Swivel chair convenient to package, disassemble and assemble

Abstract

The utility model discloses a swivel chair convenient to package, assemble and disassemble, which comprises a chair seat, a support base and a connecting support used for connecting the chair seat and the support base, a central tube is arranged at the top of the support base, plastic shaft sleeves are embedded at the upper end and the lower end of the central tube, a fixed arm is arranged at the top of the connecting support, and the plastic shaft sleeves are connected with the fixed arm. A rotating shaft is arranged at the bottom of the connecting support, the rotating shaft can be inserted into a plastic shaft sleeve in the center pipe and can freely rotate in the plastic shaft sleeve, and the connecting support is detachably and fixedly connected with the bottom of the chair seat through the fixing arm. And the connecting bracket is inserted into the plastic shaft sleeve in the central pipe through the rotating shaft and is rotatably connected with the supporting base. The utility model not only is convenient to package and transport, but also is very convenient to disassemble and assemble, does not need professionals or tools, and also has the advantages of simple structure, easiness in realizing low-cost batch manufacturing and production, flexibility in rotation, good stability, difficulty in damage, long service life and the like.

Description

Technical Field

[0001] This utility model relates to a swivel chair that is easy to package and disassemble, and belongs to the field of furniture design technology. Background Technology

[0002] A swivel chair is a type of chair whose sitting part can rotate to adapt to different sitting postures. Due to its convenience and comfort, swivel chairs are commonly used in homes, leisure spaces, and offices, and are very popular among users.

[0003] However, swivel chairs are typically large and relatively complex in structure. While pre-assembling and then packaging them for transport avoids the hassle of users assembling them themselves or hiring professionals, it presents problems such as excessive packaging volume, wasted storage space, susceptibility to damage during transport, and high transportation costs. Conversely, a sales model that involves disassembling and packaging for transport, followed by reassembly at the destination, requires easy assembly, ideally tool-free; otherwise, it will cause assembly difficulties for end-users, potentially impacting sales. Therefore, there is a need in this field to develop swivel chairs that are both easy to package and transport and easy to disassemble and assemble, enabling convenient sales through various models such as online and overseas sales. Utility Model Content

[0004] In view of the above-mentioned problems and needs of the existing technology, the purpose of this utility model is to provide a swivel chair that is easy to package and disassemble.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A swivel chair that is easy to pack and disassemble includes a seat, a support base, and a connecting bracket for connecting the seat and the support base. The support base has a central tube at its top, and plastic bushings are embedded at both the upper and lower ends of the central tube. The connecting bracket has a fixed arm at its top and a rotating shaft at its bottom. The rotating shaft can be inserted into the plastic bushing inside the central tube and can rotate freely within the plastic bushing. The connecting bracket is detachably fixed to the bottom of the seat through the fixed arm, and the connecting bracket is rotatably connected to the support base through the rotating shaft inserted into the plastic bushing inside the central tube.

[0007] In one embodiment, the chair seat is integrally connected with a backrest and armrests.

[0008] In one embodiment, the support base further includes multiple support legs, the upper ends of which are fixedly connected to the outer wall of the central tube and are evenly distributed in an outwardly spreading manner around the central tube.

[0009] In one embodiment, the upper ends of all support legs are welded and fixed to the outer wall of the central tube.

[0010] In one embodiment, the support base further includes an annular retaining ring, and the lower ends of all support legs are fixedly connected to the annular retaining ring.

[0011] In one embodiment, the lower ends of all support legs are welded and fixed to an annular retaining ring.

[0012] In a preferred embodiment, multiple adjustable feet are evenly distributed at the bottom of the annular fixing ring.

[0013] In a preferred embodiment, the plastic bushing is fixedly connected to the central tube by screws.

[0014] In a preferred embodiment, the outer periphery of the plastic bushing is provided with a plurality of reinforcing ribs, and one end of the plastic bushing is provided with a flange.

[0015] In one embodiment, the connecting bracket includes a concave fixing frame, with fixing arms for fixed connection to the bottom of the chair seat respectively fixed at the left and right ends of the concave fixing frame, and the upper end of the rotating shaft fixed at the bottom of the concave fixing frame.

[0016] In one embodiment, two parallel, spaced-apart Y-axis elastic metal plates, both extending forward, are fixedly fixed at the bottom of a concave fixing frame. An X-axis connecting plate is fixed at the bottom front end of the two Y-axis elastic metal plates. A rearwardly extending pivot fixing plate is fixed at the bottom center of the X-axis connecting plate. The upper end of the pivot is fixed at the rear bottom of the pivot fixing plate.

[0017] In one embodiment, the lower end of the rotating shaft is connected to the end of the lower plastic bushing inside the central tube by a hand-tightening screw.

[0018] In a preferred embodiment, a washer is provided between the end of the lower plastic bushing and the hand-tightening screw.

[0019] In a preferred embodiment, the fixed arm is connected to the bottom of the chair seat by a hand-tightened screw.

[0020] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0021] This invention disassembles the swivel chair into three components: the seat, the support base, and the connecting bracket. This allows the swivel chair to be packaged in modular units, facilitating packing, significantly reducing packaging volume, and enabling the stacking of multiple identical components, thus saving storage space, increasing packing capacity, and reducing transportation costs. Furthermore, the connecting bracket is detachably fixed to the bottom of the seat via a fixed arm, and rotatably connected to the support base via a rotating shaft inserted into a plastic bushing within the central tube. This makes disassembly and assembly convenient and simple, requiring no specialized technicians and allowing for tool-free assembly and disassembly, offering significant advantages. In addition, the swivel chair of this invention boasts numerous advantages, including simple structure, ease of low-cost mass production, flexible rotation, good stability, durability, and long service life. Therefore, this invention has significant practical value and progress compared to existing technologies. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of a swivel chair that is easy to package and disassemble, provided by an embodiment of this utility model;

[0023] Figure 2 This is a partial cross-sectional view of the assembly of the support base and the connecting bracket described in the embodiment;

[0024] Figure 3 This is a partial cross-sectional view of the support base described in the embodiment;

[0025] Figure 4 This is a three-dimensional structural schematic diagram of the plastic bushing described in the embodiment;

[0026] Figure 5 This is a three-dimensional structural diagram of the connecting bracket described in the embodiment;

[0027] Figure 6 This is a three-dimensional structural diagram of the connecting bracket described in the embodiment from another perspective;

[0028] Figure 7 This diagram shows the state of the connecting bracket and the chair seat during assembly;

[0029] Figure 8 This is an assembly drawing showing the completed connection bracket and chair seat assembly;

[0030] Figure 9 This diagram shows the state of the support base and connecting bracket during assembly.

[0031] Figure 10 This is an assembly drawing showing the completed support base and connecting bracket assembly;

[0032] The numbers in the figure are as follows:

[0033] 1. Seat; 1-1. Screw holes on the frame; 2. Support base; 2-1. Center tube; 2-2. Support leg; 2-3. Annular fixing ring; 2-31. Adjustable foot pad; 3. Connecting bracket; 3-1. Fixing arm; 3-11. Screw holes on the fixing arm; 3-2. Rotating shaft; 3-3. Concave fixing bracket; 3-4. Y-direction elastic metal plate; 3-5. X-direction connecting plate; 3-6. Rotating shaft fixing plate; 4. Plastic bushing; 4a. Lower plastic bushing; 4-1. Reinforcing rib; 4-2. Flange; 5. Backrest; 6. Armrest; 7. Screw; 8. Hand-tightening screw; 9. Washer. Detailed Implementation

[0034] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Furthermore, it should be noted that the terminology used in this utility model is for the purpose of describing specific embodiments only and is not intended to limit the utility model. Unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by those skilled in the art. The terms "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description; therefore, they should not be construed as limiting this utility model. Additionally, in this utility model, the horizontal direction is defined as X-axis, and the vertical direction is defined as Y-axis.

[0035] Example

[0036] Please combine Figures 1 to 10 As shown in the figure, this embodiment provides a swivel chair that is easy to package and disassemble, including a seat 1, a support base 2, and a connecting bracket 3 for connecting the seat 1 and the support base 2. The support base 2 has a central tube 2-1 at its top, and plastic bushings 4 are embedded at the upper and lower ends of the central tube 2-1. The connecting bracket 3 has a fixed arm 3-1 at its top and a rotating shaft 3-2 at its bottom. The rotating shaft 3-2 can be inserted into the plastic bushing 4 in the central tube 2-1 and can rotate freely in the plastic bushing 4. The connecting bracket 3 is detachably fixed to the bottom of the seat 1 through the fixed arm 3-1, and the connecting bracket 3 is rotatably connected to the support base 2 through the rotating shaft 3-2 inserted into the plastic bushing 4 in the central tube 2-1.

[0037] Please see again. Figure 1As shown in the figure, in this embodiment, the seat 1 is integrally connected with the backrest 5 and the armrest 6, but it is not limited to the design shown in the figure. It can also be that there is only the seat 1, or the seat 1 is only integrally connected with the backrest 5. The shape of the seat 1, the backrest 5 and the armrest 6 is not limited to the design shown in the figure. Known and existing corresponding designs can be adopted. This utility model does not make any special limitations in this regard.

[0038] Please see again. Figure 1 As shown in the figure, in this embodiment, the support base 2 further includes multiple support legs 2-2 and annular fixing rings 2-3. The upper ends of all support legs 2-2 are fixedly connected to the outer wall of the central tube 2-1 and are evenly distributed outwardly around the circumference of the central tube 2-1. The lower ends of all support legs 2-2 are fixedly connected to the annular fixing rings 2-3. Specifically, in this embodiment, the central tube 2-1, support legs 2-2, and annular fixing rings 2-3 are all made of metal. The upper ends of all support legs 2-2 are welded and fixed to the outer wall of the central tube 2-1, and the lower ends of all support legs 2-2 are welded and fixed to the annular fixing rings 2-3. This design is not only easy to process and manufacture, but also gives the support base 2 very high stability and advantages such as being not easily damaged and having a long service life. It should also be noted that although the annular fixing rings 2-3 shown in the figure are located on the outer periphery of the support legs 2-2, this utility model is not limited to this design. For example, the annular fixing rings 2-3 can also be located on the inner periphery of the support legs 2-2.

[0039] In addition, as a preferred option, multiple adjustable feet 2-31 are evenly distributed at the bottom of the annular fixing ring 2-3 to facilitate adjustment of the installation height of the support base 2 to better adapt to ground with different flatness, thereby ensuring its better stability.

[0040] Please see again. Figure 1 and Figure 3 As shown, in this embodiment, the plastic bushing 4 is fixedly connected to the central tube 2-1 by screws 7. This ensures stable rotation between the plastic bushing 4 and the rotating shaft 3-2, and also facilitates the replacement of the easily worn plastic bushing 4.

[0041] In addition, as a preferred embodiment, the plastic bushing 4 is provided with a number of reinforcing ribs 4-1 evenly distributed on its outer periphery, and a flange 4-2 is provided at one end of the plastic bushing 4. The reinforcing ribs 4-1 can improve the service life of the plastic bushing 4, and the flange 4-2 can facilitate the plastic bushing 4 to be embedded and fixed at the upper and lower ends of the central tube 2-1.

[0042] Please combine Figures 5 to 8As shown, in this embodiment, the connecting bracket 3 includes a concave fixing frame 3-3. Fixing arms 3-1 for fixed connection with the bottom of the seat 1 are fixed at the left and right ends of the concave fixing frame 3-3, respectively. The upper end of the rotating shaft 3-2 is fixed at the bottom of the concave fixing frame 3-3. This design allows for a certain distance between the upper end of the rotating shaft 3-2 and the bottom of the seat 1, thereby avoiding affecting the rotational movement between the seat 1 and the support base 2. Specifically, in this embodiment, two parallel, spaced-apart, forward-extending Y-axis elastic metal plates 3-4 are symmetrically fixed at the bottom of the concave fixing frame 3-3. An X-axis connecting plate 3-5 is fixed at the bottom front end of the two Y-axis elastic metal plates 3-4. A rearward-extending pivot fixing plate 3-6 is fixed at the bottom center of the X-axis connecting plate 3-5. The upper end of the pivot 3-2 is fixed at the rear bottom of the pivot fixing plate 3-6. This design not only ensures the rotational movement between the seat 1 and the support base 2, but also enables the swivel chair to rock backward simultaneously through the design of the Y-axis elastic metal plates 3-4, thus making the swivel chair more comfortable to use. In addition, the structure of the connecting bracket 3 cleverly simplifies the disassembly and assembly operations between it and the seat 1 and the support base 2. However, it should be noted that this utility model is not limited to this design. The upper end of the rotating shaft 3-2 can also be directly fixed to the bottom center of the concave fixing frame 3-3. In this case, only the rotation function between the seat 1 and the support base 2 can be realized, but the backward rocking function cannot be realized.

[0043] Please see again. Figure 1 and Figure 2 As shown, in this embodiment, the lower end of the rotating shaft 3-2 is fixedly connected to the end of the lower plastic bushing 4a inside the central tube 2-1 by a hand screw 8, and a washer 9 is provided between the end of the lower plastic bushing 4a and the hand screw 8. By using the hand screw 8 and the washer 9, not only can the problem of the lower plastic bushing 4a falling off during use be avoided, but it is also easy to disassemble and assemble, especially tool-free disassembly and assembly, making the disassembly and assembly operation very convenient.

[0044] Additionally, please see [link / reference] Figure 7 As shown, as a preferred embodiment, the fixed arm 3-1 is also fixedly connected to the bottom of the seat 1 by a hand screw 8, so that the assembly between the connecting bracket 3 and the seat 1 can also be achieved without tools.

[0045] Because the swivel chair described in this utility model can be disassembled into three components—a seat 1, a support base 2, and a connecting bracket 3—for packaging, the support base 2 and the connecting bracket 3 can be placed on the seat for packaging, or they can be packaged separately according to the components. Moreover, multiple identical components can be stacked and stored in boxes, which not only significantly reduces the packaging volume but also significantly saves storage space and increases the packing capacity, making transportation more convenient and significantly reducing transportation costs.

[0046] Furthermore, the swivel chair described in this utility model, which is easy to package and disassemble, is also very simple to assemble. The specific operation is as follows:

[0047] 1) such as Figure 7 As shown, position the seat 1 with its bottom facing upwards. Then, align the screw holes 3-11 on the fixing arm of the connecting bracket 3 with the screw holes 1-1 on the corresponding side frame at the bottom of the seat 1. Finally, use the hand screws 8 to connect and secure the seat. Figure 8 The assembly shown is formed by assembling the connecting bracket 3 with the chair seat;

[0048] 2) such as Figure 9 As shown, with the bottom of the support base 2 facing upwards, insert the rotating shaft 3-2 into the central tube 2-1. Then, place a shim 9 on the lower end of the rotating shaft 3-2 and the end of the lower plastic bushing 4a inside the central tube 2-1, and then fix it with a hand-tightening screw 8. Figure 10 The assembly shown is formed by assembling the support base 2 and the connecting bracket 3.

[0049] To disassemble the swivel chair described in this utility model, the operation is also very simple, just as follows: Figure 10 The swivel chair is placed with its bottom facing upwards, then see... Figure 9 As shown, unscrew the hand screw 8 on the central tube 2-1 and remove the washer 9. Then lift the support base 2 upwards to disengage the rotating shaft 3-2 from the central tube 2-1, thereby separating the support base 2 from the connecting bracket 3, resulting in... Figure 8 The assembly shown; see also the assembly shown. Figure 7 As shown, by unscrewing the hand screw 8 between the fixing arm 3-1 of the connecting bracket 3 and the bottom frame of the seat 1, the three components of the seat 1, the support base 2, and the connecting bracket 3 can be disassembled.

[0050] As can be seen from the above, the swivel chair of this utility model is not only easy to package and transport, but also can be disassembled and assembled by simply unscrewing or screwing on five hand screws. The disassembly and assembly operations are very convenient and quick, requiring no professional personnel or tools, and its practical value is very significant. Furthermore, the swivel chair of this utility model also has many advantages such as simple structure, easy to achieve low-cost mass production, flexible rotation, good stability, not easy to damage, and long service life. Therefore, compared with the prior art, this utility model has significant practical value and progress.

[0051] Finally, it should be pointed out that the above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A swivel chair that is easy to package and disassemble, characterized in that: The device includes a chair seat, a support base, and a connecting bracket for connecting the chair seat and the support base. The support base has a central tube at its top, and plastic bushings are embedded at both the upper and lower ends of the central tube. The connecting bracket has a fixed arm at its top and a rotating shaft at its bottom. The rotating shaft can be inserted into the plastic bushing inside the central tube and can rotate freely within the plastic bushing. The connecting bracket is detachably fixed to the bottom of the chair seat through the fixed arm, and the connecting bracket is rotatably connected to the support base through the rotating shaft inserted into the plastic bushing inside the central tube.

2. The swivel chair that is easy to package and disassemble according to claim 1, characterized in that: The support base also includes multiple support legs, the upper ends of which are fixedly connected to the outer wall of the central tube and are evenly distributed in an outward diffusion pattern around the central tube.

3. The swivel chair that is easy to package and disassemble according to claim 2, characterized in that: The support base also includes an annular fixing ring, and the lower ends of all support legs are fixedly connected to the annular fixing ring.

4. The swivel chair that is easy to package and disassemble according to claim 3, characterized in that: Multiple adjustable feet are evenly distributed at the bottom of the annular fixing ring.

5. The swivel chair that is easy to package and disassemble according to claim 1, characterized in that: The plastic bushing is fixedly connected to the central tube by screws.

6. The swivel chair that is easy to package and disassemble according to claim 1, characterized in that: The outer periphery of the plastic bushing is evenly distributed with several reinforcing ribs, and one end of the plastic bushing is provided with a flange.

7. The swivel chair that is easy to package and disassemble according to claim 1, characterized in that: The connecting bracket includes a concave fixing frame, with fixing arms fixed at both ends of the concave fixing frame for fixed connection with the bottom of the chair seat, and the upper end of the rotating shaft fixed at the bottom of the concave fixing frame.

8. The swivel chair that is easy to package and disassemble according to claim 7, characterized in that: Two parallel, forward-extending Y-axis elastic metal plates are fixedly fixed at the bottom of the concave fixing frame. An X-axis connecting plate is fixed at the bottom front end of the two Y-axis elastic metal plates. A rearward-extending rotating shaft fixing plate is fixed at the bottom center of the X-axis connecting plate. The upper end of the rotating shaft is fixed at the rear bottom of the rotating shaft fixing plate.

9. The swivel chair that is easy to package and disassemble according to claim 1, characterized in that: The lower end of the rotating shaft is connected to the end of the lower plastic bushing inside the central tube by a hand-tightening screw, and a washer is provided between the end of the lower plastic bushing and the hand-tightening screw.

10. The swivel chair that is easy to package and disassemble according to claim 1, characterized in that: The fixed arm is connected to the bottom of the chair seat by a hand-tightened screw.

Images