TREA

SOFA WITH RETRACTABLE AND ELEVATABLE MECHANISM

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Information

  • Patent Application
  • 20250098864
  • Publication Number
    20250098864
  • Date Filed
    September 26, 2023
    a year ago
  • Date Published
    March 27, 2025
    a month ago
  • CPC
    • A47C7/541
  • International Classifications
    • A47C7/54
Information
Abstract
The present disclosure provides a sofa with a retractable-and-elevatable mechanism including a sofa component and a retractable-and-elevatable component; the sofa component includes an armrest box connected to both sides of a sofa seat, an upper of the armrest box is provided with an armrest board; the retractable-and-elevatable component is provided between a bottom of the armrest box and a lower surface of the armrest board, and the armrest board can be controlled to rotate to a front of the sofa seat and convert into a table board through the retractable-and-elevatable component. Due to a use of the retractable-and-elevatable component, which solves a problem that a sofa armrest is fixed and is inconvenient rotation and adjustment, thereby meeting people's learning or work needs on the sofa, and the retractable-and-elevatable component is hidden inside the armrest box without affecting an original aesthetics of the sofa.
Description
TECHNICAL FIELD

The present disclosure relates to the technologies field of furniture, and in particular, to a sofa with a retractable-and-elevatable mechanism.


BACKGROUND

Sofa is a kind of soft upholstered furniture, which is a multi-seat chair with cushions, a back chair with springs or thick foam plastics, etc., and has arms on both sides.


The armrests installed on the side of the sofa in related technologies are usually fixed (that is, they are usually a plate-like structure fixed on the side of the sofa seat, with soft wrapping materials added on the outer), and cannot be rotated or adjusted. When people need to study or work on the sofa, they can only place books or computers on a coffee table. The height of the coffee table renders it difficult for people to obtain a comfortable sitting posture, thereby affecting their work efficiency, and a skewed sitting posture can harm people's physical health.


Therefore, the present application specifically designs a sofa with a retractable-and-elevatable mechanism that can be used for studying or working on the sofa to solve the above problems.


SUMMARY

In order to overcome the shortcoming in related art that a sofa armrest is difficult to convert into a table board, embodiments of the present application provide a sofa with a retractable-and-elevatable mechanism, which meets the needs of people for learning or working on the sofa without affecting its original aesthetics when not in use.


The technical solution adopted by an embodiment of the present application to solve the technical problem is: a sofa with a retractable-and-elevatable mechanism, including a sofa component and a retractable-and-elevatable component;

    • the sofa component includes an armrest box connected to both sides of a sofa seat, and an upper of the armrest box is provided with an armrest board;
    • the retractable-and-elevatable component is provided between a bottom of the armrest box and a lower surface of the armrest board, and the armrest board can be controlled to rotate to a front of the sofa seat and convert it into a table board through the retractable-and-elevatable component.


In an embodiment of the present disclosure, the retractable-and-elevatable component includes a base sleeve installed at the bottom of the armrest box, where the base sleeve is internally sleeved with a hollow external threaded shaft, and a rising pin capable of matching a threaded track of the external threaded shaft is further installed on an inner wall of the base sleeve, the external threaded shaft can be lifted and lowered inside the base sleeve through the rising pin, an inner of the external threaded shaft is tightly sleeved with a support cylinder, a top of the support cylinder is fixedly connected with a bottom of the armrest board.


In an embodiment of the present disclosure, an outer wall of the support cylinder is further tightly sleeved with a base sleeve pin, and a bottom of the base sleeve pin is provided with buckles at equal intervals, and an upper inner wall of the base sleeve is provided with buckle grooves at equal intervals that match with the buckles.


In an embodiment of the present disclosure, a top end of the base sleeve is further provided with hole positions at equal intervals that correspond to the buckle grooves and used as a reference, and the base sleeve pin does not cover the hole position.


In an embodiment of the present disclosure, a screw A is installed in the hole position, and a screw hole A is provided at the bottom of the armrest box that is suitable for the screw.


In an embodiment of the present disclosure, a side wall of the support cylinder is provided with arc-shaped grooves at equal intervals, and the arc-shaped slot (241) is provided with a screws B, and screw holes B corresponding to screws B are provided with at the bottom of the armrest board at equal intervals.


In an embodiment of the present disclosure, a bottom of an outer wall of the external threaded shaft is further provided with a longitudinal groove connected to an outer wall of the threaded track thereof, and the external threaded shaft is compatible with the rising pin.


In an embodiment of the present disclosure, the armrest board is provided with a groove, and a rolled edge metal cup holder is fixed inside the groove.


The advantages of the embodiments of the present application are:

    • due to a use of a retractable-and-elevatable mechanism, it is convenient to rotate the armrest board on the armrest box to a front of the sofa seat and convert it into a table board, which solves problems that a sofa armrest is fixed and inconvenient rotation and adjustment, thereby meeting people's learning or work needs on the sofa, and the retractable-and-elevatable mechanism component is hidden inside the armrest box without affecting an original aesthetics of the sofa.
    • at the same time, the armrest box is hollow, rendering it easy to use its internal space as a storage space, enhancing a functionality of the sofa armrest.
    • the design of the rolled edge metal cup holder facilitates a stable placement of a quilt on the armrest board, enhancing its functionality.





BRIEF DESCRIPTION OF DRAWINGS


FIG. 1 is a schematic diagram of an external three-dimensional structure of a sofa with a retractable-and-elevatable mechanism provided in an embodiment of the present application.



FIG. 2 is a first structural schematic diagram of a three-dimensional of a sofa adjustment state of the sofa with a retractable-and-elevatable mechanism provided in an embodiment of the present application.



FIG. 3 is a second structural schematic diagram of the three-dimensional of the sofa adjustment state of the sofa with a retractable-and-elevatable mechanism provided in an embodiment of the present application.



FIG. 4 is a third structural schematic diagram of the three-dimensional of the sofa adjustment state of the sofa with a retractable-and-elevatable mechanism provided in an embodiment of the present application.



FIG. 5 is a fourth structural schematic diagram of the three-dimensional of the sofa adjustment state of the sofa with a retractable-and-elevatable mechanism provided in an embodiment of the present application.



FIG. 6 is a schematic diagram of a partially enlarged structure at position A in FIG. 5 provided by the embodiment of the present application.



FIG. 7 is a schematic diagram of an assembly and adjustment step of the retractable-and-elevatable mechanism component provided in an embodiment of the present application.



FIG. 8 is a first schematic diagram of a connection relationship structure between an external threaded shaft, a support cylinder, and a base sleeve pin provided in an embodiment of the present application.



FIG. 9 is a second schematic diagram of the connection relationship structure between the external threaded shaft, the support cylinder, and the base sleeve pin provided in an embodiment of the present application.



FIG. 10 is a schematic diagram of an external three-dimensional structure of the base sleeve provided in an embodiment of the present application.



FIG. 11 is a schematic diagram of a cross-sectional structure of the base sleeve provided in the embodiment of the present application.



FIG. 12 is a schematic diagram of a cross-sectional structure of the support cylinder provided in an embodiment of the present application.



FIG. 13 is a schematic diagram of a top view structure of the support cylinder provided in an embodiment of the present application.



FIG. 14 is a schematic diagram of a three-dimensional structure of the base sleeve pin provided in an embodiment of the present application.



FIG. 15 is a schematic structural diagram of a bottom of the base sleeve provided in an embodiment of the present application.



FIG. 16 is a schematic diagram of a longitudinal section structure of the base sleeve pin provided in an embodiment of the present application.





NUMERAL REFERENCE






    • 1—Sofa component; 11—Armrest box; 12—Armrest board; 2—Retractable-and-elevatable component; 21—Base sleeve; 211—Buckle groove; 212—Hole position; 22—External threaded shaft; 221—Longitudinal groove; 23—Rising pin; 24—Support cylinder; 241—Arc-shaped slot; 25—Base sleeve pin; 251—Buckle; 3—Rolled edge metal cup holder.





DETAILED DESCRIPTION

The technical solution in the embodiment of the present application is to solve the shortcoming that a soft armrest is difficulty converting into a table board in related technologies. The overall idea is as follows.


Embodiment 1

Please refer to FIGS. 1 to 5, a sofa with a retractable-and-elevatable mechanism, including a sofa component 1 and a retractable-and-elevatable component 2.


The sofa component 1 includes an armrest box 11 connected to both sides of a sofa seat, an upper of the armrest box 11 is provided with an armrest board 12. From a perspective of FIGS. 4 to 5, it can be seen that the armrest box 11 is hollow, which renders it easy to use its internal space as a storage space and improves a functionality of the sofa armrest.


The retractable-and-elevatable component 2 is provided between a bottom of the armrest box 11 and a lower surface of the armrest board 12, and the armrest board 12 can be controlled to rotate to a front of the sofa seat and convert it into a table board through the retractable-and-elevatable component 2. Due to a use of the retractable-and-elevatable component 2, it is easy to rotate the armrest board 12 on the armrest box 11 to the front of the sofa seat and convert it into a table board, which solves the problem that a sofa armrest is fixed and inconvenient rotation adjustment, thereby meeting people's learning or work needs on the sofa, and the retractable-and-elevatable component 2 is hidden inside the armrest box 11 without affecting an original aesthetics of the sofa.


Please refer to FIGS. 5 to 16. The retractable-and-elevatable component 2 includes a base sleeve 21 installed at the bottom of the armrest box 11. The base sleeve 21 is internally sleeved with a hollow external threaded shaft 22, and a rising pin 23 capable of matching a threaded track of the external threaded shaft 22 is further installed on an inner wall of the base sleeve 21. The external threaded shaft 22 can be lifted and lowered inside the base sleeve 21 through the rising pin 23, an inner of the external threaded shaft 22 is tightly sleeved with a support cylinder 24, a top of the support cylinder 24 is fixedly connected with a bottom of the armrest board 12.


An outer wall of the support cylinder 24 is further tightly sleeved with a base sleeve pin 25. A bottom of the base sleeve pin 25 is provided with buckles 251 at equal intervals, and an upper inner wall of the base sleeve 21 is provided with buckle grooves 211 at equal intervals that match the buckle 251. The matching between the buckle 251 and the buckle groove 211 facilitates an installation of the base sleeve pin 25 and the support cylinder 24. The use of the base sleeve pin 25 limits a relative position between the support cylinder 24 and the base sleeve 21, allowing a threaded track of the external threaded shaft 22 to rotate steadily up and down through the cooperation with the rising pin 23.


It should be noted that the support cylinder 24 is made of metal material, and the base sleeve 21, external threaded shaft 22, and base sleeve pin 25 are all plastic materials,


An installation and adjustment process of base sleeve 21, external threaded shaft 22, base sleeve pin 25, and support cylinder 24 is mainly shown in FIG. 7. At the same time, it can be combined with other drawings in FIGS. 5 to 16 besides FIG. 7. The installation and adjustment steps are explained as follows.


S1. Inserting the base sleeve pin 25 from the bottom of the support cylinder 24 onto its outer wall.


S2. Inserting the external threaded shaft 22 from the bottom of the support cylinder 24 onto its outer wall.


S3. Placing the longitudinal groove 221 on the outer surface of the external threaded shaft 22 directly above the rising pin 23 on the inner wall of the base sleeve 21, and then inserting the assembled structure in step S2 until the rising pin 23 moves from the longitudinal groove 221 into the threaded track of the external threaded shaft 22.


Through this step, it is also obvious that the above structures (support cylinder 24, base sleeve pin 25, external threaded shaft 22, and base sleeve 21) can be disassembled and replaced separately through the matching of the longitudinal groove 221, the rising pin 23, and the threaded track of the outer wall of the external threaded shaft 22, thereby reducing cost of disassembly and replacement.


S4. Squeezing and connecting the buckle 251 with the corresponding buckle groove 211, as shown in FIG. 16. There is an opening gap in a middle of the buckle 251, which is easy to deform and squeeze into the buckle groove 211 in FIG. 10, and achieving the fixation of the base sleeve pin 25 and the base sleeve 21.


S5. Rotating the armrest board 12, and the external threaded shaft 22 rotates and moves up in the base sleeve 21 through the combination of the threaded track and the rising pin 23, facilitating the adjustment of the armrest board 12 to the front of the sofa seat to form a table, and meeting people's learning or working needs on the sofa.


This completes the installation and adjustment of the base sleeve 21, external threaded shaft 22, base sleeve pin 25, and support cylinder 24.


A top end of the base sleeve 21 is further provided with hole positions 212 at equal intervals that correspond to the buckle grooves 211 and used as a reference, and the base sleeve pin 25 does not cover the hole position 212. The hole position 212 is designed to correspond to the buckle groove 211, rendering it easy to use the hole position 212 as a reference and snap the buckle 251 into the corresponding buckle groove 211.


A screw A (not shown) is installed in hole position 212, and a screw hole A (not shown) is provided at the bottom of armrest box 11 that is suitable for the screw. The setting of screw A in hole position 212 and screw hole A at the bottom of armrest box 11 facilitates the fixation of armrest box 11 with base sleeve 21.


A side wall of the support cylinder 24 is provided with arc-shaped slots 241 at equal intervals, the arc-shaped slot 241 is provided with a screw B (not shown). At a bottom of the armrest board 12, screw holes B (not shown) corresponding to screws B are provided at equal intervals. The combination of screw B and screw hole B facilitates the fixation of support cylinder 24 and the bottom of armrest board 12. At the same time, a design of the arc-shaped slot 241 renders the installation of support cylinder 24 and armrest board 12 more convenient.


A bottom of an outer wall of the external threaded shaft 22 is further provided with a longitudinal groove 221 connected to the outer wall of threaded track thereof, and the external threaded shaft 22 is compatible with the rising pin 23. The design of longitudinal groove 221 renders it easy for the rising pin 23 to enter the threaded track of the external threaded shaft 22 when the external threaded shaft 22 is inserted downwards, so as to adjust an angle and height of the armrest board 12 with the help of the combination of the threaded track of the external threaded shaft 22 and the external threaded shaft 22, and also to retract the armrest board 12 to the upper of the armrest box 11.


Please refer to FIG. 1. There is a groove (not shown) on the armrest board 12, and there is a rolled edge metal cup holder 3 fixed inside the groove. Among them, the design of the rolled edge metal cup holder 3 facilitates a stable placement of a quilt on the armrest board 12, improving the functionality of the armrest board 12.


When in use, the armrest board 12 is rotated, and the external threaded shaft 22 is rotated and moved up in the base sleeve 21 through the combination of the threaded track and the rising pin 23. This facilitates the adjustment of the armrest board 12 to the front of the sofa seat to form a table board, and also facilitates the rotation and contraction of the armrest board 12 to the upper of the armrest box 11. The overall adjustment is relatively simple and convenient.


Finally, it should be noted that the above embodiments are only intended to clearly illustrate the examples provided in the present application, rather than limiting the implementation methods. For ordinary technical personnel in the field, different forms of changes or substitutions can be made based on the above embodiments. There is no need and cannot be an exhaustive list of all implementation methods here. The obvious changes or substitution arising from this are still within the protection scope of the present application.

Claims
  • 1. A sofa with a retractable-and-elevatable mechanism, comprising: a sofa component (1), wherein the sofa component (1) comprises an armrest box (11) connected to both sides of a sofa seat, and an upper of the armrest box (11) is provided with an armrest board (12); anda retractable-and-elevatable component (2), wherein the retractable-and-elevatable component (2) is provided between a bottom of the armrest box (11) and a lower surface of the armrest board (12), and the armrest board (12) can be controlled to rotate to a front of the sofa seat and convert it into a table board through the retractable-and-elevatable component (2).
  • 2. The sofa with a retractable-and-elevatable mechanism according to claim 1, the retractable-and-elevatable component (2) comprises a base sleeve (21) installed at the bottom of the armrest box (11), wherein the base sleeve (21) is internally sleeved with a hollow external threaded shaft (22), and a rising pin (23) capable of matching a threaded track of the external threaded shaft (22) is further installed on an inner wall of the base sleeve (21), the external threaded shaft (22) can be lifted and lowered inside the base sleeve (21) through the rising pin (23), and an inner of the external threaded shaft (22) is tightly sleeved with a support cylinder (24), a top of the support cylinder (24) is fixedly connected with a bottom of the armrest board (12).
  • 3. The sofa with a retractable-and-elevatable mechanism according to claim 2, wherein an outer wall of the support cylinder (24) is further tightly sleeved with a base sleeve pin (25), and a bottom of the base sleeve pin (25) is provided with buckles (251) at equal intervals, and an upper inner wall of the base sleeve (21) is provided with buckle grooves (211) at equal intervals that match with the buckles (251).
  • 4. The sofa with a retractable-and-elevatable mechanism according to claim 3, wherein a top end of the base sleeve (21) is further provided with hole positions (212) at equal intervals that correspond to the buckle grooves (211) and used as a reference, and the base sleeve pin (25) does not cover the hole position (212).
  • 5. The sofa with a retractable-and-elevatable mechanism according to claim 4, wherein a screw A is installed in the hole position (212), and a screw hole A is provided at the bottom of the armrest box (11) that is suitable for the screw.
  • 6. The sofa with a retractable-and-elevatable mechanism according to claim 2, wherein a side wall of the support cylinder (24) is provided with arc-shaped slots (241) at equal intervals, the arc-shaped slot (241) is provided with a screw B, and screw holes B corresponding to screws B are provided at the bottom of the armrest board (12) at equal intervals.
  • 7. The sofa with a retractable-and-elevatable mechanism according to claim 2, wherein a bottom of an outer wall of the external threaded shaft (22) is further provided with a longitudinal groove (221) connected to an outer wall of the threaded track thereof, and the external threaded shaft (22) is compatible with the rising pin (23).
  • 8. The sofa with a retractable-and-elevatable mechanism according to claim 1, wherein the armrest board (12) is provided with a groove, and a rolled edge metal cup holder (3) is fixed inside the groove.