Sofa headrest support frame

Abstract

The utility model discloses a sofa headrest support frame which comprises a fixed seat, a swing arm is arranged in an inner cavity of the fixed seat through a rotating shaft, and a corner connector is arranged at one end of the swing arm. According to the sofa headrest supporting frame, the swing arm drives the rotating shaft to rotate in the inner cavity of the fixed seat, the blocking piece can abut against the protruding part in the middle of the check block after rotating along with the inner cavity of the fixed seat, so that limiting is conducted, the rotating stress point of the swing arm can be canceled through the arranged rotating shaft, and therefore the force is exerted on the rotating shaft, and the gravity is set in the middle; and therefore, the stress is better, and the looseness caused by long-time rotation stress of the traditional swinging arm can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of support frames, in particular to a sofa headrest support frame. Background Art

[0002] A sofa headrest support frame is a device used to support a sofa headrest, and it usually includes a bracket, which can be used to support and fix the sofa headrest and achieve a rotation effect.

[0003] After searching the patent number CN209346456U, it is specifically a pillow and back dual-purpose conversion bracket, including a fixed seat, a swing arm and an angle code, one end of the swing arm is rotatably connected to the fixed seat, and a limiting structure is provided between the fixed seat and the swing arm to limit the swing arm between a straight position and an upright position. The swing arm swings upward from the straight position to the upright position relative to the fixed seat, and the angle code is pivotally connected to the other end of the swing arm. The fixed seat of the pillow and back dual-purpose conversion bracket can be fixed on the sofa body, and the swing arm rotatably connected to the fixed seat can switch between two positions, and the angle code pivotally connected to the swing arm is used to fix with the soft cushion. By swinging the swing arm to different positions relative to the fixed seat, the soft cushion can be quickly switched to a higher position for use as a headrest, or switched to a lower position for use as a backrest. The conversion bracket does not need to be provided with a power device and can be manually operated. It has the advantages of simple structure and convenient operation, which is conducive to large-scale promotion and use.

[0004] The above patent number CN209346456U rotates the swing arm during the rotation process by cooperating with the blocking block and the positioning protrusion, thereby applying force, and all the force points are located at the swing arm. Therefore, after long-term rotation and use, the force-bearing part of the swing arm is prone to loosening. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a sofa headrest support frame, which solves the problem that all the force points are located at the swing arm, so that the force-bearing part of the swing arm is prone to loosening after long-term rotation and use.

[0006] To achieve the above purpose, the utility model is implemented through the following technical scheme: a sofa headrest support frame, including a fixed seat, the inner cavity of the fixed seat is provided with a swing arm through a rotating shaft, and an angle code is provided at one end of the swing arm.

[0007] The inner cavity of the fixed seat is symmetrically and integrally extended with a block, and the block is in an arc-shaped cross shape. A wear-resistant pad is provided at one end of the swing arm, and a block piece is integrally extended from the middle of the rotating shaft. The rotating shaft is rotatably sleeved in the inner cavity of the fixed seat, and the block piece abuts against the middle of the block. The inner cavity of the fixed seat is symmetrically provided with a plastic ring, and the two ends of the plastic ring abut against the two sides of the block, and the surface of the rotating shaft is in contact with the plastic ring.

[0008] Preferably, the angle code is rotatably connected to one end of the swing arm via a pin.

[0009] Preferably, the blocking piece and the inner cavity of the fixing seat are matched with each other.

[0010] Preferably, both ends of the rotating shaft are planar and are plugged into one end of the swing arm.

[0011] Preferably, the wear-resistant pad and the port of the fixing seat fit each other.

[0012] The utility model provides a sofa headrest support frame. Compared with the prior art, it has the following beneficial effects:

[0013] 1. The sofa headrest support frame drives the rotating shaft to rotate in the inner cavity of the fixed seat through the swing arm. After the baffle rotates with the inner cavity of the fixed seat, it will abut against the protruding part in the middle of the baffle to limit the position. Then when the headrest is lifted up, it can be rotated in the opposite direction according to the above steps. The point where the swing arm is subjected to force during rotation can be eliminated by setting the rotating shaft. In this way, the weight is on the rotating shaft and the gravity is set in the middle. In this way, the force is better and the loosening caused by the long-term rotation force of the traditional swing arm can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure disassembly of the utility model;

[0016] Figure 3 This is a schematic diagram of the structural shaft of the utility model;

[0017] Figure 4 This is a schematic diagram of the structural fixing seat of the utility model;

[0018] Figure 5 It is a schematic diagram of the swing arm structure of the utility model.

[0019] In the figure: 1, fixed seat; 11, stopper; 2, swing arm; 21, wear-resistant pad; 3, angle code; 4, rotating shaft; 41, stopper; 5, plastic ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-5 The utility model provides a technical solution: a sofa headrest support frame, including a fixed seat 1, the inner cavity of the fixed seat 1 is provided with a swing arm 2 through a rotating shaft 4, and one end of the swing arm 2 is provided with an angle code 3, the angle code 3 is rotatably connected to one end of the swing arm 2 through a pin, and the angle code 3 is fixedly connected to the headrest through screws or pins.

[0022] The inner cavity of the fixed seat 1 is symmetrically extended with a block 11, and the block 11 is an arc-shaped cross. A wear-resistant pad 21 is provided at one end of the swing arm 2. The wear-resistant pad 21 fits against the port of the fixed seat 1. The wear-resistant pad 21 reduces friction and protects the fixed seat 1 and the swing arm 2.

[0023] The two ends of the rotating shaft 4 are flat and plugged into one end of the swing arm 2, making it easy to disassemble and assemble the swing arm 2.

[0024] A baffle 41 is integrally extended from the middle of the rotating shaft 4, and the rotating shaft 4 is rotatably sleeved in the inner cavity of the fixing seat 1, the baffle 41 and the inner cavity of the fixing seat 1 are matched with each other, and the baffle 41 and the middle of the block 11 abut against each other, and the inner cavity of the fixing seat 1 is symmetrically provided with a plastic ring 5, and the two ends of the plastic ring 5 abut against the two sides of the block 11, and the surface of the rotating shaft 4 is in contact with the plastic ring 5, wherein the plastic ring 5 reduces the suspended area of ​​the rotating shaft 4 in contact with the inner cavity of the fixing seat 1, so that the rotation of the rotating shaft 4 is more stable, and it will not affect the abutment of the baffle 41 with the protruding part in the middle of the block 11.

[0025] When in use, connect the angle code 3 to the headrest, and then fix the fixing base 1 on the top of the sofa. When the headrest is swung, directly swing the swing arm 2, so that the swing arm 2 drives the rotating shaft 4 to rotate in the inner cavity of the fixing base 1, and contacts and rotates with the stopper 11 and the plastic ring 5, so that the swing arm 2 is lowered. In addition, by rotating the angle code 3, the headrest is placed on the sofa. At the same time, after the stopper 41 rotates with the inner cavity of the fixing base 1, it will abut against the protruding part in the middle of the stopper 11, thereby limiting the position. Then when the headrest is lifted up, it can be rotated in the opposite direction according to the above steps. The rotating shaft 4 is set to eliminate the point where the swing arm 2 is subjected to force during rotation, so that the weight is on the rotating shaft 4, and the gravity is set in the middle, so that the force is better, and the loosening caused by the long-term rotation force of the traditional swing arm 2 can be avoided.

[0026] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sofa headrest support frame, comprising a fixing seat (1), characterized in that: The inner cavity of the fixing seat (1) is provided with a swing arm (2) via a rotating shaft (4), and an angle code (3) is provided at one end of the swing arm (2); A stopper (11) is symmetrically and integrally extended from the inner cavity of the fixing seat (1), and the stopper (11) is in an arc-shaped cross shape. A wear-resistant pad (21) is provided at one end of the swing arm (2), and a stopper (41) is integrally extended from the middle of the rotating shaft (4). The rotating shaft (4) is rotatably sleeved in the inner cavity of the fixing seat (1), and the stopper (41) and the middle of the stopper (11) are in contact with each other. A plastic ring (5) is symmetrically provided in the inner cavity of the fixing seat (1), and the two ends of the plastic ring (5) are in contact with the two sides of the stopper (11), and the surface of the rotating shaft (4) and the plastic ring (5) are in contact with each other.

2. A sofa headrest support frame according to claim 1, characterized in that: The angle code (3) is rotatably connected to one end of the swing arm (2) via a pin.

3. The sofa headrest support frame according to claim 1, characterized in that: The blocking piece (41) and the inner cavity of the fixing seat (1) are mutually matched.

4. The sofa headrest support frame according to claim 1, characterized in that: Both ends of the rotating shaft (4) are planar and are plugged into one end of the swing arm (2).

5. The sofa headrest support frame according to claim 1, characterized in that: The wear-resistant pad (21) and the port of the fixing seat (1) are in contact with each other.

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