Seat back facilitating packaging

Abstract

This application discloses a packaging-friendly seat backrest, comprising an upper backrest and a lower backrest that are joined together vertically. The upper and lower backrests are detachably connected by a quick-release structure, which includes several sets of connectors and insertion holes. The connectors are located in one of the upper and lower backrests, and the insertion holes are located in the other. The connectors and insertion holes engage to form a single unit with the upper and lower backrests. This packaging-friendly seat backrest, by adopting a split structure with detachable upper and lower backrests, allows for separate assembly and stacking for packaging and transportation, effectively saving packaging space and reducing packaging and transportation costs. Furthermore, the connection between the upper and lower backrests via connectors and insertion holes is simple in structure and facilitates easy assembly, allowing users to assemble the seat upon receipt.

Description

Technical Field

[0001] This utility model relates to the field of seating technology, specifically to a seat back that is easy to package. Background Technology

[0002] Chairs are common furniture items used to support the human body while sitting. With the development of modern industrial technology, chairs have not only seen significant improvements in aesthetics and comfort, but their production methods have also undergone tremendous changes. Modern chairs primarily employ modular production, manufacturing the seat, base, and backrest separately, thus greatly improving production efficiency. Furthermore, in the packaging and transportation process, the base, seat, and backrest can be transported separately, saving packaging space and effectively reducing packaging and transportation costs.

[0003] However, as an important component supporting the human back, the chair back takes up more vertical space than the seat and base, requiring a very long box for packing. A large packing volume results in a relatively large space occupation, leaving room for optimization in packaging space.

[0004] Therefore, how to further disassemble the chair back and save packaging space in the chair back area has become the main problem that needs to be solved. Summary of the Invention

[0005] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a seat back that is easy to package. By setting the seat back as a split structure, the upper back and the lower back can be detached, that is, the upper back and the lower back can be separated and stacked together for packaging and transportation, which effectively saves packaging space and reduces packaging and transportation costs. Furthermore, the upper back and the lower back are connected by a plug-in connector and a plug hole, which is simple in structure and makes the assembly operation between the upper back and the lower back easy, so that users can assemble the seat after receiving the goods.

[0006] The effect of this utility model is achieved as follows: This application provides a packaging-friendly seat back, including an upper back and a lower back that are spliced ​​together. The upper back and the lower back are detachably connected by a quick-release structure. The quick-release structure includes several sets of connectors and connector holes. The connectors are located in one of the upper back and the lower back, and the connector holes are located in the other of the upper back and the lower back. The connectors and connector holes are inserted and engaged, so that the upper back and the lower back are connected as a whole.

[0007] Furthermore, several tubular mounting tubes are connected to the upper side of the lower backrest, with the hollow portion of the mounting tubes forming insertion holes. Correspondingly, several columnar insertion components are provided on the lower side of the upper backrest. This makes the backrest assembly operation simple, the structure simple, and the connection strength high.

[0008] Furthermore, the upper back panel features a split structure, comprising a front cushion and a rear panel. The cushion is detachably connected to the rear panel, and a connector is clamped between the cushion and the rear panel. This not only enhances the connection strength between the connector and the upper back panel but also makes the overall structure of the upper back panel more compact and lighter in appearance.

[0009] Furthermore, several connectors are connected by horizontally arranged connecting plates, which are detachably attached to the rear plate. This simplifies the assembly process of the upper back panel.

[0010] Furthermore, the rear plate has several clearance holes formed by hollowing out the space, and these clearance holes are configured to accommodate clearance connectors. This allows the connecting plate and the rear plate to fit together more tightly, resulting in a lighter structure and easier installation and positioning.

[0011] Furthermore, the lower back panel features a split structure, comprising a front padded section and a rear cover. The padded section is detachably connected to the cover, and the mounting tube is clamped between the padded section and the cover. This not only enhances the connection strength between the mounting tube and the lower back panel but also makes the overall structure of the lower back panel more compact and lighter in appearance.

[0012] Furthermore, several mounting tubes are connected by horizontally arranged mounting plates, which are detachably connected to the cover plate. This simplifies the assembly process of the lower back.

[0013] Furthermore, the cover plate has several through holes formed by hollowing out the design, which are configured to avoid the mounting tube. This allows the mounting plate and the cover plate to fit together more tightly, resulting in a lighter structure and simplifying the installation and positioning process.

[0014] Furthermore, the side wall of the mounting tube has several hollowed-out mounting holes, and the connector has corresponding threaded holes. When the connector is inserted into the mounting tube, the two are connected and fixed by screws. The screws pass through the mounting holes and engage with the threaded holes. This further enhances the connection strength between the upper and lower back sections, resulting in greater stability and easier installation and disassembly.

[0015] Furthermore, a sleeve-like nest is detachably connected inside the mounting tube, and the nest is configured to fill the gap between the connector and the mounting tube. This makes the fit between the connector and the mounting tube tighter, further improving the connection strength between the upper and lower backrests and resulting in better backrest stability.

[0016] Furthermore, the bottom of the upper back panel features a downward-convex arc-shaped structure, while the top of the lower back panel is concave to form an arc-shaped positioning surface, with the bottom of the upper back panel fitting snugly against this positioning surface. This further enhances the connection strength between the two components and improves the ease of installation and positioning.

[0017] The seat back provided in this application is designed as a split structure, with the upper and lower back sections being detachable. This means that the upper and lower back sections can be separated and stacked together for packaging and transportation, effectively saving packaging space and reducing packaging and transportation costs. Furthermore, the upper and lower back sections are connected by a plug-in connector and plug holes, resulting in a simple structure and easy assembly of the upper and lower back sections, making it convenient for users to assemble the seat after receiving the goods. Attached Figure Description

[0018] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 A three-dimensional structural diagram of the seat provided in an embodiment of this application; Figure 2 A three-dimensional structural diagram of a seat back provided in an embodiment of this application; Figure 3 This is a schematic diagram of the connection structure between the upper back and lower back provided in an embodiment of this application; Figure 4 A schematic diagram of the connection structure between the cushion and the back panel provided in an embodiment of this application; Figure 5 This is a schematic diagram of the connection structure between the cushion portion and the cover plate provided in an embodiment of this application; Figure 6 A schematic diagram of the connection structure between the nested and mounting tubes provided in the embodiments of this application; Figure 7 A cross-sectional structural diagram of a seat back provided in an embodiment of this application; Figure 8 This is a schematic diagram of the connection structure between the headrest and the upper back provided in an embodiment of this application.

[0019] The labels on the attached drawings are as follows: 1-upper back, 110-cushion, 120-back plate, 121-avoidance hole, 2-lower back, 201-positioning surface, 210-pad part, 220-cover plate, 221-through hole, 3-plug-in piece, 301-threaded hole, 4-mounting tube, 401-plug-in hole, 402-mounting hole, 403-slot, 5-connecting plate, 6-mounting plate, 7-nesting, 710-inverted, 8-headrest. Detailed Implementation

[0020] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0021] Please refer to the attached document. Figure 1-8 This application provides a packaging-friendly seat back, including an upper back 1 and a lower back 2 that are spliced ​​together. The upper back 1 and the lower back 2 are detachably connected by a quick-release structure. The quick-release structure includes several sets of connectors 3 and connector holes 401. The connectors 3 are disposed in one of the upper back 1 and the lower back 2, and the connector holes 401 are opened in the other of the upper back 1 and the lower back 2. The connectors 3 and the connector holes 401 are inserted and engaged, so that the upper back 1 and the lower back 2 are connected as a whole.

[0022] In this embodiment, by setting the seat back as a split structure, the upper back 1 and the lower back 2 are detachably set, that is, the upper back 1 and the lower back 2 can be separated and stacked together for packaging and transportation, which effectively saves packaging space and reduces packaging and transportation costs. Furthermore, the upper back 1 and the lower back 2 are connected by a plug-in connector 3 and a plug-in hole 401, which is simple in structure and makes the assembly operation between the upper back 1 and the lower back 2 easy, making it convenient for users to assemble the seat after receiving the goods.

[0023] Please refer to the attached document. Figure 3 In some embodiments of this application, a plurality of tubular mounting tubes 4 are connected to the upper side of the lower back 2, and the hollow portion of the mounting tube 4 forms a plug hole 401. A plurality of columnar plugs 3 are correspondingly provided on the lower side of the upper back 1.

[0024] In this embodiment, when assembling the seat back, first lift the upper backrest 1 upwards so that the connector 3 on the lower side of the upper backrest 1 aligns with the mounting tube 4 on the lower backrest 2. Then, press the upper backrest 1 downwards, and insert the connector 3 into the insertion hole 401. This allows the upper backrest 1 and the lower backrest 2 to be combined into a single unit, making the operation simple. Preferably, the connector 3 is made of steel bars, which has high strength. It is fixed by inserting and connecting the round tubular mounting tube 4 and the connector 3, resulting in a simple structure and high connection strength.

[0025] Of course, in other embodiments of this application, the mounting tube 4 may also be disposed on the lower side of the upper back 1, and the connector 3 may also be disposed on the upper side of the lower back 2.

[0026] Preferably, the upper back 1 is provided with two left and right plugs 3, and the lower back 2 is provided with two mounting tubes 4, so as to ensure strong connection stability between the upper back 1 and the lower back 2.

[0027] Please refer to the attached document. Figure 5In some embodiments of this application, the upper back panel 1 has a split structure, including a front cushion portion 110 and a rear panel 120. The cushion portion 110 is detachably connected to the rear panel 120, and the connector 3 is clamped between the cushion portion 110 and the rear panel 120. This not only increases the connection strength between the connector 3 and the upper back panel 1, but also hides the connection structure between the connector 3 and the upper back panel 1 between the cushion portion 110 and the rear panel 120, making the overall structure of the upper back panel 1 more compact and its appearance lighter.

[0028] Please refer to the attached document. Figure 5 In some embodiments of this application, several plug-in components 3 are connected by a horizontally arranged connecting plate 5, which is detachably connected to the rear plate 120.

[0029] In this embodiment, several connectors 3 are installed together on the back panel 120 via a connecting plate 5, making the assembly of the upper back panel 1 easier. The cushion 110 is made of a flexible material to support the user's back, while the back panel 120 is made of a rigid wooden board. The connecting plate 5 connects to the relatively rigid back panel 120, ensuring good connection strength and stability between the connectors 3 and the upper back panel 1.

[0030] Preferably, the connecting plate 5 and the plug-in component 3 are fixed together by welding to ensure connection strength. The connecting plate 5 and the rear plate 120 are fixed together by screws, which not only facilitates installation and removal but also provides high connection strength.

[0031] Please refer to the attached document. Figure 5 In some embodiments of this application, a plurality of clearance holes 121 are formed on the rear plate 120, and the clearance holes 121 are configured to avoid the connector 3.

[0032] In this embodiment, the connector 3 is fixed to the rear end of the connecting plate 5. By hollowing out the clearance hole 121 on the rear plate 120, the connector 3 passes through the clearance hole 121 when the connecting plate 5 and the rear plate 120 are connected and fixed, allowing for a tighter fit between the connecting plate 5 and the rear plate 120, resulting in a lighter structure. Furthermore, when installing the connecting plate 5, the connector 3 engages with the clearance hole 121, providing initial positioning of the connector 3 and the connecting plate 5, making the installation and positioning operation simpler.

[0033] Please refer to the attached document. Figure 4In some embodiments of this application, the lower back panel 2 is a split structure, including a front padding portion 210 and a rear cover plate 220. The padding portion 210 is detachably connected to the cover plate 220, and the mounting tube 4 is clamped between the padding portion 210 and the cover plate 220. This not only increases the connection strength between the mounting tube 4 and the lower back panel 2, but also hides the connection structure between the mounting tube 4 and the lower back panel 2 between the padding portion 210 and the cover plate 220, making the overall structure of the lower back panel 2 more compact and its appearance lighter.

[0034] Please refer to the attached document. Figure 4 In some embodiments of this application, a plurality of mounting pipes 4 are connected by a horizontally arranged mounting plate 6, which is detachably connected to the cover plate 220.

[0035] In this embodiment, several mounting tubes 4 are mounted together on the cover plate 220 via mounting plates 6, making the assembly of the lower back 1 easier. The soft padding part 210 is made of a flexible material to support the user's back, while the cover plate 220 is made of a hard wooden board. The mounting plate 6 is connected to the harder cover plate 220, ensuring good connection strength and stability between the mounting tubes 4 and the lower back 2.

[0036] Preferably, the connecting plate 5 and the plug-in component 3 are fixed together by welding to ensure connection strength. The connecting plate 5 and the rear plate 120 are fixed together by screws, which not only facilitates installation and removal but also provides high connection strength.

[0037] Please refer to the attached document. Figure 4 In some embodiments of this application, the cover plate 220 is perforated to form a plurality of through holes 221, and the through holes 221 are configured to avoid the mounting tube 4.

[0038] In this embodiment, the mounting tube 4 is fixed to the rear end of the mounting plate 6. By creating a through hole 221 in the cover plate 220, the mounting tube 4 passes through the through hole 221 when the mounting plate 6 and the cover plate 220 are connected and fixed, allowing for a tighter fit between the mounting plate 6 and the cover plate 220, resulting in a lighter structure. Furthermore, when setting the mounting plate 6, the mounting tube 4 is inserted into the through hole 221, providing initial positioning for both the mounting tube 4 and the mounting plate 6, making the installation and positioning operation simpler.

[0039] The connection structure between the connector 3 and the upper back 1 is similar to the connection structure between the mounting tube 4 and the lower back 2, which makes the upper back 1 and the lower back 2 precisely aligned, and the front and rear ends of the two can be connected into a complete plane after assembly.

[0040] Please refer to the attached document. Figure 7In some embodiments of this application, a plurality of mounting holes 402 are formed on the side wall of the mounting tube 4, and a plurality of threaded holes 301 are correspondingly provided on the plug-in 3. When the plug-in 3 is inserted into the mounting tube 4, the two are connected and fixed by means of screw connection. The screw passes through the mounting hole 402 and engages with the threaded hole 301.

[0041] In this embodiment, after the connector 3 is inserted into the mounting tube 4, the two are further fixed by screw connection, so that the connector 3 and the mounting tube 4 are relatively fixed, which further improves the connection strength between the upper back 1 and the lower back 2, making the stability stronger, and the installation and disassembly operation is relatively simple.

[0042] Please refer to the attached document. Figure 6 In some embodiments of this application, a sleeve-shaped nest 7 may also be detachably connected inside the mounting tube 4, the nest 7 being configured to fill the gap between the plug-in 3 and the mounting tube 4.

[0043] In this embodiment, by setting the nest 7, the gap between the connector 3 and the mounting tube 4 is filled by the nest 7, thereby making the fit between the connector 3 and the mounting tube 4 tighter, further improving the connection strength between the upper backrest 1 and the lower backrest 2, and improving the stability of the backrest. Furthermore, the nest 7 is detachably set on the mounting tube 4, meaning that for backrests of different specifications, manufacturers can design nests of appropriate sizes according to the dimensions of the mounting tube 4 and the connector 3 used in the backrest, resulting in better practicality.

[0044] Preferably, the nest 7 is detachably connected to the mounting tube 4 via an inverted buckle structure. An inverted buckle 710 capable of elastic deformation is formed on the side wall of the nest 7. A slot 403 is provided on the side wall of the mounting tube 4. When the nest 7 is inserted into the mounting tube 4, the inverted buckle 710 is inserted into the slot 403 and abuts against the side wall of the slot 403, which makes the connection between the nest 7 and the mounting tube 4 strong and convenient for loading and unloading.

[0045] Please refer to the attached document. Figure 3-4 In some embodiments of this application, the bottom of the upper back 1 is a downwardly protruding arc-shaped structure, the top of the lower back 2 is concave downward to form an arc-shaped positioning surface 201, and the bottom of the upper back 1 is attached to the positioning surface 201.

[0046] In this embodiment, by providing a positioning surface 201 on the lower back 2 that fits the shape of the upper back 1, the contact area between the upper back 1 and the lower back 2 is increased, further enhancing the connection strength between the two; and when the upper back 1 fits the mounting surface 201, the connector 3 is precisely inserted into the mounting tube 4, further improving the ease of installation and positioning operations.

[0047] Please refer to the appendix. Figure 8The seat backrest, which is easy to package, also includes a headrest 8, which is detachably connected to the upper backrest 1, further saving on the packaging and transportation costs of the seat backrest. The headrest 8 and the upper backrest 1 are also connected and fixed by the aforementioned quick-release structure, which will not be described in detail in this embodiment.

[0048] It should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" used above to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means three or more.

[0049] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A seat back that is easy to package, characterized in that, The device includes an upper back (1) and a lower back (2) that are spliced ​​together. The upper back (1) and the lower back (2) are detachably connected by a quick-connect structure. The quick-connect structure includes several sets of connectors (3) and connector holes (401). The connectors (3) are located in one of the upper back (1) and the lower back (2), and the connector holes (401) are located in the other of the upper back (1) and the lower back (2). The connectors (3) and the connector holes (401) are inserted and fitted together, so that the upper back (1) and the lower back (2) are connected as a whole.

2. The seat backrest that facilitates packaging according to claim 1, characterized in that, The upper side of the lower back (2) is connected to several tubular mounting tubes (4), and the hollow part of the mounting tube (4) forms the insertion hole (401). The lower side of the upper back (1) is correspondingly provided with several columnar insertion pieces (3).

3. The packaging-friendly seat back as described in claim 2, characterized in that, The upper back (1) is a split structure, including a front cushion (110) and a rear plate (120). The cushion (110) is detachably connected to the rear plate (120), and the connector (3) is clamped between the cushion (110) and the rear plate (120).

4. The packaging-friendly seat back as described in claim 3, characterized in that, The plurality of plug-in parts (3) are connected by a horizontally arranged connecting plate (5), which is detachably connected to the rear plate (120).

5. The packaging-friendly seat back as described in claim 3, characterized in that, The rear plate (120) has a plurality of clearance holes (121) formed on it, and the clearance holes (121) are configured to avoid the plug-in member (3).

6. The packaging-friendly seat back as described in claim 2, characterized in that, The lower back (2) is a split structure, including a front pad (210) and a rear cover (220). The pad (210) is detachably connected to the cover (220), and the mounting tube (4) is clamped between the pad (210) and the cover (220).

7. The packaging-friendly seat back as described in claim 6, characterized in that, The plurality of mounting tubes (4) are connected by a horizontally arranged mounting plate (6), which is detachably connected to the cover plate (220).

8. The packaging-friendly seat back according to claim 6, characterized in that, The cover plate (220) has a plurality of through holes (221) formed on it, and the through holes (221) are configured to avoid the mounting tube (4).

9. The packaging-friendly seat back according to claim 2, characterized in that, The side wall of the mounting tube (4) is hollowed out to form several mounting holes (402), and the plug (3) is provided with several threaded holes (301). When the plug (3) is inserted into the mounting tube (4), the two are connected and fixed by screws. The screws pass through the mounting holes (402) and are threaded into the threaded holes (301).

10. The packaging-friendly seat back according to claim 2, characterized in that, The mounting tube (4) is also detachably connected to a sleeve-shaped nest (7), which is configured to fill the gap between the plug (3) and the mounting tube (4).

11. The packaging-friendly seat back according to claim 1, characterized in that, The bottom of the upper back (1) is a downwardly protruding arc-shaped structure, and the top of the lower back (2) is concave downward to form an arc-shaped positioning surface (201). The bottom of the upper back (1) is attached to the positioning surface (201).

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