CN220423508U

CN220423508U - Foldable office chair

Info

Publication number: CN220423508U
Application number: CN202322128619.8U
Authority: CN
Inventors: 徐翀
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-08-09
Filing date: 2023-08-09
Publication date: 2024-02-02
Anticipated expiration: 2033-08-09

Abstract

The utility model relates to an office appliance, in particular to a foldable office chair, which comprises a bottom plate, a supporting plate, a leaning plate and a power shaft, wherein the bottom plate is supported on the ground, the supporting plate is arranged on the upper side of the bottom plate, a cushion is arranged on the supporting plate, the bottom plate is in transmission connection with the bottom plate through a lifting assembly, the leaning plate is rotatably connected on one side of the supporting plate through a bottom connecting shaft, a transmission worm wheel is coaxially arranged at one end of the connecting shaft, the power shaft is rotatably connected on one side of the supporting plate, the power shaft is in transmission connection with the lifting assembly at the bottom of the supporting plate through a first transmission piece, and the power shaft is in transmission connection with the transmission worm wheel through a second transmission piece.

Description

Foldable office chair

Technical Field

The utility model relates to office tools, in particular to a foldable office chair.

Background

Office chairs are chairs which are provided for convenience in daily work and social activities, and office chairs in a narrow sense are back rest chairs which are used for sitting when a person performs a desk work in a sitting posture.

In order to meet the use requirements of personnel during office work, a plurality of office chairs are needed to be used, the traditional office chairs are formed by fixedly splicing various components, a large amount of office space is needed to be occupied when the office chairs are not used, and the difficulty of daily storage is high.

Disclosure of Invention

The utility model aims to provide a foldable office chair, which is used for solving the problems that the traditional office chair is formed by fixedly splicing various components, occupies a large amount of office space when not in use, and is difficult to store in daily life.

To achieve the above object, the present utility model provides a foldable office chair comprising;

a base plate for supporting on the ground;

the support plate is arranged on the upper side of the bottom plate, a cushion is placed on the support plate, the bottom plate is in transmission connection with the bottom plate through a lifting assembly, the lifting assembly comprises two pairs of lifting connecting rods, the two pairs of lifting connecting rods are respectively arranged on two sides of the bottom of the support plate, a group of sliding seats and fixing seats are respectively arranged on the bottom plate and the support plate, and two ends of the lifting connecting rods are respectively hinged with the sliding seats and the fixing seats which are correspondingly arranged on the bottom plate and the support plate;

the backup plate is rotationally connected to one side of the support plate through a bottom connecting shaft, a back cushion is arranged on the backup plate, and a transmission worm wheel is coaxially arranged at one end of the connecting shaft;

the power shaft is rotationally connected to one side of the supporting plate, the power shaft is in transmission connection with the sliding seat at the bottom of the supporting plate through the first transmission piece, and the power shaft is in transmission connection with the transmission worm wheel through the second transmission piece.

When the lifting mechanism is used, the supporting plate is moved downwards to be stored close to the bottom plate when the lifting mechanism is in a storage state, and meanwhile the backup plate rotates to the upper side of the supporting plate, so that the occupied space of the lifting mechanism is greatly reduced.

As a further scheme of the utility model, the lifting connecting rod comprises two groups of supporting rods with middle parts connected in a rotating way.

As a further scheme of the utility model, the sliding seat comprises a connecting plate and two groups of side plates, the two groups of side plates are connected through the connecting plate, and limit grooves for sliding connection of the side plates of the corresponding sliding seat are formed in two sides of the supporting plate and the bottom plate.

As a further scheme of the utility model, the first transmission part is an external thread pipe which is coaxially and fixedly arranged on the outer side of the power shaft and is in transmission connection with a side plate of a sliding seat arranged on the supporting plate, and an internal thread cap which is used for forming screw pair transmission with the external thread pipe is fixedly arranged on the side plate of the sliding seat.

As a further scheme of the utility model, the second transmission part is a worm pipe which is coaxially and fixedly arranged at the outer side of the power shaft and forms spiral pair transmission with the transmission worm wheel.

Compared with the prior art, when the office chair is used, the power shaft can be rotated, and the externally threaded pipe and the worm pipe which are coaxially arranged on the power shaft drive the sliding seat which is correspondingly connected to slide and drive the worm wheel to rotate, so that the lifting of the supporting plate and the overturning of the backup plate are realized, and the problems that the traditional office chair is formed by fixedly splicing various parts, occupies a large amount of office space when not in use and is difficult to store in daily life are solved.

Drawings

Fig. 1 is a schematic structural view of a foldable office chair according to the present utility model.

Fig. 2 is an installation schematic diagram of the backup plate provided by the utility model.

Fig. 3 is a schematic structural diagram of a sliding seat provided by the present utility model.

In the accompanying drawings: 1. a bottom plate; 2. a support plate; 201. a cushion; 3. lifting a connecting rod; 4. a fixing seat; 5. a sliding seat; 501. a connecting plate; 502. a side plate; 503. a limiting block; 6. a power shaft; 601. an external threaded tube; 602. a worm pipe; 603. a grip; 7. a backup plate; 701. a back cushion; 702. a connecting shaft; 8. an internal thread cap; 9. and (3) driving a worm wheel.

Detailed Description

The technical scheme of the utility model is further described in detail below with reference to the specific embodiments.

As shown in fig. 1 and 2, in an embodiment of the present utility model, a foldable office chair includes a floor 1 for supporting on the ground; the support plate 2 is arranged on the upper side of the bottom plate 1, a cushion 201 is placed on the support plate, the bottom plate 1 is in transmission connection with the bottom plate 1 through a lifting assembly, the lifting assembly comprises two pairs of lifting connecting rods 3, the two pairs of lifting connecting rods 3 are respectively arranged on two sides of the bottom of the support plate 2, a group of sliding seats 5 and fixed seats 4 are respectively arranged on the bottom plate 1 and the support plate 2, and two ends of the lifting connecting rods 3 are respectively hinged with the sliding seats 5 and the fixed seats 4 which are correspondingly arranged on the bottom plate 1 and the support plate 2; the backup plate 7 is rotatably connected to one side of the support plate 2 through a bottom connecting shaft 702, a back cushion 701 is arranged on the backup plate, and a transmission worm wheel 9 is coaxially arranged at one end of the connecting shaft 702; the power shaft 6 is rotatably connected to one side of the supporting plate 2, the power shaft 6 is in transmission connection with the sliding seat 5 at the bottom of the supporting plate 2 through a first transmission piece, and the power shaft 6 is in transmission connection with the transmission worm wheel 9 through a second transmission piece;

specifically, when the utility model is stored, the supporting plate 2 is moved downwards to be stored close to the bottom plate 1, meanwhile, the backup plate 7 rotates to the upper side of the supporting plate 2, so that the occupied space of the utility model is greatly reduced, otherwise, when the utility model is actually used, the power shaft 6 can be used for driving the two pairs of lifting connecting rods 3 in the lifting assembly to rotate, so as to drive the supporting plate 2 to rise, and simultaneously, the power shaft 6 synchronously drives the transmission worm wheel 9 to rotate, so that the backup plate 7 is driven to rotate to incline, thereby realizing the unfolding of the utility model.

As shown in fig. 1, in the embodiment of the present utility model, the lifting link 3 includes two groups of support rods rotatably connected in the middle, the two groups of support rods have an X-shaped structure, and two ends of the two groups of support rods are respectively hinged with a sliding seat 5 and a fixed seat 4 mounted on the support plate 2 and the bottom plate 1;

in the utility model, a fixed seat 4 positioned on a supporting plate 2 is arranged on one side of the supporting plate 2, which is not connected with the fixed seat 4, and the fixed seat 4 on the corresponding bottom plate 1 is vertically arranged at the bottom of the fixed seat 4 on the supporting plate 2, and after the supporting plate 2 is lifted to a preset height, two groups of lifting connecting rods 3 are close to one side of the legs of a person at the moment.

As shown in fig. 1, 2 and 3, in the embodiment of the present utility model, the sliding seat 5 includes a connecting plate 501 and two sets of side plates 502, the two sets of side plates 502 are connected by the connecting plate 501, two sides of the supporting plate 2 and the bottom plate 1 are provided with limiting grooves for sliding connection of the side plates 502 of the corresponding sliding seat 5, the inner sides of the two sets of side plates 502 are provided with limiting blocks 503, and the limiting blocks 503 are slidably connected in the limiting grooves;

further, the first transmission part is an external thread pipe 601, the external thread pipe 601 is coaxially and fixedly arranged on the outer side of a power shaft 6, and is in transmission connection with a side plate 502 on one side of a sliding seat 5 arranged on a supporting plate 2, an internal thread cap 8 for forming screw pair transmission with the external thread pipe 601 is fixedly arranged on the side plate 502 of the sliding seat 5, and the power shaft 6 is rotated to drive the external thread pipe 601 on the internal thread cap to rotate, and the sliding seat 5 on the supporting plate 2 is driven by the internal thread cap 8 to slide, so that a lifting connecting rod 3 is driven to rotate and lift;

still further, the second driving member is a worm pipe 602, the worm pipe 602 is coaxially and fixedly installed at the outer side of the power shaft 6, and forms a spiral pair driving with the driving worm wheel 9.

In the present utility model, the power shaft 6 is preferably driven to rotate by human force, the end of the power shaft 6 is provided with the grip 603, and when the power shaft 6 is actually used, the rotary member can be used to drive the power shaft 6 to rotate, and the end of the power shaft 6 can be provided with the connecting seat.

In view of the above, when the office chair is in use, the power shaft 6 can be rotated, and the externally threaded pipe 601 and the worm pipe 602 which are coaxially arranged on the power shaft 6 drive the correspondingly connected sliding seat 5 to slide and drive the worm wheel 9 to rotate, so that the lifting of the supporting plate 2 and the overturning of the leaning plate 7 are realized, and the problems that the conventional office chair is formed by fixedly splicing various components, occupies a large amount of office space when not in use, and is difficult to store in daily life are solved.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

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 can be understood by those of ordinary skill in the art in a specific case.

While the preferred embodiments of the present utility model have been described in detail, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present utility model within the knowledge of those skilled in the art.

Claims

1. A foldable office chair, comprising;

a base plate for supporting on the ground;

2. A foldable office chair according to claim 1, wherein the lifting link comprises two sets of support bars pivotally connected at the middle.

3. The foldable office chair according to claim 1, wherein the sliding seat comprises a connecting plate and two groups of side plates, the two groups of side plates are connected through the connecting plate, and limit grooves for sliding connection of the side plates of the corresponding sliding seat are formed in two sides of the supporting plate and the bottom plate.

4. A foldable office chair according to claim 3, wherein the first transmission member is an externally threaded tube coaxially and fixedly mounted on the outer side of the power shaft and in transmission connection with a side plate of a sliding seat mounted on the support plate, and an internally threaded cap for forming screw pair transmission with the externally threaded tube is fixedly mounted on the side plate of the sliding seat.

5. A foldable office chair according to claim 1, wherein the second transmission member is a worm tube which is fixedly mounted coaxially on the outside of the power shaft and forms a screw pair transmission with the transmission worm wheel.