Brush roll of car washer
By adopting a design in the car wash machine's brush roller that directly connects the brush shaft and the brush, combined with positioning protrusions and foaming material, the problem of brush blade detachment is solved, the structure is simplified and the connection reliability is improved, and the cleaning effect is enhanced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-03
- Publication Date
- 2026-04-07
AI Technical Summary
The existing automatic car wash machines have complex brush roller structures, and the brush blades are prone to falling off and the connections are not secure.
The brush shaft is directly connected to the brush. The design uses positioning protrusions and positioning grooves, combined with a brush disc and brush blade made of foam material. The brush is fixed with foam blocks and fixing sleeves, which simplifies the structure and enhances the reliability of the connection.
The brush roller structure is simplified, the brush is easy to replace, the brush blades are not easy to fall off, the connection is reliable, and it can effectively fit the car surface to ensure the cleaning effect.
Smart Images

Figure CN224090177U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a car wash machine, and more particularly to a car wash machine brush roller. Background Technology
[0002] Automatic car wash machines clean cars by brushing the sides, roof, and rear of the car with brush rollers. For example, the automatic car wash machine brush disclosed in Chinese patent CN216734208U has a relatively complex structure of rotating drum and clamping rod, and the brush blades are fixed by the clamping rod, which makes the connection of the brush blades not firm and easy to fall off. Utility Model Content
[0003] To address the issues of complex structure and easy detachment of brushes mentioned above, this utility model provides a car wash machine brush roller, the specific technical solution of which is as follows:
[0004] A car wash machine brush roller includes: a brush shaft with a plurality of positioning protrusions axially arranged on its outer surface; a brush, including a brush disc made of foam material and brush blades arranged in a ring array on the brush disc, the brush disc being sleeved on the brush shaft and having positioning grooves inserted into the positioning protrusions; a first foaming block being sleeved on the brush shaft and having a first groove inserted into the positioning protrusions, the first foaming block also being located on both sides of the brush disc; and a fixing sleeve being disposed at both ends of the brush shaft and abutting against the first foaming block to fix the brush on the brush shaft.
[0005] Preferably, one end of the brush blade is provided with a fixing slot for insertion into a brush disc, and the other end of the brush blade is provided with at least two long dividing grooves so that the end of the brush blade forms multiple brush strips.
[0006] Furthermore, the brush bar has at least one short dividing groove, the length of which is less than the length of the long dividing groove.
[0007] Furthermore, the ends of the brush strip are rounded.
[0008] Preferably, the brush shaft is a hollow shaft.
[0009] Preferably, the positioning protrusion is provided with a connecting through hole.
[0010] Preferably, it further includes: an adjusting plate, the adjusting plate being disposed between the first foaming blocks.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] The present invention provides a car wash machine brush roller that is directly connected to the brush via a brush shaft, which greatly simplifies the overall structure, makes brush replacement convenient, and ensures that the brush blades are not easily detached and the connection is reliable. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this application;
[0014] Figure 2 This is a front view of this application;
[0015] Figure 3 This is a cross-sectional view of this application;
[0016] Figure 4 This is a schematic diagram of the brush shaft structure;
[0017] Figure 5 This is the front view of the brush axis;
[0018] Figure 6 This is a schematic diagram of the brush structure;
[0019] Figure 7 This is a front view of a brush;
[0020] Figure 8 This is a schematic diagram of the brush plate structure;
[0021] Figure 9 This is a schematic diagram of the brush disk structure;
[0022] Figure 10 This is a schematic diagram of the structure of the first foamed block. Detailed Implementation
[0023] The present invention will now be further described with reference to the accompanying drawings.
[0024] like Figures 1 to 10As shown, a car wash machine brush roller includes a brush shaft 5, a brush, a first foaming block 3, and a fixing sleeve. The outer surface of the brush shaft 5 has a positioning protrusion 51, which protrudes above the outer surface of the brush shaft 5 and is arranged axially. At least one positioning protrusion 51 is provided; multiple protrusions are arranged in a circular array, up to four protrusions 51. To reduce the weight and cost of the brush shaft 5, it is made of aluminum profile. The brush disc 2 and brush blades 1 are also included. The brush blades 1 are fixed to the brush disc 2 and arranged in a circular array. Both the brush blades 1 and the brush disc 2 are made of foam material. The brush disc has a connecting hole and a positioning groove 22. The positioning groove 22 is located on the inner wall of the connecting hole and corresponds one-to-one with the positioning protrusions 51. The connecting hole is inserted into the brush shaft 5, and the positioning groove 22 is inserted into the positioning protrusion 51, allowing the brush to rotate with the brush shaft 5. The first foaming block 3 has a first insertion hole 31 at its center, and a first groove 32 on the first insertion hole 31. The first groove 32 corresponds one-to-one with the positioning protrusion 51. The first insertion hole 31 is inserted into the brush shaft 5, and the first groove 32 is inserted into the positioning protrusion 51, so that the first foaming block 3 rotates with the brush shaft 5. The first foaming block 3 is made of foam material, which can reduce weight and lower cost. The fixing sleeve is inserted into both ends of the brush shaft 5 and pressed onto the brush shaft 5 by screws. The fixing sleeve abuts against the first foaming block 3 to fix the brush on the brush shaft 5. The fixing sleeve fixes the brush from both ends of the brush shaft 5. The number of brushes is set as needed and is stacked sequentially along the length of the brush shaft 5. Two first foaming blocks 3 are set between adjacent brushes. The foaming blocks make a cleaning gap between the brush blades 1 to facilitate water flow.
[0025] The structure of the brush shaft 5 is simpler than that of the rotating drum, and the brush blade 1 is fixedly connected to the brush plate 2, making it less likely to fall off. The overall structure is also simpler and easier to improve.
[0026] Once the brush is in mode 1, simply remove the retaining sleeve and replace it with the appropriate brush. Replacement is convenient and quick.
[0027] One end of the brush blade 1 is provided with a fixing slot 11 for insertion into the brush disc 2, and the fixing slot 11 causes the end of the brush blade 1 to form two fixing pieces 16. The other end of the brush blade 1 is provided with at least two long dividing grooves 12 so that the end of the brush blade 1 forms multiple brush strips 10.
[0028] The fixing slot 11 is easy to insert into the brush plate 2, which facilitates the fixing of the brush 1. At the same time, it can make the brush 1 form a U-shaped structure to increase its strength. The long dividing groove 12 at the end makes the end of the brush 1 form multiple independent brush strips 10. The brush strips 10 increase the flexibility and can always stick to the surface of the car. They can fit with the curved surface of the car, thereby ensuring reliable contact and ensuring cleaning.
[0029] The brush blades 1 are arranged in a ring and fixed to the edge of the brush disk 2. A fixing slot 11 is inserted into the brush disk 2, and fixing plates 16 on both sides of the fixing slot 11 are symmetrically fixed to the brush disk 2, so that the end of the brush blade 1 connected to the brush disk 2 forms a U-shape. The end of the brush blade 1 with the brush strip 10 gradually unfolds to form a large arc 14, increasing the contact area with the brush. The U-shaped reinforcement of the brush blade 1 makes the brush strip 10 less prone to deformation during brushing. The long dividing groove 12 and the short dividing groove 13 allow the brush strip 10 to deform freely, ensuring both strength during brushing and flexibility at the end, effectively guaranteeing cleaning effectiveness. The brush strip 10 and the brush blade 1 can be fixed together by sewing. Two fixing plates 16 are located on both sides of the brush disk 2, allowing the brush blade 1 to form a U-shaped structure, improving its strength.
[0030] To further increase the adhesion between the brush strip 10 and the car surface, the brush strip 10 has at least one short dividing groove 13. The length of the short dividing groove 13 is less than the length of the long dividing groove 12. The short dividing groove 13 allows the end of the brush strip 10 to better adhere to the car surface when it comes into contact with the curved surface, thereby ensuring reliable cleaning contact and ensuring cleaning effectiveness.
[0031] To further protect the car's surface and prevent damage, the end of the brush strip 10 is rounded 14 to reduce sharp corners and increase the contact area with the car.
[0032] The positioning protrusion 51 of the brush shaft 5 is provided with a connecting through hole 52. The connecting through hole 52 can reduce the weight of the brush shaft 5 and facilitate the connection of both ends of the brush shaft 5 to the car wash machine.
[0033] The brush shaft 5 is a hollow shaft, which can reduce costs and weight.
[0034] To facilitate adjustment of the spacing between the brush blades 1, an adjusting plate 4 is also included, which is located between the first foaming blocks 3. The spacing between adjacent brush blades 1 can be adjusted using the adjusting plate 4 according to the cleaning effect.
[0035] A car wash machine brush roller has a simple structure, the brush blades 1 are not easy to fall off, the brushes are easy to replace, and the ends of the brush strips 10 have a large contact area with the car, which can ensure the cleaning effect. At the same time, multiple independent brush strips 10 can fit the curved surface of the car to maintain an effective contact area with the car. Furthermore, by folding and fixing them to the brush disc 2, the brush blades 1 have a certain degree of hardness, avoiding the problem of poor cleaning effect due to excessive softness.
[0036] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these embodiments will all fall within the protection scope of the claims of this utility model.
Claims
1. A car wash machine brush roller, characterized in that, include: The brush shaft (5) has several positioning protrusions (51) along the axial direction on its outer circular surface. The brush includes a brush disc (2) made of foamed material and brush blades (1) arranged in a ring on the brush disc (2). The brush disc (2) is sleeved on the brush shaft (5) and has a positioning groove (22) inserted into the positioning protrusion (51). The first foaming block (3) is sleeved on the brush shaft (5) and has a first groove (32) inserted into the positioning protrusion (51). The first foaming block (3) is also located on one or both sides of the brush disk (2). as well as A fixing sleeve is provided at both ends of the brush shaft (5) and abuts against the first foaming block (3) so that the brush is fixed on the brush shaft (5).
2. The car wash machine brush roller according to claim 1, characterized in that, One end of the brush blade (1) is provided with a fixed slot (11) for insertion into the brush disc (2), and the other end of the brush blade (1) is provided with at least two long dividing grooves (12) so that the end of the brush blade (1) forms multiple brush strips (10).
3. A car wash machine brush roller according to claim 2, characterized in that, The brush bar (10) has at least one short dividing groove (13), the length of which is less than the length of the long dividing groove (12).
4. A car wash machine brush roller according to claim 2, characterized in that, The end of the brush bar (10) is arc-shaped (14).
5. A car wash machine brush roller according to claim 1, characterized in that, The brush shaft (5) is a hollow shaft.
6. A car wash machine brush roller according to claim 1, characterized in that, The positioning protrusion (51) is provided with a connecting through hole (52).
7. A car wash machine brush roller according to claim 1, characterized in that, Also includes: Adjustment piece (4), the adjustment piece (4) is disposed between the first foaming blocks (3).
Citation Information
Patent Citations
Hairbrush of automatic car washer
CN216734208U