CN217161556U

CN217161556U - Chair supporting structure

Info

Publication number: CN217161556U
Application number: CN202122664659.5U
Authority: CN
Inventors: 朱月新
Original assignee: Zhejiang Kemi Bear Technology Co ltd
Current assignee: Zhejiang Kemi Bear Technology Co ltd
Priority date: 2021-11-02
Filing date: 2021-11-02
Publication date: 2022-08-12
Anticipated expiration: 2031-11-02

Abstract

The utility model discloses a chair supporting structure, which comprises a chair foot component and a chair rod component, wherein the chair rod component comprises at least one vertical chair rod, and the lower end of the chair rod is connected with the chair foot component; the chair leg assembly is provided with an extension seat which extends upwards and the upper end of the extension seat exceeds the upper end surface of the chair leg assembly, and the extension seat and the chair leg assembly are integrally formed; the extension seat is configured to be in inserting fit with a single chair rod, the upper end of the extension seat is provided with a slot, and the lower end of the chair rod is inserted in the slot so as to keep the chair rod in a stable supporting potential state; the extension seat and the chair leg component are integrally formed; therefore, the thickness of the joint of the chair leg assembly and the chair rod is correspondingly expanded, the length of the inserting part between the lower end of the chair rod and the chair leg assembly can be effectively increased, and the structural strength of the joint of the chair rod and the chair leg assembly is further improved; the support stability is better.

Description

Chair supporting structure

Technical Field

The utility model relates to the field of seats, in particular to a chair supporting structure.

Background

The existing child lifting seat generally comprises a seat, a chair back, a chair rod and a base, wherein the seat and the chair back are respectively arranged on the chair rod through a lifting slide seat, and the lifting slide seat can be adjusted up and down along the chair rod so that the seat and the chair back can be adjusted up and down; the chair rod is a long rod which is longitudinally arranged, and most of the existing mounting structures of the chair rod and the base are as follows: the base is provided with a slot, the lower end of the chair rod is inserted in the slot, and then the chair rod is fixedly connected with the base usually through a screw or a welding mode; the connection structure has disadvantages in that: the thickness of the base is limited, and the depth of the slot is smaller than that of the base; the length of the inserting part between the chair rod and the base is shorter; even if the chair rod is fixedly connected with the base through threads or welding, stress is mainly concentrated on the inserting part of the chair rod after the chair bears the weight, so that the connection strength between the chair rod and the base is lower, and the connection part of the chair rod and the base is easy to loosen or break after long-term use, thereby seriously affecting the use safety of the chair; especially for the study chair, because child's nature for the intensity of study chair more needs to be ensured, the head of a family can the direction purchase and use.

In the prior art, the structural strength of the seat is enhanced by arranging a double-seat-rod structure, and the double-seat rods can disperse stress, so that the support strength of the seat is higher; but the connecting structure of the lower end of the chair rod and the base still adopts the traditional connecting mode. Or a metal mounting plate is welded and fixed between the bottoms of the two chair rods; then the mounting plate is fixedly connected with the base, so that the structure is stable; although the connecting structure solves the defect of unstable structure, a metal mounting plate is additionally arranged, so that the overall weight is undoubtedly increased, and the packing cost is increased; and the welding and grinding process between the mounting plate and the chair rod is added, so that the processing cost is higher.

Disclosure of Invention

The utility model overcomes the defects in the prior art and provides a chair support structure with simple structure and better stability; the extending seat extending upwards is arranged on the chair leg assembly, and the lower end of the chair rod is inserted and matched in the extending seat; the extension seat and the chair leg component are integrally formed; therefore, the thickness of the joint of the chair leg assembly and the chair rod is correspondingly expanded, the length of the inserting part between the lower end of the chair rod and the chair leg assembly can be effectively increased, and the structural strength of the joint of the chair rod and the chair leg assembly is further improved; the support stability is better.

The technical scheme of the utility model is realized like this:

a chair supporting structure comprises a chair leg assembly and a chair rod assembly, wherein the chair rod assembly comprises at least one vertical chair rod, and the lower end of the chair rod is connected to the chair leg assembly; the chair leg assembly is provided with an extension seat which extends upwards and the upper end of the extension seat exceeds the upper end surface of the chair leg assembly, and the extension seat and the chair leg assembly are integrally formed; the extension seat is configured to be matched with a single chair rod in an inserting mode, the upper end of the extension seat is provided with a slot, and the lower end of the chair rod is inserted into the slot so that the chair rod can keep a stable supporting potential state.

Preferably, the chair leg component is made of plastic, and the extension seat and the chair leg component are integrally formed by injection molding. The extension part and the chair leg component are of an integrated structure, so that the thickness of the chair leg component can be changed and expanded, and the length of the inserting part between the lower end of the chair rod and the chair leg component is effectively increased; and the production and processing are more convenient, and the cost is saved.

Preferably, a metal sleeve is embedded in the extension seat, and the metal sleeve and the chair leg assembly are integrally injection-molded. The structural strength of the joint can be further increased.

Preferably, the longitudinal length of the extension seat is between 5 and 15 cm. So that the lower end of the chair rod has enough insertion length.

Preferably, the chair rod assembly comprises two chair rods arranged in a mirror image manner, and the chair foot assembly is correspondingly provided with two extending seats; the two chair rods are sequentially connected to the two extending seats. The two chair rods are arranged, so that stress can be further dispersed; further increasing the load on the seat.

Preferably, a decorative cover is arranged between the chair rod component and the extension seat, and a decorative outer sleeve sleeved with the chair rod is arranged on the decorative cover; the decorative cover is sleeved on the chair rod from top to bottom and covers the chair leg component downwards; the decorative cover covers the extension seat and part of the chair rod. Can hide the connecting trace between the chair rod and the extension seat, so that the whole chair is simpler and more beautiful, and meets the modern aesthetic requirements.

Preferably, the periphery of the decorative cover is provided with buckles extending downwards at intervals, and the chair leg assembly is correspondingly provided with clamping grooves; the buckle is clamped in the clamping groove so that the decorative cover is connected to the chair leg assembly. The clamping buckle and the clamping groove are adopted for clamping connection, so that the connection is convenient and fast.

Preferably, the slot extends downwards from the upper end of the extension seat, and the slot does not penetrate through the chair leg assembly; a bearing part for bearing the chair rod is formed between the bottom of the slot and the bottom surface of the chair leg component; the bottom of the chair rod is propped against the bearing part and the chair rod and the bearing part are fixedly connected by screws. The bearing part can effectively support the chair rod, and because of the existence of extension part, the thickness of bearing part also can corresponding thickening, and stability is better.

Preferably, the chair rod is a flat tube, and a sealing cover for connecting a screw is welded in the lower end of the chair rod; the screw is sequentially arranged on the bearing part and the sealing cover in a penetrating way from the lower part of the base to fix the chair rod and the base. The seat is connected by screws, so that the connection is stable, and the safety of the seat is effectively improved; and the screw penetrates from the lower part of the chair leg component, so that the appearance is beautified.

Adopted above-mentioned technical scheme the utility model discloses a design departure point, theory and beneficial effect are:

firstly, the chair support structure of the utility model is provided with an extending seat extending upwards on the chair leg component, the upper end of the extending seat is provided with a slot, and the lower end of the chair rod is inserted and matched in the extending seat; the extension seat and the chair leg component are integrally formed; therefore, the thickness of the joint of the chair leg assembly and the chair rod is correspondingly expanded, the length of the inserting part between the lower end of the chair rod and the chair leg assembly can be effectively increased, and the structural strength of the joint of the chair rod and the chair leg assembly is further improved; the support stability is better.

Furthermore, the chair rod is not welded with a mounting plate for increasing the contact area with the chair legs, so that the weight can be reduced, the processing procedures can be saved, namely, the steps of welding and polishing at the welding position are not needed, the packaging is facilitated, and the packaging amount is increased.

Secondly, the chair leg assembly is made of plastic, and the extension seat and the chair leg assembly are integrally formed by injection molding; the integral injection molding is adopted, so that the production and the processing are more convenient; the cost is saved; a metal sleeve is embedded in the extension seat, and the metal sleeve and the chair leg assembly are integrally formed by injection molding; the structural strength of the extension base is increased without substantially affecting the weight.

Moreover, the chair rod assembly comprises two chair rods, and a double chair rod structure is adopted, so that stress can be further dispersed, and load can be enhanced; and the structure of the utility model is adopted, so that only two chair rods are required to be respectively inserted into the corresponding extension seats, and then the screws are installed.

In addition, the slot does not penetrate through the chair leg component; a bearing part for bearing the chair rod is formed between the bottom of the slot and the bottom surface of the chair leg component; the bottom of the chair rod is propped against the bearing part and the chair rod and the bearing part are fixedly connected by screws. The bearing part can effectively support the chair rod, and the thickness of the bearing part can be thickened correspondingly due to the extension part, so that the stability is further improved.

Drawings

FIG. 1 is a schematic perspective view of a chair rod assembly and a chair leg assembly connected in an embodiment of the present invention;

FIG. 2 is an exploded view of the embodiment of the present invention in which a chair rod is connected to a chair leg assembly;

FIG. 3 is a cross-sectional view of the lower end of the chair rod inserted into the extension seat according to the embodiment of the present invention;

FIG. 4 is a schematic bottom perspective view of the leg assembly of the present invention;

FIG. 5 is a schematic perspective view of the lower end of the chair rod in the embodiment of the present invention;

FIG. 6 is a schematic perspective view of the lower end of the leg assembly in the embodiment of the present invention;

fig. 7 is an internal sectional view of an extension base according to an embodiment of the present invention.

The figures are numbered: a chair leg assembly 1; a chair rod assembly 2; a chair rod 3; an extension seat 4; a slot 5; a receiving part 6; a cover 7; a decorative cover 8; a bayonet 9; a card slot 10; a decorative cover 11; a mounting hole 12; a metal sleeve 13.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. 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 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 implementation manner of the utility model is as follows:

as shown in fig. 1-7, the present invention provides a chair support structure, which comprises a chair leg assembly 1 and a chair rod assembly 2; the chair rod component 2 comprises at least one vertical chair rod 3, and the lower end of the chair rod 3 is connected to the chair leg component 1; the chair leg component 1 is correspondingly provided with an extending seat 4 extending upwards, the extending seat 4 and the chair leg component 1 are integrally formed, and the upper end of the extending seat 4 exceeds the upper end surface of the chair leg component 1; the extension seat 4 is configured to be inserted and matched with a single chair rod 3, a slot 5 with an upward opening is arranged on the extension seat 4, and the lower end of the chair rod 3 is inserted into the slot 5 so as to keep the chair rod 3 in a stable supporting potential state. The lower end of the chair rod 3 is inserted and matched in the extending seat 4 by arranging the extending seat 4 extending upwards on the chair leg component 1; the extension seat 4 and the chair leg component 1 are integrally formed; therefore, the thickness of the chair leg component 1 is correspondingly expanded, the length of the inserting part between the lower end of the chair rod 3 and the chair leg component 1 can be effectively increased, and the connecting strength between the chair rod 3 and the chair leg component 1 is further improved; the structure is simple and reliable.

Specifically, the method comprises the following steps: as shown in FIGS. 1-2, the chair rod assembly 2 of the present invention comprises two spaced chair rods 3; two extending seats 4 are arranged on the left side and the right side of the upper end surface of the chair leg component 1 in a mirror image manner; the two chair rods 3 are respectively inserted in the two extending seats 4. And the two chair rods 3 are used for installing the chair seat and the chair back of the chair, and adopt a double-chair-rod structure, so that the stress can be dispersed, the supporting load of the chair is further enhanced, and the structural stability is improved.

As shown in fig. 2-4, the chair leg assembly 1 is made of plastic, and the extension seat 4 and the chair leg assembly 1 are integrally formed by injection molding, so that the production and the processing are more convenient; the installation between the extension seat 4 and the chair foot component 1 does not need to be considered additionally, and the production cost is saved. The chair rod 3 is a flat tube made of metal, the interior of the chair rod is hollow, and the overall weight can be reduced; and the length direction of the section of the chair rod 3 is consistent with the front and back direction of the chair leg assembly 1, so that the supporting strength of the chair rod 3 is higher, and the strength of the chair is improved. As shown in fig. 7, a metal sleeve 13 with a matched contour is embedded in the extension seat 4, and the metal sleeve 13 and the chair leg assembly 1 are integrally injection-molded, so that the structural strength of the extension seat 4 can be increased; furthermore, in the utility model discloses in, the longitudinal length of extension seat 4 be 10cm for the lower extreme of chair pole 3 has sufficient grafting length, guarantees structural strength.

After the chair rod 3 is inserted into the extension seat 4, the chair rod 3 is fixedly connected with the chair leg assembly 1 by screws. Specifically, the slot 5 extends downwards from the upper end of the extension seat 4, the slot 5 does not penetrate through the chair leg component 1, and a bearing part 6 for bearing the chair rod 3 is formed between the bottom of the slot 5 and the lower surface of the chair leg component 1; as shown in fig. 5 and 6, a cover 7 for connecting screws is welded and fixed to the inside of the lower end of the chair rod 3, and the lower surface of the cover 7 is close to the lower surface of the chair rod 3; the bottom of the bearing part 6 is correspondingly provided with a mounting hole 12 which penetrates through the bearing part up and down; after the chair rod 3 is inserted into the slot 5, the lower end of the chair rod 3 is propped against the bearing part 6; the chair rod 3 and the chair leg assembly 1 are fixed by screw tightening by passing a screw through the mounting hole 12 from the lower part of the chair leg assembly 1 and connecting and fixing on the cover 7; the seat is connected by screws, so that the connection is stable, and the safety of the seat is effectively improved; and the screw penetrates from the lower part of the chair leg component 1, so that the appearance is beautified.

As shown in fig. 1-5, after the connection between the chair rod 3 and the chair leg assembly 1 is completed, a decorative cover 8 is disposed at the connection between the chair leg assembly 1 and the chair rod 3 to cover the connection trace and beautify the appearance, specifically: the decorative cover 8 is of a strip-shaped panel structure, the decorative cover 8 is sleeved on the two chair rods 3 from top to bottom, a decorative outer sleeve 11 extending upwards along the length direction of the chair rods 3 is correspondingly arranged at the sleeved position of the decorative cover 8 and the chair rods 3, and the decorative outer sleeve 11 can be just sleeved on the chair rods 3; then the decoration cover 8 covers the upper surface of the chair leg component 1 downwards, the periphery of the decoration cover 8 is provided with buckles 9 at intervals, and the chair leg component 1 is correspondingly provided with clamping grooves 10; the buckle 9 is clamped in the clamping groove 10 so that the decorative cover 8 is connected to the chair leg component 1 conveniently and quickly. And the decorative coat 11 can also play a role in increasing the structural strength and dispersing the stress. As shown in fig. 1, after the installation, the decorative cover 11 covers the extension seat 4 and a portion of the seat post 3, so as to hide the connection trace between the seat post 3 and the extension seat 4, so that the whole body is more compact and beautiful, and meets the modern aesthetic requirements.

To sum up, through the utility model discloses a chair bearing structure, through be equipped with the extension seat 4 that upwards stretches out on chair foot subassembly 1, then can the diversion extend chair foot subassembly 1's thickness, increased the length of grafting part between 3 lower extremes of chair pole and the chair foot subassembly 1, improved the joint strength between chair pole 3 and the chair foot subassembly 1 then.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art should understand that without departing from the spirit of the present invention, the person skilled in the art should not inventively design the similar structural modes and embodiments to the technical solution, and all shall fall within the protection scope of the present invention.

Claims

1. A chair supporting structure is characterized in that: the chair comprises a chair leg assembly and a chair rod assembly, wherein the chair rod assembly comprises at least one vertical chair rod, and the lower end of the chair rod is connected to the chair leg assembly; the chair leg assembly is provided with an extension seat which extends upwards and the upper end of the extension seat exceeds the upper end surface of the chair leg assembly, the chair leg assembly is made of plastic, and the extension seat and the chair leg assembly are integrally formed by injection molding; a metal sleeve is embedded in the extension seat, and the metal sleeve and the chair leg assembly are integrally injection molded; the extension seat is configured to be matched with a single chair rod in an inserting mode, the upper end of the extension seat is provided with a slot, and the lower end of the chair rod is inserted into the slot so that the chair rod can keep a stable supporting potential state.

2. The chair support structure of claim 1, wherein: the longitudinal length of the extension seat is between 5 and 15 cm.

3. The chair support structure of claim 1, wherein: the chair rod assembly comprises two chair rods arranged in a mirror image manner, and the chair leg assembly is correspondingly provided with two extending seats; the two chair rods are sequentially connected to the two extending seats.

4. The chair support structure of claim 1, wherein: a decorative cover is arranged between the chair rod component and the extension seat, and a decorative coat sleeved with the chair rod is arranged on the decorative cover; the decorative cover is sleeved on the chair rod from top to bottom and covers the chair leg assembly downwards; the decorative cover covers the extension seat and part of the chair rod.

5. The chair support structure of claim 4, wherein: the periphery of the decorative cover is provided with buckles extending downwards at intervals, and the chair leg component is correspondingly provided with clamping grooves; the buckle is clamped in the clamping groove so that the decorative cover is connected to the chair leg assembly.

6. The chair support structure of claim 1, wherein: the slot extends downwards from the upper end of the extension seat and does not penetrate through the chair leg assembly; a bearing part for bearing the chair rod is formed between the bottom of the slot and the bottom surface of the chair leg component; the bottom of the chair rod is propped against the bearing part and the chair rod and the bearing part are fixedly connected by screws.

7. The chair support structure of claim 6, wherein: the chair rod is a flat tube, and a sealing cover for connecting a screw is welded in the lower end of the chair rod; the screw is sequentially arranged on the bearing part and the sealing cover in a penetrating way from the lower part of the base to fix the chair rod and the base.