Positioning tripod of full-automatic drum washing machine

Abstract

The utility model discloses a full-automatic drum washing machine positioning tripod, which comprises a central shaft assembly and a tripod main body, the tripod main body comprises an annular part and three support arms, the annular part is sleeved and connected on the central shaft assembly, the inner ends of the three support arms are all connected on the annular part, and the inner ends of the three support arms are connected on the central shaft assembly. The outer ends of the three supporting arms are used for being connected with the peripheral wall of the rolling barrel, and the three supporting arms are distributed in a radial shape with the annular part as the center. Wherein the tripod main body is a steel plate part. According to the positioning tripod of the full-automatic drum washing machine, the structure is simple, deformation is not prone to occurring, anti-rust treatment is easy, and the service life of the tripod is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of washing machines, and in particular to a tripod for a front-loading washing machine. Background Technology

[0002] Today, front-loading washing machines are widely used in the washing machine industry, and the tripod is a key component for the stable operation of the inner drum. During operation, the tripod rotates with the inner drum, providing support. In some existing front-loading washing machines, the tripod is made of die-cast aluminum alloy, which is prone to breakage and damage, affecting the machine's usability. Therefore, there is room for improvement in the tripod design of front-loading washing machines. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a positioning tripod for a fully automatic drum washing machine. The tripod has a simple structure that is not easily deformed, extends the service life of the tripod body, and improves the stability of the tripod in supporting the rotation of the drum.

[0004] The positioning tripod of the fully automatic drum washing machine according to an embodiment of the present utility model includes a central shaft assembly and a tripod body. The tripod body includes an annular portion and three support arms. The annular portion is sleeved and connected to the central shaft assembly. The inner ends of the three support arms are all connected to the annular portion, and the outer ends of the three support arms are used to connect to the peripheral wall of the drum. The three support arms are radially distributed with the annular portion as the center. The tripod body is made of steel plate, and each support arm includes at least one flanged plate formed by stamping. The flanged plate extends along the length direction of the support arm.

[0005] The positioning tripod of the fully automatic drum washing machine according to this utility model embodiment has a simple structure, and the support arm has good bending and shear resistance. It is not easily deformed or damaged during the rotation of the drum and is easy to prevent rust. Therefore, it can extend the service life of the tripod and improve the stability of the tripod in supporting the rotation of the drum. Compared with the traditional method of using aluminum alloy die casting, the steel plate processing method of the tripod body of this application can directly purchase steel plates for forming. It is not necessary to melt the aluminum alloy raw materials into liquid and pour them into the die casting machine. The shutdown of these machines can save a lot of electricity, reduce water pollution, and is more environmentally friendly, which is also conducive to improving the production environment. The support arm includes a stamped flange plate, and the flange plate can extend along the length of the support arm. When the drum rotates circumferentially, the drum and water flow will generate great pressure and bending moment on the support arm in the circumferential direction. The flange plate can significantly improve the support arm's resistance to compression, bending and shear in the circumferential direction, ensuring the overall quality of the tripod.

[0006] According to some embodiments of the present invention, the positioning triangle of a fully automatic drum washing machine includes a first steel plate, the first steel plate including a first center plate, three first support plates and three first flange plates, the first center plate being an annular plate; the inner ends of the three first support plates are all connected to the outer periphery of the first center plate, the three first support plates are radially distributed with the first center plate as the center; a first flange plate is formed by stamping on the same side edge of each pair of adjacent first support plates, the center of the first flange plate is connected to the outer periphery of the first center plate, the three first flange plates are located on the same side of the first center plate in the axial direction; the first center plate, the three first support plates and the three first flange plates are an integral plate; each first support plate and the first flange plates on both sides of the first support plate constitute at least part of the support arm, and the first center plate and the first flange plates on its outer periphery constitute at least part of the annular portion.

[0007] Optionally, the tripod body includes a second steel plate, which is welded to the first steel plate. The second steel plate includes a second center plate and three second support plates. The second center plate is an annular plate. The inner ends of the three second support plates are all connected to the outer periphery of the second center plate, and the three second support plates are radially distributed with the second center plate as the center. The second center plate is directly opposite the first center plate, and the three second support plates are correspondingly opposite the three first support plates. The edge of the second steel plate is connected to the three first flange plates.

[0008] Optionally, the second steel plate is a single piece; or, the second steel plate is formed by splicing three independently processed single plates together circumferentially, each single plate being a single piece of steel plate, the inner end of the single plate forming an arc-shaped portion, and the arc-shaped portions of the three single plates being spliced ​​together circumferentially to form the second center plate.

[0009] Optionally, both the first support plate and the second support plate are provided with reinforcing ribs formed by stamping, and the reinforcing ribs extend along the length direction of the support arm.

[0010] According to some embodiments of the present invention, the positioning tripod of a fully automatic drum washing machine includes three steel rods. The three steel rods are sequentially spliced ​​together along the circumference to form the main body of the tripod, and adjacent two steel rods are welded together. The main body of each steel rod is the support arm, and the inner ends of the three steel rods are spliced ​​together along the circumference to form the annular part.

[0011] According to some embodiments of the present invention, the positioning triangle of the fully automatic drum washing machine has a rectangular or I-shaped cross-section in the direction perpendicular to its length.

[0012] Optionally, the tripod further includes three connecting blocks, which are respectively disposed on the outer ends of the three support arms, and each connecting block is provided with a mounting hole for installation.

[0013] Specifically, the width of the outer end of the support arm is increased, and the connecting block is provided with at least two mounting holes distributed along the width direction of the support arm.

[0014] Optionally, the tripod body has a hollow cavity, and the support arm has a rectangular cross-section perpendicular to its length direction; the outer end of each support arm of the tripod body is sealed by the connecting block, and the annular portion of the tripod is sealed by an outer sleeve connected to the central shaft assembly.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 This is a schematic diagram of a tripod structure according to some embodiments of the present utility model;

[0018] Figure 2 This is another schematic diagram of a tripod structure according to some embodiments of the present utility model;

[0019] Figure 3 This is yet another schematic diagram of a tripod structure according to some embodiments of the present utility model;

[0020] Figure 4 This is an exploded view of a tripod structure according to some embodiments of the present invention;

[0021] Figure 5 This is a schematic diagram of a tripod structure according to other embodiments of the present invention;

[0022] Figure 6 This is another schematic diagram of a tripod structure according to other embodiments of the present invention;

[0023] Figure 7 This is yet another schematic diagram of a tripod structure according to other embodiments of the present invention;

[0024] Figure 8 This is an exploded view of a tripod structure according to other embodiments of the present invention;

[0025] Figure 9This is an exploded view of a tripod structure according to some embodiments of the present invention;

[0026] Figure 10 A cross-sectional view of the support arm in a tripod structure according to some embodiments of the present invention.

[0027] Figure label:

[0028] Tripod 100

[0029] Central shaft assembly 10

[0030] Tripod body 20, ring part 21, support arm 22

[0031] First steel plate 23, first center plate 231, first support plate 232, first flange plate 233

[0032] Second steel plate 24, second center plate 241, second support plate 242, hollow cavity 25, reinforcing rib 26

[0033] Steel rod 27, intermediate upright plate 271, second flange plate 272

[0034] Connecting block 30, mounting hole 31. Detailed Implementation

[0035] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0036] In the description of this utility model, it should be understood that the terms "center," "length," "width," "thickness," "upper," "lower," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] The following is for reference. Figures 1-10 This invention describes a positioning tripod 100 for a fully automatic front-loading washing machine according to an embodiment of the present invention. The positioning tripod 100 for a fully automatic front-loading washing machine according to some embodiments of the present invention may include a central shaft assembly 10 and a tripod body 20.

[0039] like Figures 1-3 As shown, the tripod body 20 includes an annular portion 21 and three support arms 22. The annular portion 21 is fitted onto and connected to the central shaft assembly 10, and the inner ends of the three support arms 22 are all connected to the annular portion 21. The annular portion 21 fits onto the central shaft assembly 10, making the installation of the three support arms 22 more convenient and stable.

[0040] The outer ends of the three support arms 22 are used to connect to the peripheral wall of the drum, and the three support arms 22 are radially distributed around the annular portion 21. The three support arms 22 are connected to the central shaft assembly 10 through the annular portion 21, so that the rotation of the central shaft assembly 10 can drive the rotation of the support arms 22, thereby more effectively supporting the rotation of the drum.

[0041] During long-term use of fully automatic front-loading washing machines, the drum is often exposed to water or a humid environment. In such cases, the conventional aluminum cast tripod in existing technology is prone to rusting, deformation, damage, and even support arm breakage. These issues shorten the lifespan of the tripod. Especially when the tripod is deformed or damaged, the drum may lose its dynamic balance during rotation, making it more susceptible to contact with the outer tub, resulting in high rotational resistance, high energy consumption, strong vibration, and excessive noise. In these situations, users typically have to contact after-sales service for repairs, which usually involves replacing the tripod – a cumbersome and time-consuming process.

[0042] To solve the above problems, this application proposes a tripod 100, in which the main body 20 is made of steel plate, and therefore the support arm 22 is also made of steel plate.

[0043] The reason for this design is that in existing fully automatic drum washing machines, the deformation and damage of the tripod mainly occur at the support arm. This is because the support arm itself has a large radial length on the drum, and therefore bears very large bending and torque moments. Moreover, in existing technologies, the tripod is usually a one-piece die-cast part, and the bending and shear resistance of die-cast parts is weakest at slender sections, making the support arm most prone to deformation and damage. The support arm 22 made of steel plate in this application overcomes these weaknesses.

[0044] In terms of raw material sourcing, high-quality steel plates can be obtained from the market at reasonable prices, making the cost of the tripod body 20 easy to control. Based on mature steel plate processing production lines, steel plates offer numerous advantages.

[0045] First, steel plates possess high strength and toughness, along with good plasticity and machinability, making them easy to form, weld, and cut. The triangular frame body 20, made from steel plates, can exhibit high tensile strength, conditional yield strength, and moderate hardness, significantly improving the bending and shear resistance of the slender support arms 22.

[0046] Secondly, there are many types of steel plates available on the market, and specific parameters can be selected according to different varieties and specifications. Steel plates with strong inherent rust resistance can be chosen as the processing raw material for this application, or ordinary steel plates can be selected and rust-proofed. Since steel plates themselves have a certain degree of corrosion resistance, and their surface can be treated to achieve good durability, steel plates are chosen to process the tripod body 20. The tripod body 20 can easily obtain strong corrosion resistance, is not easily rusted inside the washing machine, and therefore can achieve a long service life.

[0047] Moreover, steel plates have a lower coefficient of thermal expansion than aluminum and copper. Using steel plates to process the main body of the triangular frame ensures the stability and durability of the support for the roller after long-term use.

[0048] Therefore, the tripod 100 of this application easily obtains strong corrosion resistance, and its resistance to deformation and damage is stronger, thus obtaining a longer service life and more stable use effect.

[0049] In addition, after actual production, it was found that the steel plate processing method of the tripod body 20 in this application, compared with the traditional method of using aluminum alloy die casting, can directly purchase steel plates for forming, without the need to melt aluminum alloy raw materials into liquid and pour them into the die casting machine. The shutdown of these devices can save a lot of electricity consumption, reduce water resources and pollution, and is more environmentally friendly, which is also conducive to improving the production environment.

[0050] To further adapt to the operational characteristics of the tripod 100, this application also proposes that each support arm 22 includes at least one flange formed by stamping, and the flange extends along the length of the support arm. That is to say, after the material is taken from the raw steel plate, it is not simply used directly as the main body 20 of the tripod, but also undergoes a stamping process.

[0051] Stamping is a common metal processing method that transforms sheet metal into various shapes under high speed and pressure. Stamping the steel sheet, especially at the stamping point on the support arm 22, adjusts the stress distribution within the support arm 22, making the material denser and resulting in stronger bending and shear resistance. When the fully automatic front-loading washing machine is operating, the drum and tripod 100 rotate circumferentially, and the drum and water flow exert significant pressure and bending moments on the support arm 22 in the circumferential direction. The support arm 22 includes stamped flanges that extend along its length. The flanges significantly improve the support arm 22's circumferential resistance to compression, bending, and shear, ensuring the overall quality of the tripod 100.

[0052] Considering cost and processing difficulty, stainless steel plates can be directly selected for processing the tripod body 20 during production. Stainless steel plates have high oxidation resistance and strong corrosion resistance. Furthermore, stainless steel plates have polishing properties, high physical strength, and stable quality. Therefore, using stainless steel plates for the tripod body 20 saves on subsequent rust-proofing processes, achieving stable and reliable corrosion resistance and ensuring a longer service life.

[0053] The inventors discovered during production that, for mass production, using the steel plate machining method described in this application for the tripod body, compared to the aluminum alloy die-casting method used in existing technologies, can reduce the cost of a single tripod by several RMB when producing tripods with the same external parameters. Given that the domestic market demand for fully automatic front-loading washing machines is in the tens of millions, the total cost savings on tripods could reach tens of millions of RMB, resulting in substantial economic benefits.

[0054] In some embodiments, cold-rolled steel sheets can be selected to process the tripod body 20. During processing, the cold-rolled steel sheets can undergo rust-proofing treatment to improve the corrosion resistance of the tripod body 20 and ensure a longer service life. Here, cold-rolled sheets are products made from hot-rolled coils, rolled at room temperature below the recrystallization temperature. Because no heating is involved in the production process, defects such as pitting and iron oxide scale commonly found in hot-rolled products are absent, resulting in good surface quality and high smoothness. Cold-rolled steel sheets also possess good cold bending and welding properties, as well as certain stamping properties. Therefore, using cold-rolled steel sheets to process the tripod body 20 results in more stable quality of the tripod body 20.

[0055] Specifically, when selecting cold-rolled steel plates to process the tripod body 20, electrophoretic treatment can be applied to the cold-rolled steel plates to form a dense protective film on the surface of the tripod body 20, resisting chemical corrosion from acids, alkalis, salts, etc., and extending its service life. Furthermore, electrophoretic treatment can deposit a uniform metal coating on the surface of the tripod body 20, enhancing its wear resistance and scratch resistance. The electrophoretic processing method for forming the protective film uses relatively less inorganic solvent in the electrophoretic solution, resulting in less environmental pollution and making it more environmentally friendly.

[0056] like Figures 3-4 As shown, the positioning tripod 100 for a fully automatic drum washing machine according to some embodiments of this utility model includes a tripod body 20 comprising at least two steel plates. Each support arm 22 is formed by splicing and welding at least two steel plates axially or circumferentially. That is, the steel plates contain at least two long steel strips, which are spliced ​​axially or circumferentially to form a long support arm 22. After the at least two long steel strips are spliced ​​axially or circumferentially, they are fixed together by welding.

[0057] It is understandable that the bending and shear resistance of a single steel bar is already good. By splicing at least two long steel plates along the axial or circumferential direction, the bending and shear resistance of the resulting support arm 22 can be further enhanced.

[0058] It should be noted that the aforementioned single support arm 22 is spliced ​​from at least two steel plates along the axial direction, meaning that at least two steel plates are joined axially. Figure 1 The axes of the central shaft assembly 10 shown are spliced ​​together in the same direction. For example... Figure 1 In the example shown, the axial direction is consistent with the vertical direction. Figure 1 A single support arm 22 can be formed by splicing two steel plates together in the vertical direction. Multiple support arms 22 are evenly distributed in the circumferential direction, and each support arm 22 extends radially.

[0059] The aforementioned single support arm 22 is constructed by splicing at least two steel plates circumferentially, meaning that at least two steel plates can be spliced ​​together along the circumferential direction of the central shaft assembly 10. For example... Figure 8 In the example shown, Figure 1 A single support arm 22 can be formed by splicing two steel plates circumferentially, and the spliced ​​multiple support arms 22 are evenly distributed circumferentially, with each support arm 22 extending radially.

[0060] According to some embodiments of this utility model, refer to Figures 3-4 As shown, the tripod body 20 includes at least two welded steel plates. The processed steel plates are welded together to form the tripod body 20, which facilitates the forming and subsequent processing of the steel plates.

[0061] According to some embodiments of the present invention, the tripod body 20 includes a first steel plate 23, the first steel plate 23 includes a first center plate 231, three first support plates 232 and three first flange plates 233.

[0062] The first center plate 231 is an annular plate. This annular plate is sleeved on the central shaft assembly 10, providing a connection point for the first support plate 232 to connect to the central shaft assembly 10. The inner ends of the three first support plates 232 are all connected to the outer periphery of the first center plate 231, and the three first support plates 232 are radially distributed with the first center plate 231 as the center. A first flange plate 233 is connected to the same edge of every two adjacent first support plates 232. The center of the first flange plate 233 is connected to the outer periphery of the first center plate 231. The three first flange plates 233 are located on the same axial side of the first center plate 231, and the first flange plates 233 are the stamped flange plates described above. The first center plate 231, the three first support plates 232, and the three first flange plates 233 are a single piece. Each first support plate 232 and the first flange plates 233 on both sides of the first support plate 232 form at least a partial support arm 22, and the first center plate 231 and the first flange plates 233 on its outer periphery form at least a partial annular portion 21. Thus, the basic frame of the tripod body 20 is formed, which can support the weight of the drum, ensure the stability of the drum during operation, and provide stable support for the washing machine.

[0063] According to some embodiments of this utility model, refer to Figure 4 As shown, the tripod body 20 includes a second steel plate 24, which includes a second center plate 241 and three second support plates 242. The second center plate 241 is an annular plate, and the inner ends of the three second support plates 242 are all connected to the outer periphery of the second center plate 241. The three second support plates 242 are radially distributed with the second center plate 241 as the center.

[0064] Reference Figure 4 As shown, the second center plate 241 is directly opposite the first center plate 231, and the three second support plates 242 are correspondingly opposite the three first support plates 232. The edge of the second steel plate 24 is connected to the three first flange plates 233. It is worth noting that the above structure can form a hollow tripod body 20, which reduces the weight of the tripod body 20, reduces energy consumption, and saves material costs.

[0065] Optionally, such as Figure 4 As shown, the second steel plate 24 is a single piece. Therefore, the second steel plate 24 has relatively improved durability and is not easily damaged.

[0066] Of course, this application solution is not limited to the solution where the second steel plate 24 is an integral plate. For example, Figure 9As shown, the second steel plate 24 is formed by circumferentially splicing three independently processed single plate bodies. Each single plate body is an independent integral steel plate. The inner end of the single plate body forms an arc portion. The arc portions of the three single plate bodies are circumferentially joined to form the second central plate 241. In this way, when punching (or cutting or tailoring) the single plate bodies on the steel plate, more single plate bodies can be obtained from the steel plate of the same size, so that more second steel plates 24 can be finally spliced, reducing the waste amount and improving the utilization rate of the steel plate material.

[0067] According to some embodiments of the present utility model, referring to Figures 1-2 As shown, reinforcing ribs 26 formed by stamping are provided on both the first support plate 232 and the second support plate 242. The reinforcing ribs 26 extend along the length direction of the support arm 22. Specifically, the reinforcing ribs 26 are formed by a stamping process and extend along the length direction of the support arm 22, providing additional strength and stability for the support arm 22. When the tripod 100 is installed on the inner barrel circumferential wall of the drum washing machine, the reinforcing ribs 26 located on the first central plate 231 can abut against the inner barrel, thereby strengthening the connection stability between the tripod 100 and the inner barrel and reducing the vibration of the inner barrel during the operation of the washing machine. The reinforcing ribs 26 located on the second support plate 242 can enhance the strength of the second support plate 242 and evenly disperse the external force in the length direction of the support arm 22, so that the support arm 22 can still maintain good stability when bearing a large load and running at high speed.

[0068] For the positioning tripod 100 of the fully automatic drum washing machine according to some other embodiments of the present utility model, referring to Figures 5-8 As shown, the tripod body 20 includes three steel rods 27. The three steel rods 27 are sequentially spliced circumferentially to form the tripod body 20. Adjacent two steel rods 27 are connected by welding. The main body of each steel rod 27 is the support arm 22. The inner ends of the three steel rods 27 are circumferentially joined to form an annular portion 21. Thus, the main body structure of the tripod 100 is formed. And the structure of this kind of steel rod 27 is simple, and while ensuring the structural strength, it can reduce the weight and save materials.

[0069] Each steel rod 27 can be made of one steel plate, or can be formed by splicing two or more steel plates axially or circumferentially. That is to say, the tripod 20 can generally be made of three steel plates, or six steel plates, or nine steel plates, etc.

[0070] The cross-section of each steel rod 27 can be as Figure 8 shown in the shape of "I", or can be as Figure 10 shown in the shape of a rectangle, which is not limited here.

[0071] According to some embodiments of this utility model, the cross-section of the support arm 22 perpendicular to its length direction is rectangular or I-shaped. This support arm 22 provides effective reinforcement in the vertical direction, preventing breakage and deformation of the tripod body 20.

[0072] Optionally, refer to Figure 8 As shown, the "I"-shaped support arm 22 includes a central upright plate 271 and two second flange plates 272 on both sides. It is worth noting that the central upright plate 271 and the two second flange plates 272 are integral plates, symmetrically arranged. When the central upright plates 271 of the two integral plates are brought close together, the two upper second flange plates 272 of the two integral plates form an upper plane, and the two lower second flange plates 272 of the two integral plates form a lower plane. By welding adjacent second flange plates 272 together, the two integral plates form an "I" shape. This arrangement of the support arm 22 is equivalent to having two reinforcing central upright plates 271 in the middle of the support arm 22, thus creating a more stable support.

[0073] Reference Figure 4 , Figure 8 As shown, the positioning tripod 100 for a fully automatic drum washing machine according to some embodiments of the present invention further includes three connecting blocks 30. The three connecting blocks 30 are respectively disposed on the outer ends of the three support arms 22, and each connecting block 30 is provided with a mounting hole 31 for installation.

[0074] Optionally, each connecting block 30 is provided with two mounting holes 31.

[0075] Optionally, the width of the outer end of the support arm 22 is increased, and the connecting block 30 is provided with at least two mounting holes 31 distributed along the width direction of the support arm 22. This arrangement increases the connecting surface at the outer end of the support arm 22, allowing the support arm 22 to be more securely connected to the drum, thereby increasing the stability of the drum. The two mounting holes 31, positioned along the width direction of the support arm 22, ensure a stable connection between the support arm 22 and the drum during high-speed rotation after installation, preventing wobbling and improving the structural stability of the washing machine.

[0076] Optionally, the tripod body 20 has a hollow cavity 25. The hollow cavity 25 is formed on both sides of the "I" shape. This reduces overall weight and energy consumption, while also saving costs. The support arm 22 has a rectangular cross-section perpendicular to its length. The support arm 22 is compactly connected close to the bottom of the drum, saving internal space and reducing the overall size of the washing machine, thus adapting to different usage scenarios.

[0077] Optionally, the hollow cavity 25 is provided with a number of reinforcing ribs (not shown in the figure). The reinforcing ribs are arranged at intervals perpendicular to the extension direction of the support arm 22, so that the hollow cavity 25 is divided into a number of small chambers. The reinforcing ribs play a strengthening role, thereby ensuring the strength of the support arm 22.

[0078] Optionally, the hollow cavities 25 on both sides of the tripod body 20 are provided with several reinforcing ribs, either symmetrically or asymmetrically, to enhance the supporting strength of the support arm 22.

[0079] The outer ends of each support arm 22 of the tripod body 20 are sealed by connecting blocks 30, and the annular portion 21 of the tripod 100 is sealed by an outer sleeve connected to the central shaft assembly 10. By sealing the internal space, the entry of foreign objects such as lint and debris generated during washing into the tripod body 20 is reduced, thus preventing bacterial growth.

[0080] Other configurations of the tripod 100 according to the present invention, such as fully automatic drum washing machines, are known to those skilled in the art and will not be described in detail here.

[0081] First Embodiment

[0082] See the appendix below. Figures 1-4 The first embodiment of this application describes a positioning tripod 100 for a fully automatic drum washing machine.

[0083] The tripod 100 includes a central axis assembly 10, a tripod body 20, and three connecting blocks 30.

[0084] The main body of the tripod is made of steel plate.

[0085] The tripod body 20 includes an annular portion 21 and three support arms 22. The annular portion 21 is sleeved and connected to the central shaft assembly 10. The inner ends of the three support arms 22 are all connected to the annular portion 21, and the three support arms 22 are radially distributed with the annular portion 21 as the center. The outer ends of the three support arms 22 are used to connect to the peripheral wall of the drum. Three connecting blocks 30 are respectively provided on the outer ends of the three support arms 22, and each connecting block 30 has two mounting holes 31 for installation.

[0086] The tripod body 20 includes two welded steel plates, namely the first steel plate 23 and the second steel plate 24.

[0087] The first steel plate 23 includes a first center plate 231, three first support plates 232, and three first flange plates 233. The first center plate 231, the three first support plates 232, and the three first flange plates 233 are integral plates. The first center plate 231 is an annular plate. The inner ends of the three first support plates 232 are all connected to the outer periphery of the first center plate 231, and the three first support plates 232 are radially distributed with the first center plate 231 as the center. A first flange plate 233 is connected to the same edge of every two adjacent first support plates 232, and the center of the first flange plate 233 is connected to the outer periphery of the first center plate 231. The three first flange plates 233 are located on the same side of the first center plate 231 in the axial direction. Each first support plate 232 and the first flange plates 233 on both sides of the first support plate 232 form a partial support arm 22, and the first center plate 231 and the first flange plates 233 on its outer periphery form a partial annular portion 21.

[0088] The second steel plate 24 includes a second center plate 241 and three second support plates 242. The second steel plate 24 is a single piece. The second center plate 241 is an annular plate. The inner ends of the three second support plates 242 are all connected to the outer periphery of the second center plate 241, and the three second support plates 242 are radially distributed with the second center plate 241 as the center.

[0089] The second center plate 241 is directly opposite the first center plate 231, and the three second support plates 242 are directly opposite the three first support plates 232. The edge of the second steel plate 24 is connected to the three first flange plates 233.

[0090] In addition, the tripod body 20 also has a hollow cavity 25, and the support arm 22 has a rectangular cross-section perpendicular to its length. The outer end of each support arm 22 of the tripod body 20 is sealed by a connecting block 30, and the annular part 21 of the tripod 100 is sealed by an outer sleeve connected to the central shaft assembly 10.

[0091] The first support plate 232 and the second support plate 242 mentioned above are both provided with reinforcing ribs 26 formed by stamping, and the reinforcing ribs 26 extend along the length direction of the support arm 22.

[0092] Second Embodiment

[0093] See the appendix below. Figures 5-8 The second embodiment of the present application describes a positioning tripod 100 for a fully automatic drum washing machine.

[0094] The tripod 100 in this embodiment is basically the same as that in Embodiment 1, also including a central shaft assembly 10, a tripod body 20, and three connecting blocks 30. The difference is that the tripod body 20 includes three steel rods 27, and the three steel rods 27 are sequentially spliced ​​along the circumference to form the tripod body 20. The main body of each steel rod 27 is a support arm 22, and the inner ends of the three steel rods 27 are spliced ​​together along the circumference to form an annular portion 21. The support arm 22 includes a middle upright plate 271 and two second flange plates 272 on both sides, and the middle upright plate 271 and the two second flange plates 272 on both sides are integral plates. The two integral plates are symmetrically arranged, so that the middle upright plates 271 of the two integral plates are close to each other, and the two upper second flange plates 272 of the two integral plates form an upper plane, and the two lower second flange plates 272 of the two integral plates form a lower plane. The adjacent second flange plates 272 are welded together, so that the cross section of the support arm 22 composed of the two integral plates in the direction perpendicular to the length of the support arm 22 is "I" shaped. The "I" shape forms two semi-enclosed hollow cavities 25 on both sides. Each hollow cavity 25 is provided with several symmetrical reinforcing ribs (not shown in the figure). The reinforcing ribs are spaced apart perpendicular to the extension direction of the support arm 22.

[0095] In this specification, the terms "embodiment," "example," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0096] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A positioning tripod for a fully automatic drum washing machine, characterized in that, include: Central shaft assembly (10); Tripod body (20), the tripod body (20) includes an annular part (21) and three support arms (22), the annular part (21) is sleeved and connected to the central shaft assembly (10), the inner ends of the three support arms (22) are all connected to the annular part (21), the outer ends of the three support arms (22) are used to connect to the peripheral wall of the drum, and the three support arms (22) are radially distributed with the annular part (21) as the center; The tripod body (20) is made of steel plate, and each support arm (22) includes at least one flange formed by stamping, which extends along the length of the support arm (22).

2. The positioning tripod for a fully automatic drum washing machine according to claim 1, characterized in that, The tripod body (20) includes a first steel plate (23), the first steel plate (23) comprising: The first center plate (231) is an annular plate; Three first support plates (232) are provided, the inner ends of which are connected to the outer periphery of the first central plate (231). The three first support plates (232) are radially distributed with the first central plate (231) as the center. Three first flanges (233) are formed by stamping on the same side edge of each of two adjacent first support plates (232). The center of the first flange (233) is connected to the outer periphery of the first center plate (231). The three first flanges (233) are located on the same side of the first center plate (231) in the axial direction. The first center plate (231), the three first support plates (232) and the three first flange plates (233) are an integral plate; Each of the first support plates (232) and the first flange plates (233) on both sides of the first support plate (232) form at least a portion of the support arm (22), and the first center plate (231) and the first flange plates (233) on its outer periphery form at least a portion of the annular portion (21).

3. The positioning tripod for a fully automatic drum washing machine according to claim 2, characterized in that, The tripod body (20) includes a second steel plate (24), which is welded to the first steel plate (23). The second steel plate (24) includes: The second center plate (241) is an annular plate; Three second support plates (242) are provided, the inner ends of which are connected to the outer periphery of the second central plate (241). The three second support plates (242) are radially distributed with the second central plate (241) as the center. The second center plate (241) is directly opposite the first center plate (231), the three second support plates (242) are directly opposite the three first support plates (232) respectively, and the edge of the second steel plate (24) is connected to the three first flange plates (233).

4. The positioning tripod for a fully automatic drum washing machine according to claim 3, characterized in that, The second steel plate (24) is a single piece; Alternatively, the second steel plate (24) is formed by splicing three independently processed single plates together in the circumferential direction. Each single plate is an integral steel plate, and the inner end of the single plate forms an arc-shaped part. The arc-shaped parts of the three single plates are spliced ​​together in the circumferential direction to form the second center plate (241).

5. The positioning tripod for a fully automatic drum washing machine according to claim 3, characterized in that, Both the first support plate (232) and the second support plate (242) are provided with reinforcing ribs (26) formed by stamping, and the reinforcing ribs (26) extend along the length direction of the support arm (22).

6. The positioning tripod for a fully automatic drum washing machine according to claim 1, characterized in that, The tripod body (20) includes three steel rods (27), which are spliced ​​together in the circumferential direction to form the tripod body (20), and adjacent steel rods (27) are welded together; The main body of each steel rod (27) is the support arm (22), and the inner ends of the three steel rods (27) are joined together circumferentially to form the annular part (21).

7. The positioning tripod for a fully automatic drum washing machine according to claim 1, characterized in that, The cross-section of the support arm (22) perpendicular to its length direction is rectangular or "I" shaped.

8. The positioning tripod for a fully automatic drum washing machine according to any one of claims 1-7, characterized in that, Also includes: Three connecting blocks (30) are respectively provided on the outer ends of the three support arms (22), and each connecting block (30) is provided with a mounting hole (31) for installation.

9. The positioning tripod for a fully automatic drum washing machine according to claim 8, characterized in that, The width of the outer end of the support arm (22) is increased, and the connecting block (30) is provided with at least two mounting holes (31) distributed along the width direction of the support arm (22).

10. The positioning tripod for a fully automatic drum washing machine according to claim 8, characterized in that, The tripod body (20) has a hollow cavity (25), and the support arm (22) has a rectangular cross-section perpendicular to its length direction; The tripod body (20) is sealed at the outer end of each of the support arms (22) by the connecting block (30), and the annular part (21) of the tripod (100) is sealed by connecting the outer sleeve to the central shaft assembly (10).

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