Leisure electric single chair rack

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By introducing the seat frame, leg and back transmission rods and drive devices into the single chair frame, combined with a folding and telescopic mechanism, the problem of complex structure of the single chair frame is solved, simple assembly and maintenance are achieved, the product aesthetics is improved and the cost is reduced.

CN223365217UActive Publication Date: 2025-09-23DONGGUAN CHUANGQI SMART HOME CO LTD

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Patent Information

Application Number: CN202422871865.7
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-11-25
Publication Date: 2025-09-23
Estimated Expiration: 2034-11-25

AI Technical Summary

Technical Problem

The existing single chair frame has a complex structure and is difficult to assemble and maintain.

Method used

The utility model adopts a seat frame, a leg transmission rod, a back transmission rod, a leg driving device, a back driving device and a folding and telescopic mechanism, and has a simple structure. The leg and back driving devices drive the telescopic components and the connection plate to rotate, thereby realizing the extension or contraction of the legs and the backrest.

Benefits of technology

The leisure electric single chair frame has a simple structure, convenient assembly and maintenance processes, reduced assembly and maintenance difficulties, increased product aesthetics and saved costs.

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Abstract

The utility model relates to the technical field of single chair racks, in particular to a leisure electric single chair rack, which comprises a seat frame, a leg transmission rod, a back transmission rod, a leg driving device, a back driving device and two folding telescopic mechanisms, the folding telescopic mechanism comprises a leg telescopic assembly and a back connecting plate. The leg telescopic assembly comprises a first leg connecting rod, a second leg connecting rod, a third leg connecting rod, a fourth leg connecting rod and a leg bearing frame. The two ends of the leg transmission rod are hinged to leg telescopic assemblies of the two folding telescopic mechanisms respectively, and the two ends of the back transmission rod are connected to back connecting plates of the two folding telescopic mechanisms respectively; the leg driving device is used for driving the leg transmission rod to rotate so as to drive the leg telescopic assembly to stretch or retract; the back driving device is used for driving the back transmission rod to rotate so as to drive the back connecting plate to stretch or retract. The leisure electric single chair rack is simple in structure, and is relatively simple in actual assembly and maintenance processes.

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Description

Technical Field

[0001] The utility model relates to the technical field of single chair frames, in particular to a leisure electric single chair frame. Background Art

[0002] With the improvement of economy and living standards, more and more families will add sofas and chairs to their homes. As an important component of sofas and chairs, the single chair frames currently on the market have complex structures and are difficult to assemble and maintain. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a leisure electric single chair frame, which has a simple structure and is relatively simple in the actual assembly and maintenance processes.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A leisure electric single chair frame, comprising a seat frame, a leg transmission rod, a back transmission rod, a leg drive device, a back drive device and two folding and telescopic mechanisms; the folding and telescopic mechanism comprises a leg telescopic assembly and a back connecting plate; the leg telescopic assembly comprises a first leg connecting rod, a second leg connecting rod, a third leg connecting rod, a fourth leg connecting rod and a leg support frame;

[0006] The leg driving device and the back driving device are respectively mounted on the seat frame, the two ends of the leg transmission rod are respectively hinged to the leg telescopic components of the two folding and telescopic mechanisms, the two ends of the back transmission rod are respectively connected to the back connecting plates of the two folding and telescopic mechanisms, and the back connecting plates are hinged to the seat frame; the leg driving device is used to drive the leg transmission rod to rotate to drive the leg telescopic components to extend or retract; the back driving device is used to drive the back transmission rod to rotate to drive the back connecting plate to extend or retract;

[0007] One end of the first leg connecting rod is hinged to the seat frame, the other end of the first leg connecting rod is hinged to one end of the second leg connecting rod, the other end of the second leg connecting rod is hinged to the leg supporting bracket, and the middle part of the second leg connecting rod is hinged to the middle part of the third leg connecting rod; one end of the third leg connecting rod is hinged to one end of the leg transmission rod, the other end of the third leg connecting rod is hinged to one end of the fourth leg connecting rod, and the other end of the fourth leg connecting rod is hinged to the leg supporting bracket.

[0008] Furthermore, the seat frame includes a drive device mounting tube and two frame plates; the two ends of the drive device mounting tube are respectively connected to the two frame plates; the leg drive device and the back drive device are respectively installed on the drive device mounting tube; one end of the first leg connecting rod is hinged to one end of the frame plate; the back connecting plate is hinged to the other end of the frame plate.

[0009] Furthermore, the two frame plates are respectively connected with an iron sheet, and the iron sheet is provided with a plurality of mounting holes.

[0010] Furthermore, the seat frame is also provided with at least two frame bars, and the two ends of the frame bars are detachably connected to the two frame plates respectively; after the two frame plates and the two frame bars are connected, they form a square frame shape.

[0011] Furthermore, the back connecting plates of the two folding and telescopic mechanisms are bent in a direction approaching each other.

[0012] Furthermore, the back connecting plate includes a first connecting portion, a curved portion and a backrest connecting portion; the curved portion is respectively connected to the first connecting portion and the backrest connecting portion, the first connecting portion is hinged to the seat frame, and the back transmission rod is connected to the first connecting portion.

[0013] Furthermore, the first connecting portion is provided with a first connecting hole.

[0014] Furthermore, the seat frame is connected to a positioning plate, and the back connecting plate is provided with a limiting block, and the positioning plate is used to abut against the limiting block to limit the adjustment angle of the back connecting plate.

[0015] Furthermore, the back transmission rod is provided with a second connecting hole.

[0016] The beneficial effects of the present invention are as follows: the leisure electric single chair frame of the present application has a simple structure and is relatively simple in the actual assembly and maintenance processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model in which the leg telescopic components and the back connecting plate are both in a retracted state.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model with the leg telescopic assembly in an extended state and the back connecting plate in a retracted state.

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the utility model in which the leg telescopic components and the back connecting plate are both in an extended state.

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the seat frame of the utility model provided with two frame bars.

[0021] Description of reference numerals:

[0022] Seat frame 1; drive device mounting tube 11; frame plate 12; iron sheet 13; mounting hole 14; frame bar 15; leg transmission rod 2; back transmission rod 3; second connecting hole 31; leg drive device 4; back drive device 5; folding and telescopic mechanism 6; leg telescopic assembly 61; first leg connecting rod 611; second leg connecting rod 612; third leg connecting rod 613; fourth leg connecting rod 614; leg support bracket 615; back connecting plate 62; first connecting portion 621; bent portion 622; backrest connecting portion 623; first connecting hole 624; limit block 7; positioning plate 8. DETAILED DESCRIPTION

[0023] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to embodiments and drawings. The contents mentioned in the embodiments are not intended to limit the present invention.

[0024] like Figures 1 to 2 As shown, the present invention provides a leisure electric single chair frame, which includes a seat frame 1, a leg transmission rod 2, a back transmission rod 3, a leg driving device 4, a back driving device 5 and two folding and telescopic mechanisms 6; the folding and telescopic mechanism 6 includes a leg telescopic assembly 61 and a back connecting plate 62, and the leg telescopic assembly 61 includes a first leg connecting rod 611, a second leg connecting rod 612, a third leg connecting rod 613, a fourth leg connecting rod 614 and a leg supporting bracket 615;

[0025] The leg driving device 4 and the back driving device 5 are respectively installed on the seat frame 1, and the two ends of the leg transmission rod 2 are respectively hinged to the leg telescopic components 61 of the two folding and telescopic mechanisms 6, and the two ends of the back transmission rod 3 are respectively connected to the back connecting plates 62 of the two folding and telescopic mechanisms 6, and the back connecting plates 62 are hinged to the seat frame 1; the leg driving device 4 is used to drive the leg transmission rod 2 to rotate to drive the leg telescopic components 61 to extend or retract; the back driving device 5 is used to drive the back transmission rod 3 to rotate to drive the back connecting plate 62 to extend or retract;

[0026] One end of the first leg connecting rod 611 is hinged to the seat frame 1, the other end of the first leg connecting rod 611 is hinged to one end of the second leg connecting rod 612, the other end of the second leg connecting rod 612 is hinged to the leg supporting bracket 615, and the middle part of the second leg connecting rod 612 is hinged to the middle part of the third leg connecting rod 613; one end of the third leg connecting rod 613 is hinged to one end of the leg transmission rod 2, the other end of the third leg connecting rod 613 is hinged to one end of the fourth leg connecting rod 614, and the other end of the fourth leg connecting rod 614 is hinged to the leg supporting bracket 615.

[0027] The two folding and telescopic mechanisms 6 are symmetrically arranged on the seat frame 1 . When the leg telescopic assembly 61 is in the retracted state, the leg telescopic assembly 61 is retracted and located inside the seat frame 1 .

[0028] When the leg telescopic assembly 61 needs to be extended, the leg drive device 4 rotates the leg transmission rod 2. The rotating leg transmission rod 2 causes the third leg connecting rod 613 to rotate and extend. The rotation of the third leg connecting rod 613 also causes the second leg connecting rod 612 and the fourth leg connecting rod 614 to rotate and extend. Simultaneously, the rotating second leg connecting rod 612 causes the first leg connecting rod 611 to rotate and extend. Simultaneously, the rotating second leg connecting rod 612 and the rotating fourth leg connecting rod 614 cause the leg support bracket 615 to extend. After the leg telescopic assembly 61 is extended, the user's legs can be placed on the leg support bracket 615.

[0029] After the single chair is made into a finished product, the single chair backrest is connected to the back connecting plate 62. When the single chair backrest needs to be adjusted in angle, the back driving device 5 drives the back transmission rod 3 to rotate, and the rotating back transmission rod 3 drives the back connecting plate 62 to extend or contract to achieve the effect of adjusting the single chair backrest angle.

[0030] The leisure electric single chair frame of the present application has a simple structure and is relatively simple in the actual assembly and maintenance processes.

[0031] like Figure 1 and Figure 2 As shown, in this embodiment, the seat frame 1 includes a drive device mounting tube 11 and two frame plates 12; the two ends of the drive device mounting tube 11 are respectively connected to the two frame plates 12; the leg drive device 4 and the back drive device 5 are respectively installed on the drive device mounting tube 11; one end of the leg first connecting rod 611 is hinged to one end of the frame plate 12; the back connecting plate 62 is hinged to the other end of the frame plate 12.

[0032] The seat frame 1 has a simple structure and is easy to assemble and maintain. In actual use, the rotating leg first connecting rod 611 rotates along the hinge point with the frame plate 12, and the rotating back connecting plate 62 rotates along the hinge point with the frame plate 12.

[0033] like Figure 1 As shown, in this embodiment, the two frame plates 12 are respectively connected to an iron sheet 13 , and the iron sheet 13 is provided with a plurality of mounting holes 14 .

[0034] In actual use, each of the two frame panels 12 is equipped with two iron plates 13, for a total of four iron plates 13. Each frame panel 12 has an iron plate 13 near the leg extension assembly 61, and each frame panel 12 has another iron plate 13 near the back connecting plate 62. When the single chair is manufactured, the armrests are connected to the two iron plates 13 of the frame panels 12 through the mounting holes 14 in the iron plates 1, thus simplifying the structure of the leisure electric single chair frame.

[0035] like Figure 1 and Figure 4 As shown, in this embodiment, the seat frame 1 is further provided with at least two frame bars 15, and the two ends of the frame bar 15 are detachably connected to the two frame plates 12 respectively; after the two frame plates 12 and the two frame bars 15 are connected, they form a square frame shape.

[0036] Currently, the market requires a separate wooden cushion frame, which is then mounted on the two frame plates 12 of the seat frame 1. This additional cushion frame increases the thickness of the finished single chair's cushion, making the finished chair unsightly and unrefined. The present application adds two frame bars 15, which are connected to each other to form a cushion frame. The two frame bars 15 are then connected using multiple tension springs, with the ends of the tension springs hooking onto the two frame bars 15 to form a cushion frame. This results in a thinner, more attractive, and more refined cushion than conventional cushion frames. This also saves the cost of making and installing the cushion frame, reduces the number of assembly steps, and simplifies assembly. Furthermore, the leg telescopic assembly 61 is not restricted by the position of the cushion frame, allowing it to extend longer.

[0037] like Figure 2 and Figure 3 As shown, in this embodiment, the back connecting plates 62 of the two folding and telescopic mechanisms 6 are bent in a direction toward each other.

[0038] The back connecting plate 62 includes a first connecting portion 621, a curved portion 622 and a backrest connecting portion 623; the curved portion 622 is respectively connected to the first connecting portion 621 and the backrest connecting portion 623, the first connecting portion 621 is hinged to the seat frame 1, and the back transmission rod 3 is connected to the first connecting portion 621.

[0039] The two back connecting plates 62 of the present invention are bent toward each other to leave some space when the finished chair is shaped, making it easier to shape the finished chair and making the shape more beautiful. The back connecting plate 62 consists of a first connecting portion 621, a curved portion 622, and a backrest connecting portion 623, and has a simple structure.

[0040] like Figure 1 As shown, in this embodiment, the first connecting portion 621 defines a first connecting hole 624 .

[0041] When the single chair is manufactured, the first connection hole 624 is used to connect other components, such as a hanging plate, a pad, etc., to facilitate production and assembly.

[0042] like Figure 1 and Figure 3 As shown, in this embodiment, the seat frame 1 is connected to a positioning plate 8 , and the back connecting plate 62 is provided with a limiting block 7 . The positioning plate 8 is used to abut against the limiting block 7 to limit the adjustment angle of the back connecting plate 62 .

[0043] The cooperation between the positioning plate 8 and the limiting block 7 controls the maximum or minimum adjustment angle of the single chair backrest.

[0044] like Figure 1 As shown, in this embodiment, the back transmission rod 3 is provided with a second connection hole 31. When the single chair is finished, the second connection hole 31 is used to connect other parts, such as a hanging plate, a pad, etc., to facilitate production and assembly.

[0045] All technical features in this embodiment can be freely combined according to actual needs.

[0046] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the scope of protection of the present invention.

Claims

1. A leisure electric single chair frame, characterized by: The vehicle comprises a seat frame, a leg transmission rod, a back transmission rod, a leg driving device, a back driving device and two folding and telescopic mechanisms; the folding and telescopic mechanism comprises a leg telescopic assembly and a back connecting plate; the leg telescopic assembly comprises a first leg connecting rod, a second leg connecting rod, a third leg connecting rod, a fourth leg connecting rod and a leg supporting frame; The leg driving device and the back driving device are respectively mounted on the seat frame, the two ends of the leg transmission rod are respectively hinged to the leg telescopic components of the two folding and telescopic mechanisms, the two ends of the back transmission rod are respectively connected to the back connecting plates of the two folding and telescopic mechanisms, and the back connecting plates are hinged to the seat frame; the leg driving device is used to drive the leg transmission rod to rotate to drive the leg telescopic components to extend or retract; the back driving device is used to drive the back transmission rod to rotate to drive the back connecting plate to extend or retract; One end of the first leg connecting rod is hinged to the seat frame, the other end of the first leg connecting rod is hinged to one end of the second leg connecting rod, the other end of the second leg connecting rod is hinged to the leg supporting bracket, and the middle part of the second leg connecting rod is hinged to the middle part of the third leg connecting rod; one end of the third leg connecting rod is hinged to one end of the leg transmission rod, the other end of the third leg connecting rod is hinged to one end of the fourth leg connecting rod, and the other end of the fourth leg connecting rod is hinged to the leg supporting bracket.

2. The electric leisure chair frame according to claim 1, characterized in that: The seat frame includes a drive device mounting tube and two frame plates; both ends of the drive device mounting tube are respectively connected to the two frame plates; the leg drive device and the back drive device are respectively installed on the drive device mounting tube; One end of the first leg connecting rod is hinged to one end of the frame plate; and the back connecting plate is hinged to the other end of the frame plate.

3. The electric leisure chair frame according to claim 2, characterized in that: The two frame plates are respectively connected with iron sheets, and the iron sheets are provided with a plurality of mounting holes.

4. The electric leisure chair frame according to claim 2, characterized in that: The seat frame is further provided with at least two frame bars, both ends of which are detachably connected to the two frame plates; the two frame plates are connected to the two frame bars to form a square frame shape.

5. A leisure electric single chair frame according to any one of claims 1 to 4, characterized in that: The back connecting plates of the two folding and telescopic mechanisms are bent in directions approaching each other.

6. The electric leisure chair frame according to claim 5, characterized in that: The back connecting plate includes a first connecting portion, a curved portion and a backrest connecting portion; the curved portion is respectively connected to the first connecting portion and the backrest connecting portion, the first connecting portion is hinged to the seat frame, and the back transmission rod is connected to the first connecting portion.

7. The electric leisure chair frame according to claim 6, characterized in that: The first connecting portion is provided with a first connecting hole.

8. The electric leisure chair frame according to claim 1, characterized in that: The seat frame is connected with a positioning plate, and the back connecting plate is provided with a limiting block. The positioning plate is used to abut against the limiting block to limit the adjustment angle of the back connecting plate.

9. The electric leisure chair frame according to claim 1, characterized in that: The back transmission rod is provided with a second connecting hole.