Water inlet structure of a drum-type washing machine

Abstract

The application discloses a water inlet structure of a drum washing machine, which comprises a supporting frame and a water inlet pipe, the water outlet end of the water inlet pipe is provided with a radially protruding water passing chamber, and further comprises a buffering structure, the water passing chamber is installed on the supporting frame through the buffering structure, the buffering structure realizes flexible connection between the supporting frame and the water passing chamber, the relative movement between the supporting frame and the water passing chamber can be realized, the deformation force of the outer drum can be buffered, the deformation force of the outer drum is avoided from being transmitted to the water passing chamber surrounded by the bearing seat and the water outlet adapter, and then the deformation of the bearing and the oil seal on the bearing seat is avoided, so that the noise and water leakage of the drum washing machine are avoided.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of household appliances, in particular, relates to a water inlet structure of a drum washing machine. BACKGROUND

[0002] In the prior art, the drum washing machine generally comprises an inner drum for containing clothes, an inner drum support and a motor, the inner drum is provided with an inner drum shaft at the bottom, the inner drum shaft extends along the front-rear direction of the inner drum, the outer part of the inner drum is provided with the inner drum support, the motor is arranged on the inner drum support, the inner drum shaft penetrates through the inner drum support and is connected with the motor, the motor drives the inner drum shaft to rotate, thereby driving the inner drum to rotate, so as to realize the tumble washing of the clothes by the inner drum; wherein the inner drum support comprises an outer drum for containing washing water, the inner drum is rotatably assembled in the outer drum, and a dewatering hole is arranged on the inner drum to enable the water in the outer drum to flow into the inner drum through the dewatering hole to soak the clothes in the inner drum, the water in the inner drum to flow out to the outer drum through the dewatering hole, and the water on the clothes in the inner drum to be discharged to the outer drum through the dewatering hole when the inner drum rotates at high speed, so as to achieve the purpose of washing the clothes.

[0003] In the existing drum washing machine, the inner drum shaft is hollow, the water inlet pipe is communicated with the inner drum shaft to realize the water inlet of the inner drum; in order to increase the stability of the motor on the inner drum support, a motor support frame is generally arranged on the inner drum support, the motor is clamped between the motor water inlet structure and the inner drum support, the motor support frame fastens the motor on the inner drum support, a bearing seat supporting the inner drum shaft is arranged on the motor support frame, and an axle hole allowing the inner drum shaft to penetrate through is arranged on the motor support frame and the bearing seat; the inner drum shaft is provided with a water inlet at one end in the axial direction, the water outlet of the water inlet pipe is provided with an internally hollow water outlet adapter communicated with the water inlet of the inner drum shaft, an opening allowing the inner drum shaft to be inserted is arranged on the water outlet adapter, the opening of the water outlet adapter faces the bearing seat, the water outlet adapter is buckled on the bearing seat, the inner drum shaft penetrating through the motor support frame and the bearing seat is inserted into the water outlet adapter through the opening of the water outlet adapter, so as to realize the communication between the water inlet of the inner drum shaft and the water outlet adapter; wherein the inner drum support comprises an outer drum, the motor support frame is arranged on the outer drum, the outer drum is easily deformed by external force, and at the same time the deformation force of the outer drum is transmitted to the bearing of the bearing seat and the oil seal through the motor support frame, thereby causing the deformation and damage of the bearing and the oil seal, and resulting in the problems of noise and water leakage of the drum washing machine. SUMMARY

[0004] The technical problem solved by the present application is to overcome the deficiencies in the prior art, and provide a water inlet structure of a drum washing machine, which is characterized in that a buffer structure is arranged between the motor support frame and the bearing seat, the buffer structure realizes flexible connection between the motor support frame and the bearing seat, the relative movement between the motor support frame and the bearing seat is allowed, the deformation force of the outer drum can be buffered, the deformation force of the outer drum is prevented from being transmitted to the bearing and the oil seal of the bearing seat, the deformation damage of the bearing seat and the oil seal is avoided, and the purpose of avoiding noise and water leakage of the drum washing machine is achieved.

[0005] To solve the above technical problems, the basic idea of the technical solution of the present application is:

[0006] The present application provides a water inlet structure of a drum washing machine, which comprises a support frame and a water inlet pipe, the water outlet end of the water inlet pipe is provided with a radially protruding water passing chamber, and further comprises a buffer structure, the water passing chamber is mounted on the support frame through the buffer structure.

[0007] Further, the water outlet end of the water inlet pipe is provided with a bearing seat and a water outlet adapter, the water outlet adapter is provided with an opening facing the bearing seat, the water outlet adapter is buckled on the bearing seat to form the water passing chamber with the bearing seat, the water outlet of the water inlet pipe is communicated with the water outlet adapter, the first part of the buffer structure is connected with the support frame, and the second part of the buffer structure is connected with the bearing seat.

[0008] Further, the support frame comprises a horizontally extending support portion, the top of the support seat is attached to the bottom of the bearing seat, and the first part of the buffer structure is a first buffer ring, which is clamped between the top of the support portion and the bottom of the bearing seat.

[0009] Further, the support portion is axially provided with a first mounting hole, the bearing seat is axially provided with a second mounting hole assembled with the first mounting hole, and the first buffer ring is arranged between the first mounting hole and the second mounting hole.

[0010] Preferably, the first mounting hole, the second mounting hole and the opening of the first buffer ring are coaxially arranged.

[0011] Further, the second part of the buffer structure comprises a second buffer ring coaxial with the first buffer ring, the radial dimension of the first buffer ring is greater than that of the second buffer ring, and the second buffer ring is embedded in the second mounting hole.

[0012] Further, the second mounting hole is arranged at the outer peripheral edge of the bearing seat, the outer peripheral edge of the bearing seat is provided with a notch communicated with the second mounting hole, and the notch extends from the top to the bottom of the bearing seat.

[0013] Further, the second part of the buffer structure further comprises a third buffer ring coaxial with the second buffer ring, the second buffer ring is arranged between the first buffer ring and the third buffer ring, the radial dimension of the third buffer ring is greater than the radial dimension of the second buffer ring, the second mounting hole is a stepped hole, and the third buffer ring is in abutment with the step in the second mounting hole;

[0014] Preferably, the first buffer ring and the third buffer ring are symmetrically arranged with the second buffer ring as the center.

[0015] Further, the openings of the first buffer ring, the second buffer ring and the third buffer ring form a through hole, an inner wall of the through hole is provided with a steel sleeve matched with the screw and coaxial with the through hole, and the outer peripheral wall of the steel sleeve is in abutment with the inner peripheral wall of the through hole.

[0016] Further, the inner peripheral wall of the through hole is provided with a plurality of grooves, the groove openings of the grooves face the inside of the through hole, and the plurality of grooves are distributed along the circumferential direction of the through hole;

[0017] Preferably, the plurality of grooves are arranged in a circle along the circumferential direction of the through hole, the grooves extend from the top of the through hole to the bottom of the through hole, and the top and bottom of the grooves are respectively provided with openings.

[0018] Further, the bottom of the support part is provided with a downwardly protruding protruding part, the protruding part is cylindrical, and the opening of the protruding part is coaxial with the first mounting hole.

[0019] Compared with the prior art, the application has the following beneficial effects.

[0020] By arranging the buffer structure between the motor support frame and the bearing seat, the flexible connection between the motor support frame and the bearing seat is realized, the relative movement between the motor support frame and the bearing seat is allowed, the deformation force of the outer cylinder can be buffered, the deformation force of the outer cylinder is prevented from being transmitted to the bearing and the oil seal of the bearing seat, the deformation damage of the bearing seat and the oil seal is avoided, and thus the noise and water leakage of the drum washing machine are avoided.

[0021] The specific embodiments of the application will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings are part of the present application and serve to provide a further understanding of the present application, the illustrative embodiments of the present application and the description thereof serve to explain the present application, but do not constitute an improper limitation on the present application. Obviously, the drawings described below are only some embodiments, and other drawings can be obtained by those skilled in the art without creating laborious efforts.

[0023] Figure 1 The structure of the water inlet structure of the drum washing machine in the embodiments of the present application is shown in the structure diagram.

[0024] Figure 2 is an exploded view of the water inlet structure of the drum washing machine provided by the embodiment of the present application;

[0025] Figure 3 is a partial enlarged view of the water inlet structure of the drum washing machine provided by the embodiment of the present application;

[0026] Figure 4 is a sectional view of the water inlet structure of the drum washing machine provided by the embodiment of the present application;

[0027] Figure 5 is a structural schematic view of the drum washing machine provided by the embodiment of the present application.

[0028] In the figure: 1-motor support frame; 11-supporting part; 12-first mounting hole; 2-bearing seat; 21-second mounting hole; 211-open end; 212-first part; 213-second part; 214-step; 3-water outlet adapter; 4-buffer structure; 41-first buffer ring; 42-second buffer ring; 43-third buffer ring; 44-through hole; 441-groove; 5-steel sleeve; 6-screw; 7-protruding part; 8-outer cylinder.

[0029] It should be noted that the drawings and the written description are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments will be described clearly and completely below with reference to the drawings of the embodiments of the present application. The following embodiments are used to illustrate the present application, but not to limit the scope of the present application.

[0031] In the description of the present application, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0032] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] like Figure 1 and Figure 4 As shown, the present invention provides a water inlet structure for a drum washing machine, including a motor support frame 1, a bearing seat 2 installed on the motor support frame 1, and a water outlet adapter 3 installed on the bearing seat 2. The motor support frame 1 and the bearing seat 2 are respectively provided with shaft holes for the inner drum shaft to pass through, and the water outlet adapter 3 is provided with an opening for the inner drum shaft to be inserted. It also includes a buffer structure 4, at least part of which is provided between the motor support frame 1 and the bearing seat 2.

[0034] In the embodiments of the present invention, the support frame is a motor support frame. By providing a buffer structure 4 between the motor support frame 1 and the bearing seat 2, the buffer structure 4 realizes a flexible connection between the motor support frame 1 and the bearing seat 2, so that the motor support frame 1 and the bearing seat 2 can move relative to each other, which can buffer the deformation force of the outer drum, prevent the deformation force of the outer drum from being transmitted to the bearing and oil seal of the bearing seat 2, and prevent the bearing and oil seal from being deformed and damaged, thereby avoiding noise and water leakage in the drum washing machine.

[0035] Specifically, such as Figure 5 As shown, the drum washing machine includes an outer drum 8 and an inner drum. The inner drum is rotatably mounted inside the outer drum 8 via an inner drum shaft. The motor support frame is mounted at the bottom of the outer drum. After the inner drum shaft passes through the outer drum, it passes through the shaft hole of the motor support frame 1 and then through the shaft hole of the bearing seat 2 and finally through the opening of the water outlet adapter 3. The water outlet adapter 3 is connected to the external water inlet pipe. The buffer structure 4 can be made of rubber. The bearing seat 2 of the water outlet adapter 3 forms a water passage chamber.

[0036] The outer periphery of the opening of the water outlet adapter 3 is provided with several first fixing holes, which are arranged in a circle along the circumference of the opening. The outer periphery of the shaft hole of the bearing seat 2 is provided with several second fixing holes, which are arranged in a circle along the circumference of the shaft hole. The first fixing holes and the second fixing holes are fixed by screws 6, so that the water outlet adapter 3 can be installed on the bearing seat 2.

[0037] like Figures 1-4 As shown, in an embodiment of the present invention, the motor support frame 1 has a horizontally extending support portion 11, the support portion 11 is provided with a shaft hole, the bearing seat 2 is annular, the opening of the bearing seat 2 constitutes the shaft hole, the bottom of the bearing seat 2 is in contact with the top of the support portion 11, and at least part of the buffer structure 4 is provided between the bottom of the support portion 11 and the top of the bearing seat 2.

[0038] In an embodiment of the present invention, the motor support frame 1 has a support part 11, the motor is mounted on the support part 11, the support part 11 supports the motor, the support part 11 extends in the horizontal direction, and further, the support part 11 is square, such that the top of the support part 11 is flat, and the shaft hole is located at the center of the support part 11, and the shaft hole of the support part 11 is a circular hole.

[0039] The bearing housing 2 is annular, and more specifically, the bearing housing 2 is circular, making the bottom of the bearing housing 2 flat. The opening of the bearing housing 2 forms the shaft hole of the bearing housing 2. More specifically, the shaft hole of the bearing housing 2 is circular. The shaft hole of the bearing housing 2 and the shaft hole of the support part 11 are coaxially arranged. The bottom of the bearing housing 2 and the top of the support part 11 are both flat, so that the bottom of the bearing housing 2 and the top of the support part 11 can fit completely together, avoiding gaps between the bearing housing 2 and the support part 11, thereby increasing the stability of the assembly between the bearing housing 2 and the support part 11. At least a portion of the buffer structure 4 is provided between the bottom of the bearing housing 2 and the top of the support part 11, that is, at least a portion of the buffer structure 4 is clamped between the bottom of the bearing housing 2 and the top of the support part 11, increasing the stability of the buffer structure 4 between the bearing housing 2 and the support part 11, and further buffering the force transmitted to the bearing housing 2 through the support part 11.

[0040] like Figure 3 and Figure 4 As shown, in an embodiment of the present invention, a first mounting hole 12 is provided on the outer periphery of the shaft hole of the support part 11, and a second mounting hole 21 is provided on the outer periphery of the shaft hole of the bearing seat 2. At least part of the buffer structure 4, that is, the first part of the buffer structure, is a first buffer ring 41. The first buffer ring 41 is disposed between the first mounting hole 12 and the second mounting hole 21 and is assembled with the first mounting hole 12 and the second mounting hole 21.

[0041] In an embodiment of the present invention, a plurality of first mounting holes 12 are provided on the outer periphery of the shaft hole of the support part 11, and the plurality of first mounting holes 12 are arranged in a circle along the circumference of the shaft hole of the support part 11. A plurality of second mounting holes 21 are provided on the outer periphery of the shaft hole of the bearing seat 2, and the plurality of second mounting holes 21 are arranged in a circle along the circumference of the shaft hole of the bearing seat 2. The first mounting holes 12 and the second mounting holes 21 are circular holes and are coaxially arranged. The first mounting holes 12 are directly opposite the second mounting holes 21 and are assembled with each other. A second fixing hole is provided between two adjacent second mounting holes 21. The bottom of the water outlet adapter 3 is annular. A radially protruding protrusion is provided on the outer periphery of the water outlet adapter 3. The protrusion extends into the space between the two second mounting holes 21. A first fixing hole is provided on the protrusion and is directly opposite the second fixing hole.

[0042] The buffer structure 4 includes a first buffer ring 41. Further, the first buffer ring 41 is a first rubber ring. The first buffer ring 41 is disposed between the first mounting hole 12 and the second mounting hole 21. The opening on the first buffer ring 41 is directly opposite the first mounting hole 12 and the second mounting hole 21. Further, the first buffer ring 41 is annular. The opening on the first buffer ring 41 is a circular hole. The opening of the first buffer ring 41 is coaxially arranged with the first mounting hole 12 and the second mounting hole 21. The opening of the first buffer ring 41, the first mounting hole 12 and the second mounting hole 21 are fixed by screws 6, so that the first buffer ring 41 is disposed between the motor support frame 1 and the bearing seat 2.

[0043] like Figure 4 As shown, the bottom of the support part 11 is provided with a downward protruding part 7. The protruding part 7 is cylindrical. The opening of the protruding part 7 is coaxial with the first mounting hole 12. The screw 6 passes through the first mounting hole 12, exits the motor support frame 1, and then enters the protruding part 7. The protruding part 7 can hide the screw 6 to prevent the tip of the screw 6 from damaging other parts or injuring workers.

[0044] like Figure 3 and Figure 4 As shown, in an embodiment of the present invention, the remaining buffer structure 4, that is, the second part of the buffer structure, includes a second buffer ring 42 formed by the upward protrusion of the first buffer ring 41 and coaxial with the first buffer ring 41. The second buffer ring 42 is embedded in the second mounting hole 21, and the radial dimension of the first buffer ring 41 is greater than the radial dimension of the second buffer ring 42.

[0045] In an embodiment of the present invention, the buffer structure 4 further includes a second buffer ring 42. Further, the second buffer ring 42 is a second rubber ring. The second buffer ring 42 is formed by protruding upward from the opening at the top of the first buffer ring 41. The second buffer ring 42 is integrally formed with the first buffer ring 41. The second buffer ring 42 is embedded in the second mounting hole 21. The second buffer ring 42 can assist the first buffer ring 41 in buffering the deformation force of the outer cylinder transmitted to the bearing seat 2. At the same time, it can also buffer the force of the screw 6 on the bearing seat 2, so as to avoid damage to the bearing seat 2 by the screw 6.

[0046] The opening of the first buffer ring 41 is directly opposite the opening of the second buffer ring 42, and the radial dimension of the opening of the first buffer ring 41 is equal to the radial dimension of the opening of the second buffer ring 42. The radial dimension of the first buffer ring 41 is greater than the radial dimension of the second buffer ring 42, so that while the second buffer ring 42 is embedded in the second mounting hole 21, the first buffer ring 41 can be clamped between the bearing seat 2 and the motor bearing bracket.

[0047] like Figure 3As shown, in an embodiment of the present invention, the second mounting hole 21 is provided on the outer peripheral edge of the bearing seat 2, and the outer peripheral edge of the bearing seat 2 is provided with a notch 211 communicating with the second mounting hole. The notch 211 extends from the top of the bearing seat 2 to the bottom of the bearing seat 2. The top of the notch 211 communicates with the top opening of the second mounting hole 21, and the bottom of the notch 211 communicates with the bottom opening of the second mounting hole 21.

[0048] In an embodiment of the present invention, the outer peripheral edge of the bearing housing 2 is provided with a notch 211 communicating with the second mounting hole 21. The notch 211 allows the second mounting hole 21 to communicate with the outside. The notch 211 extends from the top of the bearing housing 2 to the bottom of the bearing housing 2, and the top and bottom of the notch 211 are respectively connected to the top and bottom openings of the second mounting hole 21, so that the opening allows the second buffer ring 42 to be embedded in the second mounting hole 21. Furthermore, the first buffer ring 41 is exposed outside the opening and at the bottom of the bearing housing 2, so that the first buffer ring 41 and the second buffer ring 42 can be installed simultaneously, reducing the installation time.

[0049] like Figure 3 and Figure 4 As shown, in an embodiment of the present invention, the remaining buffer structure 4 further includes a third buffer ring 43 formed by the upward protrusion of the second buffer ring 42 and coaxial with the second buffer ring 42, wherein the radial dimension of the third buffer ring 43 is greater than the radial dimension of the second buffer ring 42.

[0050] In an embodiment of the present invention, the buffer structure 4 further includes a third buffer ring 43. Further, the third buffer ring 43 is a third rubber ring. The third buffer ring 43 is formed by the upward protrusion of the second buffer ring 42. The third buffer ring 43 and the second buffer ring 42 are integrally formed. The radial dimension of the opening of the third buffer ring 43 is equal to the radial dimension of the opening of the second buffer ring 42. The opening of the third buffer ring 43 is directly opposite the opening of the second buffer ring 42.

[0051] The third buffer ring 43 can assist the first buffer ring 41 in buffering the deformation force of the outer cylinder transmitted to the bearing housing 2. In addition, the third buffer ring 43 can buffer the force of the screw 6 on the bearing housing 2, so as to avoid damage to the bearing housing 2 by the screw 6.

[0052] The third buffer ring 43 is circular, and the radial dimension of the first buffer ring 41 is equal to the radial dimension of the third buffer ring 43, which improves the aesthetics of the buffer structure 4.

[0053] like Figure 3 and Figure 4As shown, in an embodiment of the present invention, the second mounting hole 21 is a stepped hole, and the second mounting hole 21 includes a first part 212 and a second part 213 distributed vertically. The second buffer ring 42 is embedded in the second part 213, and the third buffer ring 43 is embedded in the first part 212. The bottom of the third buffer ring 43 abuts against the step 214 between the first part 212 and the second part 213.

[0054] In an embodiment of the present invention, the second mounting hole 21 is a stepped hole, having a first part 212 and a second part 213 arranged vertically. The first part 212 is located at the top of the bearing seat 2. The second buffer ring 42 is embedded in the second part 213. The second part 213 has a positioning function for the second buffer ring 42, preventing the second buffer ring 42 from being misaligned when the buffer structure 4 is installed. The third buffer ring 43 is embedded in the first part 212. The first part 212 positions the third buffer ring 43, preventing the third buffer ring 43 from being misaligned when the buffer structure 4 is installed. Since the second buffer ring 42 is embedded in the second part 213 and the third buffer ring 43 is embedded in the first part 212, the radial dimension of the first part 212 is larger than the radial dimension of the second part 213.

[0055] A step 214 is provided between the bottom of the first part 212 and the top of the second part 213. The bottom of the third buffer ring 43 abuts against the step 214, and the step 214 provides support for the third buffer ring 43.

[0056] Since the second mounting hole 21 has an opening, the first part 212 has a first sub-opening, and the second part 213 has a second sub-opening. Since the radial dimension of the third buffer ring 43 is greater than the radial dimension of the second buffer ring 42, the radial dimension of the first sub-opening is greater than the radial dimension of the second sub-opening. This ensures that while the second buffer ring 42 is embedded in the second part 213 through the second sub-opening, the third buffer ring 43 is embedded in the first part 212 through the first sub-opening, thus enabling the third buffer ring 43 and the second buffer ring 42 to be installed simultaneously, reducing installation time.

[0057] like Figure 2 and Figure 4 As shown, in an embodiment of the present invention, the openings of the first buffer ring 41, the second buffer ring 42, and the third buffer ring 43 form a through hole 44. The inner wall of the through hole 44 is provided with a steel sleeve 5 that cooperates with the screw 6 and is coaxial with the through hole 44. The outer peripheral wall of the steel sleeve 5 abuts against the inner peripheral wall of the through hole 44.

[0058] In the embodiments of the present invention, the radial dimensions of the openings of the first buffer ring 41, the second buffer ring 42, and the third buffer ring 43 are the same, so that the radial dimensions of the through hole 44 formed by the three are consistent. In order to reduce damage to the buffer structure 4 and strengthen the assembly strength between the bearing seat 2 and the screw 6, a steel sleeve 5 is provided on the inner wall of the through hole 44. The steel sleeve 5 has a certain hardness and can be tightened with the screw 6. The screw 6 and the opening of the steel sleeve 5 and the first mounting hole 12 are assembled to realize the installation of the bearing seat 2 and the motor support frame 1.

[0059] like Figure 3 As shown, further, the inner peripheral wall of the through hole 44 is provided with a plurality of grooves 441, the groove openings of the grooves 441 facing the inside of the through hole 44, the plurality of grooves 441 are distributed at intervals along the circumference of the through hole 44, the plurality of grooves 441 are arranged at intervals so that there is a protrusion between two adjacent grooves 441 that protrudes into the through hole 44 relative to the groove 441, the outer peripheral wall of the steel sleeve 5 fits with the protrusion, realizing the partial fit between the outer peripheral wall of the steel sleeve 5 and the inner peripheral wall of the through hole 44, which can increase the tightness of the fit between the outer peripheral wall of the steel sleeve 5 and the inner peripheral wall of the through hole 44, and avoid damage to the bearing seat 2 by the tightening force between the screw 6 and the steel sleeve 5 during installation;

[0060] A number of grooves 441 are arranged in a circle around the circumference of the through hole 44. The grooves 441 extend from the top to the bottom of the through hole 44. The top and bottom of the grooves 441 are open, so that the grooves 441 cover the outer peripheral wall of the through hole 44, further increasing the tightness of the fit between the steel sleeve 5 and the inner peripheral wall of the through hole 44.

[0061] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A water inlet structure for a drum washing machine, comprising a support frame and a water inlet pipe, wherein the water outlet end of the water inlet pipe is provided with a radially protruding water passage chamber, characterized in that, It also includes a buffer structure, through which the water passage chamber is mounted on the support frame; The water outlet end of the water inlet pipe is equipped with a bearing seat and a water outlet adapter. The water outlet adapter has an opening facing the bearing seat. The water outlet adapter is fastened to the bearing seat and forms a water passage chamber with the bearing seat. The water outlet of the water inlet pipe is connected to the water outlet adapter. The support frame includes a horizontally extending support portion, the top of the support seat fits against the bottom of the bearing seat, and the first part of the buffer structure is a first buffer ring, which is clamped between the top of the support portion and the bottom of the bearing seat. The support part is provided with a first mounting hole in the axial direction, the bearing seat is provided with a second mounting hole in the axial direction to be assembled with the first mounting hole, and the first buffer ring is provided between the first mounting hole and the second mounting hole.

2. The water inlet structure according to claim 1, characterized in that, The second part of the buffer structure is connected to the bearing housing.

3. The water inlet structure according to claim 1, characterized in that, The first mounting hole, the second mounting hole, and the opening of the first buffer ring are coaxially arranged.

4. The water inlet structure according to claim 2, characterized in that, The second part of the buffer structure includes a second buffer ring coaxial with the first buffer ring. The radial dimension of the first buffer ring is larger than that of the second buffer ring, and the second buffer ring is embedded in the second mounting hole.

5. The water inlet structure according to claim 4, characterized in that, The second mounting hole is located on the outer periphery of the bearing housing, and the outer periphery of the bearing housing has a notch that communicates with the second mounting hole, extending from the top to the bottom of the bearing housing.

6. The water inlet structure according to claim 4, characterized in that, The second part of the buffer structure also includes a third buffer ring coaxial with the second buffer ring. The second buffer ring is located between the first buffer ring and the third buffer ring. The radial dimension of the third buffer ring is larger than that of the second buffer ring. The second mounting hole is a stepped hole, and the third buffer ring abuts against the step in the second mounting hole.

7. The water inlet structure according to claim 6, characterized in that, The first and third buffer rings are symmetrically arranged with the second buffer ring as the center.

8. The water inlet structure according to claim 6, characterized in that, The openings of the first buffer ring, the second buffer ring, and the third buffer ring form a through hole. The inner wall of the through hole is provided with a steel sleeve that mates with the screw and is coaxial with the through hole. The outer peripheral wall of the steel sleeve abuts against the inner peripheral wall of the through hole.

9. The water inlet structure according to claim 8, characterized in that, The inner circumferential wall of the through hole is provided with several grooves, the openings of the grooves facing the inside of the through hole, and the grooves are distributed at intervals along the circumference of the through hole.

10. The water inlet structure according to claim 9, characterized in that, Several grooves are arranged in a circle around the circumference of the through hole, extending from the top to the bottom of the through hole, with openings at the top and bottom of the grooves respectively.

11. The water inlet structure according to any one of claims 1-10, characterized in that, The bottom of the support has a downward protrusion, which is cylindrical, and the opening of the protrusion is coaxial with the first mounting hole.

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