Roller structure

Abstract

The utility model relates to the technical field of roller structures, and provides a roller structure which can improve the structural strength of a back plate, reduce dead angles where dirt is easily hidden, and reduce the effective working space of a roller occupied by a back structural part of the roller. A plurality of first rib plates extending from the edge of the back plate to the center of the back plate are arranged on the side, back to the barrel, of the back plate, and the first rib plates are distributed in the circumferential direction with the center of the back plate as the axis.

Description

Technical Field

[0001] The utility model relates to the technical field of roller structures, and in particular to a roller structure. Background Art

[0002] In order to ensure the structural strength of drum equipment, such as the drum back plate of a drum washing machine, various reinforcement structures are usually added to ensure that the drum remains balanced and stable when rotating at high speed, and withstands the force and pressure generated by the drum during the washing process.

[0003] Therefore, with the support of various reinforcement structures, not only the cost and weight of the drum back plate are increased, the support and drive device of the drum are heavily loaded, but also various dead corners that are easy to hide dirt and grime are easy to appear, which is difficult to clean, greatly shortening the cleaning and maintenance cycle of the equipment. At the same time, the claw-shaped support reinforcement structure of the traditional washing machine drum occupies more thickness of the drum bottom, reducing the effective working volume of the drum and making the effective use space smaller. Utility Model Content

[0004] The utility model provides a drum structure, which can improve the structural strength of the back plate, reduce dead corners that are easy to hide dirt and grime, and increase the effective working volume of the drum.

[0005] The technical solution of the utility model is as follows:

[0006] A drum structure comprises a drum body and a back plate. The back plate is provided with a plurality of first ribs extending from the edge of the back plate to the center thereof on the side facing away from the drum body. The first ribs are circumferentially distributed with the center of the back plate as the axis.

[0007] Furthermore, each first rib is provided with a second groove on the side facing the cylinder, and each second groove runs through the edge of the back plate to the center thereof.

[0008] Furthermore, the axial projection surfaces of each of the first ribs and each of the second grooves are both in a fan-shaped structure.

[0009] Furthermore, a backflow fillet is provided between the side surface of each of the first ribs and the back plate surface.

[0010] Furthermore, a backflow fillet is provided between the side wall and the bottom surface of each of the second grooves.

[0011] Furthermore, a first groove is formed between two adjacent first ribs and the back plate;

[0012] Each first groove is provided with a first flow guide member for guiding the medium flowing toward the center of the back plate out of the first groove.

[0013] Furthermore, each second groove is provided with a second guide member for guiding the medium flowing toward the center of the back plate out of the second groove.

[0014] Furthermore, one end of the first flow guide member facing the edge of the back plate and one end of the second flow guide member facing the edge of the back plate are both provided with a flow guide slope;

[0015] A third flow guide is provided at one end of the first groove away from the first flow guide, a fourth flow guide is provided at one end of the second groove away from the second flow guide, and the surfaces of the third flow guide and the fourth flow guide are both provided with flow guide slopes.

[0016] Furthermore, the first flow guide member and the second flow guide member are both triangular prism structures.

[0017] Furthermore, the two adjacent second grooves and the first rib facing the side of the cylinder form a second rib;

[0018] The first rib surface, the second rib surface, the first groove bottom surface and the second groove bottom surface are all planar structures;

[0019] The back plates (2) have at least two back plates, which are coaxially arranged and fit each other.

[0020] The working principle and beneficial effects of the utility model are:

[0021] The utility model provides a first rib on the side of the back plate facing away from the cylinder body, and makes the back plate stable in structure during operation, reduces the possibility of deformation and distortion, and helps to make the force more evenly distributed, reduces fatigue damage and local stress concentration, and improves the bearing capacity, durability and service life of the back plate.

[0022] At the same time, it reduces dead corners that can harbor dirt and grime. Since each first rib extends from the edge of the back plate to its own center and is distributed circumferentially with the center of the back plate as the axis, the overall structure forms a relatively smooth surface, reducing gaps and dead corners between internal structures, making it easier to clean and maintain, and extending the maintenance cycle. Compared with the traditional back plate support claw structure, it occupies less drum depth space, maximizing the effective working space of the drum in the confined space. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] Figure 1 It is a structural schematic diagram of embodiment 1;

[0025] Figure 2 is a cross-sectional view of embodiment 1;

[0026] Figure 3 for Figure 1 Enlarged view of point A in .

[0027] In the figure: 1, cylinder; 2, back plate; 3, first rib; 4, first groove; 5, second rib; 6, second groove; 7, first guide member; 8, second guide member; 9, guide slope; 91, backflow fillet. DETAILED DESCRIPTION

[0028] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Embodiment 1

[0030] like Figure 1-3 As shown, a drum structure can be applied to household appliances such as washing machines, and can also be applied to cleaning equipment in various industrial occasions. It includes a cylinder 1 and a back plate 2. In order to improve the structural strength, this embodiment provides a plurality of first ribs 3 extending from the edge of the back plate 2 to the center of the back plate 2 on the side facing away from the cylinder 1, and each first rib 3 is circumferentially distributed with the center of the back plate 2 as the axis. A first groove 4 is formed between two adjacent first ribs 3 and the back plate 2. With this design, the back plate 2 has a stable structure during operation, reducing the possibility of deformation and distortion. And through the streamlined and smooth structure, dead corners where dirt and grime hide are reduced.

[0031] On the basis of setting the first rib 3, the present embodiment also opens a second groove 6 on the side of the first rib 3 facing the barrel 1, so that the second rib 5 is formed between two adjacent second grooves 6 and the side of the first rib 3 facing the barrel 1. Such a design allows each second groove 6 to penetrate from the edge of the back plate 2 to its own center. Such a design can, on the one hand, reduce the weight of the back plate 2 and reduce the load of the drum support structure and the driver. At the same time, the second groove 6 can increase the friction with the clothes in the drum and improve the washing effect of the back plate 2 when used in a washing machine. The streamlined and smooth structure also reduces the dead corners on this side of the back plate 2 where dirt and grime are hidden.

[0032] Since the surface of the back plate 2 is usually designed as a circular structure, and a connecting hole needs to be opened in the middle to connect with structures such as a rotating shaft, in this embodiment, the axial projection surfaces of each first rib 3 and each second groove 6 are all fan-shaped structures, which can further improve the strength, uniform force bearing and drainage performance of the back plate 2 structure.

[0033] And because there is an angle between the first rib 3 and the surface of the back plate 2, dirt is easily accumulated and inconvenient to clean. Therefore, in this embodiment, a backflow fillet 91 is set between the side of each first rib 3 and the surface of the back plate 2, and between the side wall and the bottom surface of each second groove 6 to reduce the difficulty of cleaning and maintenance. At the same time, it can also reduce the resistance of the fluid on the surface of the structure, which helps the fluid to flow smoothly, including dirt or washing media.

[0034] In addition, in order to prevent dirt from flowing along each first groove 4 to the rotating shaft and other structures at the center of the back plate 2, the present embodiment provides a first guide 7 at each first groove 4, which is used to block the portion of the first groove 4 close to the center of the back plate 2 and guide the medium flowing to the center of the back plate 2 out of the first groove 4. Similarly, a second guide 8 is provided at each second groove 6, which is used to block the portion of the second groove 6 close to the center of the back plate 2 and guide the medium flowing to the center of the back plate 2 out of the second groove 6. Specifically, in the present embodiment, a guide slope 9 is provided at one end of the first guide 7 facing the edge of the back plate 2 and one end of the second guide 8 facing the edge of the back plate 2, and the dirt flowing to the center of the back plate 2 is guided to the surface of the back plate 2 through the guide slope 9, which facilitates cleaning and rinsing.

[0035] The first guide member 7 and the second guide member 8 are both triangular prism structures, which can just combine with the guide slope 9, and the first guide member 7 and the second guide member 8 are respectively embedded in the first groove 4 and the second groove 6, blocking the first groove 4 and the second groove 6 near the center of the back panel 2 to prevent stains from entering this area.

[0036] Moreover, in this embodiment, a third flow guide is provided at the end of the first groove 4 away from the first flow guide 7, and a fourth flow guide is provided at the end of the second groove 6 away from the second flow guide 8. The surfaces of the third flow guide and the fourth flow guide are also provided with flow guide slopes 9 (the flow guide slope 9 on the third flow guide faces the first flow guide 7, and the flow guide slope 9 on the fourth flow guide faces the second flow guide 8). The arrangement of the third flow guide and the fourth flow guide further reduces the dead angles in the first groove 4 and the second groove 6, so that each corner in the first groove 4 and the second groove 6 is rounded or obtuse, which can not only eliminate the dead angles but also play a drainage role to avoid the accumulation of stains.

[0037] The provision of several guide members in this embodiment, on the one hand, facilitates sewage and water discharge, and on the other hand, can enhance the tensile strength here, thereby reinforcing the structural strength of the connection with the side of the inner cylinder, especially strengthening the shear / eccentric swing force on the side of the inner cylinder or the bottom of the barrel.

[0038] In order to facilitate processing and reduce production costs, the surface of the first rib plate 3, the surface of the second rib plate 5, the bottom surface of the first groove 4 and the bottom surface of the second groove 6 in this embodiment are all flat structures. They can be integrally formed by stamping, which has high strength, reduces water leakage points, and is also convenient for cleaning and maintenance. The back plate 2 occupies little space and has little resistance when rotating.

[0039] Embodiment 2

[0040] On the basis of the above-mentioned implementation mode, in order to further improve the structural strength of the drum, this embodiment provides at least two back plates 2, and the two back plates 2 are coaxially arranged and fit together (adjacent first ribs 3 and second ribs 5 can be fit together) to improve the structural strength at this location.

[0041] The above are only preferred 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 drum structure, comprising a drum body (1) and a back plate (2), characterized in that: A plurality of first ribs (3) extending from the edge of the back plate (2) to the center of the back plate (2) are provided on the side of the back plate (2) facing away from the cylinder (1), and each of the first ribs (3) is circumferentially distributed with the center of the back plate (2) as the axis.

2. A drum structure according to claim 1, characterized in that: Each first rib (3) is provided with a second groove (6) on the side facing the cylinder (1), and each second groove (6) runs from the edge of the back plate (2) to the center thereof.

3. A drum structure according to claim 2, characterized in that: The axial projection surfaces of each of the first ribs (3) and each of the second grooves (6) are both in a fan-shaped ring structure.

4. A drum structure according to claim 1, 2 or 3, characterized in that: A reverse flow fillet (91) is provided between the side surface of each of the first ribs (3) and the surface of the back plate (2).

5. A drum structure according to claim 2 or 3, characterized in that: A backflow fillet is provided between the side wall and the bottom surface of each of the second grooves (6).

6. A drum structure according to claim 2, characterized in that: A first groove (4) is formed between two adjacent first ribs (3) and the back plate (2); Each first groove (4) is provided with a first flow guide (7) for guiding the medium flowing toward the center of the back plate (2) out of the first groove (4).

7. A drum structure according to claim 6, characterized in that: Each second groove (6) is provided with a second flow guide (8) for guiding the medium flowing toward the center of the back plate (2) out of the second groove (6).

8. A drum structure according to claim 7, characterized in that: An end of the first flow guide member (7) facing the edge of the back plate (2) and an end of the second flow guide member (8) facing the edge of the back plate (2) are both provided with a flow guide slope (9); A third flow guide is provided at one end of the first groove (4) away from the first flow guide (7), a fourth flow guide is provided at one end of the second groove (6) away from the second flow guide (8), and the surfaces of the third flow guide and the fourth flow guide are both provided with flow guide slopes (9).

9. A drum structure according to claim 8, characterized in that: The first flow guide member (7) and the second flow guide member (8) are both triangular prism structures.

10. A drum structure according to claim 2 or 3, characterized in that: The second rib (5) is formed between two adjacent second grooves (6) and the first rib (3) on the side facing the cylinder (1); Furthermore, the surface of the first rib (3), the surface of the second rib (5), the bottom surface of the first groove (4) and the bottom surface of the second groove (6) are all planar structures; The back plates (2) have at least two back plates (2), and the two back plates (2) are coaxially arranged and fit together.

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