CN210407761U

CN210407761U - Office chair with double chair backs

Info

Publication number: CN210407761U
Application number: CN201920911644.4U
Authority: CN
Inventors: 李爱军
Original assignee: Tianjin Jinsheng Hengda Furniture Co Ltd
Current assignee: Tianjin Jinsheng Hengda Furniture Co Ltd
Priority date: 2019-06-17
Filing date: 2019-06-17
Publication date: 2020-04-28
Anticipated expiration: 2029-06-17

Abstract

The utility model discloses a two back of chair office chair utensil, including the seat, the lower surface intermediate position department of seat is connected with the back shaft perpendicularly, the lower extreme surface of back shaft evenly is provided with the supporting leg, the perpendicular symmetry of surface is provided with two first installations axle on the rear side of seat, slidable mounting is cup jointed to the upper end of first installation axle has the back, the perpendicular surface of upper surface of back is connected with second installation axle, slidable mounting is cup jointed to the upper end of second installation axle has the back cushion. The utility model relates to an office chair utensil technical field, this two back of the chair office chair utensils cup joint slidable mounting through the upper end of second installation axle and have the back cushion, and the rear surface of seat has the connecting piece through screw fixed mounting, and the upper end both sides of connecting piece and the equal horizontally connect in middle both sides have L shape anchor strut, can conveniently dismantle and install back and back cushion to be convenient for wash back and back cushion, the device structural design is simple, convenient operation.

Description

Office chair with double chair backs

Technical Field

The utility model relates to an office chair technical field specifically is a two back of the chair office chair utensil.

Background

The furniture is composed of four main factors of materials, structures, appearance shapes and functions, wherein the structures and the functions are main power for promoting the development of the furniture, the chair is one of furniture which is most widely used in houses and office occasions, along with the development of the society, in order to provide people with a comfortable feeling, the functional and structural changes of the chair are more and more rich, in order to ensure the health of people, the chair with double chair backs for office use is specially designed, the two side ribs of the back of the people can be uniformly stressed, and the comfort level of the user is increased.

However, the current double chair backs are unreasonable in design and still have some defects in the using process, the back rests and the back pillows of the current double chair backs are directly fixed and cannot be disassembled, so that the chair is inconvenient to clean, when a person leans against the back rest, the chair is easy to topple, and the defect is not correspondingly improved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a two back of the chair office chair utensil, the back and the back cushion of having solved present two backs of the chair all are the snap-on, can not dismantle it to inconvenient washs it, when personnel lean on the back, the problem of phenomenon is emptyd to the chair easy emergence.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: an office chair with double chair backs comprises a seat surface, wherein a support shaft is vertically connected at the middle position of the lower surface of the seat surface, the outer surface of the lower end of the supporting shaft is uniformly provided with supporting legs, the upper surface of the rear side of the seat surface is vertically and symmetrically provided with two first mounting shafts, the upper end of the first mounting shaft is sleeved and slidably provided with a backrest, the upper surface of the backrest is vertically connected with a second mounting shaft, the upper end of the second mounting shaft is sleeved and slidably provided with a back cushion, the rear surface of the seat surface is fixedly provided with a connecting piece through a screw, l-shaped reinforcing rods are horizontally connected with both sides of the upper end and both sides of the middle of the connecting piece, two L-shaped inserting blocks are symmetrically arranged on the back surfaces of the backrest and the back cushion, the upper surface of one end of the supporting leg is vertically connected with a fixed rod, the upper end of the fixed rod is fixedly connected with the lower surface of the seat surface, and one side of the upper end of the fixed rod is horizontally connected with a sliding shaft.

Preferably, the outer surface of the first installation axle is located the lower surface position department of back and cup joints slidable mounting and has a rubber packing ring, and the outer surface of the first installation axle cup joints and is provided with first spring, the upper end of first spring and the lower fixed surface of rubber packing ring are connected, and the lower extreme of first spring and the upper fixed surface of seat face are connected, the outer surface of second installation axle is provided with the structure the same with first installation axle.

Preferably, the lower surface of the L-shaped reinforcing rod is provided with a slot corresponding to the L-shaped insert block, and the upper end of the L-shaped insert block is embedded into the slot in a sliding manner.

Preferably, one end of the L-shaped reinforcing rod is fixedly connected with the backrest and the back cushion through fixing bolts.

Preferably, the one end fixedly connected with bracing piece of slide-shaft, the one end of bracing piece and the lower extreme one side fixed connection of dead lever, slidable mounting is cup jointed to the one end surface of slide-shaft has support piece, support piece's one end side be provided with slide-shaft assorted sliding tray, and support piece's the other end and the rear surface fixed connection of connecting piece.

Preferably, the outer surface of the sliding shaft is provided with a second spring in a sleeved mode, one end of the second spring is fixedly connected with the other side face of one end of the supporting piece, and the other end of the second spring is fixedly connected with one side face of the upper end of the fixing rod.

Advantageous effects

The utility model provides a two back of chair office chair utensil, compare with prior art and possess following beneficial effect:

(1) this two back of chair office chair utensil, cup joint slidable mounting through the upper end of first installation axle and have the back, the last perpendicular surface of back is connected with second installation axle, slidable mounting is cup jointed to the upper end of second installation axle and has the back cushion, the rear surface of seat has the connecting piece through screw fixed mounting, the equal horizontally connected in both sides has L shape anchor strut in the upper end both sides and the centre of connecting piece, can conveniently dismantle and install back and back cushion, thereby be convenient for wash back and back cushion, the device structural design is simple, and convenient for operation and strong practicability are realized.

(2) This two back of chair office chair utensil, surface vertical is connected with the dead lever on the one end through the supporting leg, the upper end of dead lever and the lower fixed surface of seat are connected, and upper end one side horizontally connect with the slide bar of dead lever, the one end fixedly connected with bracing piece of slide bar, the one end of bracing piece and the lower extreme one side fixed connection of dead lever, slidable mounting is cup jointed to the one end surface of slide bar has support piece, when personnel sit on the chair, under the elasticity of support piece and second spring, can play the firm effect of support to the back, prevent that the chair from taking place to empty the phenomenon, the device has improved the security.

Drawings

FIG. 1 is a perspective view of the structure of the present invention;

FIG. 2 is a schematic view of the backrest and headrest of the present invention;

fig. 3 is an installation schematic diagram of the support member structure of the present invention.

In the figure: the back cushion comprises a seat surface 1, a support shaft 2, a support leg 3, a first mounting shaft 4, a rubber washer 41, a first spring 42, a backrest 5, a second mounting shaft 6, a headrest 7, a connecting piece 8, a reinforcing rod 9L, a slot 91, a fixing bolt 92, an inserting block 10L, a fixing rod 11, a sliding shaft 12, a support rod 121, a support piece 122 and a second spring 123.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a double-chair back office chair comprises a seat surface 1, wherein a support shaft 2 is vertically connected to the middle position of the lower surface of the seat surface 1, support legs 3 are uniformly arranged on the outer surface of the lower end of the support shaft 2, two first installation shafts 4 are vertically and symmetrically arranged on the upper surface of the rear side of the seat surface 1, a backrest 5 is sleeved and slidably installed at the upper ends of the first installation shafts 4, a second installation shaft 6 is vertically connected to the upper surface of the backrest 5, a back cushion 7 is sleeved and slidably installed at the upper end of the second installation shaft 6, a connecting piece 8 is fixedly installed on the rear surface of the seat surface 1 through screws, L-shaped reinforcing rods 9 are horizontally connected to both sides of the upper end and the middle side of the connecting piece 8, one end of each L-shaped reinforcing rod 9 is fixedly connected with the backrest 5 and the back cushion 7 through a fixing bolt 92, in order to reinforce the backrest 5 and the back cushion 7, two L-shaped inserting blocks 10 are symmetrically, the outer surface of the first installation shaft 4 is positioned at the lower surface of the backrest 5 and is sleeved with a rubber gasket 41 in a sliding manner, the outer surface of the first installation shaft 4 is sleeved with a first spring 42, the upper end of the first spring 42 is fixedly connected with the lower surface of the rubber gasket 41, the lower end of the first spring 42 is fixedly connected with the upper surface of the seat surface 1, the outer surface of the second installation shaft 6 is provided with a structure the same as that of the first installation shaft 4, the lower surface of the L-shaped reinforcing rod 9 is provided with a slot 91 corresponding to the L-shaped insert block 10, the upper end of the L-shaped insert block 10 is embedded and slidably installed in the slot 91, the backrest 5 and the headrest 7 are convenient to disassemble and assemble, so that the backrest 5 and the headrest 7 are convenient to clean, the upper surface of one end of the supporting leg 3 is vertically connected with a fixed rod 11, the upper end of the fixed rod 11 is fixedly connected with the lower surface of the seat, one end fixedly connected with bracing piece 121 of slide shaft 12, the one end of bracing piece 121 and the lower extreme one side fixed connection of dead lever 11, slidable mounting has support piece 122 in the cup joint of the one end surface of slide shaft 12, the one end side of support piece 122 is provided with the sliding tray with slide shaft 12 assorted, and the other end of support piece 122 and the rear surface fixed connection of connecting piece 8, the surface of slide shaft 12 is cup jointed and is provided with second spring 123, the one end of second spring 123 and the one end another side fixed connection of support piece 122, and the other end of second spring 123 and the upper end side fixed connection of dead lever 11, in order to play the firm effect of support to back 5, prevent that the chair from taking place to empty the phenomenon, and the safety is improved.

When in use, firstly, the lower surface of the backrest 5 is sleeved in the first mounting shaft 4 on the seat surface 1, the backrest 5 is pressed downwards under the elasticity of the first spring 42, the backrest 5 moves downwards, the L-shaped insert 10 on the backrest 5 is aligned with the slot 91 on the L-shaped reinforcing rod 9, then the backrest 5 is loosened, the backrest 5 moves upwards by the first spring 42, the L-shaped insert 10 is inserted into the slot 91, the mounting work of the backrest 5 is completed, the same method is adopted, then the headrest 7 is mounted, finally, the backrest 5 and the headrest 7 are reinforced by the fixing bolt 92, when the backrest 5 and the headrest 7 are dismounted, the fixing bolt 92 is firstly dismounted, then the backrest 5 and the headrest 7 are pressed downwards, the L-shaped insert 10 on the backrest 5 and the headrest 7 is separated from the slot 91 on the L-shaped reinforcing rod 9, then the backrest 5 and the headrest 7 are taken off, when a person leans on the backrest 5, a pressure is generated to the backrest 5 to move the backrest 5 backward, the backrest 5 moves the upper end of the supporting member 122 backward, the lower end of the supporting member 122 slides forward on the sliding shaft 12, and the second spring 123 prevents the supporting member 122 from sliding under the elasticity of the second spring 123 to prevent the backrest 5 from moving, thereby stably supporting the backrest 5.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a two back of chair office chair utensil, includes seat (1), its characterized in that: the seat is characterized in that a supporting shaft (2) is perpendicularly connected to the middle position of the lower surface of the seat surface (1), supporting legs (3) are evenly arranged on the outer surface of the lower end of the supporting shaft (2), two first installation shafts (4) are symmetrically arranged on the upper surface of the rear side of the seat surface (1) in a perpendicular mode, a backrest (5) is sleeved and slidably installed at the upper end of each first installation shaft (4), a second installation shaft (6) is perpendicularly connected to the upper surface of the backrest (5), a back cushion (7) is slidably installed at the upper end of each second installation shaft (6), a connecting piece (8) is fixedly installed on the rear surface of the seat surface (1) through screws, L-shaped reinforcing rods (9) are horizontally connected to two sides of the upper end and two sides of the middle of the connecting piece (8), two L-shaped inserting blocks (10) are symmetrically arranged on the rear surfaces of the backrest (5) and the back cushion (7), and fixing rods (, the upper end of the fixed rod (11) is fixedly connected with the lower surface of the seat surface (1), and one side of the upper end of the fixed rod (11) is horizontally connected with a sliding shaft (12).

2. The dual-back office chair of claim 1, wherein: the utility model discloses a seat cushion for children, including first installation axle (4), the surface of first installation axle (4) is located the lower surface position department of back (5) and cup joints slidable mounting has rubber packing ring (41), and the surface of first installation axle (4) cup joints and is provided with first spring (42), the upper end of first spring (42) and the lower fixed surface of rubber packing ring (41) are connected, and the lower extreme of first spring (42) and the last fixed surface of seat face (1) are connected, the surface of second installation axle (6) is provided with the structure the same with first installation axle (4).

3. The dual-back office chair of claim 1, wherein: the lower surface of the L-shaped reinforcing rod (9) is provided with a slot (91) corresponding to the L-shaped insert block (10), and the upper end of the L-shaped insert block (10) is embedded into the slot (91) in a sliding mode.

4. The dual-back office chair of claim 1, wherein: one end of the L-shaped reinforcing rod (9) is fixedly connected with the backrest (5) and the back cushion (7) through a fixing bolt (92).

5. The dual-back office chair of claim 1, wherein: one end fixedly connected with bracing piece (121) of slide (12), the one end of bracing piece (121) and the lower extreme one side fixed connection of dead lever (11), the one end surface of slide (12) cup joints slidable mounting has support piece (122), the one end side of support piece (122) be provided with slide (12) assorted sliding tray, and the other end of support piece (122) is connected with the back fixed surface of connecting piece (8).

6. The dual-back office chair of claim 5, wherein: the outer surface of the sliding shaft (12) is provided with a second spring (123) in a sleeved mode, one end of the second spring (123) is fixedly connected with the other side face of one end of the supporting piece (122), and the other end of the second spring (123) is fixedly connected with one side face of the upper end of the fixing rod (11).