Modular quick-release seat

Abstract

This application discloses a modular quick-release chair seat, including a seat frame unit and a support unit. The top of the seat frame unit is configured to connect to the seat cushion, and the bottom of the support unit is configured to connect to the chassis. The bottom of the seat frame unit and the support unit are detachably connected via a quick-release structure. The quick-release structure includes a snap-fit ​​buckle and a snap-fit ​​groove that engage with each other. The snap-fit ​​buckle is located at one of the bottom of the seat frame unit and the top of the support unit, and the snap-fit ​​groove is located at the other of the bottom of the seat frame unit and the top of the support unit. The snap-fit ​​buckle includes a protruding head at its top and has elastic deformation capability, allowing the snap-fit ​​head to engage or disengage from the snap-fit ​​groove by means of the snap-fit ​​buckle's elastic deformation, thereby fixing or disengaging the seat frame unit and the support unit. The modular quick-release chair seat provided by this application, with the seat frame unit and support unit detachably connected, saves materials and promotes sustainable development; furthermore, the installation and disassembly of the seat frame unit is very simple and convenient.

Description

Technical Field

[0001] This utility model relates to the field of seating technology, specifically to a modular quick-release chair seat. Background Technology

[0002] The seat is a fundamental component of seating furniture, playing a crucial role in supporting the user's buttocks. Current office chair seats typically consist of a seat frame and a seat cushion. The bottom of the seat frame is connected to a base, and the flexible seat cushion is covered with a mesh fabric overlay on top of the seat frame. This type of seat has a simple overall structure and provides a comfortable seating experience.

[0003] However, as users' quality of life improves, their demands for chair seats are also increasing. Because the seat cushion is directly fixed to the seat frame, if the cushion gets dirty, or if users dislike the material or color of the mesh fabric, the entire chair seat needs to be removed and replaced. This results in a significant waste of materials, which is contrary to the principles of sustainable development. Furthermore, removing the entire chair seat is a rather complicated process.

[0004] Therefore, how to provide a chair seat with a cushion that is easy to remove and replace 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 modular quick-release chair seat in which the seat frame unit and the support unit are detachably connected. This allows the seat frame unit to be removed from the support unit for replacement when the seat cushion needs to be changed, without the need to replace the entire chair seat, thus saving materials and promoting sustainable development. Furthermore, the seat frame unit and the support unit are fixed by a snap-fit ​​and snap-slot engagement. With the elastic deformation of the snap, the snap head can easily engage or disengage from the snap slot, making the installation and disassembly of the seat frame unit very simple and convenient.

[0006] The effect of this utility model is achieved as follows:

[0007] This application provides a modular quick-release chair seat, including a seat frame unit and a support unit. The top of the seat frame unit is configured to connect to the seat cushion, and the bottom of the support unit is configured to connect to the chassis. The bottom of the seat frame unit and the support unit are detachably connected by a quick-release structure. The quick-release structure includes a buckle and a buckle groove that engage with each other. The buckle is located at one of the bottom of the seat frame unit and the top of the support unit, and the buckle groove is located at the other of the bottom of the seat frame unit and the top of the support unit. The buckle includes a buckle head that protrudes from the top and has elastic deformation capability, so that the buckle head can engage or disengage from the buckle groove by means of the elastic deformation of the buckle, thereby driving the seat frame unit and the support unit to be fixed or disengaged from each other.

[0008] Furthermore, the top of the support unit is equipped with several buckles, and the seat frame unit is correspondingly perforated to form several buckle slots. By perforating the seat frame unit to form buckle slots, it is more economical to replace the seat frame unit. In addition, the support unit and the seat frame unit are connected by multiple sets of buckles and buckle slots, which improves the connection strength between the two and provides better stability.

[0009] Furthermore, the seat frame unit includes several positioning portions protruding downwards from its bottom end, with slots hollowed out in these positioning portions. This facilitates alignment of the seat frame unit with the snap fasteners via the positioning portions, thereby improving the ease of installation. Additionally, the positioning portions allow for a deeper snap fastener slot, resulting in a more stable connection between the snap fastener and the slot.

[0010] Furthermore, the inner wall of the buckle groove protrudes to form an annular limiting part, with the upper and lower sides of the limiting part inclined. This not only prevents the buckle from easily detaching from the buckle groove due to the stop of the limiting part, thus improving stability, but also causes the buckle to undergo elastic deformation due to the pressure of the inclined surface of the limiting part, making the installation and disassembly of the seat frame unit smoother.

[0011] Furthermore, the buckle has a first slit formed by a horizontal cutout, dividing the end of the buckle into two parts. A buckle head protrudes from the side of the buckle closest to the edge of the seat frame unit or support unit. The buckle can elastically deform and contract inwards with the help of the first slit, allowing the buckle head to smoothly engage or disengage from the buckle slot. By only placing the buckle head on the side of the buckle closest to the edge of the seat frame unit or support unit, not only can the buckle engage more easily in the buckle slot, but the seat frame unit is also less likely to detach from the support unit, resulting in better stability.

[0012] Furthermore, the seat frame unit and support unit are equipped with multiple buckles, located on the front and rear sides, and / or the buckles on the left and right sides are symmetrically arranged. This ensures that when the seat frame unit is subjected to external forces, the edges of the seat frame unit are less likely to warp due to the restraint of the buckles around the perimeter, thereby further improving the stability of the chair seat.

[0013] Furthermore, the front of the seat frame unit has several second cutouts, allowing the front of the seat frame unit to undergo elastic deformation through these cutouts. This makes it easier for the front of the seat to undergo elastic deformation, thereby providing a softer and more elastic support experience for the user's legs, resulting in greater comfort.

[0014] Furthermore, the edge of the seat frame unit extends horizontally beyond the support unit. This extension of the seat frame unit's edge provides operating space for the user's hands, making the disassembly and removal of the seat frame unit easier.

[0015] Furthermore, the quick-release structure also includes a hook and a U-shaped hanging rod. The hook is located at one of the bottom ends of the seat frame unit and the top end of the support unit, while the hanging rod is horizontally located at the other of the bottom ends of the seat frame unit and the top end of the support unit. When the hook engages with the hanging rod, the seat frame unit can rotate slightly up and down relative to the support unit. The engaging action of the hook and hanging rod not only enhances the connection strength between the seat frame unit and the support unit but also provides auxiliary positioning, thus simplifying the installation of the seat frame unit.

[0016] Furthermore, the hanging rod is located at the rear of the support unit, and several hooks are correspondingly provided at the rear of the seat frame unit. This minimizes the impact of external forces on the hooks and hanging rod during seating, making them less prone to detachment and thus improving the stability of the chair seat.

[0017] The modular quick-release chair seat provided in this application features a detachable connection between the seat frame unit and the support unit. This allows for seat cushion replacement by simply detaching the seat frame unit from the support unit, eliminating the need to replace the entire chair seat, thus saving materials and promoting sustainable development. Furthermore, the seat frame unit and support unit are secured using a snap-fit ​​and slotted engagement mechanism. The snaps' elastic deformation allows the snap heads to easily engage or disengage from the slots. To install the seat frame unit, align the snaps with the slots and press the seat frame unit downwards to engage the snap heads and secure it. To disassemble, simply pull the seat frame unit upwards to disengage the snap heads. This makes the installation and removal of the seat frame unit extremely simple and convenient. 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:

[0019] Figure 1 A schematic diagram of the bottom structure of the modular quick-release chair seat provided in an embodiment of this application;

[0020] Figure 2 This is a schematic diagram of the connection structure between the frame unit and the support unit provided in an embodiment of this application;

[0021] Figure 3 This is a schematic diagram of the connection structure between the seat cushion and the seat frame unit provided in an embodiment of this application;

[0022] Figure 4 This is a schematic diagram of the connection structure between the buckle and the buckle groove provided in an embodiment of this application;

[0023] Figure 5 A cross-sectional structural diagram of a chair seat provided in an embodiment of this application;

[0024] Figure 6A schematic diagram of the connection structure between the seat frame unit and the support unit when using hooks and hanging rods, provided in an embodiment of this application;

[0025] Figure 7 This is a schematic diagram illustrating the change process of the seat frame unit relative to the support unit when it rotates, as provided in the embodiments of this application.

[0026] The reference numerals in the attached drawings are as follows: 1-seat frame unit, 101-second cut, 110-fastener groove, 111-limiting part, 120-positioning part, 130-hook, 2-support unit, 210-buckle, 211-buckle head, 212-first cut, 220-hanging rod, 3-seat cushion, 4-chassis. Detailed Implementation

[0027] 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.

[0028] Please refer to the attached document. Figure 1-7 This application provides a modular quick-release chair seat, including a seat frame unit 1 and a support unit 2. The top of the seat frame unit 1 is configured to connect to a seat cushion 3, and the bottom of the support unit 2 is configured to connect to a chassis 4. The bottom of the seat frame unit 1 and the support unit 2 are detachably connected by a quick-release structure. The quick-release structure includes a buckle 210 and a buckle groove 110 that engage with each other. The buckle 210 is located at one of the bottom of the seat frame unit 1 and the top of the support unit 2, and the buckle groove 110 is located at the other of the bottom of the seat frame unit 1 and the top of the support unit 2. The buckle 210 includes a buckle head 211 protruding from the top, and the buckle 210 has elastic deformation capability, so that the buckle head 211 can be engaged or disengaged from the buckle groove 110 by means of the elastic deformation of the buckle 210, thereby driving the seat frame unit 1 and the support unit 2 to be fixed or disengaged from each other.

[0029] In this embodiment, the seat frame unit 1 and the support unit 2 are detachably connected, so that when the seat cushion 3 needs to be replaced, only the seat frame unit 1 needs to be removed from the support unit 2 for replacement, without replacing the entire chair seat, saving materials and promoting sustainable development. Furthermore, the seat frame unit 1 and the support unit 2 are fixed together by a snap-fit ​​mechanism between a buckle 210 and a latching groove 110. Utilizing the elastic deformation of the buckle 210, the buckle head 211 can easily engage or disengage from the latching groove 110. When installing the seat frame unit 1, the buckle 210 is aligned with the latching groove 110 and pressed downwards to engage the buckle head 211, thus securing the seat frame unit 1. When disassembling, simply pull the seat frame unit 1 upwards to disengage the buckle head 211 from the latching groove 110. This makes the installation and disassembly of the seat frame unit 1 very simple and convenient.

[0030] Please refer to the attached document. Figure 2 and attached Figure 4 In some embodiments of this application, the top of the support unit 2 is provided with several buckles 210, and the seat frame unit 1 is correspondingly hollowed out to form several buckle grooves 110. By hollowing out the seat frame unit 1 to form buckle grooves 110, the seat frame unit 1 can be replaced more efficiently, saving materials. Furthermore, the support unit 2 and the seat frame unit 1 are connected by multiple sets of buckles 210 and buckle grooves 110, which improves the connection strength between the two and provides better stability.

[0031] Please refer to the attached document. Figure 2 In some embodiments of this application, the seat frame unit 1 includes a plurality of positioning portions 120 formed by downward protrusion at the bottom end, and the buckle groove 110 is hollowed out in the positioning portion 120.

[0032] In this embodiment, the perforated groove 110 on the positioning part 120 has a downward-extending tubular structure, which makes it easier to align the buckle 210 through the positioning part 120 when installing the seat frame unit 1, thereby improving the ease of installation. Furthermore, the positioning part 120 makes the groove 110 deeper, resulting in a stronger connection stability between the buckle 210 and the groove 110.

[0033] Please refer to the attached document. Figure 4-5 In some embodiments of this application, the inner wall of the groove 110 is formed with an annular limiting part 111, and the upper and lower sides of the limiting part 111 are inclined.

[0034] In this embodiment, by setting the limiting part 111, not only will the buckle 211 not easily detach from the buckle groove 110 due to the stop of the limiting part 111, thus improving stability; moreover, the upper and lower sides of the limiting part 111 are inclined so that when the seat frame unit 1 is installed and disassembled, the buckle 211 is squeezed by the inclined surface of the limiting part 111, thereby causing the buckle 210 to undergo elastic deformation until the buckle 211 is inserted into or detached from the buckle groove 110, thus making the installation and disassembly operation of the seat frame unit 1 smoother.

[0035] Please refer to the attached document. Figure 5 In some embodiments of this application, the buckle 210 is hollowed out in the horizontal direction to form a first cut 212, the end of the buckle 210 is divided into two parts by the first cut 212, and the buckle 210 protrudes to form a buckle head 211 on the side near the edge of the seat frame unit 1 or the support unit 2.

[0036] In this embodiment, by hollowing out the buckle 210 to form a first cut 212, when the buckle head 211 is squeezed, the buckle 210 can elastically deform and contract inward with the help of the first cut 212, so that the buckle head 212 can smoothly engage or disengage from the buckle groove 110. Furthermore, the buckle head 211 is only provided on the side of the buckle 210 near the edge of the seat frame unit 1 or the support unit 2. This not only makes it easier for the buckle 210 to engage with the buckle groove 110, but also makes it easier for the edge of the seat frame unit 1 to lift up when subjected to external force. At this time, the buckle head 211 on this side is tightly engaged with the buckle groove 110, making it less likely for the seat frame unit 1 to detach from the support unit 2, thus improving stability.

[0037] Please refer to the attached document. Figure 2 In some embodiments of this application, the seat frame unit 1 and the support unit 2 are provided with a plurality of buckles 210, which are located on the front and rear sides, and / or the buckles 210 located on the left and right sides are symmetrically arranged with buckles 211.

[0038] In this embodiment, preferably, fourteen sets of buckles 210 and buckle grooves distributed circumferentially are provided between the seat frame unit 1 and the support unit 2. By symmetrically arranging the buckles 211 on the front and rear sides or left and right sides, that is, the buckles 211 on the seat frame unit 1 and the support unit 2 are all oriented towards the edge, the edge of the seat frame unit 1 is less likely to warp when subjected to external force, thanks to the stopping effect of the buckles 211 around it, thereby further improving the stability of the chair seat.

[0039] Please refer to the attached document. Figure 1 In some embodiments of this application, the front side of the seat frame unit 1 is hollowed out to form a plurality of second cuts 101, so that the front side of the seat frame unit 1 can undergo elastic deformation by means of the second cuts 101.

[0040] In this embodiment, the front side of the seat frame unit 1, i.e. the front side of the seat cushion 3, is configured to support the user's thighs. The front side of the seat frame unit 1 is prone to elastic deformation through the second cut 101, which makes the front side of the chair seat more prone to elastic deformation, thereby providing a softer and more elastic support experience for the user's legs and making it more comfortable.

[0041] Please refer to the attached document. Figure 1-2 In some embodiments of this application, the edge of the seat frame unit 1 extends beyond the support unit 2 in the horizontal direction. The portion of the edge of the seat frame unit 1 that extends beyond the support unit 2 provides operating space for the user's hands, allowing the user to directly grasp the edge of the seat frame unit 1 and pull it upwards when disassembling the seat frame unit 1, thereby making the disassembly operation of the seat frame unit 1 easier.

[0042] In this application, the quick-release structure may also take other forms:

[0043] Please refer to the attached document. Figure 6-7 In some embodiments of this application, the quick-release structure further includes a hook 130 and a U-shaped hanging rod 220. The hook 130 is disposed at one of the bottom end of the seat frame unit 1 and the top end of the support unit 2, and the hanging rod 220 is disposed laterally at the other of the bottom end of the seat frame unit 1 and the top end of the support unit 2. When the hook 130 is engaged with the hanging rod 220, the seat frame unit 1 can rotate slightly up and down relative to the support unit 2.

[0044] In this embodiment, when installing the seat frame unit 1, the user can first align the hook 130 with the hanging rod 220 and snap it in. At this time, the seat frame unit 1 can rotate slightly up and down around the support unit 2, thus initially positioning the seat frame unit 1. Then, simply rotate the seat frame unit 1 closer to the support unit 2 so that the buckle 210 engages with the buckle slot 110 to complete the installation. Conversely, the seat frame unit 1 can be disassembled. Therefore, the snap-fit ​​cooperation between the hook 130 and the hanging rod 220 not only enhances the connection strength between the seat frame unit 1 and the support unit 2 but also provides auxiliary positioning, making the installation of the seat frame unit 1 simpler.

[0045] Please refer to the attached document. Figure 6-7 In some embodiments of this application, the hanging rod 220 is disposed on the rear side of the support unit 2, and a number of hooks 130 are correspondingly disposed on the rear side of the seat frame unit 1.

[0046] In this embodiment, when the user sits on the chair, the front side of the seat is subjected to more external forces. Therefore, by setting the hook 130 and the hanging rod 220 on the rear side of the support unit 2 and the seat frame unit 1, the hook 130 and the hanging rod 220 are less affected by external forces during sitting, and are less likely to detach from each other, thereby improving the stability of the chair.

[0047] 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.

[0048] 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 modular quick-release chair seat, characterized in that, The system includes a seat frame unit (1) and a support unit (2). The top of the seat frame unit (1) is configured to connect to a seat cushion (3), and the bottom of the support unit (2) is configured to connect to a chassis (4). The bottom of the seat frame unit (1) and the support unit (2) are detachably connected by a quick-release structure. The quick-release structure includes a snap-fit ​​buckle (210) and a snap-fit ​​groove (110) that engage with each other. The snap-fit ​​buckle (210) is located at the bottom of the seat frame unit (1) and the top of the support unit (2). One of the ends, the buckle groove (110) is opened at the bottom end of the seat frame unit (1) and the other at the top end of the support unit (2). The buckle (210) includes a buckle head (211) formed by the top protrusion, and the buckle (210) has elastic deformation capability, so that the buckle head (211) can be inserted into or removed from the buckle groove (110) by means of the elastic deformation of the buckle (210), thereby driving the seat frame unit (1) and the support unit (2) to be fixed or removed from each other.

2. The modular quick-release chair seat according to claim 1, characterized in that, The top of the support unit (2) is provided with several buckles (210), and the seat frame unit (1) is correspondingly hollowed out to form several buckle grooves (110).

3. The modular quick-release chair seat according to claim 2, characterized in that, The seat frame unit (1) includes several positioning parts (120) that protrude downward from the bottom end, and the buckle groove (110) is hollowed out in the positioning part (120).

4. The modular quick-release chair seat according to claim 1, characterized in that, The inner wall of the groove (110) protrudes to form an annular limiting part (111), and the upper and lower sides of the limiting part (111) are inclined.

5. The modular quick-release chair seat according to claim 1, characterized in that, The buckle (210) has a first cut (212) formed by horizontal hollowing. The end of the buckle (210) is divided into two parts by the first cut (212), and the buckle (210) protrudes to form the buckle head (211) on the side near the edge of the seat frame unit (1) or the support unit (2).

6. The modular quick-release chair seat according to claim 5, characterized in that, The seat frame unit (1) and the support unit (2) are provided with a plurality of buckles (210), which are located on the front and rear sides, and / or the buckles (211) on the buckles (210) located on the left and right sides are symmetrically arranged.

7. The modular quick-release chair seat according to claim 1, characterized in that, The front side of the seat frame unit (1) is hollowed out with a number of second cuts (101), so that the front side of the seat frame unit (1) can undergo elastic deformation by means of the second cuts (101).

8. The modular quick-release chair seat according to claim 1, characterized in that, The edge of the seat frame unit (1) extends beyond the support unit (2) in the horizontal direction.

9. The modular quick-release chair seat according to claim 1, characterized in that, The quick-release structure also includes a hook (130) and a U-shaped hanging rod (220). The hook (130) is located at one of the bottom end of the seat frame unit (1) and the top end of the support unit (2), and the hanging rod (220) is located laterally at the other of the bottom end of the seat frame unit (1) and the top end of the support unit (2). When the hook (130) is engaged with the hanging rod (220), the seat frame unit (1) can rotate slightly up and down relative to the support unit (2).

10. The modular quick-release chair seat according to claim 9, characterized in that, The hanging rod (220) is located on the rear side of the support unit (2), and a number of hooks (130) are correspondingly provided on the rear side of the seat frame unit (1).

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