Combined sofa connecting structure

Abstract

The utility model discloses a combined sofa connecting structure which comprises at least two sofa single bodies, a connecting assembly is arranged between every two adjacent sofa single bodies, and each connecting assembly comprises a first fixing piece (1) connected with one sofa single body and a second fixing piece (2) connected with the other sofa single body. Cantilevers (10) extending forwards are arranged on the upper side and the lower side of the first fixing part (1) respectively, inward barbs (11) are arranged at the front ends of the cantilevers (10), a horizontal through groove (20) is formed in the middle of the second fixing part (2), the through groove (20) faces a sofa single body connected with the second fixing part (2), a pin column (21) matched with the barbs (11) is arranged on the bottom face of the through groove (20), and a baffle (25) located on the front side of the pin column (21) is arranged on the bottom face of the through groove (20). The utility model has the advantage that the sofa monomers can be assembled in a labor-saving way.

Description

Technical Field

[0001] This utility model belongs to the field of modular sofas, and in particular relates to a connection structure for modular sofas. Background Technology

[0002] A modular sofa consists of two or more individual sofa units, which are fixed together by connectors to form a modular sofa. This design is primarily for ease of packaging and transportation. For example, the plastic connector for a modular sofa described in application number 202021616137.7 includes two fasteners and a toothed joint. To avoid exposing the connectors, the two fasteners are fixed to the bottom of adjacent sofa units. When installing the fasteners, the two sofa units need to be flipped over to secure the fasteners to the individual units. Then, the toothed joint is used to connect the two fasteners, completing the sofa assembly. Finally, the modular sofa is flipped over again, making assembly rather cumbersome. Utility Model Content

[0003] The purpose of this invention is to provide a connecting structure for modular sofas. This invention has the advantage of making the assembly of individual sofa units easier.

[0004] The technical solution of this utility model is as follows: A connecting structure for a modular sofa includes at least two individual sofa units. A connecting component is provided between adjacent sofa units. The connecting component includes a first fixing member connecting one of the sofa units and a second fixing member connecting the other sofa unit. The first fixing member has forward-extending cantilever arms on both its upper and lower sides. The front end of the cantilever arm has an inward-facing barb. The second fixing member has a horizontal through groove in the middle, which faces the sofa unit connected to the second fixing member. A pin is provided on the bottom surface of the through groove to cooperate with the barb. A baffle is provided on the bottom surface of the through groove in front of the pin.

[0005] In the aforementioned modular sofa connection structure, the cross-section of the barb is a right triangle, one right-angled side of the right triangle is parallel to the cantilever, and the other right-angled side of the right triangle faces perpendicular to the cantilever and is located inside the barb;

[0006] The cross-section of the pin is an isosceles triangle, with the base of the isosceles triangle in the vertical direction.

[0007] In the aforementioned modular sofa connection structure, the inner sidewall of the barb is provided with multiple anti-slip teeth, and the pin is provided with an anti-slip groove that cooperates with the anti-slip teeth.

[0008] In the aforementioned modular sofa connection structure, an arc-shaped stress relief groove is provided at the connection between the inner wall of the cantilever and the front wall of the first fixing member. This stress relief groove prevents the cantilever from breaking when it bends.

[0009] In the aforementioned modular sofa connection structure, the rear end of the first fixing member is provided with a first screw hole, and the upper and lower sides of the second fixing member are provided with second screw holes.

[0010] In the aforementioned modular sofa connection structure, the upper and lower sides of the second fixing member are provided with stepped grooves, the stepped grooves face away from the sofa unit connected to the second fixing member, and the second screw hole is located on the bottom surface of the stepped groove.

[0011] In the aforementioned modular sofa connection structure, the thickness of the cantilever matches the depth of the through groove, and the front end of the cantilever is provided with a guide bevel.

[0012] Compared with existing technologies, the two fasteners of this invention are installed on the side walls of two adjacent sofa units. One fastener has a barb, and the other has a baffle and a pin. During assembly, the two sofa units are always placed upright. One sofa unit is pushed towards the other, causing the barb to hook onto the pin. At this point, the two sofa units are connected not only in the front-to-back direction but also in the width direction, making assembly less strenuous. Therefore, this invention has the advantage of making sofa unit assembly less strenuous. Attached Figure Description

[0013] Figure 1 This is the front view of the first fastener.

[0014] Figure 2 yes Figure 1 Enlarged view at point A.

[0015] Figure 3 yes Figure 1 A top-down view.

[0016] Figure 4 This is the front view of the second fastener.

[0017] Figure 5 yes Figure 4 Enlarged view at point B.

[0018] Figure 6 yes Figure 4 The left view.

[0019] Figure 7 This is a schematic diagram of the first fastener being inserted into the second fastener.

[0020] The markings in the attached diagram are as follows: 1-first fixing member, 10-cantilever, 11-barb, 12-anti-slip teeth, 13-stress relief groove, 14-first screw hole, 15-guide bevel, 2-second fixing member, 20-through groove, 21-pin, 22-anti-slip groove, 23-second screw hole, 24-step groove, 25-baffle. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0022] Example: A modular sofa connection structure includes two individual sofa units, with a connecting component between adjacent sofa units. The connecting component includes a first fastener 1 that connects to the side wall of one sofa unit and a second fastener 2 that connects to the side wall of the other sofa unit.

[0023] like Figure 1 As shown, the rear end of the first fastener 1 has two first screw holes 14, and the first screw holes 14 contain self-tapping screws for connecting the corresponding sofa unit. Both the upper and lower sides of the first fastener 1 have forward-extending cantilever arms 10, and the front end of each cantilever arm 10 has an inward-facing barb 11. The cross-section of the barb 11 is a right-angled triangle, with one right-angled side parallel to the cantilever arm 10, and the other right-angled side facing perpendicularly to the cantilever arm 10 and located inside the barb 11. Multiple anti-slip teeth 12 are provided on the inner sidewall of the barb 11. An arc-shaped stress-relieving groove 13 is provided at the connection between the inner sidewall of the cantilever arm 10 and the front sidewall of the first fastener 1.

[0024] like Figure 2 As shown, the second fixing member 2 has stepped grooves 24 on both its upper and lower sides, with the stepped grooves 24 facing away from the sofa unit connected to the second fixing member 2. Two second screw holes 23 are provided on the bottom surface of the stepped grooves 24, each containing a self-tapping screw for connecting to the corresponding sofa unit. A horizontal through groove 20 is provided in the middle of the second fixing member 2, facing the sofa unit connected to the second fixing member 2. A pin 21, which engages with a barb 11, is located on the bottom surface of the through groove 20. The height of the pin 21 does not exceed the depth of the through groove 20, and the cross-section of the pin 21 is an isosceles triangle with its base in the vertical direction. The pin 21 has an anti-slip groove 22 that engages with the anti-slip teeth 12. A baffle 25 is located on the bottom surface of the through groove 20, positioned in front of the pin 21, and the height of the baffle 25 does not exceed the depth of the through groove 20.

[0025] The thickness of the cantilever 10 matches the depth of the through groove 20. For example, the thickness of the cantilever 10 is 4mm and the depth of the through groove 20 is 4.5mm. The front end of the cantilever 10 is provided with a guide angle 15, which is in the thickness direction of the cantilever 10, so that the cantilever 10 can be easily inserted into the through groove 20.

[0026] Both the first fastener 1 and the second fastener 2 are injection molded from POM or PA66 plastic.

[0027] Assembly Principle: The first fixing component 1 and the second fixing component 2 are connected to two sofa units respectively via countersunk self-tapping screws. For ease of description, they are referred to as sofa unit K and sofa unit L, respectively. Sofa unit L is placed against the wall. Sofa units K and L are offset in the width direction, with sofa unit K located in front of sofa unit L. When sofa unit K is pushed towards the width side of sofa unit L, when the barb 11 contacts the side wall of the pin 21, the front end of the cantilever 10 bends outward in the vertical direction until the barb 11 passes the front side wall of the pin 21. The cantilever 10 then straightens again, placing the barb 11 in front of the pin 21. At this point, the barb 11 is close to the baffle 25. Through the action of the baffle 25 and the pin 21, the two sofa units are limited in the front-back direction, allowing for a very small relative movement distance. Since the cantilever 10 enters the through groove 20, it is clamped between the second fixing component 2 and the sofa unit connected to it, further limiting the width direction of the two sofa units. The two sofa units were able to be connected together.

[0028] After the two sofa units are connected together, push the sofa unit K forward, and the cantilever 10 contacts the baffle 25, causing the sofa unit L to move forward as well. Push the sofa unit K backward, and because the barb 11 hooks the pin 21, the sofa unit also moves backward. During this process, because the anti-slip teeth 12 on the barb 11 enter the anti-slip groove 22 of the pin 21, the barb 11 and the pin 21 are strongly engaged. The barb 11 will not move outward, preventing the two fasteners from separating, and the connection strength between the two sofa units is higher.

Claims

1. A modular sofa connection structure, comprising at least two individual sofa units, with a connecting assembly between adjacent sofa units, the connecting assembly including a first fixing member (1) connecting one sofa unit and a second fixing member (2) connecting the other sofa unit, characterized in that: The first fixing member (1) has forward-extending cantilever (10) on both the upper and lower sides. The front end of the cantilever (10) has an inward-facing barb (11). The second fixing member (2) has a horizontal through groove (20) in the middle. The through groove (20) faces the sofa unit connected to the second fixing member (2). The bottom surface of the through groove (20) has a pin (21) that cooperates with the barb (11). The bottom surface of the through groove (20) has a baffle (25) located in front of the pin (21).

2. The modular sofa connection structure according to claim 1, characterized in that: The cross section of the barb (11) is a right triangle, one of the right-angled sides of the right triangle is parallel to the cantilever (10), and the other right-angled side of the right triangle is perpendicular to the cantilever (10) and located inside the barb (11); The cross-section of the pin (21) is an isosceles triangle, with the base of the isosceles triangle in the vertical direction.

3. The modular sofa connection structure according to claim 2, characterized in that: The inner wall of the barb (11) is provided with a plurality of anti-slip teeth (12), and the pin (21) is provided with an anti-slip groove (22) that cooperates with the anti-slip teeth (12).

4. The modular sofa connection structure according to claim 1, characterized in that: The connection between the inner wall of the cantilever (10) and the front wall of the first fixing member (1) is provided with an arc-shaped stress relief groove (13).

5. The modular sofa connection structure according to claim 1, characterized in that: The first fixing member (1) has a first screw hole (14) at its rear end, and the second fixing member (2) has a second screw hole (23) on both its upper and lower sides.

6. The modular sofa connection structure according to claim 5, characterized in that: The second fastener (2) has stepped grooves (24) on both the upper and lower sides. The stepped grooves (24) face away from the sofa unit connected to the second fastener (2). The second screw hole (23) is located on the bottom surface of the stepped groove (24).

7. The modular sofa connection structure according to claim 1, characterized in that: The thickness of the cantilever (10) matches the depth of the through groove (20), and the front end of the cantilever (10) is provided with a guide angle (15).

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