Cleaning brush supporting and sealing device

Abstract

The utility model discloses a cleaning brush supporting and sealing device, a cleaning brush is provided with a supporting cylinder and comprises a sealing body, the radial inner side of the upper end face of the sealing body is provided with a sealing lip which extends inwards and inclines obliquely upwards, the radial outer side of the upper end face of the sealing body is provided with an assembling lip which extends outwards and inclines obliquely upwards, and the assembling lip is provided with a sealing ring. The outer side face of the assembly lip is an inclined assembly face matched with the supporting cylinder, and at least part of the peripheral wall of the sealing body is provided with a close-fitting face matched with the supporting cylinder. The supporting structure not only can play a good supporting effect, but also has sealing capability.

Description

Technical Field

[0001] The utility model relates to a cleaning brush supporting sealing device, which is applied to cleaning equipment, such as a sweeping machine, a floor scrubber and a glass cleaning robot. Background Art

[0002] At present, in the cleaning equipment, the cleaning equipment has a cleaning brush, which realizes the cleaning function by driving the cleaning brush head to rotate, and the cleaning brush head can be a roller brush or a disc brush, etc. The Chinese patent with the announcement number CN219632034U discloses a disc brush device for cleaning flat glass. In the patent, the outer part of the rotating shaft is connected to the sleeve through a bearing, and a sealing component is provided between the rotating shaft and the sleeve, and the disc brush seat is connected to the rotating shaft. This method only supports the rotating shaft through the bearing. After long-term use, the disc brush may tilt and the support is unstable. Summary of the invention

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a cleaning brush supporting and sealing device, which can not only play a good supporting effect but also has sealing ability.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a cleaning brush support sealing device, the cleaning brush has a support cylinder, including:

[0005] A sealing body, wherein a sealing lip extending inwardly and tilted obliquely upward is provided on the radial inner side of the upper end surface of the sealing body, an assembly lip extending outwardly and tilted obliquely upward is provided on the radial outer side of the upper end surface of the sealing body, the outer side surface of the assembly lip is an assembly surface that cooperates with and is inclined to the support tube, and at least a portion of the outer peripheral wall of the sealing body is provided with a tight-fitting surface that cooperates with the support tube.

[0006] Furthermore, the inclination angle α of the assembly surface is 25° to 70°.

[0007] Furthermore, in order to improve its supporting capacity, the tight-fitting surface is a corrugated structure.

[0008] Furthermore, the lip thickness h of the assembly lip is 1 to 3 mm.

[0009] Furthermore, the sealing lip has a front lip angle A and a rear lip angle B, and the size parameters of the sealing lip are as follows:

[0010] The front lip angle A is greater than the rear lip angle B; and / or the front lip angle A is 25° to 80°; and / or the rear lip angle B is 15° to 60°; and / or the angle C between the upper lip surface of the sealing lip and the axial direction is 30° to 75°; and / or the shaft interference of the sealing lip is 0.05 to 0.3 mm; and / or the lip tip diameter of the sealing lip is 10 to 60 mm.

[0011] Furthermore, a supporting frame is provided in the sealing body.

[0012] Furthermore, the cross-section of the support frame in the radial direction is an L-shaped structure.

[0013] Furthermore, the sealing body comprises an axially extending portion and a radially extending portion, and the sealing lip and the assembly lip are arranged on inner and outer sides of the radially extending portion.

[0014] Furthermore, the axially extending portion and the radially extending portion form a bearing assembly groove, and a bearing is assembled in the bearing assembly groove.

[0015] Furthermore, a material reduction groove is provided on a portion of the outer peripheral wall of the sealing body.

[0016] After adopting the above technical scheme, an assembly lip is provided on the radial outer side of the upper end face of the sealing body of the cleaning brush support sealing device of the utility model, and an assembly surface is provided on the assembly lip for matching with the support tube, and a tight-fitting surface is provided on the outer peripheral wall of the sealing body. The sealing body matches with the support tube through the assembly surface and the tight-fitting surface, and at the same time, the cleaning brush rotating connecting piece is embraced by the sealing lip, which plays a role in positioning and supporting the cleaning brush rotating connecting piece on the support tube well. The sealing lip can also play a sealing role. At the same time, a bearing is provided between the sealing body and the cleaning brush rotating connecting piece, which can well rotationally support the cleaning brush rotating connecting piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the cleaning brush support sealing device of the utility model;

[0018] Figure 2 It is a cross-sectional view of the cleaning brush support sealing device of the utility model;

[0019] Figure 3 This is a diagram showing the use status of the cleaning brush support sealing device of the utility model. DETAILED DESCRIPTION

[0020] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings.

[0021] like Figures 1 to 3 As shown, a cleaning brush supporting and sealing device, the cleaning brush has a supporting cylinder 10 and a cleaning brush rotating connecting member 20, the cleaning brush supporting and sealing device is installed between the supporting cylinder 10 and the cleaning brush rotating connecting member 20, and the cleaning brush supporting and sealing device includes:

[0022] A sealing body 1, a sealing lip 11 extending inward and inclined upward is provided on the radial inner side of the upper end surface of the sealing body 1, an assembly lip 12 extending outward and inclined upward is provided on the radial outer side of the upper end surface of the sealing body 1, the outer side surface of the assembly lip 12 is an assembly surface 12a that cooperates with the support tube 10 and is inclined, and at least a portion of the outer peripheral wall of the sealing body 1 is provided with a tight-fitting surface 13 that cooperates with the support tube 10.

[0023] In this embodiment, an assembly lip 12 is provided on the radial outer side of the upper end surface of the sealing body 1, and an assembly surface 12a that cooperates with the support tube 10 is provided on the assembly lip 12, and a tight-fitting surface 13 is provided on the outer peripheral wall of the sealing body 1. The assembly surface 12a and the tight-fitting surface 13 cooperate with the support tube 10, and at the same time, the cleaning brush rotating connector 20 is held by the sealing lip 11, which plays a role in well positioning and supporting the cleaning brush rotating connector 20 on the support tube 10, and the sealing lip 11 can also play a sealing role.

[0024] In this embodiment, the cleaning brush may be a roller brush or a disc brush.

[0025] In this embodiment, the sealing body can be made of rubber or plastic, and the rubber includes: fluororubber, nitrile rubber, hydrogenated nitrile rubber, silicone rubber, natural rubber, EPDM rubber and other materials.

[0026] Specifically, Figure 2 As shown, the inclination angle α of the assembly surface 12a is 25° to 70°, preferably 30°. The surface of the support tube 10 that matches the assembly surface 12a is also an inclined surface with the same inclination angle.

[0027] Specifically, Figure 2 As shown, the tight fit surface 13 is a corrugated structure, which is connected with the assembly surface 12a and is located below the assembly surface 12a. The tight fit surface 13 is specifically interference fit with the support tube 10, the interference amount is 0.05-0.2mm, and the fit height dimension is 1-5mm.

[0028] Specifically, the lip thickness h of the fitting lip 12 is 1 to 3 mm.

[0029] Specifically, Figure 2 As shown, the sealing lip 11 has a front lip angle A and a rear lip angle B, and the size parameters of the sealing lip 11 are as follows:

[0030] The front lip angle A is greater than the rear lip angle B; the front lip angle A is 25° to 80°; the rear lip angle B is 15° to 60°; the angle C between the upper lip surface of the sealing lip 11 and the axial direction is 30° to 75°; the shaft interference of the sealing lip 11 is 0.05 to 0.3 mm; the lip tip diameter of the sealing lip 11 is 10 to 60 mm.

[0031] Specifically, Figure 2As shown, a support frame 2 is provided in the sealing body 1; the support frame 2 can be specifically made of SPCC or SUS304.

[0032] Specifically, Figure 2 As shown, the cross section of the support frame 2 in the radial direction is an L-shaped structure.

[0033] Specifically, Figure 2 As shown, the sealing body 1 comprises an axially extending portion 14 and a radially extending portion 15 , and the sealing lip 11 and the assembly lip 12 are arranged on both inner and outer sides of the radially extending portion 15 .

[0034] Specifically, Figure 2 As shown, the axial extension portion 14 and the radial extension portion 15 form a bearing assembly groove, in which the bearing 4 is assembled; specifically, the outer side of the bearing 4 is specifically matched with the support frame 2, and the inner side of the bearing 4 is interference fit with the cleaning brush rotating connector 20; the bearing 4 can specifically be a carbon steel bearing and a stainless steel bearing.

[0035] Specifically, Figure 2 As shown, a portion of the outer peripheral wall of the sealing body 1 is provided with a material reduction groove 16, and the material reduction groove 16 has a radial width of 0.8-1.5 mm and a height of 0.5-5 mm.

[0036] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cleaning brush support sealing device, the cleaning brush having a support tube (10), characterized in that: include: A sealing body (1), wherein a sealing lip (11) extending inward and tilting obliquely upward is provided on the radial inner side of the upper end surface of the sealing body (1), an assembly lip (12) extending outward and tilting obliquely upward is provided on the radial outer side of the upper end surface of the sealing body (1), the outer side surface of the assembly lip (12) is an assembly surface (12a) matching and tilting with the support tube (10), and at least a portion of the outer peripheral wall of the sealing body (1) is provided with a tight-fitting surface (13) matching with the support tube (10).

2. The cleaning brush support sealing device according to claim 1, characterized in that: The inclination angle α of the assembly surface (12a) is 25° to 70°.

3. The cleaning brush support sealing device according to claim 1, characterized in that: The tight-fitting surface (13) is a corrugated structure.

4. The cleaning brush support sealing device according to claim 1, characterized in that: The lip thickness h of the assembly lip (12) is 1 to 3 mm.

5. The cleaning brush support sealing device according to claim 1, characterized in that: The sealing lip (11) has a front lip angle A and a rear lip angle B. The size parameters of the sealing lip (11) are as follows: The front lip angle A is greater than the rear lip angle B; and / or the front lip angle A is 25° to 80°; and / or the rear lip angle B is 15° to 60°; and / or the angle C between the upper lip surface of the sealing lip (11) and the axial direction is 30° to 75°; and / or the shaft interference of the sealing lip (11) is 0.05 to 0.3 mm; and / or the lip tip diameter of the sealing lip (11) is 10 to 60 mm.

6. The cleaning brush support sealing device according to claim 1, characterized in that: A supporting frame (2) is provided inside the sealing body (1).

7. The cleaning brush support sealing device according to claim 6, characterized in that: The cross section of the support frame (2) in the radial direction is an L-shaped structure.

8. The cleaning brush support sealing device according to claim 1, characterized in that: The sealing body (1) comprises an axially extending portion (14) and a radially extending portion (15), and the sealing lip (11) and the assembly lip (12) are arranged on both inner and outer sides of the radially extending portion (15).

9. The cleaning brush support sealing device according to claim 8, characterized in that: The axially extending portion (14) and the radially extending portion (15) form a bearing assembly groove, in which a bearing (4) is assembled.

10. The cleaning brush support sealing device according to claim 1, characterized in that: A material reduction groove (16) is provided on a portion of the outer peripheral wall of the sealing body (1).

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