Waterproof labyrinth ring, driving structure with waterproof labyrinth ring and floor washing equipment

Abstract

The utility model relates to the technical field of driving devices in floor washing equipment, in particular to a waterproof labyrinth ring, a driving structure with the waterproof labyrinth ring and floor washing equipment, the waterproof labyrinth ring comprises a ring body, and the ring body comprises a driving end matching surface and an executing end matching surface; at least the execution end matching surface is provided with a first waterproof groove which is annularly arranged; the ring body is further provided with a mounting hole, and the mounting hole and the ring body are coaxially arranged. The waterproof labyrinth ring is arranged and applied to the driving structure in the scrubber, the driving end matching face is used for facing the motor side of the driving end, the execution end matching face is used for facing the movable impeller side of the execution end, and in the application scene, the first waterproof groove formed in the execution end matching face is in an inverted buckle shape; and external moisture is effectively prevented from invading the bearing, and the long-term stable and smooth operation of the bearing is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to driving device technical field in floor washing equipment, especially driving structure and floor washing equipment with waterproof labyrinth ring of a kind of waterproof labyrinth ring. BACKGROUND

[0002] In the field of cleaning equipment today, floor washing machine has become an important tool widely used in family, commercial place and various environments, greatly facilitates ground cleaning work. With the continuous improvement of people's demand for cleaning efficiency and convenience, the market demand of floor washing machine continues to rise, prompting major manufacturers to continuously invest in research and development, promoting product upgrading.

[0003] However, there is a key problem in the design and manufacturing process of the existing floor washing machine, that is, the waterproof effect is poor. The working nature of the floor washing machine determines that it inevitably frequently contacts a large amount of water during use. Whether it is the splash of water when cleaning the slippery ground, or the impact of water flow when washing the rolling brush, water tank and other parts of the machine, water can easily penetrate into the machine. Once the water enters, the risk of damage to the bearing at the key position increases dramatically. As the core supporting component of the floor washing machine, the bearing bears the weight of the rotating component and ensures smooth rotation. The penetration of water will destroy the lubrication environment inside the bearing, causing rust in the originally precisely matched ball, raceway and other structures, and thus increasing the friction and reducing the rotation flexibility. This damaged condition not only affects the cleaning performance of the floor washing machine at the moment, such as insufficient cleaning power and abnormally increased noise, but also greatly shortens its service life, frequent maintenance and replacement of bearing parts, increases the user's use cost, and reduces the market competitiveness of the product. Therefore, in order to solve the waterproof performance of the core part in the floor washing machine, the utility model develops a waterproof labyrinth ring, a driving structure with the waterproof labyrinth ring and a floor washing equipment to solve the problems existing in the prior art. UTILITY MODEL CONTENTS

[0004] The utility model aims at: providing a waterproof labyrinth ring, a driving structure with the waterproof labyrinth ring and a floor washing equipment to solve the problem of poor waterproof performance of the floor washing equipment in the prior art, which leads to water entering the bearing and thus reduces the service life of the whole equipment.

[0005] The technical scheme of the utility model is: a waterproof labyrinth ring, comprising a ring body, the ring body comprising a driving end matching surface and an execution end matching surface; at least a first waterproof groove is formed on the execution end matching surface in a ring shape;

[0006] The ring body is further provided with a mounting hole, and the mounting hole is coaxially arranged with the ring body.

[0007] Preferably, a second waterproof groove is arranged on the driving end matching surface in a ring shape.

[0008] Preferably, the first waterproof groove corresponds to the inner ring side of the execution end of the matching surface and the outer ring side of the execution end of the matching surface at the same or different height;

[0009] The second waterproof groove corresponds to the inner ring side of the drive end of the matching surface and the outer ring side of the drive end of the matching surface at the same or different height.

[0010] The utility model discloses still disclose a kind of drive structure, including above-mentioned a kind of waterproof labyrinth ring, still including shell, motor, fixed vane and moving vane;The motor is installed in shell, and motor shaft of the motor extends to the outside of the shell;The fixed vane is fixedly connected with the shell, and the moving vane is fixedly connected with the motor shaft extending to the outside of the shell;

[0011] Wherein, the waterproof labyrinth ring is installed between the shell and moving vane;The mounting hole is penetrated by motor shaft, and the waterproof labyrinth ring is fixedly connected with the motor shaft;The drive end of the matching surface is towards the motor side, the execution end of the matching surface is towards the moving vane side, and the first waterproof groove is directly or indirectly cooperated with the fixed vane.

[0012] Preferably, the first waterproof groove is directly cooperated with the fixed vane gap;

[0013] The fixed vane has first waterproof part in the first waterproof groove, and has first recessed groove for the waterproof labyrinth ring of outer ring side of first waterproof groove.

[0014] Preferably, the first recessed groove is configured as first oil groove.

[0015] Preferably, the drive end of the matching surface is provided with annularly arranged second waterproof groove, and the second waterproof groove is directly cooperated with the shell gap;

[0016] The shell has second waterproof part in the second waterproof groove, and has second recessed groove for the waterproof labyrinth ring of inner ring side and outer ring side of second waterproof groove.

[0017] Preferably, bearing is assembled on the motor shaft, and the bearing is divided into inside and outside of the shell end face with waterproof labyrinth ring, and the outer ring of the bearing is abutted with the inner wall end face of shell, and the inner ring of the bearing corresponds to the recessed formation of second oil groove in the inner wall of shell.

[0018] Preferably, the moving vane outside is covered with wind cover, and fluid passage is formed on the end face opposite to moving vane of wind cover.

[0019] The utility model further discloses a kind of washing ground equipment, including above-mentioned a kind of drive structure.

[0020] Compared with the prior art, the utility model has the advantages of:

[0021] (1) the present application is applied to the driving structure in the scrubber, wherein the driving end cooperation surface is used for the motor side of the driving end, the execution end cooperation surface is used for the dynamic vane wheel side of the execution end, the first waterproof groove formed on the execution end cooperation surface is inverted in the application scene, effectively blocks the external moisture invasion bearing, ensures that the bearing runs stably and smoothly for a long time.

[0022] (2) the second waterproof groove formed in the driving end cooperation surface further prolongs the path from the external environment to the bearing, and the labyrinth-shaped path structure further improves the waterproof performance, prevents the motor shaft from being stuck and shaking due to bearing failure, and runs stably.

[0023] (3) the first oil groove and the second oil groove are further arranged to prevent the moisture in the external environment from entering the bearing, the service life of the bearing is significantly improved through multiple waterproof measures, and the maintenance and maintenance cost of the equipment is also reduced. BRIEF DESCRIPTION OF DRAWINGS

[0024] The utility model will be further described below in combination with the drawings and examples:

[0025] Figure 1 It is a sectional view of the waterproof labyrinth ring of the utility model;

[0026] Figure 2 It is a structural schematic view of the waterproof labyrinth ring along the driving end cooperation surface of the utility model;

[0027] Figure 3 It is a structural schematic view of the waterproof labyrinth ring along the execution end cooperation surface of the utility model;

[0028] Figure 4 It is a schematic view of the driving structure of the utility model;

[0029] Figure 5 It is a schematic view of the driving structure of the utility model at A place;

[0030] Figure 6 It is a schematic view of the driving structure of the utility model in another embodiment;

[0031] Figure 7 It is a schematic view of the driving structure of the utility model at B place in another embodiment;

[0032] Figure 8 It is a sectional view of the waterproof labyrinth ring of the utility model in another embodiment;

[0033] Figure 9 A sectional view of a waterproof labyrinth ring fixedly connected in a locking manner in a driving structure.

[0034] 1. a waterproof labyrinth ring;

[0035] 10. a ring body, 11. a mounting hole, 12. an execution end matching surface, 121. a first waterproof groove, 13. a driving end matching surface, 131. a second waterproof groove;

[0036] 2. a shell;

[0037] 21. a second oil groove, 22. a second waterproof part, 23. a second inward recessed groove;

[0038] 3. a motor;

[0039] 31. a motor shaft, 32. a bearing;

[0040] 4. a stationary impeller;

[0041] 41. a first waterproof part, 42. a first inward recessed groove, 421. a first oil groove;

[0042] 5. a moving impeller, 51. a nut, 52. a pressing ring;

[0043] 6. a fan cover, 61. a fluid passage. DETAILED DESCRIPTION

[0044] The content of the utility model will be further described in detail in combination with specific embodiments:

[0045] In order to facilitate understanding, first of all, the application scenario of the present application is explained, in the field of scrubber, due to its working nature, it is inevitable that a large amount of water will be frequently contacted in the use process, and the water is easy to invade the shell in which the motor is installed, and then enters the bearing, once the bearing is damaged by water, the service life will be greatly reduced, therefore, the present application solves the problem that the bearing is easy to be invaded by water by setting a waterproof labyrinth ring, and the specific structure and assembly mode of the waterproof labyrinth ring are as follows.

[0046] As Figures 1-3 shown, a waterproof labyrinth ring 1, comprising a ring body 10, the ring body 10 is provided with a mounting hole 11, the mounting hole 11 is coaxially arranged with the ring body 10.

[0047] The ring body 10 comprises a driving end matching surface 13 and an execution end matching surface 12, in an embodiment, at least the execution end matching surface 12 is provided with a first waterproof groove 121 arranged in a ring shape; of course, in other embodiments, the driving end matching surface 13 can also be provided with a second waterproof groove 131 arranged in a ring shape.

[0048] Due to the setting of the first waterproof groove 121, the execution end fitting surface 12 is not a complete continuous end surface, in an embodiment, the execution end fitting surface 12 on the inner ring side and the execution end fitting surface 12 on the outer ring side corresponding to the first waterproof groove 121 are at different heights; of course, in other embodiments, the execution end fitting surface 12 on the inner ring side and the execution end fitting surface 12 on the outer ring side corresponding to the first waterproof groove 121 can also be at the same height. The same as the above, due to the setting of the second waterproof groove 131, the driving end fitting surface 13 is not a complete continuous end surface, in an embodiment, the driving end fitting surface 13 on the inner ring side and the driving end fitting surface 13 on the outer ring side corresponding to the second waterproof groove 131 are at different heights; in other embodiments, the driving end fitting surface 13 on the inner ring side and the driving end fitting surface 13 on the outer ring side corresponding to the second waterproof groove 131 are at the same height.

[0049] Regarding the installation mode of the waterproof labyrinth ring 1, the utility model also discloses a driving structure, as shown in Figure 4 The driving structure comprises the waterproof labyrinth ring 1, a shell 2, a motor 3, a fixed impeller 4 and a moving impeller 5.

[0050] The motor 3 is installed in the shell 2, and the motor shaft 31 of the motor 3 extends to the outside of the shell 2; the end surface inner wall of the shell 2, through which the motor shaft 31 penetrates, is provided with a bearing 32, and the bearing 32 is assembled on the motor shaft 31. The moving impeller 5 is fixedly connected with the motor shaft 31 extending to the outside of the shell 2, and can adopt an interference fit mode; a fluid passage 61 is formed on the end surface of the wind cover 6 opposite to the moving impeller 5.

[0051] In the traditional structure, due to the assembly gap at each assembly interface, the bearing 32 is easily damaged by water invasion. Therefore, in combination with Figure 4 The outer ring of the bearing 32 abuts against the end surface of the inner wall of the shell 2, and the inner ring corresponding to the bearing 32 is recessed to form a second oil groove 21 in the inner wall of the shell 2, and the second oil groove 21 is configured as an oil cup structure to prevent water from the external environment from entering the bearing 32.

[0052] The waterproof labyrinth ring 1 is assembled to the motor shaft 31 through the mounting hole 11 and is fixedly connected with the motor shaft 31, and rotates synchronously with the motor shaft 31 in the rotating process of the motor shaft 31; the waterproof labyrinth ring 1 and the bearing 32 are separately arranged on the inner and outer sides of the end surface of the shell 2, wherein the driving end fitting surface 13 faces the motor 3 side of the driving end, and the execution end fitting surface 12 faces the moving impeller 5 side of the execution end.

[0053] As shown in Figure 5As shown, the second waterproof groove 131 formed on the driving end matching surface 13 is in clearance fit with the shell 2; the shell 2 has the second waterproof part 22 accommodated in the second waterproof groove 131, and has the second recessed groove 23 for accommodating the waterproof labyrinth ring 1 on the inner and outer circle sides of the second waterproof groove 131.

[0054] The first waterproof groove 121 formed on the driving end matching surface 12 is directly in clearance fit with the fixed impeller 4; the fixed impeller 4 has the first waterproof part 41 accommodated in the first waterproof groove 121, and has the first recessed groove 42 for accommodating the waterproof labyrinth ring 1 on the outer circle side of the first waterproof groove 121. In other embodiments, other fixed parts can also be connected on the fixed impeller 4, and the cooperation with the waterproof labyrinth ring 1 is realized by arranging the first waterproof part 41 and the first recessed groove 42 on the fixed part, at this time, the indirect cooperation between the first waterproof groove 121 and the fixed impeller 4 is realized. Further, the first recessed groove 42 can be configured as a first oil groove 421, which further prevents the water in the external environment from entering the bearing 32.

[0055] Based on the arrangement of the first waterproof groove 121 and the second waterproof groove 131, the path of the external environment to the bearing 32 is lengthened, and there is a tortuous height difference, and the labyrinth-shaped path structure further improves the waterproof performance and prevents the water from interfering with the bearing 32. More importantly, the first waterproof groove 121 is in a reverse buckle shape, which can more effectively block the external water from invading the bearing 32, so in other embodiments, only the first waterproof groove 121 can also be arranged.

[0056] In this embodiment, the first waterproof groove 121 is arranged on the outer circle side of the second waterproof groove 131, that is, the inner diameter of the first waterproof groove 121 is greater than the outer diameter of the second waterproof groove 131; in other embodiments, the inner diameter of the second waterproof groove 131 can also be greater than the outer diameter of the first waterproof groove 121. As for the number of the first waterproof groove 121 and the number of the second waterproof groove 131, reasonable selection can also be made according to the needs in the actual application scene.

[0057] When the fixed impeller 4 is buckled into the waterproof labyrinth ring 1, the fixed impeller 4 is fixedly connected with the shell 2, and the fixed connection can be completed by bolts. When the fixed impeller 4, the waterproof labyrinth ring 1 and the shell 2 are assembled, as shown in Figure 5 In one embodiment, the outer circle side of the driving end matching surface 13 of the outermost second waterproof groove 131 is a complete annular plane, and the height of the annular plane is higher than the height of the matching end surface between the shell 2 and the fixed impeller 4, and then the second recessed groove 23 is formed on the shell 2 for accommodating the outermost driving end matching surface 13.

[0058] In another embodiment, as shown in Figure 6 , Figure 7As shown, the outermost second waterproof groove 131 outer ring side of the drive end matching surface 13 is two annular planes with height difference, the outermost annular plane has a lower height than the height of the matching end surface between the shell 2 and the fixed impeller 4, and the annular plane at the inner ring is accommodated in the second inner groove 23 of the shell 2, at this time, the corresponding waterproof labyrinth ring 1 structure is as shown in Figure 8 .

[0059] In summary, the multi-stage waterproof measures are adopted in the application, which effectively prevents water from entering the bearing 32, ensures the long-term stable and smooth operation of the bearing 32, and the multi-stage waterproof measures are mainly as follows:

[0060] a. The first waterproof groove 121 in the form of an inverted buckle, the first waterproof groove 121 is matched with the fixed impeller 4;

[0061] b. The second waterproof groove 131 opposite to the opening direction of the first waterproof groove 121, the second waterproof groove 131 is matched with the shell 2;

[0062] c. The first oil groove 421 formed on the fixed impeller 4;

[0063] d. The second oil groove 21 formed on the shell 2.

[0064] At the same time, the inner and outer diameters of the first waterproof groove 121 and the second waterproof groove 131, the number of the first waterproof groove 121 and the second waterproof groove 131, the height of the drive end matching surface 13 and the height of the execution end matching surface 12 can be reasonably selected according to actual needs, and the application only provides some embodiments, but is not limited to the above-mentioned embodiments.

[0065] As further disclosed, since the waterproof labyrinth ring 1 needs to rotate synchronously with the motor shaft 31, the waterproof labyrinth ring 1 needs to be relatively fixed with the motor shaft 31, in one embodiment, as shown in Figure 4 , Figure 6 , the waterproof labyrinth ring 1 is connected with the motor shaft 31 in the form of interference fit. In other embodiments, as shown in Figure 9 , the waterproof labyrinth ring 1 is connected with the motor shaft 31 in the form of clearance fit, the drive end matching surface 13 of the waterproof labyrinth ring 1 abuts against the inner ring of the bearing 32, the execution end matching surface 12 of the waterproof labyrinth ring 1 abuts against the movable impeller 5, and is locked and fixed through the nut 51, and of course, the pressure ring 52 can also be arranged between the nut 51 and the movable impeller 5.

[0066] Based on the above disclosure of the waterproof labyrinth ring 1 and the driving structure, the utility model also relates to a driving structure, the waterproof labyrinth ring 1 is accurately matched with the driving structure of the scrubber, under the traditional waterproof measures, the first waterproof groove 121 in the form of an inverted buckle is added, which has a significant effect on preventing water from entering the bearing 32, ensures the long-term stable operation of the bearing 32, and improves the service life of the overall structure.

[0067] The above examples are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application, therefore, from any point of view, the examples should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

Claims

1. A waterproofing labyrinth ring characterized in that, The ring body (10) comprises a driving end matching surface (13) and an execution end matching surface (12); at least the execution end matching surface (12) is provided with a first waterproof groove (121) arranged in a ring shape; The ring body (10) is further provided with a mounting hole (11) coaxially arranged with the ring body (10).

2. A labyrinth ring according to claim 1, characterized in that: The driving end matching surface (13) is provided with a second waterproof groove (131) arranged in a ring shape.

3. A labyrinth ring according to claim 2, characterized in that: The execution end matching surface (12) on the inner ring side and the execution end matching surface (12) on the outer ring side corresponding to the first waterproof groove (121) are at the same or different heights; The driving end matching surface (13) on the inner ring side and the driving end matching surface (13) on the outer ring side corresponding to the second waterproof groove (131) are at the same or different heights.

4. A drive structure, characterized by The waterproof labyrinth ring (1) comprises a housing (2), a motor (3), a stationary vane (4) and a moving vane (5); the motor (3) is installed in the housing (2), a motor shaft (31) of the motor (3) extends to the outside of the housing (2); the stationary vane (4) is fixedly connected with the housing (2), and the moving vane (5) is fixedly connected with the motor shaft (31) extending to the outside of the housing (2); The waterproof labyrinth ring (1) is installed between the housing (2) and the moving vane (5); the mounting hole (11) is penetrated by the motor shaft (31), and the waterproof labyrinth ring (1) is fixedly connected with the motor shaft (31); the driving end matching surface (13) faces one side of the motor (3), the execution end matching surface (12) faces one side of the moving vane (5), and the first waterproof groove (121) directly or indirectly matches with the stationary vane (4).

5. A drive structure according to claim 4, wherein: The first waterproof groove (121) directly matches with the stationary vane (4) in a gap; The stationary vane (4) has a first waterproof part (41) accommodated in the first waterproof groove (121), and has a first recessed groove (42) for accommodating the waterproof labyrinth ring (1) on the outer ring side of the first waterproof groove (121).

6. A drive structure according to claim 5, wherein: The first recessed groove (42) is configured as a first oil groove (421).

7. A drive structure according to claim 5, wherein: The driving end matching surface (13) is provided with a second waterproof groove (131) arranged in a ring shape, and the second waterproof groove (131) directly matches with the housing (2) in a gap; The housing (2) has a second waterproof part (22) accommodated in the second waterproof groove (131), and has a second recessed groove (23) for accommodating the waterproof labyrinth ring (1) on the inner ring side and the outer ring side of the second waterproof groove (131).

8. The drive structure of claim 4, wherein: The motor shaft (31) is provided with a bearing (32), the bearing (32) and the waterproof labyrinth ring (1) are arranged on the inner and outer sides of the end face of the housing (2), the outer ring of the bearing (32) abuts against the end face of the inner wall of the housing (2), and the inner ring of the bearing (32) corresponds to a recessed second oil groove (21) formed in the inner wall of the housing (2).

9. The drive structure of claim 4, wherein: The outer side of the moving vane wheel (5) is provided with a fan cover (6), and a fluid passage (61) is formed on the end face opposite to the moving vane wheel (5).

10. A floor cleaning apparatus characterized by: The drive structure comprises the drive structure of claim 4.

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