CN211722489U

CN211722489U - Auditorium chair

Info

Publication number: CN211722489U
Application number: CN202020184226.2U
Authority: CN
Inventors: 吴新云
Original assignee: Foshan Leadcom Seating Co ltd
Current assignee: Foshan Leadcom Seating Co ltd
Priority date: 2020-02-19
Filing date: 2020-02-19
Publication date: 2020-10-23
Anticipated expiration: 2030-02-19

Abstract

An auditorium chair solves the problems of heavy structure, inconvenient operation and troublesome installation of the existing auditorium chair. The front end of the round rod is horizontally arranged on the writing board in the axial direction, and the rear end of the round rod is provided with a cylindrical guide block which is vertically fixed with the writing board; the armrest is provided with a containing cavity with a forward opening, a buffering clamping block arranged in the containing cavity and a rotating body horizontally and rotatably arranged in the containing cavity; the rotating body is provided with a round hole which is suitable for the rear end part of the round rod to be inserted and the axial direction of the round hole is vertical to the axial direction of the rotating body, and a guide hole which is convenient for the guide block to rotate and pass through; the guide hole is arranged at the top of the rotating body and communicated with the round hole; when the writing board is placed horizontally, the rear end part of the round rod is positioned outside the round hole and is abutted against the handrail, and the guide block is axially horizontal and is abutted against the rotating body; when the writing board is placed vertically, the rear end part of the round rod is positioned in the round hole, and the guide block is axially vertical; when the writing board is positioned in the accommodating cavity, the top surface of the buffering clamping block is abutted against the edge surface of the writing board; the top surface of the armrest is provided with a clamping opening communicated with the containing cavity, and the armrest plate is provided with a clamping block which can be clamped in the clamping opening.

Description

Auditorium chair

Technical Field

The utility model belongs to the technical field of office furniture, concretely relates to auditorium chair.

Background

The auditorium chair consists of chair seat, chair back, arm rests and legs, and is suitable for use in auditorium, theatre hall, report hall, etc. In general, the standing legs and the handrails are integrated to form a firmly installed handrail frame, and the composition structure of the handrail frame is generally a steel-wood structure or a steel-plastic structure.

According to the use requirement, an auditorium chair applied to an auditorium and the like needs to be provided with a writing board (or called a writing board) for placing files and recording. Auditorium chair among the prior art generally all adopts the clipboard to rotate the structural design who accomodates, for example: some auditorium chairs accomodate the clipboard inside the handrail, design into the handrail board simultaneously and rotate to connect in the handrail top, turn over the handrail board toward left side or right side when using, then take out the clipboard from handrail inside through rotation operation, rotate the bracing piece of clipboard bottom until supporting in the handrail, so that the clipboard is propped up to the handrail powerfully, thereby make the clipboard level place in the handrail front side, then rotate the clipboard to the horizontality by vertical state, so that place the file or write the record.

However, this kind of auditorium chair's structure is onerous, the operation is inconvenient, and is with high costs, it often needs design slewing mechanism to realize that the handrail board rotates to be connected in the handrail, need open the handrail board when getting and put the clipboard, and is very inconvenient, adopts the more complicated rotation coupling mechanism of structure between bracing piece and the clipboard in addition, realizes that the clipboard can rotate and realize the joint by the relative bracing piece to realized the clipboard by vertical state (not user state) rotation to horizontality (user state).

Moreover, the handrail plate (or called handrail cover plate) is generally made of beech, and the exterior of the handrail plate is coated with high-grade polyester paint, if the surface of the handrail plate is damaged and needs to be disassembled and replaced, much time is needed, and the handrail plate is very inconvenient to maintain.

It is seen that improvements and enhancements to the prior art are needed.

SUMMERY OF THE UTILITY MODEL

In view of the foregoing prior art's weak point, the utility model aims to provide an auditorium chair, simple structure is feasible, and the modern design is unique, and job stabilization is reliable, uses portably, easily dismouting, save material greatly, and is with low costs, pleasing to the eye durable, aims at solving auditorium chair heavy structure, inconvenient, the troublesome problem of installation of operation among the prior art.

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

an auditorium chair consists of a chair back, a chair seat, armrests, standing legs and a writing board arranged on the front sides of the armrests; the handrail is provided with a handrail plate; wherein,

the writing board is provided with a round rod; the front end of the round rod is horizontally fixed at the bottom of the tablet in the axial direction; the rear end of the round rod is provided with a cylindrical guide block with one end vertically fixed with the round rod;

the armrest is provided with an accommodating cavity with a forward opening, a buffering clamping block fixed in the accommodating cavity and a rotating body horizontally and rotatably arranged in the accommodating cavity;

the rotating body is provided with a round hole suitable for the rear end part of the round rod to be inserted and a guide hole convenient for the guide block to rotate and pass through; the axial direction of the round hole is vertical to the axial direction of the rotating body; the guide hole is arranged at the top of the rotating body and communicated with the round hole;

when the writing board is in a use state, the rear end part of the round rod is positioned outside the round hole and is abutted against the armrest, and the guide block is in an axial horizontal state and is abutted against the rotating body;

when the writing board is swung for 90 degrees to be switched to a non-use state, the rear end part of the round rod is positioned in the round hole, and the guide block is in an axial vertical state;

when the tablet is positioned in the accommodating cavity, the top surface of the buffer clamping block is abutted against the edge surface of the tablet;

the top surface of the handrail is provided with a clamping opening communicated with the accommodating cavity, and the bottom surface of the handrail plate is provided with a clamping block which can be clamped in the clamping opening.

In the auditorium chair, the armrests are provided with clamping seats fixed in the accommodating cavities; the clamping seat is provided with a cylindrical cavity, and the rotating body is coaxially arranged in the cavity; the bottom of the clamping seat is provided with an opening which is communicated with the cavity and is convenient for the round rod to pass through; when the writing board is in a use state, the rear end part of the round rod is clamped in the opening.

In the auditorium chair, the clamping seat is circular when viewed from the axial direction of the cavity, and the opening is semicircular.

In the auditorium chair, the outer peripheral surface of the rotating body is in contact with the inner peripheral surface of the cavity; the width of the opening is matched with the diameter of the round rod.

In the auditorium chair, the guide block is a screw rod, and the round rod is correspondingly provided with a screw hole suitable for being in threaded connection with the guide block.

In the auditorium chair, the guide block is made of metal material.

In the auditorium chair, the buffering clamping block is made of rubber.

In the auditorium chair, the top surface of the buffering clamping block is an arc-shaped surface.

In the auditorium chair, the bottom of the writing board is provided with a mounting groove suitable for the round rod to be placed in, the round rod is provided with a fixing plate which is connected with the round rod and is positioned below the mounting groove, and the fixing plate is fixedly connected with the bottom surface of the writing board.

In the auditorium chair, the clamping block is integrally formed by an inverted L-shaped connecting part and an inverted V-shaped clamping part, the connecting part is fixed on the bottom surface of the armrest plate, and one end of the clamping part is connected with the bottom end of the connecting part; when the clamping part is clamped into the clamping inlet and is abutted against the inner wall surface of the containing cavity, which is positioned above the containing cavity, the bottom surface of the armrest plate is attached to the top surface of the armrest.

Has the advantages that:

the utility model provides an auditorium chair, simple structure is feasible, and the modern design is unique, and job stabilization is reliable, uses portably, and easily dismouting, save material greatly, and is with low costs, and is pleasing to the eye durable, aims at solving the auditorium chair among the prior art problem that the structure is heavy, the operation is inconvenient, the installation is troublesome.

The utility model discloses a unique rotor of structure, and at a guide block of the round bar fixation that is used for supporting the board, through the guiding hole that guide block and rotor set up, the round bar and the cooperation of the round hole of rotor setting, impeld round bar and guide block to take place the displacement along the fore-and-aft direction when having realized round bar and guide block pivoted to accomplish the joint between round bar and the handrail, remove the joint work. In addition, set up the chamber that holds that the opening is forward at the handrail, be convenient for the board with vertical state accomodate in holding the intracavity, easy operation need not to turn over the handrail board, influences the personnel of sitting in adjacent position when avoiding getting and putting the board. Through such exquisite structural design, can simplify the overall structure of auditorium chair greatly, save material, reduce cost.

And the top surface of the handrail is provided with a clamping inlet communicated with the accommodating cavity, and a clamping block arranged on the handrail plate is correspondingly inserted into the clamping inlet, so that the handrail plate is clamped on the handrail, the handrail is convenient to disassemble and assemble, and the handrail is easy to maintain.

Drawings

Fig. 1 is an exploded view of the auditorium chair of the present invention.

Fig. 2 is a perspective view of the auditorium chair of the present invention.

Fig. 3 is an exploded view of the connection structure of the writing board and the round bar in the auditorium chair of the present invention.

Fig. 4 is a schematic view of the rotating body and the round bar of the auditorium chair of the present invention when the writing board is in use.

Fig. 5 is a schematic view of the rotating body and the round bar of the auditorium chair of the present invention when the writing board is not in use.

Fig. 6 is a left side view of the rotating body and the round bar connected with the clamping seat when the writing board is in use state in the auditorium chair provided by the utility model.

Fig. 7 is a sectional view of section a-a in fig. 6.

Fig. 8 is a perspective view of the connection structure between the rotating body and the round bar and the card seat when the tablet is in use in the auditorium chair of the present invention.

Fig. 9 is a perspective view of the rotating body of the auditorium chair of the present invention.

Fig. 10 is a schematic view of the writing board and the buffering fixture block in the accommodating cavity of the auditorium chair of the present invention.

Fig. 11 is a schematic structural view of the armrest plate and the fixture block in the auditorium chair provided by the present invention.

Fig. 12 is a schematic view of the fixture block in the auditorium chair of the present invention.

Detailed Description

The utility model provides an auditorium chair, for making the utility model discloses a purpose, technical scheme and effect are clearer, make clear and definite, and it is right that the following refers to the attached drawing and the embodiment of lifting the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

In the present invention, the orientation is determined as follows, and as shown in fig. 2, the front side of the seat back is set as the front side, the back side of the seat back is set as the back side, and the use surface of the tablet is set as the top side.

Referring to fig. 1, 2 and 10, the present invention provides an auditorium chair, which comprises a chair back 1, a chair seat 2, armrests, a standing leg 33 and a writing board 5 disposed at the front side of the armrests, wherein the armrests are provided with armrest boards 31. The armrest consists of an armrest seat 32 and an armrest plate 31 fixed on the top of the armrest seat 32, a standing leg 33 is fixedly connected with the bottom of the armrest seat 32, the standing leg 33, the armrest plate 31 and the armrest seat 32 form an armrest frame 3, and the chair back 1 and the chair seat 2 are fixedly connected with the inner side of the armrest frame 3.

As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 10, wherein the tablet 5 is provided with a round bar 6; the front end of the round rod 6 is horizontally fixed at the bottom of the writing board 5 in the axial direction; the rear end of the round rod 6 is provided with a cylindrical guide block 62 with one end vertically fixed with the round rod.

The armrest seat 32 of the armrest is provided with a containing cavity 325 with a forward opening, a buffer fixture block 9 fixed in the containing cavity 325, and a rotating body 7 horizontally and rotatably arranged in the containing cavity 325. The rotating body 7 is provided with a round hole 72 suitable for the rear end part of the round rod 6 to be inserted and a guide hole 71 convenient for the guide block 62 to rotate and pass through; the axial direction of the circular hole 72 is perpendicular to the axial direction of the rotor 7, and in this embodiment, the axis of the circular hole is coplanar with the axis of the rotor. The guide hole 71 is formed at the top of the rotor 7 and communicates with the circular hole 72.

As shown in fig. 1, 3, 4 and 9, when the tablet 5 is in a use state, the rear end of the round rod 6 is located outside the round hole 72 and abuts against the armrest, and the guide block 62 is in an axial horizontal state and abuts against the rotating body 7. The round rod 6 and the writing board 5 are in a stable horizontal state because the top surface of the rear end of the round rod 6 is pressed (or hindered) by the armrest, so that the phenomenon that the rotating body 7 rotates when the writing board is in a use state to cause the writing board to swing downwards is avoided. The guide block 62 is effectively supported by the support surface 73 of the rotator 7 and prevents the guide block 62 from further rotation, thereby ensuring that the tablet is in a horizontal state and does not swing down.

The support surface 73 may be planar. From a top view, the support surface falls outside the projected range of the circular hole 72.

As shown in fig. 3, 4, 5, and 10, when the tablet 5 is swung up by 90 ° (the tablet is rotated 90 ° counterclockwise from the front view) in the horizontal state to switch to the non-use state, the rear end of the round rod 6 is located in the round hole 72, the guide block 62 is in the axial vertical state, and after the guide block 62 is rotated along the wall surface of the guide hole 71, the guide block 62 and the round rod 6 are not only rotated by 90 °, but also simultaneously moved forward, so that the round rod 6 is moved from the outside of the round hole 72 to the inside of the round hole 72, and the abutting action between the rear end of the round rod 6 and the armrest is released, and therefore, the rotor 7 can be rotated to swing the tablet 5 in the vertical state to the accommodation cavity 325 accommodated in the armrest.

As shown in fig. 10, when the tablet 5 is located in the accommodating cavity 325, the top surface of the buffering latch 9 abuts against the edge surface of the tablet 5. The tablet 5 swings vertically until contacting the top surface of the buffering fixture block 9, so as to prevent the tablet from impacting the wall surface of the accommodating cavity 325 of the armrest when swinging downward, and the buffering fixture block 9 elastically deforms and always contacts the tablet 5, so that the tablet 5 keeps still when no external force is applied.

When the tablet 5 needs to be taken out, the user can stretch into the accommodating cavity 325 by hand, and apply enough external force while clamping the tablet 5 to overcome the obstruction of the buffer clamping block to the tablet, so that the tablet 5 swings upwards. When the round bar 6 is in a horizontal state, the writing board is swung downwards by 90 degrees, and the armrest blocks the rear end of the round bar 6, and the rotator 7 blocks the guide block 62, so that the writing board is promoted to be placed horizontally.

The utility model discloses the direct round bar 6 that will be used for supporting board 5 is fixed in the board, compares the auditorium chair among the prior art, has saved and has rotated connection structure, simplifies overall structure, weight reduction. And, a guide block 62 is fixed perpendicularly at the rear end of round bar 6, and the holding cavity 325 of handrail has set up a rotatable rotor 7, rotor 7 can drive round bar 6 and rotate synchronously, realize the swing back and forth of board, rotor 7 corresponds guide block 62 and sets up a guiding hole 71, make guide block 62 rotate along the wall of guiding hole 71 when round bar 6 rotates, realize round bar 6 position in the front and back direction, thereby with the help of the effort between round bar and the handrail, guarantee that the board is in the horizontality for use, it is very easy and convenient to get and put the board, easy operation, need not to operate the board, simplify the structure of handrail, save manufacturing material greatly.

As shown in fig. 1, a card-in opening 322 communicating with the accommodating cavity 325 is formed on the top surface of the armrest, and a card block 4 capable of being clamped in the card-in opening 322 is formed on the bottom surface of the armrest plate 31. The armrest plate 31 is directly arranged on the armrest in a clamping way through the clamping block 4, and a rotating mechanism with a complex structure is not required to be arranged, so that the armrest plate 31 can rotate relative to the armrest to facilitate the taking out of the writing board 5; moreover, the handrail plate is easy to disassemble and assemble, and is convenient to maintain.

As shown in fig. 1, 11 and 12, specifically, the latch 4 is integrally formed by an inverted L-shaped connecting portion 41 and an inverted V-shaped clipping portion 42, and in this embodiment, the latch 4 is made of a metal elastic sheet. The top end of the connecting part 41 is fixed on the bottom surface of the armrest plate 31 through a screw, and one end of the clamping part 42 is connected with the bottom end of the connecting part 41.

When the engaging portion 42 is engaged with the engaging opening 322 and abuts against the upper inner wall surface of the accommodating cavity 325 (i.e., the bottom surface of the top plate 321 of the armrest), the bottom surface of the armrest plate 31 abuts against the top surface of the armrest (i.e., the top surface of the top plate 321 of the armrest), as shown in fig. 12.

After the handrail plate 31 is clamped on the handrail seat 32, the top plate 321 of the handrail is in surface contact with the handrail plate 31, thereby effectively supporting the handrail plate 31 and promoting the handrail plate to keep a stable state.

As shown in fig. 1, 11, and 12, the inner angle of the clip portion 42 ranges from 90 ° to 120 °. When the handle plate 31 is mounted on the handle seat 32, as shown in fig. 12, the handle plate 31 is moved downward and leftward to insert the engaging portion 42 into the engaging opening 322, and the engaging portion 42 is elastically deformed by the top plate 321 of the handle during the process, so that the inner angle of the engaging portion 42 is increased, and the handle plate 31 can be fixed on the handle seat 32 by the engaging action of the engaging block 4 and the top plate 321 of the handle. At this time, the catching portion 42 is restored to the original shape, and since the bottom surface of the top plate 321 of the armrest abuts against the top end of the catching portion 42, the armrest panel cannot be easily separated from the armrest seat by directly lifting up the armrest panel.

As shown in fig. 11 and 12, when the handle plate 31 needs to be removed, the handle plate 31 is moved upward, the engaging portion 42 is elastically deformed by the pressure of the top plate 321 of the handle during the upward movement, and the handle plate is moved rightward, so that the engaging portion 42 can be pulled out from the engaging opening, thereby completing the removal of the handle plate.

As shown in fig. 12, the leg 33 is provided with a coupling hole 331 adapted to be bolted to the ground. When the armchair stand is installed on the ground, the leg 33 is tightly fixed to the ground by using a bolt through the connection hole 331.

As shown in fig. 1, 3, 6, 7 and 8, specifically, the armrest is provided with a clamping seat 8 fixed to the accommodating cavity 325; the clamping seat 8 is provided with a cylindrical cavity 81, and the rotating body 7 is coaxially arranged in the cavity 81; an opening 82 which is communicated with the cavity 81 and is convenient for the round rod 6 to pass through is formed at the bottom of the clamping seat 8; when the tablet 5 is in use, the rear end of the rod 6 is engaged with the opening 82.

The setting of opening 82, not only for carrying out the joint with the rear end of round bar 6, exert decurrent pressure to the rear end of round bar to guarantee that the round bar that the level is motionless can effectively support up the board, moreover, when board 5 lower hem in order to accomodate the chamber 325 that holds of handrail, avoid causing the hindrance to round bar 6.

The clamp base 8 may be fixed to the handrail by welding or bolts.

Of course, instead of the card seat 8, a card board may be provided at a suitable position, and like the card seat, the back end of the round bar 6 can be pressed downwards, so that the round bar can be kept horizontal when the tablet is used.

As shown in fig. 3, 6 and 8, the holder 8 is circular when viewed from the axial direction of the cavity 81, and the opening 81 is semicircular. Of course, the card seat 8 may also be square, and the opening is U-shaped. Other shapes are possible in addition to this. In this embodiment, however, a circular cartridge is preferred. In addition, the clamping seat 8 can be made of metal materials, such as iron, aluminum, stainless steel, and the like. Similarly, the round bar 6 is made of a metal material.

Specifically, the outer peripheral surface of the rotor 7 is in contact with the inner peripheral surface of the cavity 81, and by such design, the rotor can be directly inserted into the cavity 81 of the fixed clamping seat 8 without being connected with the armrest, and can freely rotate relative to the clamping seat 8 and the armrest. The width of the opening 82 is adapted to the diameter of the round bar 6, and the round bar 6 and the rolling element 7 are prevented from moving in the left-right direction by the above-described structural design. Thus, the mounting work is greatly simplified.

As shown in fig. 4, 5 and 7, in the present embodiment, the guide block 62 is a screw, and the round rod 6 is correspondingly provided with a screw hole (not marked in the figures) adapted to be in threaded connection with the guide block 62. In the aspect of installation and dismantlement, rotate so that guide block 62's axial when round bar 6 is vertical, alright use tool unscrews guide block 62, alright take out round bar 6 from round hole 72, need not to dismantle rotor 7, cassette 8 etc. that the greatly reduced installation and the dismantlement degree of difficulty. Specifically, the guide block 62 is made of a metal material, such as iron, carbon steel, or the like. In this embodiment, a socket head cap screw is used.

As shown in fig. 10, specifically, the buffering latch 9 is made of rubber, and when the tablet 5 swings downward to be placed in the accommodating cavity 325, the edge surface of the tablet 5 contacts with the top surface of the buffering latch 9, and is stopped and kept stable by the friction force of the buffering latch 9. But may of course be made of other materials. In this embodiment, the top surface of the buffering latch 9 is an arc surface, so that the lowest point of the edge surface of the tablet 5 located in the accommodating cavity 325 contacts with the highest point of the buffering latch 9, thereby facilitating easy removal of the tablet.

As shown in fig. 2 and 3, the bottom of the tablet 5 is provided with an installation groove 51 suitable for the round bar 6 to be inserted into, the round bar 6 is provided with a fixing plate 61 integrally connected with the round bar and located below the installation groove 51, and the fixing plate 61 is fixedly connected with the bottom surface of the tablet 5 by a screw connection manner. The fixing plate 61 may be fixed to the round bar 6 by welding. The utility model discloses directly fix board 5 and round bar 6, drive the board by the round bar and rotate, need not to be equipped with complicated rotation coupling mechanism between round bar and board, the structure is brief, and the installation is fast, and the cost is low.

In the utility model, as shown in fig. 2, the tablet is only schematically shown to be arranged on the left side of the auditorium chair, and the tablet can be arranged on the right side of the auditorium chair according to actual needs. In addition, because the auditorium chair sets up side by side, in order to save auditorium's installation space, material, adjacent auditorium chair is handrail of sharing generally, so in the utility model discloses an in-service use, can install the board in every handrail front side with the array form to supply everyone to use the board. The utility model discloses an ingenious design compares current auditorium chair, can make people need not to turn over the handrail board when getting and put the board, consequently can not be to the man of sitting in adjacent position and become the influence.

To sum up, the utility model provides an auditorium chair, simple structure is feasible, and the modern design is unique, and job stabilization is reliable, uses portably, and easily dismouting is save material greatly, and is with low costs, pleasing to the eye durable, aims at solving auditorium chair among the prior art problem that the structure is heavy, the operation is inconvenient, the installation is troublesome.

It should be understood that equivalent alterations and modifications can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such alterations and modifications should fall within the scope of the appended claims.

Claims

1. An auditorium chair consists of a chair back, a chair seat, armrests, standing legs and a writing board arranged on the front sides of the armrests; the handrail is provided with a handrail plate; it is characterized in that the preparation method is characterized in that,

2. The auditorium chair according to claim 1, wherein said armrests are provided with a seat fixed to said housing cavity; the clamping seat is provided with a cylindrical cavity, and the rotating body is coaxially arranged in the cavity; the bottom of the clamping seat is provided with an opening which is communicated with the cavity and is convenient for the round rod to pass through; when the writing board is in a use state, the rear end part of the round rod is clamped in the opening.

3. An auditorium chair according to claim 2, wherein said seat is circular, as seen in the axial direction of said cavity, and said opening is semi-circular.

4. An auditorium chair according to claim 2 or 3, wherein the outer peripheral surface of said rotor is in contact with the inner peripheral surface of said cavity; the width of the opening is matched with the diameter of the round rod.

5. The auditorium chair according to claim 1, wherein said guide blocks are threaded rods, and said round rods are correspondingly provided with threaded holes adapted to be threadedly coupled with said guide blocks.

6. An auditorium chair according to claim 1 or 5, wherein said guide blocks are made of metal material.

7. The auditorium chair according to claim 1, wherein said buffer latch is made of rubber.

8. The auditorium chair according to claim 1 or 7, wherein the top surface of said buffer block is an arc-shaped surface.

9. The auditorium chair as claimed in claim 1, wherein the writing board has a bottom defining a mounting slot adapted for receiving the rod, the rod having a fixing plate integrally connected to the bottom and located below the mounting slot, the fixing plate being fixedly connected to the bottom of the writing board.

10. The auditorium chair according to claim 1, wherein said fixture block is integrally formed by a connecting portion in an inverted L-shape and a catching portion in an inverted V-shape, said connecting portion being fixed to the bottom surface of the armrest plate, one end of said catching portion being connected to the bottom end of said connecting portion; when the clamping part is clamped into the clamping inlet and is abutted against the inner wall surface of the containing cavity, which is positioned above the containing cavity, the bottom surface of the armrest plate is attached to the top surface of the armrest.