A floor washing disc rotating shaft assembly

Abstract

The utility model provides a floor-washing disc rotating shaft assembly, belonging to the technical field of floor-washing discs. It comprises a shell with a water inlet hole on the top, a mounting groove connected to the water inlet hole on the bottom of the shell, a rotating shaft for sleeve-connecting a bearing group is arranged in the mounting groove, a through hole communicating with each other up and down is arranged in the middle of the rotating shaft, and the top of the through hole is connected to the water inlet hole, the bottom of the rotating shaft extends out of the lower end of the mounting groove, a retaining ring located below the bearing group is arranged on the side wall of the mounting groove, and the bottom of the rotating shaft extends out of the middle of the retaining ring, a bottom cover is arranged at the bottom of the shell, the bottom of the rotating shaft extends out of the middle of the bottom cover, an annular groove is arranged on the upper end surface of the bottom cover, and an annular sponge ring whose inner ring abuts against the side wall of the rotating shaft is arranged in the annular groove. The utility model has a simple structure, is easy to install, and has a good dust and dirt prevention effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of floor washing discs, in particular to a floor washing disc rotating shaft assembly. Background Art

[0002] The floor scrubber utilizes high-pressure water to pass through the floor scrubber shaft and adopts a rotating spray rod structure to improve the cleaning efficiency of large areas of the ground.

[0003] CN208510948U discloses a floor-washing disc rotating shaft structure. During use, the bottom of the rotating shaft is fixedly connected to a rotating spray rod. During the rotating spray rod's rotation and cleaning process, dust on the ground will be raised. After long-term use, dirt and grime are easily accumulated between the housing where the rotating shaft is located and the rotating shaft, thereby causing blockage and affecting normal use. Summary of the invention

[0004] The utility model aims to provide a floor-washing disc rotating shaft assembly, which uses an end cover arranged at the end of a shell body to ensure the rotation of the rotating shaft while effectively achieving the effect of dust and dirt prevention.

[0005] The purpose of the utility model is achieved in this way:

[0006] A floor washing disc rotating shaft assembly comprises a shell with a water inlet hole on the top, a mounting groove connected to the water inlet hole on the bottom of the shell, a rotating shaft for sleeve-connecting a bearing group is arranged in the mounting groove, a through hole communicating with each other up and down is arranged in the middle of the rotating shaft, and the top of the through hole is connected to the water inlet hole, the bottom of the rotating shaft extends out of the lower end of the mounting groove, a retaining ring located below the bearing group is arranged on the side wall of the mounting groove, and the bottom of the rotating shaft extends out of the middle part of the retaining ring, a bottom cover is arranged at the bottom of the shell, the bottom of the rotating shaft extends out of the middle part of the bottom cover, an annular groove is arranged on the upper end surface of the bottom cover, and an annular sponge ring with an inner ring abutting against the side wall of the rotating shaft is arranged in the annular groove.

[0007] The utility model is further configured that a screw hole is opened at the bottom of the shell, a mounting hole corresponding to the screw hole is opened on the bottom cover, and the bottom cover is fixed at the screw hole by means of bolts penetrating the mounting hole.

[0008] The utility model is further configured that the bearing group includes an angular contact bearing and a deep groove ball bearing, and a washer abutting against the top of the angular contact bearing is embedded in the housing.

[0009] The utility model is further configured such that the upper end surface of the annular sponge ring and the upper end surface of the annular groove are in the same plane.

[0010] Compared with the prior art, the utility model has the following outstanding and beneficial technical effects:

[0011] The floor washing disc rotating shaft assembly provided by the utility model has a bottom cover fixed to the bottom of the shell in addition to the traditional assembly, which can enhance certain protection and the annular sponge ring has a good dustproof effect. The overall structure is simple, and the bottom cover is conveniently installed on the bottom of the shell by bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the bottom cover and the annular sponge ring of the utility model;

[0013] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0014] Reference numerals:

[0015] 1-housing; 10-water inlet hole; 11-installation slot; 12-retaining ring; 13-screw hole; 14-washer;

[0016] 2-bearing set; 20-angular contact bearing; 21-deep groove ball bearing;

[0017] 3-rotating shaft; 30-through hole;

[0018] 4- bottom cover; 40- annular groove; 41- mounting hole;

[0019] 5- Ring-shaped sponge ring. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings. Figure 1 — Figure 2 :

[0021] A floor washing disc rotating shaft assembly includes a shell 1 with a water inlet hole 10 on the top, a mounting groove 11 connected to the water inlet hole 10 on the bottom of the shell 1, a rotating shaft 3 sleeved with a bearing group 2 is arranged in the mounting groove 11, a through hole 30 connected to the upper and lower parts is arranged in the middle of the rotating shaft 3, and the top of the through hole 30 is connected to the water inlet hole 10, the bottom of the rotating shaft 3 extends out of the lower end of the mounting groove 11, a retaining ring 12 located below the bearing group 2 is arranged on the side wall of the mounting groove 11, and the bottom of the rotating shaft 3 extends out of the middle of the retaining ring 12, a bottom cover 4 is arranged at the bottom of the shell 1, the bottom of the rotating shaft 3 extends out of the middle of the bottom cover 4, an annular groove 40 is arranged on the upper end surface of the bottom cover 4, and an annular sponge ring 5 with an inner ring abutting against the side wall of the rotating shaft 3 is arranged in the annular groove 40.

[0022] During the assembly process of the floor-cleaning disc shaft, after the shaft is fixed in the housing 1, the bottom of the housing 1 is finally covered with a retaining ring 12 and locked with a clamp, and then the end cover is covered with the bottom of the housing. After the cover is installed, the connection between the shaft and the retaining ring 12 is protected by an annular sponge ring 5 to prevent dust from entering when cleaning the floor, thereby achieving a good protective effect.

[0023] In addition, an external thread is provided at the bottom of the rotating shaft for installing a rotating spray rod to achieve large-area spraying on the ground.

[0024] Preferably, a screw hole 13 is formed at the bottom of the housing 1 , and a mounting hole 41 corresponding to the screw hole 13 is formed on the bottom cover 4 . The bottom cover 4 is fixed to the screw hole 13 by means of bolts penetrating the mounting hole 41 .

[0025] The bottom cover is installed by bolts, and the installation process will not affect the installation inside the shell. The structure is simple and convenient.

[0026] Preferably, the bearing assembly 2 includes an angular contact bearing 20 and a deep groove ball bearing 21 , and a washer 14 abutting against the top of the angular contact bearing 20 is embedded in the housing 1 .

[0027] In the above structure, the bearing group is used to rotate with the shaft. The actual rotation effect is achieved by the rotating spray bar set at the bottom of the shaft. The two ends of the rotating spray bar are generally provided with inclined spray heads, thereby generating a rotation effect and enabling the shaft to rotate on the bearing group.

[0028] Preferably, the upper end surface of the annular sponge ring 5 and the upper end surface of the annular groove 40 are in the same plane.

[0029] When the annular sponge ring 5 is installed in the same plane, it will not be over-extruded, thereby causing a certain friction effect on the rotating shaft.

[0030] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A floor-washing disc rotating shaft assembly, comprising a housing (1) with a water inlet hole (10) at the top, a mounting groove (11) connected to the water inlet hole (10) at the bottom of the housing (1), a rotating shaft (3) sleeved with a bearing group (2) is arranged in the mounting groove (11), a through hole (30) communicating with each other from top to bottom is arranged in the middle of the rotating shaft (3), and the top of the through hole (30) is connected to the water inlet hole (10), the bottom of the rotating shaft (3) extends out of the lower end of the mounting groove (11), a retaining ring (12) located below the bearing group (2) is arranged on the side wall of the mounting groove (11), and the bottom of the rotating shaft (3) extends out of the middle of the retaining ring (12), characterized in that: A bottom cover (4) is arranged at the bottom of the housing (1), the bottom of the rotating shaft (3) extends out of the middle of the bottom cover (4), an annular groove (40) is provided on the upper end surface of the bottom cover (4), and an annular sponge ring (5) is arranged in the annular groove (40) and the inner ring abuts against the side wall of the rotating shaft (3).

2. A floor-washing disc rotating shaft assembly according to claim 1, characterized in that: The bottom of the housing (1) is provided with a screw hole (13), the bottom cover (4) is provided with a mounting hole (41) corresponding to the screw hole (13), and the bottom cover (4) is fixed to the screw hole (13) by means of bolts penetrating the mounting hole (41).

3. A floor-washing disc rotating shaft assembly according to claim 1 or 2, characterized in that: The bearing group (2) comprises an angular contact bearing (20) and a deep groove ball bearing (21), and a washer (14) is embedded in the housing (1) and abuts against the top of the angular contact bearing (20).

4. A floor-washing disc rotating shaft assembly according to claim 1 or 2, characterized in that: The upper end surface of the annular sponge ring (5) and the upper end surface of the annular groove (40) are located in the same plane.

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