CN213940250U

CN213940250U - Comfortable sofa with adjustable backrest

Info

Publication number: CN213940250U
Application number: CN202120029009.0U
Authority: CN
Inventors: 王艳萍
Original assignee: Shunde Foshan Furniture Co ltd
Current assignee: Shunde Foshan Furniture Co ltd
Priority date: 2021-01-06
Filing date: 2021-01-06
Publication date: 2021-08-13
Anticipated expiration: 2031-01-06

Abstract

The application relates to a comfortable sofa with adjustable back, it includes: a sofa frame; the backrest frame is arranged on the sofa frame; and the sofa cushion is arranged on the sofa frame, a displacement device for displacing the backrest frame along the front-back direction of the sofa frame is arranged in the sofa frame, a connecting plate is arranged at the bottom of the backrest frame, a connecting rod is arranged at the bottom of the connecting plate, and one end, far away from the connecting plate, of the connecting rod is connected with the displacement device. The backrest frame adjusting device has the effects of adjusting the use position of the backrest frame and adjusting the sliding direction of the backrest frame.

Description

Comfortable sofa with adjustable backrest

Technical Field

The application relates to the technical field of furniture, in particular to a comfortable sofa with an adjustable backrest.

Background

The sofa is a common furniture, and people often sit, lie and lean against the sofa, watch TV, play mobile phones or accompany with family on the sofa, so as to relieve fatigue and enable the body and mind to have a rest.

Currently, existing sofas generally include: a sofa frame, a backrest frame, a sofa cushion and a backrest cushion. Generally, in order to improve the comfort of the sofa, the cushion and the backrest are generally made of flexible materials and have certain flattening rebound effect.

Sofas with adjustable seat depths are also increasingly available on the market, but the seat depths of these sofas are usually adjusted to a preset position by means of a snap-fit or the like. The range of seat depth adjustment that can be achieved with this type of sofa is limited and often the back of the sofa is bulky in shape, making it laborious for the average user to adjust the position of the back and, in addition, the service life of this type of sofa is shortened due to repeated removal or attachment.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: the seat depth (i.e., the distance of the back rest relative to the front edge of the sofa) of a sofa that is preferred or appropriate varies as each individual's body shape varies and as each individual is accustomed to a different angle. For sofas with fixed seating depths, persons with excessively large or small body sizes may experience significant discomfort when seated or lying upon, which is to be further improved.

SUMMERY OF THE UTILITY MODEL

In order to adjust the using position of the backrest frame and improve the comfort level of the sofa, the application provides a comfortable sofa with an adjustable backrest.

The application provides a comfortable type sofa with adjustable back adopts following technical scheme:

a comfort sofa with adjustable backrest, comprising: a sofa frame; the backrest frame is arranged on the sofa frame; and the sofa cushion is arranged on the sofa frame, a displacement device used for enabling the backrest frame to displace along the front and back directions of the sofa frame is arranged in the sofa frame, a connecting plate is arranged at the bottom of the backrest frame, a connecting rod is arranged at the bottom of the connecting plate, and one end, far away from the connecting plate, of the connecting rod is connected with the displacement device.

By adopting the technical scheme, the backrest frame can be conveniently pushed as required under the connecting action of the connecting rod and the connecting plate by arranging the displacement device so as to adjust the use position of the backrest frame on the sofa, and the backrest frame can be ensured to stably slide on the sofa frame. Through the scheme, the position of the backrest frame can be conveniently adjusted according to the habit and the body shape of a user.

Preferably, the displacement device comprises: the two guide rails are arranged in the sofa frame, and the length direction of the two guide rails is consistent with the length direction of the sofa frame; the displacement block is connected in the guide rail in a sliding manner; the mounting plate is arranged between the two displacement blocks; and the limiting structure is arranged on the guide rail and used for limiting the moving direction of the mounting plate, wherein the top of the mounting plate is connected with the bottom end of the connecting rod.

By adopting the technical scheme, the guide rail and the mounting plate are arranged, when the position of the backrest frame is required to be adjusted, the backrest frame is pushed, the mounting plate can move in the guide rail, the stability of the backrest frame in the moving process is improved, and the movable direction of the backrest frame can be adjusted as required by arranging the limiting structure.

Preferably, the limiting structure comprises a limiting component for limiting the backward movement of the mounting plate and an adjusting component for adjusting the sliding direction of the mounting plate.

By adopting the technical scheme, when the backrest frame is used, the limiting assembly can limit the backrest frame to move forwards only but not retreat. The backrest frame can be conveniently displaced back and forth along the length direction of the sofa frame by opening the adjusting component.

Preferably, the limiting assembly includes a first limiting member and a second limiting member that cooperate with each other, and the first limiting member includes: the two limiting pieces are arranged on one side of the mounting plate, which is far away from the connecting rod; the limiting rods are horizontally arranged on the side walls of the two limiting pieces; the connecting spring is arranged on one side of the limiting rod, which is far away from the mounting plate; and set up in connecting spring keeps away from the guide block of gag lever post one end, the second locating part includes: the limiting plate is arranged between the two guide rails, and the length direction of the limiting plate is consistent with the length direction of the guide rails; and the plurality of guide teeth are arranged on one side of the limiting plate close to the mounting plate and are matched with the guide blocks.

By adopting the technical scheme, the guide block can only move along the front end of the sofa frame by clamping the guide block in the clamping groove of the guide teeth, the guide block can move up and down under the connecting action of the connecting spring and the limiting rod so as to conveniently move on the guide teeth, and under the connecting action of the limiting piece, the moving direction of the mounting plate and the backrest frame can be limited by limiting the moving direction of the guide block.

Preferably, the adjusting component is arranged on the limiting plate and the limiting plate, and the adjusting component comprises: the supporting plates are arranged at two ends of the side wall of the limiting plate; the fixing pieces are arranged on one sides of the supporting plates, which are close to each other, and the length direction of the fixing pieces is consistent with the length direction of the guide rail; and run through and set up in two the adjustment tank of spacing piece lateral wall, wherein, the gag lever post slide connect in the adjustment tank, two interval more than or equal to between the spacing piece the thickness of stationary blade, the stationary blade is through promoting the gag lever post is followed the adjustment tank slides to different positions so that the guide block gets into in the direction tooth or make the guide block follow break away from in the direction tooth.

Adopt above-mentioned technical scheme, through setting up the backup pad, stationary blade and adjustment tank, when promoting the back frame, the mounting panel is along the length direction displacement of limiting plate, get into between two spacing pieces as the stationary blade, and after striking the gag lever post, can make the gag lever post slide along the adjustment tank, as required, change the height of gag lever post on the spacing piece, thereby change the height of guide block, and then can make guide block and direction tooth separation, can follow the length direction round trip movement back frame of guide rail, also can make the guide block in the tooth's socket of direction tooth, make the guide block only can follow the removal of sofa frame front end.

Preferably, the guide tooth includes a limiting surface and a guide surface, the adjusting groove includes a first clamping groove and a second clamping groove, the first clamping groove is communicated with the second clamping groove and is in an inverted V shape, the first clamping groove is located on the same side of the limiting surface, the second clamping groove is located on the same side of the guide surface, and the tail end of the first clamping groove is higher than the tail end of the second clamping groove.

By adopting the technical scheme, when the limiting rod slides to the tail end of the first clamping groove, the guide block is separated from the guide teeth, so that the backrest frame can be conveniently slid; when the limiting rod slides to the tail end of the second clamping groove, the guide block enters between the limiting surface and the guide surface, so that the guide block can only move along the direction of the guide surface, the mounting plate and the backrest frame can only move along the guide surface, when a user leans on the backrest frame, the backrest frame cannot move backwards, and the stability of the backrest frame can be improved.

Preferably, a plurality of sliding pieces are arranged in the guide rail, a plurality of balls are arranged on the sliding pieces, and the displacement block is connected with the sliding pieces.

By adopting the technical scheme, the smoothness of the movement of the displacement block on the guide rail can be improved by arranging the sliding piece and the ball, so that the smoothness of the movement of the mounting plate can be improved, the smoothness of the backrest frame in the movement process can be further improved, the labor intensity of workers is reduced, and the backrest frame is convenient and fast to use.

Preferably, the length of the guide tooth is smaller than that of the limit plate.

By adopting the technical scheme, after the fixing piece impacts the limiting rod, enough space is reserved in the part without the guide teeth, so that the guide block can be conveniently popped out from the limiting piece, and the possibility that the guide block is clamped to influence the limiting effect of the backrest frame is reduced.

In summary, the present application includes at least one of the following beneficial technical effects:

by arranging the guide rail and the mounting plate, when the position of the backrest frame needs to be adjusted, the backrest frame is pushed to adjust the use position of the backrest frame, and the mounting plate can move in the guide rail under the connecting action of the connecting rod and the connecting plate, so that the stability of the backrest frame in the moving process is improved;

the backrest frame can only move along the front end of the sofa frame without retreating by arranging the guide teeth and the guide block, and the backrest frame can be moved in a single direction by clamping the guide block and the guide teeth or separated by separating the guide block and the guide teeth by arranging the adjusting groove and the fixing piece.

Drawings

FIG. 1 is a schematic overall structure of the present application;

FIG. 2 is a schematic view of the interior of the overall structure of the present application;

FIG. 3 is an enlarged view at A in FIG. 2;

FIG. 4 is an enlarged view at B in FIG. 3;

FIG. 5 is a schematic view of the connection structure of the connecting spring and the guide block in the present application;

fig. 6 is a schematic view of the connection structure of the guide block and the guide teeth in the present application.

Description of reference numerals: 1. a sofa frame; 11. a backrest frame; 12. a sofa cushion; 13. a backrest cushion; 14. a connecting plate; 15. a connecting rod; 2. a guide rail; 21. a displacement block; 211. a sliding sheet; 212. a ball bearing; 213. a right-angle connecting sheet; 22. mounting a plate; 3. a limiting sheet; 31. a limiting rod; 32. a connecting spring; 33. a guide block; 34. a limiting plate; 35. a guide tooth; 351. a limiting surface; 352. a guide surface; 4. a fixing sheet; 41. an adjustment groove; 411. a first card slot; 412. a second card slot; 42. and a support plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses comfortable type sofa with adjustable back. Referring to fig. 1 and 2, the back rest adjustable comfortable sofa comprises a sofa frame 1, a back rest frame 11 and a sofa cushion 12, wherein the sofa cushion 12 is horizontally installed on a bearing surface of the sofa frame 1, the back rest frame 11 is arranged on the bearing surface of the sofa frame 1, and the back rest cushion 13 is installed on the back rest frame 11, in the embodiment, an included angle between the bearing surface of the back rest frame 11 and the bearing surface of the sofa frame 1 is an obtuse angle, compared with the upright back rest frame 11, the comfortable sofa is more suitable for the physical posture of a person leaning on the back rest cushion 13, and the comfort of the sofa is improved.

In this embodiment, the end of the sofa frame 1 where the backrest frame 11 is installed is taken as the end, and the end where the user places his feet is taken as the front end.

Referring to fig. 2 and 3, a displacement device is arranged inside the sofa frame 1, a connecting plate 14 is fixed at the bottom of the backrest frame 11, a connecting rod 15 is fixed at the bottom of the connecting plate 14, and one end of the connecting rod 15 far away from the connecting plate 14 is connected with the displacement device, the connecting rod 15 in the embodiment is bent, so that the pressure bearing capacity of the connecting rod 15 can be improved, and the stability of the backrest frame 11 can be improved. By opening the displacement device, the backrest frame 11 can be driven to move back and forth along the front and back directions of the sofa frame 1, so as to adjust the depth of the backrest frame 11.

The displacement device in this embodiment includes a guide rail 2, a displacement block 21, a mounting plate 22, and a limit structure. Wherein, guide rail 2 sets up to two, and two equal fixed mounting of guide rail 2 are inside sofa frame 1, and two guide rail 2's length direction all is unanimous with sofa frame 1's length direction, and in this embodiment, the one side that two guide rail 2 are close to each other is the opening setting.

The two displacement blocks 21 are arranged, and the two displacement blocks 21 are respectively connected in the guide rail 2 in a sliding manner. In addition, a plurality of sliding pieces 211 are slidably connected in the guide rail 2, and a plurality of balls 212 are rotatably mounted on each sliding piece 211, wherein the balls 212 are positioned between the displacement block 21 and the guide rail 2, so that sliding friction between the displacement block 21 and the guide rail 2 can be converted into rolling friction, and the smoothness of movement of the displacement block 21 on the guide rail 2 can be improved, thereby improving the smoothness of the mounting plate 22 and the backrest frame 11 during movement, and facilitating adjustment of the position of the backrest frame 11 by a user.

A right-angle connecting piece 213 is fixed on the side of the displacement block 21 close to each other, the mounting plate 22 is fixed on the side of the right-angle connecting piece 213 close to the backrest frame 11, and the top of the mounting plate 22 is connected with the bottom end of the connecting rod 15.

By holding the two sides of the backrest cushion 13 and moving the backrest frame 11 along the front-back direction of the sofa frame 1, the mounting plate 22 can move along the front-back direction of the guide rail 2 under the connecting action of the connecting plate 14 and the connecting rod 15, so that the stability of the backrest frame 11 in the moving process can be improved, and the use position of the backrest frame 11 can be conveniently and laborsavingly adjusted under the condition that the backrest frame 11 is always connected with the sofa frame 1.

The limiting structure is arranged between the two guide rails 2, and in the process of moving the backrest frame 11, the displacement direction of the mounting plate 22 can be limited to limit the moving direction of the backrest frame 11, so that the stability of the backrest frame 11 in the use process can be improved. When the user leans against the back rest frame 11, the back rest frame 11 is less likely to be pushed backward by gravity.

The limiting structure in the embodiment comprises a limiting assembly and an adjusting assembly. The limiting component can limit the mounting plate 22 to move backwards on the sofa frame 1 so as to improve the stability of the backrest frame 11 in the using process; the adjustment assembly can adjust the sliding direction of the mounting plate 22, i.e. the mounting plate 22 can only move forward, or the mounting plate 22 can slide back and forth.

The limiting assembly in this embodiment includes a first limiting member and a second limiting member, and the first limiting member and the second limiting member are matched with each other to limit the mounting plate 22 from moving backward.

Referring to fig. 4 and 5, the first limiting member in the present embodiment includes: spacing piece 3, gag lever post 31, coupling spring 32 and guide block 33.

Spacing piece 3 is fixed in the one side that connecting rod 15 was kept away from to mounting panel 22, and in this embodiment, spacing piece 3 sets up to two and the cross-section of two spacing pieces 3 all is L shape, reserves the clearance between two spacing pieces 3. The limiting rod 31 is horizontally arranged on the side walls of the two limiting sheets 3, the connecting spring 32 is fixed on one side of the limiting rod 31 far away from the mounting plate 22, and the guide block 33 is fixed on one end of the connecting spring 32 far away from the limiting rod 31.

Referring to fig. 4 and 6, the second limiting member in the present embodiment includes: a limit plate 34 and guide teeth 35.

The limiting plate 34 is fixed on the sofa frame 1, the limiting plate 34 is located between the two guide rails 2, the limiting plate 34 is located below the mounting plate 22, and the length direction of the limiting plate 34 is consistent with the length direction of the guide rails 2.

The direction tooth 35 is fixed in the one side that limiting plate 34 is close to mounting panel 22 and is a plurality of, and in this embodiment, the installation length of direction tooth 35 is less than the length of limiting plate 34, when spacing piece 3 card was established on stationary blade 4, makes things convenient for stationary blade 4 striking gag lever post 31 after, has the headspace to make things convenient for guide block 33 to pop out from between the spacing piece 3, reduces the guide block 33 card possibility between spacing piece 3. The guide teeth 35 are located below the spacing piece 3. The tooth grooves of the guide teeth 35 are matched with the guide blocks 33, and the guide blocks 33 can be clamped in the tooth grooves of the guide teeth 35.

In this embodiment, the guide teeth 35 include a limiting surface 351 and a guide surface 352, a gap between the limiting surface 351 and the guide surface 352 is a tooth slot of the guide teeth 35, wherein the limiting surface 351 is perpendicular to a plate surface of the limiting plate 34, the guide surface 352 is an inclined surface, the guide surface 352 is inclined upward from the top of the limiting plate 34, and the guide surface 352 faces the front end of the sofa frame 1, when the guide block 33 is clamped between the limiting surface 351 and the guide surface 352, the back frame 11 is pushed, and the guide block 33 can only move towards the front end of the sofa frame 1, so that the back frame 11 can only move forward, and the stability of the back frame 11 in the using process is improved.

The adjusting component is arranged on the limiting plate 3 and the limiting plate 34, and the adjusting component in the embodiment comprises a fixing plate 4 and an adjusting groove 41.

All be fixed with the backup pad 42 at limiting plate 34 lateral wall both ends, the stationary blade 4 is fixed in the one side that backup pad 42 is close to each other, and in this embodiment, backup pad 42 slope sets up, under the prerequisite of the stability of guaranteeing stationary blade 4, can save material. The longitudinal direction of the fixing piece 4 coincides with the longitudinal direction of the guide rail 2. The distance between the two limiting pieces 3 is larger than or equal to the thickness of the fixing piece 4, and the fixing piece 4 can be inserted into the gap between the two limiting pieces 3.

The adjusting groove 41 is horizontally arranged on the side walls of the two limiting pieces 3 in a penetrating manner, the size of the adjusting groove 41 is matched with that of the limiting rod 31, and the limiting rod 31 can slide in the adjusting groove 41.

The adjusting slot 41 in this embodiment includes a first slot 411 and a second slot 412, the first slot 411 is communicated with the second slot 412, and the adjusting slot 41 is integrally in an inverted V shape, with respect to one tooth space of the guiding tooth 35, the first slot 411 is on the same side as the limiting surface 351, the second slot 412 is on the same side as the guiding surface 352, and the end of the first slot 411 is higher than the end of the second slot 412.

When the fixing piece 4 is inserted between the two limiting pieces 3, the limiting rod 31 can be pushed to slide along the adjusting groove 41, so that the limiting rod 31 can be positioned at the tail end of the first clamping groove 411, the guide block 33 enters the tooth groove of the guide tooth 35, the guide block 33 is separated from the guide tooth 35, and the mounting plate 22 can be conveniently slid back and forth, so that the position of the backrest frame 11 can be conveniently adjusted; or the stop rod 31 is positioned at the end of the second slot 412, so that the guide block 33 can only move towards the front end of the sofa frame 1, and the guide block 33 can only move along the front end of the sofa frame 1 under the guiding action of the guide surface 352.

When the guide block 33 slides along the guide surface 352, the connecting spring 32 is compressed to move in the direction of separating from the guide teeth 35, when the guide block 33 enters the tooth grooves adjacent to the guide teeth 35, the guide block 33 enters the adjacent tooth grooves again under the action of the connecting spring 32, and under the blocking action of the limiting surface 351, the guide block 33 cannot retreat, so that the backrest frame 11 cannot retreat, therefore, when a person leans on the backrest frame 11, the backrest frame 11 cannot retreat, and the stability of the backrest frame 11 in the using process is improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A comfort sofa with adjustable backrest, comprising: a sofa frame (1); a backrest frame (11) arranged on the sofa frame (1); and set up in sofa cushion (12) on sofa frame (1), its characterized in that, sofa frame (1) inside is provided with and is used for making back frame (11) are followed the displacement device of sofa frame (1) fore-and-aft direction displacement, back frame (11) bottom is provided with connecting plate (14), connecting plate (14) bottom is provided with connecting rod (15), the one end that connecting rod (15) kept away from connecting plate (14) with the displacement device is connected.

2. The comfort sofa of claim 1, wherein the displacement device comprises: the two guide rails (2) are arranged in the sofa frame (1) and the length direction of the two guide rails is consistent with the length direction of the sofa frame (1); a displacement block (21) connected in the guide rail (2) in a sliding manner; the mounting plate (22) is arranged between the two displacement blocks (21); and the limiting structure is arranged on the guide rail (2) and used for limiting the moving direction of the mounting plate (22), wherein the top of the mounting plate (22) is connected with the bottom end of the connecting rod (15).

3. The comfort sofa with adjustable backrest according to claim 2, characterized in that the limiting structure comprises a limiting component for limiting the backward movement of the mounting plate (22) and an adjusting component for adjusting the sliding direction of the mounting plate (22).

4. The comfort sofa of claim 3, wherein the stop assembly comprises a first stop and a second stop cooperating with each other, the first stop comprising: the two limiting sheets (3) are arranged on one side of the mounting plate (22) far away from the connecting rod (15); the limiting rods (31) are horizontally arranged on the side walls of the two limiting pieces (3); the connecting spring (32) is arranged on one side, away from the mounting plate (22), of the limiting rod (31); and a guide block (33) arranged at one end, far away from the limiting rod (31), of the connecting spring (32), wherein the second limiting part comprises: the limiting plate (34) is arranged between the two guide rails (2) and the length direction of the limiting plate is consistent with that of the guide rails (2); and the guide teeth (35) are arranged on one side, close to the mounting plate (22), of the limiting plate (34) and are matched with the guide blocks (33).

5. The comfort sofa with adjustable backrest according to claim 4, characterized in that the adjusting component is arranged on the stop plate (3) and the stop plate (34), the adjusting component comprises: support plates (42) arranged at two ends of the side wall of the limit plate (34); the fixing pieces (4) are arranged on one sides, close to each other, of the supporting plates (42), and the length direction of the fixing pieces is consistent with that of the guide rails (2); and run through set up in two regulating groove (41) of spacing piece (3) lateral wall, wherein, gag lever post (31) slide connect in regulating groove (41), two interval more than or equal to between spacing piece (3) the thickness of stationary blade (4), stationary blade (4) are through promoting gag lever post (31) are followed regulating groove (41) slide to different positions so that guide block (33) get into in direction tooth (35) or make guide block (33) are followed break away from in direction tooth (35).

6. The backrest-adjustable comfortable sofa according to claim 5, wherein the guiding teeth (35) comprise a limiting surface (351) and a guiding surface (352), the adjusting groove (41) comprises a first clamping groove (411) and a second clamping groove (412), the first clamping groove (411) is communicated with the second clamping groove (412) and is in an inverted V shape, the first clamping groove (411) is on the same side of the limiting surface (351), the second clamping groove (412) is on the same side of the guiding surface (352), and the end of the first clamping groove (411) is higher than the end of the second clamping groove (412).

7. The comfort sofa with adjustable backrest according to claim 2, characterized in that a plurality of glide plates (211) are arranged in the guide rail (2), a plurality of balls (212) are arranged on the glide plates (211), wherein the displacement block (21) is connected with the glide plates (211).

8. Comfort sofa with adjustable backrest according to claim 4, characterised in that the length of the guiding tooth (35) is smaller than the length of the limit plate (34).