Self-cleaning mechanism of washing machine

Abstract

A cleaning brush is arranged between an inner barrel and an outer barrel of the washing machine, a plurality of barrel bottom brushes are evenly arranged on a barrel brush driving wheel and driven by a barrel brush motor, and the rear ends of a plurality of barrel wall brushes are connected with the corresponding barrel bottom brushes respectively. The front end of the barrel wall brush allows the barrel wall brush to move axially in the mode that the brush shaft is inserted into the guide ring, a guide ring bearing is arranged between the guide ring and the outer barrel, and the guide ring and the barrel wall brush rotate along with the barrel bottom brush. A cylinder brush driving wheel is sleeved on a shaft sleeve of an inner cylinder driving mechanism, a cam ring provided with a front gear, a middle gear and a rear gear is fixedly sleeved on the cylinder brush driving wheel, an ejector rod and a cam bearing are arranged at positions facilitating fixation, a spring is arranged between the cylinder brush driving wheel and the baffle ring of the shaft sleeve, and the cam ring is in contact connection with the cam bearing through elastic force of the spring. When the cleaning brush rotates, a front axial reciprocating motion track, a middle axial reciprocating motion track and a rear axial reciprocating motion track are formed at the same time. The cleaning device has the advantages of all-directional cleaning of the washing machine and good cleaning effect.

Description

Technical Field

[0001] The utility model relates to the technical field of washing machines, in particular to a self-cleaning mechanism of a washing machine. Background Art

[0002] After using the washing machine for a period of time, a lot of dirt will remain inside the washing machine, which is easy to breed bacteria. At present, the mainstream self-cleaning methods of washing machines are nothing more than water flushing, heating and ultrasonic sterilization. It is well known that water flushing has no effect on sterilization. The heating cleaning method has no effect on dirt. Only a small number of bacteria can be killed with extremely high temperatures. However, energy loss at extremely high temperatures is not considered, and the high temperature causes irreversible damage to the seals of the washing machine itself, seriously affecting the life of the washing machine. The ultrasonic cleaning method can only kill a small number of bacteria and has little effect on cleaning dirt. Other cleaning methods such as ultraviolet rays and photodynamic silver are not much different from ultrasonic cleaning methods. If you want to completely clean the washing machine, you must completely disassemble the washing machine, which is difficult for non-professionals to operate. Asking a professional master to clean and maintain the washing machine is time-consuming, labor-intensive, and expensive.

[0003] By searching the patents of the existing washing machine related cleaning devices, for example, Chinese patent CN220224648U discloses a washing machine device with a self-cleaning impeller assembly. When the washing machine is working, the driving motor rotates and the driving shaft rotates, so that the impeller in the inner barrel rotates and stirs. At this time, the driving shaft rotates to rotate the first brush rod and the second brush rod between the outer barrel and the inner barrel. The first brush rod and the second brush rod rotate between the outer barrel and the inner barrel, so that the first bristles and the second bristles on both sides clean the inner wall of the outer barrel and the outer wall of the inner barrel respectively, so that during the washing process, dirt can be prevented from adhering to the outer wall of the inner barrel and the inner wall of the outer barrel, solving the problem that a large amount of residual dirt and harmful bacteria will accumulate in the inner and outer barrel interlayer of the washing machine. In other words, the existing washing machine related cleaning device only provides a technical solution for cleaning the inner wall of the outer barrel and the outer wall of the inner barrel of the washing machine, and there is no way to clean the structural sanitary dead corners of the washing machine, such as: the connection between the inner barrel of the impeller of the impeller and the barrel seat of the impeller washing machine, the gap between the reinforcing ribs under the impeller, that is, the connection between the bottom tripod of the drum washing machine and the bottom of the barrel, and these dead corners are the places that need to be cleaned the most. If you want to thoroughly clean the washing machine, you still need to disassemble it to clean it, which is only a temporary solution and not a fundamental solution. Summary of the invention

[0004] The utility model aims to solve the above problems and provide a washing machine self-cleaning mechanism which can clean the washing machine in all directions and has good cleaning effect.

[0005] The purpose of the utility model is achieved in this way. A self-cleaning mechanism of a washing machine is provided between an inner drum and an outer drum of the washing machine, wherein the cleaning brush comprises a plurality of drum bottom brushes and a plurality of drum wall brushes, the plurality of drum bottom brushes are evenly arranged on a drum brush driving wheel and driven by a drum brush motor, the rear ends of the plurality of drum wall brushes are respectively connected with the corresponding drum bottom brushes, the front end of the drum wall brush is inserted into a guide ring by a brush shaft to allow the drum wall brush to move axially, a guide ring bearing is provided between the guide ring and the outer drum, so that the guide ring and the drum wall brush rotate together with the drum bottom brush; the drum brush driving wheel is sleeved on the shaft sleeve of the inner drum driving mechanism, a cam ring is sleeved and fixed on the drum brush driving wheel, the cam ring is provided with three stop parts, namely, a front stop, a middle stop and a rear stop, a push rod and a cam bearing are provided at a position conducive to fixing the washing machine, a spring is provided between the drum brush driving wheel and the stop ring of the shaft sleeve, the cam ring is contacted and connected with the cam bearing by the spring elastic force, so that the cleaning brush simultaneously forms three axial reciprocating motion trajectories, namely, front, middle and rear, when rotating.

[0006] The utility model has an inner gear ring fixed on the outer cylinder, a gear meshing with the inner gear ring fixedly mounted on the rear end of the cylinder wall brush, and the rear end of the cylinder wall brush is movably connected with the cylinder bottom brush, so that when the cleaning brush rotates around the cylinder, the cylinder wall brush simultaneously performs self-rotation motion, thereby forming a cylinder wall cleaning enhancement structure; through the meshing structure at the rear end of the cylinder wall brush and the guiding structure at the front end of the cylinder wall brush, a front and rear balanced structure for cylinder wall cleaning is formed.

[0007] The utility model has brush heads on both sides of the barrel bottom brush and the barrel wall brush. When the middle stop of the cam ring is in contact with the cam bearing, the barrel bottom brush and the barrel wall brush are in a neutral suspended brush stop structure; when the front stop and the rear stop of the cam ring are respectively in contact with the cam bearing, the brush head of the barrel bottom brush cleans the inner bottom wall of the outer barrel and the outer bottom wall of the inner barrel respectively; the brush head of the barrel wall brush cleans the outer wall of the inner barrel and the inner wall of the outer barrel through the centrifugal force of the brush.

[0008] In the utility model, the guide ring is mounted on the guide ring bearing through the groove on the outer cylindrical surface of the guide ring, the guide ring bearing is installed on the guide ring shaft, and the guide ring shaft is fixed on the outer cylinder.

[0009] The utility model has an inner cylinder provided with a detachable inspection plate, and a guide ring is divided into a plurality of sections which are connected by clamping plates to form an easy-to-maintain structure.

[0010] In the utility model, the inner gear ring is arranged in a plurality of sections, which are fixedly installed through the fixing holes on the outer cylinder, thus forming an easy-to-maintain structure.

[0011] The utility model comprises an inner cylinder with a reinforcing part for a built-in tripod and a sealing plate for making the bottom surface of the inner cylinder flat, and the sealing plate covers and seals the tripod.

[0012] In the utility model, the outer cylinder is arranged to be sealed and connected with a front outer cylinder and a rear outer cylinder.

[0013] The utility model provides a sealing shoulder on the inspection plate, which is sealed with the bottom and wall of the inner cylinder at the inspection port position through the sealing shoulder.

[0014] In the utility model, the brush heads of the barrel bottom brush and the barrel wall brush are both silicone brushes, which of course include but are not limited to silicone brushes.

[0015] The utility model has the following positive effects:

[0016] 1) The barrel brush driving wheel is provided with cam rings with three stop parts, namely the front stop, the middle stop and the rear stop, so that the cleaning brush forms three axial reciprocating motion tracks at the same time when rotating, and cleans the barrel wall and the barrel bottom in all directions at the same time, which is different from the prior art that only cleans the barrel wall;

[0017] 2) Different from the prior art which only cleans by rotation, the utility model cleans by rotation plus gradual axial reciprocating motion, which has good cleaning effect;

[0018] 3) When the cleaning brush of the utility model rotates around the barrel, the barrel wall brush also rotates at the same time, which strengthens the cleaning of the barrel wall and solves the problem of easy wear and damage of the barrel wall brush in the prior art;

[0019] 4) The bottom of the inner cylinder is covered and sealed to facilitate cleaning and maintenance for consumers from a production perspective.

[0020] 5) Inspection ports and inspection plates are set on the inner barrel to consider cleaning and maintenance issues from the front of the barrel, which is convenient for consumers to maintain by themselves. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model;

[0022] Figure 2 yes Figure 1 A schematic diagram of a three-dimensional structure of components of an embodiment;

[0023] Figure 3 yes Figure 1 A partially cutaway three-dimensional structural schematic diagram of an embodiment;

[0024] Figure 4 yes Figure 1 Schematic diagram of the three-dimensional structure after the self-cleaning mechanism and the inner cylinder are assembled in the embodiment;

[0025] Figure 5 yes Figure 4 A schematic diagram of a three-dimensional structure in which the self-cleaning mechanism is separated from the inner cylinder;

[0026] Figure 6 yes Figure 4 Schematic diagram of the three-dimensional structure of the main control components of the self-cleaning mechanism;

[0027] Figure 7 yes Figure 6 Structural diagram of the main control components of the self-cleaning mechanism;

[0028] Figure 8 yes Figure 1 A schematic diagram of the three-dimensional structure of the sub-assembly of the inner cylinder of the embodiment.

[0029] In the figure, 1. bottom brush of cylinder; 2. wall brush of cylinder; 3. driving wheel of cylinder brush; 4. motor of cylinder brush; 5. brush shaft; 6. guide ring; 7. guide ring bearing; 8. driving mechanism of inner cylinder; 9. bushing; 10. cam ring; 11. front block; 12. middle block; 13. rear block; 14. push rod; 15. cam bearing; 16. block ring; 17. spring; 18. inner gear ring; 19. gear; 20. brush head; 21. groove; 22. guide ring shaft; 23. inspection plate; 24. clamping plate; 25. tripod; 26. sealing plate; 27. front outer cylinder; 28. rear outer cylinder; 29. ​​sealing shoulder; 30. inspection port; 31. inner cylinder. Implementation

[0030] Reference Figures 1 to 8 The present embodiment is a self-cleaning mechanism of a washing machine. A cleaning brush is arranged between an inner drum 31 and an outer drum of the washing machine. The cleaning brush comprises three bottom brushes 1 and three wall brushes 2. The three bottom brushes are evenly arranged on a brush driving wheel 3 and driven by a brush motor 4. The rear ends of the three wall brushes are respectively connected with the corresponding bottom brushes. The front end of the wall brush is inserted into a guide ring 6 through a brush shaft 5 to allow the wall brush to move axially. A guide ring bearing 7 is arranged between the guide ring and the outer drum, so that the guide ring and the wall brush rotate together with the bottom brush. The brush driving wheel is sleeved on a sleeve 9 of an inner drum driving mechanism 8. A cam ring 10 is sleeved and fixed on the brush driving wheel. The cam ring is provided with three stop parts, namely, a front stop 11, a middle stop 12 and a rear stop 13. A push rod 14 and a cam bearing 15 are arranged on the bottom side of the outer drum. A spring 17 is arranged between the brush driving wheel and the stop ring 16 of the sleeve. The cam ring is contacted and connected with the cam bearing by the spring elastic force, so that the cleaning brush simultaneously forms three axial reciprocating motion trajectories, namely, front, middle and rear, when rotating.

[0031] In the utility model, a push rod and a cam bearing are arranged on the bottom side of the outer drum, and can also be arranged at a fixed position on the washing machine body or other parts.

[0032] In the utility model, an inner gear ring 18 is fixed to the outer cylinder, a gear 19 meshing with the inner gear ring is fixedly installed at the rear end of the cylinder wall brush, and the rear end of the cylinder wall brush is movably connected with the cylinder bottom brush, so that when the cleaning brush rotates around the cylinder, the cylinder wall brush simultaneously rotates, forming a cylinder wall cleaning enhancement structure; through the meshing structure at the rear end of the cylinder wall brush and the guiding structure at the front end of the cylinder wall brush, a front and rear balance structure for cylinder wall cleaning is formed.

[0033] In the utility model, brush heads 20 are arranged on both sides of the barrel bottom brush and the barrel wall brush. When the middle block of the cam ring is in contact with the cam bearing, the barrel bottom brush and the barrel wall brush are in a neutral suspended brush stop structure; when the front block and the rear block of the cam ring are respectively in contact with the cam bearing, the brush head of the barrel bottom brush cleans the inner bottom wall of the outer barrel and the outer bottom wall of the inner barrel respectively; the brush head of the barrel wall brush cleans the outer wall of the inner barrel and the inner wall of the outer barrel through the centrifugal force of the brush.

[0034] In the utility model, the guide ring is mounted on the guide ring bearing through the groove 21 on the outer cylindrical surface of the guide ring, the guide ring bearing is installed on the guide ring shaft 22, and the guide ring shaft is fixed on the outer cylinder.

[0035] In the utility model, the inner cylinder is provided with a detachable inspection plate 23, the guide ring is set in three sections and connected by a clamping plate 24 to form an easy maintenance structure; the inner gear ring is set in three sections and fixedly installed through the fixing holes on the outer cylinder to form an easy maintenance structure.

[0036] The utility model comprises an inner tube with a reinforcing part of a built-in tripod 25 and a sealing plate 26 for making the bottom surface of the inner tube flat, wherein the sealing plate covers and seals the tripod; and an inspection plate is provided with a sealing shoulder 29, through which the bottom and the wall of the tube at the inspection port 30 of the inner tube are sealed.

[0037] In the utility model, the outer cylinder is provided with a front outer cylinder 27 and a rear outer cylinder 28 which are sealed and connected, and the sealing adopts conventional technology.

[0038] The utility model has a cam ring on the cylinder brush driving wheel and is completely fixed with the cam ring. After the two are fixed, they are sleeved on the shaft sleeve and can perform rotational motion and axial movement at the same time. The rotational motion is driven by the cylinder brush motor through the transmission belt, and the axial movement is driven by the cam bearing, the spring and the cam track along the cam ring. The cam bearing is installed on the push rod, the push rod is fixed on the rear outer cylinder, the cam ring has three tracks of front, middle and rear, and the spring arranged between the cylinder brush driving wheel and the retaining ring of the shaft sleeve forces the cam bearing to contact with the three retaining parts of the cam ring at all times. When the cylinder brush driving wheel rotates, since it is fixed with the cam ring, the cylinder brush driving wheel also performs axial reciprocating motion of front, middle and rear.

[0039] The utility model has three blocking parts of the cam ring so that the drum brush driving wheel has three positions: front, middle and rear. When the drum brush driving wheel is in the front position, the drum bottom brush contacts and cleans the outer bottom surface of the inner drum and the sealing plate; when the drum brush driving wheel is in the middle position, the drum bottom brush is suspended in the air, at this time, the drum brush motor stops, and normal washing work is not affected; when the drum brush driving wheel is in the rear position, the drum bottom brush contacts and cleans the inner bottom surface of the outer drum; while the drum brush driving wheel is moving forward, middle and rear, it also drives the drum wall brush to move forward, middle and rear, and under the action of the rotating centrifugal force, the drum wall brush cleans the outer wall of the inner drum and the inner wall of the outer drum at the same time; when the drum brush motor stops, the drum wall brush is stationary without centrifugal force and is suspended in the air, and does not contact the inner drum and the outer drum, thereby not affecting the normal washing work.

[0040] In the utility model, three cylinder bottom brushes are evenly arranged on the cylinder brush driving wheel and perform axial movement and rotational movement therewith; one end of the three cylinder wall brushes is arranged on one side of the guide ring, and the other end is arranged on the cylinder bottom brush; the cylinder wall brushes perform rotational movement together with the guide ring, and the cylinder wall brushes can also perform axial movement during the rotation.

[0041] In the utility model, the inner gear ring is fixedly installed on the rear outer cylinder through the fixing hole on the rear outer cylinder. In order to remove the inner gear ring from the inspection port of the inner cylinder for maintenance, the inner gear ring is divided into three sections, and the sections are connected into a whole through the fixing holes on the rear outer cylinder when installed; the cylinder wall brush is fixedly installed with a gear at the meshing position with the inner gear ring, and the gear meshes with the inner gear ring. When the cylinder wall brush rotates around the cylinder, the cylinder wall brush also performs self-rotation motion, thereby increasing the cleaning strength. When the cylinder wall brush does not need to rotate itself, it only needs to remove the gear and tighten the fixing screws of the cylinder wall brush.

[0042] In the utility model, the guide ring is mounted on the guide ring bearing through the groove on its outer cylindrical surface, the guide ring bearing is installed on the guide ring shaft, and the guide ring shaft is fixed on the front outer cylinder. In order to facilitate the removal from the inner cylinder at the inspection port, the guide ring is divided into three sections, and the sections are connected into a whole by clamping plates when installed.

[0043] The utility model has a sealing plate arranged at the bottom of the inner cylinder and covers the tripod, and is completely sealed with the two by welding, gluing or any other method to prevent sewage from entering the tripod, and makes the bottom surface flat, so that the cylinder bottom can be cleaned easily by a cylinder bottom brush.

[0044] In the utility model, although the drum wall brush and the drum bottom brush are not easy to accumulate dirt through high-speed rotation and water flow when cleaning the front outer drum, the rear outer drum and the inner drum, in order to facilitate inspection, an inspection plate is provided on the inner drum, and its size matches the inspection port. When working, the inspection plate is sealed with the inspection port on the inner drum. When cleaning or overhauling, the inspection plate can be completely removed, and the drum wall brush, the drum bottom brush, the front outer drum, the rear outer drum and the inner drum can be inspected and further cleaned to achieve the disassembly cleaning effect.

[0045] The utility model has an inspection plate and an inspection port side wall seal of the inner cylinder, and the cylinder arm brush, guide ring, guide ring shaft, guide ring bearing and clamping plate can be removed when disassembling; the inspection plate and the bottom of the inner cylinder are sealed, and the cylinder bottom brush and inner gear ring can be removed when disassembling. All accessories that cannot be disassembled through the inspection port have no gaps, or the gaps are sealed.

[0046] In the present utility model, the inner cylinder and the outer cylinder are also called inner barrel and outer barrel.

Claims

1. A self-cleaning mechanism for a washing machine, wherein a cleaning brush is provided between an inner drum (31) and an outer drum of the washing machine, wherein: The cleaning brush comprises a plurality of cylinder bottom brushes (1) and a plurality of cylinder wall brushes (2), wherein the plurality of cylinder bottom brushes are evenly arranged on a cylinder brush driving wheel (3) and driven by a cylinder brush motor (4), wherein the rear ends of the plurality of cylinder wall brushes are respectively connected to corresponding cylinder bottom brushes, and the front ends of the cylinder wall brushes are inserted into a guide ring (6) via a brush shaft (5) to allow the cylinder wall brushes to move axially, and a guide ring bearing (7) is provided between the guide ring and the outer cylinder, so that the guide ring and the cylinder wall brushes rotate together with the cylinder bottom brush; The cylinder brush driving wheel is sleeved on the shaft sleeve (9) of the inner cylinder driving mechanism (8), and a cam ring (10) is sleeved and fixed on the cylinder brush driving wheel. The cam ring is provided with three stop parts, namely a front stop (11), a middle stop (12), and a rear stop (13). A push rod (14) and a cam bearing (15) are provided at a position convenient for fixing the washing machine. A spring (17) is provided between the cylinder brush driving wheel and the stop ring (16) of the shaft sleeve. The cam ring is brought into contact with the cam bearing through the elastic force of the spring, so that the cleaning brush simultaneously forms three axial reciprocating motion tracks, namely, front, middle, and rear, when rotating.

2. The self-cleaning mechanism of the washing machine according to claim 1, characterized in that: The outer cylinder is fixed with an inner gear ring (18), and a gear (19) meshing with the inner gear ring is fixedly mounted at the rear end of the cylinder wall brush. The rear end of the cylinder wall brush is movably connected to the cylinder bottom brush, so that when the cleaning brush rotates around the cylinder, the cylinder wall brush simultaneously performs self-rotation motion, thereby forming a cylinder wall cleaning enhancement structure; and a front and rear balance structure for cylinder wall cleaning is formed through the meshing structure at the rear end of the cylinder wall brush and the guiding structure at the front end of the cylinder wall brush.

3. The self-cleaning mechanism of the washing machine according to claim 1 or 2, characterized in that: The barrel bottom brush and the barrel wall brush are both provided with brush heads (20) on both sides. When the middle stop of the cam ring is in contact with the cam bearing, the barrel bottom brush and the barrel wall brush are in a mid-position suspended brush stop structure. When the front stop and the rear stop of the cam ring are in contact with the cam bearing respectively, the brush head of the barrel bottom brush cleans the inner bottom wall of the outer barrel and the outer bottom wall of the inner barrel respectively. The brush head of the barrel wall brush cleans the outer wall of the inner barrel and the inner wall of the outer barrel by the centrifugal force of the brush.

4. The self-cleaning mechanism of the washing machine according to claim 3, characterized in that: The guide ring is mounted on a guide ring bearing via a groove (21) on its outer cylindrical surface; the guide ring bearing is mounted on a guide ring shaft (22); and the guide ring shaft is fixed on the outer cylinder.

5. The self-cleaning mechanism of the washing machine according to claim 4, characterized in that: The inner cylinder is provided with a detachable inspection plate (23), and the guide ring is provided with a plurality of sections which are connected by a clamping plate (24), thereby forming an easy-to-maintain structure.

6. The self-cleaning mechanism of the washing machine according to claim 2, characterized in that: The inner gear ring is arranged in several sections and is fixedly installed through fixing holes on the outer cylinder, thereby forming an easy-to-maintain structure.

7. The self-cleaning mechanism of the washing machine according to claim 6, characterized in that: The inner cylinder is provided with a reinforcement portion for a built-in tripod (25) and a sealing plate (26) for making the bottom surface of the inner cylinder flat, and the sealing plate covers and seals the tripod.

8. The self-cleaning mechanism of the washing machine according to claim 7, characterized in that: The outer cylinder is provided with a front outer cylinder (27) and a rear outer cylinder (28) which are sealed and connected.

9. The self-cleaning mechanism of the washing machine according to claim 5, characterized in that: The inspection plate is provided with a sealing shoulder (29) which is sealed with the bottom and wall of the inner cylinder at the inspection opening (30).

10. The self-cleaning mechanism of the washing machine according to claim 9, characterized in that: The brush heads of the cylinder bottom brush and the cylinder wall brush are both made of silicone brushes.

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