A sofa chair with a handrail convenient to disassemble and assemble

Abstract

The utility model relates to the technical field of sofa chair, especially a sofa chair convenient to dismount handrails, including handrail support, the both sides handrails of handrail support are assembled with handrail pad, the butt joint of handrail support is installed with connecting frame, the connecting frame is "" L " type frame, the bottom surface of connecting frame is installed with the cushion, the rear side of connecting frame is installed with backrest pad, backrest pad is located the upper portion of cushion and mutually contacts, still including insert frame, connecting plate and docking frame, the bottom shell of cushion is provided with insert frame, insert frame is recessed to the inside of cushion shell, the both sides of the inner wall of insert frame are opened with the clamping slot symmetry, the utility model discloses through the mutual butt joint of insert frame and docking frame, and utilize the lock catch subassembly, realize the cushion and backrest pad to be installed to handrail support without tools, make the whole sofa chair can conveniently install and dismount, the use of user is convenient.

Description

Technical Field

[0001] This utility model relates to the field of sofa and chair technology, and in particular to a sofa and chair with easily detachable armrests. Background Technology

[0002] As one of the core pieces of furniture in modern homes, sofas and chairs are increasingly designed with modularity and functionality in mind. In recent years, there has been a significant increase in demand for sofas and chairs with detachable armrests, especially suitable for small apartments or spaces requiring flexible layout adjustments. To adapt to diverse lifestyles and meet the multifunctional needs of different users, sofas and chairs with easily detachable armrests have emerged.

[0003] Traditional sofas have significant design shortcomings, primarily in the way the armrests are connected to the chair body. Most sofas use screws, glue, or welding to fix the armrests, which not only limits the flexibility of the furniture but also brings many inconveniences. When replacing or repairing the armrests, users need to use tools such as screwdrivers and wrenches to complete the disassembly work, making the whole process cumbersome and time-consuming, greatly affecting the user experience. Secondly, because the armrests cannot be easily removed, the overall size of the sofa is larger, thus increasing the space costs for logistics, transportation, and warehousing. Therefore, we propose a sofa with easily detachable armrests to solve the above problems. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a sofa chair with easy-to-disassemble and assemble armrests.

[0005] A sofa chair with easily detachable armrests includes an armrest support, a connecting frame, a seat cushion, and a backrest cushion. The armrest support serves as the load-bearing structure of the sofa chair. Armrest cushions are mounted on both sides of the armrest support. A connecting frame, which is L-shaped, is mounted on the armrest support. The seat cushion is mounted on the bottom surface of the connecting frame, and a backrest cushion is mounted on the rear side of the connecting frame. The backrest cushions are positioned above the seat cushion and are in contact with each other. The sofa chair also includes an insertion frame, a connecting plate, and a mating frame. At least two insertion frames are provided at the bottom shell of the seat cushion. The insertion frames are recessed into the seat cushion shell, and symmetrical slots are formed on both sides of the inner wall of the insertion frames. A connecting plate is fixedly connected to the lower frame of the armrest support. At least two mating frames are fixedly provided on the top of the connecting plate. The mating frames protrude from the bottom surface of the connecting plate and are used to mate with and mate with the corresponding insertion frames at the bottom of the seat cushion. A locking assembly for locking the insertion frames is provided on the upper part of the mating frames.

[0006] Optionally, the locking assembly includes a guide rod and a wedge block. The guide rod is fixedly connected to the inner wall of the docking frame. The wedge block is symmetrically slidably connected to the docking frame through the guide rod. The wedge block is adapted to be inserted into a slot in the frame. The inclined surface of the wedge block faces upward. The docking frame has symmetrical openings on both sides. The wedge block is located in the opening of the docking frame. A spring is provided between the two wedge blocks.

[0007] Optionally, the unlocking component includes a bearing, a two-way lead screw, and a slider. The two-way lead screw is rotatably mounted on the inner wall of the docking frame via the bearing. A groove parallel to the two-way lead screw is formed on the inner wall of the docking frame. Sliders are symmetrically slidably connected to the groove of the docking frame. The two-way threads of the two-way lead screw are threadedly engaged with the sliders. The sliders are in contact with the corresponding L-shaped blocks on the same side.

[0008] Optionally, the bidirectional lead screw is fixedly equipped with an operating wheel for easy user operation. The operating wheel is located at the bottom opening of the docking frame, and the user rotates the sliding operating wheel inside the docking frame at the bottom of the connecting plate.

[0009] Optionally, the bottom surface of the connecting plate is provided with a second sliding groove, and the connecting plate is slidably connected to the baffle through the second sliding groove. The surface of the baffle is provided with anti-slip texture. The baffle is used to cover the opening at the bottom of the docking frame on the connecting plate to reduce the entry of dust and other contaminants into the docking frame.

[0010] The beneficial effects are:

[0011] 1. This utility model uses an insertion frame and a docking frame to connect and cooperate with each other, and utilizes a locking assembly to enable the seat cushion and backrest cushion to be installed onto the armrest bracket without tools, making the entire sofa chair easy to install and disassemble, and convenient for users.

[0012] 2. This utility model uses an unlocking component consisting of a bearing, a two-way lead screw, and a slider, along with an operating wheel, which allows users to easily complete the unlocking operation without the aid of any tools, further simplifying the disassembly process.

[0013] 3. This utility model can also block the opening at the bottom of the docking frame on the connecting plate by using a baffle, reducing the entry of dust and other contaminants into the docking frame, which helps to maintain the normal operation of internal components such as bearings and bidirectional lead screws and extend their service life. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a schematic diagram of the handrail bracket and connecting frame after separation.

[0016] Figure 3This is a three-dimensional structural diagram of the insertion frame of this utility model.

[0017] Figure 4 This is a schematic diagram showing the cooperative relationship between the docking frame, wedge block, bidirectional lead screw, and slider of this utility model.

[0018] The labels in the diagram are as follows: 1. Armrest bracket, 101. Armrest pad, 2. Connecting frame, 3. Seat cushion, 4. Backrest cushion, 5. Insertion frame, 51. Slot, 6. Connecting plate, 61. Docking frame, 7. Guide rod, 8. Wedge block, 81. L-shaped block, 9. Spring, 10. Bearing, 11. Two-way lead screw, 111. Operating wheel, 12. Slider, 13. Slide groove one, 14. Baffle, 15. Slide groove two, 16. Anti-slip texture. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but this does not limit the scope of protection and application of the present invention.

[0020] A sofa chair with easily detachable and detachable armrests, such as Figures 1-4 As shown, the sofa includes an armrest support 1, a connecting frame 2, a seat cushion 3, and a backrest cushion 4. The armrest support 1 serves as the load-bearing structure of the sofa. Armrest cushions 101 are mounted on both sides of the armrest support 1. The connecting frame 2, which is an "L"-shaped frame, is mounted on the armrest support 1. The seat cushion 3 is mounted on the bottom surface of the connecting frame 2, and the backrest cushion 4 is mounted on the rear side of the connecting frame 2. The backrest cushion 4 is located above the seat cushion 3 and is in contact with it. The sofa also includes an insertion frame 5, a connecting plate 6, and a docking frame 61. At least two insertion frames 5 are provided at the bottom shell of the seat cushion 3. The insertion frames 5 are recessed into the shell of the seat cushion 3. The inner walls of the insertion frames 5 are symmetrically provided with slots 51 on both sides. The lower part of the armrest support 1... A connecting plate 6 is fixedly connected to the frame. At least two mating frames 61 are fixedly provided on the top of the connecting plate 6. The mating frames 61 protrude from the bottom surface of the connecting plate 6. The mating frames 61 are used to mate with and mate with the corresponding insertion frame 5 at the bottom of the seat cushion 3. A locking component is provided on the upper part of the mating frame 61 for locking the insertion frame 5. By aligning the insertion frame 5 at the bottom of the seat cushion 3 on the connecting frame 2 and inserting it into the corresponding mating frame 61, the locking component in the mating frame 61 locks it to the insertion frame 5 at the bottom of the seat cushion 3, so that the connecting frame 2 can be stably connected to the armrest bracket 1. When disassembling, the locking component is triggered to directly release the locking of the insertion frame 5, so that the entire sofa chair can be quickly installed and disassembled without the aid of tools.

[0021] like Figures 2-4As shown, the locking assembly includes a guide rod 7 and a wedge block 8. The guide rod 7 is fixedly connected to the inner wall of the docking frame 61. The wedge block 8 is symmetrically slidably connected inside the docking frame 61 through the guide rod 7. The wedge block 8 is adapted to the slot 51 inside the insertion frame 5. The inclined surface of the wedge block 8 faces upward. The docking frame 61 has symmetrical openings on both sides. The wedge block 8 is located in the opening of the docking frame 61. A spring 9 is provided between the two wedge blocks 8. When the insertion frame 5 is inserted downward into the corresponding docking frame 61, the insertion frame 5 presses the wedge block 8 of the docking frame 61, so that the wedge block 8 compresses the spring 9 inward along the guide rod 7 until the slot 51 on the insertion frame 5 aligns with the wedge block 8. Under the action of the spring 9, the wedge block 8 pops out and locks into the slot 51 on the insertion frame 5, so that the connecting frame 2, seat cushion 3 and backrest cushion 4 are securely installed on the armrest bracket 1.

[0022] like Figure 4 As shown, the wedge block 8 is fixedly connected to the L-shaped block 81 on the inner side of the docking frame 61. The docking frame 61 is provided with an unlocking component. The unlocking component moves the wedge block 8 and releases the lock by pressing the L-shaped block 81.

[0023] like Figure 4 As shown, the unlocking component includes a bearing 10, a bidirectional lead screw 11, and a slider 12. The bidirectional lead screw 11 is rotatably mounted on the inner wall of the docking frame 61 via the bearing 10. A groove 13 parallel to the bidirectional lead screw 11 is opened on the inner wall of the docking frame 61. Slider 12 is symmetrically slidably connected to the groove 13 of the docking frame 61. The bidirectional threads of the bidirectional lead screw 11 are threadedly engaged with the slider 12. The slider 12 is in contact with the corresponding L-shaped block 81 on the same side. Rotating the bidirectional lead screw 11 and driving the corresponding slider 12 on the same side through the bidirectional threads will squeeze the L-shaped block 81, so that the L-shaped block 81 can overcome the elastic force of the spring 9 and drive the wedge block 8 to complete the unlocking operation.

[0024] like Figure 2 and Figure 4 As shown, the bidirectional lead screw 11 is fixedly equipped with an operating wheel 111 for easy use by the user. The operating wheel 111 is located at the bottom opening of the docking frame 61. The user rotates the sliding operating wheel 111 inside the docking frame 61 at the bottom of the connecting plate 6, so that the operating wheel 111 can easily drive the bidirectional lead screw 11 to rotate, thereby enabling the wedge block 8 to disengage without the aid of tools.

[0025] like Figure 2 As shown, the bottom surface of the connecting plate 6 is provided with a second sliding groove 15. The connecting plate 6 is slidably connected to the baffle 14 through the second sliding groove 15. The surface of the baffle 14 is provided with anti-slip texture 16. The baffle 14 is used to cover the opening at the bottom of the docking frame 61 on the connecting plate 6, reducing the entry of dust and other contaminants into the docking frame 61, thereby affecting the normal use of components such as the bearing 10 and the double-acting screw 11.

[0026] When installing this sofa chair, the user vertically aligns the insertion frame 5 at the bottom of the seat cushion 3 with the mating frame 61 on the connecting plate 6 of the armrest bracket 1 and presses it down. During the pressing process, the inner wall of the insertion frame 5 presses against the wedge blocks 8 symmetrically arranged inside the mating frame 61, forcing the wedge blocks 8 to retract along the guide rod 7 and compress the spring 9 until the slot 51 of the insertion frame 5 aligns with the wedge block 8. At this time, the spring 9 rebounds and pushes the wedge block 8 out and into the slot 51, forming a rigid lock, ensuring a stable connection between the seat cushion 3, backrest, and armrest bracket 1. When disassembling this sofa chair, the user touches the anti-slip pad and pushes open the baffle 14 at the bottom of the connecting plate 6, then rotates the exposed operating wheel 111 at the bottom of the mating frame 61. The operating wheel 111 moves... The bidirectional lead screw 11 rotates synchronously, driving the sliders 12 on both sides to move synchronously inward along the slide groove. The inwardly moving sliders 12 press the L-shaped block 81 connected to the wedge block 8, causing the wedge block 8 to compress the spring 9 and disengage from the slot 51 of the insertion frame 5. At this time, the connecting frame 2 can be lifted directly upward, allowing the seat cushion 3 and backrest cushion 4 to be separated from the armrest bracket 1. To ensure the durability of the mechanism, the bottom of the connecting plate 6 is provided with a sliding anti-slip textured baffle 14. When the sofa chair is in normal use, the baffle 14 covers the opening of the connecting frame 61, effectively preventing dust from entering the lead screw and bearing 10 and other precision parts. This simplifies the operation process and extends the service life, achieving a tool-free one-click quick disassembly and assembly experience.

[0027] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A sofa chair with easy-to-assemble and disassemble armrests, comprising an armrest support (1), a connecting frame (2), a seat cushion (3) and a backrest cushion (4), wherein armrest cushions (101) are mounted on both sides of the armrest support (1), the connecting frame (2) is connected to the armrest support (1), the connecting frame (2) is an "L" shaped frame, the seat cushion (3) is mounted on the bottom surface of the connecting frame (2), and the backrest cushion (4) is mounted on the rear side of the connecting frame (2); Its features are, It also includes an insertion frame (5), a connecting plate (6), and a docking frame (61). An insertion frame (5) is provided at the bottom shell of the cushion (3). The insertion frame (5) is recessed into the shell of the cushion (3). The inner walls of the insertion frame (5) are symmetrically provided with slots (51). A connecting plate (6) is fixedly connected to the lower frame of the armrest bracket (1). A docking frame (61) is fixedly provided on the top of the connecting plate (6). The docking frame (61) protrudes on the bottom surface of the connecting plate (6). The docking frame (61) is used to cooperate and dock with the corresponding insertion frame (5) at the bottom of the cushion (3). A locking assembly for locking the insertion frame (5) is provided on the upper part of the docking frame (61).

2. A sofa chair with easily detachable armrests as described in claim 1, characterized in that, The locking assembly includes a guide rod (7) and a wedge block (8). The guide rod (7) is fixedly connected to the inner wall of the docking frame (61). The wedge block (8) is symmetrically slidably connected to the docking frame (61) through the guide rod (7). The wedge block (8) is adapted to the slot (51) in the insertion frame (5). The inclined surface of the wedge block (8) faces upward. The docking frame (61) has symmetrical openings on both sides. The wedge block (8) is located in the opening of the docking frame (61).

3. A sofa chair with easily detachable armrests as described in claim 2, characterized in that, The wedge block (8) is fixedly connected to an L-shaped block (81) on the inner side of the docking frame (61), and the docking frame (61) is provided with an unlocking component.

4. A sofa chair with easily detachable armrests as described in claim 3, characterized in that, The unlocking component includes a bearing (10), a two-way lead screw (11), and a slider (12). The inner wall of the docking frame (61) is rotatably mounted with the two-way lead screw (11) via the bearing (10). The inner wall of the docking frame (61) is provided with a groove (13) parallel to the two-way lead screw (11). The slider (12) is symmetrically slidably connected to the groove (13) of the docking frame (61). The two-way threads of the two-way lead screw (11) are threadedly engaged with the slider (12). The slider (12) is in contact with the corresponding L-shaped block (81) on the same side.

5. A sofa chair with easily detachable armrests as described in claim 4, characterized in that, The bidirectional lead screw (11) is fixedly equipped with an operating wheel (111) for easy use by the user. The operating wheel (111) is located at the bottom opening of the docking frame (61).

6. A sofa chair with easily detachable armrests as described in claim 5, characterized in that, The bottom surface of the connecting plate (6) is provided with a second sliding groove (15). The connecting plate (6) is slidably connected to the baffle (14) through the second sliding groove (15). The surface of the baffle (14) is provided with anti-slip texture (16). The baffle (14) is used to cover the opening at the bottom of the docking frame (61) on the connecting plate (6).

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