Walking motor oil seal device of swimming pool cleaning robot

Abstract

The embodiment of the utility model provides a walking motor oil seal device of a swimming pool cleaning robot, and the walking motor oil seal device comprises a sealing support, a sealing ring, a driving motor, a driving motor and a driving motor, an output shaft of the motor penetrates through the central hole to output power, and double-layer oil seal devices which are connected in series are arranged between the central hole and the output shaft; the number of the sealing grooves is at least two, the sealing rings are arranged on the sealing grooves, and the outer side of the sealing support is installed on the sealing fixing base through the sealing rings. Through the scheme of the embodiment of the invention, water can be prevented from entering the motor cabin through the motor output shaft.

Description

Technical Field

[0001] This application relates to the field of pool cleaning robot technology, specifically to a walking motor oil seal device for a pool cleaning robot. Background Technology

[0002] Since pool cleaning robots frequently operate in water, their motor output shafts are in direct contact with the external environment. If the seal is not tight, water and dirt can easily enter the motor compartment, leading to motor damage and equipment malfunction. Therefore, solving this sealing problem is crucial to ensuring the robot's reliability and stability. Summary of the Invention

[0003] In view of this, the present disclosure provides a walking motor oil seal device for a pool cleaning robot, which at least partially solves the problems existing in the prior art.

[0004] This application discloses a walking motor oil seal device for a pool cleaning robot, comprising:

[0005] The sealing bracket has a central hole in the middle and a sealing groove on the outside;

[0006] The motor output shaft passes through the central hole to output power, and a double-layer oil seal device connected in series between the central hole and the output shaft is provided; and

[0007] The sealing groove is provided with at least two, and the sealing ring is provided on the sealing groove, and the outer side of the sealing bracket is installed on the sealing fixing seat via the sealing ring.

[0008] Preferably, the series-connected double-layer oil seal device is disposed at one end of the central hole.

[0009] Preferably, at least two of the sealing grooves are respectively disposed at both ends of the outer side of the sealing bracket.

[0010] Preferably, grease is applied between the plurality of sealing grooves.

[0011] Preferably, a sealing cover is provided on one side of the sealing bracket, and the sealing cover extends beyond the sealing ring to form a sealing structure with the sealing fixing seat.

[0012] Preferably, the sealing cover is provided with symmetrical protruding fixing parts, the range of which extends beyond the range of the sealing cover and is fixedly connected to the sealing fixing seat by screws.

[0013] Preferably, the sealing cap has a recessed portion at a position corresponding to the sealing groove to reduce the thickness of the sealing cap at that position.

[0014] This disclosure provides a walking motor oil seal device for a swimming pool cleaning robot. The swimming pool cleaning robot includes a double-layer shell, a flow channel structure, a filter structure, a drainage device, a drive mechanism, a walking mechanism, and a cleaning brush. The double-layer shell includes an internal water channel cavity and a shell interlayer between the two layers. The flow channel structure includes a water inlet at the bottom of the double-layer shell, which communicates with the filter structure. The drainage device provides negative pressure to discharge filtered water through an outlet. The drive mechanism provides driving force to drive the walking mechanism and the cleaning brush. The walking motor oil seal device includes a sealing bracket with a central hole in the middle and a sealing groove on the outer side. A motor output shaft passes through the central hole to output power. A double-layer oil seal device is connected in series between the central hole and the output shaft. At least two sealing grooves are provided, and sealing rings are disposed on the sealing grooves. The outer side of the sealing bracket is mounted to a sealing fixing seat via the sealing rings. This disclosure solves the problem of effectively preventing water from entering the motor compartment via the motor output shaft. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the exemplary embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of the pool cleaning robot of this application;

[0017] Figure 2 This is a schematic diagram of the structure of the walking motor oil seal device of this application;

[0018] Figure 3 This is a schematic diagram of the structure of the walking motor oil seal device of this application.

[0019] In the diagram: 100, Pool cleaning robot; 110, Shell; 120, Flow channel structure; 130, Filter structure; 140, Drainage device; 150, Drive mechanism; 160, Walking mechanism; 170, Cleaning brush; 1, Sealing bracket; 2, Motor output shaft; 11, Center hole; 12, Sealing groove; 3, Double-layer oil seal device; 4, Sealing ring; 5, Sealing fixing seat; 13, Sealing cover; 14, Protruding fixing part; 15, Recessed part Detailed Implementation

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0021] First, refer to Figure 1 This describes the overall structure of the pool cleaning robot 100 of this application. For example... Figure 1 As shown, the pool cleaning robot of this application includes a shell 110, a flow channel structure 120, a filter structure 130, a drainage device 140, a drive mechanism 150, a walking mechanism 160, and a cleaning brush 170.

[0022] The housing 110 is the main structure of the pool cleaning robot, and its interior is provided with a flow channel structure 120, which is a water flow channel. A filter structure 130 is installed within the flow channel structure 120 to filter the water flowing through it. A drainage device 140 is also installed within the flow channel structure 120 and provides power to discharge the filtered water from the flow channel structure 120, thereby filtering the pool water. The pool cleaning robot of this application is equipped with a cleaning brush 170, which can rotate to clean the pool bottom or pool walls. The drive mechanism 150 drives the walking mechanism 160 and the cleaning brush 170 to clean the pool during movement.

[0023] In this application, the housing 110 may be made of plastic and have an internal cavity to accommodate a filter structure 130 such as a filter screen. Impurities cleaned by the cleaning brush 170 enter the flow channel structure 120 through an inlet, for example, at the bottom of the pool cleaning robot, and are then filtered by the filter screen. The filtered water is discharged from the top of the pool cleaning robot 100 by a drainage device 140 such as a spiral mechanism, while the impurities are left in the filter screen to achieve the cleaning operation of the pool.

[0024] Next, refer to Figure 2 This application describes a walking motor oil seal device for a pool cleaning robot, forming an example of a motor as a drive mechanism 150, and includes a sealing bracket 1, a double-layer oil seal device 3, a sealing ring 4, and a sealing fixing seat 5.

[0025] The sealing bracket 1 is the main support of the oil seal device, designed with a central hole 11 and sealing grooves 12. The central hole 11 penetrates the middle part of the sealing bracket 1, allowing the motor output shaft 2 to pass through and output power. Multiple sealing grooves 12 are provided on the outer side of the sealing bracket 1 for installing sealing rings 4. This design aims to enhance the overall sealing performance of the device and prevent external liquids from seeping into the motor.

[0026] The motor output shaft 2 is the core transmission component of the motor, responsible for transmitting the rotational motion generated by the motor to the traveling mechanism and the cleaning brush. To ensure that water is not introduced into the motor output shaft 2 during operation, a double-layer oil seal device 3 is installed between the center hole 11 and the motor output shaft 2. The double-layer oil seal device 3 consists of two oil seals connected in series, each of which effectively prevents water penetration. This double-layer oil seal design not only increases the sealing effect but also provides additional protection in case one of the oil seals fails.

[0027] The sealing ring 4 is installed in the sealing groove 12 of the sealing bracket 1, further improving the overall sealing performance of the device. The number of sealing grooves 12 can be determined depending on the specific situation, but it is generally recommended to provide at least two sealing grooves 12, with one sealing ring 4 installed in each groove. The function of the sealing ring 4 is to form a tight contact between the sealing bracket 1 and the sealing fixing seat 5, ensuring that no moisture will seep in through gaps in high humidity environments. In this way, the device can maintain a good sealing effect even in harsh external environments.

[0028] The sealing bracket 5 is used to fix and support the sealing support 1, allowing the sealing support 1 to be securely installed in the corresponding position on the motor. The sealing bracket 5 is typically connected to other components of the pool cleaning robot, such as the motor housing or other support structures, to ensure the stability and reliability of the entire device. The design of the sealing bracket 5 should ensure that the sealing support 1 can be correctly positioned, while ensuring that the sealing ring 4 can tightly adhere to the contact surface between the sealing support 1 and the mounting bracket under pressure.

[0029] Through the aforementioned technical means, this invention effectively prevents water from entering the motor compartment via the motor output shaft 2. The double-layer oil seal device 3 provides two lines of defense between the central hole 11 and the motor output shaft 2, significantly reducing the possibility of moisture infiltration. Furthermore, the use of multiple sealing rings 4 further enhances the sealing effect, ensuring that the motor compartment remains dry even during long-term operation and in high-humidity environments, thereby extending the service life of the equipment and improving overall reliability and operating efficiency.

[0030] In one embodiment, the double-layer oil seal device 3 of the walking motor oil seal device of the swimming pool cleaning robot of this application is connected in series and disposed at one end of the central hole 11. More specifically, in this application, it is disposed on the side closer to the motor. Due to the small eccentricity on this side, better sealing can be achieved by the oil seal device. The double-layer oil seal device 3 is composed of its own two sealing rings 4, which respectively perform the functions of the first and second sealing, ensuring the cleanliness and dryness of the motor interior. The outer diameter of the double-layer oil seal device 3 matches the inner diameter of the central hole 11, allowing it to be stably installed in the central hole 11. This design not only improves the sealing performance but also effectively prevents external contaminants from entering the motor interior.

[0031] For example, the double-layer oil seal device 3 includes a first oil seal and a second oil seal, which are connected in series to form a complete sealing system. Both the first and second oil seals are located at one end of the central hole 11, with the first oil seal adjacent to the inlet of the central hole 11 and the second oil seal adjacent to the inner cavity of the motor. The advantage of this design is that when external contaminants enter through the central hole 11, the first oil seal provides initial blocking; even if trace amounts of impurities penetrate the first oil seal, the second oil seal provides a secondary seal, further ensuring the cleanliness of the motor's interior.

[0032] For example, the double-layer oil seal device 3 can be inserted into the central hole 11 first, with one end flush with the inlet of the central hole 11. Next, a special tool is used to fix the double-layer oil seal device 3 in the central hole 11, ensuring a tight fit without any looseness. Finally, the gap between the double-layer oil seal device 3 and the central hole 11 is checked to ensure that the fit accuracy meets the requirements, thus guaranteeing its sealing effect.

[0033] In one embodiment, in the oil sealing device for the walking motor of a pool cleaning robot according to this application, at least two sealing grooves 12 are respectively disposed at both ends of the outer side of the sealing bracket 1. The sealing bracket 1, as the main support structure of the entire oil sealing device, plays a crucial role in fixing and sealing. The specific positions of the at least two sealing grooves 12 are set at both ends of the outer side of the sealing bracket 1, so that the sealing grooves 12 can effectively surround and seal the moving parts of the walking motor, preventing water and other impurities from entering the motor, while ensuring the normal operation of the motor. The design and arrangement of the sealing grooves 12 need to consider the motor's movement trajectory and mechanical strength to ensure that no deformation or damage occurs during long-term operation.

[0034] Specifically, for example, corresponding grooves can be pre-machined at both ends of the sealing bracket 1. The shape and size of these grooves match the sealing element (such as a rubber sealing ring 4 or a sealing ring made of other materials) to ensure that the sealing element can be firmly embedded in the sealing groove 12. In addition, to further enhance the sealing performance, the sealing groove 12 can also be provided with additional auxiliary structures, such as snap-fit ​​or locking screws, to ensure that the sealing element can fit tightly against the sealing bracket 1 during installation, thereby achieving a good sealing effect.

[0035] In one embodiment, grease is applied between multiple sealing grooves 12 of the walking motor oil seal device of a pool cleaning robot according to this application. Applying grease between the multiple sealing grooves 12 enhances the overall sealing performance of the oil seal device. The design of the sealing grooves 12 ensures that during operation, even if certain parts are affected by pressure or temperature changes, the grease remains evenly distributed within the grooves, thereby effectively preventing liquid or dust from entering the motor.

[0036] For example, in one specific technical implementation, multiple sealing grooves 12 are arranged parallel to each other along the motor axis, with equal spacing between each groove 12 to ensure that the grease is evenly distributed throughout the oil seal area. To ensure effective grease distribution and long-term retention, specialized coating tools or processes can be used during installation to ensure consistent and adequate grease coverage in each sealing groove 12. Simultaneously, the interior of the sealing groove 12 can be designed with micro-protrusions and dents to improve grease adhesion and stability.

[0037] In one embodiment, Figure 3 As shown, a sealing cover 13 is provided on one side of the sealing bracket 1 of the oil seal device for the walking motor of a pool cleaning robot according to this application. The sealing cover 13 extends beyond the sealing ring 4 and forms a sealing structure with the sealing fixing seat 5, thereby ensuring the sealing performance of the device in water. The sealing bracket 1 and the sealing cover 13 are connected together by mechanical fasteners such as screws or buckles or integral molding, so that the entire device can be firmly installed on the walking motor.

[0038] For example, in one specific embodiment, the sealing bracket 1 and the sealing cover 13 are integrally formed to ensure a good seal even under high-pressure water conditions. Furthermore, the edge of the sealing cover 13, i.e., the part that contacts the sealing mounting base 5, is designed to be slightly concave to further enhance the sealing effect. The sealing mounting base 5 is then fixed to the motor housing by an embedded method, ensuring the stability and reliability of the overall structure.

[0039] In one embodiment, the sealing cover 13 of the walking motor oil seal device of a pool cleaning robot of this application is provided with symmetrical protruding fixing parts 14. The range of the protruding fixing parts 14 extends beyond the range of the sealing cover 13 and is fixedly connected to the sealing fixing seat 5 by screws. This design ensures that the sealing cover 13 is more stable and reliable during installation. The symmetrical distribution of the protruding fixing parts 14 not only provides balanced fixing points, but also increases the rigidity of the overall structure, avoiding deformation or loosening caused by uneven force.

[0040] Specifically, the sealing cover 13 is a circular structure with a flat top surface and outer peripheral edge, and the protruding fixing parts 14 are two symmetrical protrusions extending outward from the edge of the sealing cover 13. These two protruding fixing parts 14 are located on opposite sides of the edge of the sealing cover 13, ensuring even force distribution during installation. The sealing fixing seat 5 is a planar structure with fixing holes that correspond to the protruding fixing parts 14 on the sealing cover 13. During installation, the protruding fixing parts 14 on the sealing cover 13 are aligned with the fixing holes on the sealing fixing seat 5, and then they are fastened together with screws. In this way, the sealing cover 13 is firmly fixed to the sealing fixing seat 5, ensuring the overall sealing and stability of the device.

[0041] For example, the sealing cap 13 and the sealing base 5 can be manufactured using high-precision mold processing methods to ensure that their dimensional and shape accuracy meets the design requirements. Then, screws are used to tightly connect the protruding fixing part 14 on the sealing cap 13 to the fixing hole on the sealing base 5.

[0042] In one embodiment, the sealing cover 13 of the walking motor oil seal device of a pool cleaning robot of this application has a recess 15 corresponding to the sealing groove 12. The recess 15 is used to reduce the thickness of the sealing groove 12. This design optimizes the sealing performance of the sealing groove 12 without reducing the overall structural strength. The sealing cover 13 is installed on the end face of the motor housing and cooperates with the motor shaft to form a sealed space to prevent moisture from entering the motor.

[0043] Specifically, the sealing groove 12 is located on the inner side of the sealing cover 13, and the recess 15 is located on the corresponding position on the outer side of the sealing cover 13. The two work together to reduce the thickness of the sealing cover 13 at this position, which can reduce the shrinkage of this part during injection molding, thereby improving the overall quality.

[0044] In actual operation, the motor output shaft 2 of the swimming pool cleaning robot passes through the central hole 11 of the sealing bracket 1 and outputs power from this hole, thereby driving the walking mechanism and cleaning brush to work. At this time, the double-layer oil seal device 3 located between the central hole 11 and the motor output shaft 2 begins to function. It consists of two sealing components connected in series, which can effectively prevent lubricating oil from leaking from the inside into the water environment, and also prevent external sewage or foreign objects from entering the motor, ensuring the stability and safety of the motor operation. At the same time, at least two sealing grooves 12 are provided on the outside of the sealing bracket 1, and a sealing ring 4 is installed in each groove. These sealing rings 4 further enhance the sealing effect and prevent water from seeping in along the gap between the sealing bracket 1 and the fixed seat. When the robot's drive mechanism operates and generates the necessary power to move the entire device and clean the pool wall, the above-mentioned multi-sealing structure always maintains a good sealing state. Even under high-speed operation or frequent turning, no leakage will occur, thus ensuring the long life and reliable performance of the walking motor and its related components.

[0045] The above description is the preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this invention, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A walking motor oil seal device for a swimming pool cleaning robot, characterized in that, The travel motor oil seal device includes: A sealing bracket (1) has a central hole (11) in the middle part and a sealing groove (12) on the outside. The motor output shaft (2) passes through the central hole (11) to output power, and a double-layer oil seal device (3) connected in series between the central hole (11) and the output shaft is provided; and The sealing groove (12) is provided with at least two, and the sealing ring (4) is provided on the sealing groove (12), and the outer side of the sealing bracket (1) is installed on the sealing fixing seat (5) via the sealing ring (4).

2. The oil seal device for a walking motor according to claim 1, characterized in that, The series-connected double-layer oil seal device (3) is located at one end of the central hole (11).

3. The oil seal device for a walking motor according to claim 2, characterized in that, The series-connected double-layer oil seal device (3) is located on the side of the central hole (11) near the motor.

4. The oil seal device for a walking motor according to claim 1, characterized in that, At least two of the sealing grooves (12) are respectively disposed at the outer ends of the sealing bracket (1).

5. The oil seal device for a walking motor according to claim 1, characterized in that, Grease is applied between the plurality of the sealing grooves (12).

6. The oil seal device for a walking motor according to claim 1, characterized in that, A sealing cover (13) is provided on one side of the sealing bracket (1), and the sealing cover (13) extends beyond the range of the sealing ring (4) to form a sealing structure with the sealing fixing seat (5).

7. The oil seal device for a walking motor according to claim 6, characterized in that, The sealing cover (13) is provided with symmetrical protruding fixing parts (14), the range of which exceeds the range of the sealing cover (13) and is fixedly connected to the sealing fixing seat (5) by screws.

8. The oil seal device for a walking motor according to claim 6, characterized in that, A recess (15) is provided on the sealing cap (13) at a position corresponding to the sealing groove (12) to reduce the thickness of the sealing cap (13) at that position.

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