CN215456679U

CN215456679U - Auditorium chair with turnover backrest

Info

Publication number: CN215456679U
Application number: CN202120470272.3U
Authority: CN
Inventors: 黄孝艳
Original assignee: Guangdong Dibang Furniture Co ltd
Current assignee: Guangdong Dibang Furniture Co ltd
Priority date: 2021-03-04
Filing date: 2021-03-04
Publication date: 2022-01-11
Anticipated expiration: 2031-03-04

Abstract

The utility model discloses an auditorium chair with a turnover backrest, which comprises a bottom plate, wherein two support plates are welded on the outer wall of the bottom plate, the outer wall of one side of the bottom plate is connected with a left armrest box through a bolt, the outer wall of the other side of the bottom plate is connected with a right armrest box through a bolt, a chair back is arranged between the left armrest box and the right armrest box and is positioned at the top of the bottom plate, a left shaft is welded on the outer wall of one side of the chair back, and a right shaft is welded on the outer wall of the other side of the chair back. The utility model discloses utilize the back of the chair to rotate with left handrail case and right handrail case and be connected, rethread locking plate carries out the locking to the ratchet with the right axle welded of the back of the chair, realizes that the back of the chair can turn over a book and fixed effect for angle between the back of the chair of auditorium chair and the bottom plate can be adjusted, and then makes to sit more comfortable on the auditorium chair, and the back of the chair turns over simultaneously and can also cover the seatpad on the bottom plate when rolling over with the bottom plate is parallel, prevents that the seatpad of auditorium chair from falling the dust.

Description

Auditorium chair with turnover backrest

Technical Field

The utility model relates to the technical field of auditorium chairs, in particular to an auditorium chair with a folding backrest.

Background

The auditorium chair consists of seat, back, arm rests and legs. The standing legs and the handrails are generally integrated to form a firmly installed handrail frame. The chair is suitable for places such as auditoriums, movie theaters, auditoriums and reporting halls, has a good sight line when meeting and watching performances, is convenient to maintain and clean, and is comfortable to use, so that people are not easy to fatigue.

The auditorium chair in the prior art does not have the function of turning over the backrest, so that the best and comfortable sitting posture cannot be adjusted on the auditorium chair, and the auditorium chair does not have the function of containing, so that the auditorium chair is inconvenient to store articles. Therefore, there is a need to provide an auditorium chair with a foldable backrest to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects that the prior art does not have the functions of a turnover backrest and does not have the storage function, and provides an auditorium chair with the turnover backrest.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides an auditorium chair with turn over a back, includes the bottom plate, the bottom outer wall welding of bottom plate has two extension boards, there is left handrail case one side outer wall of bottom plate through bolted connection, there is right handrail case the opposite side outer wall of bottom plate through bolted connection, be provided with the back of the chair between left side handrail case and the right handrail case, the back of the chair is located the top of bottom plate, the welding of one side outer wall of the back of the chair has left axle, the welding of the opposite side outer wall of the back of the chair has right axle, left axle passes through the bearing with left handrail case and is connected, right axle passes through the bearing with right handrail case and is connected, the welding of one end of right axle has the ratchet, there is the installation shell one side inner wall of right side handrail case through bolted connection, the ratchet is located inside the installation shell, the top outer wall of installation shell is pegged graft and is had the locking board, locking board and ratchet looks adaptation.

Furthermore, a fixed plate is welded on the inner wall of one side of the right armrest box, a guide pillar is welded on the outer wall of the top of the locking plate, and a stop block is welded on the top end of the guide pillar in a penetrating mode through the fixed plate.

Further, the torsional spring has been cup jointed to the outside of left side axle, the outer wall welding of left side axle has the rotary disk, the welding of one side inner wall of left side handrail case has the fixed disk, peg graft respectively in the inside of fixed disk and rotary disk at the both ends of torsional spring.

Furthermore, a spring is sleeved outside the guide pillar and is positioned between the fixing plate and the locking plate.

Furthermore, the outer wall of one side of the right armrest box is rotatably connected with a poking plate through a shaft, a connecting hole is formed in one end of the poking plate, a connecting column is welded on the outer wall of one side of the locking plate, the connecting column is connected inside the connecting hole in a sliding mode, and a rubber sleeve is sleeved at one end, away from the locking plate, of the poking plate.

Furthermore, the top outer wall of the left armrest box and the top outer wall of the right armrest box are both connected with cover plates through hinges, and seat cushions are arranged on the top outer walls of the bottom plates.

Furthermore, a supporting plate is welded on the outer wall of the bottom of the supporting plate, and a mounting hole is formed in the outer wall of the top of the supporting plate.

The utility model has the beneficial effects that:

1. through the locking plate and the ratchet that set up, utilize the back of the chair to rotate with left handrail case and right handrail case and be connected, rethread locking plate carries out the locking to the right axle welded ratchet with the back of the chair, realize the back of the chair and can turn over a and fixed effect, make the back of the chair of auditorium chair and the angle between the bottom plate adjust, and then make to sit more comfortable on the auditorium chair, the back of the chair turns over simultaneously and can also cover the seatpad on the bottom plate when rolling over with the bottom plate is parallel, prevent that the seatpad of auditorium chair from falling the dust.

2. Through the stirring plate that sets up, utilize the spliced pole sliding connection of locking plate one side to stir the connecting hole inside of plate for press down stirring plate and can realize breaking away from between locking plate and the ratchet, consequently realized adjusting convenient effect to the back of the chair.

3. Through the left handrail case and the right handrail case that set up, pass through hinge connection apron respectively at the top of left handrail case and right handrail case for article can be deposited to left handrail case and right handrail incasement portion, have consequently realized that the auditorium chair has the effect of accomodating the function.

Drawings

Fig. 1 is a schematic view of an overall structure of an auditorium chair with a foldable backrest according to the present invention;

FIG. 2 is a schematic cross-sectional view of an auditorium chair with a foldable backrest according to the present invention;

fig. 3 is an enlarged view of the auditorium chair with the foldable backrest in the position a.

In the figure: the structure comprises a base plate 1, a left armrest box 2, a right armrest box 3, a cover plate 4, a seat cushion 5, a chair back 6, a left shaft 7, a right shaft 8, a ratchet wheel 9, a mounting shell 10, a fixing plate 11, a guide pillar 12, a locking plate 13, a spring 14, a toggle plate 15, a rubber sleeve 16, a connecting hole 17, a supporting plate 18, a supporting plate 19, a mounting hole 20, a rotating disc 21, a torsion spring 22, a fixing disc 23 and a connecting column 24.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-3, an auditorium chair with a turnover backrest comprises a bottom plate 1, two support plates 18 welded on the outer wall of the bottom plate 1, a left armrest box 2 connected on the outer wall of one side of the bottom plate 1 through a bolt, a right armrest box 3 connected on the outer wall of the other side of the bottom plate 1 through a bolt, a chair back 6 arranged between the left armrest box 2 and the right armrest box 3, the chair back 6 positioned on the top of the bottom plate 1, a left shaft 7 welded on the outer wall of one side of the chair back 6, a right shaft 8 welded on the outer wall of the other side of the chair back 6, the left shaft 7 connected with the left armrest box 2 through a bearing, the right shaft 8 connected with the right armrest box 3 through a bearing, so that the chair back 6 can rotate, a ratchet 9 welded on one end of the right shaft 8, an installation shell 10 connected on the inner wall of one side of the right armrest box 3 through a bolt, the ratchet 9 positioned inside the installation shell 10, a locking plate 13 inserted on the outer wall of the top of the installation shell 10, the locking plate 13 is matched with the ratchet wheel 9, so that the ratchet wheel 9 is locked bidirectionally by the locking plate 13, and the angle of the chair back 6 is fixed.

Further, the inner wall of one side of the right armrest box 3 is welded with a fixed plate 11, the outer wall of the top of the locking plate 13 is welded with a guide pillar 12, the top end of the guide pillar 12 penetrates through the fixed plate 11 and is welded with a stop block, and the guide pillar 12 is movably inserted into the fixed plate 11, so that the locking plate 13 moves more stably.

Further, the torsion spring 22 has been cup jointed to the outside of left axle 7, and the outer wall welding of left axle 7 has rotary disk 21, and the welding of one side inner wall of left handrail case 2 has fixed disk 23, and the both ends of torsion spring 22 are pegged graft respectively in the inside of fixed disk 23 and rotary disk 21 for the back of the chair back 6 when rotating laminates with human back, and then makes the rotation of the back of the chair 6 more convenient.

Further, a spring 14 is sleeved outside the guide post 12, the spring 14 is positioned between the fixed plate 11 and the locking plate 13, and the locking plate 13 is kept matched with the ratchet wheel 9 in a natural state by the spring 14.

Further, the outer wall of one side of the right armrest box 3 is connected with a toggle plate 15 in a rotating mode through a shaft, one end of the toggle plate 15 is provided with a connecting hole 17, the outer wall of one side of the locking plate 13 is welded with a connecting column 24, the connecting column 24 is connected to the inside of the connecting hole 17 in a sliding mode, one end, away from the locking plate 13, of the toggle plate 15 is sleeved with a rubber sleeve 16, the locking plate 13 can be separated from the ratchet wheel 9 by pressing the toggle plate 15 down, and then the chair back 6 can be conveniently rotated.

Further, the top outer wall of left handrail case 2 and right handrail case 3 all has apron 4 through hinge connection, and the top outer wall of bottom plate 1 is provided with seatpad 5, makes through seatpad 5 sit more comfortable on 3 auditorium chairs.

Furthermore, the bottom outer wall welding of extension board 18 has backup pad 19, and the top outer wall of backup pad 19 is opened has mounting hole 20, fixes the auditorium chair through mounting hole 20.

The working principle is as follows: when in use, when the angle between the chair back 6 and the bottom plate 1 needs to be adjusted, the poking plate 15 is pulled downwards through the rubber sleeve 16, so that the toggle plate 15 rotates, the rotation of the toggle plate 15 drives the locking plate 13 to move upward through the coupling hole 17, thereby separating the locking plate 13 from the ratchet wheel 9, at the moment, the angle between the chair back 6 and the bottom plate 1 can be adjusted, when the locking plate 13 moves upwards, the locking plate 13 drives the guide post 12 to slide in the fixed plate 11, so that the spring 14 is compressed by the locking plate 13, when the angle between the chair back 6 and the bottom plate 1 needs to be fixed, the poking plate 15 is loosened, so that the locking plate 13 is matched with the ratchet wheel 9 through the elasticity of the spring 14, and the angle of the chair back 6 is fixed, and when the chair back 6 needs to be folded and covered on the upper part of the bottom plate 1, the chair back 6 and the bottom plate 1 only need to be adjusted to be in a parallel state.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The auditorium chair with the turnover backrest comprises a bottom plate (1) and is characterized in that two support plates (18) are welded on the outer wall of the bottom plate (1), a left armrest box (2) is connected to the outer wall of one side of the bottom plate (1) through a bolt, a right armrest box (3) is connected to the outer wall of the other side of the bottom plate (1) through a bolt, a chair back (6) is arranged between the left armrest box (2) and the right armrest box (3), the chair back (6) is located at the top of the bottom plate (1), a left shaft (7) is welded on the outer wall of one side of the chair back (6), a right shaft (8) is welded on the outer wall of the other side of the chair back (6), the left shaft (7) is connected with the left armrest box (2) through a bearing, the right shaft (8) is connected with the right armrest box (3) through a bearing, and a ratchet shaft (9) is welded at one end of the right ratchet shaft (8), the inner wall of one side of the right armrest box (3) is connected with an installation shell (10) through a bolt, the ratchet wheel (9) is located inside the installation shell (10), the outer wall of the top of the installation shell (10) is connected with a locking plate (13) in an inserting mode, and the locking plate (13) is matched with the ratchet wheel (9).

2. The auditorium chair with the foldable backrest as claimed in claim 1, wherein a fixed plate (11) is welded on the inner wall of one side of the right armrest box (3), a guide post (12) is welded on the outer wall of the top of the locking plate (13), and a stop block is welded on the top end of the guide post (12) penetrating through the fixed plate (11).

3. The auditorium chair with the foldable backrest as claimed in claim 1, wherein a torsion spring (22) is sleeved outside the left shaft (7), a rotating disk (21) is welded on the outer wall of the left shaft (7), a fixed disk (23) is welded on the inner wall of one side of the left armrest box (2), and two ends of the torsion spring (22) are respectively inserted into the fixed disk (23) and the rotating disk (21).

4. Auditorium chair with folding backrest, according to claim 2, characterized in that said guide post (12) is externally sleeved with a spring (14), said spring (14) being located between said fixed plate (11) and said blocking plate (13).

5. The auditorium chair with the turnover backrest as claimed in claim 1, wherein a poking plate (15) is rotatably connected to one side outer wall of the right armrest box (3) through a shaft, a connecting hole (17) is formed in one end of the poking plate (15), a connecting column (24) is welded to one side outer wall of the locking plate (13), the connecting column (24) is slidably connected to the inside of the connecting hole (17), and a rubber sleeve (16) is sleeved on one end, away from the locking plate (13), of the poking plate (15).

6. The auditorium chair with the foldable backrest as claimed in claim 1, wherein the top outer walls of the left armrest box (2) and the right armrest box (3) are both connected with a cover plate (4) through hinges, and the top outer wall of the bottom plate (1) is provided with a seat cushion (5).

7. The auditorium chair with the foldable backrest as claimed in claim 1, wherein the bottom outer wall of the support plate (18) is welded with a support plate (19), and the top outer wall of the support plate (19) is provided with a mounting hole (20).