Assembled chair capable of increasing cabinet loading capacity

Abstract

The present invention discloses an assembled chair capable of increasing the amount of cabinets to be loaded, comprising two chair seat frames that are substantially extended forward and backward and are arranged at intervals from left to right, a chair seat surface layer that is fixed by the two chair seat frames and spread out from left to right, a chair foot frame, and a base mechanism connected to the chair foot frames; the two chair seat frames are detachably connected to the left and right ends of the base mechanism, respectively, and the two chair seat frames can be compressed and folded from left to right when being loaded into a cabinet. The present invention has the beneficial effect that the space occupied laterally by the chair can be compressed.

Description

Technical Field

[0001] The invention relates to an assembled chair, in particular to an assembled chair capable of increasing the amount of cabinets loaded. Background Art

[0002] The cost of chair manufacturing industry includes material cost, labor cost, manufacturing cost and transportation cost. A very important factor affecting transportation cost is the loading volume of chairs. For chairs that can be assembled and disassembled, the space they occupy before assembly is inversely proportional to the loading volume. Therefore, increasing the volume compression ratio of chairs when loading is an important means to save transportation cost.

[0003] For example, the patent application with publication number CN204336339U discloses a folding chair, including a backrest, a seat, a connecting piece and a locking piece. The backrest and the seat are connected by a connecting piece, and the backrest and the seat rotate around the connecting piece between a first position and a second position, wherein in the first position, the backrest is approximately in an upright position, and in the second position, the backrest is folded and is in a position that fits the seat, and the locking piece includes a first part and a second part, the first part is located on the backrest, and the second part is located on the seat, the first part and the second part of the locking piece cooperate, and the backrest can move relative to the seat in the direction of its rotation axis so that the first part and the second part are locked or disengaged, thereby preventing or allowing the backrest and the seat from rotating relative to each other. The chair has a large number of connecting pieces and locking pieces that realize the folding function of the backrest, and the structure is relatively complex. Since the folding and storage function is mainly used in the transportation process, the probability of use in actual use is low, so the cost of adding this part of the function is low in cost performance.

[0004] For example, the patent application with publication number CN201346027 discloses a chair that can be easily disassembled and folded without tools, especially a chair structure with foldable legs. It includes a chair backrest, a chair seat, and a chair leg frame on the left and right. The left and right sides of the chair backrest are symmetrically fixed with plugs; the head of each chair leg frame has a plug, and the plug can be tightly inserted into the plug; there is a crossbar on each chair leg frame, and the chair seat is movably connected to the crossbar. The above-mentioned folding chair structure can realize the folding function of the chair through a simple plug-in and pull-out action. Without any tools, the chair backrest and chair seat frame can be easily folded, thereby reducing space occupation and saving storage and transportation costs. Although the chair can better reduce space occupation, there are too many parts that need to be assembled, which is troublesome for users to assemble, especially users with poor hands-on ability.

[0005] In addition, for chairs used in office places, users sit for a long time, and the permeability of the user's buttocks and back is required to be higher. For example, the patent application with the publication number CN201509912U discloses a mesh chair, which includes chair legs, a chair frame, a seat and a chair back arranged in sequence from bottom to top. The seat includes a seat frame and a mesh cloth, and the mesh cloth is tightly installed on the upper edge of the seat frame. The chair back includes a back frame and a mesh cloth, and the mesh cloth is tightly installed on the periphery of the back frame. The two sides of the seat frame are hollowed out with staggered support rods. The mesh cloth has the characteristics of good air permeability and good elasticity. When people sit and lean on the mesh chair, the mesh cloth deforms with the weight of the human body's buttocks and back, and it is comfortable to use. After using it for a certain period of time, you only need to use a cleaning tool to wash the mesh cloth to achieve the purpose of cleaning the mesh cloth, which is convenient to clean. The staggered support rods hollowed out on both sides of the seat frame can increase the support force of the seat frame on the one hand, so that the force range of the seat frame is larger, and on the other hand, it can reduce the weight of the seat frame, so that the weight of the mesh chair is lighter. The chair keeps the mesh in a taut state, so the tension of the mesh increases sharply when the user sits down. After long-term use, the mesh is prone to reduced tension, partial relaxation, and damage at the connection between the edge of the mesh and the seat. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide an assembled chair which can increase the loading capacity of a cabinet and can compress the space occupied laterally by the chair.

[0007] The present invention is achieved through the following technical solutions.

[0008] An assembled chair capable of increasing the amount of cabinets loaded, comprising two chair seat frames which basically extend forward and backward and are arranged at intervals from left to right, a chair seat surface layer which is fixed by the two chair seat frames and spread out from left to right, a chair foot frame, and a base mechanism connected to the chair foot frames; the two chair seat frames are detachably connected to the left and right ends of the base mechanism respectively, and the two chair seat frames can be compressed and folded from left to right when used for cabinet loading.

[0009] As a further improvement of the present invention, after the chair is assembled, the seat surface layer is in a tensioned state.

[0010] As a further improvement of the present invention, the base mechanism includes a base and two adjustment seats that are detachably connected to corresponding chair seat frames; the two adjustment seats are rotatably connected to the left and right ends of the base respectively, and the rotation axes of both extend in the front-to-back direction; the two adjustment seats can be rotated in opposite directions so that the left-right spacing between the two chair seat frames changes.

[0011] As a further improvement of the present invention, the base and the adjustment seat respectively have a first limiting structure and a second limiting structure that can block each other, and are used to limit the maximum threshold of the left-right distance between the two chair frames.

[0012] As a further improvement of the present invention, the seat frame and the adjustment seat are respectively provided with a slot and an insertion structure; the insertion structure is inserted in the slot to limit the relative position of the seat frame and the adjustment seat.

[0013] As a further improvement of the present invention, there is a gap between the insertion structure and the slot; the adjustment seat has a blocking structure, which abuts against the side of the seat frame close to the base to prevent the seat frame and the adjustment seat from moving relative to each other.

[0014] As a further improvement of the present invention, the rear end of the seat frame is connected to a chair back frame extending basically upward; the rear end of the seat surface layer is connected to a chair back layer; the chair back layer is fixed by two chair back frames and spread left and right.

[0015] As a further improvement of the present invention, the chair back frame can be flipped forward so that the chair back frame and the chair seat frame can be folded and stowed when the cabinet is installed.

[0016] As a further improvement of the present invention, a connecting frame and a skeleton are provided between the seat frame and the chair back frame; the two ends of the connecting frame are respectively connected to the rear end of the seat frame and the bottom end of the chair back frame, and can be bent and deformed so that the chair back frame can be flipped toward the seat frame; after the chair is assembled, the skeleton supports the connecting frame to maintain its shape.

[0017] Beneficial effects of the present invention:

[0018] The present invention realizes a detachable connection between the left and right ends of the seat frame and the base, so that the two seat frames can be compressed and folded left and right, thereby compressing the space occupied laterally by the chair and increasing the cabinet loading capacity; in addition, through the rotation connection between the adjustment seat and the base, the user does not need to connect and install the seat frame and the adjustment seat when the seat surface layer is tensioned, and the assembly is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to help understand the purpose and advantages of the present invention, wherein:

[0020] Figure 1 This is a schematic diagram of the structure of a chair;

[0021] Figure 2 Schematic diagram of the structure of the chair after the seat surface layer is removed;

[0022] Figure 3 is a structural diagram of a chair frame;

[0023] Figure 4 This is an exploded diagram of the chair frame;

[0024] Figure 5 It is a schematic diagram of the structure of the skeleton;

[0025] Figure 6 is a structural schematic diagram of the connecting frame;

[0026] Figure 7 is a structural schematic diagram of the base structure;

[0027] Figure 8 This is an exploded schematic diagram of the base mechanism;

[0028] Fig. 9 It is a schematic diagram of the rotation of the adjustment seat during the load-bearing process;

[0029] Fig.10 Schematic diagram of the rotation of the adjustment seat when the chair moves left and right. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below based on the accompanying drawings and implementation examples.

[0031] The directional terms such as up, down, left, right, front, back, front, back, top, bottom, etc. mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings. The words "inside" and "outside" refer to the direction toward or away from the geometric center of a specific component, respectively. They are relative concepts, and therefore may change accordingly according to different locations and different usage conditions. Therefore, these or other directional terms should not be interpreted as restrictive terms.

[0032] Reference Figure 1-Figure 10 A chair comprises two chair frames 1 arranged at intervals on the left and right, a chair surface layer 2 fixed by the two chair frames 1 and spread apart on the left and right, a chair foot frame 4, and a base mechanism 3 connected to the chair foot frame 4.

[0033] The chair frame 1 includes a seat frame 11 extending substantially forward and backward, a back frame 12 extending substantially upward and downward, a connecting frame 13 connecting the rear end of the seat frame 11 and the bottom end of the back frame 12, and a frame 14. It should be noted that the seat frame 11 and the back frame 12 are not linear structures, but present a certain curvature based on ergonomics, but the overall extension direction of the two is forward and backward, and upward and downward.

[0034] The seat surface layer 2 is a surface layer structure with a certain degree of stretchability and can be stretched, which can support the user's buttocks and the user's back. It is preferably made of mesh fabric, which has the characteristics of good air permeability, high friction, and softness. In addition, it has excellent air permeability and resilience while ensuring load bearing. Specifically, the seat surface layer 2 includes a seat surface layer 21 fixed by two seat frames 11 and stretched to the left and right, and a seat back layer 22 fixed by two seat back frames 12 and stretched to the left and right.

[0035] The connecting frame 13 is made of elastic material, such as rubber, silicone, natural rubber and other rubber materials, and has strong performance of bending deformation under pressure and rebounding to restore the original shape. The frame 14 is made of rigid material, such as metal parts such as stainless steel, and has high structural strength. The connecting piece presents an arc-shaped segment structure, which naturally transitions the front-to-back extension direction of the seat frame 11 to the up-and-down extension direction of the seat back frame 12.

[0036] When the connecting frame 13 is not equipped with the frame 14, it can be bent and deformed so that the chair back frame 12 can be flipped forward, so that the chair back frame 12 and the seat frame 11 are folded and folded, so that the chair can compress the space occupied vertically, thereby increasing the cabinet loading capacity. When the frame 14 is assembled on the connecting frame 13, that is, after the chair is assembled, the frame 14 can support the connecting frame 13 so that the connecting frame 13 can maintain its original shape without deformation, so that the chair frame 1 becomes a firm and stable structure.

[0037] The seat frame 11 and the back frame 12 as the supporting body of the chair frame 1 need to have a certain rigidity, so that the chair frame 1 becomes a foldable structure that is soft and elastic only at its bending parts. Compared with other mechanical structures such as joints and hinges, it has fewer components and a simpler overall structure, so it is not easy to have mechanical failures, and the production cost is relatively lower.

[0038] Furthermore, one surface of the connecting frame 13 has a mounting groove 131 that is recessed inward and extends along the extending direction of the connecting frame 13, and the skeleton 14 is embedded in the mounting groove 131. The mounting groove 131 is preferably arranged on the inner side of the connecting frame 13, which can prevent the skeleton 14 from being exposed to the outside and affecting the appearance, and can also reduce the probability of the skeleton 14 being damaged by external environment such as collision. The skeleton 14 is an arc-shaped sheet structure in terms of structural shape. Of course, since the connecting frame 13 is made of elastic material and the skeleton 14 is made of rigid material, the skeleton 14 is slightly larger than the mounting groove 131 in size, so that the skeleton 14 is embedded in the mounting groove 131 with interference fit to prevent the skeleton 14 from loosening in the mounting groove 131. In addition, the width of the skeleton 14 and the mounting groove 131 should be increased as much as possible, so that the skeleton 14 has better supporting performance.

[0039] In order to further improve the structural strength and stability of the chair frame 1 after assembly, one surface of the seat frame 11 and the seat back frame 12 has an extension groove 132 connected to the mounting groove 131. Obviously, the surface where the extension groove 132 is located is also the inner side of the seat frame 11 and the seat back frame 12. The two ends of the frame 14 are respectively embedded in the corresponding extension grooves 132. Similarly, the frame 14 is slightly larger than the extension groove 132 in size.

[0040] The two ends of the frame 14 are detachably connected to the seat frame 11 and the back frame 12. Compared with the elastic material connecting frame 13, the frame 14 and the seat frame 11 and the back frame 12 are fixedly connected, which has better connection stability. The detachable connection method also facilitates the disassembly and installation of the chair frame 1. More specifically, the frame 14 and the seat frame 11 and the back frame 12 are fixedly connected using multiple fasteners.

[0041] In order to increase the shear stress load on the connecting frame 13 and to improve the structural strength of the connecting frame 13 in the inner and outer width directions, the bottom of the mounting groove 131 has at least one reinforcing groove 133 that is recessed inward and extends along the extending direction of the mounting groove 131, and the surface of the frame 14 that is attached to the bottom of the mounting groove 131 has a reinforcing structure 141 that is inserted into the reinforcing groove 133. More specifically, two reinforcing grooves 133 are provided at the intersection of the bottom of the mounting groove 131 and the two groove walls, and correspondingly, the reinforcing structures 141 that are folded are provided on both sides of the frame 14.

[0042] The connecting frame 13 has a plurality of partition grooves 134 arranged at intervals along its extension direction, and the partition grooves 134 form notches at least on the inner curved surface of the connecting frame 13. In the present embodiment, the partition grooves 134 form notches on the inner side surface and the top surface (inner curved surface). During the gradual folding of the connecting member, the width of the partition grooves 134 will be continuously compressed, which plays a buffering role, thereby preventing the irreversible deformation damage caused by excessive local squeezing of the connecting frame 13 when the seat frame 11 and the back frame 12 are folded. At the same time, the partition grooves 134 can also make the connecting frame 13 easier to bend, which is more labor-saving when folding. The number, spacing, and width of the partition grooves 134 are determined according to the actual application.

[0043] Although the connecting frame 13 can be supported by the skeleton 14, and the connecting piece can be well connected to the seat frame 11 and the back frame 12, it is still easy to be misaligned between the two ends of the connecting frame 13 and the rear end of the seat frame 11 and the bottom end of the back frame 12. Therefore, a connecting piece 15 is provided between the two ends of the connecting frame 13 and the rear end of the seat frame 11 / the bottom end of the back frame 12, which is used to connect the two ends of the connecting piece and the rear end of the seat frame 11 / the bottom end of the back frame 12. Due to the characteristics of the connecting piece being made of elastic material, a part of the connecting piece 15 is embedded in the connecting frame 13, and the other part is fixed to the seat frame 11 / the back frame 12. The part of the connecting piece 15 embedded in the connecting frame 13 plays a role similar to the skeleton 14, supporting the end of the connecting frame 13, while the other part of the connecting piece 15 is fixedly connected to the seat frame 11 / the back frame 12, which can improve the connection stability.

[0044] More specifically, the connector 15 includes a first connector part 151 and a second connector part 152. Both the first part and the second connector part 152 are plate-like structures, and the two are in an angled relationship and are connected as one. The connector 15 is the same as the frame 14 and is also made of a rigid material. The bottom of the mounting groove 131 has an inwardly recessed embedding groove 135 near both ends. The first connector part 151 is embedded in the embedding groove 135. The first connector part 151 is also slightly larger than the embedding groove 135 in size, so that the first connector part 151 is not easy to loosen in the embedding groove 135. The second connector part 152 fits on the bottom of the mounting groove 131 and the extension groove 132. The frame 14 fits on the second connector part 152, so that the second connector part 152 is clamped between the bottom of the mounting groove 131 and the extension groove 132 and the frame 14, and the second connector part 152 and the extension groove 132 are fixed together. First, the connector 15 not only serves to connect the end of the connector and the rear end of the seat frame 11 / the bottom end of the backrest frame 12, but the first part 151 of the connector inserted in the embedding groove 135 can further increase the shear stress load on both ends of the connector; and the second part 152 of the connector is clamped between the bottom of the installation groove 131, the extension groove 132 and the frame 14 to improve the firmness of the connector on the seat frame 11 / backrest frame 12. In addition, the second part 152 of the connector and the extension groove 132 are also detachably fixedly connected using multiple fasteners.

[0045] The two chair seat frames 11 are detachably connected to the left and right ends of the base mechanism 3. When used in a cabinet, the two chair seat frames 11 can be compressed and folded left and right, and the seat surface layer 2 is also folded up at the same time, so that the chair can compress the space occupied horizontally.

[0046] By compressing the space that chairs can occupy in both horizontal and vertical directions, the loading capacity of chairs can be greatly increased, saving logistics and transportation costs.

[0047] It should be noted that, in order to prevent the seat surface layer 21 from collapsing directly when the user sits, the seat surface layer 21 is in a tensioned state after the chair is assembled, that is, the seat surface layer 21 is stretched to a certain extent to the left and right, so as to stably support the user's buttocks. However, when the seat surface layer 21 is naturally stretched to the left and right, the left and right spacing of the two seat frames 11 is smaller than the left and right spacing after the chair is assembled, which will cause a certain size deviation during installation, that is, the seat frame 11 and the base mechanism 3 need to be connected and installed in the state of stretching the seat surface layer 21 to the left and right. It is difficult for the user to maintain the seat surface layer 21 stretched during assembly without the help of tools, and it is also difficult to control the stretching range, which makes it difficult to align the seat frame 11 and the base mechanism 3.

[0048] Based on this technical problem, the base mechanism 3 includes a base 31 and two adjustment seats 32 that are detachably connected to the corresponding seat frames 11. The two adjustment seats 32 are rotatably connected to the left and right ends of the base 31, and the rotation axes of the two seats extend in the front-to-back direction. The two adjustment seats 32 can be rotated in opposite directions to change the left-right spacing between the two seat frames 11. When the two adjustment seats 32 are flipped upward relative to the base 31 at the same time, the left-right spacing between the two ends of the base mechanism 3 can be reduced. When assembling, the user can ignore whether the seat surface layer 21 is stretched. First, the two seat frames 11 are fixedly connected to the corresponding adjustment seats 32, and then the two seat frames 11 are pressed downward or the base 31 is pushed upward, so that the two adjustment seats 32 can be flipped downward relative to the base 31, thereby increasing the left-right spacing between the two seat frames 11, that is, stretching the seat surface layer 21 to make it in a tensioned state.

[0049] After the two adjustment seats 32 are flipped downward relative to the base 31 until the three are flush, if they continue to flip downward, the left-right distance between the two seat frames 11 will be reduced. Therefore, the base 31 and the adjustment seat 32 respectively have a first limiting structure 311 and a second limiting structure 321 that can block each other, which are used to limit the maximum threshold of the left-right distance between the two seat frames 1. Due to the self-weight of the seat frame 11 and the adjustment seat 32, in the absence of external forces, the adjustment seat 32 and the base 31 can be stably maintained in a state where the first limiting structure 311 and the second limiting structure 321 block each other. In addition, when the first limiting structure 311 and the second limiting structure 321 block each other, the adjustment seat 32 can be set to be flush with the base 31, or the adjustment seat 32 can be set to be slightly tilted upward relative to the base 31.

[0050] The seat frame 11 and the adjustment seat 32 are respectively provided with a slot 111 and an insertion structure 322. The insertion structure 322 is inserted in the slot 111 to limit the relative position of the seat frame 11 and the adjustment seat 32. The seat frame 11 and the adjustment seat 32 are detachably connected using multiple fasteners. During assembly, the insertion structure 322 of the adjustment seat 32 is first inserted into the slot 111 of the seat frame 11, and then connected using fasteners, so as to facilitate finding the connection and installation position.

[0051] Since the position of the adjustment seat 32 is adjusted by rotation, it is difficult to ensure that the insertion structure 322 is completely aligned with the slot 111. Therefore, a gap is provided between the insertion structure 322 and the slot 111 to facilitate insertion, but it is easy to cause looseness between the two. Therefore, the adjustment seat 32 has a blocking structure 323, which abuts against the side of the seat frame 11 close to the base 31 to prevent the seat frame 11 and the adjustment seat 32 from moving relative to each other. Moreover, a groove is also formed between the insertion structure 322 and the blocking structure 323, so that the seat frame 11 and the adjustment seat 32 can be inserted into each other.

[0052] It should be noted that when the seat surface layer 2 is loaded with pressure (when the user sits on the seat surface layer 21), the tension of the seat surface layer 21 will surge, especially when a user with a heavier weight or a user sits on the seat surface layer 21 quickly, the degree of tension surge will be aggravated. This situation can easily cause irreversible tensile damage to the seat surface layer 21, shortening its service life, and can also easily damage the edge of the seat surface layer 21 fixed to the seat frame 11. It is precisely because of the rotational connection between the adjustment seat 32 and the base 31 that when the seat surface layer 2 is under pressure, the sudden increase in the tension of the seat surface layer 21 will exert a force on the seat frame 11, so that the adjustment seat 32 will flip upward relative to the base 31, shortening the left and right distance between the two seat frames 11, and then reducing the degree of the sudden increase in the tension of the seat surface layer 21, playing a certain buffering role, which can reduce the damage to the seat surface layer 21 to extend its service life, and at the same time can also have a certain elastic buffer, reducing the stiffness of the user when sitting on the seat surface layer 21 and improving the comfort.

[0053] The two adjustment seats 32 rotate in opposite directions (i.e., the two adjustment seats 32 flip up or flip down relative to the base 31 at the same time) so that the left-right spacing between the two chair frames 1 changes, and the two adjustment seats 32 rotate in the same direction (i.e., one adjustment seat 32 flips up relative to the base 31, and the other adjustment seat 32 flips down relative to the base 31) so that the left-right tilt range of the two seat surface layers 2 changes. When the user sits on the seat surface layer 21 and tilts the body to the left or right, the two adjustment seats 32 rotate in the same direction, so that the chair has the function of swinging left and right. Correspondingly, the first limiting structure 311 and the second limiting structure 321 that block each other can also be used to limit the maximum angle of the adjustment seat 32 flipping downward relative to the base 31, that is, to limit the maximum range of swinging left and right.

[0054] A first elastic reset member 3-1 is provided between the base 31 and the adjustment seat 32. The first elastic reset member 3-1 is used to drive the adjustment seat 32 to rotate and reset. Preferably, a spring is used. When the user stands up or sits upright, the auxiliary seat surface layer 21 and the base layer quickly return to a horizontal state.

[0055] At least one support frame 5 is provided between the two chair frames 1, and the left and right ends of the support frame 5 are respectively connected to the corresponding chair frames 1. When the left and right spacing between the two chair frames 1 gradually decreases from the maximum threshold, the support frame 5 always applies a support force to the two chair frames 1 to resist the continued decrease of the left and right spacing, thereby further reducing the degree of the sudden increase in the tension of the seat surface layer 21 and improving the buffering effect. In addition, the left and right ends of the support frame 5 and the corresponding chair frame 1 are detachably connected. When assembling, the seat frame 11 and the adjustment seat 32 are first connected, and then the support frame 5 is connected. In this embodiment, the support frame 5 is set as a long sheet structure with a certain curvature and is made of plastic material so that it can withstand a certain degree of bending deformation.

[0056] The support frame 5 serves as a crossbeam structure that directly connects the two chair frames 1. The support frames 5 are respectively arranged between the front parts of the two seat frames 11 and in front of the adjustment seat 32, and between the upper parts of the two seat back frames 12, so that the two seat frames 11 and the two support frames 5 form a closed structure, which can improve the overall structural stability and anti-deformation ability.

[0057] A lumbar support 6 is provided between the two chair back frames 12 at a position corresponding to the user's waist. The left and right ends of the lumbar support 6 are respectively connected to the corresponding chair back frames 12, and can support the chair back layer 22. When the user's back is fully supported on the chair back layer 22, it can provide better support for the waist, meet ergonomic requirements, and improve comfort.

[0058] In addition, the base 31 is rotatably connected to the top of the chair leg frame 4, and its rotation axis extends in the left-right direction, so that the chair has the function of swinging forward and backward, and the two functions of swinging forward and backward and swinging left and right are independent of each other and do not interfere with each other. A second elastic reset member 3-2 is provided between the base 31 and the top of the chair leg frame 4, which is used to drive the base 31 to rotate and reset, and the second elastic reset member 3-2 is also preferably a spring.

[0059] Finally, it should be noted that the above implementation cases are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned implementation cases, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned implementation cases, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the implementation cases of the present invention.

Claims

1. An assembled chair capable of increasing the amount of cabinets, characterized in that: The invention comprises two seat frames extending forward and backward and arranged at intervals left and right, a seat surface layer fixed by the two seat frames and stretched left and right, a foot frame, and a base mechanism connecting the foot frames; the two seat frames are detachably connected to the left and right ends of the base mechanism respectively, and are used to compress and gather the two seat frames left and right when loading into a cabinet, and after the chair is assembled, the seat surface layer is in a tensioned state, characterized in that the base mechanism comprises a base and two adjustment seats detachably connected to the corresponding seat frames respectively; the two adjustment seats are rotatably connected to the left and right ends of the base respectively, and the rotation axes of both extend along the front-back direction; the two adjustment seats are rotated in opposite directions so that the left and right spacing between the two seat frames changes, and the base and the adjustment seat respectively have a first limiting structure and a second limiting structure that block each other, which are used to limit the maximum threshold of the left and right spacing between the two seat frames, and the seat frame and the adjustment seat are respectively provided with a slot and an insertion structure; the insertion structure is inserted in the slot to limit the relative position of the seat frame and the adjustment seat.

2. The assembled chair capable of increasing the amount of cabinets according to claim 1, characterized in that: There is a gap between the insertion structure and the slot; the adjustment seat has a blocking structure, which abuts against the side of the seat frame close to the base to prevent the seat frame and the adjustment seat from moving relative to each other.

3. The assembled chair capable of increasing the amount of cabinets according to claim 1, characterized in that: The rear end of the seat frame is connected to a seat back frame extending upward; the rear end of the seat surface layer is connected to a seat back layer; the seat back layer is fixed by two seat back frames and is spread open to the left and right.

4. The assembled chair capable of increasing the amount of cabinets according to claim 3, characterized in that: The chair back frame flips forward, and is used for folding and folding the chair back frame and the chair seat frame when loading into the cabinet.

5. The assembled chair capable of increasing the amount of cabinets according to claim 4, characterized in that: A connecting frame and a frame are provided between the seat frame and the chair back frame; the two ends of the connecting frame are respectively connected to the rear end of the seat frame and the bottom end of the chair back frame, and the chair back frame is bent and deformed so as to flip toward the seat frame; after the chair is assembled, the frame supports the connecting frame to maintain its shape.

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