover.

9. The floor brush of a vacuum cleaner according to claim 1, characterized in that: The top wall of the concave cavity abuts against the top wall of the shell.

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