CN219249635U

CN219249635U - Stable swivel chair chassis

Info

Publication number: CN219249635U
Application number: CN202320367609.7U
Authority: CN
Inventors: 杨国伟
Original assignee: Hangzhou Zhongrui Machinery Co ltd
Current assignee: Hangzhou Zhongrui Machinery Co ltd
Priority date: 2023-03-02
Filing date: 2023-03-02
Publication date: 2023-06-27
Anticipated expiration: 2033-03-02

Abstract

The utility model discloses a stable swivel chair chassis, which comprises a swivel chair chassis main body, wherein a mounting block is arranged at the bottom end of the swivel chair chassis main body, a mounting groove is formed in the bottom end of the mounting block, support rods are uniformly arranged outside the mounting block, and one ends of the support rods are connected with the bottom end of the swivel chair chassis main body. The utility model can adjust the position of the connecting plate through the functions of the limiting groove, the extending plate and the connecting plate, thereby being applicable to the installation of swivel chair cushions with different sizes, and simultaneously, the supporting area between the whole swivel chair chassis and the swivel chair cushion is further improved through the matching of the extending plate and the connecting plate, thereby being beneficial to improving the connection stability of the extending plate and the swivel chair cushion, and simultaneously, the extending plate is conveniently fixed under the function of the positioning and adjusting mechanism, namely the fixing of the connecting plate is realized, thereby being beneficial to improving the connection stability between the connecting plate and the swivel chair cushion.

Description

Stable swivel chair chassis

Technical Field

The utility model relates to the technical field of swivel chair chassis, in particular to a stable swivel chair chassis.

Background

The chair is used as a household seat which is indispensable in daily life of people, is widely used in families, has various types, and is a type of chair which is frequently used in daily office work, and comprises a swivel chair chassis, a lifting support rod, a seat cushion and the like, wherein the swivel chair chassis is an important part arranged below a swivel chair seat cushion, the lifting of the seat cushion and the adjustment of the tilting angle of a backrest are all completed by the chassis;

in a firm swivel chair chassis of publication No. CN215304328U, including a structure main part, the structure main part includes a mounting panel, the mounting panel comprises limiting plate and locates the base of limiting plate lower extreme, base and limiting plate structure as an organic whole, the edge of limiting plate is equipped with the spacing portion of upwards perk, encloses the seatpad through the spacing portion at limiting plate edge, can provide the bearing capacity of a plurality of directions to through increasing the area of contact of chassis and seatpad, reduce the power that the unit area bore and improve the steadiness, there is following shortcoming in the above-mentioned prior art scheme: the supporting stability of the swivel chair chassis is mainly improved through the connecting part and the mounting part, but due to the fact that the connecting part is fixedly connected with the limiting plate, the mounting part can only mount the seat cushion with a single size, when the seat cushion with different sizes is required to be mounted, the chassis size needs to be replaced again, the application range of the swivel chair chassis is reduced, the practical use cost is improved, a certain improvement space exists, and an improvement scheme is provided for the swivel chair chassis.

Disclosure of Invention

The utility model aims to provide a stable swivel chair chassis, which solves the problems that the supporting range of the conventional swivel chair chassis proposed in the background art is not easy to adjust and is not easy to be suitable for swivel chair cushions with various sizes.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a firm swivel chair chassis, includes swivel chair chassis main part, the installation piece is installed to swivel chair chassis main part's bottom, and the mounting groove has been seted up to the bottom of installation piece, the bracing piece is evenly installed to the outside of installation piece, and the one end of bracing piece all is connected with swivel chair chassis main part's bottom, the spacing groove has all been seted up to swivel chair chassis main part's both sides, and the extension board is all installed to the inside of spacing groove, the guide way has all been seted up to the both sides of extension board, and the guide piece is all installed to the inside of guide way, one side of guide piece all is connected with the inside of spacing groove, the locating hole has all been evenly seted up to the inside of extension board, the positioning adjustment mechanism all is provided with to the both sides of swivel chair chassis main part bottom, the connecting plate is all installed to one side on extension board top, and the inside of connecting plate evenly has seted up first mounting hole, the second mounting hole has evenly been seted up to the inside of swivel chair chassis main part.

When the stable swivel chair chassis of the technical scheme is used, the position of the connecting plate is adjustable through the effect of the limiting groove, the extending plate and the connecting plate when the swivel chair chassis is used, so that the swivel chair chassis can be suitable for installation of swivel chair cushions of different sizes, and meanwhile, the supporting area between the whole swivel chair chassis and the swivel chair cushions is further increased through the cooperation of the extending plate and the connecting plate, and the stability of connection between the swivel chair chassis and the swivel chair cushions is improved.

Preferably, the support rods are arranged in an inclined mode, the number of the support rods is four, and the support rods are annularly distributed outside the mounting blocks.

Preferably, the positioning adjusting mechanism comprises an adjusting cylinder, the adjusting cylinder is arranged at the bottom end of the swivel chair chassis main body, a pull rod penetrates through the bottom end of the adjusting cylinder, a limiting plate is arranged at the top end of the pull rod, an extrusion spring is wound outside the pull rod at the bottom end of the limiting plate, a positioning plate is arranged at the top end of the limiting plate, and the top end of the positioning plate extends to the inside of the positioning hole.

Preferably, the guide groove and the guide block are provided with two groups, each group is provided with two groups, and the extension plate forms a left-right sliding structure through the interaction of the guide groove and the guide block and the limit groove.

Preferably, the inner shape and the size of the positioning holes are matched with the outer shape and the size of the positioning plate, two groups of positioning holes are arranged, four positioning holes are arranged in each group, and the positioning holes are distributed on the extending plate at equal intervals.

Preferably, the first mounting holes are provided with two groups, four first mounting holes are arranged in each group, the first mounting holes are symmetrically distributed with respect to the vertical central axis of the swivel chair chassis main body, four second mounting holes are arranged, and the second mounting holes are uniformly distributed on the swivel chair chassis main body.

Compared with the prior art, the utility model has the beneficial effects that:

this firm swivel chair chassis is not only applicable to the installation of not swivel chair cushion of equidimension and uses, and the supporting effect is better, through the effect of spacing groove, extension board and connecting plate, make the position of connecting plate adjustable, thereby make it be applicable to the swivel chair cushion installation of equidimension, simultaneously through the cooperation of extension board, the connecting plate, in order to further improve the holding area between whole swivel chair chassis and the swivel chair cushion, thereby be favorable to improving the steadiness that both are connected, simultaneously under the effect of location adjustment mechanism, in order to fix the extension board length that stretches out, realize the fixed in position to the connecting plate promptly, thereby be favorable to improving the connection stability between connecting plate and the swivel chair cushion, and the cooperation bracing piece, in order to further improve the bearing capacity of this swivel chair chassis main part, improve its life.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a front cross-sectional structure of the present utility model;

FIG. 2 is a schematic top view of the present utility model;

FIG. 3 is a schematic view of the structure of FIG. 1A according to the present utility model;

fig. 4 is a schematic perspective view of an extension board according to the present utility model.

Reference numerals in the drawings illustrate: 1. a swivel chair chassis body; 2. a mounting block; 3. a mounting groove; 4. a support rod; 5. a limit groove; 6. a positioning adjusting mechanism; 601. an adjustment cylinder; 602. a pull rod; 603. extruding a spring; 604. a positioning plate; 605. a limiting plate; 7. an extension plate; 8. positioning holes; 9. a connecting plate; 10. a first mounting hole; 11. a second mounting hole; 12. a guide groove; 13. and a guide block.

Description of the embodiments

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by one of ordinary skill in the art without inventive faculty, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.

Referring to fig. 1-4, an embodiment of the present utility model is provided: the stable swivel chair chassis comprises a swivel chair chassis main body 1, wherein a mounting block 2 is mounted at the bottom end of the swivel chair chassis main body 1, a mounting groove 3 is formed in the bottom end of the mounting block 2, and support rods 4 are uniformly mounted outside the mounting block 2;

the support rods 4 are obliquely arranged, four support rods 4 are arranged, and the support rods 4 are annularly distributed outside the mounting block 2;

specifically, as shown in fig. 1, in use, the supporting force of the swivel chair chassis main body 1 is dispersed by the triangular structure formed between the supporting rods 4 and the swivel chair chassis main body 1 and the mounting blocks 2, so that the supporting force of the swivel chair chassis main body 1 is further improved, and the service life of the swivel chair chassis is prolonged;

one end of the supporting rod 4 is connected with the bottom end of the swivel chair chassis main body 1, limit grooves 5 are formed in two sides of the swivel chair chassis main body 1, extension plates 7 are mounted in the limit grooves 5, guide grooves 12 are formed in two sides of the extension plates 7, and guide blocks 13 are mounted in the guide grooves 12;

two groups of guide grooves 12 and guide blocks 13 are arranged, each group is provided with two groups, and the extending plate 7 forms a left-right sliding structure through the interaction of the guide grooves 12 and the guide blocks 13 and the limit grooves 5;

specifically, as shown in fig. 2, when in use, the guide groove 12 is matched with the guide block 13 so as to limit and guide the extension plate 7, so that the horizontal movement of the extension plate 7 is more stable;

one side of the guide block 13 is connected with the inside of the limit groove 5, and the inside of the extension plate 7 is uniformly provided with positioning holes 8;

the inner shape and the size of the positioning holes 8 are matched with those of the outer shape and the size of the positioning plate 604, two groups of positioning holes 8 are arranged, four positioning holes are arranged in each group, and the positioning holes 8 are distributed on the extension plate 7 at equal intervals;

specifically, as shown in fig. 1, 2 and 4, the function of the positioning holes 8 is used to facilitate the position adjustment of the extension plate 7, so that the extension plate can adapt to the installation function of swivel chair cushions with different sizes, and the use range and practicability of the swivel chair chassis are improved;

positioning and adjusting mechanisms 6 are arranged on two sides of the bottom end of the swivel chair chassis main body 1;

the positioning adjusting mechanism 6 comprises an adjusting cylinder 601, the adjusting cylinder 601 is arranged at the bottom end of the swivel chair chassis main body 1, a pull rod 602 penetrates through the bottom end of the adjusting cylinder 601, a limiting plate 605 is arranged at the top end of the pull rod 602, an extrusion spring 603 is wound outside the pull rod 602 at the bottom end of the limiting plate 605, a positioning plate 604 is arranged at the top end of the limiting plate 605, and the top end of the positioning plate 604 extends to the inside of the positioning hole 8;

specifically, as shown in fig. 1 and fig. 3, when in use, the limiting plate 605 is pressed upwards by the elastic action of the pressing spring 603, so that the positioning plate 604 enters the positioning hole 8 to position the extension plate 7, thereby fixing the connecting plate 9, and further, the connection between the connecting plate 9 and the swivel chair cushion is more stable;

a connecting plate 9 is arranged on one side of the top end of the extension plate 7, first mounting holes 10 are uniformly formed in the connecting plate 9, and second mounting holes 11 are uniformly formed in the swivel chair chassis main body 1;

the first mounting holes 10 are arranged in two groups, four groups are arranged in each group, the first mounting holes 10 are symmetrically distributed about the vertical central axis of the swivel chair chassis main body 1, the second mounting holes 11 are arranged in four groups, and the second mounting holes 11 are uniformly distributed on the swivel chair chassis main body 1;

specifically, as shown in fig. 2, the connection plate 9 and the swivel seat cushion are installed and connected through the first installation hole 10 during use, and the swivel seat chassis main body 1 and the swivel seat cushion are installed and connected through the second installation hole 11, so that the connection tightness between the integral swivel seat chassis and the swivel seat cushion is improved, and the stability of the swivel seat chassis and the swivel seat cushion is improved.

Working principle: when the telescopic support rod is used, one end of the telescopic support rod can be installed in the telescopic support rod through the installation groove 3 so as to conveniently lift the swivel chair, in the installation process of the swivel chair chassis main body 1 and the swivel chair cushion, the pull rod 602 is pulled downwards to enable the limiting plate 605 to move downwards, the extrusion spring 603 is compressed, the positioning plate 604 is separated from the positioning hole 8, the extension plate 7 is pulled outwards to a proper position according to the size of the swivel chair cushion, the pull rod 602 is loosened, and the limiting plate 605 is reset under the elastic action of the extrusion spring 603, so that the positioning plate 604 enters the corresponding positioning hole 8, namely the extension plate 7 is fixed, and the whole swivel chair chassis main body 1 can adapt to swivel chair cushions with different sizes;

secondly, after the extension plate 7 moves to a proper position, the edge of the swivel chair cushion is buckled through the connecting plate 9, and the fastening bolts are respectively installed in the first installation holes 10 and the second installation holes 11, so that the installation and connection effect between the swivel chair chassis main body 1 and the swivel chair cushion is realized;

finally, through adjusting the position of extension board 7 to further increase the area of support between whole swivel chair chassis main part 1 and the swivel chair cushion, thereby improve the connection steadiness between the two, simultaneously through the effect of bracing piece 4, make between it and swivel chair chassis main part 1 and the installation piece 2 form triangle-shaped's structure, and disperse swivel chair chassis main part 1's bearing force, thereby further improve swivel chair chassis main part 1 bearing capacity, improve its steadiness of using, and help improving its life.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present utility model without undue burden.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A stable swivel chair chassis comprising a swivel chair chassis body (1), characterized in that: installation piece (2) are installed to the bottom of swivel chair chassis main part (1), and install mounting groove (3) have been seted up to the bottom of mounting piece (2), bracing piece (4) are evenly installed to the outside of mounting piece (2), and the one end of bracing piece (4) all is connected with the bottom of swivel chair chassis main part (1), spacing groove (5) have all been seted up to the both sides of swivel chair chassis main part (1), and extension board (7) are all installed to the inside of spacing groove (5), guide way (12) have all been seted up to the both sides of extension board (7), and guide way (13) are all installed to the inside of guide way (12), one side of guide way (13) all is connected with the inside of spacing groove (5), locating hole (8) have all been evenly seted up to the inside of extension board (7), the both sides of swivel chair chassis main part (1) bottom all are provided with location adjustment mechanism (6), connecting plate (9) are all installed to one side on extension board (7) top, and the inside of connecting plate (9) has evenly been seted up first mounting hole (10), inside of extension board (1) is evenly provided with second chassis (11).

2. A stabilized swivel chair chassis according to claim 1, wherein: the support rods (4) are obliquely arranged, the four support rods (4) are arranged, and the support rods (4) are annularly distributed outside the mounting block (2).

3. A stabilized swivel chair chassis according to claim 1, wherein: the positioning adjusting mechanism (6) comprises an adjusting cylinder (601), the adjusting cylinder (601) is arranged at the bottom end of the swivel chair chassis main body (1), a pull rod (602) penetrates through the bottom end of the adjusting cylinder (601), a limiting plate (605) is arranged at the top end of the pull rod (602), an extrusion spring (603) is wound outside the pull rod (602) at the bottom end of the limiting plate (605), a positioning plate (604) is arranged at the top end of the limiting plate (605), and the top end of the positioning plate (604) extends to the inside of the positioning hole (8).

4. A stabilized swivel chair chassis according to claim 1, wherein: the guide grooves (12) and the guide blocks (13) are respectively provided with two groups, each group is respectively provided with two groups, and the extension plate (7) forms a left-right sliding structure through the interaction of the guide grooves (12) and the guide blocks (13) and the limit grooves (5).

5. A stabilized swivel chair chassis according to claim 1, wherein: the inner shape and the size of the positioning holes (8) are matched with the outer shape and the size of the positioning plate (604), two groups of positioning holes (8) are arranged, four positioning holes are arranged in each group, and the positioning holes (8) are distributed on the extension plate (7) at equal intervals.

6. A stabilized swivel chair chassis according to claim 1, wherein: the first mounting holes (10) are arranged in two groups, four first mounting holes (10) are symmetrically distributed about the vertical central axis of the swivel chair chassis main body (1), four second mounting holes (11) are arranged, and the second mounting holes (11) are uniformly distributed on the swivel chair chassis main body (1).