CN215913892U - Detachable chair leg of office chair - Google Patents

Abstract

The utility model discloses a detachable chair leg of an office chair, which comprises a chair leg base part and chair legs, wherein the center position of the chair leg base part is provided with a jack, a plurality of connecting arms extending towards the peripheral direction are uniformly distributed on the chair leg base part, and the number of the chair legs corresponds to that of the connecting arms; one end of each chair leg is provided with a convex part, and the end surface of each connecting arm far away from the corresponding jack is provided with a mounting hole matched with the convex part in a mounting way; the bulge is provided with a taper, the mounting hole is provided with an inner conical surface matched with the taper of the bulge, the bulge is provided with an external thread, and the mounting hole is internally provided with an internal thread in the same form; during installation, the chair legs are twisted to enable the external threads of the protruding portions to be in running fit with the internal threads of the installation holes, the protruding portions enter the installation holes, and the protruding portions are in compression fit with the conical surfaces of the installation holes. The office chair can be disassembled, the chair legs are divided into the chair leg base parts and the chair legs, the packaging volume of the chair during packaging can be reduced, and the transportation cost is saved; and the hand clamping is not easy to occur in the installation process, and the operation safety is good.

Description

Detachable chair leg of office chair

Technical Field

The utility model relates to the field of seats, in particular to a detachable chair leg of an office chair.

Background

Most of the five-claw-shaped chair seats below the seats of the existing office chairs are of an integrated structure, or are large or heavy, so that the five-claw-shaped chair seats are very inconvenient to move in the storage and transportation process, occupy large space, consume large storage and transportation resources, and increase the storage and transportation cost. In recent market, detachable office chair foot seats are also available, so that the occupied space is reduced during storage and transportation, and the storage and transportation cost is reduced, but the structure needs to be detached or installed by using a special installation tool through screws, so that a user needs to waste much time for mounting or detaching, more troubles are brought to users or transporters, most of the detachable chair feet are plug-in structures, the user is easy to clamp hands during self-installation, and hidden dangers exist in safety.

CN201020123493.5, the chinese utility model discloses an "office chair leg seat", which comprises a base and a plurality of protrusions at the outer edge, the end of the protrusion has a level outer edge, and the central part of the outer edge is provided with a concave hole; the head ends of the chair legs are provided with parallel outer edges, and the central part of the outer edges is provided with a convex part; the convex part can be tightly inserted into the concave hole; it is characterized in that the side part of the convex part is provided with a lock hole; the convex part is provided with an elastic clamping tongue; the elastic clamping tongue can be clamped into the lock hole. The chair leg is fixed by the elastic clamping tongue or the marble limiting device, so that the chair leg can be conveniently detached and separated by bare hands and can be rapidly and firmly installed by bare hands. Therefore, the packaging bag can be quickly disassembled and separated during storage and transportation, so that the occupied space is reduced, and the packaging bag can be quickly and conveniently installed and fixed during use. Although the chair leg structure can be used for quickly and conveniently installing and fixing the chair legs, the chair leg structure is easy to loosen after being used for a long time due to the insertion structure; and the human body is easy to be carelessly clamped between the base part of the chair leg and the chair leg in the installation process, so that the hands are injured, and the safety factor is not high.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art, and provides a detachable chair leg of an office chair, which enables a user to detach and assemble an office chair leg seat by bare hands without any installation tool so as to detach, separate, package and transport during storage and transportation, reduce the packaging volume, save storage and transportation resources, reduce the storage and transportation cost, and ensure that the chair leg is more compact and firm after connection and has better safety during installation.

The technical scheme of the utility model is realized as follows:

a detachable chair leg of an office chair comprises a chair leg base and chair legs, wherein a jack is arranged at the center of the chair leg base, a plurality of connecting arms extending towards the peripheral direction are uniformly distributed on the chair leg base, and the number of the chair legs corresponds to that of the connecting arms; one end of each chair leg is provided with a convex part, and the end surface of the connecting arm far away from the jack is provided with a mounting hole matched with the convex part in mounting; the mounting hole is provided with an inner conical surface matched with the taper of the bulge, the bulge is provided with an external thread, and the mounting hole is internally provided with an internal thread in the same form; during installation, the chair legs are twisted to enable the external threads of the protruding portions to be in running fit with the internal threads of the installation holes, the protruding portions enter the installation holes, and the protruding portions are in compression fit with the conical surfaces of the installation holes.

The office chair can be disassembled, the chair legs are divided into the chair leg base parts and the chair legs, the packaging volume of the chair during packaging can be reduced, and the transportation cost is saved; and the chair legs are rotatably connected with the base parts of the chair legs through threads, and the joints of the chair legs and the base parts of the chair legs are in taper fit, so that the chair legs are easy and labor-saving to connect, the connection is tighter after installation, hands are not easy to clamp in the installation process, and the operation safety is good.

Preferably, the protruding part is a circular truncated cone protruding from the middle position of the end surface of the chair leg towards the connecting arm, and the diameter of the protruding part is reduced from the end close to the chair leg towards the connecting arm.

Preferably, the external thread is provided on an outer surface of the projection.

Preferably, the taper of the conical surfaces in the convex part and the mounting hole is Morse taper. And the Mohs taper is adopted, so that the stability is high after the protruding part is matched with the mounting hole, and the sealing property is better.

Preferably, an elastic buckle and a buckle hole are arranged between the chair leg and the connecting arm, the elastic buckle and the buckle hole are in clamping fit to limit the protrusion to be separated from the connecting arm, the elastic buckle is arranged on one of the chair leg or the connecting arm, and the buckle hole is arranged on the other of the connecting arm or the chair leg.

Preferably, the elastic buckle is arranged on the end surface of the chair leg with the bulge, and the buckle hole is correspondingly arranged on the end surface of the connecting arm with the mounting hole. The elastic buckle effectively prevents the chair leg from being reversed and separated after the chair leg is connected with the chair leg base part.

The design starting point, the idea and the beneficial effects of the utility model adopting the technical scheme are as follows:

1, save the cost of transportation, can divide into detachable chair foot basal portion and chair foot with the chair foot to can unpack the separation packing and reduce the packing volume when warehousing and transportation, make the transportation become convenient, high-efficient, the cost is reduced.

2, easily installation, the security is high, and the user need not specific instrument installation, only need with chair foot and chair foot basal portion normal running fit can, and through pivoted connected relation, need not to cup joint, difficult tong, the installation is simple and safe.

3, the chair foot firm in connection after the installation passes through screw thread and taper fit through bulge and mounting hole for the chair foot combines closely and firmly after the dress, still is equipped with buckle device, does not worry to drop.

Drawings

FIG. 1 is a perspective view of a chair leg attached to a base of the chair leg in an embodiment of the present invention;

FIG. 2 is a schematic perspective view of the embodiment of the present invention showing the base of the chair leg and the chair leg not connected;

FIG. 3 is a schematic perspective view of a chair leg according to an embodiment of the present invention;

FIG. 4 is a perspective view of a chair foot base according to an embodiment of the present invention.

The figures are numbered: a chair leg base 1; a chair leg 2; a jack 3; a connecting arm 4; a projection 5; a mounting hole 6; an inner conical surface 7; an external thread 8; an internal thread 9; an elastic buckle 10; a spring plate 10 a; a chuck 10 b; a snap hole 11.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

In the description of the present invention, the term "at least one" means one or more than one unless explicitly defined otherwise. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The specific embodiment of the utility model is as follows:

as shown in figures 1-4, the utility model provides a detachable chair leg of an office chair, which comprises a chair leg base 1 and a chair leg 2, wherein the chair leg 2 is detachably connected with the chair leg base 1.

As shown in fig. 1 and 2, a jack 3 is disposed at the middle position of the chair foot base 1, the jack 3 is used for connecting an air rod installed on a chair, 5 connecting arms 4 extending towards the peripheral direction are uniformly distributed on the chair foot base 1, the connecting arms 4 uniformly surround the jack 3, each connecting arm 4 is correspondingly connected with a chair foot 2, the chair feet 2 and the connecting arms 4 are connected and fixed in a rotating manner, and the specific connection mode is as follows:

as shown in fig. 3 and 4, a protruding portion 5 protruding outward is disposed at a middle position of an end surface of a connection end of the chair leg 2 and the connection arm 4, the protruding portion 5 is a circular truncated cone, the protruding portion 5 has a taper, and a diameter of the protruding portion 5 gradually decreases from the end of the chair leg toward the connection arm 4; the end surface of the connecting arm 4 far away from the jack 3 is correspondingly provided with a mounting hole 6 matched with the bulge part 5 in mounting, and an inner conical surface 7 matched with the taper of the bulge part 5 is arranged in the mounting hole 6; the conicity of the convex part 4 and the conicity of the conical surface 7 in the mounting hole are Morse conicity, so that the convex part 4 and the mounting hole 6 are combined more tightly and stably, and a connecting gap is effectively eliminated; the outer surface of the bulge part 5 is also provided with a circle of external threads 8, and a circle of internal threads 9 with the same form are correspondingly arranged in the mounting hole 6, so that the bulge part 5 is rotatably connected with the mounting hole 6 through threads.

An elastic buckle 10 is arranged below the end face of the chair leg 2 with the convex part 5, the elastic buckle 10 comprises an elastic sheet 10a and a clamping head 10b, the elastic sheet 10a is arranged on the end face of the connecting end of the chair leg 2 and the connecting arm 4, and the clamping head 10b protrudes outwards from the end face of the chair leg; the end face of the connecting arm with the mounting hole 6 is correspondingly provided with a clamping hole 11, and the elastic clamp 10 is clamped and matched with the clamping hole 11.

When the seat is packed and transported, the chair leg base 1 and the chair legs 2 can be separately packed and transported, so that the packing volume is reduced, and the transportation cost is saved; when a user installs the chair by himself, the chair leg 2 is controlled only, after the protruding part 5 is aligned with the installation hole 6, the chair leg 2 is twisted to enable the external thread 8 of the protruding part 5 to be in running fit with the internal thread 9 of the installation hole 6, the chair leg 2 rotates for a circle, then the buckle 10b of the elastic buckle 10 is clamped into the buckle hole 22, and then the installation is completed, at the moment, the conical surface between the protruding part 5 and the installation hole 6 is in pressing fit, the chair leg 2 is firmly fixed in the installation hole, the connection is tight, the falling is not easy to occur, and the chair leg can be dismounted only by using large force during dismounting; this can dismantle chair foot is satisfying detachable simultaneously, its mounting means simple structure, and easy operation adopts screw thread and taper fit for chair foot 2 is more firm after the dress, and has solved the easy tong problem of cup jointing dismantlement chair foot, and the security is better.

Claims (6)

1. The utility model provides a chair foot dismantled of office chair which characterized in that: the chair comprises a chair foot base and chair feet, wherein the center of the chair foot base is provided with a jack, a plurality of connecting arms extending towards the peripheral direction are uniformly distributed on the chair foot base, and the number of the chair feet corresponds to that of the connecting arms; one end of each chair leg is provided with a convex part, and the end surface of the connecting arm far away from the jack is provided with a mounting hole matched with the convex part in mounting; the mounting hole is provided with an inner conical surface matched with the taper of the bulge, the bulge is provided with an external thread, and the mounting hole is internally provided with an internal thread in the same form; during installation, the chair legs are twisted to enable the external threads of the protruding portions to be in running fit with the internal threads of the installation holes, the protruding portions enter the installation holes, and the protruding portions are in compression fit with the conical surfaces of the installation holes.

2. A detachable leg for an office chair as claimed in claim 1, wherein: the bulge is a round table protruding towards the connecting arm from the middle position of the end face of the chair leg, and the diameter of the bulge is reduced towards the connecting arm from the end close to the chair leg.

3. A detachable leg for an office chair as claimed in claim 2, wherein: the external thread is arranged on the outer surface of the bulge.

4. A detachable leg for an office chair as claimed in claim 1, wherein: the conicity of the conical surfaces in the convex part and the mounting hole is Morse conicity.

5. A detachable leg for an office chair as claimed in claim 1, wherein: the chair comprises a chair leg and a connecting arm, and is characterized in that an elastic buckle and a buckle hole are arranged between the chair leg and the connecting arm, the elastic buckle and the buckle hole are in clamping fit to limit the protruding portion to be separated from the connecting arm, the elastic buckle is arranged on one of the chair leg or the connecting arm, and the buckle hole is arranged on the other of the connecting arm or the chair leg.

6. A detachable chair leg of an office chair as claimed in claim 5, characterized in that: the elastic buckle is arranged on the end surface of the chair leg with the protruding part, and the buckle hole is correspondingly arranged on the end surface of the connecting arm with the mounting hole.

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