Double-airing-rod assembly and ultrathin clothes hanger

Abstract

The utility model discloses a double-airing-rod assembly and an ultrathin clothes hanger, and belongs to the field of clothes hangers. The double-airing-rod assembly comprises an upper airing rod assembly body, a lower airing rod assembly body and an airing rod connecting assembly, the upper airing rod assembly body comprises an upper airing rod main body with an inverted-U-shaped cross section, a hollow inverted-U-shaped upper rod cavity is formed in the upper airing rod main body, and a lower rod containing groove with an opening in the lower end is formed in the bottom of the upper airing rod main body; the lower airing rod assembly comprises a lower airing rod main body, a hollow lower rod cavity is formed in the lower airing rod main body, and in the storage state, the lower airing rod main body can be partially or completely contained in the lower rod containing groove. The upper airing rod is higher in structural strength and can contain the lower airing rod, so that the whole body is more compact after the upper airing rod and the lower airing rod are combined, clothes can be conveniently hung, and the lower airing rod can be designed to be thicker; the lower hanging part can be adopted, so that the overall height of the combined double-airing-rod assembly is smaller, and the ultrathin clothes hanger is facilitated.

Description

Technical Field

[0001] This utility model relates to a clothes drying rack, and more specifically, to a double drying rod assembly and an ultra-thin clothes drying rack. Background Technology

[0002] Clothes racks with quilt drying function are made by adding a quilt drying rod to the original clothes drying rod, thus realizing the function of drying quilts on the clothes rack. This type of clothes rack is becoming increasingly popular among consumers.

[0003] There are two main installation methods for quilt drying rods: one where the rod flips and snaps onto the top of the clothes drying rod, and the other where it hangs below the clothes drying rod. The former typically uses a connecting rod or rope to connect the quilt drying rod, requiring it to be removed from the fastener at the top of the clothes drying rod for use. Examples include the "Clothes Drying Component and Clothes Drying Machine with Quilt Drying Rod" disclosed in Chinese Patent No. ZL201920334648.0. The advantage of this design is its simple structure and ease of implementation; the quilt drying rod is relatively stable after being flipped and stored. However, the fasteners and other structural elements increase space usage, and the quilt drying rod usually protrudes from the bottom of the main unit during storage, making the operation relatively cumbersome. The latter typically uses a flexible, telescopic design. A hanging rope or strap is attached to the bottom of the clothesline. Springs or other elastic components pull the quilt-drying rod below the clothesline. In use, simply pulling down the quilt-drying rod overcomes the tension of the elastic components to separate it from the clothesline. The weight of the quilt or other items keeps the quilt-drying rod at its lowest position. Examples include the "Double Drying Rod Assembly and Clothes Rack" disclosed in Chinese Patent No. ZL202420455800.1. The advantage of this design is its simple structure and ease of use. However, when the quilt-drying rod is not in use, it is retracted below the clothesline, resulting in a larger overall size of the combined drying rod, which can easily affect the proper hanging of clothes hangers. To meet the size requirements for hanging clothes hangers, the dimensions of both the clothesline and quilt-drying rods often need to be reduced, which can easily decrease their strength. To simultaneously meet the requirements for the strength of the drying rod and the size of the clothes hanger, a taller hanging section is often needed at the top of the drying rod to increase its structural strength. However, this results in a larger overall thickness of the drying rod, increasing the space required to store the drying rod inside the main unit, which is not conducive to making the clothes rack ultra-thin. Summary of the Invention

[0004] 1. Technical problem to be solved by the utility model

[0005] The purpose of this invention is to solve the aforementioned problems of existing suspended double drying rod assemblies, and to provide a double drying rod assembly and an ultra-thin clothes rack. Using the technical solution of this invention, the upper drying rod is designed as a hollow inverted "U" shape. The double-layered inner and outer sidewalls improve the structural strength of the upper drying rod. The inverted "U" shape of the upper drying rod can accommodate the lower drying rod, making the overall size of the combined upper and lower drying rods more compact and convenient for hanging clothes. Furthermore, the lower drying rod can be designed to be thicker, meeting the weight requirements for drying large items such as quilts. In addition, due to the higher structural strength of the upper drying rod, a lower hanging section can be used, resulting in a smaller overall height of the combined double drying rod assembly, reducing the space required for storage in the main clothes rack unit, and allowing it to be used in a thinner main unit.

[0006] 2. Technical Solution

[0007] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0008] This utility model discloses a double drying rod assembly, including an upper drying rod assembly, a lower drying rod assembly, and a drying rod connecting assembly. The two ends of the lower drying rod assembly are respectively suspended and installed below the upper drying rod assembly through the drying rod connecting assembly. The lower drying rod assembly has at least a storage state where it is stored under the upper drying rod assembly and a use state where it moves downward to a certain position below the upper drying rod assembly. The upper drying rod assembly includes an upper drying rod body with an inverted "U" shaped cross-section. The interior of the upper drying rod body has a hollow inverted "U" shaped upper rod cavity, and a lower rod receiving groove with an open lower end is formed at the bottom of the upper drying rod body.

[0009] The lower drying rod assembly includes a lower drying rod body, the interior of which has a hollow lower rod cavity. In the above-mentioned stored state, the lower drying rod body can be partially or completely accommodated in the above-mentioned lower rod receiving groove.

[0010] Furthermore, the bottom two sides of the lower drying rod body have outer edges, making the cross-sectional shape of the lower drying rod body “⊥”. The inner side of the outer edges has a hollow cavity, and the upper part of the lower drying rod body can be accommodated in the aforementioned lower rod receiving groove. The width of the outer edges matches the width of the lower end of the upper drying rod body located on both sides of the lower rod receiving groove.

[0011] Furthermore, the upper drying rod assembly also includes an upper drying rod telescopic rod capable of telescopic movement at both ends of the upper rod cavity of the upper drying rod body. The upper drying rod telescopic rod is a sheet metal structural component with an inverted "U" shaped cross-section, and the outer end of the upper drying rod telescopic rod is also provided with an upper telescopic rod end cap. The lower drying rod assembly also includes a lower drying rod telescopic rod capable of telescopic movement at both ends of the lower rod cavity of the lower drying rod body. The outer end of the lower drying rod telescopic rod is also provided with a lower telescopic rod end cap. The outer end of the lower drying rod telescopic rod is connected to the outer end of the corresponding upper drying rod telescopic rod through a drying rod connecting assembly.

[0012] Furthermore, the lower rod cavity is rectangular, and the lower drying rod telescopic rod is a hollow rectangular tube.

[0013] Furthermore, the upper telescopic rod located inside the upper rod cavity has an upper telescopic rod limiting protrusion stamped on one end, and the lower telescopic rod located inside the lower rod cavity has a lower telescopic rod limiting protrusion stamped on one end.

[0014] Furthermore, the upper part of the main body of the drying rack is also provided with a hanging part, which is wavy.

[0015] Furthermore, the drying rod connection assembly includes a flexible connector and an elastic element. The elastic element is disposed inside the corresponding lower drying rod telescopic rod. One end of the flexible connector is connected to the end cap of the upper telescopic rod, and the other end of the flexible connector passes through the end cap of the corresponding lower telescopic rod and is connected to the corresponding elastic element.

[0016] Furthermore, both the upper and lower drying rod bodies are made of aluminum alloy profiles.

[0017] This utility model discloses an ultra-thin clothes drying rack with the aforementioned double drying rod assembly.

[0018] Furthermore, it also includes a main unit and a lifting connector. The main unit has symmetrical drying rod cavities on both sides. Each of the drying rod cavities on both sides is connected to the upper drying rod assembly of a set of double drying rod assemblies through the lifting connector. When the double drying rod assembly is in the storage state, it can be raised as a whole into the drying rod cavity, and the bottom plane of the lower drying rod assembly is flush with or approximately flush with the bottom plane of the main unit. The bottom of the main unit, located between the two sets of double drying rod assemblies, also has a lighting panel.

[0019] 3. Beneficial effects

[0020] Compared with existing known technologies, the technical solution provided by this utility model has the following beneficial effects:

[0021] (1) A double drying rod assembly of the present invention includes an upper drying rod assembly, a lower drying rod assembly, and a drying rod connecting assembly. The upper drying rod assembly includes an upper drying rod body with an inverted "U" shaped cross-section. The upper drying rod body has a hollow inverted "U" shaped upper rod cavity inside, and a lower rod receiving groove with an open lower end is formed at the bottom of the upper drying rod body. The lower drying rod assembly includes a lower drying rod body with a hollow lower rod cavity inside. In the above-mentioned stored state, the lower drying rod body can be partially or completely accommodated in the above-mentioned lower rod receiving groove. The present invention designs the upper drying rod to be hollow. The inverted "U" shape, utilizing inner and outer double-layer sidewalls, enhances the structural strength of the upper drying rod. The inverted "U" shape of the upper drying rod can accommodate the lower drying rod, making the overall size of the combined upper and lower drying rods more compact and convenient for hanging clothes. Moreover, the lower drying rod can be designed to be thicker to meet the weight requirements for drying large items such as quilts. In addition, due to the higher structural strength of the upper drying rod, a lower hanging part can be used, making the overall height of the combined double drying rod assembly smaller, reducing the space required for storage in the main clothes rack unit, and allowing it to be used in a thinner main unit.

[0022] (2) A double drying rod assembly of the present invention has outer edges on both sides of the bottom of the lower drying rod body, so that the cross-sectional shape of the lower drying rod body is “⊥”, and the upper part of the lower drying rod body can be accommodated in the lower rod receiving groove. The width of the outer edges matches the width of the lower end of the upper drying rod body located on both sides of the lower rod receiving groove. The lower drying rod structure of this structure has higher strength, can withstand greater load weight, and can fit better with the upper drying rod, making the combined double drying rods more integrated and more convenient to use.

[0023] (3) A double drying rod assembly of the present invention includes an upper drying rod assembly that can extend and retract at both ends of the upper rod cavity of the upper drying rod body. The upper drying rod extension rod is a sheet metal structure with an inverted "U" shaped cross-section. The lower drying rod assembly includes a lower drying rod extension rod that can extend and retract at both ends of the lower rod cavity of the lower drying rod body. The upper drying rod extension rod with sheet metal structure is simple in structure, easy to manufacture, and has high structural strength.

[0024] (4) The double drying rod assembly of this utility model has a rectangular lower rod cavity and a hollow rectangular tube for the lower drying rod telescopic rod. The rectangular structure of the lower drying rod telescopic rod has strong load-bearing capacity and is easy to manufacture.

[0025] (5) A double drying rod assembly of the present invention has an upper drying rod telescopic rod with an upper telescopic rod limiting protrusion stamped at one end inside the upper rod cavity, and a lower drying rod telescopic rod with a lower telescopic rod limiting protrusion stamped at one end inside the lower rod cavity. The limiting protrusion is formed by stamping process, which is convenient to manufacture, and the limiting protrusion formed by stamping has better strength. After the telescopic rod is pulled out, it can maintain a stable connection strength with the drying rod body.

[0026] (6) A double drying rod assembly of the present invention has a hanging part on the upper part of the main body of the upper drying rod. The hanging part is wavy. The wavy hanging part has the advantages of convenient hanging operation and convenient manufacturing. Moreover, the height dimension is low, which further reduces the space required to store it in the clothes rack main unit.

[0027] (7) A double drying rod assembly of the present invention includes a flexible connector and an elastic member in the drying rod connection assembly. The elastic member is located in the corresponding lower drying rod telescopic rod. One end of the flexible connector is connected to the end cap of the upper telescopic rod. The other end of the flexible connector passes through the end cap of the corresponding lower telescopic rod and is connected to the corresponding elastic member. The drying rod connection assembly is simple in structure and only requires pulling down the lower drying rod when in use, making it convenient to use.

[0028] (8) The present invention provides an ultra-thin clothes drying rack, which adopts the above-mentioned double drying rod assembly. The lower drying rod can be used as a quilt drying rod, which increases the functionality of the clothes drying rack. Furthermore, when the double drying rod assembly is in the storage state, it can be raised as a whole into the drying rod cavity of the main unit, which can realize the hiding of the drying rod, making the overall structure of the ultra-thin clothes drying rack more concise and beautiful. The height dimension of the above-mentioned double drying rod assembly is smaller, which makes the thickness of the main unit thinner, which is conducive to the ultra-thin design of the clothes drying rack. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall assembly structure of a double drying rod assembly according to the present invention;

[0030] Figure 2 This is a schematic diagram of the pull-down usage state structure of a double drying rod assembly according to this utility model;

[0031] Figure 3 This is a schematic diagram of the telescopic rod of a double drying rod assembly in the unfolded state according to the present invention;

[0032] Figure 4 This is a partial cross-sectional view of a double drying rod assembly according to the present invention.

[0033] Figure 5 This is a cross-sectional schematic diagram of the separated upper and lower drying rod components in a double drying rod assembly of this utility model;

[0034] Figure 6This is a cross-sectional schematic diagram of the upper and lower drying rod components in the stored state of a double drying rod assembly according to this utility model;

[0035] Figure 7 This is a schematic diagram of the upper telescopic rod of a double drying rod assembly according to the present invention;

[0036] Figure 8 This is a schematic diagram of the lower telescopic rod of a double drying rod assembly according to the present invention;

[0037] Figure 9 This is a three-dimensional structural diagram of an ultra-thin clothes drying rack according to the present invention.

[0038] Explanation of the labels in the diagram:

[0039] 1. Upper drying rod assembly; 1-1. Upper drying rod body; 1-1a. Hanging part; 1-1b. Lower rod receiving groove; 1-1c. Upper rod cavity; 1-2. Upper drying rod telescopic rod; 1-2a. Upper telescopic rod end cap; 1-2b. Upper telescopic rod limiting protrusion;

[0040] 2. Lower drying rod assembly; 2-1. Lower drying rod body; 2-1a. Lower rod cavity; 2-1b. Outer edge; 2-1c. Cavity; 2-2. Lower drying rod telescopic rod; 2-2a. Lower telescopic rod end cap; 2-2b. Lower telescopic rod limiting protrusion;

[0041] 3. Drying rod connecting assembly; 3-1. Flexible connector; 3-2. Elastic component; 4. Main unit; 4-1. Drying rod cavity; 5. Lifting connector. Detailed Implementation

[0042] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments.

[0043] [Example]

[0044] Combination Figures 1 to 6As shown, this embodiment of a dual drying rod assembly includes an upper drying rod assembly 1, a lower drying rod assembly 2, and a drying rod connecting assembly 3. The two ends of the lower drying rod assembly 2 are respectively suspended below the upper drying rod assembly 1 via the drying rod connecting assembly 3. The lower drying rod assembly 2 has at least a stored state where it is housed under the upper drying rod assembly 1 and a working state where it moves downwards to a certain position below the upper drying rod assembly 1. Under the action of the drying rod connecting assembly 3, the lower drying rod assembly 2 can be stored or pulled down relative to the upper drying rod assembly 1. When pulled down, it forms an upper and lower drying space; the upper layer can be used to hang clothes, and the lower layer can be used to dry large items such as quilts, increasing functionality and practicality. In this embodiment, the upper drying rod assembly 1 includes an upper drying rod body 1-1 with an inverted "U" shaped cross-section. The interior of the upper drying rod body 1-1 has a hollow inverted "U" shaped upper rod cavity 1-1c, and a lower rod receiving groove 1-1b with an open lower end is formed at the bottom of the upper drying rod body 1-1. The upper drying rod is designed as a hollow inverted "U" shape, utilizing double-layered sidewalls to enhance its structural strength. The inverted "U" shape accommodates the lower drying rod, resulting in a more compact overall size after assembly, facilitating clothing hanging. The lower drying rod assembly 2 includes a lower drying rod body 2-1, which has a hollow lower rod cavity 2-1a. In the retracted state, the lower drying rod body 2-1 can be partially or completely accommodated within the lower rod receiving groove 1-1b. Because the upper drying rod adopts an inverted "U" shape with the lower rod receiving groove 1-1b, the lower drying rod can be designed to be thicker, meeting the weight requirements for drying large items such as quilts. Furthermore, the higher structural strength of the upper drying rod allows for a lower hanging section design, resulting in a smaller overall height of the combined double drying rod assembly. This reduces the space required for storage within the main clothes rack unit, allowing for use in thinner main units.

[0045] Reference Figure 5 and Figure 6 As shown, in this embodiment, the bottom sides of the lower drying rod body 2-1 have outer edges 2-1b, making the cross-sectional shape of the lower drying rod body 2-1 “⊥”. The inner side of the outer edges 2-1b has a hollow cavity 2-1c. The upper part of the lower drying rod body 2-1 can be accommodated in the lower rod receiving groove 1-1b. The width of the outer edges 2-1b matches the width of the lower end of the upper drying rod body 1-1 located on both sides of the lower rod receiving groove 1-1b. For example... Figure 6 As shown, the total width of the upper part of the outer edges 2-1b on both sides is equal to the total width of the upper drying rod body 1-1. This allows for a better fit with the upper drying rod, making the combined double drying rods more integrated and easier to use. Furthermore, the outer edges 2-1b enhance the structural strength of the lower drying rod body 2-1, enabling the lower drying rod to withstand greater loads.

[0046] Reference Figure 3 , Figure 5 and Figure 6 As shown, in this embodiment of the double drying rod assembly, the upper drying rod assembly 1 further includes an upper drying rod telescopic rod 1-2 that can extend and retract at both ends of the upper rod cavity 1-1c of the upper drying rod body 1-1. The upper drying rod telescopic rod 1-2 is a sheet metal structural component with an inverted "U" shaped cross-section. The outer end of the upper drying rod telescopic rod 1-2 is also provided with an upper telescopic rod end cap 1-2a. The upper drying rod telescopic rod 1-2, which adopts a sheet metal structure, has a simple structure, is easy to manufacture, and the inverted "U" shaped sheet metal component has high structural strength. The lower drying rod assembly 2 also includes a lower drying rod telescopic rod 2-2 that can extend and retract at both ends of the lower rod cavity 2-1a of the lower drying rod body 2-1. The outer end of the lower drying rod telescopic rod 2-2 is also provided with a lower telescopic rod end cap 2-2a. The outer end of the lower drying rod telescopic rod 2-2 is connected to the corresponding outer end of the upper drying rod telescopic rod 1-2 through the drying rod connecting assembly 3. Specifically, the lower rod cavity 2-1a is rectangular, and the lower drying rod telescopic rod 2-2 is a hollow rectangular tube. The rectangular structure of the lower drying rod telescopic rod provides strong load-bearing capacity and is easy to manufacture. For example... Figure 7 and Figure 8 As shown, the upper telescopic rod 1-2, located inside the upper rod cavity 1-1c, has an upper telescopic rod limiting protrusion 1-2b stamped at one end, and the lower telescopic rod 2-2, located inside the lower rod cavity 2-1a, also has a lower telescopic rod limiting protrusion 2-2b stamped at one end. The limiting protrusions are formed using a stamping process, which is convenient to manufacture, and the stamped limiting protrusions have better strength, maintaining a stable connection strength with the main body of the drying rod after the telescopic rod is pulled out.

[0047] like Figures 1 to 4 As shown in this embodiment, the upper part of the main body 1-1 of the upper drying rod is also provided with a hanging part 1-1a. The hanging part 1-1a is wavy. The wavy hanging part has the advantages of convenient hanging operation and easy manufacturing, and its height dimension is relatively low, further reducing the space required for its storage in the main body of the clothes rack. In addition, the wavy hanging part is also more aesthetically pleasing. It can be seen that because the main body 1-1 of the upper drying rod has higher structural strength, the design of the hanging part 1-1a has greater freedom, and the shape of the hanging part 1-1a can be adjusted according to specific design requirements.

[0048] In this embodiment, the aforementioned drying rod connecting assembly 3 is similar to the prior art, and can adopt a combination structure of elastic element and hanging rope or strap. Specifically, as follows... Figure 4As shown, the drying rod connecting assembly 3 in this embodiment includes a flexible connector 3-1 and an elastic element 3-2. The elastic element 3-2 is disposed inside the corresponding lower drying rod telescopic rod 2-2. One end of the flexible connector 3-1 is connected to the upper telescopic rod end cap 1-2a, and the other end of the flexible connector 3-1 passes through the corresponding lower telescopic rod end cap 2-2a and is connected to the corresponding elastic element 3-2. The flexible connector 3-1 can be a steel wire rope, and the elastic element 3-2 can be a tension spring. Using the above-mentioned drying rod connecting assembly, the structure is simple, and it is convenient to use as long as the lower drying rod is pulled down.

[0049] Furthermore, both the upper drying rod body 1-1 and the lower drying rod body 2-1 are made of aluminum alloy profiles, and end caps are correspondingly provided at both ends of the upper drying rod body 1-1 and the lower drying rod body 2-1. Additionally, the lower drying rod telescopic rod 2-2 can also be made of aluminum alloy profiles. Using aluminum alloy profiles to manufacture the corresponding rod bodies is convenient, provides high dimensional accuracy, and offers good structural strength.

[0050] Combination Figure 9 As shown, this embodiment also discloses an ultra-thin clothes rack with the aforementioned double drying rod assembly. This ultra-thin clothes rack uses the aforementioned double drying rod assembly, and the lower drying rod can be used as a quilt drying rod, increasing the functionality of the clothes rack. The height dimension of the aforementioned double drying rod assembly is smaller, allowing for a thinner main unit, which is beneficial for the ultra-thin design of the clothes rack. Specifically, similar to existing clothes racks, this ultra-thin clothes rack also includes a main unit 4 and a lifting connector 5. The main unit 4 has symmetrically arranged drying rod cavities 4-1 on both sides. Both drying rod cavities 4-1 are connected to the upper drying rod assembly 1 of a set of double drying rod assemblies via the lifting connector 5. When the double drying rod assembly is in the retracted state, it can rise as a whole into the drying rod cavity 4-1, and the bottom plane of the lower drying rod assembly 2 is flush with or approximately flush with the bottom plane of the main unit 4, enabling the drying rods to be hidden, making the overall structure of the ultra-thin clothes rack more concise and aesthetically pleasing. The bottom of the main unit 4, located between the two sets of double drying rod assemblies, also has a lighting panel that can be used as a ceiling light.

[0051] The aforementioned main unit 4 can be an existing hand-cranked or electric lifting main unit, and the lifting connector 5 can be an existing traction rope or scissor-type telescopic linkage structure. The main unit 4 and the lifting connector 5 can drive the upper drying rod assembly 1 to move up and down. When the upper drying rod assembly 1 and the lower drying rod assembly 2 adopt a telescopic drying rod structure, the lifting connectors 5 at both ends of the main unit 4 are respectively connected to the corresponding ends of the upper drying rod body 1-1. In practical applications, the upper drying rod assembly 1 can be a clothes drying rod, and the lower drying rod assembly 2 can be a quilt drying rod.

[0052] This utility model discloses a double drying rod assembly and an ultra-thin clothes rack. The upper drying rod is designed as a hollow inverted "U" shape, and the double-layered inner and outer sidewalls improve the structural strength of the upper drying rod. The inverted "U" shape of the upper drying rod can accommodate the lower drying rod, making the overall size of the combined upper and lower drying rods more compact and convenient for hanging clothes. Moreover, the lower drying rod can be designed to be thicker to meet the weight requirements for drying large items of clothing such as quilts. In addition, due to the higher structural strength of the upper drying rod, a lower hanging part can be used, making the overall height of the combined double drying rod assembly smaller, reducing the space required for storage in the main clothes rack unit, and allowing it to be used in a thinner main unit.

[0053] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A double drying rod assembly, comprising an upper drying rod assembly (1), a lower drying rod assembly (2), and a drying rod connecting assembly (3), wherein both ends of the lower drying rod assembly (2) are suspended below the upper drying rod assembly (1) via the drying rod connecting assembly (3), and the lower drying rod assembly (2) has at least a stored state at the lower part of the upper drying rod assembly (1) and a used state in which it moves downward to a certain position below the upper drying rod assembly (1), characterized in that: The upper drying rod assembly (1) includes an upper drying rod body (1-1) with an inverted "U" shaped cross-section. The upper drying rod body (1-1) has a hollow inverted "U" shaped upper rod cavity (1-1c) inside. A lower rod receiving groove (1-1b) with an open lower end is formed at the bottom of the upper drying rod body (1-1). The lower drying rod assembly (2) includes a lower drying rod body (2-1), the lower drying rod body (2-1) has a hollow lower rod cavity (2-1a) inside, and in the above-mentioned storage state, the lower drying rod body (2-1) can be partially or completely accommodated in the lower rod receiving groove (1-1b).

2. The dual drying rod assembly according to claim 1, characterized in that: The bottom sides of the lower drying rod body (2-1) have outer edges (2-1b), making the cross-sectional shape of the lower drying rod body (2-1) "⊥". The inner side of the outer edge (2-1b) has a hollow cavity (2-1c). The upper part of the lower drying rod body (2-1) can be accommodated in the lower rod receiving groove (1-1b). The width of the outer edge (2-1b) matches the width of the lower end of the upper drying rod body (1-1) located on both sides of the lower rod receiving groove (1-1b).

3. The dual drying rod assembly according to claim 1 or 2, characterized in that: The upper drying rod assembly (1) further includes an upper drying rod telescopic rod (1-2) that can extend and retract at both ends of the upper rod cavity (1-1c) of the upper drying rod body (1-1). The upper drying rod telescopic rod (1-2) is a sheet metal structural part with an inverted "U" shaped cross-section. The outer end of the upper drying rod telescopic rod (1-2) is also provided with an upper telescopic rod end cap (1-2a). The lower drying rod assembly (2) further includes a lower drying rod telescopic rod (2-2) that can extend and retract at both ends of the lower rod cavity (2-1a) of the lower drying rod body (2-1). The outer end of the lower drying rod telescopic rod (2-2) is also provided with a lower telescopic rod end cap (2-2a). The outer end of the lower drying rod telescopic rod (2-2) is connected to the outer end of the corresponding upper drying rod telescopic rod (1-2) through the drying rod connecting assembly (3).

4. The dual drying rod assembly according to claim 3, characterized in that: The lower rod cavity (2-1a) is rectangular, and the lower drying rod telescopic rod (2-2) is a hollow rectangular tube.

5. The dual drying rod assembly according to claim 3, characterized in that: The upper telescopic rod (1-2) located inside the upper rod cavity (1-1c) has an upper telescopic rod limiting protrusion (1-2b) stamped at one end, and the lower telescopic rod (2-2) located inside the lower rod cavity (2-1a) has a lower telescopic rod limiting protrusion (2-2b) stamped at one end.

6. The dual drying rod assembly according to claim 3, characterized in that: The upper part of the main body (1-1) of the upper drying rod is also provided with a hanging part (1-1a), which is wavy.

7. The dual drying rod assembly according to claim 3, characterized in that: The drying rod connecting assembly (3) includes a flexible connector (3-1) and an elastic element (3-2). The elastic element (3-2) is located inside the corresponding lower drying rod telescopic rod (2-2). One end of the flexible connector (3-1) is connected to the upper telescopic rod end cap (1-2a). The other end of the flexible connector (3-1) passes through the corresponding end cap (2-2a) of the lower telescopic rod and is connected to the corresponding elastic element (3-2).

8. The dual drying rod assembly according to claim 3, characterized in that: Both the upper drying rod body (1-1) and the lower drying rod body (2-1) are made of aluminum alloy profiles.

9. An ultra-thin clothes drying rack, characterized in that: The assembly includes the dual drying rods as described in any one of claims 1 to 8.

10. The ultra-thin clothes drying rack according to claim 9, characterized in that: It also includes a main unit (4) and a lifting connector (5). The main unit (4) has symmetrical drying rod cavities (4-1) on both sides. The drying rod cavities (4-1) on both sides are connected to the upper drying rod assembly (1) of a set of double drying rod assemblies through the lifting connector (5). When the double drying rod assembly is in the storage state, it can rise as a whole into the drying rod cavity (4-1). The bottom plane of the lower drying rod assembly (2) is flush with or approximately flush with the bottom plane of the main unit (4). The bottom of the main unit (4) located between the two sets of double drying rod assemblies also has a lighting panel.

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