Stackable storage armchair

Abstract

The application discloses a stackable armchair, which comprises a seat and a backrest connected to the seat, a support frame rotatably connected to the seat, and a seat overturning control device comprising a rotating mechanism connected between the support frame and the seat and at least one stop mechanism arranged in the seat and located at the side of the rotating mechanism. The stackable armchair can be stacked in front of and / or above each other by overturning and leaning forward the seat and / or folding the armrests, so that the volume of the stacked armchairs is small, the packaging cost is low, the storage and transportation are convenient, and the space can be saved by stacking.

Description

TECHNICAL FIELD

[0001] The present application relates to a chair, in particular to a stackable armchair. BACKGROUND

[0002] The common four-legged support chair is mostly fixed or foldable. Both the fixed and foldable chairs cannot be stacked forwardly or upwardly, which is not only bulky, high in packaging cost, inconvenient for storage and transportation, but also inconvenient for storage when not in use, occupying a large space.

[0003] Therefore, it is urgent to develop a stackable armchair. SUMMARY

[0004] In view of the above problems, the present application provides a stackable armchair, which can be stacked forwardly or upwardly by tilting the seat and / or folding the armrest, and after stacking, the volume is small, the packaging cost is low, the storage and transportation are convenient, and the armchair is easy to store to save space.

[0005] The technical scheme adopted by the present application to achieve the above purpose is:

[0006] A stackable armchair, characterized in that it comprises:

[0007] a seat and a backrest, the backrest being connected to the seat;

[0008] a support frame connected to the seat;

[0009] a seat tilting control device comprising a rotating mechanism connected between the support frame and the seat, and at least one stop mechanism arranged in the seat and located on the side of the rotating mechanism.

[0010] As a further improvement of the present application, the rotating mechanism comprises two connecting rods connected to the support frame, and a rotating shaft connected between the two connecting rods and rotatably arranged on the back of the seat, wherein two limiting grooves for the two connecting rods to be inserted are formed on the back of the seat, and a rotating groove for the rotating shaft to be inserted and rotated is formed on the back of the seat.

[0011] As a further improvement of the present application, the support frame comprises a seat support rod supported on the back of the seat, and at least one leg connected to the seat support rod, wherein the two connecting rods are connected to the seat support rod, and a clamping groove for the seat support rod to be inserted is formed on the back of the seat.

[0012] As a further improvement of the present invention, an installation limiting block is provided on the back of the chair seat, which covers the two limiting grooves and the rotating groove.

[0013] As a further improvement of the present invention, the stopping mechanism includes a handle switch movably disposed in the seat, a latch connected to the handle switch, and a pressure spring disposed between the latch and the inner wall of the seat. A positioning locking hole for the end of the latch to be inserted is formed on the side of the connecting rod near the latch, and an action slope is formed at the end of the latch.

[0014] As a further improvement of the present invention, a receiving cavity for accommodating a stop mechanism is formed in the seat, and a pull-out port communicating with the receiving cavity and for the handle switch to be pulled out is formed on the seat.

[0015] As a further improvement of the present invention, a handrail is provided on the support frame, and a handrail elastic flipping mechanism is provided between the handrail and the support frame. The handrail elastic flipping mechanism includes a handrail connector connected to the support frame and rotatably connected to the handrail, and an elastic flipping component rotatably disposed in the handrail. The elastic flipping component includes a handrail support block rotatably connected to the handrail, and a handrail spring disposed in the handrail support block. A movable cavity is formed in the handrail for the elastic flipping component to move, and an opening is formed on the handrail that communicates with the movable cavity and allows the handrail support block to protrude.

[0016] As a further improvement of the present invention, the handrail support block is rotatably connected to the handrail via a first rotating shaft, and a spring movable groove is formed on the handrail support block, wherein the handrail spring is disposed in the spring movable groove and sleeved on the first rotating shaft.

[0017] As a further improvement of the present invention, a limiting protrusion is formed on the side of the handrail connector near the handrail support block, and the handrail connector is rotatably connected to the handrail through a second pivot.

[0018] As a further improvement of the present invention, a limiting hook is formed at one end of the handrail support block, and a limiting groove is formed on the inner wall of the movable cavity for the limiting hook to be hooked into.

[0019] The beneficial effects of this invention are as follows:

[0020] (1) By adding a chair seat flipping control device that includes a rotating mechanism and a stopping mechanism, the chair seat and back can be flipped forward, i.e., tilted forward. The forward-tilted armchairs can be stacked together. After stacking, the volume is small, the packaging cost is low, and it is convenient for warehousing and transportation. It is also convenient to store to save space. At the same time, the chairs that need to be used can be flipped in the opposite direction and stopped to improve the stability of the chairs.

[0021] (2) By adding an armrest elastic flipping mechanism to the armrest, the armrest can be folded and unfolded. When the armrest is unfolded, it is convenient to use the chair normally. When the armrest is folded, it is convenient to stack the chair up and down. After stacking up and down, the volume is small, the packaging cost is low, and it is convenient for warehousing and transportation, so as to realize the storage of the chair to save space.

[0022] The above is an overview of the invention's technical solution. The invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the back structure of the armchair in Example 1;

[0024] Figure 2 This is a schematic diagram of the front structure of the armchair in Embodiment 1;

[0025] Figure 3 This is an exploded view of the armchair in Example 1;

[0026] Figure 4 This is a schematic diagram of the stop mechanism in Example 1;

[0027] Figure 5 This is a partial cross-sectional view of Example 1;

[0028] Figure 6 This is a schematic diagram of five armchairs stacked together in Example 1.

[0029] Figure 7 This is a schematic diagram of the structure combining the handrail and the handrail elastic flipping mechanism in Embodiment 2;

[0030] Figure 8 This is a schematic diagram of the combination of the handrail and the handrail elastic flipping mechanism in Embodiment 2;

[0031] Figure 9 This is a cross-sectional view of the handrail in the unfolded state in Example 2;

[0032] Figure 10 This is a cross-sectional view of the armrest in the folded state in Example 2;

[0033] Figure 11 This is a schematic diagram of the handrail installation in Example 2;

[0034] Figure 12 This is a schematic diagram of five armchairs stacked together in Example 2. Detailed Implementation

[0035] To further illustrate the technical means and effects adopted by the present invention to achieve the intended purpose, the specific implementation of the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments.

[0036] Example 1:

[0037] Please refer to Figures 1 to 3 This embodiment provides a stackable armchair, comprising:

[0038] A chair seat 1 and a chair back 2, wherein the chair back 2 is connected to the chair seat 1;

[0039] A support frame 3 is rotatably connected to the seat 1;

[0040] A chair seat flipping control device 4 includes a rotating mechanism 41 connected between a support frame 3 and a chair seat 1, and at least one stop mechanism 42 disposed within the chair seat 1 and located on the side of the rotating mechanism 41. The rotating mechanism 41 allows the chair seat 1 and backrest 2 to rotate forward along the support frame 3. Under gravity, the chair seat 1 and backrest 2 tilt forward. When the chair is needed, simply pull the backrest 2 backward; the backrest 2 and chair seat 1 will flip backward along the support frame 3. After flipping to the correct position, the stop mechanism 42 stops and positions the chair seat 1. Thus, by adding the chair seat flipping control device 4 containing the rotating mechanism 41 and the stop mechanism 42, the chair seat 1 and backrest 2 can be flipped forward, i.e., tilted forward. The forward-tilted armchairs can be stacked together, such as... Figure 6 As shown, 5 armchairs are stacked one on top of the other. Stacking them together reduces their size, lowers packaging costs, facilitates warehousing and transportation, and saves space. Additionally, the chairs can be flipped back into place when needed to improve stability during use.

[0041] In this embodiment, as Figure 1 and Figure 3 As shown, the rotating mechanism 41 includes two connecting rods 411 connected to the support frame 3, and a rotating shaft 412 connected between the two connecting rods 411 and rotatably mounted on the back of the chair seat 1. Two limiting grooves 11 for the two connecting rods 411 to be inserted into, and a rotating groove 12 for the rotating shaft 412 to be inserted into and rotate. When the chair seat 1 is flipped, the chair seat 1 rotates along the rotating shaft 412. In the two limiting grooves 11, relief grooves 13 are formed for the ends of the connecting rods 411 to be inserted into. The relief grooves 13 provide relief space for the ends of the connecting rods 411 during the flipping process of the chair seat 1, so that the chair seat 1 can be flipped smoothly.

[0042] Specifically, the support frame 3 includes a seat support rod 31 supported on the back of the chair seat 1, and at least one leg 32 connected to the seat support rod 31. Two connecting rods 411 are connected to the seat support rod 31, and a slot 14 is formed on the back of the chair seat 1 for the seat support rod 31 to be inserted. The seat support rod 31 supports the chair seat 1. When the chair seat 1 is flipped forward, the seat support rod 31 disengages from the slot 14. When the chair needs to be used, after being flipped backward, the seat support rod 31 engages with the slot 14, supporting the chair seat 1.

[0043] In this embodiment, as Figure 3 As shown, the support frame 3 has two legs 32, and the two legs 32 have a total of four support feet 321. Each support foot 321 has a foot pad attached to its lower end, and a caster is attached to the lower end of the foot pad.

[0044] To facilitate installation and to position the two connecting rods 411 and the rotating shaft 412, this embodiment provides an installation limiting block 15 on the back of the chair seat 1. The installation limiting block 15 covers the two limiting grooves 11 and the rotating groove 12. The installation of the installation limiting block 15 limits the rotation angle of the chair seat 1.

[0045] Before performing the specific flipping operation, first pull the handle switch 421 outward to release the lock on the seat 1; then, apply a forward and upward force to the seat 1, causing the seat 1 to rotate along the rotating shaft 412. At this time, the end of the connecting rod 411 is inserted into the relief groove 13 of the limiting groove 11. When the end of the connecting rod 411 reaches the inner wall of the relief groove 13, it indicates that the rotation is in place. At this time, under the action of gravity, the seat 1 and the backrest 2 tilt forward, facilitating the stacking of the chairs. Figure 6 As shown, when stacked front to back, the volume is small, the packaging cost is low, and it is convenient for warehousing and transportation. It also allows for the storage of chairs to save space.

[0046] In this embodiment, as Figures 3 to 5 As shown, the stopping mechanism 42 includes a handle switch 421 movably disposed within the seat 1, a locking tongue 422 connected to the handle switch 421, and a pressure spring 423 disposed between the locking tongue 422 and the inner wall of the seat 1. The pressure spring 423 can control the locking tongue 422 to achieve automatic reset. A positioning locking hole 4110 for inserting the end of the locking tongue 422 is formed on the side of the connecting rod 411 near the locking tongue 422, and an action inclined surface 4221 is formed at the end of the locking tongue 422.

[0047] For ease of installation, a receiving cavity 16 is formed in the seat 1 to accommodate the stop mechanism 42, and a pull outlet 161 is formed on the seat 1 to communicate with the receiving cavity 16 and to be pulled out by the handle switch 421.

[0048] When the user needs to use the chair, simply pull the backrest 2 back gently. As the backrest 2 causes the seat 1 to flip backward, the upper surface of the connecting rod 411 contacts the inclined surface 4221 of the locking tongue 422. Under the action of gravity, the locking tongue 422 is pushed backward. The pressure spring 423 is compressed when the locking tongue 422 moves backward. Finally, the locking tongue 422 enters the positioning locking hole 4110 of the connecting rod 411. The pressure spring 423 resets and restricts the locking tongue 422, so that the locking tongue 422 will not move freely, thus playing a stopping role and preventing the chair from automatically tilting forward and flipping.

[0049] When the seat 1 is flipped up and stacked for easy storage, the compression spring 423 is compressed. Simultaneously, the handle switch 421 is pulled outwards, and the seat 1 is rotated slightly. The locking tongue 422 is pulled out of the positioning lock hole 4110, releasing the lock on the connecting rod 411, allowing the seat 1 to flip forward. Once flipped to the correct position, the end of the locking tongue 422 rests against the outer wall of the connecting rod 411. Under gravity, the seat 1 and backrest 2 tilt forward, facilitating the stacking of the chairs. Figure 6 As shown, 5 armchairs are stacked one on top of the other. When stacked front to back, they are small in size, have low packaging costs, and are easy to store and transport, thus saving space by folding the chairs together.

[0050] Example 2:

[0051] The main difference between this embodiment and Embodiment 1 is that, Figures 7 to 10 As shown, an armrest 5 is provided on the support frame 3, and an armrest spring-loaded flipping mechanism 6 is provided between the armrest 5 and the support frame 3 for folding and unfolding the armrest 5. When the armrest is unfolded, it facilitates normal use of the chair; when the armrest is folded, it facilitates stacking the chairs. Figure 12 As shown, when stacked, the chairs are small in size, have low packaging costs, and are easy to store and transport, thus saving space.

[0052] Specifically, the handrail elastic flipping mechanism 6 includes a handrail connector 61 connected to the support frame 3 and rotatably connected to the handrail 5, and an elastic flipping component 62 rotatably disposed within the handrail 5. The elastic flipping component 62 includes a handrail support block 621 rotatably connected to the handrail 5, and a handrail spring 622 disposed within the handrail support block 621.

[0053] By adding an armrest spring-flipping mechanism 6, which is composed of an armrest support block 621, an armrest spring 622, and an armrest connector 61, when the user needs to stack the chairs, he can press the armrest support block 621 and put the armrest support block 621 into the armrest 5, and fold the armrest 5 downwards. This makes it easy to stack multiple chairs vertically. After stacking, the volume is small, the packaging cost is low, and it is convenient for warehousing and transportation, so as to save space.

[0054] Regarding the installation of the armrest elastic flipping mechanism 6, in this embodiment, an active cavity 51 is formed in the armrest 5 for the active flipping component 62 to move. An opening 52 is formed on the armrest 5 that communicates with the active cavity 51 and allows the armrest support block 621 to protrude, so that the armrest support block 621 partially protrudes through the opening 52, so that the armrest support block 621 can be pressed when the armrest 5 needs to be folded. When the armrest support block 621 is pressed, the armrest support block 621 can rotate around the first pivot 623 in the active cavity 51.

[0055] Regarding the installation of the handrail support block 621 and the handrail spring 622, in this embodiment, the handrail support block 621 is rotatably connected to the handrail 5 through a first rotating shaft 623, and a spring movable groove 6211 is formed on the handrail support block 621. The handrail spring 622 is disposed in the spring movable groove 6211 and sleeved on the first rotating shaft 623.

[0056] After the armrest 5 is unfolded and folded into place, in order to limit the armrest support block 621, this embodiment has two methods, namely:

[0057] The first method: A limiting protrusion 611 is formed on the side of the handrail connector 61 near the handrail support block 621, such as... Figure 8 As shown, the limiting protrusion 611 holds the handrail support block 621 in place to prevent the handrail support block 621 from swinging freely.

[0058] The second method: A limiting hook 6212 is formed at one end of the armrest support block 621, and a limiting groove 511 is formed on the inner wall of the movable cavity 51 for the limiting hook 6212 to engage with, such as Figure 8 and Figure 9 As shown, after being unfolded into place, the limit hook 6212 is hooked into the limit groove 511 to prevent the handrail support block 621 from swinging freely.

[0059] In specific structural designs, the first and second methods can coexist, or one of them can be selected.

[0060] Meanwhile, the handrail connector 61 is rotatably connected to the handrail 5 via a second pivot 610, so that the handrail connector 61 can rotate slightly around the second pivot 610 when subjected to force, so that the limiting protrusion 611 of the handrail connector 61 can position the handrail support block 621.

[0061] When the armrest 5 is in the extended state, such as Figure 9As shown, under the elastic force of the handrail spring 622, the handrail support block 621 swings outward from the opening 52 until the handrail support block 621 presses against the handrail connector 61, and the handrail connector 61 positions the handrail support block 621, or until the limiting hook 6212 hooks into the limiting groove 511, and the limiting groove 511 positions the handrail support block 621. At this time, the handrail support block 621 supports the handrail 5, positions the handrail 5, and keeps the handrail 5 in the unfolded state.

[0062] When the handrail 5 needs to be folded, the handrail support block 621 can be pressed inward. At the same time, a downward force is applied to the handrail 5, causing the handrail support block 621 to rotate along the first pivot 623 and move into the movable cavity 51 until the handrail support block 621 is fully inserted into the movable cavity 51. At this point, the handrail 5 is folded in place. The limiting protrusion 611 of the handrail connector 61 holds the handrail support block 621 in place, and the handrail spring 622 is compressed, completing the folding operation of the handrail 5. Figure 10 As shown. With the armrests folded down, multiple chairs can be stacked vertically, as shown. Figure 12 As shown, five armchairs are stacked one on top of the other. Stacking them reduces their volume, lowers packaging costs, and facilitates warehousing and transportation, thus saving space.

[0063] When the handrail 5 needs to be unfolded, pull the handrail 5 upwards. Combined with the elastic restoring force of the handrail spring 622, the handrail support block 621 will pop outwards until it presses against the handrail connector 61, or until the limit hook 6212 engages in the limit groove 511. The handrail support block 621 then supports the handrail, completing the unfolding operation of the handrail 5. Figure 9 As shown.

[0064] In the above embodiments one and two, the components are fixed together with screws, which not only ensures high stability but also facilitates disassembly and assembly. The disassembly and assembly methods are simple. In particular, the handrail 5 can be disassembled, such as... Figure 11 As shown, the seat 1 and backrest 2 can also be disassembled and then packaged, which can minimize the packaging size and reduce transportation costs.

[0065] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the technical scope of the present invention. Therefore, other structures obtained by using the same or similar technical features as the above embodiments of the present invention are all within the protection scope of the present invention.

Claims

1. A stackable and foldable armchair, characterized in that, include: A chair seat and a chair back, the chair back being connected to the chair seat; A support frame that is rotatably connected to the chair seat; A chair seat flipping control device includes a rotating mechanism connected between a support frame and a chair seat, and at least one stop mechanism disposed within the chair seat and located on the side of the rotating mechanism. The rotating mechanism includes two connecting rods connected to the support frame and a rotating shaft connected between the two connecting rods and rotatably disposed on the back of the chair seat. Two limiting grooves for the two connecting rods to be inserted and a rotating groove for the rotating shaft to be inserted and rotated are formed on the back of the chair seat. Relief grooves for the ends of the connecting rods to be inserted are formed in the two limiting grooves. The stop mechanism includes a handle switch movably disposed within the chair seat, a locking tongue connected to the handle switch, and a pressure spring disposed between the locking tongue and the inner wall of the chair seat. A positioning locking hole for the end of the locking tongue to be inserted is formed on the side of the connecting rod near the locking tongue, and an operating inclined surface is formed at the end of the locking tongue.

2. The stackable armchair according to claim 1, characterized in that, The support frame includes a seat support rod supported on the back of the seat and at least one leg connected to the seat support rod, wherein the two connecting rods are connected to the seat support rod and a slot is formed on the back of the seat for the seat support rod to be inserted.

3. The stackable armchair according to claim 1, characterized in that, An installation limiting block is provided on the back of the chair seat, which covers the two limiting grooves and the rotating groove.

4. The stackable armchair according to claim 1, characterized in that, A receiving cavity for accommodating a stop mechanism is formed in the seat, and a pull-out port communicating with the receiving cavity and for the handle switch to be pulled out is formed on the seat.

5. The stackable armchair according to any one of claims 1 to 4, characterized in that, A handrail is provided on the support frame, and a handrail elastic flipping mechanism is provided between the handrail and the support frame. The handrail elastic flipping mechanism includes a handrail connector connected to the support frame and rotatably connected to the handrail, and an elastic flipping component rotatably disposed in the handrail. The elastic flipping component includes a handrail support block rotatably connected to the handrail, and a handrail spring disposed in the handrail support block. A movable cavity is formed in the handrail for the elastic flipping component to move, and an opening is formed on the handrail that communicates with the movable cavity and allows the handrail support block to protrude.

6. The stackable armchair according to claim 5, characterized in that, The handrail support block is rotatably connected to the handrail via a first rotating shaft, and a spring movable groove is formed on the handrail support block. The handrail spring is disposed in the spring movable groove and sleeved on the first rotating shaft.

7. The stackable armchair according to claim 5, characterized in that, A limiting protrusion is formed on one side of the handrail connector near the handrail support block. At the same time, the handrail connector is rotatably connected to the handrail through a second pivot.

8. The stackable armchair according to claim 5, characterized in that, A limiting hook is formed at one end of the handrail support block, and a limiting groove is formed on the inner wall of the movable cavity for the limiting hook to be hooked into.

Images