Detachable swivel chair leg

Abstract

A detachable swivel chair foot, comprising: a center sleeve for mounting a seat; a support foot arranged in a plurality of circumferential rows on the outer peripheral wall of the center sleeve; the swivel chair foot further comprises a detachable structure arranged between the support foot and the center sleeve, and the detachable structure is used to detachably arrange the support foot on the center sleeve. The detachable swivel chair foot is detachable between the support foot and the center sleeve, which is convenient for storing and transporting the swivel chair foot, reduces the storage and transportation cost of the product, and improves the efficiency of the enterprise to a certain extent.

Description

Technical Field

[0001] This utility model belongs to the technical field of swivel chairs, specifically relating to a detachable swivel chair leg. Background Technology

[0002] With the continuous progress of society, people's lives have been greatly changed. In the field of modern office furniture and home furniture, swivel chairs, as a type of seat with a rotating function, are widely used in various scenarios such as offices, home studies, and game rooms due to their convenience and comfort. As the core supporting component of the swivel chair, the structural design of the swivel chair legs is directly related to the stability and service life of the swivel chair.

[0003] Currently, most mainstream swivel chair legs on the market are designed as a single piece, manufactured through processes such as injection molding, die casting, or welding. The problem is that because the supporting legs of a single swivel chair are arranged circumferentially and extend outwards, the overall size is large and occupies a lot of space. When storing in a warehouse, a large amount of storage space needs to be reserved, which occupies valuable warehousing resources and increases warehousing costs. When packing and transporting, a large amount of transportation space is required, which limits the number of single swivel chair legs that can be transported at one time, increases transportation costs, and is not conducive to companies controlling product costs.

[0004] In recent years, some swivel chair legs have adopted a detachable design. For example, patent document CN104665317A discloses a swivel chair leg and its assembly method, including a sleeve with a sleeve hole and five long leg tubes evenly distributed around the outer periphery of the sleeve and extending outward. One end of each long leg tube has a roller mounting hole, and five outwardly extending plugs are evenly distributed around the outer periphery of the sleeve. The free end of each plug has a insertion hole arranged radially along the sleeve. The other end of each long leg tube forms a hollow insertion post for insertion into the insertion hole. A metal foot is located below the sleeve. The legs consist of hollow tubes, with five connecting plates radiating outwards and extending radially along the outer circumference of the hollow tubes. The hollow pins of the long legs are inserted into the plug, and after the hollow tubes in the metal legs are inserted into the sleeve holes of the sleeves, the connecting plates are attached to the bottom surface of the plug. The connecting plates, the plug, and the hollow pins are fixedly connected by screws. The problem is that the assembly structure of the swivel chair legs is complex, and the assembly process is cumbersome. It requires professional tools or professional personnel to complete the assembly quickly, which is not conducive to ordinary users assembling it themselves, and will affect the user experience to some extent.

[0005] Therefore, further improvements are needed. Utility Model Content

[0006] The purpose of this utility model is to overcome at least one of the shortcomings of the prior art and provide a detachable swivel chair leg, in which the support leg and the central sleeve are detachable from each other, which facilitates the storage and transportation of the swivel chair leg, reduces the storage and transportation costs of the product, and improves the efficiency of the enterprise to a certain extent.

[0007] To achieve the above objectives, the technical solution provided by this utility model embodiment is as follows: A detachable swivel chair leg, comprising: A central sleeve for mounting the seat; Support feet, wherein the support feet are several in number and arranged circumferentially on the outer peripheral wall of the central sleeve; The swivel chair leg also includes a detachable structure, which is located between the support leg and the central sleeve. The detachable structure allows the support leg to be detachably mounted on the central sleeve. The detachable structure includes a mounting slot on the central sleeve and a mounting plug on the support foot. The mounting plug is located at the upper end of the support foot. There are two sets of mounting slots on the outer peripheral wall of the central sleeve and on the left and right sides of the mounting plug. When the mounting plug is inserted into the mounting slot, the support foot is mounted on the central sleeve. When the mounting plug is pulled out of the mounting slot, the support foot is detached from the central sleeve.

[0008] The shape of the vertical projection of the mounting plug matches the shape of the outer peripheral wall of the central sleeve, and the distance between the inner bottom surfaces of the two sets of mounting slots is equivalent to the width of the mounting plug.

[0009] The swivel chair legs also include a locking structure, which locks the support legs onto the central sleeve. The locking structure includes a locking screw hole on the central sleeve, a locking through hole on the support leg, and a locking component that mates with the locking screw hole. The locking screw hole horizontally penetrates the side wall of the central sleeve, and the locking through hole horizontally penetrates the mounting plug. When the mounting plug is inserted into the mounting slot, the locking through hole corresponds to the locking screw hole. The locking component passes through the locking through hole and is screwed into the locking screw hole, thereby locking the support leg onto the central sleeve.

[0010] The swivel chair legs also include a limiting structure, which enables the support legs to be limited and installed on the central sleeve. The limiting structure includes a limiting plane disposed on the central sleeve and a limiting component disposed on the support foot. The limiting plane is disposed at the top of the mounting slot, and the limiting component is disposed at the top of the mounting plug. When the mounting plug is inserted into the mounting slot from top to bottom, the bottom surface of the limiting component abuts against the limiting plane, so that the support foot is limited and installed on the central sleeve.

[0011] The swivel chair legs also include a guide structure, which guides the support legs to be installed on the central sleeve. The guiding structure includes a guide protrusion on the central sleeve and a guide groove on the support foot. The guide protrusion is located on the outer peripheral wall of the central sleeve and extends along the height direction of the central sleeve. The guide groove is located on the side wall of the mounting plug facing the central sleeve and corresponds to the guide protrusion. When the mounting plug is inserted into the mounting slot, the guide protrusion extends into the guide groove and slides back and forth along its length direction, so that the support foot is guided and installed on the central sleeve.

[0012] The vertical projection of the guide protrusion and guide groove is semi-circular, square, or triangular.

[0013] The support feet are four in number and are evenly distributed circumferentially on the outer wall of the central sleeve. Each support foot includes an extension and a support. The extension is inclined downward and the distance between it and the central sleeve gradually increases from top to bottom. The support is located at the lower end of the extension and is perpendicular to the horizontal plane. The mounting plug is located at the upper end of the extension.

[0014] The supporting part and the extension part have an included angle A, where 120°≤A≤130°.

[0015] The swivel chair legs also include pipe plugs or casters. The support part is provided with mounting holes, which are located on the lower end of the support part. The pipe plugs or casters are mounted on the support legs through the mounting holes.

[0016] The beneficial effects of this utility model are as follows: This utility model, through the adoption of the above-mentioned technical solution for the swivel chair legs, achieves the connection or separation of the support legs and the central sleeve through a detachable structure. This makes the overall volume of the swivel chair legs small when stored and occupies little space. Only a small storage space needs to be reserved when storing them in the warehouse, thus reducing the storage resources occupied and reducing storage costs to a certain extent. When packing and transporting, only a small transportation space is required, increasing the number of swivel chair legs transported at one time, further reducing transportation costs and improving the production efficiency of enterprises.

[0017] The swivel chair legs using the above-mentioned technical solution have a simple detachable structure. The assembly process of the support legs and the central sleeve is simple and quick, and can be completed quickly without the need for professional personnel. This makes it easy for ordinary users to assemble the chair themselves, resulting in a better user experience.

[0018] By adopting the above-mentioned technical solution for the swivel chair legs, the central sleeve and support legs are manufactured separately during the production process. When a component is defective, only that component needs to be scrapped, avoiding the material waste caused by the overall scrapping of the integrated swivel chair leg due to local defects and reducing the consumption of raw materials. On the other hand, in the use and maintenance process, users can replace the damaged support leg separately without replacing the entire swivel chair leg, thus extending the overall service life of the swivel chair leg. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a swivel chair leg according to an embodiment of the present invention.

[0020] Figure 2 This is a cross-sectional view of the swivel chair legs according to an embodiment of the present invention.

[0021] Figure 3 for Figure 2 Enlarged view of part B.

[0022] Figure 4 This is a schematic diagram of the separation of the support foot from the central sleeve in one embodiment of the present invention.

[0023] Figure 5 for Figure 4 Enlarged view of part C.

[0024] Figure 6 This is a schematic diagram of the separation of the support foot from the central sleeve in one embodiment of the present invention.

[0025] Figure 7 for Figure 6 Enlarged view of part D.

[0026] Figure 8 This is a front view of the support foot according to an embodiment of the present invention. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0028] See Figure 1-8The detachable swivel chair legs include a central sleeve 1, support legs 2, and a detachable structure. In this embodiment, the central sleeve 1 has a tube hole, into which a tube column or a rotating reset device is inserted to mount the chair onto the swivel chair legs. Preferably, there are four support legs 2, evenly distributed circumferentially on the outer wall of the central sleeve 1. The four support legs 2 form a four-point support, creating a stable support plane and preventing the swivel chair legs from tipping over accidentally. The detachable structure is located between the support legs 2 and the central sleeve 1, and includes mounting slots 101 and mounting inserts 201. There are two sets of mounting slots 101, located on the outer wall of the central sleeve 1 and on the left and right sides of the mounting inserts 201. The mounting inserts 201 are located on the support legs 2 and at their upper ends. When the mounting inserts 201 are inserted into the mounting slots 101, their left and right edges abut against the inner bottom surfaces of the two sets of mounting slots 101, respectively. The mounting plug 201 is clamped in both directions to prevent the support leg 2 from wobbling in the horizontal direction. At the same time, the insertion and removal of the mounting plug 201 and the mounting slot 101 can be achieved by controlling the clearance to achieve an interference fit. After insertion, they form a tight fit to prevent loosening between them, so that the support leg 2 is firmly installed on the central sleeve 1. When the mounting plug 201 is pulled out of the mounting slot 101, the support leg 2 can be removed from the central sleeve 1 by simply tapping it with a tool. This allows the support leg 2 to be connected or separated from the central sleeve 1, making the overall volume of the swivel chair legs small when stored and occupying little space. Only a small storage space needs to be reserved when storing it in the warehouse, which reduces the storage resources occupied and reduces storage costs to a certain extent. When packing and transporting, only a small transportation space is needed, which increases the number of swivel chair legs transported at one time and reduces transportation costs to a certain extent, thereby improving the production efficiency of the enterprise.

[0029] The swivel chair legs using the above-mentioned technical solution have a simple detachable structure. The assembly process of the support leg 2 and the central sleeve 1 is simple and quick, and can be completed quickly without the need for professional personnel. This makes it easy for ordinary users to assemble themselves, especially suitable for consumers' self-assembly needs in online sales scenarios. It reduces users' reliance on professional installation services, lowers users' time costs, and the good assembly and maintenance convenience can improve users' satisfaction with the swivel chair product, resulting in a better user experience.

[0030] By adopting the above-mentioned technical solution for the swivel chair legs, the central sleeve 1 and the support leg 2 are manufactured separately during the production process. When a certain component is defective, only that component needs to be scrapped, which avoids the waste of materials caused by the overall scrapping of the integrated swivel chair leg due to local defects and reduces the consumption of raw materials. On the other hand, in the use and maintenance process, users can replace the damaged support leg 2 separately without replacing the entire swivel chair leg, which extends the overall service life of the swivel chair leg.

[0031] Furthermore, in this embodiment, the shape of the vertical projection of the outer peripheral wall of the central sleeve 1 is preferably circular, and the shape of the vertical projection of the mounting plug 201 is preferably arc-shaped and matches the shape of the outer peripheral wall of the central sleeve 1. This ensures that when the mounting plug 201 is inserted into the mounting slot 101, a surface contact is formed between the mounting plug 201 and the outer peripheral wall of the central sleeve 1, improving the connection stability between the support leg 2 and the central sleeve 1 and increasing the load-bearing capacity of the swivel chair leg to a certain extent. The distance between the inner bottom surfaces of the two sets of mounting slots 101 is slightly smaller than the width of the mounting plug 201, avoiding the support leg 2 from shaking due to excessive gap between the mounting slot 101 and the mounting plug 201. This is understood by those skilled in the art.

[0032] Furthermore, the swivel chair legs also include a locking structure. Specifically, in this embodiment, the locking structure includes locking screw holes 102, locking through holes 202, and locking components 3. Each central sleeve 1 has at least four locking screw holes 102, which are located on the same horizontal plane and arranged circumferentially, horizontally penetrating the side wall of the central sleeve 1. Each support leg 2 has a locking through hole 202, which horizontally penetrates the mounting insert 201. The locking component 3 is preferably an internal hexagon set screw. When the mounting insert 201 is inserted into the mounting slot 101, the locking through hole 202 corresponds to the locking screw hole 102, and the locking component 3 passes through the locking through hole 202 and is screwed into the locking screw hole 102, thereby locking the support leg 2 onto the central sleeve 1. Through the above technical solution, the support leg 2 is locked onto the central sleeve 1. The support leg 2 can be locked onto the central sleeve 1, preventing the support leg 2 from becoming loose due to reduced friction between the support leg 2 and the central sleeve 1 caused by material aging or wear. At the same time, the locking component 3 adopts an anti-loosening design, such as with spring washers and anti-loosening adhesive, so that the nuts will not loosen even in the case of frequent rotation and vibration of the swivel chair, further ensuring the structural stability between the support leg 2 and the central sleeve 1. Despite the addition of the locking structure, the disassembly process is still simple and convenient. Only the corresponding tool needs to be used to unscrew the locking component 3 to pull the installation plug 201 out of the installation slot 101. Compared with the traditional welding connection method, its flexibility for maintenance and replacement is retained, while taking into account the dual requirements of firm installation and convenient disassembly, which will be understood by those skilled in the art.

[0033] Furthermore, the swivel chair leg also includes a limiting structure. Specifically, in this embodiment, the limiting structure includes a limiting plane 103 and a limiting component 203. The limiting plane 103 is disposed on the central sleeve 1 and located at the top of the mounting slot 101. The limiting component 203 is cuboid and disposed on the support leg 2 and located at the top of the mounting plug 201. When the mounting plug 201 is inserted into the mounting slot 101 from top to bottom, the bottom surface of the limiting component 203 abuts against the limiting plane 103, so that the support leg 2 is limited and installed on the central sleeve 1. Through the above technical solution, when assembling the swivel chair leg, the user can confirm that the mounting plug 201 has been installed in place without visual inspection, without the need for additional measurement or adjustment, thus improving the assembly efficiency of the swivel chair leg. When the limiting components 203 of each support leg 2 abut against the limiting plane 103, it can be ensured that the installation height of all support legs 2 is consistent, avoiding the swivel chair leg from wobbling due to inconsistent heights of the support legs 2. This is understood by those skilled in the art.

[0034] Furthermore, the swivel chair legs also include a guide structure. Specifically, in this embodiment, the guide structure includes guide protrusions 104 and guide grooves 204. Each central sleeve 1 has at least four guide protrusions 104, which are evenly arranged circumferentially. The guide protrusions 104 are semi-circular and are located on the outer peripheral wall of the central sleeve 1, extending along the height direction of the central sleeve 1. The guide grooves 204 are semi-circular and are located on the support foot 2. The guide grooves 204 are located on the side wall of the mounting plug 201 facing the central sleeve 1 and correspond to the guide protrusions 104. The semi-circular guide structure has low processing cost. The insertion and removal are smooth. When the mounting plug 201 is inserted into the mounting slot 101, the guide protrusion 104 extends into the guide groove 204 and slides back and forth along its length, so that the support leg 2 is guided and installed on the central sleeve 1. Through the above technical solution, when assembling the swivel chair leg, it is only necessary to align the guide groove 204 with the guide protrusion 104, and the mounting plug 201 can be smoothly inserted into the mounting slot 101 along the extension direction of the guide protrusion 104. There is no need for the user to repeatedly and deliberately align the position between the mounting plug 201 and the mounting slot 101, which further improves the assembly efficiency of the swivel chair leg, as understood by those skilled in the art.

[0035] Furthermore, in this embodiment, the support foot 2 includes an extension 21 and a support 22. Specifically, the extension 21 is inclined downwards and the distance between it and the central sleeve 1 gradually increases from top to bottom, which can expand the support radius of each support foot 2 and improve the stability of the swivel chair foot to a certain extent. The load-bearing force of the seat is transferred to the support 22 along the inclined direction of the extension 21, avoiding the load-bearing force from being concentrated at the connection between the central sleeve 1 and the extension 21, thereby improving the load-bearing capacity and service life of the support foot 2. The support 22 is located at the lower end of the extension 21 and is perpendicular to the horizontal plane, that is, the lower end surface of the support 22 can form a stable surface contact with the ground or other horizontal planes, avoiding slippage caused by the inclination of the support 22, and improving the stability of the swivel chair when placed. The mounting plug 201 is vertically arranged at the upper end of the extension 21 and parallel to the outer peripheral wall of the central sleeve 1, as understood by those skilled in the art.

[0036] Furthermore, in this embodiment, there is an included angle A between the support part 22 and the extension part 21. Specifically, if the included angle A is less than 120°, the lateral distance between each support part 22 will be reduced, resulting in a decrease in the support radius of the swivel chair and a decrease in its stability; if the included angle A is greater than 130°, the lateral distance between each support part 22 will be too large, resulting in the support radius of the swivel chair exceeding the actual needs and increasing its space occupation, making it easy for users to bump their feet when using it. A is preferably 125°, so that the swivel chair can balance stability and space utilization, as understood by those skilled in the art.

[0037] Furthermore, in this embodiment, the swivel chair leg also includes a tube plug 4, and the support portion 22 is provided with a mounting hole 23. Specifically, the mounting hole 23 is preferably a common hole and is provided on the lower end of the support portion 22. The tube plug 4 is preferably made of rubber material and its mounting part is interference-fitted with the mounting hole 23 to realize the installation of the tube plug 4 on the support leg 2. Through the above technical solution, the support portion 22 is prevented from directly contacting the ground, preventing the ground from being scratched, especially wooden floors and tile floors; the material properties of the tube plug 4 can buffer the vibration during the use of the swivel chair, reducing the impact between the support portion 22 and the ground. The friction between the floor and the ground creates noise, improving user comfort; the plug 4 increases the friction between the support 22 and the ground, preventing the swivel chair from sliding accidentally and improving stability; or the swivel chair legs may also include casters, with the mounting hole 23 preferably being a screw hole, and the caster having a stud, which is screwed into the mounting hole 23 to install the caster on the support leg 2. Through the above technical solutions, the rolling structure of the caster greatly reduces the resistance between the swivel chair and the ground when the swivel chair needs to be moved, allowing the user to push the swivel chair without effort, improving the ease of use of the swivel chair; Since both the pipe plug 4 and the casters are installed through the mounting holes 23 of the support 22, users can replace the pipe plug 4 and the casters themselves according to changes in usage scenarios, without having to replace the entire swivel chair leg, thus making the product more versatile.

[0038] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A detachable swivel chair leg, characterized in that, include: A central sleeve (1) is used to install a seat; Support feet (2), the support feet (2) are several and arranged circumferentially on the outer peripheral wall of the central sleeve (1); The swivel chair leg also includes a detachable structure, which is located between the support leg (2) and the central sleeve (1). The detachable structure enables the support leg (2) to be detachably mounted on the central sleeve (1). The detachable structure includes a mounting slot (101) on the central sleeve (1) and a mounting plug (201) on the support foot (2). The mounting plug (201) is located at the upper end of the support foot (2). There are two sets of mounting slots (101) on the outer peripheral wall of the central sleeve (1) and on the left and right sides of the mounting plug (201). When the mounting plug (201) is inserted into the mounting slot (101), the support foot (2) is mounted on the central sleeve (1). When the mounting plug (201) is pulled out from the mounting slot (101), the support foot (2) is detached from the central sleeve (1).

2. The detachable swivel chair legs according to claim 1, characterized in that, The shape of the vertical projection of the mounting plug (201) matches the shape of the outer peripheral wall of the central sleeve (1), and the distance between the inner bottom surfaces of the two sets of mounting slots (101) is equivalent to the width dimension of the mounting plug (201).

3. The detachable swivel chair legs according to claim 1, characterized in that, The swivel chair legs also include a locking structure, which locks the support leg (2) onto the central sleeve (1); The locking structure includes a locking screw hole (102) on the central sleeve (1), a locking through hole (202) on the support foot (2), and a locking component (3) that mates with the locking screw hole (102). The locking screw hole (102) horizontally penetrates the side wall of the central sleeve (1), and the locking through hole (202) horizontally penetrates the mounting plug (201). When the mounting plug (201) is inserted into the mounting slot (101), the locking through hole (202) corresponds to the locking screw hole (102). The locking component (3) passes through the locking through hole (202) and is screwed into the locking screw hole (102), so that the support foot (2) is locked on the central sleeve (1).

4. The detachable swivel chair legs according to claim 1, characterized in that, The swivel chair legs also include a limiting structure, which enables the support leg (2) to be limited and installed on the central sleeve (1); The limiting structure includes a limiting plane (103) set on the central sleeve (1) and a limiting component (203) set on the support foot (2). The limiting plane (103) is set at the top of the mounting slot (101), and the limiting component (203) is set at the top of the mounting plug (201). When the mounting plug (201) is inserted into the mounting slot (101) from top to bottom, the bottom surface of the limiting component (203) abuts against the limiting plane (103), so that the support foot (2) is limited and installed on the central sleeve (1).

5. The detachable swivel chair legs according to claim 1, characterized in that, The swivel chair legs also include a guide structure, which guides the support legs (2) to be installed on the central sleeve (1); The guide structure includes a guide protrusion (104) on the central sleeve (1) and a guide groove (204) on the support foot (2). The guide protrusion (104) is located on the outer peripheral wall of the central sleeve (1) and extends along the height direction of the central sleeve (1). The guide groove (204) is located on the side wall of the mounting plug (201) facing the central sleeve (1) and corresponds to the guide protrusion (104). When the mounting plug (201) is inserted into the mounting slot (101), the guide protrusion (104) extends into the guide groove (204) and slides back and forth in its length direction, so that the support foot (2) is guided and installed on the central sleeve (1).

6. The detachable swivel chair legs according to claim 5, characterized in that, The vertical projection of the guide protrusion (104) and guide groove (204) is semi-circular, square or triangular.

7. The detachable swivel chair leg according to any one of claims 1-6, characterized in that, The support feet (2) are four in number and are evenly distributed around the outer wall of the central sleeve (1). The support feet (2) include an extension (21) and a support (22). The extension (21) is inclined downward and the distance between it and the central sleeve (1) gradually increases from top to bottom. The support (22) is located at the lower end of the extension (21) and is perpendicular to the horizontal plane. The mounting plug (201) is located at the upper end of the extension (21).

8. The detachable swivel chair legs according to claim 7, characterized in that, The support portion (22) and the extension portion (21) have an included angle A, where 120°≤A≤130°.

9. The detachable swivel chair legs according to claim 7, characterized in that, The swivel chair legs also include a pipe plug (4) or a caster. The support leg (2) is provided with a mounting hole (23). The mounting hole (23) is located on the lower end of the support part (22). The pipe plug (4) or the caster is mounted on the support leg (2) through the mounting hole (23).

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