Drying assembly with coil spring tension adjustment mechanism

Abstract

The utility model discloses an airing assembly with spring tension adjusting mechanism, which comprises a shell, a pull-out rod and a winding assembly. The winding assembly is arranged in the shell, and the shell is provided with an entrance. The winding assembly comprises a winding shaft, a spring, a winding drum and an airing cloth wound on the winding drum. The winding shaft is arranged in the spring and placed in the winding drum. The second end of the shell is provided with a gear adjusting cover and a limiting pin. The first end of the spring is fixedly connected with the first end of the winding shaft. The winding shaft passes through the second end of the winding drum and the gear adjusting cover in sequence and exposes the outer end of the shell to form an adjusting part. The second end of the spring is fixedly connected with the end of the winding drum. The inside of the gear adjusting cover is provided with a plurality of limiting grooves arranged in a radial pattern. The second end of the winding shaft is provided with a pin hole. The limiting pin penetrates the pin hole and extends radially from both sides of the winding shaft and selectively locates in the limiting groove to change the tightness of the spring.

Description

Technical Field

[0001] This utility model relates to a drying assembly, and more particularly to a drying assembly with a spring tension adjustment mechanism. Background Technology

[0002] In the field of smart home devices, drying racks are an indispensable part of daily life, and their design and function directly affect the user experience.

[0003] With continuous technological advancements, drying racks are no longer limited to simple support and hanging functions, but are gradually evolving towards automation, convenience, and personalization. Among these advancements, the automatic winding and unwinding mechanism of drying nets has become a key element in enhancing the user experience.

[0004] In traditional drying equipment, the torsion spring is one of the core components, providing the power for the rolling and unrolling of the drying net.

[0005] However, in practical applications, the tightness of the torsion spring directly determines the performance and lifespan of the drying net. Specifically, if the torsion spring is too loose, the drying net will not be able to be rolled up smoothly into the housing, affecting the overall aesthetics and space utilization. Conversely, if the torsion spring is too tight, the user will need to apply a lot of force when pulling out the drying net, which is not only inconvenient to operate, but may also damage the drying net or component structure due to excessive force.

[0006] Currently, some drying racks on the market attempt to balance this problem by setting the initial tension of the torsion spring. However, due to factors such as manufacturing tolerances, material differences, and performance degradation after long-term use, the preset tension is often difficult to accurately match all usage scenarios and user needs.

[0007] In addition, although some high-end drying devices are equipped with torsion spring tension adjustment mechanisms, these mechanisms often employ complex designs, such as disassembling screws and adjusting gear sets. Not only is the adjustment process cumbersome, but it also requires professional tools and skills, making it difficult for ordinary users to operate on their own. Summary of the Invention

[0008] The technical problem to be solved by this utility model is to provide a drying assembly with a spring tension adjustment mechanism.

[0009] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a drying assembly with a spring tension adjustment mechanism, comprising: a housing, a pull-out rod, and a winding assembly; the winding assembly is disposed inside the housing, and the housing has an inlet and outlet; The winding assembly includes a roller, a coil spring, a drum, and a drying cloth wound on the drum. The roller is located inside the coil spring and together with it is placed inside the drum. The drum is located inside the housing along the extension direction of the housing and is rotatable relative to the housing. The drying cloth extends out of the inlet and outlet and is connected to the pull-out rod outside the housing. The second end of the housing is provided with a gear adjustment cover. The first end of the coil spring is fixedly connected to the first end of the spool. The spool passes through the second end of the drum and the gear adjustment cover in sequence and protrudes from the outer end of the housing to form an adjustment section. The second end of the coil spring is fixedly connected to the end of the drum. The gear adjustment cover has a plurality of radially arranged limiting grooves on its inner side. The second end of the spool has a limiting protrusion protruding from the circumference of the spool. The limiting protrusion is selectively located in the limiting groove to change the tension of the coil spring.

[0010] The preferred technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: the second end of the scroll is provided with a pin hole, the limiting pin extends radially through the pin hole and extends to both sides of the scroll to form the limiting protrusion, the inner side of the gear adjustment cover is provided with a limiting ring protrusion, the diameter of the limiting ring protrusion is adapted to the length of the limiting pin, and the limiting ring protrusion is used to restrict the limiting pin from disengaging from the gear adjustment cover.

[0011] The preferred technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: the gear adjustment cover is provided with an operation hole, and the end face of the second end of the scroll is exposed to the operation hole; the adjustment part is an operation groove on the end face of the second end of the scroll for tool operation.

[0012] The preferred technical solution adopted by this utility model to solve the above-mentioned technical problems is: the drum includes drum sleeves located at both ends.

[0013] The preferred technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: the roll sleeve includes a rotating shaft part, a disc part and an embedded cylindrical part in sequence. The outer periphery of the embedded cylindrical part is provided with an axially extending limiting rib. The two ends of the roll are provided with axially extending notches and grooves. The limiting rib and the notches and grooves are connected in cooperation.

[0014] The preferred technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: the first end of the drum is provided with a first drum sleeve, the second end of the drum is provided with a second drum sleeve, the middle of the rotating shaft part of the second drum sleeve is hollow and provided with a shaft hole, the drum shaft passes through the shaft hole, and the second end of the coil spring is fixed to the disc part of the second drum sleeve.

[0015] The preferred technical solution adopted by this utility model to solve the above-mentioned technical problems is: a drying assembly with a spring tension adjustment mechanism, comprising: a housing, a pull-out rod, and a winding assembly; the winding assembly is disposed inside the housing, and the housing has an inlet and outlet; The winding assembly includes a roller, a coil spring, a drum, and a drying cloth wound on the drum. The roller is located inside the coil spring and together with it is placed inside the drum. The drum is located inside the housing along the extension direction of the housing and is rotatable relative to the housing. The drying cloth extends out of the inlet and outlet and is connected to the pull-out rod outside the housing. The second end of the housing is provided with a gear adjustment cover and a limiting pin. The first end of the coil spring is fixedly connected to the first end of the spool. The spool passes through the second end of the drum and the gear adjustment cover in sequence and protrudes from the outer end of the housing to form an adjustment part. The second end of the coil spring is fixedly connected to the end of the drum. The inner side of the gear adjustment cover is provided with a plurality of radially arranged limiting grooves. The second end of the spool is provided with a pin hole. The limiting pin passes through the pin hole and extends radially to both sides of the spool, and is selectively located in the limiting groove. The gear adjustment cover has a limiting ring protrusion on its inner side. The diameter of the limiting ring protrusion is adapted to the length of the limiting pin. The limiting ring protrusion is used to prevent the limiting pin from disengaging from the gear adjustment cover. The end of the reel is provided with an operating groove for tool operation. By pushing the reel inward with the tool, the limiting pin is disengaged from the limiting groove, and then rotating it a certain angle, the tension of the coil spring can be adjusted. After the force of the tool is removed, the thrust of the coil spring will push the limiting pin into the limiting groove.

[0016] The preferred technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: the first end of the drum is provided with a first drum sleeve, the second end of the drum is provided with a second drum sleeve, the first end of the housing is provided with a support end cover, the first drum sleeve is rotatably supported on the support end cover, and the second drum sleeve is rotatably supported on the gear adjustment cover.

[0017] The preferred technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: both roll sleeves include a rotating shaft part, a disc part and an embedded cylindrical part in sequence. The outer periphery of the embedded cylindrical part is provided with an axially extending limiting rib. Both ends of the roll are provided with axially extending notches. The limiting rib and the notches are connected in cooperation.

[0018] The preferred technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: the middle of the rotating shaft part of the second roll sleeve is provided with a shaft hole, the roll shaft passes through the shaft hole, and the second end of the coil spring is fixed to the disc part of the second roll sleeve.

[0019] Compared with existing technologies, the advantages of this invention are: Multiple fixed positions are provided through the cooperation of the limiting pin and the radial limiting groove, allowing users to select the appropriate position according to the actual load, such as the amount of clothing and wind power. This avoids the fabric roll being too loose and difficult to retract, or too tight and difficult to pull, thus making it suitable for different usage scenarios. After adjustment, the coil spring provides a constant rebound force, ensuring smooth fabric roll extension and retraction. Furthermore, it avoids the coil spring being in an overloaded or slack state for a long time, reducing metal fatigue damage and improving overall durability. Compared with external adjustment knobs, in this solution, all adjustment mechanisms are integrated into the end of the housing, occupying no extra space and facilitating installation and maintenance. Attached Figure Description

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0021] Figure 1 This is a schematic diagram of a drying assembly with a spring tension adjustment mechanism according to this embodiment; Figure 2 Disassembly of a drying assembly with a spring tension adjustment mechanism according to this embodiment. Figure 1 ; Figure 3 Disassembly of a drying assembly with a spring tension adjustment mechanism according to this embodiment. Figure 2 ; Figure 4 Disassembly of a drying assembly with a spring tension adjustment mechanism according to this embodiment. Figure 3 ; Figure 5 This embodiment describes a drying assembly with a spring tension adjustment mechanism. Figure 3 A magnified view of a portion of the image; Figure 6 This embodiment describes a drying assembly with a spring tension adjustment mechanism. Figure 4 A magnified view of a portion of the image; Figure 7 This is a schematic diagram of the second end of the winding component in a drying assembly with a spring tension adjustment mechanism according to this embodiment; Figure 8 This is a schematic diagram of the gear adjustment cover in a drying assembly with a spring tension adjustment mechanism according to this embodiment. Figure 1 ; Figure 9 This is a schematic diagram of the gear adjustment cover in a drying assembly with a spring tension adjustment mechanism according to this embodiment. Figure 2; Figure 10 This is a schematic diagram of the positioning state of the limit pin in a drying assembly with a spring tension adjustment mechanism according to this embodiment; Figure 11 This is a schematic diagram of the positioning pin disengaging from the limiting groove in a drying assembly with a coil spring tension adjustment mechanism according to this embodiment. Detailed Implementation

[0022] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0023] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it will not be further defined and explained in subsequent figures.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "front," "rear," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They 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. Therefore, they should not be construed as limitations on this utility model. Similarly, "first" and "second" are only for ease of understanding and have no other directional meaning, and cannot be considered as limitations on this utility model.

[0025] like Figure 1-3 As shown, this embodiment provides a drying assembly with a spring tension adjustment mechanism, including: a housing 1, a pull-out rod 2, and a winding assembly 3. The winding assembly 3 is disposed inside the housing 1, and the housing 1 has an inlet / outlet 4.

[0026] like Figure 1-3 As shown, the winding assembly 3 includes a roller 5, a coil spring 6, a drum 7, and a drying cloth 8 wound on the drum 7. The roller 5 is located inside the coil spring 6 and together they are placed inside the drum 7. The drum 7 is disposed inside the housing 1 along the extending direction of the housing 1 and can rotate relative to the housing 1. The drying cloth 8 extends out of the inlet 4 and is connected to the pull rod 2 outside the housing 1. The drying cloth 8 can have a mesh-like perforated structure to ensure ventilation and drying.

[0027] like Figure 1-7As shown, the second end of the housing 1 is provided with a gear adjustment cover 9 and a limiting pin 10. The first end of the coil spring 6 is fixedly connected to the first end of the winding shaft 5. The winding shaft 5 passes through the second end of the drum 7 and the gear adjustment cover 9 in sequence, and its end is exposed outside the housing 1 as an adjustment part 11. The second end of the coil spring 6 is fixedly connected to the end of the drum 7.

[0028] like Figure 6-8 As shown in Figures 10 and 11, the gear adjustment cover 9 has multiple radially arranged limiting grooves 12 on its inner side. The second end of the spool 5 has a pin hole 27. A limiting pin 10 is radially inserted into the pin hole 27 at the end of the spool 5 and extends radially outwards from both sides of the spool 5, selectively engaging into different limiting grooves 12. Alternatively, the limiting pin can be replaced by a common protrusion. The limiting pin 10 passing through the pin hole 27 here acts as a limiting protrusion for selectively entering the limiting groove 12 for positioning.

[0029] like Figure 10-11 As shown, by pushing the reel 5 inward with a tool, the limiting pin 10 disengages from the current limiting groove 12. Rotating the reel 5 causes the head of the coil spring 6 to rotate accordingly, while the end of the coil spring 6 is fixed to the drum 7, thus twisting the coil spring 6 to change its preload. After the tool's force is removed, the spring force of the coil spring 6 pushes the limiting pin 10 out of the limiting groove 12 and then rotates it a certain angle to push it into the new limiting groove 12 for fixation, thereby locking the tension of the coil spring 6.

[0030] The engagement of the limiting pin 10 and the radial limiting groove 12 provides multiple fixed positions, allowing users to select the appropriate position based on the actual load, such as the amount of clothing and wind power. This prevents the drying roll 8 from being too loose and difficult to retract, or too tight and difficult to pull, thus adapting to different usage scenarios. After adjustment, the coil spring 6 provides a constant rebound force, ensuring smooth extension and retraction of the drying roll 8. Furthermore, it prevents the coil spring 6 from being in a state of overload or relaxation for extended periods, reducing metal fatigue damage and improving overall durability. Compared to external adjustment knobs, in this embodiment, all adjustment mechanisms are integrated into the end of the housing 1, occupying no extra space and facilitating installation and maintenance.

[0031] like Figure 6 , 8 As shown in Figure 10, the gear adjustment cover 9 has an operation hole 13, and the end face of the second end of the reel 5 is exposed through the operation hole 13. The adjustment part 11 is an operation groove 14 on the end face of the second end of the reel 5 for the tool 100 to operate on. The user can directly complete the adjustment with an external tool, simplifying the maintenance process. The operation groove 14 can be a flat slot, hexagonal slot, cross slot, etc., to accommodate tools such as hex wrenches and screwdrivers.

[0032] like Figure 1-4As shown, the first end of the drum 7 is provided with a first drum sleeve 15, the second end of the drum 7 is provided with a second drum sleeve 16, the first end of the housing 1 is provided with a support end cover 26, the first drum sleeve 15 is rotatably supported on the support end cover 26, and the second drum sleeve 16 is rotatably supported on the gear adjustment cover 9.

[0033] like Figure 8 As shown, a limiting ring protrusion 18 is designed on the inner side of the gear adjustment cover 9. The diameter of the limiting ring protrusion 18 is adapted to the length of the limiting pin 10, and the inner diameter is slightly larger than the length of the limiting pin 10, so that the limiting pin 10 always moves axially within the annular space of the limiting ring protrusion 18. The limiting ring protrusion 18 forms a physical barrier to ensure that the limiting pin 10 always maintains a fit with the gear adjustment cover 9 during the adjustment process, avoiding the limiting pin 10 from dislodging or jamming due to vibration or misoperation, ensuring the long-term stable operation of the adjustment mechanism and reducing the failure rate.

[0034] like Figure 8 As shown, the protruding ribs 19 between the limiting grooves 12 form a protrusion at the edge of the operating hole 13 inside the gear adjustment cover 9. This protrusion further increases the guiding effect of the hole on the roller 5, making the rotation and axial movement of the shaft more stable.

[0035] like Figure 5-7 As shown, the reel sleeve sequentially includes a pivot portion 20, a disc portion 21, and an embedded cylindrical portion 22. The pivot portion 20 of the second reel sleeve 16 has a hollow center with a shaft hole 17, through which the reel 5 passes. The second end of the coil spring 6 is fixed to the second reel sleeve 16. More specifically, the second end of the coil spring 6 has a bending portion 30, and the disc portion 21 of the second reel sleeve 16 has a connecting hole 31 for the bending portion to engage. The second end of the coil spring 6 is fixed to the disc portion 21 of the second reel sleeve 16.

[0036] like Figure 5-7 As shown, the outer periphery of the embedded cylindrical portion 22 is provided with axially extending limiting ribs 23, and both ends of the drum 7 are provided with axially extending notches 24. The limiting ribs 23 and the notches 24 are connected in a fitting manner. The fit between the limiting ribs 23 and the notches 24 ensures that the drum sleeve and the drum 7 rotate synchronously, making torque transmission more reliable. The drum sleeve and the drum 7 are connected by a snap-fit ​​type, eliminating the need for bolts and simplifying production, maintenance, and replacement.

[0037] like Figure 9 As shown, the gear adjustment cover 9 has a protrusion 25 on its outer side, and the operation hole 13 is located on the protrusion 25. The protrusion 25 serves to thicken the cover body in a local area of ​​the gear adjustment cover 9, making the cover body stronger.

[0038] This invention describes a drying assembly with a spring tension adjustment mechanism. Specific examples are used to illustrate the principle and implementation of this invention. The descriptions of these embodiments are merely for the purpose of helping to understand this invention and its core concepts. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this invention.

Claims

1. A drying assembly with a spring tension adjustment mechanism, characterized in that... include: The housing, pull-out rod, and winding assembly; the winding assembly is disposed inside the housing, and the housing has an inlet and outlet. The winding assembly includes a roller, a coil spring, a drum, and a drying cloth wound on the drum. The roller is located inside the coil spring and together with it is placed inside the drum. The drum is located inside the housing along the extension direction of the housing and is rotatable relative to the housing. The drying cloth extends out of the inlet and outlet and is connected to the pull-out rod outside the housing. The second end of the housing is provided with a gear adjustment cover. The first end of the coil spring is fixedly connected to the first end of the spool. The spool passes through the second end of the drum and the gear adjustment cover in sequence and protrudes from the outer end of the housing to form an adjustment section. The second end of the coil spring is fixedly connected to the end of the drum. The gear adjustment cover has a plurality of radially arranged limiting grooves on its inner side. The second end of the spool has a limiting protrusion protruding from the circumference of the spool. The limiting protrusion is selectively located in the limiting groove to change the tension of the coil spring.

2. The drying assembly with a spring tension adjustment mechanism according to claim 1, characterized in that: The second end of the reel is provided with a pin hole and a limiting pin. The limiting pin extends radially through the pin hole and extends to both sides of the reel to form the limiting protrusion. The inner side of the gear adjustment cover is provided with a limiting ring protrusion. The diameter of the limiting ring protrusion is adapted to the length of the limiting pin. The limiting ring protrusion is used to restrict the limiting pin from disengaging from the gear adjustment cover.

3. The drying assembly with a spring tension adjustment mechanism according to claim 1, characterized in that: The gear adjustment cover is provided with an operation hole, and the end face of the second end of the reel is exposed to the operation hole; the adjustment part is an operation groove on the end face of the second end of the reel for tool operation.

4. The drying assembly with a spring tension adjustment mechanism according to claim 1, characterized in that: The reel includes reel sleeves located at both ends.

5. The drying assembly with a spring tension adjustment mechanism according to claim 4, characterized in that: The reel sleeve includes a rotating shaft, a disc, and an embedded cylindrical part in sequence. The outer periphery of the embedded cylindrical part is provided with an axially extending limiting rib. Both ends of the reel are provided with axially extending notches. The limiting rib and the notches are connected in cooperation.

6. The drying assembly with a spring tension adjustment mechanism according to claim 5, characterized in that: The first end of the reel is provided with a first reel sleeve, and the second end of the reel is provided with a second reel sleeve. The second reel sleeve has a hollow shaft hole in the middle of its rotating shaft portion. The reel passes through the shaft hole, and the second end of the coil spring is fixed to the disc portion of the second reel sleeve.

7. A drying assembly with a spring tension adjustment mechanism, characterized in that... include: The housing, pull-out rod, and winding assembly; the winding assembly is disposed inside the housing, and the housing has an inlet and outlet. The winding assembly includes a roller, a coil spring, a drum, and a drying cloth wound on the drum. The roller is located inside the coil spring and together with it is placed inside the drum. The drum is located inside the housing along the extension direction of the housing and is rotatable relative to the housing. The drying cloth extends out of the inlet and outlet and is connected to the pull-out rod outside the housing. The second end of the housing is provided with a gear adjustment cover and a limiting pin. The first end of the coil spring is fixedly connected to the first end of the spool. The spool passes through the second end of the drum and the gear adjustment cover in sequence and protrudes from the outer end of the housing to form an adjustment part. The second end of the coil spring is fixedly connected to the end of the drum. The inner side of the gear adjustment cover is provided with a plurality of radially arranged limiting grooves. The second end of the spool is provided with a pin hole. The limiting pin passes through the pin hole and extends radially to both sides of the spool, and is selectively located in the limiting groove. The gear adjustment cover has a limiting ring protrusion on its inner side. The diameter of the limiting ring protrusion is adapted to the length of the limiting pin. The limiting ring protrusion is used to prevent the limiting pin from disengaging from the gear adjustment cover. The end of the reel is provided with an operating groove for tool operation. By pushing the reel inward with the tool, the limiting pin is disengaged from the limiting groove, and then rotating it a certain angle, the tension of the coil spring can be adjusted. After the force of the tool is removed, the thrust of the coil spring will push the limiting pin into the limiting groove.

8. The drying assembly with a spring tension adjustment mechanism according to claim 7, characterized in that: The first end of the drum is provided with a first drum sleeve, the second end of the drum is provided with a second drum sleeve, the first end of the housing is provided with a support end cover, the first drum sleeve is rotatably supported on the support end cover, and the second drum sleeve is rotatably supported on the gear adjustment cover.

9. The drying assembly with a spring tension adjustment mechanism according to claim 7, characterized in that: Both roll sleeves sequentially include a rotating shaft, a disc, and an embedded cylindrical part. The outer periphery of the embedded cylindrical part is provided with an axially extending limiting rib, and both ends of the roll are provided with axially extending notches. The limiting rib and the notches are connected in a cooperative manner.

10. The drying assembly with a spring tension adjustment mechanism according to claim 8, characterized in that: The second reel sleeve has a hollow shaft hole in the middle of its rotating shaft portion, through which the reel passes. The second end of the coil spring is fixed to the disc portion of the second reel sleeve.

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