Cantilever type cleaning assembly of sweeper

Abstract

The cantilever type cleaning assembly of the sweeper comprises a frame, a containing cavity is formed in the frame, and a dust suction opening communicated with the containing cavity is formed in the middle of the frame. Two rolling brush assemblies of the same structure are arranged on the two sides of the dust collection opening in a spaced mode and arranged in the containing cavity, and one ends of the rolling brush assemblies are connected with the end of the frame. The rolling brush assembly comprises a fixing support, a needle bearing is embedded in the fixing support and connected with a rotating shaft, the rotating shaft is fixedly provided with a rolling shaft, a plurality of rolling brush strips are spirally arranged on the periphery of the rolling shaft in the extending direction of the rolling shaft, one end of each rolling brush strip extends out of the end of the rolling shaft, and a needle bearing is embedded in the fixing support and connected with the rolling shaft. The needle bearing has the advantages of small radial size, small shaking and the like, and the radial length of the needle bearing is longer than that of a common bearing, so that the needle bearing and the rotating shaft can have a larger contact area, and the operation is more stable; in addition, one end of each rolling brush strip extends out of the end of the corresponding rolling shaft, so that the gap between the two rolling shafts cannot be reduced, the sweeping range can be enlarged, and the situation that garbage and hair are sucked into a dust box of the sweeper is not affected.

Description

Technical Field

[0001] The utility model belongs to the technical field of cleaning components, in particular to a cantilever cleaning component for a sweeping machine. Background Art

[0002] The cleaning device may specifically be a vacuum cleaner, a sweeping robot, a mopping robot, etc., which is mainly used for automatically cleaning the surface to be cleaned, and is usually used in scenarios such as household indoor cleaning and large-scale venue cleaning; this type of cleaning device works in the same way, and basically uses a rotating brush to separate dust or garbage from the bottom surface, and then sucks and collects it to achieve the purpose of cleaning; in order to avoid hair being entangled in the brush, a cleaning component with a guiding function has appeared on the market, such as the public technical document "CN117084603A, roller brush, roller brush device and cleaning device". During use, the roller brush and the transmission port are used in combination to guide hair, dust and other garbage along the roller brush toward the transmission port to avoid accumulation. For details, please refer to the relevant description of paragraphs 0098 to 0103 of its specification;

[0003] The above solution can achieve a good anti-entanglement effect, but the use of a single cantilever will cause the connection position between the cantilever and the shell to bear greater pressure, affecting the transmission of power. Secondly, the single cantilever method has a too long guiding distance, and hair entanglement will occur more or less. Utility Model Content

[0004] The purpose of the utility model is to provide a cantilever cleaning assembly for a sweeping machine to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A cantilever cleaning assembly for a sweeping machine comprises a frame, a receiving cavity is provided in the frame, a dust suction port connected to the receiving cavity is provided in the middle of the frame; two roller brush assemblies with the same structure are provided at intervals on both sides of the dust suction port, the two roller brush assemblies are placed in the receiving cavity, and one end of the roller brush assemblies is connected to the end of the frame;

[0007] The roller brush assembly includes a fixed bracket, a needle bearing is embedded in the fixed bracket, the needle bearing is connected to the rotating shaft, a roller is fixed to the rotating shaft, and a plurality of roller brush strips are spirally arranged on the outer circumference of the roller along the extension direction of the roller, and one end of the roller brush strip extends out of the end of the roller.

[0008] According to a further technical solution, a dust suction port is horizontally extended from one end of the roller.

[0009] According to a further technical solution, the roller includes a fixed shaft, a circular blocking block is provided at one end of the fixed shaft, a plurality of arc-shaped grooves adapted to the rotation direction of the roller brush strip are provided on one side of the blocking block, and one end of the roller brush strip is placed in the arc-shaped groove.

[0010] According to a further technical solution, a circular step is provided on a side of the shielding block facing away from the fixed axis, and a loop is sleeved on the step.

[0011] According to a further technical solution, there are four roller brush strips distributed at 90°, and each roller brush strip is spirally bent at 90°;

[0012] Located between the two rolling brush strips, the fixed shaft is provided with a spiral guide groove bent at 90 degrees.

[0013] A further technical solution also includes a card cover used in conjunction with the frame, wherein three grooves 1 of different sizes are respectively provided at both ends of the card cover, and the frame is provided with a plurality of grooves 2 opposite to the grooves 1, which respectively correspond to the shielding block, the loop and the fixed bracket, and the grooves 1 and 2 are both provided with convex strips for limiting the fixed bracket.

[0014] Beneficial effects of the utility model:

[0015] The utility model has a needle roller bearing embedded in the fixed bracket. The needle roller bearing has the advantages of small radial size and small shaking. Moreover, the radial length of the needle roller bearing is longer than that of ordinary bearings, so that the needle roller bearing and the rotating shaft can have a larger contact area, making the operation more stable.

[0016] In addition, one end of the roller brush bar extends out of the end of the roller, so that the gap between the two rollers will not become smaller, which can not only expand the cleaning range, but also does not affect the suction of garbage and hair into the dust box of the sweeper.

[0017] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 : A three-dimensional structural diagram of the utility model.

[0019] Figure 2 : Bottom structure diagram of the utility model.

[0020] Figure 3 : Overall disassembly of the utility model Figure 1 .

[0021] Figure 4 : Overall disassembly of the utility model Figure 2 .

[0022] Figure 5: Disassembly diagram of the roller brush assembly of the present utility model.

[0023] Figure markings: 11-frame, 12-accommodating chamber, 13-dust suction port, 14-card cover, 15-groove one, 16-groove two, 17-convex strip, 2-roller brush assembly, 21-fixed bracket, 22-needle bearing, 23-rotating shaft, 24-roller, 241-fixed shaft, 242-circular blocking block, 243-circular step, 25-roller brush strip, 26-arc groove, 27-loop, 28-spiral guide groove, 31-motor bracket, 32-double-headed output motor, 33-coupling, 34-output shaft, 35-gear box, 36-protective cover. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0025] Please refer to Figure 1-5 ;

[0026] The cleaning component described in the utility model is used in a sweeping machine, aiming to reduce hair entanglement, facilitate people's cleaning, and improve the cleaning effect; it specifically comprises a frame 11, a receiving chamber 12 is arranged in the frame 11, and a dust suction port 13 connected with the receiving chamber 12 is arranged in the middle of the frame 11; the dust suction port 13 is used to communicate with a negative pressure generator of the cleaning device, and finally a negative pressure is formed in the receiving chamber 12, and two roller brush assemblies 2 with the same structure are arranged at intervals on both sides of the dust suction port 13, and the two roller brush assemblies 2 are placed in the receiving chamber 12. In this embodiment, the receiving chamber 12 is also in the shape of a long strip, and the two roller brush assemblies 2 are arranged in a straight line in the receiving chamber 12, that is, the ends of the two roller brush assemblies 2 that are away from each other are respectively connected to the two ends of the receiving chamber 12, The other end that is close to it is relatively arranged, and a spacing space is formed at a distance from the opposite end, and the spacing space forms an airway corresponding to the dust suction port 13; it should be noted that the two roller brush assemblies 2 in this embodiment can be powered or not, but when they are not powered, the cleaning device needs to provide corresponding power to make them move; the utility model adopts a solution of two roller brush assemblies 2 to replace one roller brush, so as to reduce the pressure on the rotating shaft 23 in the roller brush assembly 2, and both roller brush assemblies 2 can move, and the same roller brush cleaning effect can be achieved. In addition, in comparison, dust and hair move from both ends to the middle, which reduces the transportation distance of dust and hair, and at the same time reduces the occurrence of hair entanglement and dust accumulation.

[0027] One of the embodiments of the roller brush assembly 2 of the utility model specifically includes a fixed bracket 21. In this embodiment, the connection relationship between the fixed bracket 21 and the frame 11 is not limited, and the connection can be detachable or fixed with the assistance of external components. In the prior art, ordinary small-sized bearings are mostly used as components to reduce friction. In this embodiment, a needle bearing 22 is embedded in the fixed bracket 21. The needle bearing 22 has the advantages of small radial size and small shaking. Moreover, the radial length of the needle bearing 22 is longer than that of an ordinary bearing, so that the needle bearing 22 and the rotating shaft 23 can have a larger contact area, making the operation more stable. The rotating shaft 23 is fixed with a roller 24. Of course, the rotating shaft 23 and the roller 24 can be integrally formed or assembled from two separate components. Along the extension direction of the roller 24, a plurality of roller brush strips 25 are spirally arranged on the outer circumference thereof; in order to prevent the dust gathered from both ends to the position of the suction port 13 from being cross-entangled or piled up together, after research, it is found that the relative distance between the two rollers 24 should be greater than 3 cm. Of course, the interval distance should also take into account the overall size of the cleaning component. If some cleaning components are larger, then this distance should also be appropriately lengthened; when the dust on the bottom surface passed by the cleaning component is exactly located in the gap between the two rollers 24, it will not be able to be cleaned. However, in the present embodiment, when the length of the roller 24 remains unchanged, one end of the roller brush strip 25 extends out of the end of the roller 24; in this way, the gap between the two rollers 24 will not become smaller, which can not only expand the cleaning range, but also does not affect the suction of garbage and hair into the dust box of the sweeper.

[0028] In the embodiment of the utility model, one end of the roller 24 horizontally extends out of the dust suction port 13. Under the condition that the distance between the two rollers 24 remains unchanged, such a design essentially expands the area of ​​the dust suction port 13 to achieve a larger suction range and provide a better dust suction effect.

[0029] In the embodiment of the utility model, the roller 24 includes a fixed shaft 241, a circular blocking block 242 is provided at one end of the fixed shaft 241, and a plurality of arc-shaped grooves 26 adapted to the rotation direction of the roller brush strip 25 are provided on one side of the blocking block. One end of the roller brush strip 25 is placed in the arc-shaped groove 26. The arc-shaped groove 26 provides a deformation space for the roller brush strip 25 during operation to prevent the shear force or friction force generated during the operation from affecting the rotation, and at the same time, it can prevent hair from being entangled around the end of the fixed shaft 241.

[0030] In another embodiment, when the fixed bracket 21 needs to be fixed in conjunction with an external component, the fixed bracket 21 and the shielding block should be covered to avoid the accumulation of hair and dust. To further prevent the entry of dust, a circular step 243 is provided on the side of the shielding block away from the fixed axis 241, and a loop 27 is provided on the step. The loop 27 rotates with the rotation to block dust.

[0031] Preferably, the external component mentioned above refers to the card cover 14 used in conjunction with the frame 11. The card cover 14 can be fixed to the frame 11 by snapping. Three grooves 15 of different sizes are respectively provided at both ends of the card cover 14. The frame 11 is provided with a plurality of grooves 16 opposite to the groove 15, which correspond to the shielding block, the loop 27 and the fixed bracket 21 respectively. The fixed bracket 21 needs to be fixed, so one of the grooves 15 and the groove 16 is provided with a convex strip 1 for limiting the fixed bracket 21. 7. The fixing bracket 21 is clamped and fixed by the upper and lower convex strips 17. Since the shielding block and the circular step 243 need to rotate, the shapes of the other two grooves 15 and the groove 2 16 are adapted to the shielding block and the circular step 243, and the width is slightly larger than them to avoid friction. A loop 27 is provided at the circular step 243, and the loop 27 rubs against the groove 15 and the groove 2 16 to form a barrier to prevent dust from entering. Of course, the loop 27 is relatively soft and the friction generated is relatively small, which will not affect the rotation.

[0032] In order to optimize the cleaning effect, the setting method of the roller brush strip 25 is explained below; in this embodiment, there are four roller brush strips 25, which are distributed at 90°, and each roller brush strip 25 is spirally bent at 90°; located between two roller brush strips 25, the fixed shaft 241 is provided with a spiral guide groove 28 bent at 90°, and four roller brush strips 25 rotated at 90° are used to ensure that the spiral guide groove 28 is large enough and can be rotated 90°. During operation, it can ensure that parts of two adjacent roller brush strips 25 can contact the bottom surface to form an airway, making it easier to generate suction to absorb dust.

[0033] In the embodiment of the utility model, a motor bracket 31 is provided on the side of the frame 11 away from the card cover 14, and a double-headed output motor 32 is installed on the motor bracket 31. The two output ends of the double-headed output motor 32 are respectively connected to the output shaft 34 through a coupling 33, and the output shaft 34 is connected to a gear box 35. The gear box 35 is installed at both ends of the frame 11 and is respectively connected to the rotating shaft 23. The double-headed output motor 32 drives the left and right gear boxes 35 to realize the rotation of the double roller brush shaft. Compared with the existing single drive motor, one motor can be reduced, saving costs.

[0034] In addition, a protective cover 36 is provided on the outer periphery of the output shaft 34. One end of the protective cover 36 is fixedly connected to the motor bracket 31, and the other end is fixedly connected to the frame 11. The provision of the protective cover 36 can prevent dust from adhering to the rotating shaft 23 and affecting the transmission effect.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims

1. A cantilever cleaning assembly for a sweeping machine, comprising a frame (11), wherein a receiving chamber (12) is provided in the frame (11), and a dust suction port (13) communicating with the receiving chamber (12) is provided in the middle of the frame (11); two roller brush assemblies (2) of the same structure are provided at intervals on both sides of the dust suction port (13), the two roller brush assemblies (2) are placed in the receiving chamber (12), and one end of the two roller brush assemblies (2) is connected to the end of the frame (11), characterized in that: The roller brush assembly (2) comprises a fixed bracket (21), a needle bearing (22) is embedded in the fixed bracket (21), the needle bearing (22) is connected to a rotating shaft (23), a roller (24) is fixed to the rotating shaft (23), and a plurality of roller brush strips (25) are spirally arranged on the outer circumference of the roller (24) along the extension direction of the roller (24), and one end of the roller brush strip (25) extends out of the end of the roller (24).

2. A cantilever cleaning assembly for a sweeping machine according to claim 1, characterized in that: One end of the roller (24) horizontally extends out of a dust suction port (13).

3. The cantilever cleaning assembly of a sweeping machine according to claim 1, characterized in that: The roller (24) comprises a fixed shaft (241), one end of the fixed shaft (241) is provided with a circular shielding block (242), one side of the shielding block is provided with a plurality of arc-shaped slots (26) adapted to the rotation direction of the roller brush strip (25), and one end of the roller brush strip (25) is placed in the arc-shaped slot (26).

4. The cantilever cleaning assembly of a sweeping machine according to claim 3, characterized in that: A circular step (243) is provided on the side of the shielding block facing away from the fixed shaft (241), and a loop (27) is sleeved on the step.

5. The cantilever cleaning assembly of a sweeping machine according to claim 4, characterized in that: There are four roller brush strips (25) distributed at 90°, and each roller brush strip (25) is spirally bent at 90°; Located between the two rolling brush strips (25), the fixed shaft (241) is provided with a spiral guide groove (28) bent at 90 degrees.

6. A cantilever cleaning assembly for a sweeping machine according to claim 5, characterized in that: The invention also comprises a card cover (14) for use with the frame (11), wherein three grooves (15) of different sizes are respectively provided at two ends of the card cover (14), and a plurality of grooves (16) opposite to the grooves (15) are provided on the frame (11), respectively corresponding to the shielding block, the loop (27) and the fixed bracket (21), and convex strips (17) for limiting the fixed bracket (21) are provided in the grooves (15) and the grooves (16).

7. A cantilever cleaning assembly for a sweeping machine according to claim 6, characterized in that: A motor bracket (31) is provided on the side of the frame (11) facing away from the card cover (14), and a double-head output motor (32) is installed on the motor bracket (31). The two output ends of the double-head output motor (32) are respectively connected to an output shaft (34) through a coupling (33), and the output shaft (34) is connected to a gear box (35). The gear box (35) is installed at both ends of the frame (11) and is respectively connected to the rotating shaft (23) in a transmission manner.

8. The cantilever cleaning assembly of a sweeping machine according to claim 7, characterized in that: A protective cover (36) is sleeved on the outer periphery of the output shaft (34); one end of the protective cover (36) is fixedly connected to the motor bracket (31), and the other end of the protective cover (36) is fixedly connected to the frame (11).

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