阅读说明：本技术 一种座椅及其包装方法 (Seat and packaging method thereof ) 是由 刘秋生 薛栋 于 2021-07-30 设计创作，主要内容包括：本发明公开了一种座椅及其包装方法,座椅包括椅背、椅座和连接支架,所述椅背包括多个组装模块,所述多个组装模块之间相互拼接组装以构成所述椅背,所述连接支架的一端与椅座可拆卸连接,所述连接支架的另一端与所述多个组装模块中的一个可拆卸连接；且所述多个组装模块中的至少一个上设置有储藏槽,所述椅座的底端面上设有储物空间,所述储藏槽与储物空间均可用于放置椅背和椅座所属座椅中其它座椅部件。由于椅背包括多个组装模块,在输送时还可以将多个组装模块拆分开来堆放,便于输送运输。同时座椅拆分后,扶手、支脚、支撑轮等部件可以分批置入储藏槽和储物空间,大幅缩小了装箱量,就可以选用较小体积的箱子,便于座椅的输送。(The invention discloses a chair and a packaging method thereof, wherein the chair comprises a chair back, a chair seat and a connecting support, the chair back comprises a plurality of assembling modules, the assembling modules are spliced and assembled with each other to form the chair back, one end of the connecting support is detachably connected with the chair seat, and the other end of the connecting support is detachably connected with one of the assembling modules; and at least one of the plurality of assembly modules is provided with a storage groove, the bottom end face of the seat is provided with a storage space, and the storage groove and the storage space can be used for placing other seat parts in the seat to which the seat back and the seat belong. Because the chair back comprises a plurality of assembly modules, the assembly modules can be disassembled and stacked during conveying, and conveying and transportation are facilitated. Meanwhile, after the seat is disassembled, the storage tank and the storage space can be placed in batches by the components such as the armrests, the supporting legs and the supporting wheels, so that the boxing quantity is greatly reduced, boxes with small volumes can be selected for use, and the seat is convenient to convey.)

1. A seat, characterized by: the chair comprises a chair back, a chair seat and a connecting support, wherein the chair back comprises a plurality of assembling modules which are spliced and assembled with one another to form the chair back; and at least one of the plurality of assembly modules is provided with a storage groove, the bottom end face of the seat is provided with a storage space, and the storage groove and the storage space can be used for placing other seat parts in the seat to which the seat back and the seat belong.

2. The seat according to claim 1, wherein: the plurality of assembling modules comprise an upper back plate and a lower back plate, a first positioning groove is formed in one of the upper back plate and the lower back plate, a first positioning protrusion is arranged on the other of the upper back plate and the lower back plate, the first positioning protrusion is inserted into the first positioning groove, so that the upper back plate and the lower back plate are in inserting fit to form a bearing part, the upper back plate and the lower back plate can be relatively fixed through screw connection after the upper back plate and the lower back plate are in inserting fit, and the connecting support and the lower back plate are detachably connected.

3. The seat according to claim 2, wherein: the lower back plate is provided with an embedded groove, the connecting support is embedded in the embedded groove and detachably connected with the groove bottom of the embedded groove through screws, the number of the storage grooves is at least two, the at least two storage grooves are respectively arranged on two sides of the embedded groove, and the storage grooves extend along the length direction of the lower back plate.

4. The seat according to claim 2, wherein: the plurality of assembling modules further comprise two side wings, and the upper back plate, the lower back plate and the two side wings are integrally formed by adopting a plastic material; the length of each side wing is smaller than that of the bearing piece formed by the splicing and matching of the upper back plate and the lower back plate; the two side wings are respectively positioned at two sides of the bearing part and extend outwards in an inclined way towards the front end plate surface of the bearing part, the side wall of the upper back plate is provided with the second positioning protrusion, the side wings are provided with the second positioning groove, and when the second positioning protrusion is inserted into the second positioning groove, the side wings are positioned at one side of the bearing part and can be connected through screws; and a third positioning bulge is arranged on the side wall of the lower back plate, when the second positioning bulge is inserted into the second positioning groove, the third positioning bulge is also arranged in the second positioning groove, and the groove wall of the second positioning groove presses the third positioning bulge to be always attached to the second positioning bulge.

5. The seat according to claim 1, wherein: the seat support includes cushion and time type frame, the cushion is arranged in on the time type frame, the upper surface of time type frame is equipped with a plurality of intervals side by side and sets up and has elastic first support piece, first support piece cooperation time type frame constitutes the bottom sprag of cushion, just in the frame of time type frame in the below of first support piece is provided with the third connecting piece, be provided with the chassis on the third connecting piece, the chassis with the connection can be dismantled to the link, in the frame of time type frame in the below of first support piece except but form outside the third connecting piece storing space.

6. The seat according to claim 5, wherein: first support piece is serpentine spring, serpentine spring's quantity is a plurality of, and a plurality of serpentine spring set up side by side, and every serpentine spring's both ends all are provided with first connecting piece, first connecting piece has head end and tail end along self length direction, the tail end of first connecting piece is equipped with the jack, serpentine spring's end insert make in the jack serpentine spring can dismantle with first connecting piece and be connected, the head end downwarping of first connecting piece forms first flexion, first flexion with form the catching groove between the tail end of first connecting piece, the left and right sides frame of returning the type frame detain respectively in the catching groove on the first connecting piece in serpentine spring both ends.

7. The seat according to claim 5, wherein: the support device is characterized by further comprising a plurality of second support pieces arranged side by side, wherein the second support pieces and the first support pieces are vertically arranged, and two ends of each second support piece are respectively connected with the adjacent first support pieces.

8. The seat according to claim 1, wherein: be provided with linking area and storage area on the bottom face of seat support, the last chassis that can dismantle of linking area is provided with, linking bridge with the connection can be dismantled to the chassis, just the bottom face of seat support in storage area to the inside of seat support is sunken in order to form storage space.

9. A method for packaging a seat according to claim 4, wherein: the method comprises the following steps: s1, preparing a box body for accommodating the seat; s2, separating the chair back, the chair seat and the connecting bracket from each other, and separating the chair back into an upper back plate, a lower back plate and two side wings which are in an unconnected state; the other chair parts of the chair, except the chair back, the chair seat and the connecting bracket, are divided into three parts, namely a first part assembly, a second part assembly and a third part assembly, wherein the first part assembly comprises a supporting wheel, the second part assembly comprises an armrest supporting surface, and the third part comprises a chassis, supporting legs and a headrest; s3, placing the chair seat in the box body, and placing the first part of components in the storage space on the chair seat; s4, stacking the upper back plate, the lower back plate and the two side wings above the seat, and placing the second part of components into a storage groove; and S5, placing the connecting bracket and the third part assembly in the box body except for the vacant area at the back of the seat and the chair.

10. The packaging method according to claim 9, wherein: the specific steps of S4 are as follows: firstly, inserting the two side wings into the box body at a certain included angle with the horizontal plane and stacking the two side wings above the chair seat, wherein an accommodating groove is formed between the two side wings; and secondly, stacking the upper back plate and the lower back plate in the accommodating groove in sequence, and placing the second part of components in the storage groove on the lower back plate.

Technical Field

The invention relates to the field of seats, in particular to a seat and a packaging method thereof.

Background

The seat is one of furniture varieties and is a seat with a long history. With the development of industrial technology, the chair is not only greatly improved in the aspects of attractive appearance and use comfort, but also greatly changed in the production mode. Modern chairs are mainly produced in a modularized mode, so that the living efficiency of the chair is greatly improved, and the chair generally comprises a base, a chair seat and a chair back. In order to facilitate the transportation of the seat, the three parts of the base, the seat and the chair back of the existing seat can be separated and transported. The base typically includes chassis, armrests, feet, support wheels, and the like. After base, seat support and back of the chair split are piled up in the box that is used for loading, parts such as chassis, handrail, stabilizer blade, supporting wheel still need stack alone to the box in again, and its vanning volume is great relatively, and the length of the back of the chair is longer than seat support and base, just need choose the very long case of length for use just can realize the vanning, and the whole volume of box for loading is great relatively, the transport of the seat of being not convenient for.

Disclosure of Invention

The invention overcomes the defects in the prior art and provides the chair which can be disassembled and stacked on the chair back, and the disassembled components such as the support legs, the support wheels and the like can be accommodated in the chair back or the chair seat so as to be convenient to convey.

Still further, the invention provides a seat packaging method based on the structure, so that the packaging length can be reduced, the space in the packaging box is utilized to the maximum extent, the packaging is compact and reasonable, and the transportation cost is reduced.

The technical scheme of the invention is realized as follows:

a chair comprises a chair back, a chair seat and a connecting support, wherein the chair back comprises a plurality of assembling modules which are spliced and assembled with one another to form the chair back; and at least one of the plurality of assembly modules is provided with a storage groove, the bottom end face of the seat is provided with a storage space, and the storage groove and the storage space can be used for placing other seat parts in the seat to which the seat back and the seat belong.

In a further scheme, the plurality of assembly modules comprise an upper back plate and a lower back plate, a first positioning groove is formed in one of the upper back plate and the lower back plate, a first positioning bulge is formed in the other one of the upper back plate and the lower back plate, the first positioning bulge is inserted into the first positioning groove, so that the upper back plate and the lower back plate are in insertion fit to form a bearing part, the upper back plate and the lower back plate can be relatively fixed through screw connection after the upper back plate and the lower back plate are in insertion fit, and the connecting support and the lower back plate are detachably connected.

The upper backboard and the lower backboard are positioned through the insertion matching of the first positioning groove and the first positioning protrusion to avoid left and right shaking. And after the positioning, the screw connection can be turned without alignment, so that the upper back plate and the lower back plate are relatively fixed.

In a further scheme, an embedded groove is formed in the lower back plate, the connecting support is embedded in the embedded groove and detachably connected with the groove bottom of the embedded groove through screws, the number of the storage grooves is at least two, the at least two storage grooves are respectively formed in two sides of the embedded groove, and the storage grooves extend along the length direction of the lower back plate.

The connecting bracket is embedded in the caulking groove, so that the whole surface of the back of the chair back is smooth and attractive, and the connecting bracket can be clamped in the caulking groove during conveying, thereby reducing the occupied space.

In a further scheme, the plurality of assembly modules further comprise two side wings, and the upper back plate, the lower back plate and the two side wings are integrally formed by adopting a plastic material; the length of each side wing is smaller than that of the bearing piece formed by the splicing and matching of the upper back plate and the lower back plate; the two side wings are respectively positioned at two sides of the bearing part and extend outwards in an inclined way towards the front end plate surface of the bearing part, the side wall of the upper back plate is provided with the second positioning protrusion, the side wings are provided with the second positioning groove, and when the second positioning protrusion is inserted into the second positioning groove, the side wings are positioned at one side of the bearing part and can be connected through screws; and a third positioning bulge is arranged on the side wall of the lower back plate, when the second positioning bulge is inserted into the second positioning groove, the third positioning bulge is also arranged in the second positioning groove, and the groove wall of the second positioning groove presses the third positioning bulge to be always attached to the second positioning bulge.

The waist is wrapped by the side wings at the two sides, so that the sitting and the bearing are more comfortable. And each side wing is detachably connected with the bearing piece, so that the side wings can be conveniently stacked after being disassembled, and the width of the chair back is reduced, thereby reducing the width of the loading box body and facilitating the packing and conveying of the chair. When the bearing piece is disassembled into the upper back plate and the lower back plate to be stacked, the length of the stacked upper back plate and the stacked lower back plate is smaller than that of the bearing piece, and the length of the side wing is smaller than that of the bearing piece, so that the length required by the loading box body can be reduced.

And because last backplate, lower backplate and two flanks all adopt plastics material integrated into one piece, its weight is lighter than in timber or steel plate, is convenient for carry, also is convenient for set up recess and arch on last backplate, lower backplate and two flanks. And the side wall of the upper back plate is provided with a second positioning bulge, and the side wing is provided with a second positioning groove which plays a role in positioning and guiding the installation of the side wing.

Meanwhile, the side wall of the lower back plate is also provided with a third positioning protrusion, when the second positioning protrusion is inserted into the second positioning groove, the groove wall of the second positioning groove presses the third positioning protrusion to be always attached to the second positioning protrusion, and even if a screw connected between the upper back plate and the lower back plate is separated or lost, the upper back plate and the lower back plate cannot be separated.

In a further scheme, the seat support includes cushion and time type frame, the cushion is arranged in on the time type frame, the upper surface of time type frame is equipped with a plurality of intervals side by side and sets up and has elastic first support piece, first support piece cooperation time type frame constitutes the bottom sprag of cushion, just in the frame of time type frame in the below of first support piece is provided with the third connecting piece, be provided with the chassis on the third connecting piece, the chassis with the connection can be dismantled to the link, in the frame of time type frame in the below of first support piece except but form outside the third connecting piece storing space.

Because the cushion is arranged on the back-shaped frame and the bottom of the cushion is supported by the first supporting piece, the cushion does not need to be thick, the thickness of the cushion can be reduced, the material of the cushion is reduced, and the manufacturing cost is saved; and the first supporting piece has elasticity, so that a human body can feel the elasticity when the human body is seated, and the comfort is improved.

In a further scheme, the first supporting piece is a serpentine spring, the number of the serpentine springs is multiple, the serpentine springs are arranged side by side, first connecting pieces are arranged at two ends of each serpentine spring, the first connecting pieces are provided with head ends and tail ends along the length direction, the tail ends of the first connecting pieces are provided with jacks, the ends of the serpentine springs are inserted into the jacks to enable the serpentine springs to be detachably connected with the first connecting pieces, the head ends of the first connecting pieces are bent downwards to form first bent portions, buckling grooves are formed between the first bent portions and the tail ends of the first connecting pieces, and left and right frames of the loop frame are buckled in the buckling grooves in the first connecting pieces at two ends of the serpentine springs respectively.

Because first support piece is serpentine spring, serpentine spring's quantity is a plurality of, and sets up side by side each other between a plurality of serpentine spring, and serpentine spring not only plays the effect that the bottom supported to the cushion, and serpentine spring self has certain elasticity, and when the cushion makes user's cushion, more flexible, more comfortable, user's experience is better in the cooperation.

Meanwhile, the two ends of the serpentine spring are provided with first connecting pieces, the head end of each first connecting piece bends downwards to form a first bending portion, a buckling groove is formed between each first bending portion and the tail end of each first connecting piece, and the left side frame and the right side frame of the profiling frame are buckled in the buckling grooves in the first connecting pieces at the two ends of the serpentine spring. The connector is detachably connected with the clip frame, so that the serpentine spring is detachably connected with the clip frame. The installation of the serpentine spring is convenient, and the replacement of a single serpentine spring is also convenient.

In a further scheme, the device also comprises a plurality of second supporting pieces arranged side by side, wherein the second supporting pieces are perpendicular to the first supporting pieces, and two ends of each second supporting piece are respectively connected with the adjacent first supporting pieces.

The existence of the second supporting piece can avoid the phenomenon that a certain area or certain snake-shaped springs are stressed in a concentrated manner to deviate in the using process, so that the snake-shaped springs are stressed together under the action of the second supporting piece in the using process of a human body; prevent to produce great interval between the serpentine spring, keep interval between the serpentine spring even.

In a further scheme, a connecting area and a storage area are arranged on the bottom end face of the seat, a chassis is detachably arranged on the connecting area, the connecting support is detachably connected with the chassis, and the bottom end face of the seat is sunken in the storage area towards the interior of the seat to form the storage space.

The invention also provides a packaging method of the seat, which comprises the following steps:

s1, preparing a box body for accommodating the seat;

s2, separating the chair back, the chair seat and the connecting bracket from each other, and separating the chair back into an upper back plate, a lower back plate and two side wings which are in an unconnected state; the other chair parts of the chair, except the chair back, the chair seat and the connecting bracket, are divided into three parts, namely a first part assembly, a second part assembly and a third part assembly, wherein the first part assembly comprises a supporting wheel, the second part assembly comprises an armrest supporting surface, and the third part comprises a chassis, supporting legs and a headrest;

s3, placing the chair seat in the box body, and placing the first part of components in the storage space on the chair seat;

s4, stacking the upper back plate, the lower back plate and the two side wings above the seat, and placing the second part of components into a storage groove;

and S5, placing the connecting bracket and the third part assembly in the box body except for the vacant area at the back of the seat and the chair.

The chair back, the chair seat and the connecting support are separated from each other by disassembling the chair, so that the chair back, the chair seat and the connecting support are convenient to stack. And further the chair back is split into a plurality of assembly modules, and the plurality of assembly modules are stacked above the chair seat, so that a box with a long length is not required to be selected, and the placing space is greatly saved.

Meanwhile, other chair parts of the chair, except for the chair back, the chair seat and the connecting bracket, are divided into three parts, namely a first part assembly, a second part assembly and a third part assembly, wherein the first part assembly comprises a supporting wheel, the second part assembly comprises an armrest supporting surface, and the third part comprises a chassis, supporting legs and a headrest. In the subsequent packaging process, the first part of components are arranged in the storage space on the seat, the second part of components are arranged in the storage groove on the assembly module, and the connecting support and the third part of components are arranged in the box body except for the vacant area behind the seat and the chair. It will be readily appreciated that the relatively small and square area of the seat can be used to accommodate smaller volume components of the support wheel. The length of the lower back plate of the assembly module after the chair back is disassembled is relatively longer, and the assembly module can be used for accommodating long strip-shaped components such as armrest supporting surfaces.

Different components are correspondingly placed into a storage space at the bottom end of the chair seat or a storage groove on the chair back according to the shape and the volume. The overlapping stacking among the parts is realized, the whole occupied space after stacking is reduced, and the supporting wheels placed in the storage space in the stacking process cannot be exposed out of the storage space to influence the placement of the chair seat or the chair back. Similarly, the handrail supporting surface in the storage groove on the lower back plate can not be exposed out of the storage groove to influence the arrangement of other assembly modules, the whole arrangement is more compact and flat, the whole occupied space after stacking is further reduced, and the seat can be conveniently packaged.

In a further embodiment, the specific step of S4 is:

firstly, inserting the two side wings into the box body at a certain included angle with the horizontal plane and stacking the two side wings above the chair seat, wherein an accommodating groove is formed between the two side wings;

and secondly, stacking the upper back plate and the lower back plate in the accommodating groove in sequence, and placing the second part of components in the storage groove on the lower back plate.

The two side wings are arranged on the two sides of the upper back plate and the lower back plate, so that the side wings, the upper back plate and the lower back plate are overlapped in the height direction, the overall height after stacking is further reduced, and the height requirement of the box body is reduced. And two flanks are arranged on two sides of the upper back plate and the lower back plate, and two sides of each flank are limited by the back plates and the inner wall of the box body, so that the flanks, the upper back plate and the lower back plate can be prevented from shaking in the conveying process.

The design starting point, the idea and the beneficial effects of the invention adopting the technical scheme are as follows:

because the chair back comprises a plurality of assembling modules, the assembling modules are spliced and assembled with each other to form the chair back. When carrying, not only can stack back of the chair, seat support and linking bridge split, can also stack a plurality of equipment module splits, just need not choose for use the very long case of length, practice thrift by a wide margin and put the space, be convenient for carry the transportation. When the assembly module is required to be used, only a plurality of assembly modules need to be assembled, and convenience is brought to users, and certain assembly achievement feeling can be brought to users.

And the plurality of assembly modules comprise an upper back plate, a lower back plate and two side wings. Go up backplate, lower backplate and two flanks and all adopt plastics material integrated into one piece, its weight is lighter than in timber or steel plate, is convenient for carry, also is convenient for set up recess and arch on last backplate, lower backplate and two flanks. And the side wall of the upper back plate is provided with a second positioning bulge, and the side wing is provided with a second positioning groove which plays a role in positioning and guiding the installation of the side wing.

Meanwhile, the side wall of the lower back plate is also provided with a third positioning protrusion, when the second positioning protrusion is inserted into the second positioning groove, the groove wall of the second positioning groove presses the third positioning protrusion to be always attached to the second positioning protrusion, and even if a screw connected between the upper back plate and the lower back plate is separated or lost, the upper back plate and the lower back plate cannot be separated.

In addition, the storage groove is formed in the lower back plate, the storage space is formed in the bottom end face of the seat, and the storage groove and the storage space can be used for placing other seat parts in the seat to which the seat back and the seat belong. After the seat is disassembled, the components such as the armrests, the supporting legs and the supporting wheels can be placed into the storage groove and the storage space in batches, so that the boxing quantity is greatly reduced, boxes with small volumes can be selected for use, and the seat is convenient to convey.

Drawings

FIG. 1 is a schematic view of the seat and the cover of embodiment 1 after the seat is removed from the cover of the seat back;

FIG. 2 is a schematic view of the structure of a seat in embodiment 1;

fig. 3 is a rear view of the seat in embodiment 1;

FIG. 4 is a schematic structural diagram of a lower back plate;

FIG. 5 is a schematic view of the structure of the seat in another perspective in embodiment 1;

FIG. 6 is a schematic structural view of a flap;

FIG. 7 is a schematic structural diagram of an upper back plate;

FIG. 8 is a schematic structural view of the chair back in a disassembled state;

FIG. 9 is a schematic view of the seat when the frame is removed from the seat;

FIG. 10 is a schematic view and a partially enlarged view of the seat with the cushion removed;

FIG. 11 is a top view of the seat with the cushion removed;

FIG. 12 is a cross-sectional view and a partial enlarged view of A-A in FIG. 11;

fig. 13 is a bottom view of the seat of embodiment 2;

FIG. 14 is a flow chart of a seat packing method;

figure 15 is a schematic view of the seat after packaging.

The figures are numbered: 1-a jacket, 2-a chair back, 3-an upper back plate, 4-a lower back plate, 5-a first positioning groove, 6-a first positioning protrusion, 7-a mounting groove, 8-a mounting boss, 9-a side wing, 10-a second positioning protrusion, 11-a third positioning protrusion, 12-a second positioning groove, 13-a fourth positioning protrusion, 14-a third positioning groove, 15-a connecting bracket, 16-a caulking groove, 17-a chair seat, 18-a bearing part, 19-a cushion, 20-a frame, 21-a containing cavity, 22-a first supporting part, 22a serpentine spring, 23-a first connecting part, 24-a first bending part, 25-a buckling groove, 26-a jack, 27-a second supporting part, 28-a second bending part, 29-second connection, 30-third connection, 31-storage space, 31 a-storage area, 32-storage trough, 33-connection area.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

The specific embodiment of the invention is as follows:

example 1: as shown in fig. 1-12, the present invention provides a chair comprising a cover 1, a base, a seat 17, a back 2 and a connecting bracket. Wherein the outer sleeve 1 is sleeved outside the chair back 2, and the outer sleeve 1 can be separated from the chair back main body 2.

In this scheme back of the chair 2 includes a plurality of equipment modules, and back of the chair 2 comprises the mutual concatenation equipment of these a plurality of equipment modules. When carrying, can stack a plurality of equipment module splits, practice thrift by a wide margin and put the space, be convenient for carry the transportation. When the assembly module is required to be used, only a plurality of assembly modules need to be assembled, and convenience is brought to users, and certain assembly achievement feeling can be brought to users.

Specifically, referring to fig. 4, 7 and 8, the plurality of assembly modules include an upper back plate 3 and a lower back plate 4, wherein the bottom end of the upper back plate 3 is provided with a first positioning groove 5, and the top end of the lower back plate 4 is provided with a first positioning protrusion 6 matched with the first positioning groove 5. The upper back plate 3 and the lower back plate 4 can be spliced with each other, so that the first positioning protrusion 6 is inserted into the first positioning groove 5. And the upper back plate 3 and the lower back plate 4 can be relatively fixed through screw connection after the upper back plate 3 and the lower back plate 4 are spliced and matched. The upper back plate 3 and the lower back plate 4 are spliced with each other to form the combined type shoe sole.

Preferably, as shown in fig. 7, the two side walls of the first positioning groove 5 in the present embodiment both extend outward along the direction from the groove bottom to the groove opening, and both the two side walls of the first positioning groove 5 are arc-shaped surfaces. Because the both sides cell wall of first positioning groove 5 all outwards extends along tank bottom to notch direction slope, at the in-process of pegging graft, can play certain guide effect through the cell wall of first positioning groove 5, even first positioning groove 5 does not align completely with first positioning bulge 6 when pegging graft, also can slide to the tank bottom through the both sides cell wall of first positioning groove 5 and peg graft the cooperation. And because the two side groove walls of the first positioning groove 5 are arc-shaped surfaces, the guide is facilitated, and the appearance is more attractive.

Meanwhile, the upper back plate 3 and the lower back plate 4 can be connected through screws after being spliced and matched conveniently. As shown in fig. 4, the first positioning protrusion 6 of the lower back plate 4 is provided with a mounting groove 7. As shown in fig. 7, the bottom of the first groove at the bottom of the upper back plate 3 is provided with a mounting boss 8. When first location arch 6 is inserted and is spliced and assembled in first location groove 5, installation boss 8 is inserted in installation groove 7, and accessible screwed connection makes between installation boss 8 and the installation groove 7 go up backplate 3 and keep relatively fixed with backplate 4 down. The upper back plate 3 and the lower back plate 4 are overlapped due to the need of screwing. When the first positioning bulge 6 is inserted into the first positioning groove 5, the mounting boss 8 is inserted into the mounting groove 7, so that the mounting position of the screw cannot protrude out of the back plate, and the overall appearance is smoother.

It should be noted that, although in the present embodiment, the first positioning groove 5 is disposed at the bottom end of the upper back plate 3, and the first positioning protrusion 6 is disposed at the top end of the lower back plate 4. It is also possible to arrange the first positioning recess 5 at the top end of the lower back plate 4 and the first positioning protrusion 6 at the bottom end of the upper back plate 3.

It should be noted that, although in this embodiment, the mounting groove 7 is disposed on the first positioning protrusion 6 of the lower back plate 4, and the mounting boss 8 is disposed at the bottom of the first groove at the bottom end of the upper back plate 3. However, it is also feasible that the mounting groove 7 is disposed at the bottom of the first groove at the bottom end of the upper back plate 3, and the mounting boss 8 is disposed on the first positioning protrusion 6 of the lower back plate 4.

In addition, the plurality of assembly modules in the present embodiment further includes two side wings 9, as shown in fig. 5, the two side wings 9 are respectively located at two sides of the bearing member 18 and extend obliquely outward toward the front end plate surface of the bearing member 18, and each side wing 9 is detachably connected to the bearing member 18. The waist is wrapped by the side wings 9 at the two sides, so that the user can sit more comfortably.

As a specific connection mode, in the present embodiment, the bearing member 18 is provided with a second positioning protrusion 10. And the side wall of the side wing 9 is provided with a second positioning groove 12. When the side wing 9 is jointed with the side wall of one side of the bearing part 18, the second positioning protrusion 10 is inserted into the second positioning groove 12, and the side wing 9 is connected with one side of the bearing part 18 through a screw.

Preferably, in this embodiment, the second positioning protrusion 10 is disposed on the sidewall of the upper back plate 3 in the bearing member 18. And a third positioning protrusion 11 is arranged on the side wall of the lower back plate 4. When the second positioning protrusion 10 is inserted into the second positioning groove 12, the third positioning protrusion 11 is also disposed in the second positioning groove 12, and the groove wall of the second positioning groove 12 presses the third positioning protrusion 11 to be always tightly attached to the second positioning protrusion 10. Because the side wall of the upper back plate 3 is provided with the second positioning protrusion 10, the side wall of the lower back plate 4 is provided with the third positioning protrusion 11, when the second positioning protrusion 10 is inserted into the second positioning groove 12, the groove wall of the second positioning groove 12 presses the third positioning protrusion 11 to be always tightly attached to the second positioning protrusion 10, even if the screw connected between the upper back plate 3 and the lower back plate 4 is separated or lost, the upper back plate 3 and the lower back plate 4 cannot be separated.

But to facilitate the screw connection between the lateral wings 9 and the bearing elements 18. As shown in fig. 5 and 6, the side wall of the leaning piece 18 is provided with a fourth positioning protrusion 13, and the side wall of the side wing 9 is provided with a third positioning groove 14. When the side wing 9 is placed on one side wall of the bearing part 18, the fourth positioning protrusion 13 is inserted into the third positioning groove 14, and the fourth positioning protrusion 13 is connected with the side wing 9 through a screw. Because the fourth positioning protrusion 13 is connected with the side wing 9 through the screw, not only the position where the screw is arranged is positioned, but also the length requirement of the screw is reduced because the fourth positioning protrusion 13 is positioned inside the side wing 9.

At the same time, the length of the side wings 9 is less than the length of the bearing members 18. It will be understood that when the support member 18 is disassembled into the upper back plate 3 and the lower back plate 4, which are stacked and placed in the box body for packaging, the length of the stacked upper back plate and lower back plate is less than the length of the support member 18, and the length of the side wing 9 is less than the length of the support member 18, so as to reduce the length required for loading the box body.

In the scheme, the upper back plate 3, the lower back plate 4 and the two side wings 9 are all formed by plastic blow molding. The weight is relatively light, and the taking and conveying are convenient. And after plastic blow molding is adopted, the arrangement of the grooves and the bulges on each part is also convenient.

In the scheme, the chair back 2 is connected with the chair seat 17 through the connecting support 15. Specifically, one end of the connecting support 17 is detachably connected with one assembling module in the chair back 2, and the other end of the connecting support 17 is detachably connected with the chair seat 17. More specifically, as shown in fig. 4, the lower back plate 4 in this embodiment is provided with an insertion groove 16, and the connecting bracket 15 is inserted into the insertion groove 16 and connected to the bottom of the insertion groove 16 by a screw. The connecting bracket 15 is embedded in the embedded groove 16, so that the whole surface of the back of the chair back is flat and attractive, and the connecting bracket 15 can be clamped in the embedded groove 16 during conveying, so that the occupied space is reduced.

And the seat 17 includes a cushion 19 and a return frame 20. The cushion 19 is made of a flexible material such as sponge, and the frame 20 is made of a rigid material such as metal, wherein the cushion 19 is placed on the frame 20. And in this scheme the upper surface of returning the type frame 20 is equipped with a plurality of intervals side by side and sets up and have elastic first support piece 22, and first support piece 22 cooperates back type frame 20 in order to constitute the bottom sprag of cushion 19. Meanwhile, a third connecting piece 30 is arranged below the first supporting piece 22 in the frame of the clip frame 20. The base comprises a chassis which is mounted on the third connecting part 30, and the bottom end of the chassis is provided with support legs and support wheels for supporting the chair seat 17 and the chair back 2. The two sides of the chassis are provided with handrail frames, and the upper ends of the handrail frames are provided with handrail supporting surfaces. The other end of the connecting support frame 17 is connected with the chassis through a screw, so that the other end of the connecting support frame 17 is detachably connected with the seat 17.

In order to facilitate the assembly and disassembly of the seat cushion 19, as shown in fig. 9, an accommodating cavity 21 is provided on the bottom end surface of the seat cushion 19, and the clip 20 is disposed in the accommodating cavity 21. And the clip 20 can be taken out from the containing cavity 21, thereby facilitating the assembly, disassembly and cleaning of the cushion 19. Because the cushion 19 is arranged on the frame 20 and the bottom of the cushion 19 is supported by the first supporting part 22, the cushion 19 does not need to be thick, the thickness of the cushion 19 can be reduced, the material of the cushion 19 is reduced, and the manufacturing cost is saved.

In this scheme, first support piece 22 is serpentine spring 22a, and serpentine spring 22 a's quantity is a plurality of, and a plurality of serpentine spring 22a set up side by side, and every serpentine spring 22a all extends along the width direction who returns type frame 20. Meanwhile, both ends of each serpentine spring 22a are connected to the left and right frames of the clip frame 20.

Specifically, both ends of the serpentine spring 22a are provided with first connection pieces 23. As shown in fig. 12, the first connecting member 23 has a head end and a tail end along its length direction, the tail end of the first connecting member 23 is connected to the serpentine spring 22a, and the head end of the first connecting member 23 is bent downward to form a first bent portion 24. A catching groove 25 is formed between the first bent portion 24 and the rear end of the first connector 23. When the serpentine spring 22a is to be installed on the loop frame 20, the serpentine spring 22a is only required to be transversely placed on the loop frame 20, and the left and right frames of the loop frame 20 are respectively buckled in the buckling grooves 25 of the first connecting pieces 23 at the two ends of the serpentine spring 22a to achieve connection. Thereby allowing the serpentine spring 22a to be detachably coupled to the frame 20. I.e. to facilitate the installation of the serpentine springs 22a, as well as the replacement of the single serpentine spring 22 a. And it is easy to understand that the clip frame 20 is disposed in the accommodating cavity 21 on the bottom end surface of the seat cushion 19, the upper end surfaces of the serpentine spring 22a and the first connecting member 23 will abut against the seat cushion 19 to form a limit, and there is no need to worry about that the serpentine spring 22a will be separated from the clip frame 20 during the sitting process. When the frame 20 is taken out from the containing cavity 21, the serpentine spring 22a can be directly taken down, and the disassembly is very convenient.

As a specific connection manner of the serpentine spring 22a and the first connection member 23, as shown in fig. 12, in the present embodiment, a jack 26 is disposed at the tail end of the first connection member 23, and the end of the serpentine spring 22a is inserted into the jack 26, so that the serpentine spring 22a is detachably connected to the first connection member 23. This connection facilitates the assembly of the serpentine spring 22a with the first connection member 23, and also allows to retain the first connection member 23 when replacing the serpentine spring 22a, saving material.

In this embodiment, a plurality of second supporting members 27 are disposed in the frame of the frame 20, the second supporting members 27 are disposed side by side, the second supporting members 27 are perpendicular to the serpentine springs 22a (i.e., the first supporting members 22), and two ends of each second supporting member 27 are connected to the adjacent serpentine springs 22 a. Preferably, as shown in fig. 10, both ends of the second supporting member 27 are bent toward one side of the second supporting member 27 to form a second bent portion 28. The second bent portion 28 is formed by bending both ends of the second supporting member 27 to one side of the supporting member to form a special-shaped member, so that the structural strength of the second supporting member 27 is improved, and the supporting area of the second supporting member 27 at the bottom end of the serpentine spring 22a is increased.

And in order to allow the two ends of the second support 27 to be connected to the adjacent serpentine springs 22a, respectively. In this embodiment, the serpentine spring 22a is provided with a second connecting member 29, and the second supporting member 27 extends through the second connecting member 29 to be fixed relative to the serpentine spring 22 a. This configuration facilitates both the fixing of the assembly between the second support 27 and the serpentine spring 22a and the disassembly thereof.

When a user sits on the seat cushion 19, the seat cushion 19 collapses to impart a downward force on the serpentine spring 22a and, in conjunction with the downward force imparted on the serpentine spring 22a, drives the serpentine spring 22a toward an outward bias. The existence of the second supporting piece 27 not only improves the structural supporting strength, but also can avoid the phenomenon that a certain area or a plurality of serpentine springs 22a are intensively stressed to deviate in the using process, so that the serpentine springs 22a are stressed together under the action of the second supporting piece 27 in the using process of a human body, larger intervals among the serpentine springs 22a are prevented, and the intervals among the serpentine springs 22a are kept uniform.

As shown in fig. 3 and 4, the storage groove 32 is provided on the back of the lower back plate 4 in this embodiment. Specifically, the number of the storage grooves 32 is two, and the two storage grooves 32 are respectively provided on both sides of the insertion groove 16. And each storage groove extends along the length direction of the lower back plate.

Meanwhile, as shown in fig. 9, the frame of the frame 20 is a storage space 31 below the first support 22 for placing other seat components of the seat except for the third connecting member 30.

After the seat is disassembled, small parts such as the support legs and the support wheels can be placed in the storage space 31 to be overlapped and stacked. And the components such as the handrail support plate and the like can be placed in the storage groove 32 without being separately stacked, so that the packing amount is reduced, the occupied space is reduced, and the transportation of the seat is facilitated.

Of course, in the case where the structural strength of the seat back 2 is ensured and the width of each storage groove 32 is wide enough to accommodate the components to be placed, the number of the storage grooves 32 may be three or four or five, etc.

Based on the seat, as shown in fig. 14, the present embodiment also provides a method for packaging a seat, which includes the following steps:

s1, preparing a box body for accommodating the seat;

s2, separating the chair back, the chair seat and the connecting bracket from each other, and separating the chair back into a plurality of assembly modules; the other chair parts of the chair, except the chair back, the chair seat and the connecting bracket, are divided into three parts, namely a first part assembly, a second part assembly and a third part assembly, wherein the first part assembly comprises a supporting wheel, the second part assembly comprises an armrest supporting surface, and the third part comprises a chassis, supporting legs and a headrest;

s3, placing the chair seat in the box body, and placing the first part of components in the storage space on the chair seat;

s4, stacking a plurality of assembly modules above the seat, and placing the second part assembly in a storage groove on the assembly modules;

and S5, placing the connecting bracket and the third part assembly in the box body except for the vacant area at the back of the seat and the chair.

Specifically, step S4 is further divided into the following steps:

firstly, inserting the two side wings into the box body at a certain included angle with the horizontal plane and stacking the two side wings above the chair seat, wherein an accommodating groove is formed between the two side wings;

and secondly, stacking the upper back plate and the lower back plate in the accommodating groove in sequence, and placing the second part of components in the storage groove on the lower back plate.

According to the above-mentioned packaging method, when the seat is packaged, the seat is first disassembled so that the seat back 2, the seat 17 and the connecting bracket 15 are separated from each other, and at this time, the base is also disassembled so that the seat components such as the chassis, the legs, the supporting wheels, the armrest supporting surface and the like are disassembled and the seat components are divided into the first part assembly, the second part assembly and the third part assembly. The first part assembly comprises support wheels, the second part assembly comprises an armrest support surface, and the third part assembly comprises a chassis, support legs and a headrest.

Simultaneously, the chair back 2 is split into a plurality of assembly modules, namely the chair back 2 is split into the upper back plate 3, the lower back plate 4 and the two side wings 9, so that the upper back plate 3, the lower back plate 4 and the two side wings 9 are in an unconnected state. The seat 17 is then placed in a prepared box, compared to the back 2. In order to be able to place the first partial component in the storage space 31 on the seat 17. The storage space 31 on the seat 17 of the first part of the components can be placed in the box, and then the seat 17 is placed in the box, so that the first part of the components covers the storage space 31 to complete the overlapping placement. Alternatively, the bottom end of the seat 17 may be swung upwardly into the box and the first part of the assembly placed into the storage space 31.

Then, the two side wings 9 are inserted into the box body at a certain included angle with the horizontal plane and stacked above the seat 17 to form an accommodating groove between the two side wings 9. The two side wings 9 form an included angle with the horizontal plane and are inserted into the box body, the side wings 9 can be vertically placed into the box body or obliquely placed into the box body, and the side wings 9 can lean against the inner wall of the box body after being placed into the box body. The upper back plate 3 and the lower back plate 4 are then stacked in the receiving slot in sequence, and the second sub-assembly is also placed in the storage slot 32 of the lower back plate 4 in the process. Similar to the seat 17, the second part of the assembly can be placed on the seat 17 and then covered by the lower back plate 4. Alternatively, the lower back plate 4 may be placed into the box with its back facing upward, and then the second sub-assembly may be placed into the storage tank 32.

And finally, placing the third part of components in the vacant area in the box body to finish packaging.

The packaged case and seat are shown in fig. 15.

Therefore, in the packaging method, the first part of the components is placed in the storage space 31, and the second part of the components is placed in the storage groove 32. Because the seat 17 is relatively small and square in area and can be used to accommodate smaller volume components of the support wheel. The length of the lower back plate 4 of the assembled module after the chair back 2 is disassembled is relatively longer, and the assembled module can be used for accommodating long strip-shaped components such as armrest supporting surfaces.

Different components are correspondingly placed in the storage space 31 or the storage groove 32 according to the shape and the volume. The overlapping and stacking among the components are realized, the overall occupied space after stacking is reduced, and the supporting wheels placed in the storage space 31 in the stacking process cannot be exposed out of the storage space to influence the placement of the seat 17 or the chair back 2. Similarly, the armrest supporting surface in the storage groove 32 on the lower back plate 4 is not exposed outside the storage groove 32 to affect the placement of other assembly modules, so that the overall placement is more compact and flat, the overall occupied space after stacking is further reduced, and the seat can be conveniently packaged.

Meanwhile, the two side wings are arranged on the two sides of the upper back plate and the lower back plate, so that the side wings 9 are overlapped with the upper back plate 3 and the lower back plate 4 in the height direction, the overall height after stacking is further reduced, and the height requirement of the box body is reduced. And two flanks 9 are arranged at two sides of the upper back plate 3 and the lower back plate 4, and two sides of each flank 9 are limited by the back plates and the inner wall of the box body, so that the flanks 9, the upper back plate 3 and the lower back plate 4 can be prevented from shaking in the conveying process.

It should be noted here that, under the condition that it is ensured that the side wings 9 and the upper back plate 3 and the lower back plate 4 are overlapped in the height direction, the upper back plate 3 and the lower back plate 4 may be stacked on the seat 17 in sequence, so that slots are formed between the two sides of the upper back plate 3 and the lower back plate 4 and the inner wall of the box body, and then the two side wings 9 are inserted into the two slots to be overlapped and placed, and are kept relatively stable. Or the lower back plate 4 is firstly arranged on the chair seat 17, then the two side wings 9 are arranged on the lower back plate 4, the two side wings 9 lean against the inner walls of the two sides of the box body respectively, and finally the upper back plate 3 is arranged between the two side wings.

Example 2: as shown in fig. 13, the main difference between this embodiment and the chair in embodiment 1 is that in this embodiment, the seat 17 is made of an integral blow molding, and a connecting area 33 and a storage area 31a are provided on the bottom end surface of the seat 17. The base plate for connecting the connecting bracket 15 is detachably arranged on the connecting area 33 by means of screws. And the bottom end surface of the seat 17 is recessed toward the inside of the seat at the storage area 31a to form a storage space 31 for placing other seat components in the seat.

The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.