Lifting rib structure and roller washing machine

Abstract

The invention discloses a lifting rib structure and a roller washing machine. The lifting rib structure comprises a lifting rib, a containing cavity is formed in the lifting rib, the lifting rib is provided with two working faces which are oppositely arranged and used for lifting clothes, each working face is provided with a water inlet hole communicated with the containing cavity, a filtering structure is arranged in the containing cavity, and the filtering structure is provided with filtering holes overlapped with the water inlet holes. And the filtering holes are gradually narrowed in the direction from the outside to the inside of the accommodating cavity. The filtering structure is arranged in the storage cavity, and the filtering holes of the filtering structure are gradually narrowed from the outside of the storage cavity to the inside of the storage cavity, so that lint carried by clothes in the washing process can be filtered out and collected into the storage cavity, the lint is prevented from being in contact with the clothes again, the lint on the clothes can be effectively removed, and the washing efficiency is improved. The washing effect on the clothes is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of household appliances, and in particular relates to a lifting rib structure and a drum washing machine. Background Art

[0002] As people's living standards continue to improve, washing machines are becoming more and more important in the field of home appliances. The current washing machines on the market mainly include pulsator washing machines and front-loading washing machines. Front-loading washing machines are widely favored by users due to their structural advantages. For example, front-loading washing machines have beautiful appearance, more delicate and compact structure than pulsator washing machines, and better washing effect than pulsator washing machines. However, front-loading washing machines also have some defects, such as unsatisfactory lint cleaning effect.

[0003] At present, a filter device for collecting lint is installed in front of the drain valve of ordinary drum washing machines to prevent lint from clogging the drain valve. Although this method has a certain function of collecting lint, it also has shortcomings. The above drum washing machine can only filter lint during the drainage process, but cannot filter lint during the washing process. In addition, because the drainage of the above drum washing machine is discharged from the bottom, the lint floating on the upper part of the clothes and in the water all remain on the clothes and cannot be removed.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a lifting rib structure and a drum washing machine. By arranging a filtering structure in the storage cavity and setting the filtering holes of the filtering structure to gradually narrow from the outside to the inside of the storage cavity, the thread scraps carried by the clothes during the washing process can be filtered out and collected in the storage cavity, so as to prevent the thread scraps from contacting the clothes again, thereby achieving the purpose of effectively removing the thread scraps on the clothes and improving the washing effect of the clothes.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0007] The present invention provides a lifting rib structure, including a lifting rib, a storage cavity is arranged inside the lifting rib, the lifting rib has two oppositely arranged working surfaces for lifting clothes, each working surface is provided with a water inlet hole connected to the storage cavity, a filtering structure is provided in the storage cavity, the filtering structure has filtering holes arranged overlapping with the water inlet holes, and the filtering holes gradually narrow from the outside to the inside of the storage cavity.

[0008] Furthermore, the filter hole has a small-sized port and a large-sized port which are respectively circular, the large-sized port fits with the water inlet hole, and the axis of the small-sized port extends horizontally.

[0009] Furthermore, the filter hole also has an annular connecting wall connecting the small-sized port and the large-sized port, and the annular connecting wall includes a first wall section and a second wall section distributed from the top to the bottom of the lifting rib, and the first wall section and the second wall section are respectively arc-shaped protruding into the filter hole, and the curvature of the first wall section is greater than the curvature of the second wall section.

[0010] Furthermore, a cylindrical buffer portion is provided at the small-size port, which protrudes into the receiving cavity relative to the small-size port and is coaxially arranged with the small-size port. The radial dimension of the cylindrical buffer portion is equal to the radial dimension of the small-size port, and the small-size port is connected with the receiving cavity via the cylindrical buffer portion.

[0011] Furthermore, the filtration structure includes a filter net, which has two filter parts that are arranged in contact with the corresponding lifting rib working surfaces and a water outlet part connecting the bottoms of the two filter parts. The filter holes are arranged on the filter parts, and the water outlet part is provided with a water outlet hole that can be opened under the action of centrifugal force.

[0012] Furthermore, the water outlet is circular, and an elastic sealing cover is arranged in the water outlet. The outer peripheral wall of the sealing cover is connected to the inner peripheral wall of the water outlet. A cross cut is arranged on the sealing cover, and the cross cut divides the sealing cover into a plurality of sealing parts. The plurality of sealing parts squeeze each other at the cross cut to seal the water outlet, and the plurality of sealing parts separate from each other under the action of centrifugal force to open the water outlet.

[0013] The present invention also provides a drum washing machine, comprising a rotatable inner drum, wherein the inner drum is provided with a lifting rib structure provided by the above technical solution, and the storage cavity is connected with the inner drum through a water inlet hole.

[0014] Furthermore, an opening is provided at the bottom of the lifting rib, the lifting rib is buckled on the wall of the inner tube, a water hole located in the receiving cavity is provided on the wall of the inner tube, and the bottom of the water outlet, the lifting rib and the wall of the inner tube form a water outlet cavity connecting the water outlet hole and the water hole;

[0015] Preferably, a convex rib extending into the water outlet cavity is provided at the bottom of the water outlet portion, and the bottom of the convex rib abuts against the wall of the inner cylinder.

[0016] Furthermore, a mounting cavity independent of the receiving cavity is provided in the lifting rib, and the mounting cavity is provided at least at one end of the receiving cavity extending along the axial direction of the inner tube, a clamping component is provided at the bottom of the mounting cavity, and a clamping hole is provided on the wall of the inner tube, and the clamping component is clamped into the clamping hole;

[0017] Preferably, the clamping component includes a screw having a nut and a stud, the screw is arranged outside the installation cavity, the stud is screwed to the bottom of the installation cavity, the clamping hole includes a through hole, a guide section and a clamping section, the nut passes through the inner tube through the through hole, the stud slides in the guide section, and slides into the clamping section to clamp with the clamping section.

[0018] Furthermore, the clamping component also includes a guide cap and a first spring, a nut is arranged at the bottom of the guide cap, a stud passes through the top of the guide cap and is screwed to the bottom of the installation cavity, and the first spring is sleeved on the stud and compressed between the nut and the top of the guide cap;

[0019] Preferably, the guide section is L-shaped, and includes a first section connected to the perforation and a second section connected to the clamping section, and the clamping section and the first section are located on the same side of the second section and are parallel to each other;

[0020] Further preferably, a second spring extending axially along the inner cylinder is provided in the installation cavity, and the first end of the second spring is connected to the inner wall of the installation cavity; a protrusion located on the inner side of the guide section and parallel to the second section is provided on the wall of the inner cylinder, and the protrusion is inserted into the installation cavity and abuts against the second end of the second spring.

[0021] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0022] By providing a filtering structure in the storage cavity and setting the filtering holes of the filtering structure to gradually narrow from the outside to the inside of the storage cavity, the lint carried by the clothes during the washing process can be filtered out and collected into the storage cavity, preventing the lint from contacting the clothes again, thereby effectively removing the lint on the clothes and improving the washing effect of the clothes.

[0023] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0025] Figure 1 is a schematic structural diagram of a drum washing machine provided by an embodiment of the present invention;

[0026] Figure 2 is a first cross-sectional view of the lifting rib structure provided by an embodiment of the present invention;

[0027] Figure 3 is a second cross-sectional view of the lifting rib structure provided by an embodiment of the present invention;

[0028] Figure 4 is a schematic diagram of the structure of the filter hole provided by an embodiment of the present invention;

[0029] Figure 5is a schematic diagram of the assembly of the sealing cover and the water outlet provided by an embodiment of the present invention;

[0030] Figure 6 is a schematic structural diagram of a clamping component provided by an embodiment of the present invention;

[0031] Figure 7 It is a structural schematic diagram of a clamping hole provided in an embodiment of the present invention.

[0032] Icons: 1-inner cylinder; 11-water hole; 12-clamping hole; 121-perforation; 122-guide section; 1221-first section; 1222-second section; 123-clamping section; 13-raised part; 2-lifting rib; 21-storage cavity; 211-working surface; 22-water inlet hole; 23-installation cavity; 231-second spring; 3-filter structure; 31-filter screen; 311-filter part; 312-filter hole; 3121-large size port; 3122-small-size port; 3123-annular connecting wall; 3123a-first wall section; 3123b-second wall section; 313-water outlet; 3131-convex rib; 314-water outlet hole; 3141-cross cut; 3142-sealing cover; 3142a-sealing part; 315-cylindrical buffer part; 4-water outlet chamber; 5-clamping component; 51-screw; 511-nut; 512-stud; 52-guide cap; 53-first spring.

[0033] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for 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 invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0035] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] like Figure 1-4 As shown, the present invention provides a lifting rib structure, including a lifting rib 2, a storage cavity 21 is provided in the lifting rib 2, the lifting rib 2 has two oppositely arranged working surfaces 211 for lifting clothes, each working surface 211 is provided with a water inlet hole 22 connected to the storage cavity 21, a filtering structure 3 is provided in the storage cavity 21, the filtering structure 3 has a filtering hole 312 arranged to overlap with the water inlet hole 22, and the filtering hole 312 gradually narrows from the outside to the inside of the storage cavity 21.

[0038] In an embodiment of the present invention, by providing a filter structure 3 in the storage cavity 21, and setting the filter holes 312 of the filter structure 3 to gradually narrow from the outside to the inside of the storage cavity 21, it is possible to filter out the lint carried by the clothes during the washing process and collect them in the storage cavity 21, thereby preventing the lint from contacting the clothes again, thereby effectively removing the lint on the clothes and improving the washing effect on the clothes.

[0039] The lifting rib structure is used for a drum washing machine, which comprises a casing, an outer drum arranged in the casing and an inner drum 1 rotatably arranged in the outer drum. During washing, the outer drum is a water-containing drum, or the inner drum 1 is a partially hole-free drum and the inner drum 1 is a water-containing drum.

[0040] Specifically, the lifting rib 2 is long and extends along the axial direction of the inner tube 1 on the inner side of the inner tube 1 wall. The cross section of the lifting rib 2 along the axial direction of the inner tube 1 and the cross section along the radial direction of the inner tube 1 are respectively trapezoidal. The bottom of the lifting rib 2 is open. The lifting rib 2 is buckled on the inner side of the inner tube wall. The lifting rib 2 can be made of hard plastic. It should be noted that the side where the lifting rib 2 is connected to the inner tube wall is the bottom of the lifting rib 2.

[0041] There are multiple lifting ribs 2, which are evenly distributed along the circumference of the inner drum 1. During the rotation of the inner drum 1, the inner drum 1 drives the multiple lifting ribs 2 to rotate around the axis of the inner drum 1. The multiple lifting ribs 2 contact the clothes alternately. The lifting ribs 2 lift the clothes and make the clothes fall from a height, forming a falling effect to achieve washing and rinsing of the clothes.

[0042] The filter structure 3 has a plurality of filter holes 312, and the plurality of filter holes 312 include a plurality of first filter holes and a plurality of second filter holes. The two working surfaces 211 are respectively the first working surface and the second working surface. The first filter holes are arranged overlapping with the water inlet holes 22 on the first working surface, and the second filter holes are arranged overlapping with the water inlet holes 22 on the second working surface. When the inner cylinder 1 rotates clockwise, the water flow in the inner cylinder 1 flows into the first filter holes from the water inlet holes 22 on the first working surface. When the inner cylinder 1 rotates counterclockwise, the water flow in the inner cylinder 1 flows into the second filter holes from the water inlet holes 22 on the second working surface.

[0043] For example, when the inner cylinder 1 rotates clockwise, the water flow in the inner cylinder 1 flows into the first filter hole from the water inlet hole 22 on the first working surface. Since the first filter hole gradually narrows from the outside to the inside of the storage chamber 21, the flow rate of the water flow will become faster and faster during the process of the water flow passing through the first filter hole. As a result, as long as one end of the wire scraps enters the first filter hole, no matter what form the wire scraps are in, they will be quickly sucked through the first filter hole, thereby allowing the wire scraps to enter the storage chamber 21; and, since the second filter hole gradually narrows from the outside to the inside of the storage chamber 21, the flow rate of the water flow will become slower and slower during the process of the water flow passing through the second filter hole. In addition, it is difficult for the flexible wire scraps to maintain a straight state. Therefore, it is difficult for the wire scraps that enter the storage chamber 21 to flow out of the storage chamber 21 through the second filter hole, thereby allowing the storage of the wire scraps by the storage chamber 21.

[0044] like Figure 4 As shown, in the embodiment of the present invention, the filter hole 312 has a circular small-sized port 3122 and a large-sized port 3121 , the large-sized port 3121 is fitted with the water inlet hole 22 , and the axis of the small-sized port extends horizontally.

[0045] In the embodiment of the present invention, when the inner cylinder 1 rotates in one direction, the water flow and the wire scraps first enter the filter hole 312 through the large-sized port 3121, and then enter the storage chamber 21 through the small-sized port 3122;

[0046] The small-sized port 3122 and the large-sized port 3121 are circular ports, which can reduce the resistance to the flow of water and wire scraps, speed up the flow of water and wire scraps through the filter hole 312, and improve the storage efficiency of the storage chamber 21 for wire scraps;

[0047] The axis of the small-size port 3122 is set to extend horizontally, which is consistent with the tangential direction of the movement of the lifting rib 2, so as to speed up the suction of wire scraps and allow the wire scraps to quickly pass through the filter hole 312 and enter the storage chamber 21.

[0048] Furthermore, the filter hole 312 also has an annular connecting wall 3123 connecting the small-sized port 3122 and the large-sized port 3121. The annular connecting wall 3123 includes a first wall section 3123a and a second wall section 3123b distributed from the top to the bottom of the lifting rib 2. The first wall section 3123a and the second wall section 3123b are respectively arc-shaped protruding into the filter hole 312, and the curvature of the first wall section 3123a is greater than the curvature of the second wall section 3123b.

[0049] The first wall section 3123a and the second wall section 3123b are respectively arc-shaped protruding into the filter hole 312. On the one hand, the two walls can guide the water flow and wire chips entering the filter hole 312 from the large-sized port 3121, and can guide the water flow and wire chips to the small-sized port 3122, thereby accelerating the water flow and wire chips to pass through the filter hole 312; on the other hand, the friction resistance between the two walls and the water flow and wire chips is reduced, thereby accelerating the water flow and wire chips to pass through the filter hole 312.

[0050] Common forms of wire scraps include straight wire scraps, slightly curved wire scraps and heavily curved wire scraps. Figure 4 A represents straight wire scraps, B represents slightly curved wire scraps, and C represents heavily curved wire scraps. Regardless of whether it is straight wire scraps, slightly curved wire scraps, or heavily curved wire scraps, as long as one end of the wire scraps enters the filter hole 312, the water flow can accelerate the passage of the wire scraps, and the other end of the wire scraps encounters less resistance. The filter hole of this solution can adapt to wire scraps with different degrees of curvature.

[0051] Furthermore, a cylindrical buffer portion 315 is provided at the small-size port 3122, which protrudes into the storage chamber 21 relative to the small-size port 3122 and is coaxially arranged with the small-size port 3122. The radial dimension of the cylindrical buffer portion 315 is equal to the radial dimension of the small-size port 3122, and the small-size port 3122 is connected to the storage chamber 21 via the cylindrical buffer portion 315.

[0052] The cylindrical buffer portion 315 is open at both ends, one end opening of the cylindrical buffer portion 315 is arranged to overlap with the small-size port 3122, and the other end opening is connected to the storage chamber 21; the cylindrical buffer portion 315 has a certain extension length in the axial direction of the small-size port 3122, which can buffer the wire scraps and turbulent water flow coming out of the small-size port 3122, prevent the water flow from carrying the wire scraps into the storage chamber 21 and splashing everywhere, and can effectively prevent the wire scraps from flowing out of the storage chamber when the water flow rotates in the opposite direction.

[0053] like Figure 2 , Figure 3 and Figure 5As shown, in an embodiment of the present invention, the filter structure 3 includes a filter screen 31, the filter screen 31 has two filter parts 311 that are arranged in contact with the corresponding working surfaces of the lifting ribs 2 and a water outlet part 313 connecting the bottoms of the two filter parts 311, the filter holes 312 are arranged on the filter parts 311, and the water outlet part 313 is provided with a water outlet hole 314 that can be opened under the action of centrifugal force.

[0054] In the embodiment of the present invention, the filter screen 31 is made of a flexible material such as silicone or rubber; the filter screen 31 extends in the receiving cavity 21 along the axial direction of the inner cylinder 1, and the cross section of the filter screen 31 along the axial direction of the inner cylinder 1 and the cross section along the radial direction of the inner cylinder 1 are trapezoidal;

[0055] The front and rear ends of the filter screen 31 extending axially are respectively provided with openings, the top of the filter screen 31 is arranged to fit with the top of the lifting rib 2, and is used to connect the tops of the two filter screens 31, and the left and right sides of the filter screen 31 are respectively a first filter part 311 fitted with the first working surface of the lifting rib 2 and a second filter part 311 fitted with the second working surface of the lifting rib 2, the first filter hole is provided on the first filter part 311, and the second filter hole is provided on the second filter part 311.

[0056] In order to facilitate the removal of moisture from the collected lint, a water outlet 313 is provided at the bottom of the filter 31, and a water outlet hole 314 is provided on the water outlet 313. When the washing machine is dehydrating, the water outlet can be opened under the action of centrifugal force and closed after the centrifugal force disappears.

[0057] Furthermore, the water outlet hole 314 is circular, and an elastic sealing cover 3142 is provided in the water outlet hole 314. The outer peripheral wall of the sealing cover 3142 is connected to the inner peripheral wall of the water outlet hole 314. A cross cut 3141 is provided on the sealing cover 3142, and the cross cut 3141 divides the sealing cover 3142 into a plurality of sealing parts 3142a. The plurality of sealing parts 3142a squeeze each other at the cross cut 3141 to seal the water outlet hole 314, and the plurality of sealing parts 3142a separate from each other under the action of centrifugal force to open the water outlet hole 314.

[0058] The outer periphery of the sealing cover 3142 is connected to the inner periphery of the water outlet hole 314 in the following manner: the outer periphery of the sealing cover 3142 is integrally formed with the inner periphery of the water outlet hole 314, that is, the sealing cover 3142 is integrally formed with the filter screen 31; or the outer periphery of the sealing cover 3142 is detachably integrally formed with the inner periphery of the water outlet hole 314;

[0059] Preferably, in order to increase the sealing performance between the sealing cover 3142 and the water outlet hole 314, the outer periphery of the sealing cover 3142 and the inner periphery of the water outlet hole 314 are integrally formed, and the sealing cover 3142 is made of materials such as silicone and rubber;

[0060] The water outlet hole 314 is circular, so the sealing cover 3142 is also circular; specifically, the cross cut 3141 includes a transverse cut and a longitudinal cut, and the transverse cut and the longitudinal cut divide the sealing cover 3142 into four sealing parts 3142a. Since the sealing cover 3142 is made of silicone or rubber, the four sealing parts 3142a formed after the sealing cover 3142 is cut will still squeeze each other, and seal the water outlet hole 314 when not subjected to centrifugal force, so that the water outlet hole 314 does not leak water. When the four sealing parts 3142a are subjected to a large centrifugal force, the four sealing parts 3142a will move away from each other, revealing gaps, thereby opening the water outlet hole 314, allowing water to flow out of the storage chamber 21;

[0061] The water outlet portion 313 has a certain thickness, so that the water outlet hole 314 has a certain depth in its own axial direction. The thickness dimension of the sealing cover 3142 in the axial direction of the water outlet hole 314 is set to be smaller than the depth dimension of the water outlet hole 314, so that the thickness of the sealing cover 3142 is relatively thin, and the four sealing portions 3142a are easy to move away from each other during dehydration, exposing a gap, so that the water outlet hole 314 is easy to open. Specifically, the sealing cover 3142 is arranged at the top of the water outlet hole 314, and there is a gap between the sealing cover 3142 and the bottom of the water outlet hole 314, or the sealing cover 3142 is arranged at the bottom of the water outlet hole 314, and there is a gap between the sealing cover 3142 and the top of the water outlet hole 314.

[0062] like Figure 3 , Figure 7 As shown, in the embodiment of the present invention, the bottom of the lifting rib 2 is provided with an opening, the lifting rib 2 is buckled on the wall of the inner tube 1, the wall of the inner tube 1 is provided with a water hole 11 located in the storage cavity 21, and the bottom of the water outlet part 313, the lifting rib 2 and the wall of the inner tube 1 form a water outlet cavity 4 connecting the water outlet hole 314 and the water hole 11.

[0063] In the embodiment of the present invention, the water in the storage chamber 21 enters the water outlet chamber 4 through the water outlet hole 314, and the water entering the water outlet chamber 4 flows out through the water hole 11. The arrangement of the water outlet chamber 4 avoids the situation that when the water outlet portion 313 is arranged close to the wall of the inner cylinder 1, the water outlet hole 314 and the water hole 11 need to be arranged overlappingly to allow the water to flow out, so that the water can flow out of the storage chamber 21 smoothly.

[0064] The bottom of the water outlet 313 is provided with a convex rib 3131 protruding into the water outlet cavity 4, the bottom of the convex rib 3131 abuts against the wall of the inner cylinder 1, and the convex rib 3131 supports the water outlet 313 on the wall of the inner cylinder 1 to prevent the water outlet 313 from being deformed by the water pressure and fitting on the wall of the inner cylinder 1; specifically, a plurality of convex ribs 3131 are provided on the bottom of the water outlet 313, each convex rib 3131 is in a long strip shape and extends along the axial direction of the inner cylinder 1, and the plurality of convex ribs 3131 are spaced and arranged in parallel, or the plurality of convex ribs 3131 are distributed in a dotted manner. Preferably, the plurality of convex ribs 3131 are distributed in a dotted manner, which can save materials while ensuring the function.

[0065] Furthermore, in order to facilitate the water to flow out of the lifting rib 2 during the rotation process, a filter hole 312 of the present invention may be provided at the bottom of the water outlet 313, so that the water can be discharged but the wire scraps cannot be discharged, thereby speeding up the collection of the wire scraps.

[0066] like Figure 2 , Figure 6 and Figure 7 As shown, in the embodiment of the present invention, an installation cavity 23 independent of the receiving cavity 21 is further provided in the lifting rib 2, and an installation cavity 23 is provided at least at one end of the receiving cavity 21 extending axially along the inner tube 1, and a clamping component 5 is provided at the bottom of the installation cavity 23, and a clamping hole 12 is provided on the wall of the inner tube 1, and the clamping component 5 is clamped into the clamping hole 12.

[0067] In the embodiment of the present invention, the clamping component 5 at the bottom of the installation cavity 23 is clamped with the clamping hole 12 on the wall of the inner cylinder 1, so that the lifting rib 2 can be detachably installed on the inner cylinder 1, thereby facilitating the removal of wire scraps in the storage cavity 21.

[0068] Furthermore, the lifting rib 2 includes a storage part and two reinforcement parts. The first reinforcement part, the storage part and the second reinforcement part are distributed in sequence along the axial direction of the inner tube 1. The storage part is hollow inside to form a storage cavity 21. The reinforcement part is hollow inside to form an installation cavity 23. The installation cavities 23 are distributed at both ends of the storage cavity 21 extending along the axial direction of the inner tube 1. The installation cavities 23 are not connected to the storage cavity 21. The reinforcement part improves the structural strength of the lifting rib 2 and facilitates the installation of the clamping component 5.

[0069] Furthermore, the clamping component 5 includes a screw 51 having a nut 511 and a stud 512, the screw 51 is arranged outside the installation cavity 23, the stud 512 is screwed to the bottom of the installation cavity 23, the clamping hole 12 includes a through hole 121, a guide section 122 and a clamping section 123, the nut 511 passes through the inner tube 1 through the through hole 121, the stud 512 slides in the guide section 122, and slides into the clamping section 123 to clamp with the clamping section 123.

[0070] During installation, the stud 512 is fixed to the bottom of the installation cavity 23, and the nut 511 passes through the through hole 121 from the inside of the inner tube 1 to the outside of the inner tube 1. The stud 512 slides in the guide section 122 to the clamping section 123 and is clamped with the clamping section 123. The guide section 122 has a guiding effect on the stud 512 being clamped into the clamping section 123, so that the stud 512 can be accurately clamped into the clamping section 123.

[0071] Specifically, four engaging holes 12 are provided on the wall of the inner cylinder 1 to enhance the assembly strength between the lifting rib 2 and the wall of the inner cylinder 1; all the guide sections 122 in the four engaging holes 12 extend in the same direction, and all the engaging sections 123 extend in the same direction.

[0072] The clamping component 5 also includes a guide cap 52 and a first spring 53. The nut 511 is arranged at the bottom of the guide cap 52. The stud 512 passes through the top of the guide cap 52 and is screwed to the bottom of the installation cavity 23. The first spring 53 is sleeved on the stud 512 and compressed between the nut 511 and the top of the guide cap 52.

[0073] The guide cap 52 is a part of a spherical shell or a part similar to a spherical shell. An opening is provided at the top center of the guide cap 52 for the stud 512 to pass through. It should be noted that the through hole 121 of the clamping hole 12 is for the larger one of the nut 511 and the guide cap 52 to pass through.

[0074] When the guide cap 52 passes through the through hole 121, the guide cap 52 can be easily passed through the wall of the inner tube 1, and the arc portion of the guide cap 52 abuts against the outer side of the wall of the inner tube 1, and the moving friction is small;

[0075] The elastic force of the first spring 53 causes the guide cap 52 to always be pressed against the outer side of the wall of the inner tube 1 , so that the lifting rib 2 and the inner tube 1 are firmly fastened.

[0076] Furthermore, the guide section 122 is L-shaped, and includes a first section 1221 connected to the through hole 121 and a second section 1222 connected to the clamping section 123. The clamping section 123 and the first section 1221 are located on the same side of the second section 1222 and are parallel to each other; specifically, the first section 1221 extends along the axial direction of the inner tube 1.

[0077] Furthermore, a second spring 231 extending axially along the inner cylinder 1 is provided in the installation cavity 23, and a first end of the second spring 231 is connected to an inner wall of the installation cavity 23; a protrusion 13 located on the inner side of the guide section 122 and parallel to the second section 1222 is provided on the wall of the inner cylinder 1, and the protrusion 13 is inserted into the installation cavity 23 and abuts against a second end of the second spring 231.

[0078] The second spring 231 is clamped between the inner wall of the installation cavity 23 and the protrusion 13. When the stud 512 slides in the first section 1221 of the guide section 122, as the stud 512 moves, the distance between the inner wall of the installation cavity 23 and the protrusion 13 decreases, and the second spring 231 is compressed; when the stud 512 slides in the second section 1222 of the guide section 122, the second spring 231 remains in a compressed state and moves from the first section 1221 to the clamping section 123. When the stud 512 is clamped into the clamping section 123, the distance between the inner wall of the installation cavity 23 and the protrusion 13 increases, the second spring 231 extends, and the elastic force of the second spring 231 causes the stud 512 to be clamped in the clamping section 123.

[0079] The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation scheme in the above embodiment can also be further combined or replaced. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the solution of the present invention.

Claims

1. A lifting rib structure, comprising a lifting rib, a storage cavity is provided in the lifting rib, the lifting rib has two oppositely arranged working surfaces for lifting clothes, each working surface is provided with a water inlet hole connected to the storage cavity, characterized in that: A filter structure is arranged in the storage cavity. The filter structure has a filter hole which is arranged to overlap with the water inlet hole. The filter hole gradually narrows from the outside to the inside of the storage cavity.

2. The lifting rib structure according to claim 1, characterized in that: The filter hole has a small-sized port and a large-sized port which are respectively circular, the large-sized port is fitted with the water inlet hole, and the axis of the small-sized port extends horizontally.

3. The lifting rib structure according to claim 2, characterized in that: The filter hole also has an annular connecting wall connecting the small-sized port and the large-sized port. The annular connecting wall includes a first wall section and a second wall section distributed from the top to the bottom of the lifting rib. The first wall section and the second wall section are respectively arc-shaped protruding into the filter hole, and the curvature of the first wall section is greater than the curvature of the second wall section.

4. The lifting rib structure according to claim 3, characterized in that: A cylindrical buffer portion is provided at the small-sized port, which protrudes into the receiving cavity relative to the small-sized port and is coaxially arranged with the small-sized port. The radial dimension of the cylindrical buffer portion is equal to the radial dimension of the small-sized port. The small-sized port is connected with the receiving cavity via the cylindrical buffer portion.

5. The lifting rib structure according to any one of claims 1 to 4, characterized in that: The filtration structure includes a filter screen having two filter parts that are arranged in contact with the corresponding lifting rib working surfaces and a water outlet part connecting the bottoms of the two filter parts. The filter holes are arranged on the filter parts, and the water outlet part is provided with a water outlet hole that can be opened under the action of centrifugal force.

6. The lifting rib structure according to claim 5, characterized in that: The water outlet is circular, and an elastic sealing cover is arranged inside the water outlet. The outer peripheral wall of the sealing cover is connected to the inner peripheral wall of the water outlet. A cross cut is arranged on the sealing cover, and the cross cut divides the sealing cover into a plurality of sealing parts. The plurality of sealing parts squeeze each other at the cross cut to seal the water outlet, and the plurality of sealing parts separate from each other under the action of centrifugal force to open the water outlet.

7. A drum washing machine, comprising a rotatable inner drum, characterized in that: The inner cylinder is provided with a lifting rib structure as claimed in any one of claims 1 to 6, and the storage cavity is connected with the inner cylinder through the water inlet hole.

8. The drum washing machine according to claim 7, characterized in that: The bottom of the lifting rib is provided with an opening, the lifting rib is buckled on the wall of the inner cylinder, the wall of the inner cylinder is provided with a water hole located in the receiving cavity, and the bottom of the water outlet part, the lifting rib and the wall of the inner cylinder form a water outlet cavity connecting the water outlet hole and the water hole; Preferably, a convex rib protruding into the water outlet cavity is provided at the bottom of the water outlet portion, and the bottom of the convex rib abuts against the wall of the inner cylinder.

9. The drum washing machine according to claim 8, characterized in that: The lifting rib is also provided with an installation cavity which is independent of the storage cavity. The storage cavity is provided with an installation cavity at at least one end extending along the axial direction of the inner tube. A clamping component is provided at the bottom of the installation cavity. A clamping hole is provided on the wall of the inner tube. The clamping component is clamped into the clamping hole. Preferably, the clamping component includes a screw having a nut and a stud, the screw is arranged outside the installation cavity, the stud is screwed to the bottom of the installation cavity, the clamping hole includes a through hole, a guide section and a clamping section, the nut passes through the inner tube through the through hole, the stud slides in the guide section, and slides into the clamping section to clamp with the clamping section.

10. The drum washing machine according to claim 9, characterized in that: The clamping component also includes a guide cap and a first spring. The nut is arranged at the bottom of the guide cap. The stud passes through the top of the guide cap and is screwed to the bottom of the installation cavity. The first spring is sleeved on the stud and compressed between the nut and the top of the guide cap. Preferably, the guide section is L-shaped, and includes a first section connected to the perforation and a second section connected to the clamping section, and the clamping section and the first section are located on the same side of the second section and are parallel to each other; Further preferably, a second spring extending axially along the inner cylinder is provided in the installation cavity, and the first end of the second spring is connected to the inner wall of the installation cavity; a protrusion located on the inner side of the guide section and parallel to the second section is provided on the wall of the inner cylinder, and the protrusion is inserted into the installation cavity and abuts against the second end of the second spring.

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