A mechanism for disassembling and assembling seat rods, a seat frame, and a seat.

Abstract

This utility model provides a disassembly and assembly mechanism for seat rods, a seat frame, and a seat, including at least one connecting seat and at least one rod. The connecting seat includes a insertion slot for receiving the rod and a locking mechanism. The end of the rod includes a first insertion member, and the locking mechanism is provided with a second insertion member. The end of the rod can be inserted into the insertion slot. The locking mechanism can be moved to a locked state to allow the second insertion member to be inserted into the corresponding insertion member, and the locking mechanism can be moved to an unlocked state to allow the second insertion member to be separated from the first insertion member. The user only needs to switch the locking member to the unlocked state to directly pull the rod out of the connecting seat or easily insert it into the corresponding insertion slot; then switch the locking member to the locked state to instantly complete the rigid connection between the rod and the connecting seat, which is convenient for connection and quick for disassembly and assembly.

Description

Technical Field

[0001] This utility model relates to a disassembly and assembly mechanism for seat rods, a seat frame, and a seat. Background Technology

[0002] Portable chairs are popular for outdoor activities, impromptu meetings, or space-constrained scenarios due to their ease of carrying and storage. Currently, the mainstream portable chairs on the market mainly adopt two structural forms: folding and modular. Folding chairs (such as the common X-shaped and butterfly-shaped folding chairs) typically connect their components via hinges or pivots, allowing for quick conversion between the open and folded states. This structure is relatively simple to operate; it's ready to use as soon as it's unfolded. However, its inherent drawback is that even when folded, the overall frame structure of the chair (such as the legs and backrest support) is usually still interconnected and occupies a relatively fixed three-dimensional space, resulting in a relatively large folded volume. For backpackers or in situations with extremely high storage space requirements (such as the trunk of a small vehicle or a narrow storage cabinet), its space utilization is still not ideal. Modular chairs, on the other hand, use a modular design, where the main supporting components (such as the legs, crossbeams, and seat support) can be completely separated. This design theoretically achieves ultimate flattening for storage, with components stacked or laid flat, significantly reducing the space required for transportation and storage. However, its significant drawback is the cumbersome and inconvenient disassembly and assembly process. Before use, users need to manually assemble multiple parts (often using screws, pins, or complex clips), which is time-consuming and laborious; after use, the disassembly process must be reversed. This not only reduces the ease of use, but frequent disassembly and assembly may also lead to wear or loss of connecting parts, affecting the product's durability and user experience.

[0003] Therefore, existing portable seating technologies present a clear contradiction: folding structures are easy to operate but have limited space utilization; detachable structures have high space utilization but poor operational convenience. The market urgently needs a new portable seating solution that can achieve a very small storage volume while providing the "ready to use" convenience of folding seats. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a disassembly and assembly mechanism, seat frame and seat suitable for seat rods, which can achieve quick disassembly and assembly and a stable connection.

[0005] To solve the above-mentioned technical problems, this utility model provides a disassembly and assembly mechanism for seat rods, including at least one connecting seat and at least one rod; the connecting seat includes a insertion slot for receiving the rod, the connecting seat also includes a locking mechanism, the end of the rod includes a first insertion member, the locking mechanism is provided with a second insertion member, the end of the rod can be inserted into the insertion slot, the locking mechanism can be moved to a locked state so that the second insertion member can be correspondingly inserted with the first insertion member, and the locking mechanism can be moved to an unlocked state so that the second insertion member can be separated from the first insertion member.

[0006] In a preferred embodiment, a protrusion is formed on one side of the end of the rod, and a notch is provided in the insertion slot corresponding to the protrusion, so that the protrusion can be inserted into the notch; the first insertion member is provided on the protrusion.

[0007] In a preferred embodiment, the first connector is a slot disposed on the protrusion; the second connector includes a plug that can be inserted into the slot.

[0008] In a preferred embodiment, the slot extends radially along the rod.

[0009] In a preferred embodiment, the locking mechanism includes a drive member and a locking member; the locking member is provided with a second connector, the locking member is movably connected to the connector, and the drive member is used to drive the locking member to move so as to drive the second connector to be inserted into the first connector.

[0010] In a preferred embodiment, the first end of the locking member is rotatably connected to the connecting seat, and the second end of the locking member is provided with the second plug-in member; the driving member includes a cover and a pressing driving part, the pressing driving part being used to drive the cover to press against the second end of the locking member so as to drive the second plug-in member to be inserted into the first plug-in member.

[0011] In a preferred embodiment, the locking mechanism further includes a spring disposed at a second end of the cover and the locking member.

[0012] In a preferred embodiment, the pressing drive includes a connecting rod and a cam handle. The connecting rod is fixedly connected to the connecting seat, the cover is slidably disposed on the connecting rod, and the cam handle is rotatably connected to the connecting rod. The cam handle can rotate so that its cam surface presses against the cover, thereby driving the cover to press against the second end of the locking member.

[0013] This utility model also provides a seat frame, including the aforementioned disassembly and assembly mechanism for seat rods;

[0014] The seat frame includes at least one connecting seat and at least three rods, the at least three rods being able to be inserted into the connecting seat respectively to form a support base between the at least three rods.

[0015] In a preferred embodiment, the seat frame includes two of the connecting seats and eight of the rods; each of the connecting seats is connected to four of the rods, and a crossbar is detachably connected between the two connecting seats;

[0016] Each of the four rods of the connecting seat is divided into a front leg rod, a rear leg rod, a seat rod, and a back rod;

[0017] The two front legs and two rear legs of the two connecting seats define the support base, and the two seat rods of the two connecting seats define the load-bearing seat of the chair;

[0018] The seat frame also includes a backrest bar that is detachably connected to the two backrest bars of the two connecting seats to define the backrest of the seat.

[0019] In a preferred embodiment, four of the said plug slots are spaced apart on the peripheral wall of the connector, the connector having a reference line passing through the center of the circle, wherein two of the said plug slots are arranged in a mirror image symmetrically with the other two said plug slots through the reference line.

[0020] In a preferred embodiment, two insertion slots near the first end of the baseline are used to receive the front leg and the rear leg, and two insertion slots near the second end of the baseline are used to receive the seat and the back bar.

[0021] In a preferred embodiment, a sleeve is provided at each end of the backrest rod, and a swing button is provided on the sleeve. One end of the swing button is provided with an insert, and the end of the backrest rod is provided with an annular groove. The end of the backrest rod can be inserted into the sleeve so that the annular groove is connected to the insert. The other end of the swing button can be pressed to drive the insert away from the annular groove. The swing button is also provided with a return spring.

[0022] This utility model also provides a seat, including the aforementioned seat frame;

[0023] The seat also includes a seat cushion disposed on the seat frame.

[0024] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:

[0025] 1. The connecting seat includes a insertion slot for receiving the rod, and also includes a locking mechanism. The end of the rod includes a first insertion member, and the locking mechanism is provided with a second insertion member. The end of the rod can be inserted into the insertion slot. The locking mechanism can move to a locked state to allow the second insertion member to be inserted into the corresponding first insertion member, and can also move to an unlocked state to allow the second insertion member to be separated from the first insertion member. Users only need to switch the locking member to the unlocked state to directly pull the rod out of the connecting seat or easily insert it into the corresponding insertion slot; then switching the locking member to the locked state instantly completes the rigid connection between the rod and the connecting seat. This design eliminates the need for tools (such as screwdrivers) or complex assembly processes required for traditional detachable chairs, achieving a near-folding chair "ready-to-use" experience while retaining the storage advantages of detachable chairs.

[0026] 2. Individual components can be replaced independently after damage, avoiding the problem of traditional one-piece folding chairs being scrapped due to partial damage. It is also superior to the assembly failure caused by missing screws in traditional disassembly chairs, extending the product life cycle and reducing user maintenance costs.

[0027] 3. Complementary protrusions and notches are designed at the mating ends of the rod and the connector: When the rod is inserted into the connector, the protrusions and notches engage to form an interlock. This design achieves circumferential constraint before the locking mechanism takes effect, effectively preventing the rod from rotating under stress (such as the torque when a user gets up / sits down), avoiding loosening of the connection or structural instability due to component displacement, and significantly improving the safety and durability of the seat. Attached Figure Description

[0028] Figure 1 This is a perspective view of the seat in a preferred embodiment of the present invention;

[0029] Figure 2 This is a three-dimensional schematic diagram of the seat frame in a preferred embodiment of the present invention;

[0030] Figure 3 This is an exploded view of the seat frame in a preferred embodiment of the present invention;

[0031] Figure 4 This is one of the exploded views of the rod and connecting seat in a preferred embodiment of this utility model;

[0032] Figure 5 This is the second exploded view of the rod and connecting seat in the preferred embodiment of this utility model;

[0033] Figure 6 This is an exploded view of the backrest and backrest in a preferred embodiment of the present invention;

[0034] Figure 7This is a cross-sectional schematic diagram of the connecting seat and the rod in the locked state in a preferred embodiment of the present invention;

[0035] Figure 8 This is a cross-sectional schematic diagram of the connecting seat and the rod in the unlocked state in a preferred embodiment of this utility model;

[0036] Figure 9 This is a plan view of the end face of the connecting seat in a preferred embodiment of the present invention. Detailed Implementation

[0037] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0038] See Figures 1-9 A type of seat, the seat comprising a seat frame 100 and a seat cushion 200.

[0039] The seat frame 100 includes two connecting seats 1, eight rods 2, a crossbar 3 and a backrest rod 4. Each connecting seat 1 is detachably connected to four rods 2, and the crossbar 3 is detachably connected between two connecting seats 1. The crossbar 3 is connected to the connecting seat 1 by screws.

[0040] See Figure 3 Each connecting seat 1 comprises four rods 2, namely a front leg rod 23, a rear leg rod 24, a seat rod 25, and a backrest rod 26. The two front leg rods 23 and two rear leg rods 24 of two connecting seats 1 define a support base, and the two seat rods 25 of two connecting seats 1 define the load-bearing seat. The backrest rod 4 is detachably connected to the two backrest rods 26 of the two connecting seats 1 to define the backrest of the seat. The seat cushion 200 is disposed on the load-bearing seat and the backrest, allowing the user to sit on the load-bearing seat and lean against the backrest. The crossbar 3, backrest rod 4, and backrest rod 26 form a frame for reinforcement. Support sleeves 27 are respectively provided at the ends of the front leg rods 23 and rear leg rods 24 to increase friction relative to the ground. In some simple variations, the seat frame 100 includes one connecting seat 1 and three rods 2, the three rods 2 being respectively inserted into the connecting seat 1 to form the support base between at least three rods 2; the remaining rods 2 are then inserted into the connecting seat 1 to form the load-bearing seat and the backrest seat; or, the seat frame 100 may not have a backrest seat, only the load-bearing seat.

[0041] The backrest rod 4 has a sleeve 41 at each end, and a swing button 42 is provided on the sleeve 41. The first end of the swing button 42 is provided with a block 421, and the end of the backrest rod 26 is provided with an annular groove 261. The end of the backrest rod can be inserted into the sleeve 41 so that the annular groove 261 is connected to the block 421. The second end of the swing button 42 can be pressed to drive the block 421 away from the annular groove 261. The swing button 42 is also provided with a return spring 422. The return spring 422 is provided on the second end of the swing button 42 so that the block 421 on the first end of the swing button 42 is pressed down.

[0042] The connecting seat 1 and the rod 2 are detachably connected via disassembly and assembly mechanisms. The connecting seat 1 includes a insertion slot 11 for receiving the rod 2. In this embodiment, the connecting seat 1 includes four insertion slots 11. The connecting seat 1 also includes a locking mechanism 12. The end of the rod 2 includes a first insertion member 21, and the locking mechanism 12 is provided with a second insertion member 121. The end of the rod 2 can be inserted into the insertion slot 11. The locking mechanism 12 can be moved to a locked state to allow the second insertion member 121 to be inserted into the first insertion member 21. The locking mechanism 12 can also be moved to an unlocked state to allow the second insertion member 121 to be separated from the first insertion member 21.

[0043] A protrusion 22 is formed on one side of the end of the rod 2. The insertion groove 11 has a notch 111 corresponding to the protrusion 22, and the protrusion 22 can be inserted into the notch 111. The first insertion member 21 is provided on the protrusion 22. When the end of the rod 2 is inserted into the insertion groove 11, the protrusion 22 corresponds to the notch 111, so that the rotation of the rod 2 and the insertion groove 11 around the axial direction of the rod 2 is restricted, and the rod 2 will not rotate.

[0044] In this embodiment, the first connector 21 is a slot disposed on the protrusion 22; the second connector 121 includes a plug that can be inserted into the slot. The slot extends radially along the rod 2.

[0045] In this embodiment, the locking mechanism 12 includes a driving member 122 and a locking member 123. The locking member 123 is provided with the second connector 121. The locking member 123 is movably connected to the connecting seat 1. The driving member 122 is used to drive the locking member 123 to move, so as to drive the second connector 121 to be inserted into the first connector 21. In this embodiment, the connecting seat 1 is provided with four locking members 123 and one driving member 122. The driving member 122 can drive all four locking members 123 to move simultaneously. In some simpler alternatives, multiple driving members 122 can also be provided, and each driving member 122 drives one or more locking members 123 to move.

[0046] The first end of the locking member 123 is rotatably connected to the connecting seat 1, and the second end of the locking member 123 is provided with the second plug-in member 121. The driving member 122 includes a cover 1221 and a pressing driving part 1222, which drives the cover 1221 to press against the second end of the locking member 123 to drive the second plug-in member 121 to be inserted into the first plug-in member 21. The locking mechanism 12 also includes a spring 124 disposed at the second end of the cover 1221 and the locking member 123. The pressing drive unit 1222 includes a connecting rod 1223 and a cam handle 1224. The connecting rod 1223 is fixedly connected to the connecting seat 1. The cover 1221 is slidably disposed on the connecting rod 1223. The cam handle 1224 is rotatably connected to the connecting rod 1223. The cam handle 1224 can rotate so that its cam surface 1225 presses against the cover 1221, thereby driving the cover 1221 to press against the second end of the locking member 123.

[0047] In this embodiment, the connecting seat 1 is disc-shaped, and the crossbar 3 connects the two facing end faces of the connecting seats 1. A cover 1221 is disposed on the opposite end face of the connecting seat 1, and the outline of the cover 1221 matches the outline of the connecting seat 1. The connecting rod 1223 is disposed at the center of the connecting seat 1, and four insertion slots 11 are spaced apart on the peripheral wall of the connecting seat 1. (See reference...) Figure 9 The four insertion slots 11 are spaced apart on the peripheral wall of the connecting seat 1. The axial direction of each insertion slot 11 passes through the center of the connecting seat 1. The connecting seat 1 has a reference line L passing through the center, wherein two insertion slots 11 are mirror-symmetrically arranged with respect to the other two insertion slots 11 about this reference line. Specifically, the two insertion slots 11 near the first end L1 of the reference line L are used to receive the front leg rod 23 and the rear leg rod 24, and the two insertion slots 11 near the second end L2 of the reference line L are used to receive the seat rod 25 and the back rod 26. This facilitates mold making and saves on mold costs.

[0048] During installation, the crossbar 3 is pre-connected to the two connecting seats 1. The backrest bar 4 and backrest bar 26 are connected. By turning the cam handle 1224, the cover 1221 is separated from the locking member 123. The cover 1221 is pushed away from the connecting seat 1 by the spring 124, and a certain distance is maintained between the end face of the cover 1221 and the connecting seat 1. The end of the rod 2 can be inserted into the insertion slot 11. Since the locking member 123 is movable at this time and is in the unlocked state, the end of the rod 2 can push open the second end of the locking member 123. Since the spring 124 is located on the second end of the locking member 123, the user can feel the second insertion member 121 on the second end of the locking member 123 corresponding to the first insertion member 21. After all four insertion slots 11 of the connecting seat 1 are filled with the rods 2, the cam handle 1224 can be turned, and the cam surface 1225 of the cam handle 1224 presses against the cover 1221. The cover 1221 is pressed against the second end of the locking member 123 by the action of the cam surface 1225, so that the second end of the locking member 123 cannot move, thus achieving a locked state. During disassembly, simply turn the cam handle 1224 again, pull out the rods 2 in sequence, separate the backrest 26 from the backrest 4, arrange the multiple rods 2, the backrest 4, and the crossbar 3 (the two ends of the crossbar 3 are connected to the two connecting seats 1) in parallel, and then roll the seat cushion 200 around the multiple rods 2, the backrest 4, and the crossbar 3 for easy carrying.

[0049] The above description is only a preferred embodiment of the present utility model, but the design concept of the present utility model is not limited thereto. Any non-substantial modifications made to the present utility model by those skilled in the art within the scope of the technology disclosed in the present utility model using this concept shall be deemed as an infringement of the protection scope of the present utility model.

Claims

1. A dismounting mechanism for a seat rod, characterized by, The device includes at least one connector and at least one rod. The connector includes a slot for receiving the rod and a locking mechanism. The end of the rod includes a first connector, and the locking mechanism includes a second connector. The end of the rod can be inserted into the slot. The locking mechanism can be moved to a locked state to allow the second connector to be inserted into the first connector. The locking mechanism can also be moved to an unlocked state to allow the second connector to be separated from the first connector.

2. A mechanism for dismounting a seat rod according to claim 1, characterized in that: A protrusion is formed on one side of the end of the rod, and a notch is provided in the insertion groove corresponding to the protrusion, so that the protrusion can be inserted into the notch; the first insertion member is provided on the protrusion.

3. A mechanism for dismounting a seat rod according to claim 2, characterized in that: The first connector is a slot disposed on the protrusion; the second connector includes a plug that can be inserted into the slot.

4. A mechanism for dismounting a seat rod according to claim 3, characterized in that: The slot extends radially along the rod.

5. A mechanism for dismounting a seat rod according to any one of claims 1-4, characterized in that: The locking mechanism includes a driving member and a locking member; the locking member is provided with a second plug-in member, the locking member is movably connected to the connecting seat, and the driving member is used to drive the locking member to move so as to drive the second plug-in member to be plugged into the first plug-in member.

6. The disassembly and assembly mechanism for seat rods as described in claim 5, characterized in that: The first end of the locking member is rotatably connected to the connecting seat, and the second end of the locking member is provided with the second plug-in member; the driving member includes a cover and a pressing driving part, the pressing driving part is used to drive the cover to press against the second end of the locking member so as to drive the second plug-in member to be inserted into the first plug-in member.

7. A mechanism for the removal of a seat rod according to claim 6, wherein: The locking mechanism also includes a spring disposed at the second end of the cover and the locking member.

8. A disassembly and assembly mechanism for seat rods as described in claim 6 or 7, characterized in that: The pressing drive unit includes a connecting rod and a cam handle. The connecting rod is fixedly connected to the connecting seat. The cover is slidably disposed on the connecting rod. The cam handle is rotatably connected to the connecting rod. The cam handle can rotate so that its cam surface presses against the cover, thereby driving the cover to press against the second end of the locking member.

9. A seat frame characterized by, Includes a disassembly and assembly mechanism for a seat post as described in any one of claims 1-8; The seat frame includes at least one connecting seat and at least three rods, the at least three rods being able to be inserted into the connecting seat respectively to form a support base between the at least three rods.

10. A seat frame as claimed in claim 9, characterised in that: The seat frame includes two connecting seats and eight rods; each connecting seat is connected to four rods, and a crossbar is detachably connected between the two connecting seats; Each of the four rods of the connecting seat is divided into a front leg rod, a rear leg rod, a seat rod, and a back rod; The two front legs and two rear legs of the two connecting seats define the support base, and the two seat rods of the two connecting seats define the load-bearing seat of the chair; The seat frame also includes a backrest bar that is detachably connected to the two backrest bars of the two connecting seats to define the backrest of the seat.

11. A seat frame as claimed in claim 10, characterised in that: The four insertion slots are spaced apart on the peripheral wall of the connector, which has a reference line passing through the center of the circle, wherein two of the insertion slots are mirror-symmetrically arranged with respect to the other two insertion slots through the reference line.

12. A seat frame as described in claim 11, characterized in that: Two insertion slots near the first end of the baseline are used to receive the front leg and the rear leg, and two insertion slots near the second end of the baseline are used to receive the seat and the back bar.

13. A seat frame as defined in claim 10 wherein: The backrest rod has a sleeve at each end, and a swing button is provided on the sleeve. One end of the swing button is provided with an insert, and the end of the backrest rod is provided with an annular groove. The end of the backrest rod can be inserted into the sleeve so that the annular groove is connected to the insert. The other end of the swing button can be pressed to drive the insert away from the annular groove. The swing button is also provided with a return spring.

14. A seat, characterized in that Including a seat frame as described in any one of claims 9-13; The seat also includes a seat cushion disposed on the seat frame.

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