Rotating shaft bushing structure of garbage disposer

Abstract

The utility model relates to a garbage disposer rotating shaft bushing structure which comprises a rotating shaft, a bushing, an oil seal and a hanging lock sleeve, the rotating shaft is sequentially sleeved with a positioning ring, the bushing, the hanging lock sleeve and a grinding disc from bottom to top, the bottom end of the bushing abuts against the positioning ring, the outer wall of the lower end of the bushing is sleeved with the oil seal, and the outer ring of the oil seal is attached to the inner wall of a positioning groove. The upper end of the bushing extends outwards and is provided with a circle of convex edge part; the convex edge part is positioned above the inner ring of the oil seal and is used for limiting the rising of the oil seal; the top end of the convex edge part is a plane and abuts against the hanging lock sleeve, so that the top of the hanging lock sleeve is tightly attached to the bottom of the grinding disc, the upper end of the oil seal is resisted and limited through the convex edge part of the lining, the oil seal is effectively prevented from moving upwards to be separated from the positioning groove, and the sealing effect of the oil seal is guaranteed; and the bushing supporting surface is increased, so that the rotating stability of the grinding disc is improved, and the vibration of the grinding disc during high-speed rotation is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to garbage processor technical field, especially in kitchen garbage processor motor rotating shaft's bushing structure. BACKGROUND

[0002] Kitchen garbage processor utilizes high -speed rotation's permanent magnet motor to drive the grinding disc rotation in grinding cavity, food garbage is under the action of centrifugal force and collides with each other, in very short time is ground into fine particle and is discharged from the pipeline along the water flow, thereby reaches clean environment, dispels peculiar smell etc. The motor drive structure of existing garbage processor needs corresponding oil seal to seal the upper and lower ends of motor rotating shaft, avoids the moisture into the motor and causes the damage. At present according to market feedback, when the motor is working, the motor rotating shaft will drive the bushing to rotate, and the oil seal set on the outside of the bushing will also rotate due to the friction. The traditional bushing is a hollow cylindrical structure, and the upper end has no corresponding limiting structure, which causes the oil seal to gradually move upward under the driving of long-term rotation, and eventually causes the oil seal to separate from the positioning groove, thereby affecting the sealing effect. SUMMARY

[0003] The utility model discloses a garbage processor rotating shaft bushing structure, solve the problem that the rotating shaft bushing rotates easily drives the oil seal to move and separate from the positioning groove in the prior art.

[0004] The specific technical scheme is as follows:

[0005] A garbage processor rotating shaft bushing structure is arranged in a positioning groove in the center of a drain groove. The rotating shaft bushing structure includes a rotating shaft, a bushing, an oil seal, and a hanging lock sleeve. A positioning ring, the bushing, the hanging lock sleeve, and a grinding disc are sequentially sleeved on the rotating shaft from bottom to top. The bottom end of the bushing abuts against the positioning ring, and the oil seal is sleeved on the outer wall of the lower end of the bushing. The outer ring of the oil seal is in close contact with the inner wall of the positioning groove. The upper end of the bushing extends outward and is provided with a ring of convex edge portions. The convex edge portions are above the inner ring of the oil seal and limit the upward movement of the oil seal. The top end of the convex edge portions is a flat surface that abuts against the hanging lock sleeve, so that the top of the hanging lock sleeve is in close contact with the bottom of the grinding disc.

[0006] Further, the convex edge portions are in a hollow cylindrical structure, and the diameter of the convex edge portions is not less than the diameter of the inner ring of the oil seal.

[0007] Further, there is a gap between the bottom of the convex edge portions and the top of the inner ring of the oil seal.

[0008] Further, the lower end of the oil seal is limited by the positioning ring.

[0009] Furthermore, the top of the hanging lock sleeve is flat and fits against the bottom plane of the grinding disc, and the outer edge of the hanging lock sleeve is bent downward and covers the outside of the positioning groove.

[0010] Furthermore, the rotating shaft is provided with a stepped groove, and the positioning ring is provided on the stepped groove to position the positioning ring.

[0011] The beneficial effects of this utility model are reflected in:

[0012] (1) Compared with the prior art, the present invention provides a raised edge at the upper end of the bushing, and the raised edge blocks and limits the rise of the oil seal, effectively preventing the oil seal from moving upward and falling out of the positioning groove, thereby ensuring the sealing effect of the oil seal.

[0013] (2) In this utility model, the convex edge of the bushing abuts against the bottom of the hanging lock sleeve. Compared with the prior art, this further increases the support surface of the bushing, thereby improving the stability of the grinding disc rotation and reducing the vibration generated when the grinding disc rotates at high speed. Attached Figure Description

[0014] Fig. 1 This is a schematic diagram of the structure of this utility model.

[0015] Fig. 2 This is a cross-sectional view of the rotating shaft bushing structure of this utility model.

[0016] Fig. 3 This is a perspective view of the bushing in this utility model.

[0017] Explanation of reference numerals in the attached drawings: 1. Drainage groove; 101. Positioning groove; 2. Grinding disc; 3. Rotating shaft; 31. Step groove; 4. Bushing; 41. Protruding edge; 5. Oil seal; 6. Hanging lock sleeve; 7. Positioning ring. Detailed Implementation

[0018] To make the technical solution of this utility model clearer and more explicit, the utility model will be further described below with reference to the accompanying drawings. Any solution derived by equivalent substitution and conventional reasoning of the technical features of this utility model falls within the protection scope of this utility model. The fixed connections and fixed settings mentioned in this utility model are all common connection methods in the mechanical field, including welding, bolt and nut connections, and screw connections.

[0019] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] Please see the appendix Figs. 1-3 This embodiment provides a waste disposer shaft bushing structure, which is set in the positioning groove 101 in the center of the drainage trough 1. The shaft 3 bushing 4 structure includes a shaft 3, a bushing 4, an oil seal 5, and a hanging lock sleeve 6. The lower end of the shaft is driven to rotate by a motor. The upper end of the shaft 3 is fitted with a positioning ring 7, a bushing 4, a hanging lock sleeve 6, and a grinding disc 2 from bottom to top. The top of the shaft 3 is connected and fixed to the grinding disc 2 with fasteners, thereby driving the grinding disc 2 to rotate at high speed. The rotating shaft 3 is provided with a stepped groove 31, and the positioning ring 7 is provided on the stepped groove 31 to support and position the positioning ring 7. The bottom end of the bushing 4 abuts against the positioning ring 7. An oil seal 5 is fitted on the outer wall of the lower end of the bushing 4. The outer ring of the oil seal 5 is fitted against the inner wall of the positioning groove 101. The lower end of the oil seal 5 is supported and limited by the positioning ring 7. The upper end of the bushing 4 extends outward and is provided with a convex edge 41. The convex edge 41 has a hollow cylindrical structure, and the diameter of the convex edge 41 is not less than the diameter of the inner ring of the oil seal 5. The convex edge 41 is located above the inner ring of the oil seal 5 and is used to prevent the oil seal 5 from rising, thereby ensuring the sealing effect of the oil seal 5.

[0021] The top of the protruding edge 41 is flat and abuts against the hanging lock sleeve 6, so that the top of the hanging lock sleeve 6 abuts against the bottom of the grinding disc 2. The grinding disc 2 can be adjusted on the rotating shaft 3 by means of threads, so that the grinding disc 2 can be tightly fitted downward with the hanging lock sleeve 6. Thus, the hanging lock sleeve 6 supports and positions the grinding disc 2 under the action of the bushing 4 and other components. Since the hanging lock sleeve 6 is relatively thin and the support effect is limited, by increasing the support area of ​​the upper protruding edge 41 of the bushing 4, the stability of the grinding disc 2 when rotating can be improved.

[0022] In this embodiment, the top of the hanging lock sleeve 6 is flat and fits against the bottom plane of the grinding disc 2. The outer edge of the hanging lock sleeve 6 is bent downward and covers the outside of the positioning groove 101, thereby preventing debris from entering the positioning groove 101.

[0023] The above description is merely a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.

Claims

1. A waste disposer shaft bushing structure, disposed in a positioning groove (101) at the center of a drainage trough (1), the shaft (3) bushing (4) structure includes a shaft (3), a bushing (4), an oil seal (5), and a locking sleeve (6), wherein a positioning ring (7), a bushing (4), a locking sleeve (6), and a grinding disc (2) are sequentially fitted on the shaft (3) from bottom to top, the bottom end of the bushing (4) abuts against the positioning ring (7), and the oil seal (5) is fitted on the outer wall of the lower end of the bushing (4), the outer ring of the oil seal (5) being fitted against the inner wall of the positioning groove (101), characterized in that, The upper end of the bushing (4) extends outward and is provided with a raised edge (41). The raised edge (41) is located above the inner ring of the oil seal (5) and limits the rise of the oil seal (5). The top of the raised edge (41) is flat and abuts against the hanging lock sleeve (6), so that the top of the hanging lock sleeve (6) is tightly fitted with the bottom of the grinding disc (2).

2. The waste disposer shaft bushing structure as described in claim 1, characterized in that, The convex edge (41) has a hollow cylindrical structure, and the diameter of the convex edge (41) is not less than the diameter of the inner ring of the oil seal (5).

3. The waste disposer shaft bushing structure as described in claim 2, characterized in that, There is a gap between the bottom of the convex edge (41) and the top of the inner ring of the oil seal (5).

4. The waste disposer shaft bushing structure as described in claim 1, characterized in that, The lower end of the oil seal (5) is limited by the positioning ring (7).

5. The waste disposer shaft bushing structure as described in claim 1, characterized in that, The top of the hanging lock sleeve (6) is flat and fits against the bottom plane of the grinding disc (2). The outer side of the hanging lock sleeve (6) is bent downward and covers the outside of the positioning groove (101).

6. The waste disposer shaft bushing structure as described in claim 1, characterized in that, The rotating shaft (3) is provided with a stepped groove (31), and the positioning ring (7) is provided on the stepped groove (31) to position the positioning ring (7).

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