Sofa with foldable backrest

Abstract

According to the sofa with the foldable backrest, two first empty grooves are symmetrically formed in the two sides of a sofa body, positioning seats are fixedly arranged in the first empty grooves, a plurality of second through holes are formed in the peripheral sides of the positioning seats, and the backrest is placed at the rear end of the sofa body; a positioning shaft inserted into the first empty groove is fixedly arranged at the bottom end of the backrest, when the backrest is not used, the backrest can be folded and placed above the sofa body, the space is greatly saved, the sofa is particularly suitable for living environments with limited space, such as small apartments, dormitories and the like, and when a rest is not needed in the daytime, the backrest can be folded, so that the space is saved; more activity space is vacated for a living room or a room; when a user needs to have a rest at night, the backrest can be quickly unfolded, the normal use function of the sofa is recovered, and the requirements for space in different scenes are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to furniture technical field, concretely is a sofa with foldable backrest. BACKGROUND

[0002] The sofa is one of the common furniture in modern family, and generally comprises a sofa seat, an armrest and a backrest. In order to be comfortable, the backrest needs to be higher than the armrest, which leads to some problems when multiple sofas are stacked and transported: the sofa occupies a large space, and when not in use, it will waste storage space, especially in living environments with limited space, such as small-sized apartments, dormitories, etc., which cannot meet the demand for space in different scenarios. SUMMARY

[0003] (I) Technical problem solved

[0004] In view of the deficiencies in the prior art, the utility model provides a sofa with foldable backrest.

[0005] (II) Technical scheme

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a sofa with foldable backrest, comprising a sofa body and a backrest, two first hollow slots are symmetrically arranged on both sides of the sofa body, a positioning seat is fixedly arranged inside the first hollow slot, a plurality of second through holes are provided on the circumferential side of the positioning seat, the backrest is placed at the rear end of the sofa body, and a positioning shaft is fixedly arranged at the bottom end of the backrest and inserted into the first hollow slot, the positioning shaft is rotatably connected with the sofa body, the two ends of the positioning shaft respectively penetrate through two positioning seats, and a positioning disc is arranged at the two ends of the positioning shaft, a plurality of first through holes are provided on the circumferential side of the positioning disc corresponding to the second through holes, a limiting disc is arranged inside the first hollow slot, a plurality of limiting rods are arranged on the circumferential side of the limiting disc, and the limiting rods can penetrate through the first through holes and be inserted into the inside of the second through holes.

[0007] In order to make the limiting disc placed more firmly in the first hollow slot, the utility model improves that a magnet block is inlaidly arranged in the middle part of the limiting disc, and the material of the positioning disc is iron.

[0008] Further, the utility model improves that a cover is further arranged at the first hollow slot, and the cover can be inserted into the inside of the first hollow slot and is screw-connected with the first hollow slot.

[0009] Further, the utility model improves that a grabbing block is arranged at the outer end of the limiting disc, and the inner wall of the cover contacts the grabbing block.

[0010] In order to make the back more stable after folding, the utility model discloses the improvement has, the inside symmetry of the sofa body is provided with two positioning holes, the rear end of the back is provided with two second air slots at the top of the back symmetry, the inside of second air slot is equipped with the limiting screw rod that can be inserted to the inside of positioning hole and passes through the back, limiting screw rod is connected with the back screw, one end of limiting screw rod is equipped with the stirring block in the inside of second air slot.

[0011] Further, the utility model discloses the improvement has, the rear end of the back is equipped with a plurality of baffle that shields second air slot, and the baffle is fixed in the rear end of the back through screw.

[0012] (Three) beneficial effects

[0013] Compared with the prior art, the utility model provides a sofa with foldable back, which has the following

[0014] Beneficial effects:

[0015] Through the design of foldable back, when the back is not used, it can be folded and placed above the sofa body, greatly saving space, especially suitable for limited living environment, such as small apartment, dormitory, etc., when not needing to rest in the daytime, the back can be folded to free up more space for living room or room, and when needing to rest at night, the back can be quickly unfolded to restore the normal use function of the sofa, meeting the demand for space in different scenes. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0017] Figure 2 It is the inside structure schematic diagram of first air slot in the utility model;

[0018] Figure 3 It is the three-dimensional structure schematic diagram of the utility model Figure 1 It is the partial enlarged structure schematic diagram of A in the utility model;

[0019] Figure 4 It is the partial enlarged structure schematic diagram of B in the utility model Figure 1 It is the partial enlarged structure schematic diagram of B in the utility model;

[0020] In the drawing: 1, sofa body; 2, back; 3, positioning shaft; 4, positioning disc; 5, first through hole; 6, first air slot; 7, positioning seat; 8, second through hole; 9, limiting disc; 10, limiting rod; 11, grabbing block; 12, magnet block; 13, cover; 14, limiting screw rod; 15, positioning hole; 16, second air slot; 17, baffle. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described 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, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0022] Please refer to Figures 1-4 The utility model discloses a backrest foldable sofa, including sofa body 1 and backrest 2, the both sides symmetry of sofa body 1 is provided with two first empty slot 6, the inside fixed position seat 7 of first empty slot 6 is equipped with a plurality of second through -hole 8 in the circumferential side of position seat 7, backrest 2 places sofa body 1's rear end, and the bottom end of backrest 2 is fixed with the position axle 3 of inserting to the inside of first empty slot 6, the position axle 3 is rotatably connected with sofa body 1, and the both ends of position axle 3 respectively penetrate two position seats 7, and the both ends of position axle 3 are equipped with position disc 4, and a plurality of first through -hole 5 are set up in the circumferential side of position disc 4 corresponding second through -hole 8, the inside of first empty slot 6 is equipped with limit disc 9, and the circumferential side of limit disc 9 is equipped with a plurality of limit rod 10, and limit rod 10 can penetrate first through -hole 5 and insert to the inside of second through -hole 8.

[0023] In the embodiment, the middle part of the limit disc 9 is inlaid with a magnet block 12, the material of the position disc 4 is iron, the first empty slot 6 is also provided with a cover 13, the cover 13 can be inserted into the inside of the first empty slot 6 and is threadedly connected with the first empty slot 6, the outer end of the limit disc 9 is provided with a grabbing block 11, the inner wall of the cover 13 contacts the grabbing block 11, and the limit disc 9 can be placed more firmly in the first empty slot 6.

[0024] In the embodiment, the inner side of the sofa body 1 is symmetrically provided with two positioning holes 15, the rear end of the backrest 2 is symmetrically provided with two second empty slots 16 located at the top of the backrest 2, the inside of the second empty slot 16 is provided with a limiting screw rod 14 penetrating through the backrest 2 and capable of being inserted into the inside of the positioning hole 15, the limiting screw rod 14 is threadedly connected with the backrest 2, one end of the limiting screw rod 14 is provided with a pushing block located in the inside of the second empty slot 16, the rear end of the backrest 2 is provided with a plurality of baffles 17 shielding the second empty slot 16, and the baffles 17 are fixed on the rear end of the backrest 2 by screws, so that the backrest 2 is more stable after being folded.

[0025] The position axle 3 is rotatably connected with the sofa body 1, at this time, the position discs 4 at both ends of the position axle 3 are located in the first empty slot 6, and a plurality of first through -holes 5 on the circumferential side of the position disc 4 correspond to a plurality of second through -holes 8 on the circumferential side of the position seat 7;

[0026] The limiting disc 9 is arranged in the first slot 6, and a plurality of limiting rods 10 on the periphery of the limiting disc 9 can penetrate the first through hole 5 and be inserted into the second through hole 8, so as to realize the initial positioning and fixing of the backrest 2 on the sofa body 1, wherein the magnet block 12 inlaid in the middle part of the limiting disc 9 can be adsorbed with the positioning disc 4 made of iron, so as to further enhance the stability of the limiting disc 9 and prevent the limiting disc 9 from shaking by itself;

[0027] The cover 13 is inserted into the first slot 6 and is threadedly connected with the first slot 6, the inner wall of the cover 13 contacts the grabbing block 11 at the outer end of the limiting disc 9, so that the structure in the first slot 6 can be protected, and the cover 13 can also play a certain limiting role on the limiting disc 9;

[0028] The second slot 16 is symmetrically arranged at the rear end of the backrest 2, the limiting screw 14 penetrating the backrest 2 and being capable of being inserted into the positioning hole 15 symmetrically arranged in the inner side of the sofa body 1 is arranged in the second slot 16, so that the limiting screw 14 is threadedly connected with the backrest 2, the actuating block at one end of the limiting screw 14 is located in the second slot 16, so as to facilitate subsequent operation, and after the screw is operated, a plurality of baffle plates 17 are fixed on the rear end of the backrest 2 by screws, so as to shield the second slot 16 and play a role of beauty and protection;

[0029] When the backrest 2 needs to be folded, the cover 13 is first unscrewed, the structure in the first slot 6 is exposed, the limiting disc 9 is rotated through the grabbing block 11, the limiting rod 10 is separated from the first through hole 5 and the second through hole 8, the limiting on the positioning disc 4 is released, then the backrest 2 is lifted upwards, the positioning shaft 3 is rotated in the first slot 6, and the backrest 2 is folded to a proper position above the sofa body 1, and the number of the first through hole 5 and the second through hole 8 is not limited;

[0030] If the backrest 2 needs to be fixed in the folded state, the limiting rod 10 is inserted into the second through hole 8 again through the first through hole 5, so as to realize the fixing of the backrest 2 in the folded state;

[0031] If the normal use state of the backrest 2 needs to be restored, the above steps are repeated, the limiting rod 10 is separated, the backrest 2 is lowered, and the limiting rod 10 is inserted into the through hole through the rotation of the limiting disc 9, so as to be fixed;

[0032] When the backrest 2 is folded, the limiting screw 14 is rotated, the limiting screw 14 is inserted into the positioning hole 15, so as to make the backrest 2 more firmly folded on the sofa body 1, and when the backrest 2 is used, the limiting screw 14 can be accommodated in the second slot 16.

[0033] The structure stable and reliable backrest 2 and the sofa body 1 are connected through the positioning shaft 3, the positioning seat 7, the positioning disc 4, the limiting disc 9 and the like, and the cooperation of the plurality of second through holes 8, the first through hole 5 and the limiting rod 10 can ensure that the backrest 2 can be stably fixed in the unfolded and folded states and cannot shake or shift. Meanwhile, the magnet block 12 in the middle of the limiting disc 9 is adsorbed to the ferrous positioning disc 4, further enhancing the stability of the structure, so that the sofa can maintain a good connection state even when used for a long time or subjected to external force impact, prolonging the service life of the sofa.

[0034] In addition, the setting of the cover 13 can not only protect the structure inside the first hollow groove 6 from dust, sundries and the like, but also can limit and protect the limiting disc 9 to a certain extent, preventing the limiting disc 9 from rotating due to accidental impact during use, and ensuring the reliability of the entire structure.

[0035] The user only needs to complete several simple steps such as rotating the limiting disc 9, lifting or lowering the backrest 2 and the like, without the need for complex tools or professional skills. For example, the design of the grabbing block 11 at the outer end of the limiting disc 9 facilitates easy rotation of the limiting disc 9 by the user, and the setting of the poking block at one end of the limiting screw 14 also facilitates quick operation of the limiting screw 14 by the user to realize fixing and unlocking of the backrest 2. This convenient operation mode improves the user experience, saves time and effort.

[0036] The baffle 17 arranged at the rear end of the backrest 2 is fixed by screws, which not only can shield the second hollow groove 16, making the overall appearance of the sofa more neat and beautiful, but also can play a certain protection role to prevent dust, foreign matter and the like from entering the inside of the second hollow groove 16 and affecting the normal use of the limiting screw 14 and the like. This detail design not only considers practicability, but also takes into account aesthetics, improves the quality and grade of the sofa, and can better meet the aesthetic and functional needs of consumers for home products.

[0037] In the description in the present document, it should be noted that the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0038] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application.

Claims

1. A sofa with a foldable backrest, comprising a sofa body (1) and a backrest (2), characterized in that: Two first slots (6) are symmetrically arranged on both sides of the sofa body (1). A positioning seat (7) is fixedly arranged inside the first slot (6). A plurality of second through holes (8) are provided around the positioning seat (7). The backrest (2) is placed at the rear end of the sofa body (1). A positioning shaft (3) inserted into the first slot (6) is fixedly arranged at the bottom end of the backrest (2). The positioning shaft (3) is rotatably connected to the sofa body (1). The two ends of the positioning shaft (3) pass through the two positioning seats (7) respectively. A positioning plate (4) is provided at both ends of the positioning shaft (3). A plurality of first through holes (5) are provided around the positioning plate (4) corresponding to the second through holes (8). A limiting plate (9) is provided inside the first slot (6). A plurality of limiting rods (10) are provided around the limiting plate (9). The limiting rods (10) can pass through the first through holes (5) and be inserted into the second through holes (8).

2. A sofa with a foldable backrest according to claim 1, characterized in that: The middle part of the limiting disk (9) is inlaid with a magnet block (12), and the positioning disk (4) is made of iron.

3. A sofa with a foldable backrest according to claim 2, characterized in that: A cover (13) is also provided at the first empty slot (6), and the cover (13) can be inserted into the interior of the first empty slot (6) and threadedly connected to the first empty slot (6).

4. A sofa with a foldable backrest according to claim 3, characterized in that: The outer end of the limiting plate (9) is provided with a gripping block (11), and the inner wall of the cover (13) contacts the gripping block (11).

5. A sofa with a foldable backrest according to claim 4, characterized in that: Two positioning holes (15) are symmetrically arranged on the inner side of the sofa body (1). Two second slots (16) located at the top of the backrest (2) are symmetrically arranged at the rear end of the backrest (2). The second slot (16) is provided with a limiting screw (14) that penetrates the backrest (2) and can be inserted into the positioning hole (15). The limiting screw (14) is threadedly connected to the backrest (2). One end of the limiting screw (14) is provided with a toggle block located inside the second slot (16).

6. A sofa with a foldable backrest according to claim 5, characterized in that: The backrest (2) has a plurality of baffles (17) at its rear end that cover the second slot (16), and the baffles (17) are fixed to the rear end of the backrest (2) by screws.

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