Dust removal sofa

Abstract

The utility model relates to the technical field of sofa furniture, in particular to a dust removal sofa, which is characterized by comprising a sofa body provided with a crack part, and further comprising an elastic dust absorption layer arranged on the sofa body and covering the crack part, the elastic dust absorption layer is used for retaining dust, and a dust removal layer arranged on the elastic dust absorption layer and covering the crack part. The elastic dust absorption layer is arranged on the sofa body, the jacking mechanism is arranged on the sofa body and located below the elastic dust absorption layer, the jacking mechanism is used for jacking up the elastic dust absorption layer from bottom to top so that the elastic dust absorption layer can stretch out of the top opening of the crack part, and the problem that dust in the cracks of the sofa is difficult to clean is solved.

Description

Technical Field

[0001] This utility model relates to the field of sofa furniture technology, and in particular to a dust-removing sofa. Background Technology

[0002] Sofas are common furniture in homes and offices. They are not only places to rest and relax, but also an important part of interior decoration. According to design style, they can be divided into modern sofas, classic sofas, retro sofas, Nordic sofas, and American sofas. Based on the different needs of users, more types of sofa products are also being introduced.

[0003] Existing sofas typically include a seat frame, armrests, and a backrest. The armrests and backrest are respectively set on the seat frame, and a seat cushion is also set on the seat frame. The seat cushion can provide flexible support to improve the comfort of the sofa.

[0004] However, in contemporary society, the pursuit of sofa products is not limited to external aesthetics. More consumers are considering the ease of use of the products, especially for sofas. Because sofas have a long lifespan, consumers are more particular about the ease of cleaning. However, because sofas are used frequently, dust easily falls into the crevices of the sofa, and this dust is difficult to clean. Therefore, it is necessary to improve the existing technology.

[0005] The above information is provided as background information only to aid in understanding this disclosure and does not constitute an assertion or admission that any of the above content can be used as prior art relative to this disclosure. Utility Model Content

[0006] This invention provides a dust-removing sofa to solve the problem of difficult-to-clean dust from crevices in existing technologies.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A dust-removing sofa includes a sofa body with a seam portion, and further includes:

[0009] An elastic dust-absorbing layer is provided on the sofa body and covers the gaps; the elastic dust-absorbing layer is used to retain dust.

[0010] A lifting mechanism is provided on the sofa body and located below the elastic dust-absorbing layer. The lifting mechanism is used to lift the elastic dust-absorbing layer from bottom to top so that the elastic dust-absorbing layer extends out from the top opening of the seam.

[0011] Preferably, the sofa body includes a seat cushion and armrests, the seam includes a first seam segment formed between the seat cushion and the armrests, and the lifting mechanism includes a first lifting component for lifting the elastic dust-absorbing layer from the first seam segment.

[0012] Preferably, the first lifting component includes:

[0013] A first driving element is disposed on the sofa body;

[0014] The first rotating frame is rotatably mounted on one side of the sofa body and connected to the first driving element. The first driving element is used to drive the first rotating frame to swing up and down reciprocally.

[0015] And a first lifting piece, disposed on the free side of the first rotating frame, the first lifting piece being used to lift the elastic dust-absorbing layer located below the first slit section upward.

[0016] Preferably, a first shaft assembly is fixedly mounted on the sofa body, and a first rotating shaft is provided on one side of the first rotating frame. The first rotating shaft is rotatably mounted on the first shaft assembly and is connected to the first driving element in a transmission manner.

[0017] Preferably, the first lifting plate is rotatably connected to the free side of the first rotating frame.

[0018] Preferably, the sofa body includes seat cushions, and the seat cushions are arranged adjacently. The seam portion includes a second seam segment located between two adjacent seat cushions. The lifting mechanism includes a second lifting component for lifting the elastic dust-absorbing layer from the second seam segment.

[0019] Preferably, the second lifting component includes:

[0020] The second rotating frame is rotatably connected to the sofa body on one side;

[0021] The third rotating frame is rotatably connected to the sofa body on one side, and the free side of the second rotating frame is rotatably connected to the free side of the second rotating frame. The second rotating frame and / or the third rotating frame have telescopic components for adjusting length.

[0022] The second lifting plate is connected to the free side of the second rotating frame and the free side of the third rotating frame;

[0023] And a second driving element for driving the second rotating frame and the third rotating frame to swing up and down reciprocally, so that the second lifting piece lifts the elastic dust-absorbing layer located below the second slit section upward.

[0024] Preferably, the second lifting sheet includes:

[0025] The second piece abuts against and engages with the elastic dust-absorbing layer;

[0026] And a second lifting shaft, a second piece is disposed on the second lifting shaft, and the second lifting shaft, the free side of the second rotating frame and the free side of the third rotating frame are coaxially connected.

[0027] Preferably, the second driving element is a second driving motor. When there is one second driving motor, the second driving motor is connected to the second rotating frame or the third rotating frame in a transmission connection. When there are two second driving motors, the two second driving motors are respectively connected to the second rotating frame and the third rotating frame in a transmission connection.

[0028] Preferably, the elastic dust-absorbing layer is an elastic fabric with extensibility.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] The dust-removing sofa provided by this utility model can lift the elastic dust-absorbing layer covering the gap upwards by activating the lifting mechanism when it is necessary to clean the gap. This causes the elastic dust-absorbing layer to stretch and deform and extend out through the top opening of the gap. At this time, most of the elastic dust-absorbing layer can be exposed, and dust and fine matter can be exposed together for easy cleaning. The problem of difficult cleaning of the gap is solved.

[0031] This invention has other features and advantages that will be apparent from or will be set forth in detail in the accompanying drawings and the following detailed description, which together serve to explain the particular principles of this invention. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the structure of the dust-removing sofa provided in this embodiment of the present invention in its normal state;

[0034] Figure 2 This is a schematic diagram of the dust-removing sofa in the cleaning state provided in this embodiment of the utility model.

[0035] Figure label:

[0036] 1. Gap section; 11. First gap section; 12. Second gap section; 2. Seat frame; 3. Seat cushion; 4. Armrest; 5. Backrest; 6. Elastic dust-absorbing layer; 7. First lifting assembly; 71. First driving element; 72. First rotating frame; 73. First lifting piece; 731. First piece body; 732. First lifting shaft; 74. First rotating shaft; 75. First shaft assembly; 8. Second lifting assembly; 81. Second rotating frame; 82. Third rotating frame; 83. Second lifting piece; 831. Second piece body; 832. Second lifting shaft; 84. Second driving element; 85. Second rotating shaft; 86. Second shaft assembly. Detailed Implementation

[0037] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0038] In the description of this utility model, it should be understood that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component that is centrally positioned therein. When a component is considered to be "set" on another component, it can be directly set on the other component or there may be a component that is centrally positioned therein.

[0039] Furthermore, terms such as "long," "short," "inner," and "outer" indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings. They are used only for the convenience of describing this utility model and do not indicate or imply that the device or component referred to must have this specific orientation or operate in a specific orientational configuration. Therefore, they should not be construed as limitations of this utility model.

[0040] The following is in conjunction with the appendix Figure 1-2 The technical solution of this utility model will be further illustrated through specific implementation methods.

[0041] Please refer to Figure 1 and Figure 2A dust-removing sofa includes a sofa body with a seam 1. In this embodiment, the sofa body mainly includes a seat frame 2, a seat cushion 3, an armrest 4, and a backrest 5. The armrest 4 and the backrest 5 are fixedly installed on the seat frame 2. At the same time, the seat cushion 3 is also set on the seat frame 2. A seam 1 is formed at the periphery of the seat cushion 3. The upper and lower sides of the seam 1 are open. Under long-term use of the sofa body, dust easily accumulates in the seam 1.

[0042] To clean the dust within the aforementioned crevices 1, the cleaning sofa also includes an elastic dust-absorbing layer 6 and a lifting mechanism. Specifically, the elastic dust-absorbing layer 6 is fixedly installed on the seat frame 2 of the sofa body. Its size and area are larger than the opening area of ​​the crevices 1, and the elastic dust-absorbing layer 6 extends along the length of the crevices 1, thus covering the crevices 1. Based on this configuration, dust falling into the crevices 1 can fall into the elastic dust-absorbing layer 6, where it is retained.

[0043] Furthermore, the elastic dust-absorbing layer 6 can be a structure with dust-adsorbing capabilities. For example, in this embodiment, the surface of the elastic dust-absorbing layer 6 is provided with a rounded pile layer, which has good dust adsorption function. The specific arrangement of the pile layer is not limited here. At the same time, the elastic dust-absorbing layer 6 also needs to have elastic extensibility so that it can be elastically deformed to cooperate with the lifting mechanism. In this embodiment, the elastic dust-absorbing layer 6 is an elastic fabric with extensibility. The elastic fabric has good elasticity and can meet the elastic use requirements of the elastic dust-absorbing layer 6 and meet the actual working conditions.

[0044] Continue to refer to Figure 1 and Figure 2 The lifting mechanism is located in the sofa body. In this embodiment, the lifting mechanism is located inside the seat frame 2 and below the elastic dust-absorbing layer 6 and the seat cushion 3. The lifting mechanism has the ability to move up and down. One side of the lifting mechanism is opposite to the elastic dust-absorbing layer 6. During the process of the lifting mechanism rising, it can lift the elastic dust-absorbing layer 6 from bottom to top so that the elastic dust-absorbing layer 6 extends out from the top opening of the gap 1.

[0045] By adopting the above technical solution, the problem of difficult cleaning of the crevice 1 is addressed. By driving the elastic dust-absorbing layer 6 to stretch, the elastic dust-absorbing layer 6 can extend out from the top opening of the crevice 1. At this time, it is equivalent to the elastic dust-absorbing layer 6 exposing the dust, allowing the user to clean the exposed part. After cleaning, the lifting mechanism is activated again and reset. Under the elastic force of the elastic dust-absorbing layer 6 itself, the elastic dust-absorbing layer 6 also resets, facilitating the next cleaning. The operation process is simple and quick, maintaining the overall aesthetics of the sofa and facilitating a comprehensive cleaning and improvement of the sofa.

[0046] Furthermore, the sofa body comes in various models and designs. Common sofa types include single-seat sofas and multi-seat sofas. The outline and number of the gap 1 formed by different sofa types are also different. For example, in one embodiment, based on a single-seat sofa, the number of seat cushions 3 is usually one. At this time, the gap 1 on the sofa body is mainly formed between the seat cushion 3 and the armrest 4. For ease of understanding, the gap 1 includes a first gap segment 11 formed between the seat cushion 3 and the armrest 4. Since the structural space around the armrest 4 is relatively compact, the lifting mechanism specifically includes a first lifting component 7 for lifting the elastic dust-absorbing layer 6 from the first gap segment 11. The dust displaced by the first lifting component 7 can be cleaned.

[0047] Continue to refer to Figure 1 and Figure 2 In this embodiment, the first lifting assembly 7 includes a first driving element 71, a first rotating frame 72, and a first lifting plate 73. The first driving element 71 is disposed in the sofa body. Specifically, the first driving element 71 is a first driving motor, which is fixedly installed inside the seat frame 2 and can output stable torque power.

[0048] Meanwhile, one side of the first rotating frame 72 is rotatably mounted on the sofa body and connected to the first driving element 71, which drives the first rotating frame 72 to swing up and down. In this embodiment, the first rotating frame 72 mainly includes two parallel support arms. One end of the support arm is close to the first seam section 11, while the other end is away from the first seam section 11. The end of the support arm away from the first seam section 11 is rotatably mounted on the seat frame 2 of the sofa body. For ease of description, the movable end of the support arm is defined as the free end. Based on this, the side of the first rotating frame 72 with the free end of the support arm is defined as the free side.

[0049] Furthermore, in this embodiment, to enable the first rotating frame 72 to reciprocate stably up and down, a first shaft assembly 75 is fixedly installed on the seat frame 2 of the sofa body. Two first shaft assemblies 75 are arranged opposite each other and are sleeve-shaped. Simultaneously, one side of the first rotating frame 72 has a first rotating shaft 74 located at the end of the support arm away from the first gap section 11. Both ends of the first rotating shaft 74 are fixed to the two support arms respectively, and the end of the first rotating shaft 74 is rotatably mounted on the first shaft assembly 75. Typically, a bearing can be installed between the first rotating shaft 74 and the first shaft assembly 75 to achieve rotational engagement between the first rotating shaft 74 and the first shaft assembly 75.

[0050] Based on the above settings, under the action of the first shaft assembly 75, the first rotating frame 72 can be rotated and guided, thereby enabling the first rotating frame 72 to be stably rotated and mounted on the seat frame 2.

[0051] Meanwhile, the first rotating shaft 74 is connected to the first driving element 71. It can be understood that the first driving element 71 and the first rotating shaft 74 can be directly or indirectly connected. When they are directly connected, a coupling can be installed between the output shaft of the first drive motor and the first rotating shaft 74 to achieve direct power transmission. Alternatively, when they are indirectly connected, a gear set can be installed between the output shaft of the first drive motor and the first rotating shaft 74, which can also achieve power transmission. No specific connection method between the first rotating shaft 74 and the first driving element 71 is limited here. At this time, by activating the first driving element 71, the first driving element 71 can drive the first rotating shaft 74 to rotate, thereby causing the first rotating frame 72 to swing up and down.

[0052] Based on this, the first lifting piece 73 is disposed on the free side of the first rotating frame 72. Specifically, the first lifting piece 73 includes a first piece body 731 and a first lifting shaft 732. The first piece body 731 is disposed vertically, and the first lifting shaft 732 is fixedly disposed at the bottom of the first lifting piece 73 and connected to the free side of the first rotating frame 72. At the same time, the top of the first lifting piece 73 faces the elastic dust-absorbing layer 6 located below the first slit section 11, and the length direction of the first lifting piece 73 is consistent with the extension direction of the first slit section 11.

[0053] Based on the above settings, during the process of the first rotating frame 72 flipping from bottom to top, the first lifting piece 73 can lift the elastic dust-absorbing layer 6 located below the first slit section 11 upwards, which is quick and efficient and easy to clean.

[0054] Furthermore, the first lifting plate 73 can be rotatably connected to the free side of the first rotating frame 72. Specifically, a hinge seat can be provided at the free end of the support arm, and the first lifting shaft 732 can be hinged to the hinge seat to achieve a rotatable connection.

[0055] The function of the first lifting piece 73 is as follows: Since the movement of the first rotating frame 72 is close to a circular swinging motion, the first lifting piece 73 can obtain more degrees of freedom of movement by rotating during its setting, thereby adapting to the angle changes of the circular swinging motion and better inserting into the first gap section 11. For example, during the insertion into the first gap section 11, initially, the top of the first lifting piece 73 rests against the inner surface of the handrail 4, and the surface of the handrail 4 can guide the first lifting piece 73. As the circular motion proceeds, the first lifting piece 73 gradually inserts into the first gap section 11, and as the depth of travel increases, its lifting angle in the first gap section 11 is adjusted, so that it gradually adjusts from an inclined state to an upright state, thereby better passing through the narrow space of the first gap section 11 and reducing the possibility of the first lifting piece 73 getting stuck in the first gap section 11. Finally, the first rotating frame 72 can rotate to a horizontal state so that the first lifting piece 73 can lift the elastic dust-absorbing layer 6 to the maximum extent.

[0056] It is understandable that in practical applications, the first lifting component 7 can also adopt an integrated structure combining a cylinder and a first lifting plate 73, and the cylinder can realize reciprocating output motion, which can also make the first lifting component 7 lift the elastic dust-absorbing layer 6. The specific setting structure of the first lifting component 7 is not limited here. As long as any structure that can lift the elastic dust-absorbing layer 6 is adopted, it should be regarded as an equivalent replacement means of this application.

[0057] Furthermore, in another embodiment, the sofa body is usually equipped with multiple seats, and the number of seat cushions 3 is also configured to be multiple adjacent to each other. For example, the number of seat cushions 3 shown in this embodiment is two. In this case, in addition to the first gap section 11, the gap section 1 also includes a second gap section 12 located between two adjacent seat cushions 3. In order to clean the second gap section 12, a structure similar to the first lifting component 7 can be adopted. However, the difference between the second gap section 12 and the first gap section 11 is that the second gap section 12 has a larger structural space and there is no armrest 4 to guide the first lifting piece 73. Therefore, there is a problem with the lifting accuracy. If the lifting piece cannot be aligned with the second gap section 12, the lifting action will not be able to proceed smoothly.

[0058] Based on this, continue to refer to Figure 1 and Figure 2 The lifting mechanism also includes a second lifting assembly 8 for lifting the elastic dust-absorbing layer 6 from the second slit section 12. Specifically, the second lifting assembly 8 includes a second rotating frame 81, a third rotating frame 82, a second lifting piece 83, and a second driving element 84.

[0059] The second rotating frame 81 and the third rotating frame 82 have similar structures to the first rotating frame 72, and all three include two parallel support arms. At the same time, a second rotating shaft 85 is fixedly provided on one side of the second rotating frame 81 and the third rotating frame 82, and a second shaft assembly 86 is fixedly installed on the seat frame 2. The second rotating shaft 85 is rotatably disposed in the second shaft assembly 86 to realize the rotational installation of the second rotating frame 81 and the third rotating frame 82.

[0060] Based on this, one side of the second rotating frame 81 is rotatably connected to the sofa body, and the other side forms a free side, and the free side of the second rotating frame 81 is located below the second gap section 12; in addition, one side of the third rotating frame 82 is rotatably connected to the sofa body, and the other side also forms a free side, and the free side of the third rotating frame 82 is located below the second gap section 12.

[0061] Based on this, the free side of the second rotating frame 81 is rotatably connected to the free side of the third rotating frame 82, and the second rotating frame 81 and / or the third rotating frame 82 have telescopic components (not shown in the figure) for adjusting length. The telescopic components can adjust the overall length of the second rotating frame 81 and the third rotating frame 82 so that the second rotating frame 81 and the third rotating frame 82 meet the requirements of the degree of freedom of movement. Based on the above settings, the free side of the second rotating frame 81 and the free side of the third rotating frame 82 can be moved up and down by driving the second rotating frame 81 or the third rotating frame 82 to move closer to or further away from the second gap section 12.

[0062] It should be explained that the telescopic component can use two telescopic sleeves to achieve telescopic movement. The support arm can be broken at the middle position, and the two telescopic sleeves can be fixedly installed on the two sections of the support arm respectively. The two telescopic sleeves slide and engage with each other. Under the mutual sliding action of the telescopic sleeves, the second rotating frame 81 or the third rotating frame 82 can achieve telescopic adjustment movement to obtain more degrees of freedom of movement. In this way, the free side of the second rotating frame 81 and the free side of the third rotating frame 82 can move up and down.

[0063] Based on this, the second lifting piece 83 is connected to the free side of the second rotating frame 81 and the free side of the third rotating frame 82. The second lifting piece 83 is used to lift the elastic dust-absorbing layer 6 at the second gap section 12. During this process, because the second lifting piece 83 is supported by both sides of the second rotating frame 81 and the third rotating frame 82, the second lifting piece 83 is not easy to deflect when moving, and the lifting accuracy can be guaranteed.

[0064] Furthermore, the second lifting piece 83 includes a second piece 831 and a second lifting shaft 832. The second piece 831 is vertically oriented, and the second lifting shaft 832 is fixedly connected to the bottom of the second piece 831. Simultaneously, hinge seats are provided on the free sides of both the second rotating frame 81 and the third rotating frame 82, and the second lifting shaft 832 is hinged to both the hinge seats of the second rotating frame 81 and the third rotating frame 82. At this point, the second lifting shaft 832, the free side of the second rotating frame 81, and the free side of the third rotating frame 82 are coaxially connected. The top of the second piece 831 faces the elastic dust-absorbing layer 6 of the second slit section 12 and abuts against the elastic dust-absorbing layer 6.

[0065] Based on the above technical solution, the second lifting plate 83 can swing and adjust more freely than the second rotating frame 81 and the third rotating frame 82, so that when the second lifting plate 83 is inserted into the second slit section 12, it can move along the extension direction of the second slit section 12 to achieve a precise lifting action.

[0066] Furthermore, the second driving element 84 is used to drive the second rotating frame 81 and the third rotating frame 82 to swing up and down. The second driving element 84 plays the role of controlling the second rotating frame 81 and the third rotating frame 82 so that the second lifting piece 83 lifts the elastic dust-absorbing layer 6 located below the second gap section 12 upward.

[0067] Specifically, in this embodiment, the second driving element 84 is a second driving motor. There are at least two ways to set the second driving motor. In one embodiment, the number of second driving motors is set to one. When the number of second driving motors is one, the second driving motor can be selectively connected to the second rotating frame 81 or the third rotating frame 82. For example, the second driving motor is connected to the second rotating shaft 85. The connection method between the second driving motor and the second rotating shaft 85 is similar to the connection method between the first driving motor and the first rotating shaft 74, and will not be described in detail here. At this time, by starting the second driving element 84, the second rotating frame 81 can be driven to rotate through the second rotating shaft 85, which in turn indirectly drives the third rotating frame 82 to rotate, and finally realizes the lifting displacement action of the second lifting piece 83. The reverse is also true. That is to say, no matter whether the second motor is connected to either the second rotating frame 81 or the third rotating frame 82, when either of the two rotating frames swings, it will drive the other rotating frame to swing synchronously.

[0068] In another embodiment, the number of second drive motors is set to two. When there are two second drive motors, the two second drive motors are respectively connected to the second rotating frame 81 and the third rotating frame 82. At this time, by starting and stopping the two second drive motors simultaneously, the second rotating frame 81 and the third rotating frame 82 are respectively driven. Compared with the previous single motor method, the dual motor architecture can obtain greater driving force, the structural operation is more stable, the motor load is lower, and the service life is longer. In this embodiment, the number of second drive motors is set to two as an example.

[0069] The dust-absorbing sofa disclosed in this utility model has the following beneficial effects: by setting an elastic dust-absorbing layer 6, it can absorb dust that enters the crevices 1. Under the action of the lifting mechanism, the elastic dust-absorbing layer 6 can be lifted up and exposed, so as to facilitate the cleaning of dust and dirt. Users can perform a comprehensive cleaning and improvement of the sofa, extend the service life of the product, protect the health of family members, and at the same time ensure that the aesthetics of the sofa are not damaged by the accumulation of dust. It can also be applied to more scenarios, such as pet-owning families where pet hair is easy to accumulate, or scenarios where the sofa is placed in a public space.

[0070] Therefore, the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A dust-removing sofa, comprising a sofa body having a seam (1) thereon, characterized in that, Also includes: An elastic dust-absorbing layer (6) is provided on the sofa body and covers the gap (1). The elastic dust-absorbing layer (6) is used to retain dust. A lifting mechanism is provided on the sofa body and located below the elastic dust-absorbing layer (6). The lifting mechanism is used to lift the elastic dust-absorbing layer (6) from bottom to top so that the elastic dust-absorbing layer (6) extends out from the top opening of the slit (1).

2. The dust-removing sofa according to claim 1, characterized in that, The sofa body includes a seat cushion (3) and an armrest (4). The seam portion (1) includes a first seam segment (11) formed between the seat cushion (3) and the armrest (4). The lifting mechanism includes a first lifting component (7) for lifting the elastic dust-absorbing layer (6) from the first seam segment (11).

3. The dust-removing sofa according to claim 2, characterized in that, The first lifting component (7) includes: A first driving element (71) is disposed on the sofa body; The first rotating frame (72) is rotatably mounted on the sofa body on one side and connected to the first driving element (71). The first driving element (71) is used to drive the first rotating frame (72) to swing up and down. And a first lifting piece (73) is disposed on the free side of the first rotating frame (72), the first lifting piece (73) is used to lift the elastic dust-absorbing layer (6) located below the first slit section (11) upward.

4. The dust-removing sofa according to claim 3, characterized in that, A first shaft assembly (75) is fixedly installed on the sofa body. A first rotating shaft (74) is provided on one side of the first rotating frame (72). The first rotating shaft (74) is rotatably mounted on the first shaft assembly (75). The first rotating shaft (74) is connected to the first driving element (71) in a transmission connection.

5. The dust-removing sofa according to claim 3 or 4, characterized in that, The first lifting plate (73) is rotatably connected to the free side of the first rotating frame (72).

6. The dust-removing sofa according to claim 1, characterized in that, The sofa body includes a cushion (3), and the cushions (3) are arranged adjacently. The seam portion (1) includes a second seam segment (12) located between two adjacent cushions (3). The lifting mechanism includes a second lifting component (8) for lifting the elastic dust-absorbing layer (6) from the second seam segment (12).

7. The dust-removing sofa according to claim 6, characterized in that, The second lifting component (8) includes: The second rotating frame (81) is rotatably connected to the sofa body on one side; The third rotating frame (82) is rotatably connected to the sofa body on one side, and the free side of the second rotating frame (81) is rotatably connected to the free side of the second rotating frame (81). The second rotating frame (81) and / or the third rotating frame (82) have telescopic components for adjusting length. The second lifting plate (83) is connected to the free side of the second rotating frame (81) and the free side of the third rotating frame (82); And a second driving element (84) for driving the second rotating frame (81) and the third rotating frame (82) to swing up and down, so that the second lifting piece (83) lifts the elastic dust-absorbing layer (6) located below the second slit section (12) upward.

8. The dust-removing sofa according to claim 7, characterized in that, The second top-lifting sheet (83) includes: The second piece (831) abuts against the elastic dust-absorbing layer (6); The second lifting shaft (832) and the second piece (831) are disposed on the second lifting shaft (832). The second lifting shaft (832), the free side of the second rotating frame (81) and the free side of the third rotating frame (82) are coaxially connected.

9. The dust-removing sofa according to claim 7 or 8, characterized in that, The second driving element (84) is a second driving motor. When there is one second driving motor, the second driving motor is connected to the second rotating frame (81) or the third rotating frame (82) in a transmission connection. When there are two second driving motors, the two second driving motors are connected to the second rotating frame (81) and the third rotating frame (82) respectively in a transmission connection.

10. The dust-removing sofa according to claim 1, characterized in that, The elastic dust-absorbing layer (6) is an elastic fabric with stretchability.

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