Foldable sofa framework structure

Abstract

The utility model relates to the technical field of sofas, in particular to a foldable sofa framework structure which comprises a rectangular frame, supporting columns are fixedly installed at the four corners of the bottom of the rectangular frame, and a plurality of containing grooves are formed in the upper surfaces of plate bodies on the front side and the rear side of the rectangular frame. A plurality of carrying grooves are formed in the upper surfaces of plate bodies on the left side and the right side of the rectangular frame, a framework rod is rotationally connected to the groove wall of each storage groove located on the rear side through a rotating shaft, the framework rods and the storage grooves are clamped and matched, and a plurality of longitudinal carrying rods are fixedly installed on the multiple framework rods; and rod bodies at the ends of the longitudinal carrying rods are clamped and matched with the carrying grooves, threaded holes are formed in rod bodies at the two ends of the framework rods, supporting assemblies are arranged at the threaded holes and comprise supporting legs, studs are fixedly installed at the front ends of the supporting legs, and the studs are in threaded connection with the threaded holes. The folding chair can be folded conveniently, and meanwhile stable supporting operation can be carried out.

Description

TECHNICAL FIELD

[0001] The utility model relates to sofa technical field, specifically, relate to a kind of foldable sofa framework structure. BACKGROUND

[0002] With the diversification of modern living space and the improvement of people's space utilization efficiency requirements, foldable furniture is more and more favored by consumers, and sofa is one of the important furniture in living room. The traditional fixed structure sofa has great disadvantages in space occupation. When the living space is limited or needs to be flexibly changed, it cannot meet the user's flexible adjustment demand for space.

[0003] Some existing foldable sofas have many deficiencies in their framework structure design. For example, most foldable sofa framework structures can complete folding operation, but the number of framework rods supported on them is small, usually 3-4, and the framework rods are all single horizontally arranged, lacking longitudinal further compression-resistant supporting plates, which has the defect of insufficient support. In addition, after storage, the frame bodies of the two folding parts cannot keep the top surface on one entire plane, which will affect the comfort when sitting and bring inconvenience to the user. In view of this, we propose a foldable sofa framework structure. SUMMARY

[0004] The utility model aims at providing a foldable sofa framework structure to solve the defects in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A foldable sofa framework structure comprises a rectangular frame, a support column vertically arranged is fixedly installed at each of the four corner parts of the bottom of the rectangular frame, a plurality of storage slots arranged at equal intervals are arranged on the upper surfaces of the front and rear side plates of the rectangular frame, a plurality of loading slots are arranged on the upper surfaces of the left and right side plates of the rectangular frame, a framework rod is rotatably connected to the slot wall of each storage slot on the rear side through a rotating shaft, the framework rod is clamped and matched with the storage slot, a plurality of longitudinal loading rods perpendicular to the framework rods are fixedly installed on the plurality of framework rods, the longitudinal loading rods are clamped and matched with the loading slots at the end rod bodies, threaded holes are arranged at both ends of the framework rod, a support assembly is arranged at the threaded hole part, the support assembly comprises a support leg, a threaded hole is arranged at the front end of the support leg, and the threaded hole is threadedly connected with the threaded hole.

[0007] Preferably, both ends of the threaded hole are connected with the outside, and the threaded hole is used for screwing from any hole opening part of the threaded hole.

[0008] Preferably, the front end of the support leg is further fixedly installed with a limiting disc, the limiting disc is located at the rear side of the stud, and the limiting disc abuts against the side surface of the framework rod.

[0009] Preferably, a knob is fixedly installed between the rear side surface of the limiting disc and the support leg, and the cross section of the knob is hexagonal.

[0010] Preferably, the front end of the support leg is fixedly installed with a threaded cylinder, a threaded handle is threadedly connected to the threaded cylinder, and the front end of the threaded handle is fixedly installed with a rubber pad.

[0011] Preferably, a fixing disc is fixedly installed between the rear end of the threaded cylinder and the support leg, and the outer diameter of the fixing disc is greater than the outer diameter of the threaded handle.

[0012] Preferably, an anti-skid layer is arranged on the outer surface of the threaded handle, and a spring is arranged in the threaded cylinder.

[0013] Preferably, an annular groove in communication with the outside is arranged at the front end of the threaded cylinder, the rear end of the spring is fixedly installed on the groove wall of the annular groove, the front end of the spring is fixedly installed with an end disc, and the end disc is located in the threaded handle.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] 1、The rectangular frame, the storage groove and the mounting groove are arranged, the framework rod and the longitudinal mounting rod are conveniently installed and stored, when the sofa is used, the framework rod can be easily turned outwards to complete unfolding operation, when storage, the framework rod can be turned back to the storage groove, space is saved, the sofa structure is conveniently and flexibly adjusted, and space is efficiently utilized.

[0016] 2、The multiple framework rods and longitudinal mounting rods are arranged, the support strength is improved, the top surfaces of the rectangular frame, the framework rod and the longitudinal mounting rod are located on the same plane after the framework rod and the longitudinal mounting rod are stored in the storage groove and the mounting groove, the comfort is improved, the support assembly is matched to support, and the effects of stable support and improved comfort are achieved.

[0017] 3, The utility model discloses a threaded connection is installed in the both ends of skeleton rod through stud and screw hole, and the both ends of screw hole communicate with the outside, can screw into the stud from any orifice, and the installation mode is flexible and convenient, realizes the support operation to the skeleton rod after unfolding and storage, simultaneously, the front end fixed limiting disc of support leg can prevent the support leg from being screwed in excessively, guarantees the installation stability, reaches the effect that the sofa skeleton support strength is enhanced, and the use safety is improved, through setting up threaded cylinder, threaded handle, spring and other structures on the support leg, the height of support leg is realized fine adjustment, and the rubber pad can increase the friction with the ground, reaches the effect that the sofa use comfort is improved, and a variety of use scenes are adapted. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is whole structure schematic diagram of the utility model;

[0019] Figure 2 It is structure schematic diagram of support assembly of the utility model;

[0020] Figure 3 It is explosion structure schematic diagram of support assembly of the utility model;

[0021] Figure 4 It is partial structure schematic diagram of support assembly of the utility model;

[0022] The meaning of each reference numeral in the drawing is as follows:

[0023] 1, rectangular frame;10, storage groove;11, support column;12, carrying groove;

[0024] 2, skeleton rod;20, longitudinal carrying rod;21, screw hole;

[0025] 3, support assembly;30, support leg;31, stud;32, limiting disc;33, knob;34, fixed disc;35, threaded cylinder;351, annular groove;36, spring;361, end disc;37, threaded handle;371, antiskid layer;38, rubber pad. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] Please refer to Figures 1-4The utility model provides a technical scheme: a kind of foldable sofa framework structure, including rectangular frame 1, the bottom four corner parts of rectangular frame 1 are all fixedly installed with the support column 11 being vertically arranged, realize stable supporting operation using support column 11;

[0028] Specifically, the upper surface of the front and rear side plate bodies of the rectangular frame 1 is provided with a plurality of storage grooves 10 arranged at equal intervals, the upper surface of the left and right side plate bodies of the rectangular frame 1 is provided with a plurality of loading grooves 12, each storage groove 10 located at the rear side is rotatably connected with a framework rod 2 through a rotating shaft, the framework rod 2 is clamped and matched with the storage groove 10, a plurality of longitudinal loading rods 20 perpendicular to the framework rod 2 are fixedly installed on the plurality of framework rods 2, the longitudinal loading rod 20 is clamped and matched with the loading groove 12 at the end rod body, so that the framework rod 2 can be flipped outward to realize unfolding, and folding opening and storage operations are completed; in addition, after the framework rod 2 is stored in the storage groove 10, and the longitudinal loading rod 20 is stored in the loading groove 12, the top surfaces of the rectangular frame 1, the framework rod 2 and the longitudinal loading rod 20 are located on the same plane, the existence of the protruding part is reduced, and the comfort during subsequent sitting is improved.

[0029] Specifically, the two end rod bodies of the framework rod 2 are provided with threaded holes 21, the support assembly 3 is arranged at the threaded hole 21, the support assembly 3 comprises a support leg 30, a threaded hole 21 is arranged at the front end of the support leg 30, the threaded hole 21 is threadedly connected with the threaded hole 21, and the sofa framework is additionally supported, and the support strength of the sofa as a whole is enhanced.

[0030] In the embodiment, the distance between the two framework rods 2 adjacent to each other is 10 cm to 20 cm, and the distance between the two longitudinal loading rods 20 adjacent to each other is 20 cm to 40 cm, so that the number of the framework rods 2 is greater than 8, and the number of the longitudinal loading rods 20 is greater than 2, stable supporting operation can be realized, and in addition, the end of each framework rod 2 is provided with a threaded hole 21, at this time, a corresponding number of support assemblies 3 can be selected for supporting, and the stability during supporting is improved.

[0031] In the embodiment, the two ends of the threaded hole 21 are connected with the outside, and the threaded hole 31 is used to be screwed into the threaded hole 21 from any orifice part, so that the support leg 30 can support from the inside or the outside of the framework rod 2 after the framework rod 2 is folded and stored and unfolded, more convenience and flexibility are provided for installation.

[0032] Specifically, the front end of the support leg 30 is further fixedly installed with a limiting disc 32, the limiting disc 32 is located at the rear side of the threaded hole 31, the limiting disc 32 abuts against the side surface of the framework rod 2, and the support leg 30 is effectively prevented from being screwed in too much, so that the stability of installation and the reliability of the connection between the support leg 30 and the framework rod 2 are ensured.

[0033] Furthermore, a knob 33 is fixedly installed between the rear side of the limiting plate 32 and the support leg 30. The knob 33 has a hexagonal cross-section, which makes it convenient for users to operate with tools such as wrenches, and to screw the support leg 30 into or out of the threaded hole 21 with less effort, thus improving the convenience of installation and disassembly.

[0034] In addition, a threaded cylinder 35 is fixedly installed at the front end of the support leg 30. A threaded handle 37 is threadedly connected to the threaded cylinder 35. A rubber pad 38 is fixedly installed at the front end of the threaded handle 37. Rotating the threaded handle 37 allows the threaded cylinder 35 to move up and down, thereby flexibly adjusting the support height according to different ground conditions and improving the adaptability of the sofa in different usage scenarios.

[0035] It is worth noting that a fixing plate 34 is fixedly installed between the rear end of the threaded cylinder 35 and the support leg 30. The outer diameter of the fixing plate 34 is larger than the outer diameter of the threaded handle 37, which can effectively prevent the threaded handle 37 from being excessively screwed into the threaded cylinder 35, thus ensuring the reliability and service life of the adjustment structure.

[0036] It is worth noting that an anti-slip layer 371 is provided on the outer surface of the threaded handle 37, making it easier for users to grip and rotate the threaded handle 37, and making operation more convenient. A spring 36 is provided inside the threaded cylinder 35, and an annular groove 351 with its front end connected to the outside is provided inside the threaded cylinder 35. The rear end of the spring 36 is fixedly installed on the groove wall of the annular groove 351, and an end plate 361 is fixedly installed on the front end of the spring 36. The end plate 361 is located inside the threaded handle 37, which further ensures the installation stability of the spring 36 inside the threaded cylinder 35. Under the clamping force of the spring 36, as the rubber pad 38 is supported on the ground, it can be ensured that the threaded handle 37 and the threaded cylinder 35 are not prone to loosening.

[0037] When using the foldable sofa frame structure of this utility model, the rectangular frame 1 is placed in a suitable position, and the support columns 11 at the four corners at the bottom can provide stable support to ensure the frame is stable. Then, the frame rod 2 is flipped outward from the storage slot 10 on the front and rear side panels of the rectangular frame 1, so that the frame rod 2 is disengaged from the storage slot 10. At this time, the longitudinal mounting rod 20 on the frame rod 2 is also unfolded.

[0038] Then, pick up the support leg 30 and screw the stud 31 at its front end into the corresponding side of the threaded hole 21 on the skeleton rod 2, so as to use the support component 3 to support the unfolded skeleton rod 2 and enhance the overall strength; during installation, the limiting plate 32 will abut against the side of the skeleton rod 2 to prevent the support leg 30 from being screwed in too much.

[0039] Next, adjust the support height. Depending on the ground conditions, turn the threaded handle 37 to move it up and down at the threaded cylinder 35, thereby adjusting the height of the rubber pad 38 and ensuring that the rubber pad 38 is stably supported on the ground.

[0040] When storing, unscrew the support component 3, then install the support component 3 on the skeleton rod 2 from the inside of the skeleton rod 2, and then fold the skeleton rod 2 and the longitudinal mounting rod 20 inward. At this time, the skeleton rod 2 is stored horizontally in the storage slot 10, and the end of the longitudinal mounting rod 20 is stored in the mounting slot 12. The support component 3 continues to support the skeleton rod 2 from the bottom position of the rectangular frame 1 to complete the storage operation.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A foldable sofa frame structure, comprising a rectangular frame (1), characterized in that: The rectangular frame (1) has vertically arranged support columns (11) fixedly installed at the four corners of its bottom. Multiple equally spaced storage slots (10) are provided on the upper surfaces of the front and rear side panels of the rectangular frame (1). Multiple mounting slots (12) are provided on the upper surfaces of the left and right side panels of the rectangular frame (1). Each storage slot (10) on the rear side has a rotatable frame rod (2) connected to its wall via a pivot. The frame rod (2) engages with the storage slot (10). Multiple frame rods (11...) 2) Multiple longitudinal mounting rods (20) perpendicular to each other are fixedly installed on the frame rod (2). The end of the longitudinal mounting rod (20) is engaged with the mounting groove (12). Both ends of the frame rod (2) are provided with threaded holes (21). A support component (3) is provided at the threaded hole (21). The support component (3) includes a support leg (30). A stud (31) is fixedly installed at the front end of the support leg (30). The stud (31) is threadedly connected to the threaded hole (21).

2. The foldable sofa frame structure according to claim 1, characterized in that: Both ends of the threaded hole (21) are connected to the outside, and the stud (31) is used to be screwed in from any opening of the threaded hole (21).

3. The foldable sofa frame structure according to claim 1, characterized in that: The front end of the support leg (30) is also fixedly installed with a limiting plate (32), which is located on the rear side of the stud (31) and abuts against the side of the skeleton rod (2).

4. The foldable sofa frame structure according to claim 3, characterized in that: A knob (33) is fixedly installed between the rear side of the limiting plate (32) and the support leg (30), and the knob (33) has a hexagonal cross-section.

5. The foldable sofa frame structure according to claim 1, characterized in that: A threaded cylinder (35) is fixedly installed at the front end of the support leg (30), and a threaded handle (37) is threadedly connected to the threaded cylinder (35). A rubber pad (38) is fixedly installed at the front end of the threaded handle (37).

6. The foldable sofa frame structure according to claim 5, characterized in that: A fixing plate (34) is fixedly installed between the rear end of the threaded cylinder (35) and the support leg (30), and the outer diameter of the fixing plate (34) is larger than the outer diameter of the threaded handle (37).

7. The foldable sofa frame structure according to claim 6, characterized in that: An anti-slip layer (371) is provided on the outer surface of the threaded handle (37), and a spring (36) is provided inside the threaded cylinder (35).

8. The foldable sofa frame structure according to claim 7, characterized in that: The threaded cylinder (35) is provided with an annular groove (351) whose front end is connected to the outside. The rear end of the spring (36) is fixedly installed on the groove wall of the annular groove (351). The front end of the spring (36) is fixedly installed with an end plate (361), which is located inside the threaded handle (37).

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