Adjustable chair headrest

Abstract

The utility model discloses an adjustable chair headrest which comprises a frame and a shell, an elastic net is arranged between the frame and the shell, an adjusting piece is arranged at the bottom of the frame, and a mounting assembly is arranged on the surface of the adjusting piece. According to the adjustable chair headrest, through mutual assembly of the mounting assembly and the adjusting parts, free extension and retraction of the length are achieved, the function of automatic adjustment can be achieved according to the head of a worker, the bottom of the frame is rotationally connected with the mounting head through the rotating cover, in this way, the frame can be turned over on the sliding rod, and the headrest can be automatically selected to be used or not used.

Description

Technical Field

[0001] This utility model relates to the field of headrest technology, specifically an adjustable chair headrest. Background Technology

[0002] A "chair headrest" generally refers to a component on a chair (especially an office chair, car seat, or lounge chair) used to support the head; it is also called a "headrest" or "pillow." Its main function is to provide support for the head and neck, helping users maintain a comfortable posture and reducing fatigue caused by prolonged sitting.

[0003] Currently, headrests are installed directly on chairs, so their length is fixed. However, due to the different heights of people, they cannot be adjusted according to the position of the user's head during use, and there is no option to choose whether to use the headrest or not. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an adjustable chair headrest, which solves the problem that current headrests are directly installed on chairs, so their length is fixed. However, due to different heights, they cannot be adjusted according to the user's head position during use, and there is no option to choose whether the headrest is in use or not.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an adjustable chair headrest, comprising a frame and a shell, wherein an elastic mesh is provided between the frame and the shell, and an adjustment component is provided at the bottom of the frame, and an installation component is provided on the surface of the adjustment component;

[0006] The mounting assembly includes a mounting shell, and a bottom cover is mounted on the bottom of the mounting shell by screws. Sliding blocks are fixedly connected to both sides of the inner cavity of the mounting shell, and a mounting hole is opened in the middle of the inner cavity of the mounting shell. A steel ball is arranged in the inner cavity of the mounting hole by a spring.

[0007] The adjusting component includes a sliding rod, the surface of which is symmetrically provided with multiple slots, and the lower surface of the sliding rod is symmetrically fixedly connected with limit blocks, and the two sides of the sliding rod are provided with sliding grooves, and the top of the sliding rod is integrally extended with a mounting head.

[0008] Preferably, the bottom of the frame is rotatably connected to the mounting head via a rotating cover.

[0009] Preferably, the sliding block is slidably sleeved in the inner cavity of the slot, and the surfaces of the mounting shell and the sliding rod are in contact with each other.

[0010] Preferably, the bottom cover and the limiting block abut against each other.

[0011] Preferably, the steel ball and the slot are engaged with each other.

[0012] Preferably, the frame and the outer shell are fixed together by screws.

[0013] This invention provides an adjustable chair headrest. Compared with the prior art, it has the following advantages:

[0014] 1. This adjustable chair headrest uses a telescopic sliding rod, under the force of a spring, to cause steel balls to be squeezed and engaged with multiple slots. This limits and fixes the sliding rod, thereby achieving height adjustment. This allows for automatic adjustment based on the user's head size.

[0015] 2. The adjustable chair headrest is connected to the mounting head by a rotating cover at the bottom of the frame, allowing the frame to be flipped on the sliding rod, automatically selecting whether the headrest is in use or not.

[0016] 3. This adjustable chair headrest features a sliding rod that can be easily removed from the mounting housing by disassembling the bottom cover. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a partial disassembly diagram of the structure of this utility model;

[0019] Figure 3 This is a partial disassembly diagram of the structure of this utility model.

[0020] Figure 4 This is a schematic diagram of the structural installation components of this utility model;

[0021] Figure 5 This is a schematic diagram of the structural adjustment component of this utility model.

[0022] In the diagram: 1. Frame; 2. Outer shell; 3. Elastic mesh; 4. Rotating cover; 5. Mounting assembly; 51. Mounting shell; 52. Sliding block; 53. Mounting hole; 54. Bottom cover; 55. Spring; 56. Steel ball; 6. Adjusting component; 61. Sliding rod; 62. Mounting head; 63. Slot; 64. Limiting block; 65. Slide. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-3 This utility model provides a technical solution: an adjustable chair headrest, including a frame 1 and a shell 2, with an elastic net 3 provided between the frame 1 and the shell 2. The frame 1 and the shell 2 are fixedly installed by screws. The elastic net 3 is first installed on the frame 1. The surface of the frame 1 is provided with screw mounting posts, and the periphery of the elastic net 3 is provided with mounting holes. Therefore, the elastic net 3 is stretched and laid on the frame 1 by fitting it onto the screw mounting posts through the mounting holes. Then, the shell 2 is aligned with the frame 1, and the screws are passed through the shell 2 and tightened onto the screw mounting posts to complete the installation of the elastic net 3. The bottom of the frame 1 is provided with an adjustment component 6, and the surface of the adjustment component 6 is provided with an installation component 5.

[0025] Please see Figure 4 The mounting assembly 5 includes a mounting shell 51, and a bottom cover 54 is screwed to the bottom of the mounting shell 51. Sliding blocks 52 are fixedly connected to both sides of the inner cavity of the mounting shell 51, and a mounting hole 53 is opened in the middle of the inner cavity of the mounting shell 51. A steel ball 56 is set in the inner cavity of the mounting hole 53 through a spring 55. The sliding block 52 is slidably sleeved in the inner cavity of the slot 63, and the surfaces of the mounting shell 51 and the sliding rod 61 are in contact with each other. The bottom cover 54 and the limiting block 64 abut against each other, and the steel ball 56 is locked in place with the slot 63. Next, slide the sliding block 52 along the bottom of the sliding rod 61 into the slide groove 65. The mounting shell 51 is U-shaped, so the hollow in the middle can avoid contact with the limiting block 64. Then, the spring force of the spring 55 makes the steel ball 56 enter the slot 63 for locking. Finally, install the bottom cover 54, which blocks the cavity at the bottom of the mounting shell 51 and makes it abut against the limiting block 64, so that the mounting shell 51 will not fall off. Finally, install the mounting shell 51 on the back of the chair with screws.

[0026] Please see Figure 5 The adjusting component 6 includes a sliding rod 61. Multiple slots 63 are symmetrically formed on the surface of the sliding rod 61, and limit blocks 64 are symmetrically fixedly connected to the lower surface of the sliding rod 61. Slide grooves 65 are formed on both sides of the sliding rod 61. An integral mounting head 62 extends from the top of the sliding rod 61. The limit blocks 64 are used to abut against the bottom cover 54, so that the sliding rod 61 will not fall off when sliding in the mounting shell 51. The slots 63 are used for the steel ball 56 to adjust the extension and retraction, and the slide grooves 65 are used to limit the sliding of the sliding block 52 to ensure stability.

[0027] The bottom of the frame 1 is rotatably connected to the mounting head 62 via the rotating cover 4, so that the frame 1 can be flipped on the sliding rod 61. When not in use, the frame 1, the outer shell 2 and the elastic net 3 can be rotated to make the headrest located at the back of the chair. When in use, the headrest is positioned above the chair so that the head can rest on the elastic net 3.

[0028] During operation or use, first install the mounting shell 51 onto the back of the chair with screws. Then, insert the sliding grooves 65 on both sides of the sliding rod 61 into the sliding block 52 for limited sliding. Next, install the bottom cover 54 on the bottom of the mounting shell 51. This prevents the bottom cover 54 from falling off the blocking and limiting block 64. Then, extend and retract the sliding rod 61, causing the steel ball 56 to be squeezed and engaged with multiple slots 63 under the elastic force of the spring 55. This can limit and fix the sliding rod 61, thereby realizing the height adjustment of the sliding rod 61. This can be adjusted according to the operator's head. Then, flip the frame 1, the outer shell 2, and the elastic net 3 onto the top of the chair by rotating the cover 4. Finally, rest the head on the elastic net 3.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0030] Although embodiments of the present invention 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 to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable chair headrest, comprising a frame (1) and a shell (2), characterized in that: An elastic mesh (3) is provided between the frame (1) and the outer shell (2), and an adjustment component (6) is provided at the bottom of the frame (1), and an installation component (5) is provided on the surface of the adjustment component (6). The mounting assembly (5) includes a mounting shell (51), and a bottom cover (54) is mounted on the bottom of the mounting shell (51) by screws. Sliding blocks (52) are fixedly connected to both sides of the inner cavity of the mounting shell (51), and a mounting hole (53) is opened in the middle of the inner cavity of the mounting shell (51). A steel ball (56) is provided in the inner cavity of the mounting hole (53) by a spring (55). The adjusting component (6) includes a sliding rod (61), the surface of which is symmetrically provided with multiple slots (63), and the lower surface of the sliding rod (61) is symmetrically fixedly connected with a limiting block (64), and the two sides of the sliding rod (61) are provided with sliding grooves (65), and the top of the sliding rod (61) is integrally extended with a mounting head (62).

2. An adjustable chair headrest according to claim 1, characterized in that: The bottom of the frame (1) is rotatably connected to the mounting head (62) via a rotating cover (4).

3. An adjustable chair headrest according to claim 1, characterized in that: The sliding block (52) is slidably sleeved in the inner cavity of the slot (63), and the surfaces of the mounting shell (51) and the sliding rod (61) are in contact with each other.

4. An adjustable chair headrest according to claim 1, characterized in that: The bottom cover (54) and the limiting block (64) abut against each other.

5. An adjustable chair headrest according to claim 1, characterized in that: The steel ball (56) and the slot (63) are engaged with each other.

6. An adjustable chair headrest according to claim 1, characterized in that: The frame (1) and the outer shell (2) are fixed together by screws.

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