CN220293325U - Sofa with adjustable backrest - Google Patents

Abstract

The utility model relates to the technical field of sofas, and discloses a sofa with an adjustable backrest, which solves the problem that the backrest is inconvenient to adjust and influences the use effect of a user in the prior sofa.

Description

Sofa with adjustable backrest

Technical Field

The utility model belongs to the technical field of sofas, and particularly relates to a sofa with an adjustable backrest.

Background

The sofa is an external word, is a multi-seat chair with soft cushions, is provided with a backrest chair with springs or thick foam plastic and the like, is provided with armrests on two sides, is a soft furniture, and is generally composed of a base, armrests and a backrest, and most of the sofa backrest is fixedly connected with the base, so that the sofa can keep a sitting posture for a long time, the vertebra is easy to be influenced, the backrest angle is a fixed angle, and the sofa is inconvenient to adjust according to the requirements of a user, and the use of the user is influenced. Such sofas are not convenient for backrest adjustment, affecting the user's use.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the utility model provides the sofa with the adjustable backrest, which effectively solves the problems that the prior sofa is inconvenient to adjust the backrest and affects the using effect of a user.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a sofa of adjustable back, includes the seatpad, the seatpad both sides all are connected with the curb plate, seatpad upper end one side is connected with the service creeper, the service creeper both sides all rotate and are connected with the pivot, pivot one end runs through and extends to the inside department of curb plate, the pivot is connected with the curb plate inner wall rotation, the fixed orifices has been seted up to pivot outside one side, pivot outside one side is connected with adjusting part, adjusting part is including installing the dwang in the outside both sides of pivot, dwang one end is connected with the plectane.

Preferably, the middle part of plectane one side through connection has the arc pole, arc pole both ends all are connected with the extension board, extension board one end is connected with curb plate inner wall one side, the outside one side cover of arc pole is equipped with first spring, first spring one end is connected with extension board one side, the first spring other end is connected with plectane one side.

Preferably, the outside cover of pivot is equipped with the fixing base, fixing base one end and curb plate fixed connection, inside one side of fixing base is connected with the movable plate, movable plate one end is connected with the joint piece, joint piece one end extends to the inside department of fixed orifices.

Preferably, both sides of one end of the moving plate are connected with telescopic rods, a second spring is sleeved outside the telescopic rods, one end of the second spring is connected with one side of the inner wall of the fixed seat, and the other end of the second spring is connected with one side of the moving plate.

Preferably, fixing base one side through connection has the clamp plate, clamp plate one end is connected with the push plate, push plate one end and movable plate one side contact, the clamp plate both sides all are connected with the stopper, stopper one side middle part through connection has the gag lever post, gag lever post both ends all are connected with the fixing base inner wall.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the pressing plate is pressed towards one side of the rotating shaft through the arrangement of the adjusting component, the pushing plate drives the moving plate to move, so that the moving plate drives the clamping block to further enable the clamping block to move to the outside of the fixing hole, at the moment, the rotating shaft is in an active state, the lying plate is moved according to the use requirement, the lying plate is rotated to drive the circular plate to slide, the lying plate is supported in the adjusting process under the elastic potential energy of the first spring, the adjusting is convenient, the pressing plate is loosened after the adjusting is finished, the moving plate drives the clamping block to move to the inside of the fixing hole under the elastic potential energy of the second spring, and then the lying plate is fixed, so that the angle of the lying plate can be adjusted according to the use requirement, and the lying plate is convenient for a user to use.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model.

In the drawings:

FIG. 1 is a front view of an adjustable back rest sofa of the present utility model;

FIG. 2 is a schematic view of a connection structure of a rotating shaft according to the present utility model;

FIG. 3 is a schematic view of the structure of the fixing hole of the present utility model;

FIG. 4 is a schematic view of the structure of the adjusting assembly of the present utility model;

fig. 5 is a schematic diagram of a connection structure of the clamping block of the present utility model.

In the figure: 1. a seat cushion; 2. a side plate; 3. a lying plate; 4. a rotating shaft; 5. a fixing hole; 6. an adjustment assembly; 61. a rotating lever; 62. a circular plate; 63. an arc-shaped rod; 64. a support plate; 65. a first spring; 66. a fixing seat; 67. a moving plate; 68. a clamping block; 69. a telescopic rod; 610. a second spring; 611. a pressing plate; 612. a pushing plate; 613. a limiting block; 614. and a limit rod.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-5.

The embodiment of the application discloses a sofa with an adjustable backrest. Referring to fig. 1-3, including seatpad 1, seatpad 1 both sides all are connected with curb plate 2, seatpad 1 upper end one side is connected with service creeper 3, service creeper 3 is leaned on by the user, service creeper 3 both sides all rotate and are connected with pivot 4, when pivot 4 is unfixed, it drives pivot 4 rotation to remove service creeper 3, make the angle of service creeper 3 adjust, pivot 4 one end runs through and extends to curb plate 2 inside department, pivot 4 rotates with curb plate 2 inner wall to be connected, fixed orifices 5 have been seted up to pivot 4 outside one side, under the cooperation of fixed orifices 5 and joint piece 68, make pivot 4 fix or move about, pivot 4 outside one side is connected with adjusting part 6, adjusting part 6 is including installing the dwang 61 in pivot 4 outside both sides, dwang 61 one end is connected with pler 62.

Referring to fig. 4-5, the middle part of one side of the circular plate 62 is connected with an arc rod 63 in a penetrating way, the arc rod 63 is arranged in an arc-shaped structure, the circular plate 62 slides along the outer part of the arc rod 63 under the driving of the rotating rod 61, both ends of the arc rod 63 are connected with a support plate 64, one end of the support plate 64 is connected with one side of the inner wall of the side plate 2, one side of the outer part of the arc rod 63 is sleeved with a first spring 65, the circular plate 62 moves to squeeze the first spring 65, the lying plate 3 is supported under the elastic potential energy of the first spring 65, the lying plate 3 is prevented from being unsupported when the angle is regulated, the lying plate 3 is easy to lie down horizontally under the gravity of the lying plate 3, the angle is inconvenient to regulate, one end of the first spring 65 is connected with one side of the support plate 64, the other end of the first spring 65 is connected with one side of the circular plate 62, one end of the fixing seat 66 is fixedly connected with the side plate 2, one side of the fixing seat 66 is connected with a movable plate 67, one end of the moving plate 67 is connected with a clamping block 68, the clamping block 68 changes the state of the clamping block 68 and the fixed hole 5 under the movement of the moving plate 67, one end of the clamping block 68 extends to the inside of the fixed hole 5, two sides of one end of the moving plate 67 are connected with telescopic rods 69, the moving plate 67 moves to squeeze the telescopic rods 69, the telescopic rods 69 shrink, the moving plate 67 is stable under the expansion of the telescopic rods 69 when moving, a second spring 610 is sleeved outside the telescopic rods 69, one end of the second spring 610 is connected with one side of the inner wall of the fixed seat 66, the other end of the second spring 610 is connected with one side of the moving plate 67, one side of the fixed seat 66 is connected with a pressing plate 611 in a penetrating way, one end of the pressing plate 611 is connected with a pushing plate 612, the pressing plate 611 can only move linearly under the limit of the limiting rods 614 and the limiting block 613, one end of the pushing plate 612 is contacted with one side of the moving plate 67, the clamp plate 611 both sides all are connected with stopper 613, and stopper 613 one side middle part through connection has gag lever post 614, and stopper 613 slides along gag lever post 614 outside, and gag lever post 614 carries out the spacing to stopper 613, and gag lever post 614 both ends all are connected with fixing base 66 inner wall.

The implementation principle of the sofa with the adjustable backrest is as follows: when the lying plate 3 is required to be angularly adjusted, the pressing plate 611 is pressed to one side of the rotating shaft 4, the pressing plate 611 can only linearly move under the limit of the limiting rod 614 and the limiting block 613, the pressing plate 611 can linearly drive the pushing plate 612 to move, the pushing plate 612 drives the moving plate 67 to move, the moving plate 67 moves and presses the second spring 610, the second spring 610 is compressed under pressure, the moving plate 67 drives the clamping block 68, the clamping block 68 is further moved to the outside of the fixed hole 5, the rotating shaft 4 is in an active state, the lying plate 3 is moved according to the use requirement, the lying plate 3 is rotated to drive the circular plate 62 to slide, the circular plate 62 slides and presses the first spring 65, the lying plate 3 is supported in the adjusting process under the elastic potential energy of the first spring 65, the adjustment is convenient, the pressing plate 611 is loosened after the adjustment is finished, the moving plate 67 is not pressed by external force any more, the moving plate 67 drives the clamping block 68 to move to the inside the fixed hole 5 under the elastic potential energy of the second spring 610, and the lying plate 3 is further fixed.

It is noted that relational terms such as first and second, and the like are 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. Moreover, 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 utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. Sofa with adjustable backrest, comprising a seat cushion (1), characterized in that: the utility model discloses a seat cushion, including seat cushion (1), adjusting part, rotary rod (61) and round plate (62) are connected with seat cushion (1), seat cushion (1) both sides all are connected with curb plate (2), seat cushion (1) upper end one side is connected with service creeper (3), service creeper (3) both sides all rotate and are connected with pivot (4), pivot (4) one end runs through and extends to curb plate (2) inside department, pivot (4) are connected with curb plate (2) inner wall rotation, fixed orifices (5) have been seted up to pivot (4) outside one side, pivot (4) outside one side is connected with adjusting part (6), adjusting part (6) are including installing dwang (61) in pivot (4) outside both sides, dwang (61) one end is connected with round plate (62).

2. The sofa of claim 1 wherein the back-rest adjustable sofa comprises: the novel arc-shaped support is characterized in that an arc-shaped rod (63) is connected to the middle of one side of the circular plate (62) in a penetrating manner, support plates (64) are connected to two ends of the arc-shaped rod (63), one end of each support plate (64) is connected to one side of the inner wall of the side plate (2), a first spring (65) is sleeved on one side of the outer portion of the arc-shaped rod (63), one end of each first spring (65) is connected to one side of each support plate (64), and the other end of each first spring (65) is connected to one side of the circular plate (62).

3. The sofa of claim 1 wherein the back-rest adjustable sofa comprises: the fixed seat (66) is sleeved outside the rotating shaft (4), one end of the fixed seat (66) is fixedly connected with the side plate (2), one side inside the fixed seat (66) is connected with the moving plate (67), one end of the moving plate (67) is connected with the clamping block (68), and one end of the clamping block (68) extends to the inner part of the fixing hole (5).

4. A sofa with an adjustable backrest according to claim 3, characterized in that: the telescopic device is characterized in that two sides of one end of the moving plate (67) are connected with telescopic rods (69), second springs (610) are sleeved outside the telescopic rods (69), one ends of the second springs (610) are connected with one side of the inner wall of the fixed seat (66), and the other ends of the second springs (610) are connected with one side of the moving plate (67).

5. The adjustable back sofa of claim 4, wherein: the fixed seat (66) one side through-connection has clamp plate (611), clamp plate (611) one end is connected with pushing plate (612), pushing plate (612) one end and movable plate (67) one side contact, clamp plate (611) both sides all are connected with stopper (613), stopper (613) one side middle part through-connection has gag lever post (614), gag lever post (614) both ends all are connected with fixed seat (66) inner wall.