Convenient and free splicing chair

Abstract

The application discloses a convenient and free splicing chair, which comprises supporting legs, a seat plate and a backrest, the supporting legs comprise chair legs one and two which are fixedly spliced at ends, wherein the outer sides of the chair legs one and two are formed with protrusions, accommodating clamping grooves are formed in the two sides of the seat plate, the accommodating clamping grooves are respectively aligned with the supporting legs, and are supported by the protrusions on the two sides of the supporting legs from top to bottom, the upper end of the chair leg one is provided with an insertion block, and the bottom of the backrest is inserted with the insertion block through a slot. The application has a clever structure design, all the structures are integrally formed in a direct splicing mode, and bolts and other external connecting members are basically not needed at assembling positions, so that the chair is convenient and free to assemble manually and has the stability of the whole body; through the improved design of the chair leg two, the seat plate and the backrest can be relatively rotated and moved backward, and then the backrest is smoothly moved backward, so that the angle is adjusted according to the will of a user in a comfortable posture. The seat can realize the inclination function while realizing the simple structure of the seat.

Description

Technical Field

[0001] This invention relates to the field of furniture technology, specifically a convenient and freely modular chair. Background Technology

[0002] Currently, chairs sold on the market are inconvenient to disassemble and transport, and are also bulky. For example, authorization notice number CN103405058B, entitled "A Chair," includes a chair body and a component disposed at the bottom of the chair body. The chair body includes a seat and a backrest. The seat has a cushion on its upper surface and is connected to the legs via a connecting frame at the bottom. The legs are connected to the frame via slots and a screw, allowing for precise positioning and preventing rotation. The top bolts are also less prone to loosening. The bottom of the legs are on the same plane, making them safer and more comfortable to use, and easier to disassemble. The top and bottom of the legs are designed as concave frustums, facilitating easy insertion and preventing jamming. However, the lower support of this type of chair uses multiple bolts, making assembly difficult and prone to loosening, compromising overall stability. Furthermore, the chair's base, relying solely on four vertical legs, is unable to withstand the force of user movement and is more susceptible to damage.

[0003] This case arose in order to resolve the aforementioned issues. Summary of the Invention

[0004] Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a convenient and freely modular chair, solving the problems mentioned in the background section.

[0005] Technical solution To achieve the above objectives, the present invention provides the following technical solution: a convenient and freely combinable chair, comprising a support leg, a seat, and a backrest. The support leg comprises a first chair leg and a second chair leg whose ends are fixed together. Both the first and second chair legs have raised outer sides. The seat has receiving slots on both sides, which are aligned with the support legs and pass downwards to the raised areas on both sides of the support legs for support. The upper end of the first chair leg is fitted with an insert, and the bottom of the backrest is inserted into the insert through a slot.

[0006] As a preferred embodiment, further, through grooves are respectively opened at the same horizontal height of chair leg one and chair leg two, and support rod one is inserted into the through grooves; a fastening groove one is opened in the middle of support rod one, and support rod two, which is installed perpendicular to the support rod, is locked into the fastening groove one.

[0007] As a preferred embodiment, the first support rod extends through the outer sides of the first and second chair legs, and both ends of the second support rod extend to the outer sides of the first support rod.

[0008] As a preferred embodiment, the bottom of the receiving slot is further provided with communicating slots on both sides, and the outer part of the support rod one located on the chair leg one and the chair leg two is embedded in the slot; the vertical outer side of the receiving slot is provided with a communicating extension groove, and the support rod two located on the outer side of the support rod one is embedded in the extension groove.

[0009] As a preferred embodiment, the seat plate is further provided with a receiving groove that communicates with the receiving slots on both sides, and an inwardly extending groove is provided in the middle of the receiving groove. The middle part of the second support rod forms a protrusion, which is inserted into the groove during installation.

[0010] As a preferred embodiment, the insert block is further provided with screw holes, and the backrest is provided with slots on both sides. After the backrest is installed, the center of the slots is aligned with the screw holes, and the backrest is tightened by screwing in bolts.

[0011] As a preferred embodiment, the through groove is further provided at different heights of chair leg one and chair leg two, and the support rod two can be inserted in a corresponding manner to change the height of the seat.

[0012] As a preferred embodiment, the second chair leg serves as a rear-side support, comprising an inwardly bent angle at the bottom and a support leg at the bottom. The bottom end of the bent angle and the inner end of the support leg intersect each other, and the bent angle and the support leg are connected by either a spring rod or a cylinder.

[0013] The assembly method for the modular chair is as follows: First, insert the support rod one into the through groove of the chair leg one. Then, align the chair leg two with the side of the chair leg one and insert the support rod one into the through groove at the same height to form an integrated support leg. Insert both sides of support rod two into the middle of support rod one of the two spaced support legs; Align the receiving slots on both sides of the seat with the insert support rod 1 and support rod 2 until the receiving slot of the seat is aligned and inserted into support rod 2. 4. Insert the bottom ends of both sides of the chair into the upper end of the support rod, and connect the chair and the legs together with bolts.

[0014] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0015] 1. A convenient and freely modular chair with a clever structural design. Almost all components are directly spliced ​​together to form a whole, and there is basically no need for external connectors such as bolts at the assembly points. It is easy to assemble manually and freely without sacrificing the overall stability.

[0016] 2. A convenient and freely modular chair, through an improved design of the second leg, allows the seat and backrest to rotate relative to each other, thus enabling a smooth reclining motion and allowing for comfortable angle adjustment. The chair achieves a simple structural design while also providing a reclining function. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the modular chair of the present invention; Figure 2 This is a bottom-view schematic diagram of the present invention; Figure 3 This is a disassembly diagram of the present invention; Figure 4 This is a schematic diagram of the seat plate of the present invention; Figure 5 This is a side view of the improved splicing chair of the present invention.

[0018] In the diagram: 1. Chair backrest; 2. Seat; 3. Chair leg one; 4. Chair leg two; 41. Folding leg; 42. Support leg; 43. Cylinder; 5. Support rod one; 6. Through groove; 7. Bolt; 8. Hole groove; 9. Extension groove; 10. Support rod two; 11. Insert block; 12. Receiving slot; 13. Protrusion; 14. Buckle groove one; 15. Buckle groove two; 16. Slot; 17. Receiving groove; 18. Embedded groove. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0020] Example 1, see appendix Figure 1-4 As shown, a convenient and freely combinable chair includes a support leg, a seat 2, and a backrest 1. The support leg includes a first chair leg 3 and a second chair leg 4 whose ends are spliced ​​and fixed together. The outer sides of both the first chair leg 3 and the second chair leg 4 are raised. The seat 2 has receiving slots 12 on both sides, which are aligned with the support leg and pass down from above to the raised parts on both sides of the support leg for support. The upper end of the first chair leg 3 is equipped with a plug 11, and the bottom of the backrest 1 is inserted into the plug 11 through a slot.

[0021] A through groove 6 is provided at the same horizontal height of chair leg 3 and chair leg 4, and a support rod 5 is inserted into the through groove 6; a buckle groove 14 is provided in the middle of the support rod 5, and a support rod 20 installed perpendicular to the support rod is inserted into the buckle groove 14.

[0022] Support rod 15 passes through the outer side of chair leg 13 and chair leg 24, and both ends of support rod 210 extend to the outer side of support rod 15.

[0023] The bottom of the receiving slot 12 has two communicating slots 16 on both sides. The outer part of the support rod 5 located on the chair leg 3 and the chair leg 4 is embedded in the slot 16. The vertical outer side of the receiving slot 12 has a communicating extension groove 9. The outer part of the support rod 10 located on the support rod 5 is embedded in the extension groove 9.

[0024] The seat plate 2 has a receiving groove 17 that communicates with the receiving slots 12 on both sides, and a groove 18 extending inward is provided in the middle of the receiving groove 17. The middle part of the support rod 10 forms a protrusion 13, which is inserted into the groove 18 during installation.

[0025] The insert 11 has screw holes, and the chair 1 has slots 8 on both sides. After the chair 1 is installed, the slots 8 are aligned with the screw holes and tightened by screws 7.

[0026] Bolt 7 has a large-headed handle on its outer side for easy and quick manual tightening. Bolt 7 is not designed as an integral support; it is only located at the connection point of the chair back 1 and does not affect the overall strength of the chair, nor does it require tightening. Since the chair back 1 is secured by the insert 11 on the chair leg 3, bolt 7 only prevents the chair back 1 from detaching, thus allowing for a convenient manual tightening design.

[0027] Multiple through slots 6 are provided at different heights of chair legs 3 and 4, and the support rod 2 can be inserted in a corresponding manner to change the height of the seat 2. It should be noted that the position of the through slots 6 should not be set too low, but should be set according to the length of the receiving slot 12, so as to avoid the receiving slot 12 being restricted by its outer width when it is lowered into chair legs 3 and 4, which would prevent the support rod 5 and support rod 10 from being inserted downwards and thus failing to obtain effective support.

[0028] The second chair leg 4 serves as a rear side support, and includes an inwardly bent angle at the bottom and a support leg 42 at the bottom. The bottom end of the bend angle and the inner end of the support leg 42 intersect each other, and the bend angle and the support leg 42 are connected by either a spring rod or a cylinder 43.

[0029] The assembly method for the modular chair is as follows: First, insert the support rod 5 into the through groove 6 of the chair leg 3. Then, align the chair leg 4 with the side inserted into the chair leg 3 and insert the support rod 5 into the through groove 6 at the same height to form an integrated support leg. Insert both sides of support rod 210 into the middle of support rod 15 of the two spaced support legs respectively; Align the receiving slots 12 on both sides of the seat plate 2 with the insert support rod 5 and support rod 10 until the receiving slot 17 of the seat plate 2 is aligned and inserted into the support rod 10. 4. Insert the bottom ends of both sides of the chair 1 into the inserts 11 at the top of the support rod 5, and connect the chair 1 and the chair leg 3 together with the bolts 7.

[0030] Example 2, see appendix Figure 5 As shown, the second chair leg 4 is improved to enable the entire chair to tilt backward. The second chair leg 4 serves as a rear support and is divided into an inwardly bent angle and a horizontal support leg 42 at the bottom. The bottom end of the bent angle and the inner end of the support leg 42 intersect each other. The bent angle and the support leg 42 are supported and connected by either a spring rod or a cylinder 43.

[0031] The seat 2 and the backrest 1 (with rear support) can rotate relative to each other, allowing for a smooth reclining motion and comfortable angle adjustment. The seat achieves a simple structural design while also providing a reclining function.

[0032] The chair legs 24 can be quickly disassembled and assembled, and can be selected for further assembly, making them more widely applicable.

[0033] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A convenient and freely modular chair, characterized in that: The chair includes a support leg, a seat, and a backrest. The support leg includes a first chair leg and a second chair leg that are spliced ​​and fixed to each other at their ends. Both the first chair leg and the second chair leg have raised edges on their outer sides. The seat has slots on both sides that are aligned with the support leg and pass through from above to the raised edges on both sides of the support leg for support. The upper end of the first chair leg is fitted with a plug, and the bottom of the backrest is inserted into the plug through a slot.

2. The convenient and freely modular chair according to claim 1, characterized in that: The chair leg one and chair leg two are respectively provided with through grooves at the same horizontal height, and a support rod one is inserted into the through groove; a fastening groove one is provided in the middle of the support rod one, and a support rod two placed perpendicular to the support rod is locked into the fastening groove one.

3. The convenient and freely modular chair according to claim 2, characterized in that: The first support rod passes through the outer sides of the first and second chair legs, and both ends of the second support rod extend to the outer sides of the first support rod.

4. The convenient and freely modular chair according to claim 3, characterized in that: The bottom of the receiving slot has two communicating slots on both sides, and the outer part of the support rod one is embedded in the slot; the vertical outer side of the receiving slot has a communicating extension slot, and the outer part of the support rod one is embedded in the extension slot.

5. The convenient and freely modular chair according to claim 1, characterized in that: The seat plate has a receiving groove that communicates with the receiving slots on both sides, and the receiving groove has an inwardly extending groove in the middle. The middle part of the second support rod forms a protrusion, which is inserted into the groove during installation.

6. The convenient and freely modular chair according to claim 1, characterized in that: The insert has screw holes, and the chair has slots on both sides. After the chair is installed, the center of the slots is aligned with the screw holes, and the chair is tightened by screwing in bolts.

7. The convenient and freely modular chair according to claim 2, characterized in that: Multiple through slots are provided at different heights of chair leg one and chair leg two, and support rod two can be inserted in a corresponding manner to change the height of the seat.

8. A convenient and freely modular chair according to any one of claims 1-7, characterized in that: The second chair leg serves as a rear side support, comprising an inwardly bent angle at the bottom and a horizontal support leg at the bottom. The bottom end of the bend angle and the inner end of the support leg intersect each other. The bend angle and the support leg are connected by either a spring rod or a cylinder.

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