Single sofa

Abstract

The utility model belongs to the technical field of armchairs, and particularly relates to an armchair which comprises a base and a locking mechanism, a backrest plate and armrest plates located on the two sides of the backrest plate are detachably mounted at the top of the base, mounting plates are arranged at the bottoms of the backrest plate and the two armrest plates, and mounting grooves allowing the three mounting plates to be vertically inserted in an attached mode are formed in the top wall of the base. According to the locking mechanism, synchronous locking or unlocking of the three mounting plates is achieved through cooperation of the rotary knob, the driving rod and the bevel gear. The rotary knobs located at one ends of the driving rods below the backrest plate are rotated, the three driving rods are driven to rotate synchronously through the bevel gears which are meshed with one another and distributed in an n shape, the movable plate slides along the limiting rods, the inserting rods are inserted into or pulled out of the inserting holes of the mounting plate, operation is easy and convenient, complex tools are not needed, and the mounting and dismounting efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of single sofa technology, specifically a single sofa. Background Technology

[0002] Single sofas have become indispensable home or office furnishings due to their comfort. However, most existing single sofas are one-piece molded, making them bulky and non-disassembly difficult to transport, resulting in high transportation costs. They are also inconvenient to carry upstairs or through narrow passageways. Therefore, there is a need to develop a new type of single sofa. Utility Model Content

[0003] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0004] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0005] A single sofa, comprising a base and a locking mechanism;

[0006] The base has a backrest panel and armrest panels on both sides of the backrest panel that are detachably installed on the top. The bottom of the backrest panel and the two armrest panels are provided with mounting plates. The top wall of the base has a mounting groove for the three mounting plates to be inserted vertically.

[0007] The locking mechanism is located inside the base for locking / unlocking the mounting plates. The locking mechanism includes a mounting cavity formed in the lower half of the base. A fixing frame is fixedly installed on the top wall of the mounting cavity below each mounting plate. A limiting rod perpendicular to itself is fixedly installed on the side wall of each fixing frame. A driving rod perpendicular to itself is rotatably installed through the side wall of each fixing frame. A movable plate is slidably installed on the rod of each limiting rod. The rod of the driving rod is screwed through the side wall of the movable plate. An insertion rod is protruding from the side of the movable plate near the mounting plate. The side wall of the mounting plate has an insertion hole for inserting / removing the insertion rod. Meshing bevel gears are provided at the ends of the three driving rods that are close to each other.

[0008] As a preferred embodiment of the single sofa described in this utility model, the upper half of the base is solid, and the three mounting slots are all connected to the inner cavity of the mounting chamber.

[0009] As a preferred embodiment of the single-person sofa of the present utility model, wherein: the rod body of the driving rod rotates through the side wall of the fixing frame through a bearing sleeve, and the rod body of the limiting rod slides through the side wall of the movable plate through a linear bearing.

[0010] As a preferred embodiment of the single-person sofa of the present utility model, wherein: the three bevel gears are integrally distributed in a "冂" shape, and two mutually perpendicular bevel gears are meshed.

[0011] As a preferred embodiment of the single-person sofa of the present utility model, wherein: one end of the driving rod located below the backrest plate is provided with a knob, the knob is arranged at one end of the driving rod far from the bevel gear, the rod body of the driving rod rotates through the rear side wall of the base, and the bevel gear is arranged behind the base.

[0012] Compared with the prior art, the beneficial effects of the present utility model are: the locking mechanism realizes the synchronous locking or unlocking of the three mounting plates through the cooperation of the knob, the driving rod and the bevel gear. Rotate the knob at one end of the driving rod located below the backrest plate, and through the bevel gears meshed and distributed in a "冂" shape, the three driving rods are synchronously rotated, so that the movable plate slides along the limiting rod, and the insertion rod is inserted into or pulled out of the insertion hole of the mounting plate. The operation is simple, no complex tools are required, and the installation and disassembly efficiency is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the present utility model will be described in detail below with reference to the drawings and specific embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them:

[0014] Figure 1 is a structural schematic diagram of the present utility model;

[0015] Figure 2 is a structural schematic diagram of the disassembled sofa of the present utility model;

[0016] Figure 3 is the present utility model Figure 3 is a structural schematic diagram of the present utility model in the rear upward view direction;

[0017] Figure 4 is a structural schematic diagram of the internal components of the base of the present utility model;

[0018] Figure 5 is the present utility model Figure 3 is a structural schematic diagram of the disassembled sofa of the present utility model in the side view direction;

[0019] Figure 6This is a schematic diagram of the locking mechanism of this utility model.

[0020] In the diagram: base 100, backrest 101, armrest 102, mounting plate 103, mounting groove 104, locking mechanism 200, mounting cavity 201, fixing frame 202, limit rod 203, drive rod 204, movable plate 205, insertion rod 206, insertion hole 207, bevel gear 208, knob 209. Detailed Implementation

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0025] Please see Figures 1-6 The diagram shown is a structural schematic of an embodiment of the single sofa of this utility model. Please refer to [link / reference]. Figures 1-6 This section provides a detailed introduction to a single sofa.

[0026] Example 1: A single sofa includes a base 100 and a locking mechanism 200; a backrest 101 and armrests 102 located on both sides of the backrest 101 are detachably installed on the top of the base 100; mounting plates 103 are provided at the bottom of the backrest 101 and the two armrests 102; and the top wall of the base 100 has a mounting groove 104 for the three mounting plates 103 to be inserted vertically and fit together.

[0027] The locking mechanism 200 is arranged inside the base 100 for locking / unlocking the mounting plate 103. The locking mechanism 200 includes a mounting cavity 201 opened in the inner cavity of the lower half of the base 100. A fixing frame 202 is fixedly arranged at the top wall of the inner cavity of the mounting cavity 201 below each mounting plate 103. A limiting rod 203 perpendicular to itself is fixedly arranged on the side wall of each fixing frame 202. A driving rod 204 perpendicular to itself is rotatably penetrated through the side wall of each fixing frame 202. A movable plate 205 is slidably arranged on the rod body of each limiting rod 203. The rod body of the driving rod 204 is screwed through the side wall of the movable plate 205. A plug rod 206 protrudes from the side of the movable plate 205 close to the mounting plate 103. A jack 207 for inserting / extracting the plug rod 206 is opened on the side wall of the mounting plate 103. Conical gears 208 that mesh with each other are arranged at the close ends of the three driving rods 204.

[0028] Further, the upper half of the base 100 is solid. The three mounting grooves 104 are all connected to the inner cavity of the mounting cavity 201. The upper half of the base 100 is solid, which improves the overall bearing capacity of the base 100.

[0029] Further, the rod body of the driving rod 204 is rotatably penetrated through the side wall of the fixing frame 202 through a bearing sleeve. The side wall of the movable plate 205 is slidably penetrated through the rod body of the limiting rod 203 through a linear bearing. By arranging the bearing sleeve and the linear bearing, the friction when the components move is reduced.

[0030] Further, the three conical gears 208 are integrally distributed in an inverted U shape. The two mutually perpendicular conical gears 208 mesh with each other. When the middle conical gear 208 rotates, it can drive the two conical gears 208 on both sides to rotate.

[0031] Further, a knob 209 is arranged at one end of the driving rod 204 below the backrest plate 101. The knob 209 is arranged at the end of the driving rod 204 far from the conical gear 208. The rod body of the driving rod 204 is rotatably penetrated through the rear side wall of the base 100, and the conical gear 208 is arranged behind the base 100. It is convenient to drive the middle conical gear 208 to rotate through the conical gear 208.

[0032] In Example 2, based on Example 1, a lifting pad can be hinged to the top of the base 100, and the lifting pad is located between the two armrests 102 and in front of the backrest 101. The lower front edge of the lifting pad is hinged to the base 100 via a hinge. An electric cylinder is hinged to the bottom of the lifting pad at the rear. A groove is recessed in the top of the base 100, and the groove is not connected to the mounting cavity 201. The lower end of the electric cylinder is hinged to the bottom of the groove. The lifting pad, the groove, and the electric cylinder are not shown in the figure. A control button for controlling the extension and retraction of the electric cylinder is installed near the lifting pad.

[0033] When the electric cylinder is shortened and stored in the groove, the lifting pad is set flat for the user to sit on.

[0034] For the elderly or those with mobility issues who need to get up, when they need to stand up while sitting on the assisted standing mat, they can use a button to control an electric cylinder to slowly open the assisted standing mat, assisting them to stand up.

[0035] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A single-seat sofa, comprising a base (100) and a locking mechanism (200), characterized in that: A backrest plate (101) and armrest plates (102) located on both sides of the backrest plate (101) are detachably mounted on the top of the base (100). Mounting plates (103) are provided at the bottoms of the backrest plate (101) and the two armrest plates (102). An installation groove (104) for the three mounting plates (103) to fit and vertically insert is opened on the top wall of the base (100); The locking mechanism (200) is arranged inside the base (100) for locking / unlocking the mounting plate (103). The locking mechanism (200) includes an installation cavity (201) opened in the inner cavity of the lower half of the base (100). A fixed bracket (202) is fixedly arranged on the top wall of the inner cavity of the installation cavity (201) below each mounting plate (103). A limiting rod (203) perpendicular to itself is fixedly arranged on the side wall of each fixed bracket (202). A driving rod (204) perpendicular to itself is rotatably penetrated through the side wall of each fixed bracket (202). A movable plate (205) is slidably arranged on the rod body of each limiting rod (203). The rod body of the driving rod (204) is screwed through the side wall of the movable plate (205). A plug rod (206) protrudes from the side of the movable plate (205) close to the mounting plate (103). A jack (207) for the plug rod (206) to insert / extract is opened on the side wall of the mounting plate (103). Conical gears (208) that mesh with each other are arranged at the close ends of the three driving rods (204).

2. A single person sofa as claimed in claim 1, characterized in that: The upper half of the base (100) is solid, and the three installation grooves (104) are all connected to the inner cavity of the installation cavity (201).

3. The single-person sofa according to claim 1, characterized in that: The rod body of the driving rod (204) is rotatably penetrated through the side wall of the fixed bracket (202) through a bearing sleeve, and the side wall of the movable plate (205) is slidably penetrated through the rod body of the limiting rod (203) through a linear bearing.

4. The single-person sofa according to claim 1, characterized in that: The three conical gears (208) are integrally distributed in a "冂" shape, and two conical gears (208) perpendicular to each other mesh.

5. The single-person sofa according to claim 1, characterized in that: A knob (209) is arranged at one end of the driving rod (204) located below the backrest plate (101). The knob (209) is arranged at the end of the driving rod (204) far from the conical gear (208). The rod body of the driving rod (20�) is rotatably penetrated through the rear side wall of the base (100), and the conical gear (208) is arranged behind the base (100).

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