Clothes airing machine

Abstract

The utility model discloses a clothes airing machine, relates to the technical field of clothes airing equipment, the clothes airing machine includes base, worm and worm gear, the base is installed on the host casing of clothes airing machine, worm is rotatablely arranged on the base and is used for connecting the output end of power unit, worm gear and worm mesh and is in transmission connection with the clothes airing pole of clothes airing machine, worm gear is connected with the power unit. The worm gear is provided with a plurality of first heat dissipation openings penetrating through spokes of the worm gear, the multiple first heat dissipation openings surround the rotating center of the worm gear, and any two adjacent first heat dissipation openings are arranged at intervals. The worm gear is provided with the first heat dissipation openings penetrating through the spokes of the worm gear, so that heat generated by the worm gear can be more effectively dissipated to the external environment, thermal stress generated by heating of the worm gear can be reduced, the temperature of the worm gear is reduced, meshing transmission of the worm gear and the worm is more stable, and the service life of the worm gear is prolonged. And the service life of the speed reduction system is prolonged, and the safety performance of the clothes airing machine is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of clothes airing equipment, and particularly relates to a clothes airing machine. BACKGROUND

[0002] Electric clothes airing machine, also known as electric clothes hanger or intelligent clothes hanger, is a kind of convenient equipment in modern home life, which generally realizes the lifting of airing rod by the way of motor drive, saves time and effort.

[0003] At present, the power system of part of electric clothes airing machine on the market adopts open reduction gearbox, the reduction gearbox is mainly composed of worm gear and gear set meshing, and the power unit is connected with airing rod by reduction gearbox to realize speed reduction and torque increase, but due to the relatively high working environment temperature of electric clothes airing machine (usually installed in balcony or other outdoor or indoor near window position), the closed shell structure of reduction gearbox, large load and high speed, the high heat is easily generated in the reduction gearbox, which leads to the performance decline of reduction gearbox, the noise increase, and even a series of problems such as failure, which not only affects the long-term use experience of users, but also threatens the life and property safety of users. UTILITY MODEL CONTENTS

[0004] The utility model embodiment aims at providing a clothes airing machine, which can solve the above problems in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] Provided is a clothes airing machine, comprising:

[0007] A base is installed on the main housing of the clothes airing machine.

[0008] A worm is rotatably arranged on the base and is used to connect the output end of the power unit.

[0009] A worm gear is meshed with the worm and is drivingly connected with the airing rod of the clothes airing machine.

[0010] A plurality of first heat dissipation openings are formed on the worm gear and penetrate the spoke of the worm gear, the plurality of first heat dissipation openings are arranged around the rotation center of the worm gear, and any two adjacent first heat dissipation openings are arranged at intervals.

[0011] As an optional embodiment, the worm gear comprises a first gear and a second gear, the second gear is axially stacked on one side of the first gear, the worm gear is meshed with the worm through the first gear, and the second gear is drivingly connected with the airing rod.

[0012] Each of the first heat dissipation openings is arranged on the first gear and surrounds the second gear; or, each of the first heat dissipation openings is arranged on the second gear and surrounds the first gear.

[0013] As an optional implementation, the second gear has a smaller outer diameter than the first gear, and one side of the first gear is provided with a spoke boss, and the second gear is arranged on the spoke boss.

[0014] Each of the first heat dissipation openings is arranged on the spoke boss and alternately arranged with the teeth of the second gear in a direction surrounding the rotation center of the worm.

[0015] As an optional implementation, the projection of each of the first heat dissipation openings in the axial direction of the worm wheel is in an elliptical shape, and the major axis of each of the first heat dissipation openings passes through the rotation center of the worm wheel.

[0016] As an optional implementation, the worm has a hollow structure.

[0017] As an optional implementation, a hollow accommodating cavity is formed inside the base, the worm and the worm wheel are rotatably arranged in the accommodating cavity, and the base is further provided with a second heat dissipation opening communicating with the accommodating cavity.

[0018] As an optional implementation, a support frame is arranged in the second heat dissipation opening, and one end of the worm is rotatably connected to the support frame.

[0019] The worm is uniformly provided with a plurality of spaced fan blades around the outer periphery thereof, and the fan blades are configured to draw air outside the base into the accommodating cavity through the second heat dissipation opening or discharge air in the accommodating cavity to the outside of the base through the second heat dissipation opening when the worm rotates.

[0020] As an optional implementation, the support frame includes a longitudinal frame and a transverse frame connected to each other, opposite ends of the longitudinal frame and the transverse frame are connected to the edge of the second heat dissipation opening, and the worm is rotatably connected to the connection between the longitudinal frame and the transverse frame.

[0021] The longitudinal frame and the transverse frame are spaced to form a ventilation space.

[0022] As an optional implementation, the fixed end of the power unit is arranged outside the base and fixedly connected to the base.

[0023] The output end of the power unit is movably arranged through one side of the base to the accommodating cavity and connected to the worm; or, the worm is rotatably arranged through one side of the base to the outside of the base and connected to the output end of the power unit.

[0024] As an optional implementation, the worm wheel is made of plastic material, and the worm is made of metal material.

[0025] The beneficial effects of the utility model are that: the airing machine is provided with the worm and the worm wheel which are rotatably arranged on the base, a plurality of first heat dissipation openings penetrating the spoke of the worm wheel are arranged on the worm wheel, the heat generated by the worm wheel can be effectively dissipated to the external environment, the thermal stress of the worm wheel caused by heating is reduced, the first heat dissipation openings provide corresponding channels for the heat dissipation of the worm wheel, the airflow formed during the operation of the reduction gearbox can take away the heat of the worm wheel through the first heat dissipation openings during the rotation of the worm wheel, the temperature of the worm wheel is reduced, the engagement transmission of the worm wheel and the worm is more stable, the service life of the reduction system is prolonged, and the safety performance of the airing machine is improved.

[0026] The first heat dissipation openings are arranged around the rotation center of the worm wheel, which can improve the temperature uniformity of the worm wheel, make the heat more evenly distributed on the whole worm wheel, avoid local overheating, and more evenly distribute the stress on the worm wheel, avoid local stress concentration on the worm wheel, reduce the risk of structural damage caused by local stress of the worm wheel due to the first heat dissipation openings, and maintain the carrying capacity of the worm wheel. BRIEF DESCRIPTION OF DRAWINGS

[0027] The utility model will be further described in detail below according to the drawings and examples.

[0028] Figure 1 It is the whole structure schematic diagram of the power system of the airing machine described in the utility model embodiment;

[0029] Figure 2 It is the internal structure schematic diagram of the power system of the airing machine described in the utility model embodiment;

[0030] Figure 3 It is the internal structure schematic diagram of the power system of the airing machine described in the utility model embodiment;

[0031] Figure 4 It is the worm wheel structure schematic diagram described in the utility model embodiment;

[0032] Figure 5 It is the worm wheel plan view described in the utility model embodiment;

[0033] Figure 6 It is the base explosion view described in the utility model embodiment;

[0034] Figure 7 It is the worm section view described in the utility model embodiment.

[0035] Fig. 10, base; 11, accommodating cavity; 12, second heat dissipation opening; 13, support frame; 131, longitudinal frame; 132, transverse frame; 20, worm; 21, fan blade; 30, worm gear; 31, first heat dissipation opening; 32, first gear; 33, second gear; 34, spoke boss; 40, winding wheel; 41, traction member; 50, main machine shell; 60, power unit; 61, fixed end; 62, output end. DETAILED DESCRIPTION

[0036] In order to make the technical problems solved by the utility model, the technical scheme adopted and the technical effects reached more clear, the technical scheme of the utility model embodiment is further described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0037] In the description of the utility model, unless explicitly defined and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0038] In the utility model, unless explicitly defined and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0039] As known from the background art, the power system of the current electric clothes drying machine generally adopts an open type speed reducer. The speed reducer of this type is mainly composed of a worm gear and a gear set. The power unit is connected to the clothes drying rod through the speed reducer to realize speed reduction and torque increase.

[0040] Due to the relatively high temperature of the working environment of the clothes drying machine (usually installed on the balcony or other outdoor or indoor locations close to the window, which may be directly exposed to sunlight or affected by the ambient temperature), the closed structure of the reduction gearbox housing (limiting the heat dissipation channel), the large load and high speed (the changes in load and speed during the operation of the clothes drying machine will affect the friction inside the reduction gearbox), and other reasons, the reduction gearbox is prone to generate high heat, and the generated heat is difficult to be dissipated in time.

[0041] The high heat and poor heat dissipation performance will affect the performance of the lubricating oil and the meshing effect of the transmission components, accelerate the aging of the materials, cause the transmission efficiency of the reduction gearbox to decrease, the noise to increase, and even a series of problems such as failure, which not only affects the long-term use experience of the user, but also poses a certain threat to the life and property safety of the user.

[0042] Therefore, the present embodiment provides a clothes drying machine which aims to improve the heat dissipation effect of the power system (especially the reduction mechanism) to avoid equipment damage or safety hazard caused by high temperature of the power system.

[0043] In order to facilitate a more comprehensive understanding of the present scheme, the present embodiment first makes a simple exemplary description of the overall structure of the clothes drying machine, and it should be noted that the subsequent provided structure of the clothes drying machine is not actually limited or required, but only as a supplement to the technical scheme claimed by the present utility model.

[0044] The clothes drying machine comprises a main housing 50 (not shown in the figure), which serves as the support base of the clothes drying machine and has an internal space sufficient to accommodate relevant components. On this basis, the main housing 50 is provided with a power unit 60, and the lower part of the main housing 50 is provided with a clothes drying rod in transmission connection with the power unit 60. The power unit 60 is connected to the clothes drying rod through a traction member 41 (such as a steel wire rope, a transmission belt, etc.).

[0045] In an embodiment, the power unit 60 can be an electric motor, which drives the lifting movement of the clothes drying rod through the power supply. When the user needs to raise or lower the clothes drying rod, he / she only needs to send the corresponding instruction through the switch or remote controller, and the motor will start and realize the lifting operation at the preset speed and distance.

[0046] The clothes drying rod can provide a corresponding hanging position for the clothes to be dried below the main housing 50, so as to determine the drying area that can be provided by the clothes drying machine according to the specific structural design of the clothes drying rod.

[0047] Please refer to the accompanying drawings Figures 1-3The embodiment mainly relates to a power system of a clothes drying machine, which mainly comprises a base 10. It should be understood that the base 10 can be used as a basic support part of the power system or the speed reduction mechanism in the clothes drying machine, which is usually fixedly installed on a main machine shell 50 in the basic structure of the clothes drying machine. The main function of the base 10 is to provide a stable support platform, so that the related parts of the power system or the speed reduction mechanism of the clothes drying machine can be accurately and reliably installed on the main machine shell 50, thereby enabling the related parts to cooperate with each other to provide stable power output.

[0048] In order to enable the base 10 to play a stable supporting role, the base 10 is usually made of a solid metal material (such as aluminum alloy, stainless steel or high-strength steel) to ensure that it has good strength and durability. Of course, the base 10 of the embodiment can also be made of plastic or other types of materials, and the embodiment does not have strict limitations and requirements in this regard.

[0049] In the above embodiment, the clothes drying machine further comprises a worm 20 and a worm wheel 30. The worm 20 is rotatably arranged on the base 10, and a first end thereof is used for connecting an output end 62 of a power unit 60 or directly used as the output end 62 of the power unit 60. For example, in the embodiment in which the power unit 60 is an electric motor, the electric motor comprises a stator as a fixed end 61 and a rotor as an output end 62. In the scheme in which the worm 20 and the rotor are in a split structure and need to be connected through subsequent assembly processes, the worm 20 and the rotor can be fixedly connected by means of key connection, pin connection, screw connection, welding and the like, but are not limited to the above-mentioned assembly manners. In the embodiment in which the worm 20 is directly used as the rotor of the electric motor, the worm 20 and the rotor can actually be considered as being processed by an integral molding process. One end of the worm 20 is processed into a worm gear 20 required for meshing with the worm wheel 30, and the other end of the worm 20 is processed into an output shaft structure capable of cooperating with the stator of the electric motor. The worm gear 20 and the output shaft can be processed by milling, casting, molding and the like, but are not limited to the above-mentioned molding processes.

[0050] The worm wheel 30 is meshed with the worm 20 on the base 10 and is drivingly connected with the clothes drying rod of the clothes drying machine, so as to realize the torque increase and speed reduction of the output power of the power unit 60 and control the lifting movement of the clothes drying rod.

[0051] Please continue to refer to the accompanying drawings Figures 2-3In an embodiment, the clothes drying machine further comprises a winding wheel 40, which is part of the power system and is also rotatably arranged on the base 10. The winding wheel 40 is in transmission connection with the worm wheel 30, so that the power unit 60 can drive the winding wheel 40 to rotate through the worm 20 and the worm wheel 30. The winding wheel 40 is wound with a steel wire rope as a traction member 41. One end of the steel wire rope is fixed to the winding wheel 40, and the other end extends away from the winding wheel 40 and is connected with the drying rod. The winding wheel 40 is driven by the power unit 60 to rotate forward and reverse. During this period, the steel wire rope wound on the winding wheel 40 is unwound or wound on the winding wheel 40, so as to drive the drying rod to move up and down.

[0052] Please refer to the drawings in the specification Figures 2-5 The worm wheel 30 is provided with a plurality of first heat dissipation openings 31 penetrating the spokes thereof. It needs to be explained that the worm wheel 30 comprises spokes and a rim. The spokes mainly play a role in connection and support in the worm wheel 30, and the spokes connect the rim and the center part (similar to the hub) of the worm wheel 30, so as to ensure the stability and strength of the structure of the worm wheel 30. The rim of the worm wheel 30 is the part engaged with the worm 20, and the shape and size thereof are designed to match the worm gear of the worm 20, that is, a plurality of teeth are usually distributed on the rim, and the teeth are engaged with the worm gear of the worm 20 to realize power transmission. In the above-mentioned embodiment comprising the winding wheel 40, the outer periphery of the winding wheel 40 can also be arranged on the outer teeth engaged with the teeth of the worm wheel 30, so that the worm 20 can drive the winding wheel 40 to rotate through the worm wheel 30.

[0053] The worm wheel 30 is provided with a plurality of first heat dissipation openings 31 penetrating the spokes thereof. It needs to be explained that the worm wheel 30 comprises spokes and a rim. The spokes mainly play a role in connection and support in the worm wheel 30, and the spokes connect the rim and the center part (similar to the hub) of the worm wheel 30, so as to ensure the stability and strength of the structure of the worm wheel 30. The rim of the worm wheel 30 is the part engaged with the worm 20, and the shape and size thereof are designed to match the worm gear of the worm 20, that is, a plurality of teeth are usually distributed on the rim, and the teeth are engaged with the worm gear of the worm 20 to realize power transmission. In the above-mentioned embodiment comprising the winding wheel 40, the outer periphery of the winding wheel 40 can also be arranged on the outer teeth engaged with the teeth of the worm wheel 30, so that the worm 20 can drive the winding wheel 40 to rotate through the worm wheel 30.

[0054] In addition, the design of the first heat dissipation openings 31 helps to maintain the stability of the temperature of the reduction mechanism, reduces the efficiency loss caused by heat loss, and also maintains the performance of the lubricating oil in the power system, so as to ensure that the power system stably provides power output.

[0055] Based on the above, a series of first heat dissipation vents 31 are connected in sequence to form a line that surrounds the rotation center of the worm gear 30. Furthermore, along the circumferential direction of the multiple first heat dissipation vents 31 surrounding the rotation center of the worm gear 30, any two adjacent first heat dissipation vents 31 are spaced apart. This not only helps improve the temperature uniformity of the worm gear 30, allowing heat to be distributed more evenly across the entire worm gear 30 and preventing localized overheating, but the surrounding and spaced first heat dissipation vents 31 design also more evenly distributes stress on the worm gear 30, preventing localized stress concentration. Ultimately, this reduces the risk of structural damage caused by excessive localized stress due to the first heat dissipation vents 31, thus maintaining the load-bearing capacity of the worm gear 30. The evenly distributed first heat dissipation vents also maintain the structural integrity of the worm gear 30, avoiding structural weakening caused by an excessive number of first heat dissipation vents 31 or an unreasonable layout. This helps maintain the rigidity of the worm gear 30, making it more stable during transmission and reducing vibration and noise.

[0056] It is also worth mentioning that by opening the first heat dissipation vent 31 on the worm gear 30, the amount of material used in the processing of the worm gear 30 can be reduced, thereby reducing the production cost of the clothes drying machine.

[0057] From the above, it can be understood that the worm gear 30 needs to establish a linkage relationship with both the worm 20 and the clothes drying rod of the clothes drying machine (via the winding wheel 40 and the traction component 41). To achieve the change in transmission direction, the worm gear 30 and worm 20 generally require the cooperation of helical gears. However, the worm gear 30 and the clothes drying rod (winding wheel 40) of the clothes drying machine do not require transmission via helical gears. Therefore... Figures 4-5 As shown, the worm gear 30 in this embodiment adopts a structure including a first gear 32 and a second gear 33. The first gear 32 is the part of the worm gear 30 that directly meshes with the worm 20. If the worm 20 has helical teeth, the teeth of the first gear 32 are helical teeth that match these helical teeth. The second gear 33 is stacked on top of the first gear 32 along the axial direction of the worm 20 (or possibly on the bottom depending on the design), and is used to mesh with a gear provided on the winding reel 40, which is connected to the clothesline via the traction member 41 (steel wire rope). In this way, the worm gear 30 can not only receive power from the worm 20 through the first gear 32, but also connect to the winding reel 40 through the second gear 33. When the worm 20 rotates, its helical teeth mesh with the teeth of the first gear 32, thereby driving the first gear 32 to rotate. Furthermore, due to the special tooth profiles of the worm 20 and the worm gear 30, this meshing usually has a high transmission ratio and good self-locking performance, preventing the worm gear 30 from driving the worm 20 to rotate in the opposite direction due to the force from the winding reel 40. The second gear 33 can rotate with the first gear 32, driving the winding reel 40 to rotate forward or in reverse.

[0058] In addition, the worm gear 30 is arranged as a structure of the first gear 32 and the second gear 33, which not only enables the speed reduction mechanism to achieve speed reduction and torque increase through the worm gear 30 and the worm 20, but also enables the worm gear 30 to achieve further speed reduction and torque increase by changing the size of the first gear 32 and the second gear 33. By arranging the size of the first gear 32 to be smaller than the size of the second gear 33, the transmission ratio of the worm 20 and the reel 40 can be increased, the speed reduction mechanism can achieve two-stage or more speed reduction transmission, the transmission process between the power unit 60 and the clothesline is more stable, and the control of the power unit 60 on the clothesline is more accurate.

[0059] In the above embodiment, in order to avoid the structure interference between the first heat dissipation port 31 and the first gear 32 and the second gear 33, the first heat dissipation port 31 is arranged between the teeth of the first gear 32 and the teeth of the second gear 33. For example, each first heat dissipation port 31 is arranged on the first gear 32 and surrounds the second gear 33, or each first heat dissipation port 31 is arranged on the second gear 33 and surrounds the first gear 32. Whether the first heat dissipation port 31 is arranged on the first gear 32 or the second gear 33, and whether it surrounds the second gear 33 or the first gear 32, depends on the structure of the worm gear 30 and the design requirements of the clothes drying machine. For example, when the outer diameter of the first gear 32 is larger than the outer diameter of the second gear 33, the spokes of the first gear 32 are exposed to the outer periphery of the second gear 33, which provides a corresponding arrangement position for the first heat dissipation port 31. In this case, each first heat dissipation port 31 can be arranged on the spoke of the first gear 32. When the outer diameter of the second gear 33 is larger than the outer diameter of the first gear 32, the spokes of the second gear 33 are exposed to the outer periphery of the first gear 32. In this case, the first heat dissipation port 31 can be arranged on the spoke of the second gear 33 and surround the first gear 32.

[0060] Arranging the first heat dissipation port 31 between the first gear 32 and the second gear 33 not only avoids the interference of the first heat dissipation port 31 with the teeth of the two gears, thereby affecting the transmission of the worm gear 30, the worm 20 and the reel 40, but also enables the first heat dissipation port 31 to more effectively dissipate the heat generated by the first gear 32 and the second gear 33 during the operation of the worm gear 30, thereby reducing the accumulation of heat inside the worm gear 30 and lowering the temperature of each gear, achieving the purpose of further improving the heat dissipation effect and improving the transmission stability.

[0061] Please continue to refer to the description of the accompanying drawings Figures 2-5In the case that the outer diameter size of the second gear 33 is smaller than the outer diameter size of the first gear 32, the outer diameter size of the second gear 33 can be as small as possible, thereby increasing the transmission ratio between the second gear 33 and the winding wheel 40 and making the transmission process of the clothes drying rod more stable.

[0062] In order to provide sufficient processing positions for the first heat dissipation openings 31 and ensure the heat dissipation effect of the worm gear 30, the first gear 32 of the embodiment further has a spoke boss 34 on one side in the circumferential direction, and the second gear 33 is arranged on the spoke boss 34. The spoke boss 34 can control the spacing between the first gear 32 and the second gear 33 and reduce the possibility of interference between the winding wheel 40 and the first gear 32.

[0063] In the embodiment, the first gear 32 and the second gear 33 are integrated, and in the embodiment in which the first gear 32 and the second gear 33 are two independent parts that are installed and combined through subsequent assembly processes, the design of the spoke boss 34 provides a clear installation reference for the second gear 33, which helps to achieve more accurate positioning during installation and reduces installation errors.

[0064] Most importantly, each first heat dissipation opening 31 is arranged on the spoke boss 34, thereby increasing the size of the first heat dissipation opening 31 between the first gear 32 and the second gear 33. In addition, each first heat dissipation opening 31 is alternately arranged with the teeth of the second gear 33 in the direction of surrounding the rotation center of the worm 20, which reduces the interference of the first heat dissipation opening 31 with the second gear 33, ensures the structural strength of the second gear 33, and improves the compactness of the overall structure of the worm gear 30. In addition, the design of the teeth of the second gear 33 alternately offsetting the first heat dissipation openings 31 can facilitate the layout and installation of the speed reduction mechanism. In addition, the teeth of any two adjacent second gears 33 can provide as large a setting position as possible for the first heat dissipation openings 31, so that the heat dissipation efficiency of the worm gear 30 is maximized under the current size, and the first heat dissipation openings 31 are evenly distributed on the first gear 32, thereby maintaining the structural strength of the worm gear 30.

[0065] On the basis of the above structure, one end of the first heat dissipation opening 31 is arranged as close as possible to the bottom position between the two adjacent teeth on the premise of avoiding interference with the second gear 33, and the other end of the first heat dissipation opening 31 is arranged on the spoke of the first gear 32 after passing through the spoke boss 34, thereby maximizing the size of the first heat dissipation opening 31.

[0066] As Figure 5As shown, in the present embodiment, the projection of each first heat dissipation opening 31 in the axial direction of the worm wheel 30 is in the shape of an ellipse, and the long axis of each first heat dissipation opening 31 passes through the center of rotation of the worm wheel 30, so as to make the best use of the space area of the worm wheel 30 in the radial direction under the premise that the ground interferes with the teeth of the first gear 32 and the second gear 33, so as to ensure that the strength of the worm wheel 30 will not be greatly weakened by the opening direction, achieve a larger heat dissipation area, and help to maintain the compactness of the structure of the worm wheel 30, reduce the volume and weight of the transmission system. It can also be understood that each first heat dissipation opening 31 extends in the radial direction of the worm wheel 30, and can also guide the air to flow in the radial direction of the worm wheel 30, thereby optimizing the airflow path. This design helps to reduce air resistance and improve heat dissipation efficiency.

[0067] In an embodiment, in order to further improve the heat dissipation efficiency of the speed reduction mechanism in the clothes drying machine, the heat generated by the worm 20 and the worm wheel 30 during transmission can be quickly dissipated to the external air, as shown in Figure 7 The worm 20 is also provided in a hollow structure in the present embodiment. The hollow structure of the worm 20 can significantly reduce its weight compared to a solid structure. In the speed reduction mechanism, reducing the weight helps to reduce the energy consumption of the power unit 60 and improve the response speed of the moving parts, so that the control of the clothes drying rod in the lifting process is more sensitive. The hollow worm 20 also reduces the amount of material required for processing, thereby reducing production costs, which is of great significance for mass production and application.

[0068] Most importantly, the hollow structure facilitates heat dissipation inside the worm 20, allowing the worm 20 to effectively dissipate the heat generated during operation, reducing the temperature of the worm 20, reducing heat transfer between the worm 20 and the worm wheel 30, and thereby improving the stability and life of the transmission.

[0069] In an embodiment, as shown in Figures 2-3 , Figure 6 The base 10 is provided in a shell structure, and a hollow accommodating cavity 11 is formed inside the shell structure. The worm 20 and the worm wheel 30 are rotatably arranged in the accommodating cavity 11. One end of the worm 20 can be arranged to extend out of the accommodating cavity 11 to the outside of the base 10, so as to realize connection with the output end 62 of the power unit 60. The shell structure of the base 10 can provide a closed and protective environment for the related components such as the worm 20 and the worm wheel 30, so as to prevent external impurities such as dust and moisture from entering the inside and affecting the normal operation of the precise components such as the worm wheel 30 and the worm 20, thereby prolonging the service life of the clothes drying machine as much as possible. At the same time, the structure of the speed reduction mechanism composed of the worm 20, the worm wheel 30 and other components is more compact, which is conducive to the installation and maintenance of the components.

[0070] On the basis of the above structure, the base 10 is further provided with a second heat dissipation opening 12 communicating with the accommodating cavity 11, which can provide space for the heat in the accommodating cavity 11 to be discharged out of the base 10, avoiding the situation that the heat accumulation of the worm 20 and the worm gear 30 is intensified due to being installed in the accommodating cavity 11.

[0071] It should be noted that the number of the second heat dissipation openings 12 and the positions thereof provided on the base 10 are not strictly limited and required in this embodiment, as long as the structural strength requirement of the base 10 and the heat dissipation requirement of the internal components can be met.

[0072] In an embodiment, referring to the drawings attached hereto, Figure 6 The second heat dissipation opening 12 is provided with a support frame 13, which only blocks part of the space of the second heat dissipation opening 12 in the direction from the accommodating cavity 11 to the outside of the base 10, reserving sufficient ventilation space between the accommodating cavity 11 and the outside of the base 10. One end of the worm 20 is connected to the output end 62 of the power unit 60, and the other end is rotatably connected to the support frame 13, so that the worm 20 can stably rotate in the accommodating cavity 11 under the drive of the power unit 60, avoiding the emergence of a cantilever structure.

[0073] The worm 20 is uniformly provided with a plurality of mutually spaced fan blades 21 around the outer peripheral portion thereof. The fan blades 21 are configured to draw air outside the base 10 into the accommodating cavity 11 through the second heat dissipation opening 12 when the worm 20 rotates, thereby accelerating the heat exchange efficiency between the components such as the worm 20 and the worm gear 30 in the accommodating cavity 11 and the cold air outside the base 10. Alternatively, the fan blades 21 can be configured to discharge the air in the accommodating cavity 11 out of the base 10 through the second heat dissipation opening 12, thereby relieving the heat accumulation problem in the accommodating cavity 11, and allowing the cold air outside the base 10 to be supplemented into the accommodating cavity 11 through other gaps or openings on the base 10, so as to regulate the temperature of the accommodating cavity 11.

[0074] In the above technical solution, by designing the base 10 to have a heat dissipation function, the axial direction of the worm 20 is further directed towards the second heat dissipation opening 12, so that the airflow direction formed during the rotation of the worm 20 is consistent with the axial direction of the worm 20, thereby making it easier for air to be discharged through the second heat dissipation opening 12 or drawn into the base 10 through the second heat dissipation opening 12, i.e., from passive heat dissipation to active heat dissipation, thereby improving the heat dissipation efficiency of the mechanism. It should be noted that the mechanism actually utilizes the rotation of the worm 20 itself to drive heat dissipation, without the need for additional fans or heat sinks, which can maximize the compactness of the structure between components and reduce the installation space.

[0075] In one embodiment, in order to reduce the shielding of the second heat dissipation port 12 by the support frame 13 as much as possible while ensuring that the worm 20 has sufficient support, and to ensure the efficiency of air exhaust or suction of the second heat dissipation port 12, the support frame 13 of this embodiment includes a connected longitudinal frame 131 and a transverse frame 132. The opposite ends of the longitudinal frame 131 and the transverse frame 132 are connected to the port edges of the second heat dissipation port 12, achieving connection with the base 10. The transverse frame 132 and the longitudinal frame 131 are both in the form of elongated rods. The opposite ends of the transverse frame 132 are specifically connected to the left and right port edges of the second heat dissipation port 12, and the longitudinal frame 131 is perpendicular to the transverse frame 132 and is connected to the upper and lower port edges of the second heat dissipation port 12. The two are connected at the center of the second heat dissipation port 12, and the worm 20 is rotatably connected to the connection between the longitudinal frame 131 and the transverse frame 132. In this way, the distance from the worm 20 to the port edge of the second heat dissipation port 12 at any position is consistent, ensuring that the longitudinal frame 131 and the transverse frame 132 are evenly stressed during the rotation of the worm 20, achieving the purpose of stable support of the worm 20 by the support frame 13.

[0076] The space between the longitudinal frame 131 and the transverse frame 132 serves as part of the second heat dissipation port 12, forming a ventilation space that connects the accommodation cavity 11 and the outside of the base 10. Since the ventilation space surrounds the outer peripheral portion of the worm 20 in the axial direction of the worm 20, the air flow generated by the fan blade 21 driven by the worm 20 can also smoothly pass through the second heat dissipation port 12, and the presence of the support frame 13 does not have excessive impact on the ventilation of the second heat dissipation port 12.

[0077] Continuing on the basis of the above embodiment in which the base 10 is in the form of a shell structure and the inside of the base 10 forms a hollow accommodation cavity 11, please refer to the accompanying drawings Figures 1-3The fixed end 61 of the power unit 60 is arranged outside the base 10 and fixedly connected with the base 10. The output end 62 of the power unit 60 is movably arranged through one side of the base 10 to the accommodating cavity 11 and connected with the worm 20, or the worm 20 is rotatably arranged through one side of the base 10 to the outside of the base 10 and connected with the output end 62 of the power unit 60. For the convenience of understanding, the power unit 60 in this embodiment is arranged as a motor, that is, the stator of the motor (together with the shell of the motor) is arranged as the fixed end 61 of the power unit 60, and the rotor of the motor (and the worm 20) is arranged as the output end 62 of the power unit 60. It can be understood that since the heat generated by the motor is much larger than the heat generated by the worm 20, the worm wheel 30 and the related components in the running process, arranging the stator of the motor outside the base 10 can avoid the heat emitted by the motor directly transmitted into the accommodating cavity 11 to affect the heat dissipation efficiency of the related components such as the worm 20 and the worm wheel 30, and the heat generated by the motor can be directly transmitted into the main machine shell 50, which can provide a larger heat dissipation space for the motor and minimize the possibility of the heat of the motor affecting the components in the accommodating cavity 11. In addition, arranging the motor outside the base 10 can not only ensure the connection relationship between the motor and the base 10, but also avoid the motor occupying the space in the accommodating cavity 11, which provides a larger installation position and space for the motor outside the base 10 and is convenient for the maintenance of the base 10.

[0078] Finally, it is worth mentioning that the worm wheel 30 of the embodiment can be made of plastic material, and the worm 20 can be made of metal material. The cooperation of the plastic worm wheel 30 and the metal worm 20 can not only make the movement of the worm wheel 30 more stable, but also significantly reduce the noise generated during the transmission of the worm wheel 30 and the worm 20, and improve the overall running quality of the clothes drying machine. The metal worm 20 ensures the structural strength of the power output main component directly connected with the output end 62 of the power unit 60. Especially when made of non-ferrous metals or alloys such as copper, aluminum, steel, etc., it has high strength and hardness, can withstand large pressure and load, and has good wear resistance, thereby prolonging the service life of the worm 20.

[0079] In summary, the combination of the metal worm 20 and the plastic worm wheel 30 realizes the complementation of performance, which not only ensures the stability and durability of transmission, but also reduces noise and weight. However, it should be noted that due to the heat resistance of the plastic worm wheel 30 is inferior to that of the metal worm 20, therefore, in actual application scenarios, the tooth thickness size of the plastic worm wheel 30 should be increased, for example, the tooth thickness size of the worm wheel 30 is allocated as 2 / 3, and the tooth thickness size of the worm 20 is allocated as 1 / 3, so that the mechanical properties of the two are closer, thereby making the service life of the plastic worm wheel 30 and the metal worm 20 as close as possible, and reducing the maintenance frequency of the clothes drying machine.

[0080] In the description herein, it is to be understood that the terms "upper", "lower", "left", "right", and the like, refer to directions or positions as viewed in the drawings for purposes of convenience in identifying various elements and do not necessarily refer to the actual position or orientation of the elements, and are therefore not to be construed as limiting the application. Furthermore, the terms "first", "second", and the like, merely identify one of the elements for convenience and do not require or imply that the elements so identified are necessarily different or that the application requires a particular order of the elements.

[0081] In the description of the present specification, the description referring to the terms "an embodiment", "an example", and the like, means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.

[0082] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

[0083] The technical principles of the present application are described above in conjunction with specific embodiments. These descriptions are only for the purpose of explaining the principles of the present application, and cannot be interpreted in any way as limiting the scope of protection of the present application. Based on the explanation here, those skilled in the art do not need to exert creative labor to think of other specific embodiments of the present application, and these embodiments will fall within the scope of protection of the present application.

Claims

1. A clothes drying machine, characterized in that, The utility model relates to a clothes drying machine, comprising: a base mounted on a main housing of the clothes drying machine; a worm rotatably arranged on the base and connected to an output end of a power unit; a worm wheel engaged with the worm and connected to a clothes drying rod of the clothes drying machine; a plurality of first heat dissipation openings are formed in the worm wheel and extend through the spokes of the worm wheel, the first heat dissipation openings are arranged around the rotation center of the worm wheel, and any two adjacent first heat dissipation openings are spaced apart from each other.

2. The clothes drying machine according to claim 1, characterized in that, The worm wheel comprises a first gear and a second gear, the second gear is axially stacked on one side of the first gear, the worm wheel is engaged with the worm through the first gear, and the second gear is connected to the clothes drying rod; each first heat dissipation opening is formed in the first gear and arranged around the second gear; or each first heat dissipation opening is formed in the second gear and arranged around the first gear.

3. The clothes drying machine according to claim 2, characterized in that, The outer diameter of the second gear is smaller than that of the first gear, one side of the first gear is provided with a spoke boss, and the second gear is arranged on the spoke boss; each first heat dissipation opening is formed in the spoke boss and alternately arranged with the teeth of the second gear around the rotation center of the worm in a direction.

4. The clothes drying machine according to any one of claims 1 to 3, characterized in that, The projection of each first heat dissipation opening in the axial direction of the worm wheel is in an elliptical shape, and the major axis of each first heat dissipation opening passes through the rotation center of the worm wheel.

5. The clothes drying machine according to claim 1, characterized in that, The worm has a hollow structure.

6. The clothes drying machine according to claim 1 or 5, characterized in that, The base has a hollow accommodating cavity formed therein, the worm and the worm wheel are rotatably arranged in the accommodating cavity, and the base is provided with a second heat dissipation opening communicating with the accommodating cavity.

7. The clothes drying machine according to claim 6, characterized in that, A support frame is arranged in the second heat dissipation opening, and one end of the worm is rotatably connected to the support frame. The worm is uniformly provided with a plurality of spaced-apart fan blades around the outer periphery thereof, and the fan blades are configured to draw air outside the base into the accommodating cavity through the second heat dissipation opening or discharge air in the accommodating cavity to the outside of the base through the second heat dissipation opening when the worm rotates.

8. The clothes drying machine according to claim 7, characterized in that, The support frame comprises a longitudinal frame and a transverse frame connected to each other, opposite ends of the longitudinal frame and the transverse frame are connected to the rim of the second heat dissipation opening, and the worm is rotatably connected to the connection between the longitudinal frame and the transverse frame. The longitudinal frame and the transverse frame form a ventilation space therebetween.

9. The clothes drying machine according to claim 6, characterized in that, The fixed end of the power unit is arranged outside the base and fixedly connected to the base. The output end of the power unit is movably arranged through one side of the base to the accommodating cavity and connected to the worm; or the worm is rotatably arranged through one side of the base to the outside of the base and connected to the output end of the power unit.

10. The clothes drying machine according to claim 1, characterized in that, The worm wheel is made of plastic, and the worm is made of metal.

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