Resistance meeting switch and clothes airing machine

Abstract

The utility model discloses a resistance-encountering switch and a clothes airing machine, and relates to the technical field of clothes airing equipment, the resistance-encountering switch can be applied to the clothes airing machine, the resistance-encountering switch comprises a supporting frame and a supporting wheel, a penetrating connection space is arranged on the supporting frame in a penetrating mode, and first rotating parts are integrally arranged on the two opposite sides, located in the penetrating connection space, of the supporting frame respectively; the supporting wheel is located in the penetrating connection space, second rotating parts are integrally arranged at the two opposite ends of the supporting wheel, and the second rotating parts are rotationally connected with the first rotating parts. The contact area between the supporting wheel and the supporting frame can be effectively controlled under the constraint of the first rotating part and the second rotating part, so that the supporting wheel can rotate relatively to the supporting frame more smoothly under the action of the traction piece, the condition that the supporting wheel is abraded by the traction piece is relieved, the service life of equipment is prolonged, and meanwhile, the service life of the equipment is prolonged. Noise generated in the rotating process of the supporting wheels and the supporting frame is also restrained.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of clothes airing equipment, especially to a resistance-encountering switch and clothes airing machine. BACKGROUND

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

[0003] At present, electric clothes airing machine generally has resistance-encountering function, if obstacle is encountered in the process of lowering airing rod, resistance-encountering switch for providing resistance-encountering function will be triggered, so that the power system of clothes airing machine stops running, and the clothes hanger stops working, which effectively avoids accidental injury of airing rod to users.

[0004] And resistance-encountering switch is generally composed of sensor and trigger bracket, roller is arranged on trigger bracket, roller is linked with airing rod through traction piece, so that trigger bracket can change position state when airing rod encounters resistance, thereby realizing the triggering of sensor. However, the structure of existing trigger bracket is relatively complex, relatively more material components are required for assembly, the cost is relatively high, and the resistance between roller and trigger bracket is relatively large, which easily causes the stall of roller, causes the sliding friction between traction piece and roller, produces abnormal sound, and also accelerates the wear speed of roller, which affects the long-term use experience of users. SUMMARY

[0005] The purpose of the embodiment of the utility model is to provide a resistance-encountering switch and clothes airing machine, which can solve the above-mentioned problems existing in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] In the first aspect, a resistance-encountering switch is provided, which comprises:

[0008] A support bracket is provided with a through space, and the support bracket is integrally provided with a first rotating part on the opposite sides of the through space;

[0009] A support wheel is located in the through space, and the opposite ends of the support wheel are integrally provided with a second rotating part, and the second rotating part is rotatably connected with the first rotating part.

[0010] As an optional implementation manner, one of the first rotating part and the second rotating part is provided as a rotating shaft, and the other is provided as a shaft hole matched with the rotating shaft.

[0011] As an optional implementation, the first rotating part is a rotating shaft, and the second rotating part is a shaft hole.

[0012] As an optional implementation, the length of the rotating shaft is not more than 20% of the length of the supporting wheel.

[0013] As an optional implementation, the supporting frame comprises:

[0014] a connecting frame; and

[0015] a connecting rod, which is provided in two sections and is arranged at opposite ends of the connecting frame to define the passing space, and the first rotating part is arranged at each of the two sections of the connecting rod.

[0016] As an optional implementation, the supporting frame further comprises a supporting rod, one end of each of the two connecting rods is connected to an end of the connecting frame, and the other end of each of the two connecting rods is connected to an end of the supporting rod.

[0017] The supporting wheel, the two connecting rods, and the supporting rod form a passing hole for the traction member to pass through, or the supporting wheel, the two connecting rods, and the connecting frame form a passing hole for the traction member to pass through.

[0018] As an optional implementation, the outer periphery of the supporting wheel is uniformly provided with a plurality of anti-skid lines, and each of the anti-skid lines is arranged in the axial direction of the supporting wheel.

[0019] As an optional implementation, the supporting frame is made of plastic.

[0020] In a second aspect, an airer is provided, which comprises:

[0021] a main housing;

[0022] a power unit, which comprises a base and a power unit, the base is mounted on the main housing, and the power unit is arranged on the base and is connected to an airer rod below the main housing through a traction member;

[0023] The resistance-encountering switch of the first aspect, the supporting frame is rotatably arranged on the base, and the traction member passes through the passing space and abuts against the supporting wheel.

[0024] A trigger switch is arranged on the base and is located on the movement path of the supporting frame.

[0025] As an optional implementation, an elastic component is further arranged between the supporting frame and the base.

[0026] In the case that the traction member abuts against the support frame, the support frame is close to the trigger switch and triggers the trigger switch, and the elastic component is used for continuously applying an elastic force to the support frame to separate the support frame from the trigger switch; or in the case that the traction member abuts against the support frame, the support frame separates from the trigger switch, and the elastic component is used for continuously applying an elastic force to the support frame to move towards the trigger switch and trigger the trigger switch.

[0027] The beneficial effects of the utility model are as follows: the resistance-encountering switch sets the first rotating part and the second rotating part on the support frame and the support wheel, which can improve the structural integration of the support frame and the support wheel, improve the overall structural stability of the resistance-encountering switch, reduce the material components between the support frame and the support wheel, effectively reduce the product manufacturing cost, and improve the assembly efficiency.

[0028] Since the first rotating part and the second rotating part are respectively arranged on both sides of the support frame and both ends of the support wheel, the contact area between the support wheel and the support frame can be effectively controlled under the constraint of the first rotating part and the second rotating part in the rotatable connection state of the support frame and the support wheel, so that the support wheel can more smoothly rotate relative to the support frame under the action of the traction member, the wear of the support wheel by the traction member is alleviated, the service life of the equipment is prolonged, and the noise generated during the rotation of the support wheel and the support frame is also inhibited, so that the user can have a better experience during the use of the clothes drying machine. BRIEF DESCRIPTION OF DRAWINGS

[0029] The utility model will be further described in detail below according to the drawings and examples.

[0030] Figure 1 The utility model embodiment described clothes drying machine overall structure schematic view;

[0031] Figure 2 The utility model embodiment described resistance-encountering switch structure schematic view one;

[0032] Figure 3 The utility model embodiment described resistance-encountering switch explosion map;

[0033] Figure 4 The utility model embodiment described resistance-encountering switch structure schematic view two;

[0034] Figure 5 The utility model embodiment described resistance-encountering switch sectional view;

[0035] Figure 6 The utility model embodiment described clothes drying machine front view;

[0036] Figure 7This is one of the isometric views of the clothes drying rack described in this embodiment of the utility model;

[0037] Figure 8 This is the second isometric view of the clothes drying rack described in this embodiment of the utility model.

[0038] In the figure: 10, support frame; 11, first rotating part; 12, connecting frame; 13, connecting rod; 14, support rod; 15, through space; 20, support wheel; 21, second rotating part; 22, anti-slip texture; 30, power unit; 31, base; 32, traction component; 40, trigger switch; 50, elastic component. Detailed Implementation

[0039] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model are further described in detail below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0040] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0042] As can be seen from the background technology, the current obstacle detection switch used in clothes drying racks has a relatively complex structure. For example, the trigger bracket needs to be connected to the roller through a pin so that the roller can be rotatably installed on it. This not only results in a relatively large number of materials in the overall structure of the obstacle detection switch, but also increases the processing and assembly costs and difficulties of the product to varying degrees.

[0043] Moreover, due to the relationship that the rotating shaft arranged on the trigger support penetrates the roller, the outer circumferential surface of the pin shaft and the hole wall of the shaft hole on the roller form a large range of surface contact, which causes a large friction force between the shaft hole and the pin shaft during the rotation of the roller around the pin shaft driven by the traction member, thereby forming a large resistance to the rotation of the roller relative to the trigger support, which easily causes the roller to stop rotating. Thus, during the driving of the traction member to move the clothes drying rod up and down, the traction member will slide and rub with the roller, producing an abnormal sound and accelerating the wear speed of the roller, affecting the long-term use experience of the user.

[0044] Therefore, the present embodiment provides a resistance-encountering switch, which can be applied to a clothes drying machine, and aims to simplify the assembly structure complexity between the support frame and the support wheel, reduce the contact area therebetween, and reduce the product cost while improving the smoothness of the clothes drying machine during operation and the user experience during use.

[0045] 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 clothes drying machine does not have actual limitations and requirements for the resistance-encountering switch structure provided subsequently, but only serves as a supplement to the technical scheme claimed in the present embodiment.

[0046] The clothes drying machine comprises a main machine shell (not shown in the figure), which serves as the support basis of the clothes drying machine and has an internal space sufficient to accommodate related components. On this basis, the main machine shell further comprises a power unit, and the lower part of the main machine shell is provided with a clothes drying rod in transmission connection with the power unit. The power unit is connected to the clothes drying rod through a traction member (such as a steel wire rope, a transmission belt, etc.).

[0047] Please refer to the attached drawings of the specification Figures 1-5 The present embodiment provides a resistance-encountering switch, which can be applied to a clothes drying machine, and aims to simplify the assembly structure complexity between the support frame and the support wheel, reduce the contact area therebetween, and reduce the product cost while improving the smoothness of the clothes drying machine during operation and the user experience during use.

[0048] Specifically, the resistance switch includes a support frame 10 and a support wheel 20. The support frame 10 is rotatably mounted on the base 31 of the power unit 30 of the clothes drying machine, or is rotatably mounted on one side of the wheel train component of the clothes drying machine and cooperates with the traction member connected to the clothes drying rod. In the actual application scenario of the clothes drying machine, the position state of the support frame 10 can be obtained and judged by setting a sensor or a series of physical switches on the rotation track of the support frame 10. The support frame 10 is the overall support basis of the resistance switch, and a through space 15 is provided through the support frame 10 to provide a corresponding mounting space for the support wheel 20. The through direction of the through space 15 of the support frame 10 is generally determined according to the specific installation position of the support frame 10 in the actual application scenario of the clothes drying machine and the relative position relationship between the support frame 10 and the traction member 32. In addition to ensuring that the support wheel 20 can be in the mounting space, the traction member 32 can also pass through the mounting space to pass through the support frame 10, so that the two ends of the traction member 32 can act on the support frame 10 by lapping the support wheel 20 under the condition that the two ends of the traction member 32 are connected to the power unit 30 and the clothes drying rod, respectively.

[0049] It can be understood that, in order to stably support the support wheel 20 on the base 31 of the power unit 30 by the support frame 10 and maintain the stability of the overall structure of the support frame 10 when subjected to external force, the support frame 10 needs to be made of a material with sufficient strength, such as metal or high-strength plastic.

[0050] In the above embodiment, the support wheel 20 is rotatably connected to the support frame 10 and located in the through space 15. The support wheel 20 is a component of the resistance switch that directly contacts the traction member 32 in the actual application scenario of the clothes drying machine. The design of the support wheel 20 generally includes a rolling surface with a circular cross section, which is used to contact and guide the movement of the traction member 32. During the lifting and lowering movement of the clothes drying rod of the clothes drying machine, the traction member 32 laps on the support wheel 20. With the movement of the traction member 32 in the main machine shell, the traction member 32 applies a circumferential force to the support wheel 20, so that the support wheel 20 rotates on the support frame 10 about its own rotation axis, and the purpose of transmitting the force to the support frame 10 by the traction member 32 through the support wheel 20 is achieved. In this way, when the clothes drying rod encounters resistance, since one end of the traction member 32 is connected to the clothes drying rod and the other end is connected to the power unit 30, the traction member 32 will change from the original normal straight state to a loose state due to the loss of traction force at one end of the clothes drying rod. The support wheel 20 also loses the pressure of the traction member 32, so that the support frame 10 also loses the force from the traction member 32, and the support frame 10 also changes its position on the main machine shell (rotates about its own rotation axis). Finally, the support frame 10 triggers the travel switch also arranged on the main machine shell after the change of the position state, so as to achieve the purpose of triggering the resistance stop protection mechanism of the clothes drying machine.

[0051] Similarly, the support wheel 20, as a component directly cooperating with the support frame 10 and the traction member 32 respectively, can be made of wear-resistant and durable materials, such as nylon, rubber or metal, to ensure that it can withstand the friction and pressure generated between the related components during the lifting process of the clothes drying rod.

[0052] In order to achieve that the support wheel 20 is rotatably arranged on the support frame 10, the support frame 10 is integrally provided with a first rotating part 11 on opposite sides of the passing space 15, and the two first rotating parts 11 are arranged in a spaced manner. Correspondingly, the opposite ends of the support wheel 20 are integrally provided with a second rotating part 21, and the first rotating part 11 and the second rotating part 21 are rotatably connected.

[0053] By integrally forming the first rotating part 11 and the second rotating part 21 with the support frame 10 and the support wheel 20 respectively, the compactness of the support frame 10 and the support wheel 20 can be effectively improved. The connection between the first rotating part 11 and the second rotating part 21 does not penetrate the whole support wheel 20, and the support frame 10 and the support wheel 20 also avoid the need for additional connecting members or fasteners, reducing the number of parts and materials. In addition to reducing the processing and assembly cost and difficulty of the obstruction switch, it also improves the manufacturing efficiency.

[0054] In addition, the integrated forming process also reduces the error and failure rate in the assembly process, so that the assembly between the support wheel 20 and the support frame 10 has higher coaxiality, reduces the possibility of radial movement of the support wheel 20 during rotation relative to the support frame 10, reduces the shaking of the traction member 32 during movement, and makes the sensing accuracy of the obstruction switch higher, which also helps to improve the stability of the clothes drying machine.

[0055] And by spacing the two first rotating parts 11 on both sides of the support frame 10, and spacing the two second rotating parts 21 on both ends of the support wheel 20, compared with the way of passing the pin shaft through the support wheel 20 as a whole, the volume of the first rotating part 11 and the second rotating part 21 is smaller, so that the contact area between the first rotating part 11 and the second rotating part 21 is effectively inhibited, and when the contact area between the rotating part and the support wheel 20 or the support frame 10 is reduced, the frictional resistance between them will also be reduced accordingly, thereby facilitating the smooth rotation of the support wheel 20. When the support wheel 20 is subjected to the force from the traction member 32, the support wheel 20 can smoothly transmit power with the traction member 32, avoiding the situation that the support wheel 20 is stuck and stopped on the support frame 10, causing sliding friction with the traction member 32, and the wear of the support wheel 20 by the traction member 32 is alleviated, prolonging the service life of the equipment. At the same time, the noise generated during the rotation of the support wheel 20 and the support frame 10 is also inhibited, which is very beneficial for application scenarios that require quiet operation or high-precision control, allowing users to have a better experience during the use of the clothes drying machine.

[0056] In this scheme, the first rotating part 11 and the second rotating part 21 can adopt a variety of different structural forms on the basis of meeting the requirements of integral molding, such as shaft hole structure (usually composed of a cylindrical rod, both ends of which are fixed on the support frame 10 or the support wheel 20, and are rotatably connected through the shaft hole provided on the corresponding part), convex point structure (composed of a convex part provided on the support frame 10 or the support wheel 20, and rotatably connected through the groove provided on the corresponding part), etc.

[0057] Please continue to refer to the description accompanying Figures 2-5 The first support part and the second support part of the embodiment adopt the shaft hole structure to realize the rotatable connection between the support wheel 20 and the support frame 10, that is, one of the first rotating part 11 and the second rotating part 21 is provided as a rotating shaft, and the other is correspondingly provided as a shaft hole, and the rotating shaft is rotatably inserted into the shaft hole, so as to realize the support and guiding function of the rotating shaft around the circumferential direction through the hole wall of the shaft hole.

[0058] The rotating fit between the shaft and the shaft hole is simple and compact, perfectly suited to the requirements of integrated molding processes. For example, the shaft can be machined together with the corresponding parts through integrated molding processes such as injection molding, casting, and milling, while the shaft hole can be directly obtained by drilling on the corresponding parts or through integrated molding processes such as injection molding and casting, making its processing relatively easy. Furthermore, although the shaft and shaft hole in this embodiment do not penetrate the entire support wheel 20, they still retain a certain axial length. When the support wheel 20 and the support frame 10 are rotatably connected through the shaft and shaft hole, the support frame 10 can still provide sufficient support strength for the support wheel 20, allowing the support wheel 20 to maintain stable rotation on the support frame 10 and ensuring the mechanical performance of both.

[0059] Please continue to refer to the instruction manual appendix. Figure 5 In one embodiment, the first rotating part 11 is configured as a rotating shaft, and the second rotating part 21 is correspondingly configured as a shaft hole. Compared with the method of setting the rotating shaft on the support wheel 20 and setting the shaft hole on the support frame 10, this embodiment makes it easier to control the processing accuracy of both. The rotating shaft can be formed together with the support frame 10 through an integral molding process such as injection molding or compression molding. Setting the shaft hole on the support wheel 20 allows the shaft hole to be formed on the support wheel 20 through an extrusion process or subsequent drilling. This alternative setting method is superior in terms of both processing accuracy and process cost.

[0060] Furthermore, since the diameter of the rotating shaft is generally smaller than that of the support wheel 20, setting the shaft hole in the support wheel 20 eliminates concerns about shaft breakage during transportation or processing due to exposed shaft. Conversely, placing the rotating shaft within the support frame 10, with each shaft positioned relatively inside the frame, provides better protection, reducing the scrap rate of the obstacle detection switch during processing or transportation and extending its service life to some extent.

[0061] Following the above embodiment, in order to provide sufficient support force to the support wheel 20 when the shaft and the shaft hole are in the mating state, and to ensure that the contact area between the shaft and the shaft hole meets the requirements for reducing friction and minimizing noise, the length of the shaft in this embodiment is set to be no more than 20% of the length of the support wheel 20. In other words, although the shaft has a certain length on the support frame 10 or the support wheel 20, its specific length needs to be set according to the length of the support wheel 20, so as to minimize the contact area between the shaft and the shaft hole while meeting the support strength requirements of the support wheel 20.

[0062] For example, in the case of two rotating shafts arranged in the support frame 10, the two rotating shafts extend towards each other, and the distance between the end faces of the two rotating shafts towards each other is greater than 60% of the overall length of the support wheel 20.

[0063] It is worth mentioning that, through the above arrangement, in the case where one of the support frame 10 and the support wheel 20 is made of a material with a certain deformation ability, the disassembly of the support frame 10 and the support wheel 20 can also be facilitated. During the disassembly process of the support frame 10 and the support wheel 20, the operator can exert a force on one of the support frame 10 and the support wheel 20 to cause it to deform, so that the distance between the two rotating shafts or the two shaft holes is changed to avoid interference between the support frame 10 and the support wheel 20 due to the presence of the rotating shaft, so that the support wheel 20 can finally enter the threading space 15, and by releasing the support frame 10 or the support wheel 20, the two are reset and the support wheel 20 and the support frame 10 are rotatably connected through the rotating shaft and the shaft hole. The operation process is simple and fast, and no additional tools are needed throughout the operation, which can effectively improve the disassembly efficiency of the resistance switch.

[0064] As a specific structural form of the support frame 10, please refer to the accompanying Figures 2-5 The support frame 10 includes a connecting frame 12 and a connecting rod 13. In the specific application scenario of the clothes drying machine, the connecting frame 12 is used to be rotatably connected to the base 31 of the power unit 30 of the clothes drying machine, and in an embodiment, the extension direction of the support frame 10 is parallel to the rotation axis of the support frame 10 on the base 31 to increase the connection position that can be provided by the support frame 10, so that the threading space formed by the support frame 10 can be larger, and the setting of the traction member 32 is facilitated. The connecting rod 13 is arranged in two sections, and the two connecting rods 13 are respectively arranged at opposite ends of the connecting frame 12 to define the threading space 15, and the two first rotating parts 11 are arranged on opposite sides of the two connecting rods 13. This structure is also relatively simple, which is conducive to the processing and assembly of the support frame 10 under different process requirements. As can be seen from the above, the length of the connecting frame 12 determines the distance between the two connecting rods 13. The two connecting rods 13 form opposite sides of the support frame 10, which can provide support for the support wheel 20, and the first rotating parts 11 on the two connecting rods 13 provide mounting positions for the support wheel 20. The rotating axis of the support wheel 20 on the support frame 10 can be arranged in a form substantially parallel to the rotating axis of the support frame 10 on the base, so that the support wheel 20 does not deviate too much from the traction member 32 when the support wheel 20 moves with the support frame 10, reducing the risk of sliding friction between the support wheel 20 and the traction member 32, prolonging the service life of the support wheel 20 and the traction member 32, and also ensuring the quiet effect when the support wheel 20 is in linkage relationship with the traction member 32.

[0065] Further, the support frame 10 further comprises a support rod 14, two ends of the two connecting rods 13 are respectively connected to two ends of the connecting frame 12, and the other ends of the two connecting rods 13 are respectively connected to two ends of the support rod 14. In this way, the connecting frame 12, the connecting rod 13 and the support rod 14 jointly constitute a stable frame structure. On the basis that one end of the connecting rod 13 is connected to the connecting frame 12, the support rod 14 provides additional stability and support force for the entire support frame 10, so as to ensure that the support frame 10 can withstand the pressure applied by the traction member 32, reduce the possibility that the two connecting rods 13 are deformed in the normal use state and cause the support wheel 20 to be separated from the support frame 10, and improve the stability of the resistance switch.

[0066] In the specific application scenario of the resistance switch about the clothes drying machine based on the support frame 10 of the above frame structure, the traction member 32 can be arranged on the upper side or the lower side of the support wheel 20 according to the relative positional relationship between the resistance switch and the sensor on the base 31 of the power unit 30. Specifically, the support wheel 20, the two connecting rods 13 and the support rod 14 can jointly define a penetrating hole through which the traction member 32 can pass, and the penetrating hole is part of the above-mentioned penetrating space 15. In this embodiment, the traction member 32 is arranged on the lower side of the support wheel 20. When the clothes drying rod does not encounter resistance, the traction member 32 applies an upward resisting force to the support wheel 20, so that the support frame 10 can be in a relatively high position state with the support wheel 20. Correspondingly, when the clothes drying rod encounters resistance, the traction member 32 is relaxed, the support wheel 20 loses the upward resisting force from the traction member 32, and the support rod 14 moves downward and triggers the sensor. Alternatively, the support wheel 20, the two connecting rods 13 and the connecting frame 12 can jointly define a penetrating hole through which the traction member 32 can pass, and the penetrating hole is part of the above-mentioned penetrating space 15. In this way, in the actual application scenario of the clothes drying machine, the traction member 32 is arranged on the upper side of the support wheel 20. When the clothes drying rod does not encounter resistance, the traction member 32 applies a downward pressure to the support wheel 20. When the clothes drying rod encounters resistance, the support wheel 20 loses the pressure from the traction member 32, so that the support frame 10 can be flipped upward and trigger the sensor.

[0067] Through the above arrangement, the traction member 32 can be constrained in the corresponding penetrating hole by the support frame 10 and the support wheel 20 regardless of the state, so that the traction member 32 can still accurately recover to the state of abutting against the support wheel 20 after the clothes drying rod encounters resistance, and the clothes drying machine can stably provide the resistance stopping function.

[0068] As an optional implementation, the outer periphery of the support wheel 20 is evenly distributed with multiple anti-skid lines 22, each of which is arranged in the axial direction of the support wheel 20. In the specific application scenario of the clothes drying machine, the setting direction of the traction member 32 is optimally perpendicular to the anti-skid lines 22, but in general, it is difficult to achieve such precision. Therefore, as long as the anti-skid lines 22 are parallel to the rotation axis of the support wheel 20, the traction member 32 can be arranged at an angle with the anti-skid lines 22 when it abuts against one side of the support wheel 20, so that the anti-skid wheel can normally provide the anti-skid function (improve the friction between the support wheel 20 and the traction member 32).

[0069] By increasing the anti-skid lines 22 on the outer periphery of the support wheel 20, the surface roughness of the support wheel 20 can be improved, the friction between the traction member 32 and the support wheel 20 can be significantly improved, the friction between the support wheel 20 and the steel wire rope can be significantly improved, and the firm contact between the support wheel 20 and the steel wire rope can be ensured. The possibility of sliding friction between them under load or dynamic conditions is reduced, which helps to reduce the wear between the support wheel 20 and the steel wire rope, which not only prolongs the service life of the two, but also reduces the maintenance cost and replacement frequency.

[0070] It is also worth noting that by reducing the sliding friction between the support wheel 20 and the traction member 32, the noise generated during transmission can be effectively reduced, and the user's experience can be improved.

[0071] Based on any of the above embodiments, the support frame 10 is made of plastic material, so that the support frame 10 has a certain plastic deformation ability. In the above embodiment in which the support frame 10 includes the connecting frame 12 and the two connecting rods 13, for example, during the assembly of the support frame 10 and the support wheel 20, the operator can apply a force to the two connecting rods 13 to make them move away from each other, so that the distance between them gradually increases to a state where the support wheel 20 can be placed between the two first rotating parts 11. Then, the two connecting rods 13 are released, and the connecting rods 13 are reset at the same time, realizing the cooperation of the first rotating part 11 and the second rotating part 21. During the disassembly of the support wheel 20 and the support frame 10, the operator can also apply a force to the two connecting rods 13 to make them move away from each other, so that the first rotating part 11 on the two connecting rods 13 is respectively located on the two ends of the second rotating part 21 of the support wheel 20. Then, the support wheel 20 can be removed from the support frame 10, realizing the convenient disassembly and assembly of the support wheel 20 and the support frame 10.

[0072] On the basis, the support wheel 20 can be made of high-strength materials such as metal, so as to ensure that it can be stably supported on the support frame 10 without excessive deformation when subjected to the pressure applied by the traction member 32, and can prolong the service life of the support wheel 20, avoiding the rapid wear of the support wheel 20 under the reciprocating motion of the traction member 32.

[0073] The utility model provides a kind of clothes airing machine, as shown in it, Figures 6-8 As shown, the clothes airing machine provided with resistance switch in any of the above embodiments, mainly also includes main machine shell, main machine shell is as the support base of clothes airing machine, its inside can form enough space to provide relevant parts accommodation, and on this basis, power unit 30 is also provided in main machine shell, and clothes airing pole is provided in the lower portion of main machine shell and is in transmission connection with power unit 30, and power unit 30 is connected to clothes airing pole by traction member 32 (such as steel wire rope, transmission belt etc.).

[0074] In an embodiment, power unit 30 can be set as motor, and power unit 30 drives the lifting movement of clothes airing pole by the power supply. When the user needs to lift or lower clothes airing pole, only needs to send corresponding instruction by switch or remote controller, and motor will start and realize lifting operation according to preset speed and distance.

[0075] Clothes airing pole can provide corresponding hanging position for clothes needing to be aired under the lower portion of main machine shell, so as to determine the airing area that clothes airing machine can provide according to the specific structure design of clothes airing pole.

[0076] The resistance switch is rotatably arranged on the base 31 by the support frame 10, and the traction member 32 passes through the through space 15 and abuts against the support wheel 20. On this basis, the clothes airing machine further comprises a trigger switch 40, which is one of sensors. The trigger switch 40 is arranged on the base 31 and located on the movement path of the support frame 10, so that the support frame 10 can cooperate with the trigger switch 40 at a certain position during the rotation relative to the base 31, and trigger the trigger switch 40.

[0077] Further, the support frame 10 and the base 31 are further provided with an elastic component 50, which can be but not limited to a torsion spring, a tension spring, a compression spring, etc. As shown in Figure 7 When the traction member 32 abuts against the support frame 10 (the clothes airing pole does not meet resistance), the support frame 10 approaches the trigger switch 40 and triggers the trigger switch 40, and the elastic component 50 is used to continuously apply an elastic force to the support frame 10 to separate the support frame 10 from the trigger switch 40. As shown in Figure 8In the case that the clothes drying rod is blocked and the traction member 32 is relaxed, the support frame 10 loses the constraint of the traction member 32, and is separated from the trigger switch 40 under the action of the elastic member 50, so that the state of the trigger switch 40 is changed, thereby enabling the clothes drying machine to start the blocking stop function. In another embodiment, in the case that the traction member 32 abuts against the support frame 10, the support frame 10 is separated from the trigger switch 40, and the elastic member 50 is used to continuously apply an elastic force to the support frame 10 to make it close to the trigger switch 40 and trigger the trigger switch 40. In the case that the clothes drying rod is blocked and the traction member 32 is relaxed, the support frame 10 loses the constraint of the traction member 32, and is separated from the trigger switch 40 under the action of the elastic member 50, so that the state of the trigger switch 40 is changed, thereby enabling the clothes drying machine to start the blocking stop function.

[0078] In summary, the clothes drying machine of the present embodiment can reduce the use of material components, make the overall structure more compact and simple, and reduce the process and assembly cost of the clothes drying machine. Most importantly, the friction between the support frame 10 and the support wheel 20 in the blocking switch is smaller than that in the blocking switch of the traditional clothes drying machine, so that the support wheel 20 can rotate more smoothly during the operation of the clothes drying machine, the linkage between the support wheel 20 and the traction member 32 can be maintained, the noise generated by the blocking switch is relatively smaller, and the service life is longer.

[0079] In the description herein, it should be understood that the terms "upper", "lower", "left", "right", and the like orientation or position relationship are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0080] 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 conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.

[0081] In addition, it should be understood that although the present specification is described in terms of embodiments, each embodiment does not necessarily contain 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 can be understood by those skilled in the art.

[0082] The technical principles of the present application are described above in combination with specific embodiments. These descriptions are only for explaining the principles of the present application, and cannot be interpreted as limiting the protection scope of the present application in any way. Based on the explanations herein, other specific embodiments of the present application can be conceived by those skilled in the art without creative efforts, and these embodiments will all fall within the protection scope of the present application.

Claims

1. A bump switch characterized in that, The support frame is provided with a through space, and first rotating parts are integrally arranged on opposite sides of the through space. The first rotating part and the second rotating part are arranged as a rotating shaft and a shaft hole matched with the rotating shaft. The first rotating part is arranged as a rotating shaft, and the second rotating part is arranged as a shaft hole.

2. The choke switch of claim 1, wherein, The length of the rotating shaft is not more than 20% of the length of the support wheel.

3. The choke switch of claim 2, wherein, The support frame comprises a connecting frame and connecting rods.

4. The choke switch of claim 2, wherein, The connecting rods are arranged as two sections and are arranged at opposite ends of the connecting frame to define the through space.

5. A choke switch according to any one of claims 1-4, characterized in that The support frame further comprises support rods, one end of each of the connecting rods is connected to the connecting frame, and the other end of each of the connecting rods is connected to the support rods. The support wheel, the connecting rods and the support rods form a through hole for the traction member to pass through. The outer periphery of the support wheel is provided with a plurality of anti-skid lines, and each anti-skid line is arranged in the axial direction of the support wheel.

6. The choke switch of claim 5, wherein, The support frame is made of plastic. The support frame is rotatably arranged on the base, the traction member passes through the through space and abuts against the support wheel, and the trigger switch is arranged on the base and located on the movement path of the support frame.

7. The choke switch of claim 1, wherein, The support frame and the base are further provided with elastic members.

8. The choke switch of claim 1, wherein, When the traction member abuts against the support frame, the support frame approaches the trigger switch and triggers the trigger switch, and the elastic members are used to continuously apply elastic force to the support frame to separate the support frame from the trigger switch; or when the traction member abuts against the support frame, the support frame separates from the trigger switch, and the elastic members are used to continuously apply elastic force to the support frame to approach the trigger switch and trigger the trigger switch.

9. A clothes drying machine characterised in that, ​ ​ ​ ​ ​ 10. The clothes drying machine according to claim 9, characterized in that, ​ ​

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