Sofa

Abstract

The utility model relates to the technical field of furniture sofas, in particular to a sofa, which is characterized by comprising a sofa body with a gap between the sofa body and the ground, and further comprising a track module arranged at the bottom of the sofa body and positioned in the gap, the roller cleaning assembly is arranged on the track module, and the track module is used for driving the roller cleaning assembly to move at the bottom of the sofa body; the roller cleaning assembly comprises a cleaning roller making contact with the ground and a cleaning cloth strip used for adsorbing dust and sundries, the cleaning roller is rotationally arranged, and the cleaning cloth strip is arranged on the surface of the cleaning roller; the driving device is arranged on the roller cleaning assembly, the driving device is in transmission connection with the cleaning roller and used for driving the cleaning roller to rotate, and the problem that the bottom of the sofa is difficult to clean can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to furniture sofa technical field especially relates to a sofa. BACKGROUND

[0002] As an important household furniture, sofa has experienced the change from traditional wooden structure to modern comfortable design. Under the background of globalized consumer demand and diversified home culture, sofa product not only continuously innovates in functionality and aesthetics, but also actively explores in material, intelligence and environmental protection. With the progress of technology, design innovation and changes in consumer demand, its development prospect is broad and market potential is huge.

[0003] The current sofa structure is mainly composed of a frame and a soft package. The soft package is arranged on the frame along the contour of the frame to provide comfortable support. However, the current sofa structure still has many inconveniences, such as the bottom of the sofa is easy to hide dirt and is difficult to clean. Usually, it is necessary to move the sofa or use a small tool to clean the bottom. At present, there is still a lack of a sofa structure that can clean the bottom of the sofa. Therefore, it is necessary to improve the existing technology.

[0004] The above information is given as background information only to assist with understanding the present disclosure, and does not establish or acknowledge that any of the above is available as prior art to the present disclosure. CONTENT OF THE UTILITY MODEL

[0005] The utility model provides a sofa to solve the problem of difficult cleaning of the bottom of the sofa in the prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A sofa comprises a sofa body, a gap exists between the sofa body and the ground, and further comprises:

[0008] A track module is arranged at the bottom of the sofa body and located in the gap;

[0009] A roller cleaning assembly is arranged in the track module, the track module is used to drive the roller cleaning assembly to move at the bottom of the sofa body; the roller cleaning assembly comprises a cleaning roller in contact with the ground and a cleaning cloth strip used to adsorb dust and sundries, the cleaning roller is rotatably arranged, and the cleaning cloth strip is arranged on the surface of the cleaning roller;

[0010] and a driving device arranged on the roller cleaning assembly and in transmission connection with the cleaning roller for driving the cleaning roller to rotate.

[0011] Preferably, the cleaning roller assembly further comprises:

[0012] a flexible telescopic rod connected with the track module;

[0013] a first connecting bracket arranged on the flexible telescopic rod, the cleaning roller being rotatably arranged on the first connecting bracket, and the flexible telescopic rod being configured to apply an elastic force to the first connecting bracket so that the cleaning roller is pressed against the ground.

[0014] Preferably, the cleaning roller assembly further comprises:

[0015] a second connecting bracket arranged on the flexible telescopic rod, and the driving device being arranged on the second connecting bracket;

[0016] a recovery roller rotatably arranged on the second connecting bracket, and the driving device being connected with the recovery roller and configured to drive the recovery roller to rotate;

[0017] the cleaning cloth strip being wound around the cleaning roller, one end of the cleaning cloth strip being fixedly connected with the recovery roller, and the recovery roller being configured to wind the dirty cleaning cloth strip and simultaneously drag the cleaning roller to rotate synchronously via the cleaning cloth strip.

[0018] Preferably, the driving device comprises,

[0019] a driving motor;

[0020] a first gear fixedly connected with an output shaft of the driving motor;

[0021] and a second gear engaged with the first gear, the second gear being in transmission connection with the cleaning roller.

[0022] Preferably, the track module comprises:

[0023] a track body fixedly arranged at the bottom of the sofa body;

[0024] and a displacement assembly movably arranged on the track body, the cleaning roller assembly being arranged on the displacement assembly.

[0025] Preferably, the track body has a U-shaped profile.

[0026] Preferably, the displacement assembly comprises:

[0027] a displacement seat slidably arranged on the track body, the track body having a plurality of engagement teeth arranged along the length direction of the track body;

[0028] a displacement motor arranged on the displacement seat.

[0029] And displacement gear, set in the output shaft of the displacement motor, and with the track body on the meshing tooth meshing.

[0030] Preferably, it also includes a timing control system, the timing control system includes:

[0031] Timer;

[0032] And control circuit, the timer and the receiving end of the control circuit are electrically connected, the sending end of the control circuit is electrically connected with the track module and the drive device respectively, the timer is used to send start-stop signal to the control circuit, the control circuit generates control signal in response to the start-stop signal, and the control signal is sent to the track module and the drive device to control the start-stop of the track module and the drive device.

[0033] Preferably, the cleaning roller is detachably connected with the first connecting support.

[0034] Preferably, the recycling roller is detachably connected with the second connecting support.

[0035] Compared with the prior art, the utility model has the following beneficial effects:

[0036] The sofa provided by the utility model can drive the roller cleaning module to move at the bottom of the sofa under the action of the track module, and then the cleaning roller in the roller cleaning assembly can smoothly roll at the bottom of the sofa through the drive device, so that dust, hair and small particle impurities at the bottom of the sofa can be effectively removed, especially the edge and corner at the bottom of the sofa can be cleaned, thereby improving the cleaning efficiency and quality of the bottom of the sofa, reducing the labor intensity of the cleaning personnel, and solving the problem that the bottom of the sofa is difficult to clean.

[0037] The utility model has other characteristics and advantages, which will be obvious from the drawings and subsequent specific embodiments incorporated herein or will be described in detail in the drawings and subsequent specific embodiments incorporated herein, which are used together to explain the specific principles of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0039] Figure 1is a structural schematic view of a sofa provided by the embodiment of the utility model;

[0040] Figure 2 is a contour schematic view of a track body provided by the embodiment of the utility model;

[0041] Figure 3 is a structural schematic view of a track module provided by the embodiment of the utility model;

[0042] Figure 4 is a structural schematic view of the sofa from another perspective provided by the embodiment of the utility model.

[0043] Figure 5 is Figure 4 is an enlarged view of part A in the middle;

[0044] Figure 6 is a structural schematic view of a driving device provided by the embodiment of the utility model;

[0045] Figure 7 is a structural schematic view of a timing control system provided by the embodiment of the utility model.

[0046] Reference signs:

[0047] 1, sofa body;

[0048] 2, track module; 21, track body; 22, displacement assembly; 221, displacement seat; 222, displacement motor; 223, displacement gear;

[0049] 3, roller cleaning assembly; 31, cleaning roller; 32, elastic telescopic rod; 33, first connecting support; 34, second connecting support; 35, recovery roller;

[0050] 4, driving device; 41, driving motor; 42, first gear; 43, second gear; 5, cleaning cloth strip; 6, timer; 7, control circuit. DETAILED DESCRIPTION

[0051] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme in the embodiment of the utility model will be described clearly and completely in the following by combining with the drawings in the embodiment of the utility model. Obviously, the following described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0052] In the description of the utility model, it is understood that when one component is considered to be "connected" with another component, it can be directly connected with another component or a component arranged in the middle can exist simultaneously. When one component is considered to be "arranged on" another component, it can be directly arranged on another component or a component arranged in the middle can exist simultaneously.

[0053] In addition, the terms "long", "short", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model, and do not indicate or imply that the device or element referred to must have this specific orientation, be constructed in a specific orientation for operation, and cannot be understood as a limitation of the utility model.

[0054] The technical scheme of the utility model is further illustrated below in combination with the drawings. Figures 1-6 The technical scheme of the utility model is further illustrated below in combination with the drawings.

[0055] Please refer to Figure 1 The utility model embodiment provides a sofa, including sofa body 1, there is gap between sofa body 1 and ground, the specific structure of sofa body 1 is not repeated here. On this basis, in order to realize the ground of sofa bottom cleaning, the intelligent sofa still includes track module 2, roller cleaning assembly 3 and drive arrangement 4.

[0056] Wherein, track module 2 is arranged at the bottom of sofa body 1 and is located in the gap, roller cleaning assembly 3 is arranged on track module 2, track module 2 is used to drive roller cleaning assembly 3 to move at the bottom of sofa body 1, and then roller cleaning assembly 3 can pass through most of the area of sofa bottom, to realize the cleaning of different areas, roller cleaning assembly 3 includes cleaning roller 31 in contact with ground and cleaning cloth strip 5 for adsorbing dust and sundries, cleaning roller 31 can be rotatably arranged, and cleaning cloth strip 5 is arranged on the surface of cleaning roller 31.

[0057] Further, drive arrangement 4 is arranged on roller cleaning assembly 3, and drive arrangement 4 is in transmission connection with cleaning roller 31, for driving cleaning roller 31 to rotate. At this time, in the process of rotating cleaning roller 31, cleaning cloth strip 5 can roll synchronously, because cleaning cloth strip 5 is arranged on the surface of cleaning roller 31, cleaning cloth strip 5 can contact ground and adsorb dust and sundries, and can remove sundries and dust on ground when rolling, to realize the cleaning function.

[0058] At the same time, under the driving of track module 2, roller cleaning assembly 3 can clean the ground at the bottom of sofa body 1 as a whole, and in the whole process, manual intervention is not needed, and the cleaning difficulty of sofa bottom is greatly reduced.

[0059] Further, refer toFigure 2 and Figure 3 In order to drive the cleaning roller 31 to displace on the sofa bottom, the track module 2 comprises a track body 21 and a displacement assembly 22, the track body 21 is fixedly arranged on the bottom of the sofa body 1, and the displacement assembly 22 is movably arranged on the track body 21, and the roller cleaning assembly 3 is arranged on the displacement assembly 22.

[0060] By adopting the above technical scheme, the track body 21 can provide displacement guidance for the displacement assembly 22, so that the displacement assembly 22 is more stable and accurate when moving, and on this basis, the displacement assembly 22 can provide displacement force for the roller cleaning assembly 3, thereby realizing the automatic moving effect, and the structure is more intelligent and fast.

[0061] Specifically, referring to Figure 2 In order to reduce the health dead angle during cleaning, when the track body 21 is arranged, the profile structure of the track body 21 can be changed to improve the cleaning area; optionally, in one embodiment, the track body 21 can have a back-shaped profile, and in another embodiment, the arrangement of the track body 21 can also have a snake-shaped profile; therefore, no matter which profile structure is adopted, the displacement range of the roller cleaning assembly 3 can be improved, and the bottom of the sofa body 1 can be covered to reduce the health dead angle.

[0062] It can be understood that the specific arrangement profile of the track body 21 can be arranged according to actual conditions, and the specific arrangement manner is not limited herein, as long as the arrangement manner that can effectively improve the cleaning area of the roller cleaning assembly 3 is adopted, it should be regarded as the same explanation range of the present scheme, and in the present embodiment, the track body 21 adopts a back-shaped profile as a display.

[0063] Further, referring to Figure 3 In order to realize displacement adjustment on the track body 21, the displacement assembly 22 comprises a displacement seat 221, a displacement motor 222 and a displacement gear 223. Among them, the displacement seat 221 is slidably arranged on the track body 21, usually, a sliding groove can be arranged on the track body 21, a pulley structure is rotatably installed on the displacement seat 221, the pulley is slidably installed in the sliding groove to realize the sliding cooperation of the two, and the specific sliding installation manner of the two is not limited herein.

[0064] On this basis, the track body 21 is also provided with a plurality of meshing teeth, which are sequentially and spaced apart along the length direction of the track body 21. It can be understood that the specific number of meshing teeth can be set according to the specific length of the track body 21, and is not specifically limited herein. On this basis, the displacement motor 222 is fixedly installed on the displacement seat 221, and the displacement gear 223 is fixedly installed on the output shaft of the displacement motor 222. The displacement gear 223 is opposite to the track body 21, and the displacement gear 223 is engaged with the meshing teeth on the track body 21.

[0065] Based on the above structure, by starting the displacement motor 222, the displacement gear 223 is rotated, and under the mutual action of the displacement gear 223 and the meshing teeth, the displacement seat 221 is pushed to move along the length direction of the track body 21. It can be understood that the displacement motor 222 can adopt a type of motor such as a servo motor which can output forward and reverse torque. At this time, by changing the torque output direction of the displacement motor 222, the displacement seat 221 can reciprocate on the track body 21, and the drum cleaning assembly 3 is arranged on the displacement seat 221, thereby driving the drum cleaning assembly 3 to clean the ground in all directions.

[0066] Referring to Figure 4 and Figure 5 To achieve the cleaning effect, the drum cleaning assembly 3 includes an elastic telescopic rod 32 and a first connecting bracket 33 in addition to the cleaning drum 31. The elastic telescopic rod 32 is vertically arranged, and the top end of the elastic telescopic rod 32 is fixedly connected with the displacement seat 221 of the track module 2.

[0067] In one embodiment, the elastic telescopic rod 32 mainly includes a rod body, a sleeve rod and a spring. The rod body and the sleeve rod are slidably sleeved with each other, and the spring is located between the rod body and the sleeve rod and connected with the rod body and the sleeve rod at both ends. At this time, under the action of the spring, the rod body and the sleeve rod can elastically expand and contract relative to each other. In other embodiments, the elastic telescopic rod 32 can also adopt other connection modes, which are only examples herein.

[0068] On this basis, the first connecting bracket 33 is arranged at the bottom end of the elastic telescopic rod 32, and the cleaning drum 31 is rotatably installed on the first connecting bracket 33. At this time, the elastic telescopic rod 32 can exert a elastic force on the first connecting bracket 33 to make the cleaning drum 31 press and stick to the ground, thereby stably attaching the cleaning cloth strip 5 to the ground, so that the cleaning cloth strip 5 can adsorb dust and debris on the ground.

[0069] Further, to drive the cleaning drum 31 to rotate to achieve the function of cleaning the ground. Referring to Figure 6In the embodiment, the driving device 4 comprises a driving motor 41, a first gear 42 and a second gear 43; wherein the driving device 4 can adopt a direct connection mode to realize transmission when connected with the cleaning roller 31, or can adopt an indirect mode to realize transmission.

[0070] For example, in one embodiment, the driving device 4 adopts a direct connection mode; wherein the driving motor 41 can be directly fixed on the elastic telescopic rod 32 or the first connecting support 33; at this time, the first gear 42 is fixed with the output shaft of the driving motor 41, and the second gear 43 is in transmission connection with the cleaning roller 31; here, the connection mode is that the second gear 43 and the cleaning roller 31 are fixed with each other, and the second gear 43 is engaged with the first gear 42.

[0071] Based on the above structure, by starting the driving motor 41, the driving motor 41 can drive the first gear 42 to rotate, and in turn drive the second gear 43 to rotate, and the second gear 43 drives the cleaning roller 31 to rotate, realizing the rotating cleaning function of the cleaning roller 31.

[0072] In one embodiment, the cleaning roller 31 is in a cylindrical structure, and the end of the cleaning roller 31 is provided with a rotating shaft, which is connected to the second gear 43, so as to drive the cleaning roller 31 to rotate.

[0073] In the embodiment, the cleaning roller 31 is in an elliptical cross-sectional profile; specifically, the cleaning roller 31 comprises a cylinder body, a driving gear is rotatably arranged in the cylinder body, and a rotating track is arranged on the surface of the cylinder body, and the cleaning cloth strip 5 is arranged on the outside of the rotating track, the inner surface of the rotating track is provided with an engagement recess, the engagement recess is engaged with the driving gear, and the second gear 43 is in transmission connection with the driving gear through a synchronous shaft; at this time, the second gear 43 can drive the rotating track to rotate through the synchronous shaft and the driving gear.

[0074] It can be understood that the rotating of the rotating track can also be regarded as the rotating of the cleaning roller 31, and when the cleaning roller 31 rotates, the cleaning cloth strip 5 can be driven to rotate; at this time, the cleaning roller 31 with an elliptical cross-sectional profile can improve the contact area with the ground compared with the cleaning roller 31 with a circular cross-sectional profile, and in turn can improve the cleaning area.

[0075] Further, based on the foregoing embodiment, in the case of a large amount of dust, the cleaning cloth strip 5 is easy to be worn out in advance, in order to further improve the cleaning ability, in the embodiment, the driving device 4 adopts an indirect transmission mode to connect the cleaning roller 31, and the roller cleaning assembly 3 further comprises a second connecting support 34 and a recovery roller 35.

[0076] Specifically, referring to Figure 5 and Figure 6The second connecting bracket 34 is arranged on the elastic telescopic rod 32 and is horizontally arranged. One end of the second connecting bracket 34 is connected with the elastic telescopic rod 32, and the other end of the second connecting bracket 34 extends away from the elastic telescopic rod 32. The recovery roller 35 is rotationally arranged on the second connecting bracket 34 and is used for recovering the dirty cleaning cloth strip 5.

[0077] In the embodiment, the driving device 4 is indirectly connected with the cleaning roller 31. The driving device 4 is arranged on the second connecting bracket 34 and is connected with the recovery roller 35. The driving device 4 is used for driving the recovery roller 35 to rotate. On this basis, the cleaning cloth strip 5 is wound on the cleaning roller 31. One end of the cleaning cloth strip 5 is fixedly connected with the recovery roller 35, and the other end of the cleaning cloth strip 5 is fixed on the cleaning roller 31. By driving the recovery roller 35 to rotate, the dirty cleaning cloth strip 5 is wound. At the same time, the winding force drags the cleaning roller 31 to rotate synchronously through the cleaning cloth strip 5. Therefore, the driving device 4 and the cleaning roller 31 are indirectly connected to realize transmission.

[0078] It can be understood that when the driving device 4 is arranged, the driving motor 41 can be first fixedly installed on the second connecting bracket 34. The first gear 42 is fixedly connected with the output shaft of the driving motor 41. The second gear 43 is fixedly connected with the recovery roller 35. Finally, the first gear 42 is engaged with the second gear 43.

[0079] Further, in order to facilitate replacement of the cleaning cloth strip 5, the cleaning roller 31 and the first connecting bracket 33 are detachably connected. In addition, the recovery roller 35 and the second connecting bracket 34 are detachably connected. Based on the above arrangement, the cleaning roller 31 and the recovery roller 35 can be detached. At the same time, the cleaning cloth strip 5 is arranged in a winding structure. Then, the cleaning cloth strip 5 is directly taken down, and a new cleaning cloth strip 5 is installed. The operation process is convenient and fast.

[0080] It can be understood that the cleaning roller 31 and the recovery roller 35 can be detachably connected by using a quick release structure. For example, a quick release block can be first rotationally installed at the end of the cleaning roller 31 and the recovery roller 35. In addition, a quick release slot is arranged on the first connecting bracket 33 and the second connecting bracket 34. The quick release block is assembled into the quick release slot by elastic buckle clamping to realize detachable connection of the cleaning roller 31 and the recovery roller 35. The specific dismounting mode of the cleaning roller 31 and the recovery roller 35 is not limited herein.

[0081] Optionally, in order to facilitate the replacement of the cleaning cloth strip 5, in one embodiment, an opening is formed on one side of the sofa body 1, and one end of the track body 21 extends to the outside of the sofa body 1 through the opening, so that the roller cleaning assembly 3 can be guided to move to the outside of the sofa body 1, thereby facilitating the disassembly and replacement of the cleaning cloth strip 5; in addition, a notch can also be arranged on the non- appearance side of the sofa body 1, and the track body 21 extends into the notch, and at this time, the cleaning cloth strip 5 can be replaced in the notch, and in this way, the sofa body 1 can be more beautiful when the cleaning cloth strip 5 is replaced.

[0082] Further, with reference to Figure 7 In order to make the cleaning action more intelligent, a timing control system is further included. Specifically, the timing control system includes a timer 6 and a control circuit 7.

[0083] The timer 6 has an output end, and the output end of the timer 6 is electrically connected to the receiving end of the control circuit 7. The user can set parameters such as cleaning frequency, cleaning time and cleaning duration through the timer 6, and at this time, the timer can generate start-stop signals based on the parameter settings.

[0084] At the same time, the sending end of the control circuit 7 is electrically connected to the track module 2 and the driving device 4 respectively. The timer 6 sends start-stop signals to the control circuit 7 at regular intervals. The control circuit 7 generates control signals in response to the start-stop signals, and the control signals are sent to the track module 2 and the driving device 4. The track module 2 and the driving device 4 respond to the control signals to perform start or pause actions, realizing the intelligent timing control function.

[0085] Further, the control circuit 7 can also be provided with an intelligent judgment function, such as pausing the rotation of the cleaning roller 31 or the recovery roller 35 when encountering excessive resistance (such as being stuck by foreign matter), and sending a prompt signal to prevent the motor from being damaged.

[0086] The embodiment has the following beneficial effects: in terms of cleaning efficiency, it is specially designed for the bottom of the sofa, can deeply clean the space under the sofa, especially the edges and corners of the sofa which are difficult to reach by traditional cleaning tools, and can also thoroughly clean the dust, hair and debris through the rolling of the cleaning roller 31, the cleaning effect is remarkable, and the overall cleaning quality of the ground is greatly improved.

[0087] In addition, under the action of the timing control system, the cleaning can be automatically started according to the set time, without the need for frequent manual operation, which is very convenient for cleaning arrangement of busy families or commercial places. The user can reasonably set the cleaning time according to the sofa use frequency and environmental dust condition, ensure that the bottom of the sofa is always in a relatively clean state, and reduce the breeding of bacteria and allergens.

[0088] Furthermore, from the perspective of protecting furniture and floor, it does not scratch the floor during cleaning like some traditional cleaning tools, and because it is designed for the bottom of the sofa, it avoids damage to the structure of the sofa that can be caused by frequent moving of the sofa, prolonging the service life of the sofa and the floor.

[0089] In summary, the conventional cleaning of the bottom of the sofa requires bending or squatting to operate a small cleaning tool, which is a tedious and laborious process. The scheme disclosed in the embodiments of the present application can reduce the labor intensity of the cleaning personnel, and the present application can automatically complete the cleaning work, making the cleaning work easy and simple.

[0090] In summary, the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent substitutions for some technical features; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A sofa, comprising a sofa body (1), wherein there is a gap between the sofa body (1) and the ground, characterized in that: Also includes: A track module (2) is arranged at the bottom of the sofa body (1) and located in the gap; A roller cleaning assembly (3) is arranged on the track module (2), and the track module (2) is used to drive the roller cleaning assembly (3) to move at the bottom of the sofa body (1); the roller cleaning assembly (3) includes a cleaning roller (31) in contact with the ground and a cleaning cloth strip (5) for absorbing dust and debris, the cleaning roller (31) is rotatable, and the cleaning cloth strip (5) is arranged on the surface of the cleaning roller (31); and a driving device (4), wherein the driving device (4) is arranged on the roller cleaning assembly (3), and the driving device (4) is transmission-connected to the cleaning roller (31) for driving the cleaning roller (31) to rotate.

2. The sofa according to claim 1, characterized in that: The roller cleaning assembly (3) further comprises: An elastic telescopic rod (32) connected to the track module (2); and a first connecting bracket (33) arranged on the elastic telescopic rod (32); the cleaning roller (31) is rotatably arranged on the first connecting bracket (33); the elastic telescopic rod (32) is used to apply elastic force to the first connecting bracket (33) so that the cleaning roller (31) is pressed against the ground.

3. The sofa according to claim 2, characterized in that: The roller cleaning assembly (3) further comprises: A second connecting bracket (34) is arranged on the elastic telescopic rod (32), and the driving device (4) is arranged on the second connecting bracket (34); and a recovery roller (35) rotatably mounted on the second connecting bracket (34), wherein the driving device (4) is connected to the recovery roller (35) and is used to drive the recovery roller (35) to rotate; The cleaning cloth strip (5) is wound around the cleaning roller (31), and one end of the cleaning cloth strip (5) is fixedly connected to the recycling roller (35). The recycling roller (35) is used to reel in the dirty cleaning cloth strip (5) and simultaneously drag the cleaning roller (31) to rotate synchronously via the cleaning cloth strip (5).

4. The sofa according to claim 1, characterized in that: The driving device (4) comprises: a drive motor (41); A first gear (42) is fixedly connected to the output shaft of the driving motor (41); and a second gear (43) meshing with the first gear (42), wherein the second gear (43) is in transmission connection with the cleaning roller (31).

5. The sofa according to claim 1, characterized in that: The track module (2) comprises: A track body (21) is fixedly arranged at the bottom of the sofa body (1); and a displacement assembly (22) movably arranged on the track body (21); and the roller cleaning assembly (3) is arranged on the displacement assembly (22).

6. The sofa according to claim 5, characterized in that: The track body (21) has a circular outline.

7. The sofa according to claim 5, characterized in that: The displacement assembly (22) comprises: A displacement seat (221) is slidably arranged on the track body (21), and the track body (21) has a plurality of meshing teeth, and the plurality of meshing teeth are sequentially spaced along the length direction of the track body (21); A displacement motor (222) is disposed on the displacement seat (221); and a displacement gear (223) which is arranged on the output shaft of the displacement motor (222) and meshes with the meshing teeth on the track body (21).

8. The sofa according to claim 1, characterized in that: Also included is a timing control system, the timing control system comprising: Timer (6); and a control circuit (7), wherein the timer (6) is electrically connected to a receiving end of the control circuit (7), and a transmitting end of the control circuit (7) is electrically connected to the track module (2) and the driving device (4), respectively. The timer (6) is used to regularly send a start / stop signal to the control circuit (7), and the control circuit (7) responds to the start / stop signal and generates a control signal, which is sent to the track module (2) and the driving device (4) to control the start / stop of the track module (2) and the driving device (4).

9. The sofa according to claim 2, characterized in that: The cleaning roller (31) is detachably connected to the first connecting bracket (33).

10. The sofa according to claim 3, characterized in that: The recovery drum (35) is detachably connected to the second connecting bracket (34).

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