CN214016772U

CN214016772U - Fixed folding chair

Info

Publication number: CN214016772U
Application number: CN202120174879.7U
Authority: CN
Inventors: 游霞
Original assignee: Chongqing Heyanling Business Center
Current assignee: CHONGQING JUBAO TEACHING EQUIPMENT CO.,LTD.
Priority date: 2021-01-21
Filing date: 2021-01-21
Publication date: 2021-08-24
Anticipated expiration: 2031-01-21

Abstract

The utility model discloses a fixed folding chair, including stand, seat and back, the seat rotates to be installed in the stand upper end, and its rear end is articulated with the back, and the back has along this articulated position downwardly extending's supporting part, and the supporting part lower extreme rotates and is connected with the slip subassembly, have the spout that sets up along vertical direction on the stand, imbed in this spout with the slip subassembly slidable. This fixed folding chair relies on self action of gravity automatic transformation to fold condition when not using, and not only the seat can incline backward, and the back also can lean forward to the space of passageway between increase chair and the front and back desk, for the traditional folding chair of same size, the design is compacter, and occupation space is littleer, makes things convenient for personnel to pass, has effectively improved indoor space's utilization ratio.

Description

Fixed folding chair

Technical Field

The utility model relates to a chair, in particular to a fixed folding chair.

Background

In public places such as a stairway classroom and a large conference room, it is common to fix a table and a chair to a floor in advance in order to keep the room clean and arrange more seats in a limited space. In the desk and chair, the seat board is usually foldable, namely when not in use, the seat board can be manually operated to turn backwards or be inclined backwards and folded under the action of self gravity, and when a user sits on the desk and chair, the seat board can be flatly tilted, so that the desk and chair is relatively convenient.

At present, for such folding chairs, the backrest is usually fixed and mounted on the base or integrated in front of the rear row of tables, and even in the case of no sitting, the space between the rear row of tables and the front row of backrest still appears very tight.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a fixed folding chair can further reduce shared space under fold condition, improves space utilization, makes things convenient for personnel current.

In order to achieve the above purpose, the utility model discloses technical scheme as follows:

the utility model provides a fixed folding chair, includes stand, seat and back, the seat rotates to be installed in the stand upper end, and its rear end is articulated with the back, and the back has along this articulated position downwardly extending's supporting part, and the supporting part lower extreme rotates and is connected with sliding assembly, have the spout that sets up along vertical direction on the stand, sliding assembly imbeds in this spout slidable.

Structure more than adopting, when the folding chair does not use, be in fold condition under self action of gravity, seat inclines backward promptly, the back is owing to articulate with the seat, the slip subassembly of supporting part lower extreme slides to its lower extreme position along the spout, make the back wholly lean forward, thereby effectively increase the width of passageway between chair and the place ahead desk, also make the interval increase between back and the back row desk simultaneously, and then form the passageway, can make things convenient for personnel to pass more, be convenient for sit in or manage indoor environment, and when the front-seat does not have the man-hour, for traditional folding chair, the back row just sits personnel and can obtain wider field of vision. When a person sits on the seat, the seat part is flattened under the action of external force, the backrest is driven to incline backwards at the same time, the use state is changed, and after the person sits on the seat, the folding chair automatically restores the folding state.

Preferably, the seat includes the bedplate and is used for supporting the underframe of this bedplate, the underframe middle part is installed by the position behind and is rotated complex pivot with the stand, and the articulated shaft parallel with the pivot is installed to the rear end, the back includes the support and installs the backplate on this support, the supporting part sets up on this support, is equipped with the hinge hole that suits with the articulated shaft in the middle part of support. This structure can be easily manufactured and allows the related functions to be simply and reliably implemented.

Preferably, the support frame is provided with support arms extending upwards along the outer edges of two sides of the back plate so as to ensure reliable support for the back plate and the back of a human body and improve comfort.

Preferably, the support is equipped with the mount pad in support portion lower extreme position, the slip subassembly is including rotating the connecting axle of connection on this mount pad and fixing the sliding shaft at this connecting axle distal end horizontally, is equipped with the limiting plate in one side of sliding shaft towards the mount pad, and this limiting plate and stand outer wall laminating adopt such design, can ensure that the slip subassembly slides smoothly in the spout to avoid inside slip subassembly to expose, ensure good appearance quality.

Preferably, the slide assembly is fitted with a rubber cushion at the lower side of the slide shaft to reduce friction and noise during sliding.

Preferably, the seat board and the back board are distributed with air holes to further improve the comfort.

Preferably, the lower end of the upright post is provided with a support to facilitate fixing the upright post to the ground.

Has the advantages that:

when not using, rely on self action of gravity automatic transformation to fold condition, not only the seat can incline backward, and the back also can lean forward to increase the space of passageway between chair and the front and back desk, for the traditional folding chair of equidimension, the design is compacter, and occupation space is littleer, makes things convenient for personnel to pass, has effectively improved the utilization ratio of interior space.

Drawings

FIG. 1 is a schematic diagram of an exemplary construction of an embodiment of a fixed folding chair according to the present invention;

FIG. 2 is a schematic structural view of the fixed folding chair shown in FIG. 1 with the seat plate and the back plate hidden;

FIG. 3 is a perspective view of FIG. 2 taken in another view direction;

FIG. 4 is a cross-sectional view taken along A-A of FIG. 2;

FIG. 5 is a schematic structural view of the bottom frame of FIG. 2;

FIG. 6 is a schematic structural view of the column of FIG. 2;

FIG. 7 is a schematic structural view of the stent of FIG. 2;

FIG. 8 is a schematic view of the fixed folding chair of FIG. 1 in a folded configuration;

fig. 9 is a reference view of the fixed folding chair shown in fig. 1 in a use state when the fixed folding chair is used with a table.

Detailed Description

The present invention will be further described with reference to the following examples and accompanying drawings.

Referring to fig. 1, the fixed folding chair comprises a vertical upright post 1, a seat 2 rotatably mounted at the upper end of the upright post 1, and a backrest 3 located at the rear of the seat 2, wherein the seat 2 comprises a seat plate 21 and a bottom frame 22, the backrest 3 comprises a back plate 31 and a support 32, the seat plate 21 and the back plate 31 are both made of plastic materials with flexibility and zero gravity, and are designed according to human body curve profiling, air holes a are uniformly distributed on the surface, comfort is good, the bottom frame 22 and the support 32 are made of aluminum alloy materials and serve as frameworks for supporting the seat plate 21 and the back plate 31, and the seat plate 21 and the back plate 31 are respectively fixed on the bottom frame 22 and the support 32 through screws.

Fig. 2 and 3 show the main structure of the fixed folding chair after the seat plate 21 and the back plate 31 are hidden, and fig. 5, 6 and 7 show the detailed structure of the bottom frame 22, the upright 1 and the bracket 32.

As can be seen from fig. 2 to 7, the position where the bottom frame 22 is connected to the upright 1 is located at the rear region of the middle of the lower surface of the bottom frame 22, the rear end of the bottom frame is hinged to the bracket 32, the bracket 32 is provided with a support part 3a extending downward along the hinged position, the lower end of the support part 3a is rotatably connected with the sliding assembly 4, the rear side of the upright 1 is provided with a sliding slot 11 arranged along the vertical direction, and the sliding assembly 4 is embedded in the sliding slot 11 and can slide along the sliding slot 11.

In order to realize the above connection, a rotating shaft 23 and a hinge shaft 24 are provided on the bottom surface of the bottom frame 22, which are respectively engaged with the upright 1 and the bracket 32, the rotating shaft 23 and the hinge shaft 24 are both arranged along the horizontal direction, the rotating shaft 23 is located at the rear position of the middle part of the bottom frame 22, and the hinge shaft 24 is located at the rear end of the bottom frame 22. Accordingly, the upper end of the column 1 is provided with a rotation shaft hole 13 engaged with the rotation shaft 23, and the middle portion of the bracket 32 is provided with a hinge hole 34 for receiving the hinge shaft 24.

In order to ensure the strength, in the present embodiment, the upright column 1 is made of steel, and a support 12 made of aluminum alloy material is installed at the bottom of the upright column to facilitate fixing to the ground.

As shown in fig. 7, the bracket 32 has a Y-shaped structure, the middle part of which is bent backward, the hinge hole 34 protrudes forward from the lower part of the bent position, and the bracket 32 forms arms 33 extending upward and inclined forward at both sides of the bent position to support the outer edges of both sides of the back plate 31.

Referring to fig. 4 and 7, in the present embodiment, the mounting seat 35 is disposed at a lower end of the support portion 3a of the support frame 32, the sliding assembly 4 is composed of a connecting shaft 41, a sliding shaft 42, a limiting plate 43 and a rubber cushion 44, wherein one end of the connecting shaft 41 is hinged to the mounting seat 35, the sliding shaft 42 is fixed at an end of the connecting shaft 41 far away from the mounting seat 35 and is horizontally disposed along a direction perpendicular to the connecting shaft 41, the limiting plate 43 is disposed at a side of the sliding shaft 42 facing the mounting seat 35, the rubber cushion 44 is disposed at a lower side of the sliding shaft 42 and is fixed to the limiting plate 43, after the sliding assembly 4 is installed in the sliding chute 11, the sliding shaft 42 and the rubber cushion 44 are disposed inside the sliding chute 11, the limiting plate 43 is attached to an outer wall of the upright post 1 at an outer edge of the sliding chute 11, and an overall profile of the sliding chute 11 is in a T-shaped structure to facilitate installation of the sliding assembly 4.

As shown in fig. 8, when no person is seated, the fixed folding chair is in a folded state, that is, the seat plate 21 and the bottom frame 22 are turned backwards around the rotating shaft 23 under the action of self gravity to be in an inclined posture, the support portion 3a slides to the lower end of the sliding groove 11 along with the sliding component 4, because the support 32 is hinged with the rear end of the bottom frame 22, the back plate 31 and the support 32 are integrally inclined forwards, when the person is seated, the seat plate 21 is turned flat, and simultaneously, the support 32 is linked, the support portion 3a and the sliding component 4 slide upwards, the backrest 3 is integrally inclined backwards, and is unfolded to a use state, after the person is seated, the seat portion 2 and the backrest 3 automatically return to the folded state under the action of self gravity.

Fig. 9 is a using state diagram of the fixed folding chair used in cooperation with the table 5, and it can be seen that, in the folded state, the width of the channel between the chair and the front and rear tables 5 is increased obviously, so that the chair is convenient for the personnel to pass through, the space utilization rate is effectively improved, and the visual field of the personnel sitting on the rear row is improved obviously after the chair is folded.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.

Claims

1. Fixed folding chair, including stand (1), seat (2) and back (3), its characterized in that: seat (2) rotate to be installed in stand (1) upper end, and its rear end is articulated with back (3), and back (3) have along this articulated position downwardly extending's supporting part (3a), and supporting part (3a) lower extreme rotates and is connected with sliding assembly (4), have spout (11) along vertical direction setting on stand (1), embedding in this spout (11) of sliding assembly (4) slidable.

2. The fixed folding chair of claim 1, wherein: seat (2) include bedplate (21) and underframe (22) that are used for supporting this bedplate (21), underframe (22) middle part is installed by the position behind and is rotated complex pivot (23) with stand (1), and articulated shaft (24) parallel with pivot (23) are installed to the rear end, back (3) include support (32) and install backplate (31) on this support (32), supporting part (3a) set up on this support (32), are equipped with hinge hole (34) that suit with articulated shaft (24) at the middle part of support (32).

3. The fixed folding chair of claim 2, wherein: the support (32) is provided with support arms (33) extending upwards along the outer edges of two sides of the back plate (31).

4. The fixed folding chair of claim 2, wherein: support (32) are equipped with mount pad (35) in supporting part (3a) lower extreme position, slip subassembly (4) are including rotating connecting axle (41) on this mount pad (35) and fix sliding shaft (42) at this connecting axle (41) distal end horizontally, are equipped with limiting plate (43) in one side of sliding shaft (42) towards mount pad (35), and this limiting plate (43) and stand (1) outer wall laminating.

5. The fixed folding chair of claim 4, wherein: the sliding component (4) is provided with a rubber cushion (44) at the lower side of the sliding shaft (42).

6. The fixed folding chair as claimed in any one of claims 2 to 5, characterized in that: the seat plate (21) and the back plate (31) are distributed with air holes (a).

7. The fixed folding chair as claimed in any one of claims 1 to 5, characterized in that: the lower end of the upright post (1) is provided with a support (12).