Warmer

Abstract

The utility model discloses a warmer, which relates to the field of household appliances, and adopts the technical scheme that the warmer comprises a mask, the mask is provided with a blow-off nozzle and a light-emitting component, the light-emitting component is positioned on the front surface of the mask, and the blow-off nozzle is positioned on the side surface of the mask. The air blowing opening is moved to the side face, the space of the front face of the mask can be completely used for the light-emitting assembly, the illumination area is larger, the illumination quantity is improved, and the large-area illumination requirement is met. The blowing port does not occupy the front of the mask, so that the overall design is simpler.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of household appliances, in particular to a warmer. BACKGROUND

[0002] The existing warmer or bath heater is usually composed of a mask and a box body, and the mask is fixedly installed on the box body. The front face of the mask is usually provided with a blowing port and a light-emitting assembly. The blowing port is used for hot air output, and the light-emitting assembly is used to provide the lighting function. However, in the actual use process, this structure has certain limitations.

[0003] Because the blowing port occupies part of the area of the mask, the space available for the light-emitting assembly is limited. When large-area illumination is required, the arrangement of the light-emitting assembly is restricted by the position of the blowing port, and it is difficult to obtain a larger amount of illumination. SUMMARY

[0004] The utility model discloses a kind of warmers, it has compared with the front air outlet, side air outlet can form larger range air circulation path, make heat evenly spread to entire bathroom, reduce the advantage of local temperature excessively high.

[0005] The above technical purpose of the utility model is realized by the following technical scheme:

[0006] A kind of warmer, comprising:

[0007] Mask, the mask is equipped with blowing port and light-emitting assembly, the light-emitting assembly is located at the front face of the mask, and the blowing port is located at the side face of the mask.

[0008] Further setting: further include air duct, at least a part of the air duct is located on the back side of the mask, and the air duct is communicated with the blowing port.

[0009] Further setting: further include air inlet, and the air inlet is located at the side face of the mask.

[0010] Further setting: further include baffle, and the baffle is located in air duct, so as to divide the air duct into blowing duct communicated with blowing port and air inlet duct communicated with air inlet.

[0011] Further setting: the baffle is rotatably connected to the box body or integrally connected to the mask.

[0012] Further setting: the mask side face where the air inlet and blowing port are located is different side face.

[0013] Further setting:

[0014] Box body;

[0015] A lifting mechanism is arranged between the box and the mask, and is suitable for driving the mask to lift, so that the mask has a first state of being accommodated in the box and a second state of extending out of the box to expose the air outlet to the outside.

[0016] Further, the lifting mechanism comprises a transmission member connected with the mask and a power source suitable for driving the transmission member to move linearly.

[0017] Further, the power source is suitable for outputting rotary motion, and the lifting mechanism further comprises a driving member driven to rotate by the power source, and a transmission structure arranged between the driving member and the transmission member, and suitable for converting the rotary motion of the driving member into the linear motion of the transmission member.

[0018] Further, the box further comprises a wind collecting plate, the transmission member of the lifting mechanism is arranged on the mask, and the power source and the driving member are arranged on the wind collecting plate.

[0019] Further, the wind collecting plate is arranged with a sunken groove recessed downward relative to the inner side of the box, and a part of the lifting mechanism is located in the sunken groove.

[0020] Further, the air duct further comprises an air outlet duct arranged in the box and a volute, and the positions of the projections of the volute and the air outlet duct on the wind collecting plate do not overlap with the position of the sunken groove.

[0021] Further, the lifting mechanism is arranged with a stabilizing mechanism on one side or both sides.

[0022] Further, the stabilizing mechanism comprises:

[0023] A first rotating wheel and a second rotating wheel are arranged on the mask;

[0024] A central rotating wheel is arranged on the wind collecting plate;

[0025] A first rope and a second rope, one end of the first rope is wound to the first rotating wheel, and the other end is wound to the central rotating wheel; one end of the second rope is wound to the second rotating wheel, and the other end is wound to the central rotating wheel; the winding directions of the first rope and the second rope on the central rotating wheel are opposite; the central rotating wheel is in transmission connection with the power source, so that it rotates under the driving of the power source, thereby driving the first rope and the second rope to be wound or unwound.

[0026] Further, the mask is provided with an extension segment H close to the inside of the box, and the projection of the extension segment H on the side wall of the box overlaps at least part of the side wall of the box.

[0027] In summary, the utility model has the following beneficial effects:

[0028] First, in the utility model, the blowing opening is moved to the side face, the space of the front face of the mask can be used for the light emitting assembly completely, the illumination area is larger, the illumination amount is improved, and the large area illumination demand is met. Since the blowing opening no longer occupies the front face of the mask, the overall design is more simple.

[0029] Second, in the utility model, the blowing opening is located at the side face, the hot air of the front face air outlet is generally blown forward, the airflow is blown to the bottom and then rises, and the circulation range is small. The side face air outlet makes the hot air diffuse along the edge of the bathroom space, the airflow of the side face can flow to the far end, a larger range of heat convection is formed, a larger heat circulation area is finally formed, and the overall heating efficiency is improved.

[0030] Moreover, the side face air outlet can reduce the direct impact of the hot air on the face, avoid local overheating, and improve the use comfort.

[0031] Third, in the utility model, the mask has a first state of being stored in the box body and a second state of being extended out of the box body to expose the blowing opening to the outside. In the first state, the mask can be retracted into the box body, the blowing opening is blocked, the blowing opening is hidden in the non-use state, visual interference is avoided, and the product appearance is more neat and beautiful. In addition, the blowing opening can be blocked by the mask in the non-working state, dust and water vapor are prevented from entering the inside, the cleaning and maintenance frequency is reduced, and the product durability is improved.

[0032] Fourth, in the utility model, the mask needs to keep stable operation during lifting, so as to avoid tilting, jamming or shaking, thereby ensuring normal use and prolonging product life. Therefore, the stable mechanism can further optimize the structure stability and smooth operation.

[0033] Fifth, in the utility model, since the lifting mechanism is partially hidden in the groove of the air collecting plate, the thickness of the box body does not need to be additionally increased, the product can be made more lightweight and integrated, the requirement for the ceiling or wall mounting space is reduced, and the adaptability is improved. Moreover, the orthographic projection of the volute and the air outlet duct does not overlap with the sunken groove position, the installation of the wind wheel and the air duct air supply performance are avoided, the air volume is ensured, and the wind speed is stable.

[0034] Sixth, in the utility model, the mask has an extension section H near the inside of the box body. Since the projection of the extension section H at least partially overlaps with the side wall of the box body, the mask always keeps close contact with the box body during the extension process, the gap air leakage is effectively blocked, all hot air is ensured to be blown out of the blowing opening, and the heating efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 is a front structure schematic view of the warmer;

[0036] Figure 2 is a three-dimensional structure schematic view of the warmer;

[0037] Figure 3 is an exploded structural diagram of the warmer;

[0038] Figure 4 is a schematic diagram of the mask extended blowing state in an embodiment;

[0039] Figure 5 is a schematic diagram of the mask retracted state in an embodiment;

[0040] Figure 6 is a schematic diagram of the mask extended blowing state in another embodiment;

[0041] Figure 7 is a schematic diagram of the mask retracted state in another embodiment;

[0042] Figure 8 is a schematic diagram of the warmer with the mask removed showing the air collecting plate structure;

[0043] Figure 9 is a schematic diagram of the lifting mechanism and stabilizing structure;

[0044] Figure 10 is an exploded diagram of the warmer.

[0045] Figure 11 is a schematic diagram of the warmer in a perspective cutaway view;

[0046] Figure 12 is a schematic diagram of the connection relationship of the central rotating wheel and the first and second ropes;

[0047] Figure 13 is a schematic diagram of the lifting mechanism and stabilizing mechanism in the mask extended state;

[0048] Figure 14 is a schematic diagram of the lifting mechanism and stabilizing mechanism in the mask retracted state;

[0049] Figure 15 is a schematic diagram of the mounting structure with the conversion frame.

[0050] In the figure, 100, box body; 101, air outlet duct; 102, volute; 103, fan wheel;

[0051] 200, mask; 201, blowing port; 202, air inlet; 203, baffle; 204, rotating device; 205, air inlet duct; 206, blowing duct;

[0052] 300, conversion frame;

[0053] 400, air collecting plate; 401, air outlet; 402, air inlet; 403, sunken groove;

[0054] 500, lifting mechanism; 501, transmission member; 502, driving member; 503, power source;

[0055] 600, stabilizing mechanism; 601, first rotating wheel; 602, first rope; 603, second rotating wheel; 604, second rope; 605, central rotating wheel;

[0056] 700, light-emitting assembly. DETAILED DESCRIPTION

[0057] The utility model will be described in further detail below in combination with the drawings.

[0058] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model.

[0059] A warmer, as shown in Figure 1 and Figure 2 , comprises a box body 100 and a mask 200. Wherein, the box body 100 has an opening, and the mask 200 is located on the opening side of the box body 100 and is detachably or movably connected with the box body 100. In the embodiment, the mask 200 is provided with a blowing port 201 and a light-emitting assembly 700, the blowing port 201 is located on the side of the mask 200 and is used for blowing air flow in the lateral direction. The light-emitting assembly 700 is located on the front of the mask 200 and is used for providing the lighting function, so that the device has the lighting effect. The specific structure of the light-emitting assembly 700 is not limited, and in the embodiment, the light-emitting assembly 700 can be one or a combination of multiple kinds of LED lamp, fluorescent lamp, incandescent lamp, laser lamp, optical fiber lighting, xenon lamp and OLED panel. By moving the blowing port 201 to the side, the space on the front of the mask 200 can be completely used for the light-emitting assembly 700, so that the lighting area is larger, the light-emitting area is increased, and the lighting effect is improved.

[0060] The specific shape of the mask 200 is not limited, and in the embodiment, the cross-sectional shape of the mask 200 is rectangular, the mask 200 has a long side direction and a wide side direction, and preferably, the blowing port 201 is arranged on the side surface of the mask 200 in the long side direction. The side surface of the mask 200 in the long side direction can obtain a blowing port 201 with a larger area, and improve the blowing performance of the blowing port 201. As an alternative embodiment, the cross-sectional shape of the mask 200 is one of a square, a polygon, a circle, and a triangle.

[0061] On the basis of the above-mentioned embodiment, as a further limited embodiment, as shown in Figure 2 and Figure 3 , the warmer further comprises an air duct, at least a part of the air duct is arranged on the back side of the mask 200, and the air duct is in communication with the blowing port 201. The bottom of the mask 200 is recessed, and the recessed part can form a part of the air duct structure. As an alternative embodiment, the air duct part on the mask 200 is a separate pipe, one end of which is connected to the inside of the box body 100, and the other end is connected to the blowing port 201.

[0062] On the basis of the above-mentioned embodiment, as a further limited embodiment, as shown in Figure 2 and Figure 3 , the warmer further comprises an air inlet 202 arranged on the side surface of the mask 200. The air inlet 202 is in communication with the air duct on the mask 200. Preferably, the side surface of the mask 200 on which the air inlet 202 and the blowing port 201 are arranged is different. Furthermore, the warmer further comprises a baffle 203 located in the air duct, so as to divide the air duct into a blowing air duct 206 in communication with the blowing port 201 and an air inlet air duct 205 in communication with the air inlet 202. As an alternative embodiment, the air inlet 202 is arranged between the mask 200 and the box body 100, and air is introduced through the gap between the mask 200 and the box body 100. As an alternative embodiment, the air inlet 202 is arranged on the box body 100, such as using the side wall of the box body 100 to introduce air.

[0063] The specific structure of the baffle 203 is not limited, and in the embodiment, as shown in Figure 4 and Figure 5As shown, one preferred embodiment of the baffle 203 is that the baffle 203 is rotatably connected to the box 100. The baffle 203 is rotatably connected to the box 100. The power required for the rotation of the baffle 203 is provided by the rotation device 204 arranged on the box 100. The specific structure of the rotation device 204 is not limited, and in the embodiment, the rotation device 204 can be a micro motor or a torsional spring. As an alternative embodiment, the rotation device 204 can also be a pneumatic rotary cylinder or a magnetic rotary driver or a swing linkage mechanism or a cam mechanism. The rotary power is output by the rotation device 204 to drive the baffle 203 to swing. The baffle 203 is arranged on the side close to the blowing port 201. Referring to Figure 4 , the rotation device 204 drives the baffle 203 to rotate, and the outer end of the baffle 203 rotates to the outside of the box 100, and the end abuts against the bottom wall of the mask 200, so that the baffle 203 divides the air duct on the back of the mask 200 into the air inlet duct 205 and the blowing duct 206. Referring to Figure 5 , the rotation device 204 first rotates the baffle 203, and the baffle 203 can be in a state parallel to the opening of the box 100 or in a state turned inside the box 100.

[0064] Referring to Figures 6-7 , as an alternative embodiment, the baffle 203 is integrally connected to the mask 200. The baffle 203 is arranged near the blowing port 201. One end of the baffle 203 is fixed to the bottom wall or the side wall of the mask 200, and the other end is inclined and extends inwardly to the box 100. Thus, the air duct on the back of the mask 200 is divided into the blowing duct 206 and the air inlet duct 205.

[0065] On the basis of the above-mentioned embodiment, as a further defined embodiment, as shown in Figure 8 and Figure 9 , further comprising a lifting mechanism 500. In the embodiment, the lifting mechanism 500 is arranged between the box 100 and the mask 200, and the lifting mechanism 500 is adapted to drive the mask 200 to lift, so that the mask 200 has a first state of being accommodated in the box 100 and a second state of being extended out of the box 100 to expose the blowing port 201 to the outside. In the first state, the mask 200 is retracted into the box 100. Here, in one embodiment, the surface of the mask 200 is flush with the opening of the box 100, and the mask 200 is completely hidden in the box 100. In another embodiment, referring to Figure 15The mask 200 is installed on the ceiling, the opening of the ceiling has a conversion frame 300, the mask 200 is installed on the conversion frame 300, and the box 100 is installed on the upper space of the ceiling. The surface of the mask 200 protrudes from the opening of the box 100 and is flush with the conversion frame 300 at the position of the conversion frame 300. The flush in the present application means that the two components are theoretically located on the same plane. As an alternative embodiment, the flush means that the two components are close to the same plane, and there is a certain allowance in the installation accuracy and assembly accuracy.

[0066] The specific structure of the lifting mechanism 500 is not limited, and part of the lifting mechanism 500 is arranged on the box 100, and the other part acts on the mask 200 to drive the mask 200 to lift. In the embodiment, the lifting mechanism 500 includes a transmission member 501 connected with the mask 200 and a power source 503 suitable for driving the transmission member 501 to linearly move.

[0067] As one of the embodiments, the power source 503 is a power source 503 outputting rotary motion, and the lifting mechanism 500 further includes a driving member 502 driven to rotate by the power source 503. The driving member 502 and the transmission member 501 are provided with a transmission structure, and the transmission structure is suitable for converting the rotary motion of the driving member 502 into the linear motion of the transmission member 501. In this embodiment, the power source 503 is a motor, the driving member 502 is a gear, the transmission member 501 is a rack, and the transmission structure is a gear transmission structure. The motor drives the gear to rotate, and the rotary motion of the gear is converted into the reciprocating linear motion of the rack. The mask 200 is lifted by the rack.

[0068] As an alternative embodiment, the lifting mechanism 500 can also be one of a lead screw nut mechanism, a hydraulic cylinder lifting mechanism 500, an air cylinder lifting mechanism 500, a worm gear lifting mechanism 500, a chain or belt transmission mechanism, a guide rail sliding block lifting mechanism 500, a scissor lifting mechanism 500, a magnetic levitation lifting mechanism 500, and a telescopic rod.

[0069] On the basis of the above-mentioned embodiment, as a further defined embodiment, as shown in Figure 8 The box 100 further includes a wind collecting plate 400, the transmission member 501 of the lifting mechanism 500 is arranged on the mask 200, and the wind collecting plate 400 is used for guiding airflow and supporting the installation of related structures. The transmission member 501 of the lifting mechanism 500 is arranged on the mask 200, and the power source 503 and the driving member 502 are arranged on the wind collecting plate 400, so that the mask 200 can be extended or retracted relative to the box 100 under the driving of the lifting mechanism 500.

[0070] The structure of the air collecting plate 400 is designed with a sunken groove 403 on the inner side, and a part of the lifting mechanism 500 is located in the sunken groove 403, thereby reducing the occupation of the overall thickness by the lifting mechanism 500 and making the device more compact. The air collecting plate 400 is provided with a sunken groove 403 corresponding to the inner side of the box body 100, and a part of the lifting mechanism 500 is located in the sunken groove 403. Specifically, the power source 503 and the driving member 502 of the lifting mechanism 500 are installed in the sunken groove 403, and a part of the transmission member 501 is located in the sunken groove 403, and the other part extends and connects to the face cover 200. In the structure of the air collecting plate 400, there are an air inlet 402 and an air outlet 401, and the air outlet 401 is arranged corresponding to the blowing air duct 206. The airflow entering from the air inlet 202 enters the internal space of the box body 100.

[0071] On the basis of the above-mentioned embodiments, as a further defined embodiment, as shown in Figure 10 and Figure 11 , the air duct further comprises an air outlet duct 101 and a volute 102 arranged in the box body 100, which are arranged inside the box body 100 and used for guiding the smooth flow of airflow. The wind source is installed inside the volute 102, and the wind source is preferably a wind wheel 103 driven by a motor. The wind wheel 103 corresponds to the air inlet 402 of the air collecting plate 400, and the motor drives the wind wheel 103 to rotate to deliver airflow to the air outlet duct 101. The positions of the orthographic projections of the volute 102 and the air outlet duct 101 on the air collecting plate 400 do not overlap with the positions of the sunken groove 403. This ensures that the arrangement of the lifting mechanism 500 does not affect the normal air supply path of the air duct and does not interfere with the operation of the wind wheel 103, thereby ensuring that the air supply performance of the heater or the bathroom heater is not affected.

[0072] On the basis of the above-mentioned embodiments, as a further defined embodiment, as shown in Figure 8 and Figure 9 , further comprising a stabilizing mechanism arranged on one side or both sides of the lifting mechanism 500. Its function is to ensure that the face cover 200 is evenly stressed and smoothly runs during lifting, and to avoid tilting or shaking due to uneven stress on one side. The specific structure of the stabilizing mechanism is not limited, and the stabilizing mechanism can be the same structure as the lifting mechanism 500 to assist in stabilizing the face cover 200. The stabilizing mechanism can also be a linear movement mechanism, which is different from the lifting mechanism 500 in that it does not have an independent power source 503. For example: slide rail and slide block mechanism, guide column and guide sleeve mechanism.

[0073] In this embodiment, a specific implementation structure of the stabilizing mechanism is given, as shown in Figure 8 , Figure 9 and Figure 12As shown, the stabilizing mechanism includes a first rotating wheel 601 and a second rotating wheel 603 arranged on the mask 200, and a central rotating wheel 605 arranged on the air collecting plate 400; the first rotating wheel 601 and the second rotating wheel 603 are fixedly installed on the bottom wall of the mask 200. The central rotating wheel 605 is installed on the surface of the air collecting plate 400 opposite to the mask 200. The stabilizing mechanism further includes a first rope 602 and a second rope 604, one end of the first rope 602 is wound to the first rotating wheel 601, and the other end is wound to the central rotating wheel 605; one end of the second rope 604 is wound to the second rotating wheel 603, and the other end is wound to the central rotating wheel 605; the winding directions of the first rope 602 and the second rope 604 on the central rotating wheel 605 are opposite; the central rotating wheel 605 is in driving connection with the power source 503, so that it rotates under the driving of the power source 503, thereby driving the first rope 602 and the second rope 604 to be wound or unwound.

[0074] Reference Figure 13 The driving member 502 and the central rotating wheel 605 adopt the same power source 503. When the central rotating wheel 605 rotates clockwise, the driving member 502 drives the transmission member 501 to extend, and pushes the mask 200 out of the box body 100, and exposes the air outlet 201. In this process, the central rotating wheel 605 rotates synchronously under the driving of the power source 503, and the first rope 602 and the second rope 604 are released synchronously, so as to ensure that the mask 200 is stably extended and will not be tilted or jammed due to gravity. Figure 14 When the central rotating wheel 605 rotates counterclockwise, the driving member 502 drives the transmission member 501 to retract, and retracts the mask 200 to the inside of the box body 100. In this process, the central rotating wheel 605 rotates synchronously under the driving of the power source 503, and the first rope 602 and the second rope 604 are retracted synchronously, so as to ensure that the mask 200 is stably retracted and will not be tilted or jammed due to gravity.

[0075] In this embodiment, the materials of the first rope 602 and the second rope 604 should have certain strength and have the elastic stretching and retracting characteristics. For example, aramid fiber coated elastic core, silica gel elastic rope, and U elastic body rope.

[0076] On the basis of the above-mentioned embodiment, as a further defined embodiment, as shown in Figure 15 The part of the mask 200 close to the inside of the box body 100 has an extension section H. The position of the extension section H is projected on the side wall of the box body 100, and the projection of the extension section H overlaps at least part of the side wall of the box body 100. The design of the extension section H ensures that when the mask 200 is extended to the outside of the box body 100, there will not be a large gap, thereby avoiding the air leakage problem.

[0077] The above embodiment is only an explanation of the present application, which is not a limitation of the present application, and a person skilled in the art can make a modification without creative contribution according to the need after reading the present specification, but as long as it is within the scope of the claims of the present application, it is protected by the patent law.

Claims

1. A warmer, characterized by, The utility model relates to a face guard (200) is provided with blowing port (201) and light-emitting component (700), light-emitting component (700) is located the front of face guard (200), blowing port (201) is located the side of face guard (200). Further comprising a wind channel, at least a part of the wind channel is provided on the back side of the face guard (200), and the wind channel is in communication with the blowing port (201).

2. The warmer of claim 1, wherein: Further comprising an air inlet (202) provided on the side of the face guard (200).

3. The warmer of claim 2, wherein: Further comprising a baffle (203) located in the wind channel to divide the wind channel into a blowing air channel (206) in communication with the blowing port (201) and an air inlet channel (205) in communication with the air inlet (202).

4. The warmer of claim 3, wherein: Further comprising:

5. The warmer of claim 4, wherein: a box body (100); The baffle (203) is rotatably connected to the box body (100) or integrally connected to the face guard (200). The side of the face guard (200) where the air inlet (202) and the blowing port (201) are located is different.

6. The warmer of any one of claims 3-5, wherein: Further comprising:

7. The warmer of claim 5, wherein: a lifting mechanism (500) provided between the box body (100) and the face guard (200), the lifting mechanism (500) being adapted to drive the face guard (200) to lift and lower, so that the face guard (200) has a first state of being accommodated in the box body (100) and a second state of extending out of the box body (100) to expose the blowing port (201) to the outside. The lifting mechanism (500) comprises a transmission member (501) connected to the face guard (200) and a power source (503) adapted to drive the transmission member (501) to move linearly.

8. The warmer of claim 7, wherein: The power source (503) is adapted to output rotary motion, and further comprises a driving member (502) driven to rotate by the power source (503), the driving member (502) and the transmission member (501) being provided with a transmission structure therebetween, the transmission structure being adapted to convert the rotary motion of the driving member (502) into linear motion of the transmission member (501).

9. The warmer of claim 8, wherein: The box body (100) further comprises a wind collecting plate (400), the transmission member (501) of the lifting mechanism (500) is provided on the face guard (200), and the power source (503) and the driving member (502) are provided on the wind collecting plate (400).

10. The warmer of claim 9, wherein: The wind collecting plate (400) is provided with a sunken groove (403) recessed downward relative to the inside of the box body (100), and a part of the lifting mechanism (500) is located in the sunken groove (403).

11. The warmer of claim 10, wherein: The wind channel further comprises an air outlet channel (101) and a volute (102) arranged in the box body (100), the positions of the projections of the volute (102) and the air outlet channel (101) on the wind collecting plate (400) do not overlap with the position of the sunken groove (403).

12. The warmer of claim 11, wherein: Further comprising a stabilizing mechanism provided on one side or both sides of the lifting mechanism (500).

13. The warmer of claim 10, wherein: The stabilizing mechanism comprises:

14. The warmer of claim 13, wherein: a first rotating wheel (601) and a second rotating wheel (603), both of which are arranged on the face guard (200); a central rotating wheel (605) arranged on the wind collecting plate (400); ​ The first rope (602) and the second rope (604), one end of the first rope (602) is wound to the first rotating wheel (601), and the other end is wound to the center rotating wheel (605); one end of the second rope (604) is wound to the second rotating wheel (603), and the other end is wound to the center rotating wheel (605); the winding directions of the first rope (602) and the second rope (604) on the center rotating wheel (605) are opposite; the center rotating wheel (605) is in driving connection with the power source (503), so that it rotates under the driving of the power source (503), thereby driving the first rope (602) and the second rope (604) to be wound or unwound.

15. The warmer of any one of claims 5, 8-14, wherein: The face guard (200) has an extension section H close to the inside of the box body (100), and the projection of the extension section H on the side wall of the box body (100) overlaps at least part of the side wall of the box body (100).

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