Durable leather sofa with expandable usable area
By incorporating heating pads, leather rebound cushions, space cotton, and sliding rail limiting devices into genuine leather sofas, the shortcomings of genuine leather sofas in terms of spatial adaptability and ease of use have been resolved, thereby expanding the sofa's functionality and enhancing its comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO FUHUA FURNITURE MFG CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-04-10
AI Technical Summary
Existing genuine leather sofas have shortcomings in terms of spatial adaptability, structural durability, and ease of use. They are limited in functionality and cannot be flexibly expanded, resulting in limited use in small spaces.
A durable genuine leather sofa with expandable usable area was designed. The sofa's expandable function is achieved by setting a heating pad, genuine leather rebound cushion, space cotton, sliding rail and limiting device on the main body of the sofa. The heating temperature and mite removal function are controlled by a controller.
The sofa's comfort and practicality have been improved, and the user experience has been enhanced through heating and mite removal functions. The sliding rails and limiting devices facilitate the expansion and storage of the sofa, increasing its flexibility in small spaces.
Smart Images

Figure CN224099033U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to sofa technical field more specifically, it relates to a durable leather sofa of expandable use area. BACKGROUND
[0002] With the upgrading of high-end home consumption, as the core furniture in the living room, the functional and durability demand of leather sofa continues to grow, but the user satisfaction survey shows that the existing product has significant defects in space adaptability, structural durability and use convenience.
[0003] At present, the filling of its sofa is usually only sponge, the comfort degree is not high enough, reduces the user sensory experience, and its structure is fixed, does not have the purpose of spontaneous heating, makes the functional singleness of sofa use, the traditional sofa cannot be flexibly expanded, leads to small space use limited, reduces the practicality of leather sofa. UTILITY MODEL CONTENT
[0004] (I) the technical problem solved
[0005] In view of the problems in the prior art, the utility model provides a durable leather sofa of expandable use area to solve the technical problems mentioned in the background art.
[0006] (II) technical scheme
[0007] To achieve the above object, the utility model provides the following technical scheme: a durable leather sofa of expandable use area, including sofa main body, the sofa main body includes the base, the base is equipped with heating pad, the outside of heating pad is surrounded with fire -retardant layer, one side of heating pad is equipped with the conductive wire, the upper surface of fire -retardant layer is connected with leather spring seat pad, the inside of leather spring seat pad is filled with space cotton, the lower of sofa main body is equipped with the first sliding rail against symmetry, the first sliding rail is equipped with the first sliding block, the first sliding block is equipped with the support plate, the support plate is equipped with the second sliding rail against symmetry, the second sliding rail is equipped with the second sliding block, and the second sliding block is equipped with the extension sofa between the second sliding rail and the second sliding block is equipped with the limiting device.
[0008] The utility model further sets up, space cotton inside is equipped with acarid removal bag, can drive away the mite in sofa, prolongs its leather spring seat pad's use time.
[0009] The utility model further sets up, one side of heating pad is equipped with the controller electric connection, the controller sets up in the armrest of sofa main body, controls the heating time of heating pad.
[0010] The utility model further sets up, the second sliding rail is provided with connecting groove, the second sliding block between same support plate is equipped with connecting plate, it is convenient for synchronous movement second sliding block of same side.
[0011] The utility model further sets up, the limiting device includes spacing block, the connecting plate is equipped with spacing rod in sliding, spacing hole that spacing block is provided with cooperation with spacing rod, one end of spacing rod is equipped with spacing handle, through the cooperation of spacing rod and spacing hole, the position of fixed connecting plate and extension sofa.
[0012] The utility model further sets up, be equipped with spacing groove on the connecting plate, the spacing plate is established in spacing groove of spacing rod, be equipped with spacing spring between spacing plate and spacing groove, so that spacing rod has the elastic force that continuously and stably points to spacing hole.
[0013] The utility model further sets up, the bottom of support plate is equipped with support wheel, it is convenient for moving support plate and extension sofa.
[0014] The utility model further sets up, one side of extension sofa is equipped with handle, it is convenient for pulling extension sofa.
[0015] (Three) beneficial effects
[0016] Compared with the prior art, the utility model provides a durable leather sofa with expandable use area, which has the following beneficial effects:
[0017] 1. By setting a heating structure on the cushion main body, the sofa main body has a heating function. By setting space cotton and mite removal bags inside the leather rebound cushion, the softness and comfort of the sofa are improved.
[0018] 2. By cooperating the first sliding rail and the first sliding block, the second sliding rail and the second sliding block, and fixing by the limiting device, the extension sofa is easily stored and unfolded, the convenience of using the extension sofa is improved, and the practicality of the sofa main body is improved.
[0019] 3. By cooperating the spacing rod and the spacing hole, the connecting plate and the spacing block are easily connected and fixed, and the height of the extension sofa is easily fixed, so that the height of the cushion of the sofa main body is leveled, and the convenience of using the extension sofa is improved. DRAWINGS
[0020] Figure 1 It is the whole structure schematic drawing of durable leather sofa with expandable use area in the utility model;
[0021] Figure 2 It is the cooperation structure schematic drawing of heating pad, flame-retardant layer, conductive wire, leather rebound cushion and space cotton in the utility model;
[0022] Figure 3 It is the cooperation structure schematic view of first slide rail, first sliding block, support plate and extension sofa in the utility model;
[0023] Figure 4 It is the cooperation structure schematic view of second slide rail, second sliding block, connecting plate, limiting block and extension sofa in the utility model;
[0024] Figure 5 It is the section structure schematic view of connecting plate in the utility model.
[0025] In the drawing: 1, sofa main body;2, base;3, heating pad;4, flame retardant layer;5, conductive wire;6, leather rebound cushion;7, space cotton;8, first slide rail;9, first sliding block;10, support plate;11, second slide rail;12, second sliding block;13, extension sofa;14, acarid removal bag;15, controller;16, connecting groove;17, connecting plate;18, limiting block;19, limiting rod;20, limiting hole;21, limiting handle;22, limiting groove;23, limiting plate;24, limiting spring;25, supporting wheel;26, handle. DETAILED DESCRIPTION
[0026] It should be noted that the embodiments and features in the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with embodiments.
[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.
[0028] In the present application, unless otherwise specified, the directions used such as "up, down" are generally with respect to the directions shown in the drawings, or with respect to the vertical, perpendicular or gravitational direction. Similarly, for the convenience of understanding and description, "left, right" is generally with respect to the left and right shown in the drawings; "inner, outer" refers to the inner and outer with respect to the contour of each component itself, but the above directional words are not used to limit the present application.
[0029] Please refer to Figures 1-5The utility model provides a kind of durable leather sofa of expandable usable area, including sofa main body 1, sofa main body 1 includes base 2, heating pad 3 is equipped on base 2, the outside of heating pad 3 is surrounded with fire -retardant layer 4, the side of heating pad 3 is equipped with conductive wire 5, the upper surface of fire -retardant layer 4 is connected with leather rebound cushion 6, the inside of leather rebound cushion 6 is filled with space cotton 7, the lower of sofa main body 1 is symmetrically equipped with first slide rail 8, first slide rail 8 is equipped with first sliding block 9, first sliding block 9 is equipped with support plate 10, support plate 10 is symmetrically equipped with second slide rail 11, second slide rail 11 is equipped with second sliding block 12, second sliding block 12 is equipped with extension sofa 13 between, limit device is equipped between second slide rail 11 and second sliding block 12, space cotton 7 is equipped with acarid removal bag 14 inside, the side of heating pad 3 is electrically connected with controller 15, controller 15 is arranged on the armrest of sofa main body 1.
[0030] In the embodiment, in use, first, fire -retardant layer 4 and heating pad 3 are placed on base 2, leather rebound cushion 6 is placed on the top of fire -retardant layer 4 in sequence, and space cotton 7 arranged in the leather rebound cushion 6 is double-layer filling, and the softness and comfort of the double-layer filling are higher than that of single sponge filling, and the leather rebound cushion 6 is high-density sponge, so that the leather rebound cushion 6 has the effect of rebounding, and the acarid removal bag 14 arranged in the center of the space cotton 7 contains traditional Chinese medicine, so that the acarids in the sofa can be driven away, and the service life of the leather rebound cushion 6 is prolonged, and the surface layer of the leather rebound cushion 6 is made of leather, so that the leather rebound cushion 6 is convenient to wipe and clean, and the heating pad 3 is provided with electric heating wire, the electric heating wire is connected with external power socket through the conductive wire 5, and the input end of the electric heating wire is electrically connected with the output end of the controller 15, so that the user can start and control the working power of the heating pad 3 through the controller 15 according to the needs of the user, heat can be transferred to the leather rebound cushion 6 in the sofa, so that the user feels comfortable and warm when sitting on the sofa, and a temperature sensor can be arranged on the leather rebound cushion 6, and the temperature is fed back to the controller 15, so that the heating temperature is controlled.
[0031] Please refer to Figures 3-5 , as a kind of embodiment of extension sofa 13: second slide rail 11 is equipped with connecting groove 16, connecting plate 17 is equipped between second sliding block 12 on same support plate 10, limit device includes limit block 18, limit rod 19 is slidably arranged on connecting plate 17, limit hole 20 that cooperates with limit rod 19 is arranged on limit block 18, limit rod 19 is equipped with limit handle 21 on one end, limit slot 22 is equipped on connecting plate 17, limit plate 23 is arranged in limit slot 22 of limit rod 19, limit spring 24 is arranged between limit plate 23 and limit slot 22, support wheel 25 is arranged on the bottom of support plate 10, handle 26 is arranged on the side of extension sofa 13.
[0032] More specifically, in use of the expandable sofa 13, the expandable sofa 13 is pulled by the handle 26 to drive the supporting plate 10 and the first sliding block 9 to move on the first sliding rail 8, the supporting wheels 25 improve the convenience of moving the expandable sofa 13, the bottom of the expandable sofa 13 is lifted upward, the expandable sofa 13 drives the second sliding block 12 to move on the second sliding rail 11, and the second sliding block 12 drives the connecting plate 17 to move on the connecting groove 16, but the upper top surface of the limiting rod 19 is an inclined surface, when the limiting rod 19 contacts the limiting block 18, the limiting rod 19, the limiting plate 23 and the limiting spring 24 are pressed to make the limiting rod 19 extend into the limiting groove 22, when the connecting plate 17 continues to move upward, when the limiting rod 19 is aligned with the limiting hole 20, the limiting rod 19 extends into the limiting hole 20 under the elastic force of the limiting hole 20, thereby fixing the height position of the second sliding block 12 and the expandable sofa 13, facilitating use of the expandable sofa 13, when the expandable sofa 13 is disassembled, the limiting handle 21 is pulled to move the expandable sofa 13 downward and extend the expandable sofa 13 into the bottom of the sofa main body 1, facilitating storage of the expandable sofa 13.
[0033] In summary, when the whole device is in use or operation: in use, first, the fire-retardant layer 4 and the heating pad 3 are placed on the base 2, the leather rebound cushion 6 is placed on the top of the fire-retardant layer 4 in turn, the space cotton 7 arranged in the leather rebound cushion 6 forms a double-layer filling, which is softer and more comfortable than a single sponge filling, the leather rebound cushion 6 is high-density sponge, which has a rebounding effect, the mite removal bag 14 arranged in the center of the space cotton 7 contains traditional Chinese medicine, which can drive away mites in the sofa and prolong the service life of the leather rebound cushion 6, the surface layer of the leather rebound cushion 6 is made of leather, which is convenient for cleaning later, the heating pad 3 is provided with an electric heating wire, the electric heating wire is connected with an external power socket through the conductive wire 5, and the input end of the electric heating wire is electrically connected with the output end of the controller 15, the user can start and control the working power of the heating pad 3 through the controller 15 according to the needs, heat is transferred to the leather rebound cushion 6 on the sofa, so that the user feels comfortable and warm on the sofa, and a temperature sensor can be arranged on the leather rebound cushion 6 to feed back the temperature to the controller 15 to control the heating temperature.
[0034] In use, the extensible sofa 13 is pulled by the handle 26, the extensible sofa 13 drives the supporting plate 10 and the first sliding block 9 to move on the first sliding rail 8, the supporting wheel 25 improves the convenience of moving the extensible sofa 13, the bottom of the extensible sofa 13 is lifted upward, the extensible sofa 13 drives the second sliding block 12 to move on the second sliding rail 11, meanwhile, the second sliding block 12 drives the connecting plate 17 to move on the connecting groove 16, but the upper top surface of the limiting rod 19 is an inclined surface, when the limiting rod 19 contacts the limiting block 18, the limiting rod 19, the limiting plate 23 and the limiting spring 24 are pressed, the limiting rod 19 extends into the limiting groove 22, when the connecting plate 17 continues to move upward, when the limiting rod 19 is aligned with the limiting hole 20, the limiting rod 19 extends into the limiting hole 20 under the elastic force of the limiting hole 20, thereby the height position of the second sliding block 12 and the extensible sofa 13 is fixed, the extensible sofa 13 is convenient to use, when the extensible sofa 13 is disassembled, the limiting handle 21 is pulled, the extensible sofa 13 is moved downward, and the extensible sofa 13 extends into the bottom of the sofa main body 1, the extensible sofa 13 is convenient to store.
[0035] The other parts not described in the utility model are all prior art, so they are not described here.
[0036] In all the schemes mentioned above, the connection between two components can be selected according to actual conditions, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods. Here, it is not described one by one. In the above, whenever it is mentioned that it is fixedly connected, it is preferred to consider welding. Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model. The scope of the utility model is defined by the appended claims and their equivalents.
[0037] In all the schemes mentioned above, if there is no explicit description, the electrical element operation is controlled by the controller. Since the controller is matched with common equipment, its control principle and circuit connection belong to existing known and mature technology, and its electrical connection relationship and specific circuit structure are not described here.
[0038] In all the schemes mentioned above, if actual needs require, the motor can be matched with a speed reducer. The connection structure and working principle between the motor and the speed reducer are existing known technology, and the utility model does not need to be described.
[0039] In all the above-mentioned schemes, the solar panel is connected to the battery, and the necessary accessories such as the inverter, the battery charging controller, the cable and the fuse, and the support, etc. are matched. The control principle and the line connection are all known and mature technologies, and the electrical connection relationship and the specific circuit structure are not described here.
Claims
1. A durable leather sofa with expandable usable area comprising a sofa body (1), characterized in that: The sofa body (1) includes a base (2), the base (2) is provided with a heating pad (3), the outer side of the heating pad (3) is surrounded by a flame retardant layer (4), one side of the heating pad (3) is provided with a conductive wire (5), the upper surface of the flame retardant layer (4) is connected with a leather rebound cushion (6), the inside of the leather rebound cushion (6) is filled with space cotton (7), the lower side of the sofa body (1) is symmetrically provided with a first sliding rail (8), the first sliding rail (8) is provided with a first sliding block (9), the first sliding block (9) is provided with a support plate (10), the support plate (10) is symmetrically provided with a second sliding rail (11), the second sliding rail (11) is provided with a second sliding block (12), the second sliding block (12) is provided with an extended sofa (13) between the second sliding rail (11) and the second sliding block (12), and a limiting device is arranged between the second sliding rail (11) and the second sliding block (12).
2. The durable leather sofa of claim 1, wherein: The space cotton (7) is internally provided with a mite removal bag (14).
3. The durable leather sofa of claim 1, wherein: One side of the heating pad (3) is electrically connected with a controller (15), and the controller (15) is arranged on the armrest of the sofa body (1).
4. The durable leather sofa of claim 1, wherein: A connecting groove (16) is formed in the second sliding rail (11), and a connecting plate (17) is arranged between the second sliding blocks (12) on the same support plate (10).
5. The durable leather sofa of claim 4, wherein: The limiting device comprises a limiting block (18), a limiting rod (19) is slidably arranged on the connecting plate (17), the limiting block (18) is provided with a limiting hole (20) matched with the limiting rod (19), and one end of the limiting rod (19) is provided with a limiting handle (21).
6. The durable leather sofa of claim 5, wherein: A limiting groove (22) is formed in the connecting plate (17), a limiting plate (23) is arranged in the limiting groove (22) of the limiting rod (19), and a limiting spring (24) is arranged between the limiting plate (23) and the limiting groove (22).
7. The expandable area, durable leather sofa of claim 1, wherein: The bottom of the support plate (10) is provided with a support wheel (25).
8. The expandable area, durable leather sofa of claim 1, wherein: One side of the extended sofa (13) is provided with a handle (26).