An assembly structure of a window cushion and a drum-type washing machine

Abstract

The application discloses a window cushion assembly structure and a drum washing machine. The window cushion assembly structure comprises a clamping groove arranged on the window cushion and a buckle arranged on a front flange of an outer drum and clamped with the clamping groove. The buckle has an axial clamping part extending along the front flange of the outer drum in the axial direction. A recess part is arranged in the clamping groove for clamping the axial clamping part. The axial clamping part can be clamped with the recess part on the clamping groove in the axial direction, so that the window cushion can be connected with the front flange of the outer drum in the axial direction. The connecting direction between the window cushion and the front flange of the outer drum is increased, and the stability of the window cushion when the outer drum shakes violently is improved.

Description

TECHNICAL FIELD

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

[0002] It is known that the side wall of the washing machine is provided with an observation window, and the function of the observation window is to observe the cleaning condition of the clothes in the washing machine at any time when the washing machine is working. In order to prevent the water in the washing machine from flowing out, the observation window pad is generally provided on the observation window to play a sealing role. The observation window pad is annular, one end surface of the observation window pad is connected to the outer cylinder of the washing machine, and the other end surface of the observation window pad is connected to the box body of the washing machine. Since the outer cylinder will swing due to the rotation of the inner cylinder during the working process of the washing machine, the outer cylinder will pull the observation window pad. In order to prevent the observation window pad from falling off the outer cylinder, a clamping groove is designed on one end surface of the window pad and the buckle of the front flange of the outer cylinder is clamped, and a fastening steel ring is used to fix the outer ring. However, the clamping groove and the buckle are usually arranged in the radial direction, and the window pad still has the risk of falling off when the outer cylinder shakes violently.

[0003] Therefore, the present application is proposed. SUMMARY

[0004] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art and provide a window pad assembly structure and a drum washing machine. By arranging the buckle to have an axial clamping portion extending along the axis of the front flange of the outer cylinder, the axial clamping portion can be clamped with the recess on the clamping groove in the axial direction, so that the window pad can be connected with the front flange of the outer cylinder in the axial direction, and the connection direction between the window pad and the front flange of the outer cylinder is increased, which can increase the stability of the window pad when the outer cylinder shakes violently.

[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 window pad assembly structure, which comprises a clamping groove arranged on the window pad and a buckle arranged on the front flange of the outer cylinder and clamped with the clamping groove. The buckle has an axial clamping portion extending along the axis of the front flange of the outer cylinder, and the clamping groove has a recess for clamping the axial clamping portion.

[0007] Further, the radial section of the buckle on the front flange of the outer cylinder is L-shaped, and the buckle further has a radial clamping portion extending along the radial direction of the front flange of the outer cylinder. The axial clamping portion and the radial clamping portion are distributed along the direction from the inner periphery to the outer periphery of the front flange of the outer cylinder. The radial clamping portion protrudes from the end surface of the front flange of the outer cylinder, and the axial clamping portion is formed by bending the radial clamping portion outwardly to the front flange of the outer cylinder.

[0008] Further, the end surface of the front flange of the outer cylinder is provided with a clothes feeding opening, the end surface of the front flange of the outer cylinder protrudes axially to form a protruding portion coaxial with the clothes feeding opening and annular, and the radial clamping portion is arranged on the free end of the protruding portion in the axial direction.

[0009] Further, the radial clamping portion includes an inner clamping segment protruding towards the inner periphery of the protruding portion and an outer clamping segment protruding towards the outer periphery of the protruding portion, the axial clamping portion extends into the protruding portion, the outer clamping segment, the protruding portion and the end surface of the front flange of the outer cylinder form a plug-in slot.

[0010] Further, the end surface of the window cushion protrudes axially to form a protruding portion towards the front flange of the outer cylinder, a notch is arranged on the protruding portion to form a clamping slot towards the front flange of the outer cylinder, the clamping buckle enters the clamping slot through the notch and is clamped in the clamping slot.

[0011] Further, the clamping slot includes an inner slot segment and an outer slot segment distributed along the direction from the inner periphery to the outer periphery of the window cushion, the axial clamping portion is clamped into the inner slot segment, the inner slot segment constitutes a recessed portion of the clamping slot, and the radial clamping portion is clamped into the outer slot segment, and the outer slot segment is provided with an auxiliary recessed portion for clamping at least part of the radial clamping portion.

[0012] Further, the slot bottom wall of the clamping slot, the clamping slot side wall located at the inner periphery of the window cushion and the clamping slot side wall provided with the notch form the inner slot segment.

[0013] Further, the outer slot segment includes an inner segment and an outer segment distributed along the direction from the inner periphery to the outer periphery of the window cushion, the inner clamping segment is clamped into the inner segment, a part of the clamping slot side wall located at the outer periphery is recessed into the clamping slot to form a recessed portion, the clamping slot bottom wall, the clamping slot side wall located at the outer periphery of the window cushion and the side wall of the recessed portion form the outer segment, the outer segment constitutes the auxiliary recessed portion, the outer clamping segment is clamped into the outer segment, and the bottom of the recessed portion is inserted into the plug-in slot.

[0014] Further, the clamping slot side wall provided with the notch extends radially towards the outer periphery of the window cushion to form an abutting portion abutting against the end surface of the front flange of the outer cylinder, and the abutting portion protrudes from the clamping slot side wall located at the outer periphery of the window cushion.

[0015] The present application also provides a washing machine comprising the assembly structure of the window cushion provided by the above technical solution.

[0016] After adopting the above technical solution, the present application has the following beneficial effects compared with the prior art:

[0017] By arranging the clamping buckle with the axial clamping portion extending axially along the front flange of the outer cylinder, the axial clamping portion can be clamped with the recessed portion on the clamping slot of the window cushion in the axial direction, so that the window cushion can be connected with the front flange of the outer cylinder in the axial direction, the connection direction between the window cushion and the front flange of the outer cylinder is increased, and the stability of the window cushion when the outer cylinder shakes violently can be improved.

[0018] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the application and together with the description, serve to explain the application. Obviously, the drawings shown are only a few embodiments and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings. In the drawings:

[0020] Figure 1 is a structural schematic view of the annular flange provided by the first embodiment of the present application;

[0021] Figure 2 is Figure 1 is a partial enlarged view of the sectional view at B-B;

[0022] Figure 3 is a structural schematic view of the window cushion provided by the first embodiment of the present application;

[0023] Figure 4 is Figure 3 is a partial enlarged view of the sectional view at A-A;

[0024] Figure 5 is a schematic view of the assembly of the window cushion and the flange provided by the first embodiment of the present application;

[0025] Figure 6 is a structural schematic view of the annular flange provided by the second embodiment of the present application;

[0026] Figure 7 is Figure 6 is an enlarged view at A;

[0027] Figure 8 is a structural schematic view of the annular flange provided by the second embodiment of the present application;

[0028] Figure 9 is Figure 8 is a partial enlarged view of the sectional view at A-A;

[0029] Figure 10 is a structural schematic view of the limiting rib provided by the second embodiment of the present application;

[0030] Figure 11 is a structural schematic view of the drum washing machine provided by the third embodiment of the present application;

[0031] Figure 12 is Figure 11 is an enlarged view at A.

[0032] Icon: 1 - annular flange; 11 - peripheral wall; 12 - front end wall; 121 - clothes feeding opening; 13 - connecting wall; 14 - drain groove; 141 - groove bottom wall; 142 - front groove side wall; 143 - left groove side wall; 144 - right groove side wall; 145 - bending part; 15 - drain hole; 16 - protruding part; 161 - mounting hole; 162 - limiting hole; 163 - opening; 17 - first limiting rib; 171 - bayonet; 18 - second limiting rib; 19 - buckle; 191 - axial clamping part; 192 - radial clamping part; 1921 - inner clamping part; 1922 - outer clamping part; 1923 - insertion slot; 190 - protruding part of the buckle; 2 - window pad; 21 - protruding part of the window pad; 22 - clamping groove; 221 - inner groove segment; 222 - outer groove segment; 2221 - inner segment; 2222 - outer segment; 223 - recess; 224 - recessed part; 23 - blocking part; 24 - protruding part of the window pad; 3 - outer cylinder; 31 - outer cylinder mouth; 311 - front outer cylinder mouth segment; 312 - rear outer cylinder mouth segment; 313 - shielding part; 314 - radial gap; 4 - inner cylinder; 41 - protruding part of the inner cylinder; 42 - inner cylinder mouth; 421 - front inner cylinder mouth segment; 4211 - front segment; 4212 - rear segment; 422 - rear inner cylinder mouth segment; 423 - flange; 4231 - covering part; 5 - observation window.

[0033] It should be noted that the drawings and the detailed description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0034] 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 are not used to limit the scope of the present application.

[0035] 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 do not indicate or imply 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.

[0036] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, 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.

[0037] Embodiment one

[0038] As Figures 1-5 shown, the present application provides an assembly structure of a window cushion, which comprises a clamping groove 22 arranged on the window cushion 2 and a buckle 19 arranged on the front flange of the outer cylinder and clamped with the clamping groove 22. The buckle 19 has an axial clamping portion 191 extending along the axial direction of the front flange of the outer cylinder. The clamping groove 22 has a recessed portion 224 for clamping the axial clamping portion 191.

[0039] In the embodiment of the present application, by arranging the buckle 19 with the axial clamping portion 191 extending along the axial direction of the front flange of the outer cylinder, the axial clamping portion 191 can be clamped with the recessed portion 224 on the clamping groove 22 in the axial direction, so that the window cushion 2 can be connected with the front flange of the outer cylinder in the axial direction, thereby increasing the connection direction between the window cushion 2 and the front flange of the outer cylinder, and the stability of the window cushion 2 when the outer cylinder shakes violently can be increased.

[0040] The assembly structure of the window cushion 2 is used in a drum washing machine, which comprises an outer cylinder. The front end of the outer cylinder is provided with a front flange of the outer cylinder. The rear end of the window cushion 2 is arranged at the front end of the front flange of the outer cylinder. The window cushion 2 and the front flange of the outer cylinder are arranged in front and back. The front flange of the outer cylinder is an annular flange 1. The window cushion 2 is provided with a blocking portion 23, which is the shielding portion 313 in the third embodiment.

[0041] As Figure 2 shown, specifically, the radial section of the buckle 19 on the front flange of the outer cylinder is L-shaped. The buckle 19 also has a radial clamping portion 192 extending along the radial direction of the front flange of the outer cylinder. The axial clamping portion 191 and the radial clamping portion 192 are distributed along the direction from the inner periphery to the outer periphery of the front flange of the outer cylinder. The radial clamping portion 192 is arranged protruding from the end surface of the front flange of the outer cylinder. The axial clamping portion 191 is formed by bending the radial clamping portion 192 outwardly to the inner periphery of the front flange of the outer cylinder. The radial section of the buckle 19 on the front flange of the outer cylinder is L-shaped, so that the buckle 19 comprises the axial clamping portion 191 and the radial clamping portion 192. The axial clamping portion 191 can be clamped with the clamping groove 22 of the window cushion 2 in the axial direction. The radial clamping portion 192 can be clamped with the clamping groove 22 of the window cushion 2 in the radial direction. The window cushion 2 is connected with the front flange of the outer cylinder in the radial direction and the axial direction, thereby increasing the mounting strength of the window cushion 2 on the front flange of the outer cylinder, and thus increasing the stability of the window cushion 2.

[0042] As Figure 2And Figure 5 Further, the end surface of the front flange of the outer drum is provided with a clothes feeding opening 121, and the end surface of the front flange of the outer drum is axially protruded to form a protruding portion in the shape of a ring coaxial with the clothes feeding opening 121, and the radial clamping portion 192 is arranged on the free end of the protruding portion in the axial direction.

[0043] The protruding portion is a buckling protruding portion 190, and the buckling protruding portion 190 is arranged such that the radial clamping portion 192 protrudes from the end surface of the front flange of the outer drum, and in particular, the radial clamping portion 192 protrudes from the front end surface of the front flange of the outer drum, and the radial clamping portion 192 and the front end surface of the front flange of the outer drum are respectively arranged on the two ends of the protruding portion of the buckle 19 in the axial direction, and the radial clamping portion 192 and the axial clamping portion 191 can be in the shape of a ring, a semi-ring, etc.

[0044] Further, the radial clamping portion 192 includes an inner clamping segment 1921 protruding from the inner periphery of the protruding portion and an outer clamping segment 1922 protruding from the outer periphery of the protruding portion, the axial clamping portion 191 extends into the protruding portion, and the outer clamping segment 1922, the protruding portion, and the end surface of the front flange of the outer drum form a plug-in slot 1923. The radial clamping portion 192 includes the inner clamping segment 1921 and the outer clamping segment 1922, and the inner clamping segment 1921 and the outer clamping segment 1922 are different from the clamping portion in the inner portion of the clamping groove 22, so that the radial clamping portion 192 and the clamping groove 22 have multiple clamping portions, and the strength of the clamping between the radial clamping portion 192 and the clamping groove 22 is improved.

[0045] As shown in Figure 3 And 4 In the embodiment of the present application, the end surface of the window pad 2 axially protrudes to form a protruding portion toward the front flange of the outer drum, and a slot opening of the clamping groove 22 of the front flange of the outer drum is arranged toward the front end surface of the front flange of the outer drum, and the buckle 19 enters the clamping groove 22 through the slot opening and is clamped in the clamping groove 22.

[0046] In the embodiment of the present application, the protruding portion is a protruding portion 21 of the window pad, the protruding portion 21 of the window pad is in the shape of a ring, the clamping groove 22 is arranged on the protruding portion 21 of the window pad, the slot opening of the clamping groove 22 is arranged toward the front end surface of the front flange of the outer drum, the buckle 19 enters the clamping groove 22 through the slot opening and is clamped in the clamping groove 22; the clamping groove 22 can be in the shape of a ring, a semi-ring, etc.; and the protruding portion 21 of the window pad is the protruding portion 24 of the window pad in Embodiment Three.

[0047] In particular, the middle part of the rear end of the window pad 2 is provided with a window pad 2 opening, the window pad 2 is in the shape of a ring, the ring-shaped window pad 2 and the front flange of the outer drum are coaxially arranged, the protruding portion 21 of the window pad, the window pad 2 opening, the clothes feeding opening on the front end surface of the front flange of the outer drum, and the window pad 2 are coaxially arranged.

[0048] As shown in Figure 2 , 4 And Figure 5As shown, further, the clamping groove 22 comprises an inner groove segment 221 and an outer groove segment 222 distributed along the direction from the inner periphery to the outer periphery of the window cushion 2, the axial clamping portion 191 is clamped into the inner groove segment 221, the inner groove segment 221 constitutes a recessed portion 224 of the clamping groove 22, the radial clamping portion 192 is clamped into the outer groove segment 222, and the outer groove segment 222 is provided with an auxiliary recessed portion 225 for clamping at least part of the radial clamping portion 192.

[0049] The clamping groove 22 is divided into the inner groove segment 221 and the outer groove segment 222, the inner groove segment 221 is clamped with the axial clamping portion 191 as a recessed portion 224 in the clamping groove 22, the outer groove segment 222 is clamped with the radial clamping portion 192, and the clamping groove 22 further has an auxiliary recessed portion 225 for clamping at least part of the radial clamping portion 192, whether the recessed portion 224 in the clamping groove 22 or the auxiliary recessed portion 225 enables the buckle 19 to be clamped with the clamping groove 22 more deeply, so that after the buckle 19 is clamped into the clamping groove 22, the axial clamping portion 191 and at least part of the radial clamping portion 192 of the buckle 19 can further be clamped with the recessed portion 224 and the auxiliary recessed portion 225 in the clamping groove 22, thereby further increasing the clamping strength between the buckle 19 and the clamping groove 22.

[0050] The groove bottom wall of the clamping groove 22, the clamping groove 22 side wall located at the inner periphery of the window cushion 2, and the clamping groove 22 side wall provided with the slot form the inner groove segment 221. The slot of the clamping groove 22 is located at the front side of the clamping groove 22, and the slot of the clamping groove 22 is not open, so that the front side of the clamping groove 22 has a section of solid wall, the side wall provided with the slot of the clamping groove 22 is the groove front wall of the clamping groove 22, and the groove front wall of the clamping groove 22 is respectively located at the inner groove front wall of the clamping groove 22 located at the inner periphery of the window cushion 2, the clamping groove 22, and the clamping groove 22 side wall located at the inner periphery of the window cushion 2, thereby forming the inner groove segment 221 matched with the axial clamping portion 191.

[0051] Further, the outer groove segment 222 comprises an inner segment 2221 and an outer segment 2222 distributed along the direction from the inner periphery to the outer periphery of the window cushion 2, the inner clamping segment 1921 is clamped into the inner segment 2221, a part of the clamping groove 22 side wall located at the outer periphery is recessed into the clamping groove 22 to form a recessed portion 223, the clamping groove 22 bottom wall, the clamping groove 22 side wall located at the outer periphery of the window cushion 2, and the side wall of the recessed portion 223 form the outer segment 2222, the outer segment 2222 constitutes the auxiliary recessed portion 225, the outer clamping segment 1922 is clamped into the outer segment 2222, and the bottom of the recessed portion 223 is inserted into the insertion slot 1923.

[0052] The bottom of the recessed portion 223 is inserted into the insertion slot 1923, thereby further increasing the assembly strength between the buckle 19 and the clamping groove 22. The front section of the clamping groove 22 side wall located at the outer periphery is recessed into the clamping groove 22 to form the recessed portion 223, and the rear section of the clamping groove 22 side wall located at the outer periphery remains unchanged.

[0053] The side wall of the slot 22 with the groove extends radially outward to the outer periphery of the window gasket 2 to form an abutment portion 226 that abuts against the end face of the outer cylinder front flange. The abutment portion 226 protrudes from the side wall of the slot 22 on the outer periphery of the window gasket 2. Specifically, the abutment portion 226 abuts against the end face of the outer cylinder front flange while the buckle 19 engages with the slot 22, increasing the contact area between the window gasket 2 and the outer cylinder front flange, and further increasing the assembly strength between the window gasket 2 and the outer cylinder front flange.

[0054] Example 2

[0055] like Figures 6-9 As shown, the present invention provides a flange structure, including an annular flange 1. The annular flange 1 includes a peripheral wall 11 and a front end wall 12 located at the front end of the peripheral wall 11. A drain hole 15 is provided at the bottom of the peripheral wall 11. The bottom of the peripheral wall 11 and the front end wall 12 are connected by a connecting wall 13. The connecting wall 13 extends gradually from top to bottom towards the drain hole 15.

[0056] In an embodiment of the present invention, a connecting wall 13 is used to transition between the lowest point of the peripheral wall 11 and the front end wall 12. The connecting wall 13 gradually extends from top to bottom towards the drain hole 15, so that the inclined connecting wall 13 can guide the residual foam and washing water on the flange to the drain hole 15 and discharge it into the water tank. This reduces the residue of foam and washing water on the flange, thereby improving the cleaning effect on clothes and enhancing the user experience.

[0057] This flange structure is applied to a drum washing machine. The drum washing machine includes a shell and an outer drum disposed within the shell. The outer drum includes an outer drum body with an opening at the front end. A flange structure is provided at the opening. The flange structure includes an annular flange 1, which is coaxially arranged with the opening. The peripheral wall 11 of the annular flange 1 is connected to the opening at the front end of the outer drum body. A drain hole 15 is provided at the bottom of the peripheral wall 11 of the flange. The drain hole 15 communicates with the interior of the outer drum. The drain hole 15 can drain the washing water and foam remaining on the annular flange 1 into the outer drum. The foam and washing water residue on the annular flange 1 is because during the washing process, the inner drum rotates, causing the washing water and foam to splash onto the annular flange 1.

[0058] The corner between the peripheral wall 11 and the front end wall 12 of the existing annular flange 1 has a large bending degree, which causes the washing water and foam to be unable to enter the drain hole 15 and to be retained at the corner. The connecting wall 13 can realize the transition connection between the lowest part of the peripheral wall 11 and the front end wall 12, has a buffering effect on the flow of the washing water and foam, can reduce the retention of the washing water and foam at the corner between the lowest part of the peripheral wall 11 and the front end wall 12, and in order to accelerate the flow of the washing water and foam and further reduce the retention of the washing water and foam, the connecting wall 13 is arranged to gradually extend downwardly and obliquely to the drain hole 15, and the oblique connecting wall 13 can guide the washing water and foam retained at the corner to the drain hole 15. Figure 1 FIG. 4 is a rear view of the annular flange 1.

[0059] As shown in FIG. 1, in the embodiment of the present application, the connecting wall 13 gradually decreases in size from top to bottom, the top of the connecting wall 13 is connected with the outer peripheral edge of the front end wall 12 and extends along the extension track of the front end wall 12 in the circumferential direction of the annular flange 1, and the bottom of the connecting wall 13 is connected with the front end edge of the peripheral wall 11 opposite to the drain hole 15 and extends along the extension track of the peripheral wall 11 in the circumferential direction of the annular flange 1. Figure 7 In the embodiment of the present application, the connecting wall 13 gradually decreases in size from top to bottom, so that the connecting wall 13 presents a converging trend from top to bottom, can converge and collect the washing water and foam to the drain hole 15, reduces the retention of the washing water and foam, and can more accurately discharge the washing water and foam into the outer cylinder through the drain hole 15.

[0060] The front end wall 12 is in a circular arc shape in the circumferential direction of the annular flange 1, and the top of the connecting wall 13 also presents a circular arc shape by extending along the extension track of the front end wall 12, which can reduce the retention of the washing water and foam, and the top of the connecting wall 13 extends along the extension track of the front end wall 12 in the circumferential direction of the annular flange 1, and the bottom of the connecting wall 13 extends along the extension track of the peripheral wall 11 in the circumferential direction of the annular flange 1, which can increase the aesthetic appearance of the annular flange 1 at the lowest part.

[0061] As shown in FIG. 1, further, the connecting wall 13 is in a quadrilateral shape, the drain hole 15 is arranged close to the right side of the connecting wall 13, and the size of the left side of the connecting wall 13 extending from top to bottom is greater than the size of the right side of the connecting wall 13 extending from top to bottom.

[0062] Figure 7

[0063] ​​The drain hole 15 is arranged close to the right side of the connecting wall 13, so as to avoid affecting the arrangement of other components on the outer tub; since the drain hole 15 is arranged close to the right side of the connecting wall 13, the left side of the connecting wall 13 is relatively far away from the drain hole 15 compared with the right side of the connecting wall 13, so the extending size of the left side of the connecting wall 13 from top to bottom is greater than the extending size of the right side of the connecting wall 13 from top to bottom, so that the left side of the connecting wall 13 can completely guide the washing water and foam to the drain hole 15.

[0064] As shown in Figure 7 Further, the bottom of the connecting wall 13 extends horizontally along the left-right direction, and the included angle between the left side of the connecting wall 13 and the bottom of the connecting wall 13 is greater than the included angle between the right side of the connecting wall 13 and the bottom of the connecting wall 13.

[0065] Since the extending size of the left side of the connecting wall 13 from top to bottom is greater than the extending size of the right side of the connecting wall 13 from top to bottom, the size of the left side of the connecting wall 13 is relatively long, in order to avoid that the slope of the left side of the connecting wall 13 is too large, causing the washing water and foam to flow too fast, if the washing water and foam flow too fast, a large amount of residues of the washing water and foam will appear, therefore, the included angle between the left side of the connecting wall 13 and the bottom of the connecting wall 13 is set to be relatively large, so as to reduce the slope of the left side of the connecting wall 13.

[0066] As shown in Figures 6-9 In the embodiment of the present application, the bottommost part of the peripheral wall 11 is concave downward to form a drain groove 14, and the drain hole 15 is arranged on the groove bottom wall 141 of the drain groove 14.

[0067] In the embodiment of the present application, the bottommost part of the peripheral wall 11 is concave downward to form a drain groove 14, and the drain groove 14 collects the washing water and foam, and the collected washing water and foam can be concentrated to flow to the drain hole 15 and then discharged into the outer tub through the drain hole 15.

[0068] In the embodiment of the present application, the inner wall of the drain groove 14 forms a flow guide surface which is consistent with the rotation direction of the water flow and can guide the washing water to the drain hole 15.

[0069] In the embodiment of the present application, in order to further make the washing water and foam flowing into the drain groove 14 accurately and with less residues flow to the drain hole 15, the inner wall of the drain hole 15 forms a flow guide surface, the flow guide direction of the flow guide surface is consistent with the rotation direction of the water flow in the inner tub, and the flow guide surface can guide the washing water to the drain hole 15.

[0070] As shown in Figure 7As shown, further, the bottom wall 141 of the drainage trough 14 extends horizontally in the left and right direction. The left side wall 143 and the right side wall 144 of the drainage trough 14 gradually slope inward from top to bottom. The top of the right side wall 144 of the drainage trough 14 gradually bends towards the drainage hole 15 to form a bend 145. The inner side of the left side wall 143, the inner side of the right side wall 144, the inner side of the bottom wall 141 of the drainage trough 14, and the inner side of the bend 145 form a guide surface.

[0071] The aforementioned guide surface has a hook shape. When the washing machine is spinning, the guide surface can not only guide the washing water and foam from the left side to the right side of the guide surface, and then guide the washing water and foam to the upper right side of the guide surface, and finally guide them to the drain hole 15, but also allow the washing water at the upper right side of the guide surface and the washing water below the guide surface to collide, accelerating the collision of water flow, so that the washing water at the upper right side of the guide surface drips down quickly.

[0072] like Figure 7 As shown, further, the extension dimension of the left sidewall 143 of the drainage trough 14 from top to bottom is greater than the extension dimension of the drainage trough 14 from top to bottom, and the included angle between the left sidewall 143 of the drainage trough 14 and the bottom wall 141 of the drainage trough 14 is greater than the included angle between the right sidewall 144 of the drainage trough 14 and the bottom wall 141 of the drainage trough 14.

[0073] Since the drain hole 15 is located near the right side of the bottom wall 141 of the drain trough 14, the left side wall 143 of the drain trough 14 is farther from the drain hole 15 than the right side wall 144 of the drain trough 14. Therefore, the dimension of the left side wall 143 extending from top to bottom is greater than the dimension of the right side wall extending from top to bottom, so that the left side wall 143 of the drain trough 14 can completely guide the washing water and foam to the drain hole 15.

[0074] Because the vertical extension dimension of the left sidewall 143 of the drain trough 14 is greater than that of the right sidewall 144 of the drain trough 14, the left sidewall 143 of the drain trough 14 is relatively long. In order to avoid the large slope of the left sidewall 143 of the drain trough 14, which would cause the washing water and foam to flow too fast, and if the washing water and foam flow too fast, a large amount of washing water and foam will remain. Therefore, the angle between the left sidewall 143 and the bottom wall 141 of the drain trough 14 is set to be large to reduce the slope of the left sidewall 143.

[0075] Further, the connecting wall 13 is connected with the front end of the left tank side wall 143 of the drain tank 14, the front end of the right tank side wall 144 of the drain tank 14, and the bottom of the tank bottom wall 141 of the drain tank 14.

[0076] As shown in Figure 9 Further, the peripheral wall 11 of the annular flange 1 is provided with a radially extending flange protruding part 16, the front end of the flange protruding part 16 is provided with an axially extending mounting hole 161 with a mounting opening facing forward, the mounting hole 161 is used for mounting the counterweight of the washing machine; the flange protruding part 16 is further provided with an axially extending limiting hole 162, the mounting hole 161 and the limiting hole 162 are distributed in front of and behind each other and communicate in the axial direction, the outer periphery of the limiting hole 162 is provided with a limiting hole opening 163, the limiting hole opening 163 is used for allowing the gasket to enter the limiting hole 162, the gasket is arranged in the limiting hole 162, the mounting hole 161 is used for mounting the bolt, and the gasket is mounted in cooperation with the bolt and the mounting hole 161 to mount the counterweight.

[0077] As shown in Figure 10 Further, the outer side of the peripheral wall 11 of the annular flange 1 is provided with a first limiting rib 17 and a second limiting rib 18 for limiting the pressure guide pipe, the first limiting rib 17 includes a radially extending radial limiting part formed by the radial protrusion of the peripheral wall 11, an axially extending axial limiting part arranged at the free end of the radial limiting part, and a bayonet 171 formed between the radial limiting part, the axial limiting part, and the peripheral wall 11, the second limiting rib 18 is formed by the radial protrusion of the peripheral wall 11, the pressure guide pipe extends circumferentially on the peripheral wall 11, the pressure guide pipe extends into the bayonet 171, the pressure guide pipe is clamped on the bayonet 171, the outer peripheral wall 11 of the pressure guide pipe abuts against the rear side wall of the bayonet 171, the second limiting rib 18 is arranged on the front side of the first limiting rib 17, and the rear side wall of the second limiting rib 18 blocks the pressure guide pipe.

[0078] Example Three

[0079] As shown in Figure 11 and Figure 12 The present application provides a drum washing machine, which comprises an outer drum 3 and an inner drum 4 arranged in a sleeving manner, the inner drum port 42 is a gradually narrowing variable diameter port, the outer drum port 31 is a constant diameter port, and the small size end of the inner drum port 42 extends into the outer drum port 31 in the axial direction.

[0080] In the embodiment of the present application, by setting the inner cylinder mouth 42 as a gradually narrowing variable diameter mouth, setting the outer cylinder mouth 31 as an equal diameter mouth, and extending the small size end of the inner cylinder mouth 42 into the outer cylinder mouth 31, a radial gap 4212 is generated between the outer periphery of the inner cylinder mouth 42 and the inner periphery of the outer cylinder mouth 31 in the radial direction, which can avoid clamping the clothes in the rotating inner cylinder 4, thereby avoiding noise caused by clothes being clamped when the inner cylinder 4 rotates, and improving the user experience.

[0081] The drum washing machine comprises an inner cylinder 4 and an outer cylinder 3 which are coaxially arranged, the inner cylinder 4 has an inner cylinder mouth 42, the outer cylinder 3 has an outer cylinder mouth 31, the inner cylinder mouth 42 and the outer cylinder mouth 31 are coaxially arranged, and the inner cylinder mouth 42 and the outer cylinder mouth 31 are cylindrical; the inner cylinder mouth 42 gradually narrows from the inside to the outside of the washing machine, that is, the radial dimension of the inner cylinder mouth 42 gradually decreases from the inside to the outside of the washing machine, so that the inner cylinder mouth 42 has a small size end and a large size end, the small size end of the inner cylinder mouth 42 is the outer end of the inner cylinder mouth 42 in the axial direction, and the large size end of the inner cylinder mouth 42 is the inner end of the inner cylinder mouth 42 in the axial direction; the radial dimension of the outer cylinder mouth 31 remains unchanged from the inside to the outside of the washing machine.

[0082] The inner cylinder mouth 42 is a gradually narrowing variable diameter mouth, so that the inner peripheral wall of the inner cylinder mouth 42 gradually inclines to the outer periphery direction of the inner cylinder 4 from the small size end to the large size end of the inner cylinder mouth 42, the inclined inner peripheral wall of the inner cylinder mouth 42 can block and guide the clothes, guide the clothes splashed to the inner cylinder mouth 42 into the inner cylinder 4, and make the clothes away from the radial gap 4212.

[0083] The formation of the inner cylinder mouth 42 comprises that the middle part of the front end wall of the inner cylinder 4 is provided with an inner cylinder 4 opening, the front end wall of the inner cylinder 4 is provided with a coaxial annular protruding part which is annular, and the inner periphery of the protruding part forms the inner cylinder mouth 42;

[0084] The formation of the outer cylinder mouth 31 comprises that the middle part of the front end wall of the outer cylinder 3 is provided with an outer cylinder 3 opening, the outer cylinder 3 opening is provided with an annular window gasket 2, the rear end wall of the annular window gasket 2 is provided with a window gasket 2 opening and an annular protruding part, the outer cylinder 3 opening, the window gasket 2 opening and the protruding part are coaxially arranged, at least part of the protruding part is inserted into the outer cylinder 3 through the outer cylinder opening, the outer periphery wall of the protruding part abuts against the inner periphery wall of the outer cylinder 3 opening, and the inner periphery of the protruding part forms the outer cylinder mouth 31; the protruding part is the protruding part 24 of the window gasket;

[0085] As Figure 12As shown, in an embodiment of the present invention, the inner cylinder opening 42 includes a front inner cylinder opening section 421 and a rear inner cylinder opening section 422 located at the small-sized end and the large-sized end of the inner cylinder opening 42, respectively. The inner and outer cylinder openings 31 are coaxially arranged. The radial dimension of the outer cylinder opening 31 is greater than the radial dimension of the front inner cylinder opening section 421 and smaller than the radial dimension of the rear inner cylinder opening section 422. At least a portion of the front inner cylinder opening section 421 extends into the outer cylinder opening 31.

[0086] In an embodiment of the present invention, the radial dimension of the outer tube opening 31 is greater than the radial dimension of the front inner tube opening section 421 and smaller than the radial dimension of the rear inner tube opening section 422, so that part of the inner tube opening 42 extends into the outer tube opening 31, and the inner tube opening 42 does not extend completely into the outer tube opening 31, so that the large-size end of the inner tube opening 42 is as large as possible, which facilitates the insertion of clothes and avoids the clothes from blocking the inner tube opening 42 when being inserted.

[0087] At least part of the front inner cylinder opening section 421 extends into the outer cylinder opening 31, so that there is a radial gap 4212 between the front inner cylinder opening section 421 and the inner peripheral wall of the outer cylinder opening 31, to prevent friction between the inner cylinder 4 and the inner peripheral wall of the outer cylinder opening 31 during rotation and reduce the wear of the inner cylinder opening 42.

[0088] like Figure 12 As shown, the front inner drum opening section 421 further includes a front section 4211 extending into the outer drum opening 31 and a rear section 4212 located outside the outer drum opening 31. The outer peripheral wall of the front section 4211 and the inner peripheral wall of the outer drum 3 form a radial gap 4212 that is open at both ends in the axial direction and gradually narrows from the outside of the washing machine to the inside.

[0089] The front inner cylinder opening section 421 includes a front section 4211 and a rear section 4212. The front section 4211 extends axially into the outer cylinder opening 31 and creates a radial gap 4212 with the outer cylinder opening 31. The rear section 4212 is in the outer cylinder opening 31 to avoid contact between the inner cylinder opening 42 and the outer cylinder opening 31, thereby avoiding friction between the outer peripheral wall of the inner cylinder opening 42 and the inner peripheral wall of the outer cylinder opening 31 during the rotation of the inner cylinder 4.

[0090] The drum washing machine also includes an observation window 5, which extends into the protrusion through the opening of the window pad 2. The protrusion is the protrusion 24 of the window pad. The small end of the front inner drum opening section 421 extends to the outer peripheral wall of the observation window 5. The front section 4211 of the front inner drum opening section 421 is between the outer periphery of the observation window 5 and the outer drum opening 31.

[0091] The opening of the radial gap 4212 at the axial two ends gradually narrows from the outside to the inside of the washing machine, on the one hand, the clothes in the inner drum 4 during rotation are blocked, preventing the clothes from approaching the radial gap 4212 and preventing the clothes from being clamped in the gap formed between the observation window 5 and the front section 4211, on the other hand, when the clothes are put in, the gradually narrowing radial gap 4212 can avoid foreign matter on the clothes entering the outer drum 3 through the radial gap 4212, for example, the foreign matter can be coins and the like.

[0092] The small size end of the front inner drum mouth section 421 extends to the outer peripheral wall close to the rib observation window 5, which can minimize the gap between the outer periphery of the observation window 5 and the front section 4211.

[0093] As shown in Figure 12 Further, the front end of the front section 4211 is provided with a flange 423 bent towards the inner peripheral wall of the outer drum mouth 31, the opening of the radial gap 4212 at the axial two ends includes the front end opening of the gap and the rear end opening of the gap 4212, and the radial part of the flange 423 forms a covering part 4231 covering at least part of the front end opening of the gap.

[0094] The flange 423 is bent towards the inner peripheral wall of the outer drum mouth 31, and the radial part of the flange 423 can cover at least part of the front end opening of the gap, the radial part of the flange 423 as the covering part 4231, the setting of the covering part 4231 can on the one hand increase the area of the end of the front section 4211, prevent the gap between the observation window 5 and the front end from damaging the clothes, on the other hand, when the clothes are put in, it can further block the foreign matter on the clothes from entering the radial gap 4212.

[0095] As shown in Figure 12 In the embodiment of the application, the outer drum mouth 31 includes a front outer drum mouth section 311 distributed along the axial direction and a rear outer drum mouth section 312 for the small size end of the inner drum mouth 42 to extend into.

[0096] In the embodiment of the application, the outer drum mouth 31 includes a front outer drum mouth section 311 and a rear outer drum mouth section 312, the front section 4211 extends into the rear outer drum mouth section 312 and does not extend into the front outer drum mouth section 311;

[0097] Further, the front end of the front outer drum mouth section 311 is provided with a shielding part 313 shielding at least part of the front end opening of the gap. Specifically, the inner peripheral wall of the front end of the front outer drum mouth section 311 is radially protruding to form a shielding part 313, and the shielding part 313 protrudes to the same level as or higher than the height of the flange 423;

[0098] The shielding part 313 extends to the outer peripheral wall close to the observation window 5, so that the gap between the front outer cylinder mouth section 311 and the observation window 5 is as small as possible. The shielding part 313 can prevent the laundry in the inner cylinder 4 from entering the window cushion 2 through the gap between the shielding part 313 and the observation window 5, and can further prevent the laundry from entering the gap when the laundry is put in.

[0099] The window cushion in the third embodiment can be the window cushion 2 in the first embodiment. The outer cylinder opening in the third embodiment is formed by the outer cylinder front flange in the first embodiment and the annular flange in the second embodiment. The outer cylinder front flange in the first embodiment is the annular flange 1 in the second embodiment. The front end of the outer cylinder in the third embodiment is provided with the annular flange 1 in the second embodiment. The inner periphery of the annular flange 1 in the second embodiment forms the outer cylinder opening in the third embodiment.

[0100] The above description is only the preferred embodiments of the present application and is not intended to limit the present application in any form. Although the present application has been disclosed with the preferred embodiments, it is not intended to limit the present application. Any skilled person in the art can make some changes or modifications to the above-mentioned technical content without departing from the technical solution of the present application, and the equivalent embodiments with equivalent changes can be obtained. The embodiments in the above embodiments can be further combined or replaced. Any simple modification, equivalent change and modification made according to the technical essence of the present application to the above embodiments are still within the scope of the present application.

Claims

1. A window cushion assembly structure comprising a clamping groove provided on a window cushion and a clamping buckle provided on a front flange of an outer cylinder and clamped with the clamping groove, characterized in that, The buckle has an axial clamping portion extending axially along the front flange of the outer cylinder, and the clamping groove has a recess portion for clamping the axial clamping portion; The radial section of the buckle on the front flange of the outer cylinder is L-shaped, and the buckle further has a radial clamping portion extending radially along the front flange of the outer cylinder. The axial clamping portion and the radial clamping portion are distributed along the direction from the inner periphery to the outer periphery of the front flange of the outer cylinder. The radial clamping portion is arranged protruding from the end surface of the front flange of the outer cylinder. The axial clamping portion is formed by bending outward from the radial clamping portion to the front flange of the outer cylinder. The end surface of the front flange of the outer cylinder is provided with a clothes feeding opening. The end surface of the front flange of the outer cylinder protrudes axially to form a protruding portion coaxial with the clothes feeding opening and in the shape of a ring. The radial clamping portion is arranged on the free end of the protruding portion in the axial direction. The radial clamping portion includes an inner clamping segment protruding from the inner periphery of the protruding portion and an outer clamping segment protruding from the outer periphery of the protruding portion. The axial clamping portion extends into the protruding portion. The outer clamping segment, the protruding portion, and the end surface of the front flange of the outer cylinder form a plug-in slot. The clamping groove includes an inner groove segment and an outer groove segment distributed along the direction from the inner periphery to the outer periphery of the window pad. The axial clamping portion is clamped into the inner groove segment. The inner groove segment constitutes the recess portion of the clamping groove. The radial clamping portion is clamped into the outer groove segment. The outer groove segment is provided with an auxiliary recess portion for clamping at least part of the radial clamping portion. The groove bottom wall of the clamping groove, the clamping groove side wall located at the inner periphery of the window pad, and the clamping groove side wall provided with a slot form the inner groove segment.

2. The assembly of claim 1, wherein, The end surface of the window pad protrudes axially to form a protruding portion toward the front flange of the outer cylinder. The clamping groove provided with a slot is arranged on the protruding portion toward the front flange of the outer cylinder. The buckle enters the clamping groove through the slot and is clamped in the clamping groove.

3. The assembly of claim 1, wherein, The outer groove segment includes an inner segment and an outer segment distributed along the direction from the inner periphery to the outer periphery of the window pad. The inner clamping segment is clamped into the inner segment. A part of the clamping groove side wall located at the outer periphery is recessed into the clamping groove to form a recess portion. The groove bottom wall of the clamping groove, the clamping groove side wall located at the outer periphery of the window pad, and the side wall of the recess portion form the outer segment. The outer segment constitutes the auxiliary recess portion. The outer clamping segment is clamped into the outer segment. The bottom of the recess portion is inserted into the plug-in slot.

4. The assembly of claim 3, wherein, The clamping groove side wall provided with a slot extends radially toward the outer periphery of the window pad to form an abutting portion abutting against the end surface of the front flange of the outer cylinder. The abutting portion is arranged protruding from the clamping groove side wall located at the outer periphery of the window pad.

5. A drum-type washing machine characterized by The assembly structure includes the window pad according to any one of claims 1-4.

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