Combined connecting structure of seat

Abstract

The utility model discloses a combined connecting structure of a seat, which is characterized in that the combined connecting structure comprises a seat plate, a backrest, armrests, a seat leg component and a connecting support, the seat leg component is provided with a seat plate bracket, and the seat plate is movably supported on the seat plate bracket; the chair leg assembly comprises a fixed chair leg and a movable chair leg, and the movable chair leg is rotationally connected with the fixed chair leg; the armrests and the backrest are rotationally connected with the connecting support respectively, so that the backrest is free, and the armrests are overturned and adjusted. The device is good in stability and convenient to assemble and disassemble, and the production cost can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of seats, and more particularly to a combined connection structure of seats. Background Art

[0002] When not in use, the seat and main frame of a folding chair can be folded together, making it easy to move and saving space. It is widely used in scenarios such as homes, outdoors, and various public places. For example, China Authorization Publication No. CN219594112U discloses an office chair that is easy to fold, store, and carry. The office chair specifically includes a seat and a diagonal brace plate provided on one side of the seat. The seat is rotatably connected to the diagonal brace plate via a hinge block. Mounting blocks are provided on both sides of the seat, and support members are provided at the lower ends of the mounting blocks. A handle is provided at the upper end of the mounting block. One end of the handle is fixedly connected to the mounting block, and the other end of the handle is detachably connected to the diagonal brace plate. The seat supports the diagonal brace plate to rotate around its end point connected to the hinge block. After rotation, the diagonal brace plate can be retracted to the lower end of the seat plate. At this time, the back of the diagonal brace plate will be buckled on the lower end surface of the seat plate. The office chair in the folded state can save space. At the same time, by buckling the handle, the seat and diagonal brace plate can be lifted up for easy transportation. However, the disadvantage is that the chair legs are C-shaped brackets, which cannot be folded and are inconvenient to store; and the armrests are set on the diagonal support plates, while the chair legs are set on the seat plate, which has a complex structure, high cost, and is inconvenient to install. Its structure needs further improvement. Summary of the Invention

[0003] The purpose of the present invention is to solve the deficiencies of the prior art and to provide a seat combination connection structure that is stable, reliable, cost-effective, and more convenient to install.

[0004] The utility model adopts the following technical solutions to achieve the above-mentioned purpose: a combined connection structure of a chair, characterized in that it includes a seat plate, a backrest, armrests, a chair leg assembly, and a connecting support, the chair leg assembly is provided with a seat plate bracket, and the seat plate is movably supported on the seat plate bracket; the chair leg assembly includes fixed chair legs and movable chair legs, and the movable chair legs are rotatably connected to the fixed chair legs to achieve folding and storage; the armrests and the backrest are respectively rotatably connected to the connecting support, so that the backrest can be freely adjusted and the armrests can be flipped and adjusted.

[0005] As a further explanation of the above scheme, the connecting support is provided with connecting joint 1, connecting joint 2 and connecting joint 3. Connecting joint 1 is respectively connected to the armrest and backrest, connecting joint 2 is connected to the fixed chair leg, and connecting joint 3 is connected to the movable chair leg.

[0006] Furthermore, the seat plate bracket includes a crossbeam frame 1 arranged on the fixed chair leg and a crossbeam frame 2 arranged on the movable chair leg. The bottom of the seat plate is provided with an installation groove 1 corresponding to the crossbeam frame 1 and an installation groove 2 corresponding to the crossbeam frame 2. A lock is provided outside the installation groove 1 to lock the crossbeam frame 1, thereby increasing the structural stability of the chair leg assembly when it is in the unfolded state.

[0007] Furthermore, a slide groove is provided at the bottom of the seat plate, and the lock is movably provided in the slide groove. A latch is provided on one side of the installation groove to correspond to the lock.

[0008] Furthermore, the lower parts of the movable chair legs and the fixed chair legs are respectively provided with rollers to facilitate the movement of the chair.

[0009] Furthermore, the connecting joint is provided with a connecting sleeve, a hinge shaft and a spring are provided inside the connecting sleeve, the spring is sleeved on the outside of the hinge shaft, the side of the backrest is provided with a hole position one which matches the connecting sleeve in a concave-convex manner, the hole position is provided with a connecting boss, and the hinge shaft is inserted into the connecting boss; a guide groove is provided between the connecting boss and the inner wall of the hole position, and a boss is provided at the end of the connecting sleeve which is movably inserted into the guide groove, so that the boss can rotate and slide in the guide groove to realize the angle adjustment of the backrest.

[0010] Furthermore, an armrest shaft is provided on the end side of the armrest, and a hole position 2 for plugging and cooperating with the armrest shaft is provided at the rear of the connecting sleeve 1, a stop block is provided in the hole position 2, and a slot is provided at the end of the armrest shaft for cooperating with the stop block's movable stop.

[0011] Furthermore, a fixed boss is provided on the side of the connecting support, and the fixed boss is provided with a hinge shaft 2 and an arc-shaped hole groove. The connecting joint 3 is provided with a rotating end and a connecting end 1. The rotating end is provided with a protrusion that movably cooperates with the arc-shaped hole groove, and an axial hole corresponding to the hinge shaft 2; the connecting end 1 is plugged into and cooperates with the movable chair leg.

[0012] Furthermore, the connecting support is provided with a second connecting terminal, which is plugged into and matched with the fixed chair leg.

[0013] The beneficial effects that can be achieved by the utility model by adopting the above technical solutions are:

[0014] The utility model adopts a combined connection structure of a chair which is mainly composed of a seat plate, a backrest, armrests, a chair leg assembly and a connecting support. The chair leg assembly is provided with a seat plate bracket, and the seat plate is movably supported on the seat plate bracket; the chair leg assembly includes fixed chair legs and movable chair legs, and the movable chair legs are rotatably connected to the fixed chair legs, so that they can be folded and stored; the armrests and the backrest are rotatably connected to the connecting supports respectively, so that the backrest can be moved freely and the armrests can be flipped and adjusted. The armrests, backrest and chair leg assemblies are connected into one by using the connecting supports. The overall structure is simple, cost-effective, very convenient to install and adjust, and stable, so that the backrest can be moved freely, the armrests can be flipped and adjusted, and the chair legs can be folded and stored. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the present utility model.

[0016] Figure 2 It is a structural diagram of the present utility model.

[0017] Figure 3 Schematic diagram of the connecting support structure.

[0018] Figure 4 Schematic diagram of the connecting support structure.

[0019] Figure 5 Schematic diagram of the connection structure between the support and the handrail.

[0020] Figure 6 Schematic diagram of the connection joint structure.

[0021] Figure 7 Schematic diagram of the backrest structure.

[0022] Figure 8 This is a schematic diagram of the installation structure of the chair leg assembly of the present invention.

[0023] Figure 9 for Figure 8 A magnified view of center.

[0024] Figure 10 This is a schematic diagram of the installation structure of the chair leg assembly of the present invention.

[0025] Explanation of the accompanying drawings: 1. seat plate 1-1, mounting slot one 1-2, mounting slot two 1-3, lock 1-4, slide slot 2, backrest 2-1, hole position one 2-11, connecting boss 2-12, guide slot 2-2, hole position two 3, armrest 4, chair leg assembly 4-1, fixed chair leg 4-2, movable chair leg 5, connecting support 5-1, connecting joint one 5-11, hinge shaft one 5-12, spring 5-2, connecting joint two 5-3, connecting joint three 5-31, rotating end 5-311, protrusion 5-32, connecting end one 5-4, fixed boss 5-41, hinge shaft two 5-42, arc-shaped hole slot 5-5, connecting end two 6, seat plate bracket 6-1, crossbeam frame one 6-2, crossbeam frame two 7, roller. DETAILED DESCRIPTION

[0026] In the description of the present invention, it should be noted that, for directional words, such as the terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and so on, indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific protection scope of the present invention.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Therefore, the terms "first" and "second" may explicitly or implicitly include one or more of these features. In the description of this utility model, "at least" means one or more, unless otherwise specifically defined.

[0028] In this utility model, unless otherwise specified or limited, the terms "assemble," "connect," and "connect" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection; direct connection, connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0029] In the utility model, unless otherwise specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "below," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "above," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0030] The following description of the embodiments of the present invention is further described in conjunction with the accompanying drawings to make the technical solutions and beneficial effects of the present invention clearer and more specific. The following description of the embodiments with reference to the accompanying drawings is illustrative and intended to explain the present invention, but should not be construed as limiting the present invention.

[0031] like Figures 1-10 As shown, the present invention is a combined connection structure for a chair, comprising a seat panel 1, a backrest 2, armrests 3, a leg assembly 4, and a connecting support 5. The leg assembly 4 is provided with a seat support 6, on which the seat panel 1 is movably supported. The leg assembly 4 includes a fixed leg 4-1 and a movable leg 4-2, which are rotatably connected to the fixed leg 4-1 to form an inverted V-shaped support structure. When the leg assembly is unfolded, the angle between the movable leg and the fixed leg is 30-60 degrees, providing good stability. When folded, the chair can be folded and stored. The armrests 3 and backrest 2 are rotatably connected to the connecting support 5, respectively, allowing the backrest to be adjusted freely and the armrests to be flipped and adjusted.

[0032] The connecting support 5 is a connecting plate. One end of the connecting support 5 is provided with a connecting joint 1 5-1, and the other end is provided with a connecting joint 2 5-2 and a connecting joint 3 5-3. The connecting joint 1 5-1 is connected to the armrest 3 and the backrest 2 respectively. The connecting joint 2 5-2 is connected to the fixed chair leg 4-1, and the connecting joint 3 5-3 is connected to the movable chair leg 4-2. The side of the connecting support 5 is provided with a fixed boss 5-4. The fixed boss 5-4 is provided with a hinge shaft 2 5-41 and an arc-shaped hole groove 5-42. The connecting joint 3 5-3 is provided with a rotating end 5-31 and a connecting end 1 5-32. The rotating end 5-31 is provided with a protrusion 5-311 that movably cooperates with the arc-shaped hole groove 5-42, and an axial hole corresponding to the hinge shaft 2 5-41. The connecting end 1 5-32 is plugged into and cooperates with the movable chair leg 4-2. In order to improve stability, screws are screwed on the side of the movable chair leg to reinforce the connection between the two. The connecting support 5 is provided with a second connector 5-5, which is plugged into the fixed chair leg 4-1. To improve stability, screws are screwed into the side of the fixed chair leg to reinforce the connection between the two. The lower part of the movable chair leg and the fixed chair leg are respectively provided with rollers 7 to facilitate the movement of the chair, which makes it more comfortable and convenient for users to use as an office chair.

[0033] The seat support 6 includes a crossbar bracket 1 6-1 mounted on the fixed leg and a crossbar bracket 2 6-2 mounted on the movable leg. The bottom of the seat 1 is provided with a mounting groove 1-1 corresponding to the crossbar bracket 1 and a mounting groove 2 1-2 corresponding to the crossbar bracket 2. A lock 1-3 is provided outside the mounting groove 1 to lock the crossbar bracket 1, thereby increasing the structural stability of the leg assembly when deployed. A slide groove 1-4 is provided at the bottom of the seat, and the lock is movably disposed within the slide groove. A latch is provided on one side of the mounting groove 1 to engage with the lock. After the lock is released, the leg assembly can be folded.

[0034] Connecting joint 1 5-1 is provided with connecting sleeve 1, which contains hinge shaft 1 5-11 and spring 5-12. The spring is mounted on the outside of hinge shaft 1. A hole 1 2-1 is provided on the side of backrest 2, which mates with connecting sleeve 1. Hole 1 2-1 is provided with a connecting boss 2-11, and hinge shaft 1 is inserted into connecting boss 2-11. A guide groove 2-12 is provided between connecting boss 2-11 and the inner wall of hole 1. A protrusion is provided at the end of connecting sleeve 1 and movably inserts into the guide groove, allowing the protrusion to rotate and slide within the guide groove to adjust the angle of the backrest. An armrest shaft is provided at the end of armrest. A hole 2-2 is provided at the rear of connecting sleeve 1, which mates with the armrest shaft. A stop block is provided within hole 2-2. A notch is provided at the end of the armrest shaft, which movably engages with the stop block.

[0035] Compared with the prior art, the present invention adopts a combined connection structure of a chair mainly composed of a seat plate, a backrest, armrests, a chair leg assembly, and a connecting support. The armrests, backrest, and chair leg assembly are connected into one by the connecting support, which saves costs, is very convenient to install and adjust, and has good stability. The backrest can be adjusted freely, the armrests can be flipped and adjusted, and the chair legs can be folded and stored.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the present invention, which all fall within the scope of protection of the present invention.

Claims

1. A combined connection structure of a seat, characterized in that: It includes a seat, a backrest, an armrest, a chair leg assembly, and a connecting support. The chair leg assembly is provided with a seat plate bracket, and the seat is movably supported on the seat plate bracket; the chair leg assembly includes fixed chair legs and movable chair legs, and the movable chair legs are rotatably connected to the fixed chair legs; the armrests and the backrest are rotatably connected to the connecting support respectively to realize the free movement of the backrest and the flip adjustment of the armrests; the connecting support is provided with connecting joint 1, connecting joint 2 and connecting joint 3, connecting joint 1 is respectively connected to the armrest and the backrest, connecting joint 2 is connected to the fixed chair leg, and connecting joint 3 is connected to the movable chair leg.

2. A seat combination connection structure according to claim 1, characterized in that: The seat plate bracket includes a crossbeam frame 1 arranged on the fixed chair leg and a crossbeam frame 2 arranged on the movable chair leg. The bottom of the seat plate is provided with an installation groove 1 corresponding to the crossbeam frame 1 and an installation groove 2 corresponding to the crossbeam frame 2. A lock is provided outside the installation groove 1 to lock the crossbeam frame 1.

3. The combined connection structure of a seat according to claim 2, characterized in that: A slide groove is provided at the bottom of the seat plate, and the lock buckle is movably arranged in the slide groove. A latch is provided on one side of the installation groove to correspond to the lock buckle.

4. The combined connection structure of a seat according to claim 1, characterized in that: The lower parts of the movable chair legs and the fixed chair legs are respectively provided with rollers.

5. The combined connection structure of a seat according to claim 1, characterized in that: The connecting joint is provided with a connecting sleeve, a hinge shaft and a spring are provided inside the connecting sleeve, the spring is sleeved on the outside of the hinge shaft, the side of the backrest is provided with a hole that matches the connecting sleeve in a concave-convex manner, the hole is provided with a connecting boss, and the hinge shaft is inserted into the connecting boss; a guide groove is provided between the connecting boss and the inner wall of the hole, and a boss is provided at the end of the connecting sleeve that is movably inserted into the guide groove.

6. The combined connection structure of a seat according to claim 1, characterized in that: An armrest shaft is provided at the end side of the armrest, and a hole position 2 for plugging and cooperating with the armrest shaft is provided at the rear of the connecting sleeve 1. A stop block is provided in the hole position 2, and a notch is provided at the end of the armrest shaft for movable stop cooperation with the stop block.

7. The combined connection structure of a seat according to claim 1, characterized in that: A fixed boss is provided on the side of the connecting support, and the fixed boss is provided with a hinge shaft 2 and an arc-shaped hole groove. The connecting joint 3 is provided with a rotating end and a connecting end 1. The rotating end is provided with a protrusion that movably cooperates with the arc-shaped hole groove, and an axial hole corresponding to the hinge shaft 2; the connecting end 1 is connected and cooperated with the movable chair leg.

8. The combined connection structure of a seat according to claim 1, characterized in that: The connecting support is provided with a second connecting terminal, which is connected and matched with the fixed chair leg.

Images