Sofa backrest forward and backward moving structure and sofa

Abstract

The utility model discloses a sofa backrest front-back moving structure and a sofa, and relates to the technical field of sofa backrest adjustment. The device comprises an adjustable mechanism, wherein the adjustable mechanism comprises a push rod, a support plate, a sliding block, a rotating rod, a pull rod and a spring; the multiple sets of push rods are rotationally connected to one side of the supporting plate, the sliding blocks are slidably connected to the outer surfaces of the push rods, the ends of the rotating rods are rotationally connected with the supporting plate, the other ends of the rotating rods are rotationally connected with the sliding blocks, the pull rods are movably inserted into the push rods, and the springs are wound around the outer surfaces of the pull rods. According to the device, the separation of the sponge backrest and the sofa body is realized through the adjustable mechanism, the position and angle adjustment of the sponge backrest can be completed so as to adapt to the requirements of different users and scenes, each member can enjoy comfortable sitting and lying experience in each period, the practical value is relatively high, and the requirements of the users are met.

Description

Technical Field

[0001] The utility model relates to the technical field of sofa backrest adjustment, in particular to a sofa backrest forward and backward moving structure and a sofa. Background Art

[0002] Sofas are a type of furniture, usually placed in living rooms or lounges for sitting, lying and resting. They not only provide a comfortable sitting or lying experience, but also often become an important element in home decoration.

[0003] Existing sofas are not only places for resting, but also for reading, talking, watching movies and other activities. Each of these activities has requirements for the angle and position of the sofa cushions to obtain the best comfort. Existing sofas cannot be adjusted, which makes it impossible for users to make specific adjustments to the sofa according to their own usage habits. Moreover, the sofa cannot meet the needs of all family members, resulting in its actual use effect being less than ideal.

[0004] In the actual use of the sofa, because the sofa and backrest are fixed structures and cannot be adjusted, it will make it inconvenient and uncomfortable when performing certain activities, and it is easy to feel uncomfortable and tired when sitting for a long time. The body shapes of family members will change over time, and the fixed sofa and backrest cannot adapt to these changes, resulting in poor use effect. Therefore, we propose a new sofa backrest movable structure and sofa to solve the above problems. Utility Model Content

[0005] In response to the deficiencies in the prior art, the utility model provides a sofa backrest structure and a sofa with a forward and backward movable structure, which solves the problem that in actual use of the sofa, the sofa and the backrest are fixed structures and cannot be adjusted, which makes it inconvenient and uncomfortable when performing certain actions, and it is easy to feel uncomfortable and tired when sitting for a long time. The body shapes of family members will change over time, and the fixed sofa and backrest cannot adapt to these changes, resulting in poor use effect.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A sofa backrest moving forward and backward structure, including an adjustable mechanism, the adjustable mechanism including a push rod, a support plate, a slider, a rotating rod, a pull rod and a spring;

[0007] Multiple groups of push rods are rotatably connected to one side of the support plate, the slider is slidably connected to the outer surface of the push rod, the end of the rotating rod is rotatably connected to the support plate, the end of the other end of the rotating rod is rotatably connected to the slider, the pull rod is movably inserted into the inside of the push rod, and the spring is wound on the outer surface of the pull rod.

[0008] Preferably, a fixing block is fixedly mounted on one side of the support plate, and the rotating rod is rotatably connected to the inside of the fixing block.

[0009] Preferably, a plurality of fixing holes are provided at the end of the push rod, and the pull rod is movably inserted into the fixing holes.

[0010] Preferably, the end of the push rod is fixedly connected to a top plate, the end of the top plate is fixedly connected to a push plate, and the end of the top plate is rotatably connected to multiple groups of brackets.

[0011] Preferably, a push-pull cylinder is provided on one side of the adjustable mechanism, and the output shaft of the push-pull cylinder is fixedly connected to the push plate.

[0012] Preferably, a fixing plate is fixedly installed inside one side of the slider, an end of the spring is fixedly connected to the fixing plate, and the other end of the spring is fixedly connected to the pull rod.

[0013] Preferably, it comprises a sofa body, a sponge backrest is provided on one side of the sofa body, and the adjustable mechanism is provided between the sofa body and the sponge backrest.

[0014] The utility model discloses a sofa backrest moving forward and backward structure and a sofa, which has the following beneficial effects: the device realizes the separation of the sponge backrest and the sofa body through an adjustable mechanism, can complete the position and angle adjustment of the sponge backrest itself to meet the needs of different users and scenes, and ensures that each member can enjoy a comfortable sitting and lying experience at every time. It has high practical value and meets the needs of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is an enlarged schematic diagram of the adjustable mechanism of the utility model;

[0018] Figure 3 This is a cross-sectional view of the interior of the slider of the utility model;

[0019] Figure 4 This is an exploded view of the structure of the utility model;

[0020] Figure 5 This is a schematic diagram of the actual use of the structure of the utility model.

[0021] In the figure: 1. Adjustable mechanism; 101. Push rod; 102. Support plate; 103. Slider; 104. Rotating rod; 105. Pull rod; 106. Spring; 107. Fixing block; 108. Fixing hole; 109. Top plate; 110. Bracket; 111. Push plate; 112. Fixing piece; 2. Sofa body; 3. Push-pull cylinder; 4. Sponge backrest. DETAILED DESCRIPTION

[0022] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0023] The embodiments of the present application provide a sofa backrest structure and a sofa that can be moved forward and backward, thereby solving the problem that, during actual use of the sofa, the sofa and the backrest are fixed structures and cannot be adjusted, which makes certain actions inconvenient and uncomfortable, and easily causes discomfort and fatigue when sitting for a long time. The body shapes of family members change over time, and the fixed sofa and backrest cannot adapt to these changes, resulting in poor use effect.

[0024] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0025] The embodiment of the utility model discloses a sofa backrest moving forward and backward structure and a sofa.

[0026] According to the attached Figure 1-5 As shown, it includes an adjustable mechanism 1, which includes a push rod 101, a support plate 102, a slider 103, a rotating rod 104, a pull rod 105 and a spring 106;

[0027] When the device needs to adjust the position of the sponge backrest, the push-pull cylinder 3 is started, and the push rod 101 at the end of the push-pull cylinder 3 pushes the sponge backrest 4 to move, and the bracket 110 at the end of the push rod 101 shrinks and is adjusted to a suitable position. The push-pull cylinder 3 is stopped, and the pull rod 105 is grabbed and stretched outward. The spring 106 inside the pull rod 105 is tightened, driving the slider 103 to slide on the outer surface of the push rod 101 and adjusted to a suitable angle. After loosening the pull rod 105, the pull rod 105 is pushed into the inside of the fixing hole 108 under the reaction force of the spring 106 to complete the adjustment of the angle of the sponge backrest 4.

[0028] Multiple groups of push rods 101 are rotatably connected to one side of the support plate 102, the slider 103 is slidably connected to the outer surface of the push rod 101, the end of the rotating rod 104 is rotatably connected to the support plate 102, and the other end of the rotating rod 104 is rotatably connected to the slider 103, the pull rod 105 is movably inserted into the inside of the push rod 101, and the spring 106 is wound on the outer surface of the pull rod 105.

[0029] A fixing block 107 is fixedly installed on one side of the support plate 102, and the rotating rod 104 is rotatably connected to the inside of the fixing block 107. A plurality of fixing holes 108 are provided at the end of the push rod 101, and the pull rod 105 is movably inserted into the inside of the fixing hole 108. A groove is provided inside the support plate 102, and the push rod 101 is rotatably connected in the groove, so that the normal use of the push rod 101 will not be affected when the angle of the sponge backrest 4 is adjusted.

[0030] The end of the push rod 101 is fixedly connected to a top plate 109, and the end of the top plate 109 is fixedly connected to a push plate 111. The end of the top plate 109 is rotatably connected to multiple groups of brackets 110. A push-pull cylinder 3 is provided on one side of the adjustable mechanism 1, and the output shaft of the push-pull cylinder 3 is fixedly connected to the push plate 111. The adjustable mechanism 1 can be auxiliary supported by the bracket 110, thereby ensuring the stability of the connection between the adjustable mechanism 1 and the push-pull cylinder 3, and the push plate 111 ensures the synchronous movement of the two groups of adjustable mechanisms 1, so that only one push-pull cylinder 3 is needed to synchronously adjust the position of the sponge backrest 4, and there will be no embarrassing situation that the push-pull cylinder 3 pushes one side of the sponge backrest 4 and the other side remains in place, thereby meeting the needs of users.

[0031] A fixing plate 112 is fixedly installed inside one side of the slider 103, and the end of the spring 106 is fixedly connected to the fixing plate 112. The other end of the spring 106 is fixedly connected to the pull rod 105. The spring 106 is fixed to the fixing plate 112 and the pull rod 105 respectively. On the one hand, it ensures that the pull rod 105 can be stably inserted into the inside of the push rod 101 to complete the fixation of the sofa backrest 4 angles. On the other hand, it ensures that the pull rod 105 will not slide out of the slider 103 and affect the subsequent angle adjustment.

[0032] The sofa comprises a sofa body 2 , a sponge backrest 4 is provided on one side of the sofa body 2 , and an adjustable mechanism 1 is provided between the sofa body 2 and the sponge backrest 4 .

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A sofa backrest moving forward and backward structure, comprising an adjustable mechanism (1), characterized in that: The adjustable mechanism (1) comprises a push rod (101), a support plate (102), a slider (103), a rotating rod (104), a pull rod (105) and a spring (106); Multiple groups of push rods (101) are rotatably connected to one side of the support plate (102), the slider (103) is slidably connected to the outer surface of the push rod (101), the end of the rotating rod (104) is rotatably connected to the support plate (102), the end of the other end of the rotating rod (104) is rotatably connected to the slider (103), the pull rod (105) is movably inserted into the interior of the push rod (101), and the spring (106) is wound on the outer surface of the pull rod (105).

2. The sofa backrest moving structure according to claim 1, characterized in that: A fixed block (107) is fixedly mounted on one side of the support plate (102), and the rotating rod (104) is rotatably connected to the interior of the fixed block (107).

3. The sofa backrest moving structure according to claim 1, characterized in that: The end of the push rod (101) is provided with a plurality of fixing holes (108), and the pull rod (105) is movably inserted into the fixing holes (108).

4. The sofa backrest moving structure according to claim 1, characterized in that: The end of the push rod (101) is fixedly connected to a top plate (109), the end of the top plate (109) is fixedly connected to a push plate (111), and the end of the top plate (109) is rotatably connected to multiple groups of brackets (110).

5. The sofa backrest moving structure according to claim 1, characterized in that: A push-pull cylinder (3) is provided on one side of the adjustable mechanism (1), and an output shaft of the push-pull cylinder (3) is fixedly connected to the push plate (111).

6. The sofa backrest moving structure according to claim 1, characterized in that: A fixing plate (112) is fixedly installed inside one side of the slider (103), an end of the spring (106) is fixedly connected to the fixing plate (112), and the other end of the spring (106) is fixedly connected to the pull rod (105).

7. A sofa comprising a sofa backrest movable structure according to any one of claims 1 to 6, characterized in that: The sofa comprises a sofa body (2), a sponge backrest (4) is provided on one side of the sofa body (2), and the adjustable mechanism (1) is provided between the sofa body (2) and the sponge backrest (4).

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