Clothes drying box equipment suitable for hotels

By introducing technologies such as a U-shaped outer shell reflux channel, activated carbon filter, and negative ion generator into hotel drying equipment, the problems of large size, low efficiency, and insufficient air purification of traditional drying equipment have been solved, achieving an efficient, safe, and convenient clothing drying solution.

CN224259049UActive Publication Date: 2026-05-19EINCHUANG TIMES TECHNOLOGY (SHENZHEN) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
EINCHUANG TIMES TECHNOLOGY (SHENZHEN) CO LTD
Filing Date
2025-06-06
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing hotel drying equipment is bulky, inefficient, and unable to meet temporary drying needs. It also lacks an air purification mechanism, resulting in problems such as difficulty in removing odors from clothes, bacterial growth, and mold.

Method used

A drying oven device suitable for hotels has been designed. It adopts a U-shaped outer shell and an inner box to form a return channel. It has a built-in activated carbon filter, negative ion generator and fragrance drawer. Combined with a graphene heating plate and moving casters, it can achieve air circulation purification and uniform heating. It is equipped with a QR code controller to simplify operation.

Benefits of technology

It improves drying efficiency and air quality, removes odors from clothes, sterilizes and disinfects, reduces energy waste, and enhances user experience and equipment safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses clothes drying box equipment suitable for hotels, which comprises an inner box body and moving rollers uniformly arranged at the four corners of the bottom of the inner box body, and further comprises an outer box body assembly, and the outer box body assembly comprises a U-shaped outer shell arranged on the outer side of the inner box body in an upside-down manner; a backflow channel is formed between the inner wall of the U-shaped outer shell and the outer wall of the inner box body; a notch is formed in the middle of the side wall of the inner box body, a graphene heating plate is mounted in the notch, a protective net is mounted on the inner wall of the inner box body on the inner side of the graphene heating plate, a protective cover is mounted on the outer wall of the inner box body on the outer side of the graphene heating plate, and a heat insulation layer is uniformly laid on the inner wall of the protective cover. The backflow channel is formed between the inner wall of the U-shaped outer shell and the outer wall of the inner box body, so that hot air circularly flows in the inner box body and the backflow channel, and clothes are heated more uniformly. The activated carbon filter element not only can adsorb peculiar smell, but also can effectively purify air, and it is ensured that clothes are kept fresh in the drying process.
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Description

Technical Field

[0001] This utility model relates to the field of clothing drying technology, specifically a drying box device suitable for hotels. Background Technology

[0002] In the modern hotel service system, providing guests with convenient and efficient laundry solutions is a crucial aspect of enhancing their stay. Currently, the main problems with laundry drying equipment in hotel rooms are as follows:

[0003] Traditional hotel drying equipment is mostly either freestanding dryers or simple drying racks. The former is bulky and takes up valuable room space, while the latter is inefficient and cannot meet the needs of guests for quick clothing drying. Especially for business travelers or tourists, who often face the need for rapid drying of damp clothes, existing equipment struggles to provide a timely and effective solution. Furthermore, traditional drying equipment lacks effective air purification mechanisms, making it difficult to remove odors from clothes during the drying process, and bacteria can easily grow inside the equipment, causing secondary pollution. Mold growth on clothes is particularly prevalent during the rainy season or in humid southern regions. Utility Model Content

[0004] The purpose of this invention is to provide a drying oven device suitable for hotels, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drying oven device suitable for hotels, comprising an inner box and movable rollers evenly arranged at the four corners of the bottom of the inner box, and further comprising...

[0006] The outer casing assembly includes a U-shaped outer casing that is inverted and disposed on the outside of the inner casing. A reflux channel is formed between the inner wall of the U-shaped outer casing and the outer wall of the inner casing. Both sides of the U-shaped outer casing are provided with drying frames that extend into the reflux channel. An activated carbon filter is provided inside the drying frame. A negative ion generator and an air freshener drawer are also provided inside the reflux channel below the drying frame.

[0007] The top of the inner box has two holes 1 connected to the return channel, and the bottom of both sides of the inner box has holes 2 connected to the return channel. An exhaust fan and an intake fan are installed inside the holes 1 and 2, respectively.

[0008] A slot is provided in the middle of the side wall of the inner box, and a graphene heating plate is installed inside the slot. A protective net is installed on the inner wall of the inner box inside the graphene heating plate, and a protective cover is installed on the outer wall of the inner box outside the graphene heating plate. The inner wall of the protective cover is evenly covered with a heat insulation layer.

[0009] Furthermore, a QR code is provided on one side of the U-shaped outer shell, which is connected to a controller installed at one corner of the top of the inner box, and a temperature sensor is installed at the other corner of the top of the inner box.

[0010] Furthermore, electromagnets are installed at both the top and bottom of the opening of the inner box, and a door is hinged to one side of the opening of the inner box. Attracting plates are installed on the inner side of the door at the positions corresponding to the electromagnets, and an acrylic viewing window is installed on the door.

[0011] Furthermore, the bottom of the inner box is provided with drainage holes arranged in parallel, and a collection tray is detachably installed on the bottom of the inner box below the drainage holes via a slot.

[0012] Furthermore, a clothes rack is installed in the middle of the top of the inner box between the two holes, and humidity sensors are installed on the inner walls of the return channels above the two holes.

[0013] Furthermore, both sides of the U-shaped outer casing are provided with openings for disassembling and assembling the drying frame and the fragrance drawer.

[0014] This utility model provides a drying oven device suitable for hotels, which has the following significant advantages compared with the prior art:

[0015] 1. A QR code is located on one side of the U-shaped outer casing of this device. This QR code connects to a controller installed at the top corner of the inner casing. Users can operate the device via a WeChat mini-program by scanning the QR code, greatly simplifying the usage process and improving the user experience.

[0016] 2. A reflux channel is formed between the inner wall of the U-shaped outer casing and the outer wall of the inner chamber, with an activated carbon filter installed inside. Through a hot air circulation system, the combined action of the exhaust fan and the intake fan ensures that hot air circulates within the inner chamber and the reflux channel, resulting in more even heating of the clothes. The activated carbon filter not only absorbs odors but also effectively purifies the air, ensuring that clothes remain fresh during the drying process. The high-efficiency heating performance of the graphene heating plate further enhances drying efficiency.

[0017] 3. The equipment features a graphene heating plate installed in the middle of the inner side wall of the casing, with protective nets and covers installed on its inner and outer sides respectively. The inner wall of the protective cover is evenly covered with a heat insulation layer. These multiple layers of protection effectively prevent users from accidentally touching the heating plate during use, ensuring safety. The electromagnet and suction plate design at the inner casing opening ensures the door closes securely, preventing accidental opening and further enhancing the equipment's safety.

[0018] 4. The device has a built-in negative ion generator that continuously releases negative ions during the drying process, effectively removing static electricity from clothes and also sterilizing and disinfecting them, ensuring the hygiene of the garments. The fragrance drawer allows users to place different scented fragrances as needed, not only removing odors but also maintaining a natural fragrance during the drying process, enhancing the user experience.

[0019] 5. The drainage holes and removable collection tray at the bottom of the inner chamber allow for the smooth discharge and collection of condensate generated during the drying process, preventing water stains and simplifying cleaning. The design of the reflux channel and hot air circulation system effectively utilizes heat during the drying process, reducing energy waste. The use of activated carbon filters not only improves air quality but also reduces the emission of harmful gases. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the internal structure of the inner box of this utility model;

[0022] Figure 2 This is a schematic diagram of the main structure of the inner box of this utility model;

[0023] Figure 3 This is a schematic diagram of the overall internal structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the overall side view structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the overall main structure of this utility model;

[0026] Figure 6 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0027] In the diagram: 1. Inner casing; 101. Groove; 102. Hole 1; 103. Hole 2; 104. Drainage hole; 2. Controller; 3. Exhaust fan; 4. Clothes rack; 5. Humidity sensor; 6. Outer casing assembly; 602. U-shaped outer casing; 601. Return channel; 7. Temperature sensor; 8. Electromagnet; 9. Drying frame; 901. Activated carbon filter; 10. Negative ion generator; 11. Inlet fan; 12. Fragrance drawer; 13. Protective net; 14. Door; 1401. Acrylic viewing window; 1402. Adhesive strip; 15. QR code; 16. Collection tray; 17. Card slot; 18. Moving casters; 19. Graphene heating plate; 20. Protective cover; 21. Insulation layer. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0029] Please see Figure 1-6 One embodiment of this utility model provides a drying oven device suitable for hotels, including an inner box 1 and movable rollers 18 evenly arranged at the four corners of the bottom of the inner box 1, and also includes...

[0030] The outer casing assembly 6 includes a U-shaped outer casing 602 that is upside down and disposed on the outside of the inner casing 1. A QR code 15 is provided on one side of the U-shaped outer casing 602. The QR code 15 is connected to a controller 2 installed at one corner of the top inside the inner casing 1. A temperature sensor 7 is installed at the other corner of the top inside the inner casing 1.

[0031] The clothes drying oven mainly consists of an inner chamber 1 and an outer chamber assembly 6. The inner chamber 1 is used to place clothes to be dried, and movable rollers 18 are evenly arranged at the four corners of its bottom to facilitate the movement and positioning of the equipment.

[0032] The outer casing assembly 6 includes a U-shaped outer casing 602 that is snapped up onto the outside of the inner casing 1. The design of the U-shaped outer casing 602 is not only aesthetically pleasing but also effectively protects the inner casing 1 and its internal components. A QR code 15 is provided on one side of the U-shaped outer casing 602, which is connected to a controller 2 installed at one corner of the top of the inner casing 1.

[0033] Controller 2 is the core control component of the entire device, responsible for receiving and processing instructions from QR code 15 and controlling various functions of the device. A temperature sensor 7 is installed at the other corner of the top of the inner chamber 1 to monitor the internal temperature in real time and transmit the data to controller 2 for temperature regulation.

[0034] A reflux channel 601 is formed between the inner wall of the U-shaped outer shell 602 and the outer wall of the inner box 1. Both sides of the U-shaped outer shell 602 are provided with drying frames 9 extending into the reflux channel 601. An activated carbon filter element 901 is provided inside the drying frame 9. A negative ion generator 10 and an aromatherapy drawer 12 are also provided inside the reflux channel 601 below the drying frame 9.

[0035] Both sides of the U-shaped outer casing 602 are provided with openings for disassembling and assembling the drying frame 9 and the fragrance drawer 12.

[0036] The U-shaped outer shell 602 is made of high-strength plastic material, which has good corrosion resistance and durability.

[0037] The return channel 601 formed between the inner wall of the U-shaped outer shell 602 and the outer wall of the inner box 1 is used to guide airflow and improve air purification efficiency.

[0038] The drying frame 9 is located on both sides of the U-shaped outer shell 602 and extends into the reflux channel 601.

[0039] The drying frame 9 features a detachable design, making it convenient for users to replace.

[0040] Each drying frame 9 is equipped with an activated carbon filter 901 inside, which is used to adsorb moisture, harmful substances and odors in the air.

[0041] The activated carbon filter element 901 is made of high-quality activated carbon material, which has high adsorption performance and can effectively cover the internal space of the drying frame 9.

[0042] The negative ion generator 10 is installed inside the reflux channel 601 below the drying frame 9.

[0043] Its function is to generate a large number of negative ions, further purifying the air and improving air quality.

[0044] The fragrance drawer 12 is located below the negative ion generator 10 and is also located inside the reflux channel 601.

[0045] The drawer-style design allows users to easily add or replace air fresheners to adjust the indoor odor.

[0046] Two holes 102 connected to the return channel 601 are arranged side by side on the top of the inner side of the inner box 1. A clothes hanger 4 is also provided in the middle of the top of the inner box 1 between the two holes 102. Humidity sensors 5 are installed on the inner wall of the return channel 601 above the two holes 102.

[0047] Both sides of the inner box 1 have holes 103 at the bottom that communicate with the return channel 601. Exhaust fan 3 and intake fan 11 are installed inside holes 102 and 103, respectively.

[0048] Two holes 102 are arranged side by side on the top inner side of the inner box 1. These two holes 102 are connected to the return channel 601 to ensure the uniformity and efficiency of air circulation.

[0049] A humidity sensor 5 is installed on the inner wall of the return channel 601 to monitor the humidity in the circulating air in real time. The installation position of the humidity sensor 5 on the inner wall of the return channel 601 can more accurately reflect the humidity of the air inside the chamber.

[0050] A clothes hanger 4 is installed at the top center of the inner box 1 between the two holes 102. The clothes hanger 4 is made of high-temperature resistant and corrosion-resistant metal or plastic to ensure its stability and durability in high-temperature and dry environments.

[0051] Both sides of the inner casing 1 have holes 103 at their bottom ends that communicate with the return channel 601. The design position and number of holes 103 have also been optimized to ensure uniform and efficient airflow.

[0052] An exhaust fan 3 and an intake fan 11 are installed inside holes 102 and 103, respectively. The exhaust fan 3, located inside hole 102, is used to extract moisture from the chamber and discharge it outside through the return channel 601. The intake fan 11, located inside hole 103, is used to introduce filtered air into the chamber, creating good air circulation.

[0053] A slot 101 is provided in the middle of the side wall of the inner box 1. A graphene heating plate 19 is installed inside the slot 101. A protective net 13 is installed on the inner wall of the inner box 1 inside the graphene heating plate 19. A protective cover 20 is installed on the outer wall of the inner box 1 outside the graphene heating plate 19. A heat insulation layer 21 is evenly laid on the inner wall of the protective cover 20.

[0054] The inner casing 1 of this invention has a slot 101 in the middle of its side wall. The slot 101 is located in the middle of the side wall of the inner casing 1 to facilitate the installation and heat dissipation of the graphene heating plate 19. The size of the slot 101 is designed according to the size of the graphene heating plate 19 to ensure that the graphene heating plate 19 can be stably embedded in the slot 101.

[0055] Inside the slot 101, a graphene heating plate 19 is installed. The graphene heating plate 19 is made of graphene material with high thermal conductivity, and has the advantages of fast heating speed, high thermal efficiency, energy saving and environmental protection. The graphene heating plate 19 is fixed inside the slot 101 to ensure that it will not shift during use.

[0056] To enhance safety, a protective mesh 13 is installed on the inner wall of the inner casing 1 inside the graphene heating plate 19. The protective mesh 13 is made of a high-temperature resistant and corrosion-resistant metal material with appropriately sized mesh openings, preventing foreign objects from directly contacting the graphene heating plate 19 while ensuring effective heat transfer. The protective mesh 13 is fixed to the inner wall of the inner casing 1 using screws or other fixing methods, ensuring its stability and reliability.

[0057] A protective cover 20 is installed on the outer wall of the inner casing 1, outside the graphene heating plate 19. The protective cover 20 is made of high-strength, high-temperature resistant metal material, and its shape matches the shape of the slot 101, completely covering the slot 101 and the graphene heating plate 19 inside. The protective cover 20 is fixed to the outer wall of the inner casing 1 by welding or other fixing methods to ensure its firmness and reliability.

[0058] The inner wall of the protective cover 20 is uniformly covered with a heat insulation layer 21. The heat insulation layer 21 is made of high heat insulation materials, such as silicate fiber and ceramic fiber, which can effectively isolate the heat generated by the graphene heating plate 19, prevent heat from being transferred outward, and improve the thermal efficiency and safety of the equipment. The heat insulation layer 21 is evenly laid on the inner wall of the protective cover 20 to ensure that it covers the entire surface without any gaps.

[0059] Electromagnets 8 are installed at both the top and bottom of the opening of the inner box 1, and a door 14 is hinged to one side of the opening of the inner box 1. A suction plate 1402 is installed on the inner side of the door 14 at the position corresponding to the electromagnet 8, and an acrylic viewing window 1401 is installed on the door 14.

[0060] The bottom of the inner box 1 is provided with drainage holes 104 in parallel, and the bottom of the inner box 1 below the drainage holes 104 is detachably installed with a collection tray 16 via a slot 17.

[0061] This utility model includes an inner box 1, the opening of which is designed with a special locking structure. Electromagnets 8 are respectively installed at the upper and lower ends of the opening of the inner box 1, and the electromagnets 8 are firmly fixed to the wall of the inner box 1 by screws or other fixing methods. The function of the electromagnets 8 is to lock and release the door 14 through electromagnetic force.

[0062] The door 14 is hinged to one side of the opening of the inner box 1 via a hinge 15, allowing the door 14 to rotate and open around the hinge 15. A suction plate 1402 is installed on the inner side of the door 14 at the position corresponding to the electromagnet 8. The suction plate 1402 is typically made of ferromagnetic material and can be attracted by the electromagnet 8. When the electromagnet 8 is energized, the suction plate 1402 is attracted, thus firmly locking the door 14 at the opening of the inner box 1; when the electromagnet 8 is de-energized, the suction plate 1402 loses its attraction, and the door 14 can be opened freely.

[0063] An acrylic viewing window 1401 is also installed on the door 14. The function of the acrylic viewing window 1401 is to allow users to observe the status of the items inside the inner box 1 without opening the door 14, thereby facilitating user management and retrieval of items.

[0064] Multiple drainage holes 104 are arranged side by side at the bottom of the inner box 1. These drainage holes 104 are evenly distributed at the bottom of the inner box 1 so that water can be discharged through the drainage holes 104.

[0065] A collection tray 16 is detachably installed at the bottom of the inner casing 1 below the drain hole 104 via a slot 17. The function of the collection tray 16 is to collect the water discharged through the drain hole 104, preventing water from dripping directly into the external environment. The collection tray 16 is connected to the bottom of the inner casing 1 via the slot 17, and the user can easily remove and clean the collection tray 16 as needed.

[0066] When this application embodiment is used,

[0067] Staff used the casters 18 to move the device to the designated location in the hotel room, ensuring it was placed stably. Upon first use, guests scanned the QR code 15 on the side of the U-shaped outer casing 602, and the WeChat mini-program automatically connected to the controller 2 on the top of the inner casing 1, accessing the device's control interface.

[0068] When a guest clicks the "Open Door" button on the WeChat mini-program, controller 2 de-energizes electromagnet 8, and door 14 unlocks.

[0069] Open the door 14 and hang the clothes to be dried on the clothes rack 4 on the top of the inner box, ensuring that the clothes do not block the hole 102 and the protective net 13.

[0070] When the door 14 is closed, the controller 2 controls the electromagnet 8 to be energized, and the suction plate 1402 securely locks the door.

[0071] The acrylic viewing window 1401 allows observation of the condition of the clothing inside, while the controller simultaneously initiates a safety check.

[0072] The graphene heating plate 19 is powered on and heats up to the set temperature within 3 minutes. The heat is evenly distributed to the inner chamber 1 through the protective net 13.

[0073] The exhaust fan 3 draws out the hot and humid air from the inner chamber through the hole 102 and delivers it to the drying frame 9 through the return channel 601.

[0074] Drying frame purification: Humid and hot air passes through the activated carbon filter element 901, which adsorbs moisture, odors and harmful substances;

[0075] Negative ion generation: The purified air flows through the negative ion generator 10, releasing negative ions to sterilize and remove static electricity;

[0076] Fragrance treatment: Air passes through fragrance drawer 12, carrying fragrance molecules into circulation;

[0077] Hot air recirculation: The inlet fan 11 sends the treated hot air back to the inner chamber through the second hole 103, forming a closed loop of "inner chamber → recirculation channel → inner chamber".

[0078] Temperature sensor 7 monitors the temperature of the inner chamber in real time. When it exceeds the set value by 5°C, controller 2 reduces the power of the graphene heating plate; when it is below the set value by 3°C, it increases the heating power.

[0079] Humidity sensor 5 monitors the air humidity in the return channel. When the humidity is >60%RH, exhaust fan 3 accelerates to expel moisture; when the humidity is <40%RH, the exhaust frequency is reduced to maintain a suitable drying environment.

[0080] The condensate generated during the drying process flows into the collection tray 16 through the drain hole 104 at the bottom of the inner chamber to avoid water stains.

[0081] When a guest clicks the "Open Door" button on the WeChat mini-program, the electromagnet 8 is de-energized, and the door 14 is opened to retrieve clothing.

[0082] The device automatically resets to standby mode.

[0083] Obviously, the embodiments described above 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 should fall within the protection scope of this utility model.

[0084] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0085] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0086] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A clothes drying machine suitable for hotels, comprising an inner box (1) and movable rollers (18) evenly arranged at the four corners of the bottom of the inner box (1), characterized in that: Also includes The outer casing assembly (6) includes a U-shaped outer casing (602) that is upside down and disposed on the outside of the inner casing (1). A reflux channel (601) is formed between the inner wall of the U-shaped outer casing (602) and the outer wall of the inner casing (1). Both sides of the U-shaped outer casing (602) are provided with drying frames (9) that extend into the reflux channel (601). An activated carbon filter element (901) is provided inside the drying frame (9). A negative ion generator (10) and an aromatherapy drawer (12) are also provided inside the reflux channel (601) below the drying frame (9). The inner box (1) has two holes (102) arranged side by side at the top of the inner side, which are connected to the return channel (601). The bottom of both sides of the inner box (1) is provided with holes (103) that are connected to the return channel (601). The holes (102) and (103) are respectively equipped with an exhaust fan (3) and an intake fan (11). A slot (101) is provided in the middle of the side wall of the inner box (1). A graphene heating plate (19) is installed inside the slot (101). A protective net (13) is installed on the inner wall of the inner box (1) inside the graphene heating plate (19). A protective cover (20) is installed on the outer wall of the inner box (1) outside the graphene heating plate (19). A heat insulation layer (21) is evenly laid on the inner wall of the protective cover (20).

2. The drying oven equipment suitable for hotels according to claim 1, characterized in that: A QR code (15) is provided on one side of the U-shaped outer shell (602). The QR code (15) is connected to a controller (2) installed at one corner of the top of the inner box (1). A temperature sensor (7) is installed at the other corner of the top of the inner box (1).

3. A clothes drying oven device suitable for hotels according to claim 1, characterized in that: Electromagnets (8) are installed at both the top and bottom of the opening of the inner box (1), and a door (14) is hinged to one side of the opening of the inner box (1). A suction plate (1402) is installed on the inner side of the door (14) at the position corresponding to the electromagnet (8), and an acrylic viewing window (1401) is installed on the door (14).

4. A drying oven device suitable for hotels according to claim 1, characterized in that: The bottom of the inner box (1) is provided with drainage holes (104) arranged side by side, and the bottom of the inner box (1) below the drainage holes (104) is provided with a collection tray (16) that can be detachably installed through a slot (17).

5. A clothes drying oven device suitable for hotels according to claim 1, characterized in that: A clothes rack (4) is also provided in the middle of the top of the inner box (1) between the two holes (102), and a humidity sensor (5) is installed on the inner wall of the return channel (601) above the two holes (102).

6. A clothes drying oven device suitable for hotels according to claim 1, characterized in that: Both sides of the U-shaped outer shell (602) are provided with openings for disassembling and assembling the drying frame (9) and the fragrance drawer (12).