CN216797086U

CN216797086U - Seat with adjustable backrest

Info

Publication number: CN216797086U
Application number: CN202121822058.6U
Authority: CN
Inventors: 石银祥
Original assignee: UE Furniture Co Ltd
Current assignee: UE Furniture Co Ltd
Priority date: 2021-08-05
Filing date: 2021-08-05
Publication date: 2022-06-24
Anticipated expiration: 2031-08-05
Also published as: WO2023010683A1

Abstract

The utility model discloses a piece of seating furniture with an adjustable backrest, which comprises a backrest component and a seat component, wherein the backrest component comprises a backrest base and a seat base; the backrest assembly comprises two side plates which are symmetrically arranged at the left and right, at least two connecting seats which are spaced from each other front and back are arranged on a single side plate, fixing pieces which extend upwards are arranged on two sides of the rear end of the seat assembly in a mirror image mode, and the connecting seats are configured to be matched with the fixing pieces in an inserting mode; connecting seats in different front and rear positions are selected to be connected with the fixing piece, so that the front and rear mounting positions of the backrest assembly can be adjusted; two connecting seats which are spaced front and back are arranged on a side plate of the backrest component, and the connecting seats are connected and matched with the inserting pieces on the seat component to realize the assembly of the backrest component and the seat component; because the connecting seat sets up around, so can with the selective connecting seat assembly with under the different positions of inserted sheet, just also can adjust back mounted position around the back subassembly, satisfy back position adjustable demand.

Description

Seat with adjustable backrest

Technical Field

The utility model relates to the field of furniture, in particular to a seat with an adjustable backrest.

Background

Nowadays, the sofa gradually becomes one of the essential furniture in daily life of people, and people can lean on the sofa to have a rest and relax. And the types, structures and functions of the existing sofa are more and more diversified, so that different requirements of people can be met. There is a sofa combining metal and wood on the market, the seat component of which is a metal frame structure, and the backrest component of which is a wood frame structure; the assembled sofa can ensure stable structure and further save cost.

However, the backrest of the existing sofa is basically fixed after being assembled, and particularly the front and back positions of the backrest cannot be adjusted, and in the using process of the sofa, because different people have different sitting habits, or adults and children have different requirements on the backrest when using the sofa, for example, because of the body shape, the adults generally need to back the backrest a little to allow more space on the seat plate, and because children have smaller body shapes, the back of the sofa is too back, when sitting on the chair and leaning on the backrest, the lower legs may not be bent naturally, and the sofa is uncomfortable to sit for a long time.

And same adult also is different at the requirement of different moments to the seat, for example when the people needs to relax, generally can like the back later, there is more space on the bedplate, sit a bit forward a little like this, then lean on the back, can let the back have a great inclination, it can more relax to sit, thereby reach the effect of eliminating fatigue, and when the people needs more concentrated mental work or when listening to the collection and reporting, the focus can be forward partially, just can't let the back lean on the back this moment, the time is of a specified duration, back muscle can be tired, the people also can become tired. Aiming at the situation, a sofa with a backrest capable of being adjusted front and back needs to be designed, so that the sofa can be adjusted at any time when the sofa backrest is required to be in different positions, and the back is protected better, so that the body is healthier. The adjusting mechanisms of the existing sofas with adjustable backrest positions are too complex, and the components are arranged in the backrest too complex, so that the positions of the backrest can be adjusted, but the production and installation costs are undoubtedly greatly increased; therefore, it is necessary to design a backrest adjustable sofa with a simple structure and convenient adjustment.

Disclosure of Invention

The utility model overcomes the defects in the prior art and provides the adjustable seat with the backrest, which has a simple structure; through set up two at least front and back looks spaced connecting seats on the curb plate of back subassembly, then with the connecting seat assembly under the selective and different positions of mounting, can adjust back subassembly's front and back mounted position, position adjustable demand around the back is satisfied.

The technical scheme of the utility model is realized as follows:

a piece of seating furniture with adjustable backrest comprises a backrest component and a seat component; the backrest assembly comprises two side plates which are symmetrically arranged at the left and right, at least two connecting seats which are spaced from each other front and back are arranged on a single side plate, fixing pieces which extend upwards are arranged on two sides of the rear end of the seat assembly in a mirror image mode, and the connecting seats are configured to be matched with the fixing pieces in an inserting mode; the connecting seats with different front and back positions are selected to be connected with the fixing piece, so that the front and back installation positions of the backrest assembly can be adjusted.

Preferably, a mounting cushion block is further arranged between the connecting seat and the side plate, the mounting cushion block is connected to the side plate, and the connecting seat and the mounting cushion block are detachably connected. Under the fixed prerequisite of interval between the mounting, set up the installation cushion and can make the width of back subassembly expand for back subassembly width does not confine to, thereby satisfies different crowds' operation requirement.

Preferably, the backrest assembly is of a wooden frame structure, the mounting cushion block is detachably connected with the side plate, and the mounting cushion block is a molded plastic part; the connecting seat is attached to the inner side of the mounting cushion block, and the connecting seat and the mounting cushion block are integrally fixed on the side plate through screw connection. The mounting cushion block is a molded plastic part, namely the mounting cushion block can be subjected to modular processing production; compared with the installation cushion block which is made of wood and connected onto the side plate through the gun nails or screws in the prior art, the installation cushion block is more convenient to process and manufacture and lower in cost, and the production efficiency can be improved.

Preferably, the mounting cushion block is strip-shaped, a first mounting hole is preset on the mounting cushion block, and a second mounting hole is correspondingly arranged on the connecting seat; the mounting cushion block is connected with the side plate by bolts, and nuts are pre-embedded on the side plate; the bolt passes through the second mounting hole and the first mounting hole in sequence and is connected in the nut and the nut. When in processing, the first mounting hole can be preset on the mounting cushion block, so that the connection between the mounting cushion block and the connecting seat is quicker; and nuts are embedded in the side plates and connected by bolts and nuts, so that the connection is stable and labor-saving.

Preferably, the mounting cushion block is provided with a positioning column protruding towards the side plate, and the side plate is correspondingly provided with a positioning hole. Be equipped with reference column and locating hole for need not to look for the position, can directly fix a position.

Preferably, a positioning bulge protruding towards the mounting cushion block is arranged at the second mounting hole of the connecting seat; a positioning groove is correspondingly arranged at the first mounting hole of the mounting cushion block; the positioning protrusion is embedded in the positioning groove so that the first mounting hole and the second mounting hole are coaxial. The connecting seat can be easily positioned with the mounting cushion block, and the mounting time is saved.

Preferably, two parallel mounting cushion blocks are arranged on the inner side of the side plate at intervals in the front-back direction, and the distance between the two mounting cushion blocks is 5-20 cm.

Preferably, the mounting is the inserted sheet of metal material, and the connecting seat is the metal material, and corresponds on the connecting seat and is equipped with the slot that the opening is down, the inserted sheet is from up inserting in the slot and making inserted sheet and connecting seat relatively fixed down.

Preferably, the inserting sheet inclines backwards and upwards from bottom to top; the mounting cushion blocks are correspondingly and obliquely arranged on the side plates. So that the backrest assembly is arranged on the seat assembly with a proper backward inclining angle, and a user can lean more comfortably.

Preferably, an elastic sheet arranged along the length direction of the connecting seat is arranged in the slot, and the end part of the elastic sheet is tilted outwards; an avoiding window is correspondingly arranged on the inserting piece; the inserting sheet is inserted into the slot and the end part of the elastic sheet passes through the avoiding window; the inserted sheet continues upwards to insert in the slot, and the flexure strip will act on the inserted sheet and make the inserted sheet compress tightly in the slot. So that the inserting pieces can be tightly matched in the slots to eliminate shaking.

Preferably, the width of the insert is gradually reduced from the root of the insert to the free end of the insert; the width of the slot is gradually reduced along the direction from the opening of the slot to the inside of the slot. The inserting piece is more consistent with the connecting seat after being inserted and connected, and the connection is tight.

The design starting point, the idea and the beneficial effects of the utility model adopting the technical scheme are as follows:

firstly, two connecting seats which are spaced front and back are arranged on a side plate of the backrest component, and the connecting seats are connected and matched with the inserting pieces on the seat component to realize the assembly of the backrest component and the seat component; because the connecting seat sets up around, so can with the selective connecting seat assembly with under the different positions of inserted sheet, just also can adjust back mounted position around the back subassembly, satisfy back position adjustable demand.

Furthermore, an installation cushion block is arranged between the connecting seat and the side plate, the installation cushion block is not a common wooden cushion block, the installation cushion block is a molded plastic part, the processing and the manufacturing are convenient, and the modularized processing production can be carried out; compared with the structure that the mounting cushion block is made of wood blocks and is connected to the side plate through the gun nails or screws in the prior art, the processing cost is undoubtedly lower, and the production efficiency is higher; a first mounting hole can be preset on the mounting cushion block, and a second mounting hole is correspondingly arranged on the connecting seat; the mounting cushion block and the connecting seat can be mounted on the side plate together, so that mounting steps are saved, and the connection is more convenient; and the side plate is pre-embedded with a nut, the mounting cushion block and the connecting seat are connected with the side plate by bolts, and the connecting strength is high.

Moreover, two or more mounting cushion blocks can be arranged; the backrest assembly is provided with a plurality of mounting positions, so that the use requirements of different users are met; the function can be realized only by arranging the mounting cushion blocks on the side plates, so that the occupied size is small; compared with the prior art in which a complex adjusting mechanism is arranged in the backrest assembly, the backrest assembly has the advantages of lower cost and more simplified structure.

Drawings

FIG. 1 is a perspective view of a backrest assembly coupled to a seat assembly in accordance with an embodiment of the present invention;

FIG. 2 is a schematic perspective view of an embodiment of the present invention with the backrest assembly and the seat assembly disconnected;

FIG. 3 is a schematic perspective view of an embodiment of the present invention illustrating a mounting block attached to a side plate;

FIG. 4 is a schematic perspective view of the backrest assembly installed at the front position of the seat assembly in accordance with an embodiment of the present invention;

FIG. 5 is a schematic perspective view of the backrest assembly installed at the rear position of the seat assembly in accordance with the embodiment of the present invention;

FIG. 6 is a schematic perspective view of an embodiment of the present invention illustrating the positioning of the mounting blocks and the side plates;

FIG. 7 is a schematic perspective view of the embodiment of the present invention showing the fitting of the connecting socket and the mounting pad;

FIG. 8 is a schematic view of another perspective view of the connection seat and the mounting pad of the present invention;

FIG. 9 is a schematic perspective view illustrating an embodiment of the utility model in which the inserting sheet and the connecting seat are not connected;

fig. 10 is a schematic perspective view illustrating a connection between the insertion piece and the connection seat according to an embodiment of the present invention.

The various reference numbers are: a backrest assembly 1; a seat assembly 2; a side plate 3; installing a cushion block 4; inserting pieces 5; a connecting seat 6; a positioning column 7; positioning holes 8; a first mounting hole 9; a second mounting hole 10; a positioning boss 11; a positioning groove 12; a bolt 13; a slot 14; an elastic sheet 15; an avoidance window 16; and a nut 17.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

In the description of the present invention, the term "at least one" means one or more than one unless explicitly defined otherwise. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The specific embodiment of the utility model is as follows:

as shown in fig. 1 to 10, the present invention provides a backrest adjustable seating furniture comprising a backrest component 1 of a wooden frame structure and a seat component 2 of a metal frame structure; the backrest component 1 comprises side plates 3 which are positioned on the left side and the right side and are symmetrically arranged, wherein two mounting cushion blocks 4 which are spaced from each other front and back are arranged on the inner sides of the side plates 3; fixing parts extending upwards are arranged on two sides of the rear end of the seat part component 2 in a mirror image mode, and the fixing parts are inserting pieces 5 made of metal materials; a connecting seat 6 capable of being in inserting fit with the inserting sheet 5 is correspondingly arranged on the mounting cushion block 4, and the seat component 2 and the backrest component 1 are assembled together after the connecting seat 6 is in inserting fit with the inserting sheet 5; then, the inserting pieces 5 are selectively connected and matched with the mounting cushion blocks 4 at corresponding positions, so that the front and rear mounting positions of the backrest component 1 can be adjusted; the structure is very simple, and the adjustment mode is also very easy to operate.

As shown in fig. 2-8, the mounting pad 4 is detachably connected to the side plate 3, and the mounting pad 4 is a molded plastic part, i.e., is injection molded in a mold, so that the production efficiency is high and the processing cost is low; the mounting cushion block 4 is in a strip shape, a positioning column 7 protruding towards the side plate 3 is arranged on the mounting cushion block 4, and a positioning hole 8 is correspondingly arranged on the side plate 3; when the mounting cushion block 4 is connected with the side plate 3, the positioning column 7 is inserted into the positioning hole 8, and the mounting and positioning of the cushion block 4 are convenient to mount. Connecting seat 6 laminating is on one side at installation cushion 4 towards back subassembly 1 center, and connecting seat 6 is whole fixed on curb plate 3 through bolted connection with installation cushion 4, and specific theory: when the mounting cushion block 4 is formed, an upper mounting hole 9 and a lower mounting hole 9 for connecting bolts are preset on the mounting cushion block, and a second mounting hole 10 corresponding to the first mounting hole 9 is arranged on the connecting seat 6; a positioning bulge 11 protruding towards the mounting cushion block 4 is arranged at the second mounting hole 10 of the connecting seat 6, and a positioning groove 12 is correspondingly arranged at the first mounting hole 9 of the mounting cushion block 4; then, when the connecting seat 6, the mounting cushion block 4 and the side plate 3 are mounted, the connecting seat 6 is firstly attached to the mounting cushion block 4, and the positioning protrusion 11 is embedded in the positioning groove 12, so that the first mounting hole 9 and the second mounting hole 10 are coaxial; and then, bolts 13 sequentially penetrate through the second mounting holes 10 and the first mounting holes 9 and are connected to the side plates 3, nuts 17 are embedded in the side plates 3, and the bolts 13 are locked in the nuts 17 so that the connecting seat 6 and the mounting cushion block 4 are fixedly mounted on the side plates 3. The connecting seat 6 and the mounting cushion block 4 are connected by the same bolt 13, so that the mounting steps can be reduced, and the mounting is convenient and quick; and positioning structures are arranged between the mounting cushion block 4 and the side plate 3 and between the connecting seat 6 and the mounting cushion block 4, so that the positioning is not needed during mounting, the operation is convenient and the worry is saved. The key points are as follows: compared with the mode that the mounting cushion block 4 is made of wood blocks and is connected to the side plate 3 through gun nails or screws in the prior art, the wood blocks do not need to be cut one by one; the mould is easier to form, the cost is lower undoubtedly, and the processing production efficiency is higher; and can predetermine first mounting hole 9 on the installation cushion 4 for installation cushion 4 and connecting seat 6 can be installed on curb plate 3 together, connect more swiftly.

Further, the following steps are carried out: as shown in fig. 2-5, from bottom to top, the inserting sheet 5 is inclined backwards and upwards; the mounting cushion block 4 is correspondingly and obliquely arranged on the inner side of the side plate 3; the backrest assembly 1 is arranged on the seat assembly 2 to have a proper backward inclining angle, so that a user can lean more comfortably; in addition, the two mounting cushion blocks 4 on the single side plate 3 are spaced from each other front and back and are kept parallel, the distance between the two mounting cushion blocks 4 is between 5 and 20cm, in the embodiment, the distance between the two mounting cushion blocks 4 is 15cm, and then as shown in fig. 4 and 5, the front and back mounting positions of the chair back component 1 can be effectively adjusted by connecting and matching the inserting pieces 5 with the mounting cushion blocks 4 at different positions, so that the requirement of front and back adjustability of the backrest is met; and the included angle between the backrest assembly 1 and the horizontal plane is approximately 105 degrees, so that the backrest can be more fit to the back of a human body.

As shown in fig. 9-10, the connecting seat 6 and the inserting piece 5 are in insertion fit, and the two can be conveniently mounted and dismounted, specifically: the connecting seat 6 is also made of metal, a slot 14 with a downward opening is formed in the connecting seat 6, and the inserting piece 5 can be inserted into the slot 14 from bottom to top; and the width of the inserting sheet is gradually reduced from the root part of the inserting sheet 5 to the direction of the free end of the inserting sheet; along the direction from the opening of the slot 14 to the inside of the slot 14, the width of the slot 14 is gradually reduced, so that the connecting seats 6 of the inserting pieces 5 are more matched and connected tightly after being inserted; and the connection strength is higher, and the stress is better. In addition, the inserting sheet 5 can be limited in the slot 14 after being inserted into the slot 14, specifically: an elastic piece 15 extending downwards along the length direction of the connecting seat 6 is arranged at the upper part of the slot 14, the lower end of the elastic piece 15 tilts outwards, and an avoiding window 17 for the elastic piece 15 to pass through is correspondingly arranged at the upper part of the inserting piece 5; when the inserting piece 5 is inserted into the inserting slot 14, the elastic piece 15 passes through the avoiding window 17; the inserting sheet 5 is continuously inserted upwards into the slot 14; the elastic piece 15 will act on the inserting piece 5 to press the inserting piece 5 in the slot 14; make the more stable cooperation of inserted sheet 5 in connecting seat 6, connect inseparabler, can eliminate and rock, and under the action of gravity of back subassembly 1, inserted sheet 5 will stabilize and peg graft in slot 14. In addition, if the installation position of the backrest component 1 needs to be adjusted, the inserting piece 5 can be separated from the connecting seat 6 only by lifting the backrest component 1 upwards; when the installation is carried out again, the inserting pieces 5 are only required to be aligned with the inserting grooves 14 again for inserting; make the installation and the dismantlement of inserted sheet 5 and connecting seat 6 all very convenient, the user can be very convenient carry out position control to back subassembly 1, and operate very laborsaving light and handy.

The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the present invention, the person skilled in the art should not inventively design the similar structural modes and embodiments to the technical solution, and shall fall into the protection scope C of the present invention.

Claims

1. A seat with an adjustable backrest is characterized in that: comprises a backrest component and a seat component; the backrest assembly comprises two side plates which are symmetrically arranged at the left and right, at least two connecting seats which are spaced from each other front and back are arranged on a single side plate, fixing pieces which extend upwards are arranged on two sides of the rear end of the seat assembly in a mirror image mode, and the connecting seats are configured to be matched with the fixing pieces in an inserting mode; the connecting seats with different front and back positions are selected to be connected with the fixing piece, so that the front and back installation positions of the backrest assembly can be adjusted.

2. The adjustable back rest seating of claim 1, wherein: and a mounting cushion block is also arranged between the connecting seat and the side plate, the mounting cushion block is connected on the side plate, and the connecting seat is detachably connected with the mounting cushion block.

3. The adjustable back rest seating of claim 2, wherein: the backrest assembly is of a wood frame structure, the mounting cushion blocks are detachably connected with the side plates, and the mounting cushion blocks are molded plastic parts; the connecting seat is attached to the inner side of the mounting cushion block, and the connecting seat and the mounting cushion block are integrally fixed on the side plate through screw connection.

4. The adjustable back rest seating of claim 3, wherein: the mounting cushion block is in a strip shape, a first mounting hole is preset in the mounting cushion block, and a second mounting hole is correspondingly arranged on the connecting seat; the mounting cushion block is connected with the side plate by bolts, and nuts are pre-embedded on the side plate; the bolt passes through the second mounting hole and the first mounting hole in sequence and is connected in the nut.

5. The adjustable back rest seating of claim 3, wherein: the mounting cushion block is provided with a positioning column protruding towards the side plate, and the side plate is correspondingly provided with a positioning hole.

6. The adjustable back rest seating of claim 4, wherein: a positioning bulge protruding towards the mounting cushion block is arranged at the second mounting hole of the connecting seat; a positioning groove is correspondingly arranged at the first mounting hole of the mounting cushion block; the positioning protrusion is embedded in the positioning groove so that the first mounting hole and the second mounting hole are coaxial.

7. The adjustable back rest seating of claim 3, wherein: two parallel mounting cushion blocks which are spaced from each other in front and back are arranged on the inner sides of the side plates, and the distance between the two mounting cushion blocks is 5-20 cm.

8. The adjustable back rest seating of claim 2, wherein: the mounting is the inserted sheet of metal material, and the connecting seat is the metal material, and corresponds on the connecting seat and is equipped with opening slot down, the inserted sheet is from up inserting in the slot and making inserted sheet and connecting seat relatively fixed down.

9. The adjustable back rest seating of claim 8, wherein: from bottom to top, the inserting sheet inclines backwards and upwards; the mounting cushion blocks are correspondingly and obliquely arranged on the side plates.

10. The adjustable back rest seating of claim 8, wherein: an elastic sheet arranged along the length direction of the connecting seat is arranged in the slot, and the end part of the elastic sheet is tilted outwards; an avoidance window is correspondingly arranged on the inserting piece; the inserting sheet is inserted into the slot and the end part of the elastic sheet passes through the avoiding window; the inserted sheet continues upwards to insert in the slot, and the flexure strip will act on the inserted sheet and make the inserted sheet compress tightly in the slot.

11. The adjustable back rest seating of claim 8, wherein: the width of the inserting sheet is gradually reduced from the root part of the inserting sheet to the free end of the inserting sheet; the width of the slot is gradually reduced along the direction from the opening of the slot to the inside of the slot.