A triangular frame for a drum washing machine and a drum washing machine

Abstract

The application provides a triangular frame for a drum washing machine and the drum washing machine, and the triangular frame comprises a main body part, a plurality of supporting arms arranged at intervals along the circumference of the main body part, and a first connecting piece connected with the supporting arms and the main body part to detachably connect the supporting arms on the main body part. The supporting arms and the main body part in the triangular frame are arranged in a split structure, and when the specifications of the inner drum of the washing machine change, only the supporting arms and the main body part matched with the different diameters of the inner drum of the washing machine need to be selected and assembled, so that the overall structure of the triangular frame does not need to be redesigned every time the inner drum of different specifications is produced, and the production efficiency is greatly improved. During installation and use, the overall strength of the triangular frame is not changed, so that the service life of the triangular frame can be prolonged. In addition, only part of the structure of the triangular frame needs to be replaced during maintenance, so that the maintenance cost is greatly reduced.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of drum washing machines, in particular, relates to a tripod for a drum washing machine and a drum washing machine. BACKGROUND

[0002] The drum washing machine is widely promoted in the washing machine varieties due to its small damage to clothes, energy saving and water saving. In order to ensure that the washing machine can work stably during washing and dehydration, the tripod structure is used to fix the washing drum on the rotating shaft. However, the existing washing machine tripod is fixed in specification, that is, a specific washing machine tripod can only match a specific washing machine inner drum. When the specification of the washing machine inner drum changes, the tripod needs to be reprocessed to match the new washing machine inner drum, resulting in low production efficiency.

[0003] For example, the Chinese patent with application number 201611048243.8 discloses an inner drum tripod and a drum washing machine, wherein the three supporting arms of the tripod are designed in one body with the body. Therefore, the tripod of this specification is only suitable for a specific washing machine inner drum.

[0004] To solve the above problems, some improvements have been made in the prior art. For example, the Chinese patent with application number 202021453170.2 discloses an adjustable washing machine tripod. When the washing machine tripod needs to be replaced, the tripod support is only needed to be aligned with the bottom end of the drum washing machine to place the position of the tripod. By pressing the fixed baffle, the extension support is pulled out. When the length is matched, the spring baffle can be used to fix the length of the extension support. In this way, the time for replacing and finding a matching tripod is reduced. Although this patent can adjust the length of the tripod by using the telescopic property of the extension support, the production efficiency is improved. However, when the extension support is extended, the connection position of the tripod support and the extension support set in the tripod support is easy to shake during the rotation of the inner drum. The inside of the tripod support also becomes a hollow structure during this process. Even if a damping spring is arranged inside, the structural strength of the tripod support is greatly reduced, thereby reducing the supporting capacity and shortening the service life of the tripod support.

[0005] Therefore, the present application is proposed. SUMMARY

[0006] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art. The present application provides a lifting caster with simple structure, stable use, safety and reliability.

[0007] The present application provides a household appliance installed with the above lifting caster.

[0008] To solve the above technical problems, the basic idea of the technical solution of the present application is as follows:

[0009] A triangular frame for a drum washing machine, comprising:

[0010] a main body part;

[0011] a plurality of support arms arranged at intervals along the circumference of the main body part;

[0012] a first connecting member connected with the support arms and the main body part to detachably connect the support arms to the main body part.

[0013] In the above scheme, by arranging the support arms and the main body part in the triangular frame into a split structure, when the specifications of the inner drum of the washing machine change, only the support arms and the main body part that match the different diameters of the inner drum of the washing machine need to be selected for assembly, avoiding the need to redesign the overall structure of the triangular frame every time a different specification of the inner drum is produced, greatly improving production efficiency; during installation and use, the overall strength of the triangular frame will not change, so the service life of the triangular frame can be extended; in addition, only part of the structure of the triangular frame needs to be replaced during maintenance, greatly reducing maintenance costs.

[0014] Further, a plurality of first connecting joints with different orientations are arranged at intervals along the circumference of the main body part, and the support arms are connected one by one with the first connecting joints.

[0015] Preferably, one end of the support arm towards the main body part is provided with a first penetrating part, and the first connecting member is detachably connected with the first connecting joint by penetrating through the first penetrating part.

[0016] Further, the first connecting joint is provided with a first connecting hole at the end towards the outside of the main body part for the first connecting member to pass through, and the first connecting hole is arranged extending from the end face of the first connecting joint towards the inside of the main body part.

[0017] In the above scheme, by extending the first connecting hole, its own axial length can be increased, and when the first connecting member is connected with the first connecting hole with increased axial length during installation, the strength of the connection position of the support arm and the main body part can be strengthened, making the overall structure of the triangular frame more stable.

[0018] Further, the diameter of the first connecting hole gradually decreases in the direction towards the inside of the main body part.

[0019] Further, the support arm has an extension length, and the support arm is provided with a second connecting joint at the end away from the main body part for assembly with the inner drum of the drum washing machine.

[0020] Further, the second connecting joint is provided with a second connecting hole at the end thereof facing the outside of the support arm, and the second connecting hole extends from the end face of the second connecting joint facing the outside of the support arm to the inside of the support arm.

[0021] Further, the diameter of the second connecting hole gradually decreases in the direction towards the inside of the support arm.

[0022] A drum washing machine comprises an inner drum, and the bottom wall of the inner drum is provided with the tripod for drum washing machine.

[0023] Further, the bottom wall is provided with a mounting groove recessed from the bottom wall in the direction towards the inside of the inner drum, and the tripod for drum washing machine is arranged in the mounting groove.

[0024] Further, the circumferential edge of the bottom wall is provided with a protruding portion extending outward in the direction perpendicular to the bottom wall, and the protruding portion is provided with a mounting hole assembled with the tripod for drum washing machine through a second connecting piece.

[0025] Preferably, the protruding portion is an annular flange extending outward in the direction perpendicular to the bottom wall from the circumferential edge of the bottom wall.

[0026] Compared with the prior art, the technical scheme has the following beneficial effects:

[0027] The tripod for drum washing machine has the support arm and the main body arranged in a split structure, so that when the specifications of the inner drum of the washing machine change, only the support arm and the main body matched with the different diameters of the inner drum of the washing machine need to be selected and assembled, thereby avoiding the need to redesign the overall structure of the tripod every time the inner drum of different specifications is produced, and greatly improving the production efficiency.

[0028] The first connecting hole is extended, so that the axial length of the first connecting hole is increased, and the first connecting piece is connected to the first mounting hole with the increased axial length during installation, so that the strength of the connecting position of the support arm and the main body is increased, and the overall structure of the tripod is more stable.

[0029] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0030] The accompanying drawings, which are part of this application, serve to further understand the present application, and the schematic embodiments of the present application and the descriptions thereof are used to explain the present application, but do not constitute undue limitations on the present application. Obviously, the drawings in the following description are only some embodiments, and other drawings can be obtained from these drawings without creative labor for those skilled in the art. In the drawings:

[0031] Figure 1 A structure diagram of a triangular frame for a drum washing machine according to the present application.

[0032] Figure 2 An exploded view of a structure of a triangular frame for a drum washing machine according to the present application.

[0033] Figure 3 A structure diagram of a cooperation between an inner drum and a triangular frame of a drum washing machine according to the present application.

[0034] Figure 4 An exploded view of a cooperation between an inner drum and a triangular frame of a drum washing machine according to the present application.

[0035] In the drawings: 100, a drum washing machine; 10, a triangular frame; 11, a main body part; 111, a first connecting joint; 112, a first connecting hole; 12, a support arm; 121, a first passing part; 122, a second connecting joint; 123, a second connecting hole; 13, a first connecting piece; 20, an inner drum; 21, a bottom wall; 22, a mounting groove; 23, an annular flange; 24, a mounting hole; 25, a second connecting piece; 26, a connecting column groove.

[0036] It should be noted that these drawings and written descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments will be described clearly and completely below with reference to the drawings of the embodiments of the present application. The following embodiments are used to illustrate the present application, but not to limit the scope of the present application.

[0038] In the description of the present application, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0039] 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, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be 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.

[0040] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0041] As Figures 1 to 4 shown, a triangular support for a drum washing machine, comprising: a main body part 11; a plurality of support arms 12 are arranged at intervals along the circumference of the main body part 11; a first connecting piece 13 is connected with the support arm 12 and the main body part 11, so as to detachably connect the support arm 12 on the main body part 11.

[0042] The existing drum washing machine, the triangular support is designed as a whole, and the triangular support as a key component of the drum washing machine needs to be redesigned when the specification of the drum washing machine changes each time, thereby reducing the production efficiency; and when repairing, the whole triangular support needs to be replaced, which has high maintenance cost. Although the prior art discloses a triangular support with an adjusting function, when the triangular support needs to be replaced, the triangular support support is placed at the position of the triangular support at the bottom end of the drum washing machine, the extension support is pulled out by pressing the fixed baffle, and when the length is matched, the length of the extension support can be fixed by the spring baffle, so that the time for replacing and finding the matched triangular support is reduced. Although the telescopic extension support can be used to adjust the length of the triangular support and improve the production efficiency; when the extension support is extended, the connection position of the triangular support and the extension support set in the triangular support inside is easy to shake in the process of the inner tube rotating, the inside of the triangular support also becomes a hollow structure in this process, even if a damping spring is arranged inside, the structural strength of the triangular support is greatly reduced, thereby reducing the supporting capacity and shortening the service life of the triangular support.

[0043] In the above scheme, by setting the support arm 12 and the main body part 11 in the tripod 10 into a split structure, when the specifications of the washing machine inner drum 20 change, only the matching support arm 12 and main body part 11 need to be assembled according to the different diameters of the washing machine inner drum 20, avoiding the need to redesign the overall structure of the tripod 10 every time a different specification of inner drum 20 is produced, greatly improving production efficiency; during installation and use, the first connecting piece 13 is directly used to install the support arm 12 on the main body part 11, without changing the support strength inside the support arm 12, thus ensuring the strength of the overall structure of the tripod 10, thereby prolonging the service life of the tripod 10; in addition, only part of the structure of the tripod 10 needs to be replaced during maintenance, greatly reducing maintenance costs.

[0044] It can be understood that the support arm 12 of the tripod 10 can be designed into two, three, four or even more, and as for the currently designed drum washing machine 100, the number of support arms 12 is mostly designed to be three, that is, three support arms 12 are evenly distributed on the outer periphery of the main body part 11, and each support arm 12 is detachably connected with the main body part 11. The detachable connection can adopt any one of pin connection, threaded connection, clamping connection, etc.

[0045] In some embodiments, a plurality of first connecting joints 111 are provided on the outer periphery of the main body part 11 and are spaced apart from each other, and the support arm 12 is connected with the first connecting joint 111 one by one.

[0046] Preferably, one end of the support arm 12 towards the main body part 11 is provided with a first penetrating part 121, and the first connecting piece 13 passes through the first penetrating part 121 and is detachably connected with the first connecting joint 111.

[0047] In some embodiments, the first connecting joint 111 is provided with a first connecting hole 112 at the end thereof towards the outside of the main body part 11, for the first connecting piece 13 to pass through, and the first connecting hole 112 extends from the end face of the first connecting joint 111 towards the inside of the main body part 11.

[0048] In the above scheme, by extending the first connecting hole 112, the axial length of the first connecting hole 112 can be increased. When the first connecting piece 13 is connected to the first mounting hole 24 with the increased axial length, the strength of the connection position of the support arm 12 and the main body 11 can be enhanced, and the overall structure of the tripod 10 is more stable. When the tripod 10 is disassembled or replaced, the first connecting piece 13 is separated from the first connecting hole 112, and then the support arm 12 is disassembled from the main body 11. Then, the support arm 12 that matches the specifications of the inner drum 20 of the drum washing machine 100 is installed again, thereby reducing the maintenance cost.

[0049] Preferably, the first connecting piece 13 is a bolt, the first connecting hole 112 is a threaded hole, and the first penetrating portion 121 is a penetrating through hole. The bolt can be rotated circumferentially relative to the threaded hole of the main body 11 to position the length direction of the support arm 12. By rotating the bolt circumferentially, the distance between the support arm 12 and the main body 11 can be gradually reduced to achieve the purpose of fastening.

[0050] In some embodiments, the diameter of the first connecting hole 112 gradually decreases in the direction towards the inside of the main body 11.

[0051] In the above scheme, the first connecting piece 13 can be a screw. It can be understood that the specific structure of the first connecting piece 13 is not limited thereto, as long as the support arm 12 can be detachably connected to the main body 11.

[0052] In some embodiments, the support arm 12 has an extension length, and the support arm 12 is provided with a second connecting joint 122 at an end away from the main body 11, for assembling with the inner drum 20 of the drum washing machine 100.

[0053] In some embodiments, the second connecting joint 122 is provided with a second connecting hole 123 at an end facing the outside of the support arm 12, and the second connecting hole 123 extends from the end face of the second connecting joint 122 facing the outside of the support arm 12 to the inside of the support arm 12.

[0054] In the above scheme, the second connecting hole 123 designed to extend can increase its own axial length. When installed, the strength of the connection position of the support arm 12 and the inner drum 20 can be enhanced, and the assembly of the tripod 10 is more stable.

[0055] Preferably, the second connecting piece 25 is a bolt, and the second connecting hole 123 is a threaded hole.

[0056] In some embodiments, the diameter of the second connecting hole 123 gradually decreases in the direction towards the inside of the support arm 12.

[0057] In the above scheme, the second connecting member 25 can be a screw. It can be understood that the specific structure of the second connecting member 25 is not limited thereto, as long as the support arm 12 can be detachably connected to the main body 11.

[0058] In some embodiments, as shown in Figure 2 and Figure 3 , the inside of the support arm 12 is provided with a connecting column groove 26, which extends along the width direction of the support arm 12; the outer circumferential surface of the connecting column groove 26 is connected with the two side walls in the width direction of the support arm 12.

[0059] When the side walls in the width direction of the support arm 12 of the tripod 10 are thin, the thin wall of the support arm 12 will deform during high-pressure processing of the die casting mold, which will cause difficulty in molding. In the above scheme, the connecting column groove 26 structure is provided between the two side walls in the width direction of the support arm 12, which not only facilitates the ejection of the tripod 10, but also acts as a reinforcing rib of the tripod 10. The reinforcing rib in the columnar structure can concentrate the stress generated in the width direction of the support arm 12 on the columnar structure and then disperse it, thereby improving the structural strength of the tripod 10 and effectively solving the problem of easy deformation of the tripod 10 during processing.

[0060] As shown in Figure 3 and Figure 4 , a drum washing machine 100 comprises an inner drum 20, and the bottom wall 21 of the inner drum 20 is provided with any of the above-mentioned tripods 10 for the drum washing machine 100.

[0061] Specifically, the drum washing machine 100 generally further comprises a shell, a washing machine outer drum arranged in the shell, a washing machine inner drum 20 sleeved in the washing machine outer drum, and a power device. The tripod 10 for the drum washing machine 100 is generally installed at the bottom of the washing machine inner drum 20 to improve the strength of the washing machine inner drum 20, wherein one side of the tripod 10 faces the washing machine inner drum 20, and the other side of the tripod 10 faces away from the washing machine inner drum 20 (i.e., faces the washing machine outer drum).

[0062] In order to connect the power device with the washing machine inner drum 20, the bottom of the washing machine inner drum 20 is provided with a first central through hole, the center of the main body 11 of the tripod 10 is provided with a second central through hole, the first central through hole and the second central through hole are coaxially arranged, and the rotating shaft of the power device passes through the second central through hole and extends into the first central through hole to connect with the washing machine inner drum 20, so as to drive the washing machine inner drum 20 to rotate.

[0063] In some embodiments, the bottom wall 21 is provided with a mounting groove 22 recessed from the bottom wall 21 towards the inside of the inner drum 20, and the triangular stand 10 for the drum washing machine 100 is arranged in the mounting groove 22.

[0064] In some embodiments, the circumferential edge of the bottom wall 21 is provided with a protruding portion extending outwardly in a direction perpendicular to the bottom wall 21, and a mounting hole 24 is arranged on the protruding portion, and the mounting hole 24 is assembled with the triangular stand 10 for the drum washing machine 100 through a second connecting member 25.

[0065] Preferably, the protruding portion is an annular flange 23 extending outwardly in a direction perpendicular to the bottom wall 21 from the circumferential edge of the bottom wall 21.

[0066] Specifically, the end of the support arm 12 of the triangular stand 10 away from the main body portion 11 is in contact with the annular flange 23, and a second connecting hole 123 arranged on the end of the support arm 12 is arranged corresponding to the mounting hole 24 on the annular flange 23, and the second connecting member 25 is screwed into the second connecting hole 123 on the end of the support arm 12 from the outside of the annular flange 23 of the bottom wall 21 of the inner drum 20 to fasten and connect the two.

[0067] It should be noted that the second connecting member 25 can be a bolt, and the second connecting hole 123 can be a threaded hole. Of course, the second connecting member 25 can also be a screw or other connecting member to detachably connect the support arm 12.

[0068] In some embodiments, the protruding portion can also be a strip-shaped flange extending away from the inner drum 20 from the circumferential edge of the bottom wall 21, and the number of strip-shaped flanges matches the number of support arms 12 in the triangular stand 10. Of course, the protruding portion can also be designed as other flange structures. It should be noted that the design of the protruding portion is only to provide a carrier for the installation of the support arm 12 of the triangular stand 10 and the inner drum 20, and therefore the protruding portion can also be designed as other structures as long as it can meet the installation of the support arm 12 of the triangular stand 10 and the inner drum 20.

[0069] The drum washing machine 100 provided by the application has the advantages that the support arm 12 and the main body part 11 in the triangular frame 10 are arranged in a split structure, in the production and processing, only the support arm 12 and the main body part 11 matched according to the different diameters of the inner drum 20 of the washing machine need to be assembled, the overall structure of the triangular frame 10 need not be redesigned every time the inner drum 20 of different specifications is produced, the production efficiency is greatly improved, the triangular frame 10 can be better matched and installed with the bottom wall 21 of the inner drum 20 of the washing machine of different specifications under the premise of ensuring the strength of the overall structure of the triangular frame 10, the demand of the triangular frame 10 of different lengths of different drum washing machines 100 is met, in the installation and use process of the triangular frame 10, the support arm 12 is directly installed on the main body part 11 by using the first connecting piece 13, the process does not change the support strength inside the support arm 12, therefore the overall strength of the triangular frame 10 is ensured, the service life of the triangular frame 10 is prolonged, the triangular frame 10 is installed on the bottom wall 21 of the inner drum 20 by using the second connecting piece 25 again, in addition, only part of the structure of the triangular frame 10 need to be replaced in the maintenance, the maintenance cost is greatly reduced.

[0070] The above only describes the preferred embodiments of the application and does not limit the application in any form. Although the application has been disclosed as above, it is not intended to limit the application. Any person skilled in the art can make some changes or modifications to the above-mentioned technical content without departing from the technical solution of the application, and the equivalent embodiments with equivalent changes are obtained. Any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the application are still within the scope of the application.

Claims

1. A tripper for a drum washing machine, characterized in that, The utility model relates to a kind of tripods for drum washing machine, including: Main body part (11), a plurality of different first connecting joints (111) are arranged in the periphery interval towards; Multiple support arms (12) are arranged in the periphery interval of the main body part (11), and one-to-one correspondence with the first connecting joint (111); First connecting piece (13) is connected with the support arm (12) and the main body part (11), to detachably connect the support arm (12) on the first connecting joint (111) of the main body part (11); Wherein, according to the inner cylinder (20) diameter of the drum washing machine, matched support arm (12) is assembled with the main body part (11); The support arm (12) is the groove structure of the side open to the inner cylinder (20), and the first through part (121) is arranged on the end wall of the one end of the support arm (12) towards the main body part (11); The first connecting joint (111) is provided with the first connecting hole (112) for the first connecting piece (13) to pass through in the end towards the outside of the main body part (11), and the first connecting hole (112) is arranged from the end face of the first connecting joint (111) towards the outside of the main body part (11) to the inside of the main body part (11); The first connecting piece (13) is arranged along the radial direction, passes through the first through part (121) and is detachably connected with the first connecting joint (111) by the first connecting hole (112).

2. The tripod according to claim 1, wherein: The diameter of the first connecting hole (112) gradually decreases in the direction towards the inside of the main body part (11); The first connecting piece (13) is a bolt or a screw, the first connecting hole (112) is a threaded hole, and the first through part (121) is a through hole; the length direction of the support arm (12) is positioned by the first connecting piece (13).

3. The tripod according to claim 1 or 2, wherein: The support arm (12) has an extension length, and the support arm (12) is provided with a second connecting joint (122) at an end away from the main body part (11) for assembly with the inner cylinder (20) of the drum washing machine (100); The recess structure of the support arm (12) is provided with a connecting column groove (26) inside, and the outer circumferential surface of the connecting column groove (26) is connected with the two side walls in the width direction of the support arm (12).

4. The tripod according to claim 3, wherein: The second connecting joint (122) is provided with a second connecting hole (123) at an end towards the outside of the support arm (12), and the second connecting hole is arranged from the end face of the second connecting joint (122) towards the outside of the support arm (12) to the inside of the support arm (12); The second connecting hole (123) is a threaded hole.

5. The tripod according to claim 4, wherein: The second connecting hole (123) has a gradually decreasing hole diameter in a direction towards the inside of the support arm (12).

6. A drum-type washing machine, characterized by Comprise: An inner drum (20) having a bottom wall (21) on which the triangular stand for a drum washing machine is mounted.

7. The drum washing machine according to claim 6, characterized in that: The bottom wall (21) is provided with a mounting groove (22) recessed from the bottom wall (21) in a direction towards the inside of the inner drum (20), and the triangular stand for a drum washing machine is arranged in the mounting groove (22). The bottom of the inner drum (20) is provided with a first central through hole, and the center of the main body (11) is provided with a second central through hole, the first central through hole and the second central through hole are coaxially arranged, the rotating shaft of the power device of the drum washing machine passes through the second central through hole and extends into the first central through hole, and is connected with the inner drum (20).

8. The drum washing machine according to claim 6, characterized in that: The circumferential edge of the bottom wall (21) is provided with a protruding part which extends outward in a direction perpendicular to the bottom wall (21), and the protruding part is provided with a mounting hole (24), and the mounting hole (24) is assembled with the triangular stand for a drum washing machine through a second connecting piece (25).

9. The drum washing machine according to claim 8, characterized in that: The protruding part is an annular flange (23) which extends outward in a direction perpendicular to the bottom wall (21) from the circumferential edge of the bottom wall (21); Or, the protruding part is a strip-shaped flange which is arranged away from the inner drum (20) from the circumferential edge of the bottom wall (21), and the number of the strip-shaped flanges matches the number of the support arms (12) in the triangular stand (10).

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