Clothes airing rod limiting mechanism and clothes airing machine

Abstract

The utility model discloses a clothesline pole limit mechanism and clothesline machine relates to household electrical appliance technical field, the clothesline pole limit mechanism includes mounting box and limit switch, the mounting box is provided with the accomodating chamber that is used for accomodating the clothesline pole of clothesline machine, and the mounting box is provided with the motor subassembly of clothesline machine and the mounting position of steering wheel, and the limit switch is provided with the motor subassembly of clothesline machine and the mounting position of steering wheel. The number of the limiting switches is at least two, the limiting switches are arranged at the two opposite ends of the motor assembly at intervals in the length direction of the containing cavity, and the limiting switches are located between the motor assembly and the steering wheel of the clothes airing machine and used for detecting whether an airing rod of the clothes airing machine ascends to the stroke upper limit position or not. The limiting switches are arranged between the motor assembly and the steering wheel, the distance between the limiting switches is restrained, the distance between the positions, used for being detected by the limiting switches, of the airing rod is correspondingly changed, the timeliness of triggering the limiting switches after the airing rod is lifted in place is improved, and the risk that related parts such as the airing rod are damaged is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a clothes-drying rod limiting mechanism and a clothes-drying machine. Background Art

[0002] An electric clothes dryer is an intelligent household appliance that generates driving force through an electric motor. Clothes dryers are widely used in daily life. Generally, clothes dryers can carry fabric items such as clothes, quilts, and daily clothes, thus providing users with a relatively automated and intelligent fabric drying function.

[0003] Electric clothes dryers typically use a traction rope to pull the clothesline rod vertically relative to the main unit, and determine whether the rod is fully raised by detecting the relative position of the two ends of the rod with respect to the main unit. However, due to the generally long length of clothesline rods, as well as variations in the length of the traction ropes, errors in component assembly, and component deformation, the clothesline rod may tilt relative to the main unit. This can result in only one end of the clothesline being fully raised and detected during the lifting and storage process. In this case, the electric clothes dryer is still in a state of continuously driving the clothesline rod upward, which can eventually lead to damage to the electric clothes dryer, shortening the product's service life and increasing the difficulty of subsequent repairs. Utility Model Content

[0004] The purpose of the embodiments of the present utility model is to provide a clothes-drying rod limiting mechanism and a clothes-drying machine, which can solve the above-mentioned problems existing in the prior art.

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

[0006] In a first aspect, a clothes-drying rod limiting mechanism is provided, comprising:

[0007] The mounting box is provided with a receiving cavity for accommodating the clothes drying rod of the clothes drying machine and provides a mounting position for the motor assembly and the steering wheel of the clothes drying machine;

[0008] There are at least two limit switches, and at least two limit switches are arranged at opposite ends of the motor assembly of the clothes dryer along the length direction of the accommodating cavity. The limit switch is located between the motor assembly and the steering wheel of the clothes dryer, and is used to detect whether the drying rod of the clothes dryer has risen to the upper limit position of the stroke.

[0009] As an optional implementation, a support frame is further provided between the limit switch and the installation box, the support frame is fixedly installed on the installation box, and the limit switch is provided on the support frame.

[0010] As an optional embodiment, the support frame includes:

[0011] A base is provided with a mounting portion, and the base is used to be mounted on the mounting box through the mounting portion;

[0012] A fixing seat is arranged on the base, and a first fixing portion staggered from the mounting portion is further provided on the fixing seat, and the limit switch is mounted on the fixing seat through the first fixing portion.

[0013] As an optional implementation, the first fixing portion includes:

[0014] A positioning column protruding from the fixing seat;

[0015] Limiting buckles, there are at least two of the limiting buckles, at least two of the limiting buckles are spaced apart and arranged on opposite sides of the positioning column and fixed to the fixing seat;

[0016] The limit switch is provided with a positioning hole adapted to the positioning column, the limit switch is positioned and matched with the positioning column through the positioning hole, and the limit switch is connected to the limit buckle by a buckle.

[0017] As an optional embodiment, the support frame further includes:

[0018] A multifunctional mounting seat is arranged on the fixed seat, and the multifunctional mounting seat is arranged at an angle to the fixed seat. A second fixing part is also provided on the multifunctional mounting seat, and the first fixing part and the second fixing part are respectively arranged on the inner side of the fixed seat and the multifunctional mounting seat.

[0019] As an optional implementation, it also includes:

[0020] a protective shell, disposed on the installation box and cooperating with the installation box to form an installation cavity, the installation cavity being used to provide an installation space for the motor assembly of the clothes drying machine, the installation cavity being in communication with the receiving cavity;

[0021] The limit switch is arranged in the installation cavity.

[0022] As an optional embodiment, a support frame is further provided between the limit switch and the installation box, the support frame is fixedly installed on the installation box, and the limit switch is provided on the support frame; and / or

[0023] A support frame is further provided between the limit switch and the protective shell. The support frame is fixedly mounted on the protective shell, and the limit switch is provided on the support frame.

[0024] As an optional embodiment, the support frame includes:

[0025] A base, provided with a mounting portion, wherein the base is used to be mounted on the mounting box and / or the protective shell through the mounting portion;

[0026] A fixing seat is arranged on the base, and a first fixing portion staggered from the mounting portion is further provided on the fixing seat, and the limit switch is mounted on the fixing seat through the first fixing portion.

[0027] As an optional embodiment, the base is arranged between the installation box and the protective shell, and a wire groove is provided on a side of the base close to the installation box, and the wire groove is connected to the installation cavity and the outside of the installation cavity;

[0028] A space for the wires to pass through is formed between the wire groove and the installation cavity.

[0029] As an optional embodiment, a cavity opening communicating with the receiving cavity is opened on one side of the installation box, and the cavity opening is used for allowing the drying rod of the clothes drying machine to enter and exit the receiving cavity;

[0030] A support portion is provided on a side of the installation box facing away from the cavity opening, and the protective shell and the limit switch are both installed on the support portion.

[0031] As an optional embodiment, it is characterized in that a convex portion is further provided along the length direction of the installation box on a side away from the cavity opening, the convex portion is located on one side of the support portion, and an opening communicating with the receiving cavity is formed on a side of the convex portion close to the support portion;

[0032] The detection end of the limit switch detects the position of the clothes drying rod of the clothes drying machine in the receiving cavity through the opening.

[0033] As an optional implementation, the ratio of the length of the installation box to the distance between any two adjacent limit switches is 1.5:1-3:1.

[0034] In a second aspect, a clothes drying machine is provided, comprising:

[0035] In the clothes-drying rod limiting mechanism of the first aspect, an electrically connected control module and a motor assembly are provided in the mounting cavity;

[0036] The drying rod is connected to the motor assembly via a traction rope.

[0037] The beneficial effects of the present invention are as follows: the clothes drying rod limit mechanism sets the limit switch between the motor assembly and the steering wheel of the clothes drying machine to form corresponding constraints on the spacing between the limit switches, thereby shortening the detection spacing of the limit switches. The spacing between the positions of the clothes drying rods for detection by the limit switches also changes accordingly, improving the timeliness of triggering the limit switches after the clothes drying rods are raised into position, reducing the risk of damage to the clothes drying rods and other related components, and preventing the limit switches from being damaged by continuous compression. While effectively extending the service life of the clothes drying machine, it also reduces the difficulty of subsequent maintenance by better protecting the clothes drying rods and other components. At the same time, due to the shortened spacing between the limit switches, the signal reception error between the limit switches and the control module is also reduced accordingly, thereby improving the accuracy of the clothes drying rod position detection and making the clothes drying rods more flat after being raised into position.

[0038] The installation position of the limit switch is freed from the constraints of the steering wheel position in traditional clothes drying machines, freeing the installation position of the limit switch from the length of the installation box, and unifying the wiring length between the limit switch and related module components, thereby improving the degree of standardization between the limit switch and related module components and effectively controlling product costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0040] Figure 1 This is a structural diagram of the clothes drying machine according to an embodiment of the present utility model (protective shell separated);

[0041] Figure 2 for Figure 1 A magnified view of part A;

[0042] Figure 3 for Figure 1 Magnified view of part B;

[0043] Figure 4 This is a cross-sectional diagram of the mounting shell and the protective shell in the embodiment of the present utility model;

[0044] Figure 5 This is one of the schematic diagrams of the support frame structure described in the embodiment of the utility model;

[0045] Figure 6 This is the second schematic diagram of the support frame structure described in the embodiment of the present utility model.

[0046] In the figure: 10, installation box; 11, receiving cavity; 111, cavity mouth; 12, supporting part; 13, convex part; 131, opening; 20, protective shell; 21, installation cavity; 22, third installation hole; 30, limit switch; 31, detection end; 40, support frame; 41, base; 411, second installation hole; 412, wire groove; 42, fixing seat; 421, first fixing part; 4211, positioning column; 4212, limit buckle; 43, multi-functional mounting seat; 431, second fixing part; 50, drying rod; 60, control module; 70, motor assembly; 80, traction rope. DETAILED DESCRIPTION

[0047] To make the technical problems solved, the technical solutions adopted, and the technical effects achieved by the present invention more clearly understood, the technical solutions of the embodiments of the present invention are described in further detail below. Obviously, the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by those skilled in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0048] In the description of this utility model, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0049] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0050] An electric clothes dryer is an intelligent household appliance that generates driving force through an electric motor. Clothes dryers are widely used in daily life. Generally, clothes dryers can carry fabric items such as clothes, quilts, and daily clothes, thus providing users with a relatively automated and intelligent fabric drying function.

[0051] In related technologies, electric clothes drying machines are mainly composed of the following key parts:

[0052] The power system, as the core component of the electric clothes drying machine, is mainly responsible for providing the power required for lifting, rotating and other actions. The power system transmits power to other components through the transmission mechanism to realize the automatic operation of the clothes drying rod;

[0053] The transmission mechanism is responsible for converting the power of the power system into linear or rotational motion of the clothesline. It may include transmission elements such as gears, belts, and chains. In the current relatively common solution, a winding wheel is often used as the transmission mechanism to adapt to the technical solution of using a traction rope as a traction component to ensure the accuracy and stability of power transmission;

[0054] The traction component, as the key component connecting the power system and the clothes drying rod, is responsible for converting the power of the power system into the movement of the clothes drying rod. The traction component is usually made of strong and durable materials (such as a traction rope) to withstand the weight of the clothes and the stress caused by frequent movement.

[0055] The clothes drying rod is a component for hanging clothes. It is usually composed of at least one horizontal rod. The clothes drying rod can move with the pulling component to facilitate users to adjust the drying position.

[0056] The installation box or base is used to provide installation space for the above-mentioned power system, transmission mechanism, control system, etc. to form the main body part of the clothes drying machine, so as to ensure the stable installation and aesthetics of the clothes drying machine.

[0057] Of course, in addition to the above parts, the clothes drying machine can also be equipped with a control system (used to control the various functions of the clothes drying machine, such as lifting, lighting, sterilization, etc.), an intelligent sensing system (such as human body sensing, weight sensing, etc., to automatically detect the user's operating intentions or changes in the weight of clothes, and adjust the operating status of the clothes drying machine accordingly).

[0058] As can be seen from the background art, when an electric clothes dryer uses a power system to drive the rod to move (for example, raising and lowering), the relative positions of the rod's two ends and the main unit are typically detected by limit switches. This determines whether the rod is fully raised based on whether the limit switches are triggered. However, due to the generally long rods, variations in the length of the traction ropes, errors in the assembly relationships between components, and deformation of components over time, the rod may tilt relative to the main unit. This can result in only one end of the rod being fully raised and detected during the lifting and storage process. In this case, because the rod cannot be fully detected, the power system continues to drive the rod, causing interference between the rod and the main unit, and the traction rope to be incorrectly tightened, ultimately damaging the electric clothes dryer. This not only shortens the product's service life but also increases the difficulty of subsequent repairs.

[0059] In view of this, the present embodiment provides a clothes rod limiting mechanism, which can be applied to a clothes drying machine. The clothes rod limiting mechanism shortens the spacing of the limit switches 30 to improve the timeliness of triggering the shutdown after the clothes drying rod 50 is lifted into place, thereby solving a series of problems of the clothes drying machine such as decreased detection accuracy and higher risk of damage when the clothes drying rod 50 is tilted or offset.

[0060] Please refer to the attached Figures 1-4 The clothes drying rod limiting mechanism includes an installation box 10, which serves as a supporting base for the device and the application scenario of the clothes drying machine. It is generally used to provide an installation position for the control module 60, motor assembly 70 and other module components of the clothes drying machine. It is also provided with a receiving cavity 11 for accommodating the clothes drying rod 50 of the clothes drying machine.

[0061] In one embodiment, the installation box 10 can be fixed to the ceiling by pre-embedded or external means, and the cavity opening 111 of the receiving cavity 11 is opened on the lower side of the installation box 10, so that the drying rod 50 of the clothes drying machine can enter and exit the receiving cavity 11 through the cavity opening 111 of the receiving cavity 11 during the lifting process, so that the drying rod 50 can provide the drying function in the lowered state and the storage function in the raised state.

[0062] For example, in an embodiment where the installation box 10 is pre-buried in a slot preset in the ceiling, the drying rod 50 can enter the receiving cavity 11 through the cavity opening 111 when not in use, so that the drying rod 50 can be received by the receiving cavity 11. In this state, the drying rod 50 and the installation box 10 will not protrude from the surface of the ceiling, achieving a "hidden" visual effect, thereby improving the coordination and unity between the clothes drying machine and the drying area when not in use, and enhancing the overall aesthetics of the home.

[0063] Of course, as mentioned above, the installation box 10 is not limited to being pre-buried in the ceiling. It can also be installed on the ceiling in a manner protruding from the ceiling surface. Moreover, in an embodiment, the cavity opening 111 of the receiving cavity 11 is not limited to being opened below the installation box 10. The cavity opening 111 of the receiving cavity 11 can be opened on any side of the installation box 10 according to the specific action form requirements of the drying rod 50 in the clothes drying machine, so that the drying rod 50 can enter and exit the receiving cavity 11 through the groove during the movement relative to the installation box 10, thereby achieving the purpose of storage and drying.

[0064] It needs to be explained that, in this embodiment, the accommodating cavity 11 is not only represented as a hollow part formed in the installation box 10, but can also be a space formed on any side of the installation box 10. That is to say, when the drying rod 50 is in a storage state close to the installation box 10, the drying rod 50 is not necessarily stored in the installation box 10. As long as the specific position of the accommodating cavity 11 is defined and the drying rod 50 is in the storage state, it is sufficient to ensure that the drying rod 50 is located in the space defined by the accommodating cavity 11.

[0065] In addition, the side of the mounting box 10 facing away from the receiving chamber 11 can also provide corresponding mounting locations for the motor assembly 70 and the steering wheel of the clothes drying machine. Thus, in the actual application scenario of the clothes drying machine, the motor assembly 70 and the steering wheels are both mounted on the mounting box 10. The main function of the motor assembly 70 is to connect to the drying rod 50 via the traction rope 80 and to drive the drying rod 50 to move up and down by winding and unwinding the traction rope 80. The steering wheels are arranged at intervals along the length of the mounting box 10. Generally, the steering wheels are respectively arranged on both sides of the motor assembly 70 in the length direction of the mounting box 10 to cooperate with the traction rope 80, so that the arrangement direction of the two ends of the traction rope 80 can be arranged at an angle under the support of the steering wheels, thereby meeting the connection between the motor assembly 70 and the drying rod 50.

[0066] It should be understood that the ceiling described in this embodiment is not limited to the structural layer on the top surface of the building interior, and the ceiling can also be defined as any supporting entity, for example, a bracket that can be used to provide a ceiling installation for a clothes drying machine.

[0067] In addition, the installation box 10 can also be made of, but not limited to, metal materials such as aluminum alloy, or other hard materials such as plastic to ensure its durability and serve as the supporting base of the clothesline limiting mechanism and even the clothes drying machine.

[0068] Based on the above structure, the clothes drying rod limit mechanism also includes a limit switch 30, which is used to detect the position of the object. In the actual application scenario of the clothes drying machine, through the connection between the limit switch 30 and the control system of the clothes drying machine, the position control and safety protection elements of the corresponding object (such as the above-mentioned drying rod 50) are realized.

[0069] In this embodiment, there are at least two limit switches 30, and each limit switch 30 is arranged at both ends of the motor assembly 70 of the clothes dryer along the length direction of the receiving cavity 11. In addition, in the actual application scenario of the clothes dryer, the limit switch 30 is located between the motor assembly 70 and the steering wheel. The detection end 31 of the limit switch 30 for detecting the position of the object extends from the outside of the installation box 10 to the receiving cavity 11, and is used to detect whether the drying rod 50 of the clothes dryer has risen to the upper limit position of the stroke and is received by the receiving cavity 11.

[0070] Of course, it should be explained that this embodiment can be set according to the type of limit switch 30 so that it extends into the receiving cavity 11 through a contact detection end 31 (such as changing the state of the control circuit through the contact between a mechanical contact and a block), and the limit switch 30 can also detect whether the drying rod 50 of the clothes drying machine has risen to the upper limit position of the stroke in the receiving cavity 11 through a non-contact detection end 31 (such as a proximity sensor, which uses electromagnetic, photoelectric, ultrasonic and other principles to detect the position of the object without physical contact).

[0071] In the embodiment in which the drying rod 50 of the above-mentioned clothes drying machine moves in the vertical direction toward and away from the installation box 10 in the lifting direction under the control of the power system, the limit switch 30 is used to detect the height position of the drying rod 50. After the drying rod 50 is lifted and enters the receiving chamber 11 through the cavity opening 111, the limit switch 30 can detect the position of the drying rod 50 close to the bottom of the receiving chamber 11 (the side of the receiving chamber 11 away from its cavity opening 111). By detecting whether it has risen to the upper limit of the stroke, when the limit switch 30 is connected to the control system of the clothes drying machine, the control system can send a corresponding control signal to the power system based on the detection status of the limit switch 30 or the collected position information, so that the drying rod 50 continues to move if it has not reached the preset position in the receiving chamber 11, and stops moving when the drying rod 50 reaches the preset position in the receiving chamber 11, so as to avoid the drying rod 50 being controlled by the power system to continue to move after being lifted into place, causing interference between the drying rod 50 and the installation box 10 and causing damage.

[0072] It should be noted that the limit switch 30 is also called a travel switch. When the object being measured moves to a preset position, the mechanical part will trigger the relevant structure inside the switch to make it approach or separate, resulting in the closing or opening of the contacts, thereby achieving the purpose of detecting the position and controlling the circuit.

[0073] In this embodiment, the limit switches 30 are spaced along the length of the clothes drying machine between the motor assembly 70 and the steering wheel, thereby detecting the positions of at least two portions of the drying rod 50 within the receiving chamber 11. The spacing between the at least two detected positions of the drying rod 50 is smaller than the spacing between the steering wheels at both ends of the mounting box 10. The two limit switches 30 effectively reduce the probability that the positions of the two ends of the drying rod 50 cannot be detected quickly due to a horizontal position deviation of the drying rod 50 relative to the mounting box 10. For example, if there are two limit switches 30, the control system will only send a corresponding control signal to the power system when the drying rod 50 moves to the position corresponding to the two limit switches 30, or is close enough to the corresponding limit switch 30 to be detected by the limit switch 30.

[0074] For example, the drying rod 50 is tilted at a constant angle relative to the mounting box 10. By shortening the distance between the two limit switches 30, the drying rod 50 can trigger the other limit switch 30 at a shorter distance after triggering one limit switch 30. In contrast, in a conventional arrangement, where the positions of the opposite ends of the drying rod are detected, after one end of the drying rod is raised and detected, the other end of the drying rod is still a relatively long distance from the detection area. This results in the rod being unable to rise much further even if the power system continues to drive the rod upward because one end has already been raised to its full height, ultimately leading to damage to the traction components or even the power system.

[0075] At the same time, due to the shortening of the distance between the limit switches 30, the signal reception error between the limit switch 30 and the control module 60 is also reduced accordingly, thereby improving the position detection accuracy of the drying rod 50 and making the drying rod 50 smoother after being lifted into place.

[0076] Please continue to refer to the attached Figures 1-4 The clothes-drying rod limiting mechanism also includes a protective shell 20, which is arranged in the installation box 10. Specifically, the interior of the protective shell 20 is roughly hollow structure, so as to provide corresponding installation space for core components such as the power system (the motor assembly 70 described later in this embodiment) and the control system (the control module 60 described later in this embodiment) in the actual application scenario of the clothes-drying rod limiting mechanism in the clothes-drying machine, and play a certain protective role for related components.

[0077] For example, in actual applications of a clothes drying machine, the protective housing 20 can effectively isolate adverse factors such as dust, moisture, and insects from the clothes drying machine's external environment (including but not limited to sources such as the air and ceiling), preventing them from directly contacting the internal components and mechanical structures, thereby extending the service life of the clothes drying machine. Secondly, in actual applications, the clothes drying rod limiter (clothes drying machine) may be subject to accidental collisions or pressure from objects such as clothing and the drying rod 50. The protective housing 20 can absorb some of the impact force, thereby protecting the internal modules and components from damage.

[0078] Since the interior of the protective shell 20 needs to provide corresponding installation space for related module components, based on the protective shell 20 being set on the installation box 10, the protective shell 20 and the installation box 10 cooperate to form an installation cavity 21, and the installation cavity 21 is located inside the protective shell 20. In addition, the installation cavity 21 needs to be set to be connected to the receiving cavity 11, so that the power system, control system, etc. located in the installation cavity 21 can form a connection relationship with the drying rod 50 located outside the installation cavity 21 (specifically, in the receiving cavity 11 in a certain position state).

[0079] It should be understood that the installation cavity 21 and the receiving cavity 11 extend in the same direction, that is, based on the need for the receiving cavity 11 to match the length of the drying rod 50, the receiving cavity 11 and the installation cavity 21 need to extend along the length direction of the clothes drying machine. However, since the length dimensions of components such as the power system and the control system are smaller than the length dimensions of the drying rod 50, the length dimension of the installation cavity 21 (protective shell 20) is smaller than the length dimension of the receiving cavity 11 (installation box 10).

[0080] In addition, in one embodiment, in order to make the transmission distance between the power system and the opposite ends of the drying rod 50 and the size of the traction components located between the power system and the two ends of the drying rod 50 consistent or tend to be consistent, so as to ensure the stable transmission of the drying rod 50, the protective shell 20 should be set in the middle of the installation box 10.

[0081] The above-mentioned limit switch 30 is installed in the installation position provided by the installation box 10, and the limit switch 30 is at least partially located in the installation cavity 21. Because the installation cavity 21 is connected to the receiving cavity 11, the detection end 31 of the limit switch 30 for detecting the position of the object extends from the installation cavity 21 to the receiving cavity 11, and is used to detect the position of the drying rod 50 of the clothes drying machine in the receiving cavity 11.

[0082] In this embodiment, since the two limit switches 30 are both arranged in the protective shell, and as mentioned above, since the length of the protective shell is smaller than the length of the installation box 10, the distance between the two limit switches 30 is naturally smaller than the length of the drying rod 50. In addition, based on the protective shell 20 being arranged in the middle of the installation box 10, the two limit switches 30 can effectively reduce the probability that the two ends cannot be detected in place in a short time due to the horizontal position deviation of the drying rod 50 relative to the installation box 10.

[0083] In summary, by arranging the limit switch 30 in the installation cavity 21 formed by the protective shell 20, the distance between each limit switch 30 is constrained by the length of the protective shell 20, thereby shortening the detection distance of the limit switch 30, and the position spacing of the drying rod 50 for detection by the limit switch 30 is also changed accordingly, thereby improving the timeliness of triggering each limit switch 30 after the drying rod 50 is lifted into place, reducing the risk of damage to related components such as the drying rod 50, and effectively extending the service life of the clothes drying machine. At the same time, through better protection of components such as the drying rod 50, the difficulty of subsequent maintenance is also reduced.

[0084] In addition, setting the limit switch 30 in the installation cavity 21 can free the installation position of the limit switch 30 from the constraint of the length of the installation box 10, unify the wiring length between the limit switch 30 and the related module components, and form a fixed standard component between the limit switch 30, the control system and the power unit, thereby improving the degree of standardization between the limit switch 30 and the related module components and effectively controlling product costs.

[0085] Please continue to refer to the attached Figures 1-4 The limit switch 30 is connected to the mounting box 10 and / or the limit switch 30 is connected to the protective shell 20 via a support frame 40. The support frame 40 serves as a supporting base for the limit switch 30 on the mounting box 10 and / or the protective shell 20, and the limit switch 30 is mounted on the support frame 40. When the limit switch 30 is mounted on the mounting box 10 via the support frame 40, the support frame 40 is fixed to the mounting box 10, while when the limit switch 30 is mounted on the protective shell 20 via the support frame 40, the support frame 40 is fixed to the protective shell 20. In addition, the support frame 40 can also be fixed to both the mounting box 10 and the protective shell 20 to improve the assembly stability of the support frame 40 in the clothes drying rod limit mechanism.

[0086] In this embodiment, the support frame 40 can provide additional structural support for the limit switch 30 between the mounting box 10 and the protective shell 20, so that the limit switch 30 can be firmly fixed in the main unit of the clothes dryer. At the same time, it also ensures the precise positioning of the limit switch 30, reduces the vibration generated by the drying rack during the lifting process, and does not cause the limit switch 30 to shift, thereby ensuring the limit switch 30's position detection accuracy for the drying rack and improving the safety and reliability of the clothes dryer.

[0087] It is also understandable that the design of using a support frame 40 to connect the limit switch 30 to the installation box 10 and / or the protective shell 20 also reduces the difficulty of overhauling and maintaining the limit switch 30. When the limit switch 30 needs to be replaced or overhauled, the operator can relatively easily disassemble the support frame 40 and then remove the limit switch 30 from the support frame 40. The operator does not need to overhaul it on the clothes drying machine. Compared with the method of directly fixing the limit switch 30 to the installation box 10 and / or the protective shell 20, there is no need to set up an additional assembly structure between the limit switch 30 and the installation box 10 and / or the protective shell 20, and the entire clothes drying machine does not need to be disassembled on a large scale during the disassembly process. Its overall structure is simpler and more compact, which also makes the processing and assembly of related components less difficult.

[0088] In addition, the design of the support frame 40 can be adjusted according to the specific model and installation environment of the clothes dryer, or the mounting structure that can adapt to different models of clothes dryers and types of limit switches 30 can be set on the support frame 40 to improve the adaptability of different limit switches 30 to the clothes dryer, making the design of the clothes dryer more diversified and able to meet the needs of different user groups.

[0089] In one embodiment, the number of the support brackets 40 may be determined according to the number of the limit switches 30 to maintain a compact assembly structure between the limit switches 30 and the mounting box 10 and / or the protective shell 20 .

[0090] For example, because the limit switch 30 needs to be connected to the clothes drying machine's control system, during the assembly process of the limit switch 30 in the clothes drying rod limit mechanism, the order in which the limit switch 30 is assembled between the mounting box 10 and the protective housing 20 should be determined based on the specific assembly method of the control system. For example, if the control system is installed in the mounting box 10, the support bracket 40 (on which the limit switch 30 is mounted) can be first positioned and installed on the mounting box 10 to facilitate connection between the limit switch 30 and the control system. If the control system is installed in the protective housing 20, the support bracket 40 (on which the limit switch 30 is mounted) can be first positioned and installed on the protective housing 20 to ensure that the two are in a relatively stable state and a short distance apart to complete a series of operations such as wiring.

[0091] Based on the above implementation, please continue to refer to the attached Figure 2-Figure 3 、 Figure 5-Figure 6 The support frame 40 structure includes a base 41 and a fixing seat 42. The base 41 serves as the foundation of the entire support frame 40 and is responsible for supporting and fixing the fixing seat 42, ensuring that the fixing seat 42 does not shake or shift relative to the mounting box 10 and the protective shell 20 due to external forces during the operation of the clothes drying rack. Specifically, the base 41 is provided with a mounting portion, and the base 41 is used to be installed on the mounting box 10 and / or the protective shell 20 through the mounting portion. The fixing seat 42 is a component provided on the base 41, which is used to position and support the limit switch 30, so as to ensure that under the precise positioning of the base 41, the mounting box 10, and the protective shell 20, the limit switch 30 can be accurately triggered by the drying rod 50 in the receiving chamber 11, so as to accurately detect the position of the drying rod 50. Specifically, the fixing seat 42 is provided with a first fixing portion 421 staggered from the mounting portion, and the limit switch 30 is mounted on the fixing seat 42 via the first fixing portion 421.

[0092] It should be understood that the base 41 and the fixing seat 42 can be manufactured by an integrated molding process or a split processing process. The integrated molding process refers to a molding process that completes the entire part (support frame 40) at one time, for example, through integrated injection molding, casting, sheet metal processing and other processes. After the molding process, no subsequent assembly or welding is required. This process can significantly improve production efficiency and product quality and reduce production costs. The split processing process is to mold the different parts of the product (base 41 and fixing seat 42) separately, and then combine them together through assembly and other methods (such as welding, buckling, screwing, bonding, etc.), which can meet the manufacturing needs of products with complex structures or special materials.

[0093] The above embodiment can better divide the different installation positions on the support seat by setting the support seat into two parts, a base 41 and a fixed seat 42, and staggering the first fixed part 421 with the installation part, thereby reducing the interference that may occur between the limit switch 30 and the support frame 40, and between the support frame 40 and the installation box 10 and / or the protective shell 20 during the assembly process, thereby reducing the difficulty of disassembly and assembly of the limit switch 30 in the clothes drying rod limit mechanism.

[0094] Based on the above embodiment in which the support frame 40, the installation box 10 and the protective shell 20 are all assembled, please refer to the attached Figure 3The support frame 40 is fixed by the end portion of the protective shell 20 and the installation box 10, and the end portion of the installation box 10 is provided with a first mounting hole (not shown), the mounting portion is provided with a second mounting hole 411, and the installation box 10 is provided with a third mounting hole 22. In the actual assembly state, the first mounting hole 411, the second mounting hole 22 and the third mounting hole 22 are connected to each other, so that the protective shell 20, the support frame 40 and the installation box 10 are arranged in a stacked manner. Specifically, the part of the support frame 40 provided with the second mounting hole 411 is arranged between the position where the first mounting hole is opened in the installation box 10 corresponding to the position where the third mounting hole 22 is opened in the protective shell 20, so that after the three are connected by the connecting piece, the connecting piece can be passed through the first mounting hole, the second mounting hole 411 and the third mounting hole 22, ensuring that the three are accurately positioned while pressing and fixing the support member between the installation box 10 and the protective shell 20, and also avoiding the mutual shaking and displacement between the protective shell 20, the support frame 40 and the installation box 10 in the stacking direction, thereby improving the assembly strength of the clothes drying rod limiting mechanism.

[0095] By assembling the components using the above-mentioned mounting holes and connectors, the positioning accuracy and connection reliability between components can be effectively improved while maintaining a simple structure. This effectively controls product costs in real time without affecting product quality.

[0096] It should be explained that the mounting hole and the connecting piece can specifically adopt a connection structure that is more commonly used in the current mechanical field. However, it should be noted that the connection structure should meet the above-mentioned requirements of simple structure and high reliability. Specifically, the mounting hole and the connecting piece can be connected in the following ways, but are not limited to:

[0097] Threaded connection: an internal thread is machined in at least one mounting hole (the first mounting hole, the second mounting hole 411, the third mounting hole 22), and a connecting member (such as a bolt, a screw, etc.) has an external thread that matches the internal thread. By rotating the connecting member, it is tightly coupled with the thread in the mounting hole, thereby achieving assembly of the mounting box 10, the support frame 40 and the protective shell 20;

[0098] Pin connection uses a pin as a connecting part. The diameter of the pin is slightly smaller than the diameter of each mounting hole. The pin is fixed in each mounting hole by interference fit or adding fasteners (such as locking washers), thereby realizing the assembly of the mounting box 10, the support frame 40 and the protective shell 20.

[0099] Continuing with the above-mentioned embodiment in which the support frame 40 includes a base 41 and a fixing base 42, please refer to the attached Figure 5-Figure 6The first fixing portion 421 includes a positioning post 4211 and a limiting buckle 4212. The positioning post 4211 is protruding from the surface of the fixing seat 42, and the fixing seat 42 is provided with a space for accommodating the limit switch 30 outside the position where the positioning post 4211 is protruding. The surface structure of the fixing seat 42 should be configured to match the surface structure of the limit switch 30, so that when the limit switch 30 forms a fixed mating relationship with the fixing seat 42 through the positioning post 4211, the limit switch 30 can be stably abutted against the surface of the fixing seat 42, further improving the assembly stability between the limit switch 30 and the fixing seat 42. In this embodiment, there are at least two limiting buckles 4212, and the at least two limiting buckles 4212 are spaced apart and arranged on opposite sides of the positioning post 4211 to specifically define the above-mentioned space for accommodating the limit switch 30.

[0100] Of course, in other embodiments, the limit buckle 4212 can also be set to only one, but it should be understood that in the solution where the limit buckle 4212 is set to only one, a limit structure (such as a limit plate) should be provided on the side opposite to the limit buckle 4212 to cooperate with the limit buckle 4212 to constrain the limit switch 30. However, this method will also increase the difficulty of disassembly and assembly of the limit switch 30. Obviously, this implementation is not the best solution for this embodiment.

[0101] Correspondingly, in order to allow the limit switch 30 to be stably installed on the fixing seat 42, the limit switch 30 is provided with a positioning hole adapted to the positioning column 4211. The limit switch 30 is positioned and matched with the positioning column 4211 through the positioning hole, and the limit switch 30 is connected to the limit buckle 4212 through its shell.

[0102] Through the above technical solution, the difficulty of disassembly and assembly of the limit switch 30 and the support frame 40 can be reduced on the basis of improving the assembly accuracy of the limit switch 30 on the support frame 40, so as to ensure the position detection accuracy of the drying rod 50 while facilitating the early assembly and later disassembly, replacement, inspection and maintenance of the limit switch 30.

[0103] For example, the disassembly and assembly direction between the housing of the limit switch 30 and the limit buckle 4212 is parallel to the insertion and removal direction of the positioning hole and the positioning column 4211. During the assembly process of the limit switch 30 and the support frame 40, the positioning column 4211 is gradually inserted into the positioning hole, so that the housing of the limit switch 30 and the fixing seat 42 form a preliminary positioning, ensuring that the two sides of the housing of the limit switch 30 correspond to the two limit buckles 4212 respectively. As the limit switch 30 moves closer to the positioning seat, the housing of the limit switch 30 will also gradually move closer to the fixing seat 42 and align with the limit buckle 4212. 212 snap fit, so that the limit switch 30 and the fixing seat 42 form a stable fit; in the process of disassembling the limit switch 30 from the support frame 40, the operator can use the shell of the limit switch 30 to act on the limit buckle 4212, so that the limit buckle 4212 is separated from the shell of the limit switch 30, forming a preliminary disengagement relationship between the limit switch 30 and the fixing seat 42, and in this process, the positioning column 4211 will also be gradually pulled out of the positioning hole, and finally when the limit switch 30 is completely separated from the first fixing part 421, the disassembly of the limit switch 30 is completed.

[0104] In one embodiment, please continue to refer to the attached Figure 3 、 Figure 5-Figure 6 In the actual application scenario of the clothes drying machine, since the clothes drying machine is connected to other devices (such as another clothes drying machine), the base 41 is arranged between the installation box 10 and the protective shell 20, so that the support frame 40 is pressed and fixed by the installation box 10 and the protective box through the base 41. A wire groove 412 is provided on the side of the base 41 close to the installation box 10. The wire groove 412 is connected to the installation cavity 21 and the outside of the installation cavity 21. Since the side of the base 41 where the wire groove 412 is provided is pressed against the installation box 10, the slot of the wire groove 412 away from the bottom of the slot will be closed by the installation box 10, and a space for the wires to pass through is formed between the wire groove 412 and the installation box 10.

[0105] In this way, when the clothes drying rack needs to be connected to other devices, the wires can extend from the installation cavity 21 to the outside of the protective shell 20 through the wire groove 412, and the wires can be pressed against the surface of the installation box 10 by the wire groove 412 to meet relevant safety certification requirements.

[0106] In this embodiment, on the basis of using the support frame 40 as the support frame 40 structure of the limit switch 30, the support frame 40 is used as a fixed structure for compressing the wire, thereby saving the additional fixed structure set up to meet the relevant safety certification requirements, improving the structural compactness and integrity of the clothesline limit mechanism, and reducing the production cost of the clothes drying machine product.

[0107] Please refer to the attached Figure 5-Figure 6The support frame 40 includes a multifunctional mounting base 43 on the basis of the base 41 and the fixed base 42. The multifunctional mounting base 43 is arranged on the fixed base 42 so as to be arranged on the base 41 through the fixed base 42. That is, the base 41 provides support for both the fixed base 42 and the multifunctional mounting base 43. The multifunctional mounting base 43 and the fixed base 42 are located at the same horizontal position and are arranged at an angle to the fixed base 42, so that the surfaces of the multifunctional mounting base 43 and the fixed base 42 that are close to each other (the inner side surface described in this embodiment) jointly define a space for installing the limit switch 30 and related electronic components. Specifically, the multifunctional mounting base 43 is further provided with a second fixing portion 431, and the first fixing portion 421 and the second fixing portion 431 are respectively provided on the inner side surfaces of the fixed base 42 and the multifunctional mounting base 43.

[0108] In this embodiment, the second fixing portion 431 can be configured to match the mounting structure of the electronic components associated with the clothes drying machine, so that different models of clothes drying machines equipped with different electronic components can be installed on the multifunctional mounting base 43 via the second fixing portion 431, thereby improving the versatility of the support frame 40 in the clothes drying rod limit mechanism and even clothes drying machine products. Furthermore, the first fixing portion 421 and the second fixing portion 431 are both arranged on the inner side surfaces of the fixing base 42 and the multifunctional mounting base 43. When the limit switch 30 and related electronic components are installed on the support frame 40, they can be accommodated in the space formed by the inner side surfaces of the fixing base 42 and the multifunctional mounting base 43, thereby improving the compactness of the structure and space utilization.

[0109] Based on any of the above implementations, please refer to the attached Figure 4 A cavity opening 111 communicating with the accommodating cavity 11 is opened on one side of the installation box 10 , and the cavity opening 111 is used for the drying rod 50 of the clothes drying machine to enter and exit the accommodating cavity 11 .

[0110] Furthermore, a support portion 12 is provided on the side of the installation box 10 facing away from the cavity opening 111, and the protective shell 20, the limit switch 30, and the power system, control system and other components mentioned in the application of the clothes drying machine are all installed on the support portion 12, and the protective shell 20 is provided on the support portion 12 to provide protection for the relevant structures.

[0111] By arranging the support portion 12 on the side of the installation box 10 away from the cavity opening 111 of the accommodating cavity, when the installation box 10 is installed on the ceiling and the cavity opening 111 is used (when the drying rack is raised and lowered vertically relative to the installation box 10), the protective shell 20, the limit switch 30 and other related structures can be installed between the installation box 10 and the ceiling. Even when the installation box 10 is embedded in a preset slot in the ceiling, the related components can also be embedded therein together, so as to be blocked by the installation box 10 from the user's bottom-up perspective, thereby improving the overall aesthetics of the clothes drying machine.

[0112] As a further technical solution, a convex portion 13 is provided along the length direction of the installation box 10 on the side away from the cavity 111. The convex portion 13 is located on one side of the support portion 12. Specifically, under the influence of the convex portion 13, the cross-sectional shape of the installation box 10 is roughly "convex" shaped to adapt to the cross-sectional shape of the drying rod 50 in a general clothes drying machine, thereby improving the stability of the drying rod 50 when it is stored in the receiving cavity 11 and making the overall structure of the clothes drying machine more beautiful.

[0113] At the same time, in addition to being able to match the structure of the drying rod 50 on the side close to the installation box 10, the protrusion 13 can also reserve the support portion 12 for the side of the installation box 10, so that the systems, modules, components, etc. related to the clothes drying machine can have sufficient installation positions, avoiding the related structure protruding excessively from the side of the installation box 10 away from the cavity 111, resulting in the need to reserve a deeper slot on the ceiling.

[0114] In this embodiment, an opening 131 connected to the receiving cavity 11 is provided on one side of the protrusion 13 close to the support portion 12. The detection end 31 of the limit switch 30 detects the position of the drying rod 50 of the clothes drying machine in the receiving cavity 11 through the opening 131. For example, when the limit switch 30 is a contact detection end 31, the spring piece serving as the detection end 31 can extend from the mounting cavity 21 into the receiving cavity 11 through the opening 131, so that when the drying rod 50 enters the receiving cavity 11 and the top enters the above-mentioned protrusion 13, it can push against the spring piece to trigger the limit switch 30.

[0115] Optionally, based on any of the above-mentioned embodiments, the ratio of the length dimension of the installation box 10 to the distance between any two adjacent limit switches 30 is 1.5:1-3:1, so as to ensure that the distance between the limit switches 30 is small enough in the installation box 10, and prevent the distance between the limit switches 30 on the installation box 10 from being too large due to the shortening of the length dimension of the installation box 10 in clothes drying machines of different sizes, thereby affecting the detection of the upper limit position of the drying height 50.

[0116] Please refer to the attached Figure 1This embodiment also provides a clothes drying machine, which, based on the clothes drying rod limiting mechanism provided by any of the above embodiments, also includes a drying rod 50, and an electrically connected control module 60 and a motor assembly 70 are provided in the installation cavity 21, and the motor assembly 70 is connected to the drying rod 50 through a traction rope 80.

[0117] In summary, the clothes drying machine can effectively improve the accuracy and sensitivity of detecting the height position of the drying rod 50 by adopting the clothes drying rod limiting mechanism described in this embodiment, so that even if the clothes drying rod 50 is tilted relative to the mounting box 10, it can still detect whether the clothes drying rod 50 has been lifted into place relatively promptly, thereby avoiding excessive interference between the clothes drying rod 50 and the mounting box 10, which may cause deformation of components and breakage of the traction rope 80, thereby ensuring that the clothes drying machine will not have major faults during use that affect the normal use of the user, extending the service life of the clothes drying machine, and controlling the difficulty of subsequent maintenance.

[0118] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other positions or relationships are used solely for ease of description and simplified operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0119] Throughout this specification, references to terms such as "one embodiment" and "example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example.

[0120] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0121] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and should not be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will be able to devise other specific implementations of the present invention without inventive effort, and such implementations will fall within the scope of protection of the present invention.

Claims

1. A clothes drying rod limiting mechanism, characterized in that: include: The mounting box is provided with a receiving cavity for accommodating the clothes drying rod of the clothes drying machine and provides a mounting position for the motor assembly and the steering wheel of the clothes drying machine; There are at least two limit switches, and at least two limit switches are arranged at opposite ends of the motor assembly of the clothes dryer along the length direction of the accommodating cavity. The limit switch is located between the motor assembly and the steering wheel of the clothes dryer, and is used to detect whether the drying rod of the clothes dryer has risen to the upper limit position of the stroke.

2. The clothes drying rod limiting mechanism according to claim 1, characterized in that: A support frame is further provided between the limit switch and the installation box. The support frame is fixedly installed on the installation box, and the limit switch is provided on the support frame.

3. The clothes drying rod limiting mechanism according to claim 2, characterized in that: The support frame comprises: A base is provided with a mounting portion, and the base is used to be mounted on the mounting box through the mounting portion; A fixing seat is arranged on the base, and a first fixing portion staggered from the mounting portion is further provided on the fixing seat, and the limit switch is mounted on the fixing seat through the first fixing portion.

4. The clothes drying rod limiting mechanism according to claim 3, characterized in that: The first fixing portion includes: A positioning column protruding from the fixing seat; Limiting buckles, there are at least two of the limiting buckles, at least two of the limiting buckles are spaced apart and arranged on opposite sides of the positioning column and fixed to the fixing seat; The limit switch is provided with a positioning hole adapted to the positioning column, the limit switch is positioned and matched with the positioning column through the positioning hole, and the limit switch is connected to the limit buckle by a buckle.

5. The clothes drying rod limiting mechanism according to claim 3, characterized in that: The support frame further comprises: A multifunctional mounting seat is arranged on the fixed seat, and the multifunctional mounting seat is arranged at an angle to the fixed seat. A second fixing part is also provided on the multifunctional mounting seat, and the first fixing part and the second fixing part are respectively arranged on the inner side of the fixed seat and the multifunctional mounting seat.

6. The clothes drying rod limiting mechanism according to claim 1, characterized in that: Also includes: a protective shell, disposed on the installation box and cooperating with the installation box to form an installation cavity, the installation cavity being used to provide an installation space for the motor assembly of the clothes drying machine, the installation cavity being in communication with the receiving cavity; The limit switch is arranged in the installation cavity.

7. The clothes-drying rod limiting mechanism according to claim 6, characterized in that: A support frame is further provided between the limit switch and the installation box, the support frame is fixedly mounted on the installation box, and the limit switch is provided on the support frame; and / or A support frame is further provided between the limit switch and the protective shell. The support frame is fixedly mounted on the protective shell, and the limit switch is provided on the support frame.

8. The clothes-drying rod limiting mechanism according to claim 7, characterized in that: The support frame comprises: A base, provided with a mounting portion, wherein the base is used to be mounted on the mounting box and / or the protective shell through the mounting portion; A fixing seat is arranged on the base, and a first fixing portion staggered from the mounting portion is further provided on the fixing seat, and the limit switch is mounted on the fixing seat through the first fixing portion.

9. The clothes-drying rod limiting mechanism according to claim 8, characterized in that: The base is arranged between the installation box and the protective shell, and a wire groove is provided on a side of the base close to the installation box, wherein the wire groove is connected to the installation cavity and the outside of the installation cavity; A space for the wires to pass through is formed between the wire groove and the installation cavity.

10. The clothes drying rod limiting mechanism according to any one of claims 6 to 9, characterized in that: A cavity opening communicating with the receiving cavity is opened on one side of the installation box, and the cavity opening is used for allowing the drying rod of the clothes drying machine to enter and exit the receiving cavity; A support portion is provided on a side of the installation box facing away from the cavity opening, and the protective shell and the limit switch are both installed on the support portion.

11. The clothes-drying rod limiting mechanism according to claim 10, characterized in that: The installation box is further provided with a convex portion arranged along its length direction on a side away from the cavity opening, the convex portion is located on one side of the support portion, and an opening communicating with the receiving cavity is opened on a side of the convex portion close to the support portion; The detection end of the limit switch detects the position of the clothes drying rod of the clothes drying machine in the receiving cavity through the opening.

12. The clothes drying rod limiting mechanism according to any one of claims 1 to 9, characterized in that: The ratio of the length of the installation box to the distance between any two adjacent limit switches is 1.5:1-3:

1.

13. A clothes drying machine, characterized in that: include: The clothes-drying rod limiting mechanism and the electrically connected control module and motor assembly according to any one of claims 1 to 12; The drying rod is connected to the motor assembly via a traction rope.

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