Mesh chair flexible rotation adjustment armrest

Abstract

The utility model discloses a net chair flexible rotation adjustment handrail, including mounting panel, damping pivot and positioning mechanism, mounting panel: its installation ring's upper end is provided with the carousel, the upper end fixedly connected with the inner tube of carousel, the outer arc surface slidingly connected with the outer tube of inner tube, the upper end of outer tube is provided with the handrail board, and the outer arc surface of inner tube is equipped with the sawtooth strip, damping pivot: its fixedly connected in the inside of mounting panel installation ring and the upper end inside of inner tube respectively, the movable frame fixedly connected in the inside of carousel of the damping pivot far from mounting panel one end of mounting panel installation ring, the movable frame fixedly connected in the inside of handrail board of the damping pivot far from inner tube one end of inner tube, positioning mechanism: it includes sawtooth block and positioning seat, and the positioning seat sets up in the lower end of outer tube, and the inside slidingly connected with sawtooth block of positioning seat, this net chair flexible rotation adjustment handrail has multidimensional adjustment, and the higher flexibility is more comfortable.

Description

Technical Field

[0001] This utility model relates to the field of armrest technology for mesh chairs, specifically to flexible rotating and adjustable armrests for mesh chairs. Background Technology

[0002] Mesh chairs, with their signature breathable mesh backrest and seat, are an ideal choice for modern office and home environments. Their greatest advantage lies in their superior breathability. The countless tiny pores woven into the mesh fabric act as natural air channels, effectively dissipating heat and moisture from the area where the body contacts the seat. Even during long periods of sitting, they significantly reduce stuffiness and sweating, providing a cool and comfortable experience. With its breathable heat dissipation, elastic support, comfortable fit, and back support, mesh chairs have become the preferred choice for users seeking efficient, healthy, and comfortable seating.

[0003] The armrests on both sides of the mesh chair are usually made of rubber and are directly clipped onto the chair frame. Some have height adjustment or flat rotation functions to meet user needs. However, due to different personal habits, armrests that can only be adjusted flatly can no longer meet the needs of most users. Therefore, we propose that the mesh chair has flexible rotating and adjustable armrests. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a flexible rotating and adjustable armrest for a mesh chair, which has multi-dimensional adjustment, higher flexibility and greater comfort, and can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a flexible rotating and adjustable armrest for a mesh chair, including a mounting plate, a damping pivot, and a positioning mechanism; Mounting plate: The upper end of the mounting ring is provided with a turntable, the upper end of the turntable is fixedly connected to an inner cylinder, the outer arc surface of the inner cylinder is slidably connected to an outer cylinder, the upper end of the outer cylinder is provided with a handrail, and the outer arc surface of the inner cylinder is provided with a serrated strip. Damping shafts: They are respectively fixedly connected to the inside of the mounting ring of the mounting plate and the inside of the upper end of the inner cylinder. The movable frame of the damping shaft located on the mounting ring of the mounting plate away from the mounting plate is fixedly connected to the inside of the turntable, and the movable frame of the damping shaft located on the inner cylinder away from the inner cylinder is fixedly connected to the inside of the handrail plate. Positioning mechanism: It includes a sawtooth block and a positioning seat. The positioning seat is located at the lower end of the outer cylinder. The sawtooth block is slidably connected inside the positioning seat. The sawtooth surface of the sawtooth block works in conjunction with the sawtooth strip, which has multi-dimensional adjustment, higher flexibility and greater comfort.

[0006] Furthermore, the positioning mechanism also includes spring plates and slots. The positioning seat has symmetrically distributed slots inside. Spring plates are inserted between the slots at both ends of the positioning seat and the adjacent slots on the rear side to realize that the saw teeth block automatically disengages from the saw teeth.

[0007] Furthermore, the positioning mechanism also includes a knob, which is threaded to the middle of the positioning seat. The stud of the knob contacts the middle of the rear side of the sawtooth block, pressing the sawtooth block tightly.

[0008] Furthermore, it also includes a cover plate, on the inner walls of both the left and right sides of the cover plate, and positioning grooves are provided on both the left and right sides of the positioning seat. The locking strips are respectively inserted into the interior of the positioning grooves, and the lower surface of the sawtooth block is slidably connected to the bottom wall of the cover plate to prevent the sawtooth block from falling off.

[0009] Furthermore, the lower surface of the cover plate is provided with a pull plate to facilitate the removal of the cover plate.

[0010] Furthermore, the outer arc surface of the inner cylinder is provided with evenly distributed positioning grooves, and the inner arc surface of the outer cylinder is provided with evenly distributed protrusions. The protrusions are slidably connected to the interior of adjacent positioning grooves to prevent the outer cylinder from rotating.

[0011] Furthermore, the upper surface edge of the mounting ring of the mounting plate and the right side of the upper end of the inner cylinder are provided with evenly distributed grooves. The lower surface edge of the turntable and the left side of the lower end of the handrail are fixedly connected with ball plungers. The ball plungers are used in conjunction with the adjacent grooves to improve the feel.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the flexible rotating and adjustable armrests of this mesh chair have the following advantages: The armrest can be adjusted in both plane and angle with the outer cylinder via a damping pivot. The outer cylinder is raised and lowered by a convex bar. The height of the outer cylinder can be locked by the engagement of a serrated block and a serrated strip. After releasing the knob, the serrated block automatically disengages from the serrated strip via a spring plate. Height adjustment is more convenient and stable, and the three-dimensional adjustment is more flexible, better meeting the diverse needs of users. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the exploded structure of this utility model; Figure 3 This is a cross-sectional structural schematic diagram of the positioning mechanism of this utility model; Figure 4 This is a schematic diagram of the inner cylinder of this utility model; Figure 5 This is a schematic diagram of the sawtooth block and spring sheet of this utility model; Figure 6 This is a schematic diagram of the structure of the cover plate of this utility model.

[0014] In the diagram: 1 Mounting plate, 2 Turntable, 3 Inner cylinder, 4 Outer cylinder, 5 Handrail plate, 6 Positioning mechanism, 61 Serrated block, 62 Positioning seat, 63 Spring plate, 64 Slot, 65 Knob, 7 Serrated strip, 8 Cover plate, 9 Locking strip, 10 Pull plate, 11 Positioning groove, 12 Protrusion, 13 Damping shaft, 14 Groove, 15 Ball plunger. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1-6 This embodiment provides a technical solution: a flexible rotating and adjustable armrest for a mesh chair, including a mounting plate 1, a damping pivot 13, and a positioning mechanism 6; Mounting plate 1: A turntable 2 is provided at the upper end of its mounting ring. An inner cylinder 3 is fixedly connected to the upper end of the turntable 2. An outer cylinder 4 is slidably connected to the outer arc surface of the inner cylinder 3. A handrail 5 is provided at the upper end of the outer cylinder 4. A serrated strip 7 is provided on the outer arc surface of the inner cylinder 3. By turning the handrail 5 in the planar direction, the whole assembly consisting of the inner cylinder 3, the outer cylinder 4 and the turntable 2 is driven to rotate around the mounting ring of the mounting plate 1, thereby realizing the rotation of the handrail 5 in the planar direction. By turning the end of the handrail 5 away from the inner cylinder 3, the handrail 5 rotates with the central axis of the damping shaft 13 at the upper end as the center, thereby realizing the angle adjustment of the direction of the handrail 5 perpendicular to the ground. The outer arc surface of the inner cylinder 3 is provided with evenly distributed positioning grooves 11, and the inner arc surface of the outer cylinder 4 is provided with evenly distributed protrusions 12. The protrusions 12 are slidably connected to the interior of adjacent positioning grooves 11. The outer cylinder 4 slides and rises on the outer arc surface of the inner cylinder 3, and the protrusions 12 slide in the interior of adjacent grooves 14 to limit the outer cylinder 4 and prevent the outer cylinder 4 from rotating. The upper surface edge of the mounting ring of the mounting plate 1 and the right side of the upper end of the inner cylinder 3 are provided with evenly distributed grooves 14. The lower surface edge of the turntable 2 and the left side of the lower end of the handrail 5 are fixedly connected with ball plungers 15. The ball plungers 15 are used in conjunction with the adjacent grooves 14. When the turntable 2 and the handrail 5 rotate, the ball plungers 15 rotate synchronously. The steel balls of the ball plungers 15 bounce between the grooves 14, making a crisp sound. At the same time, when the steel balls leave the grooves 14, a greater torque needs to be applied to increase the feel. Damping shaft 13: It is fixedly connected to the inside of the mounting ring of the mounting plate 1 and the upper end of the inner cylinder 3 respectively. The movable frame of the damping shaft 13 located in the mounting ring of the mounting plate 1 away from the mounting plate 1 is fixedly connected to the inside of the turntable 2. The movable frame of the damping shaft 13 located in the inner cylinder 3 away from the inner cylinder 3 is fixedly connected to the inside of the handrail 5. When the turntable 2 and the handrail 5 rotate, the damping shaft 13 at the corresponding position controls the movement speed through the internal damping mechanism, so that the handrail 5 can be suspended in different positions. It requires force to adjust the angle of the handrail 5, thus preventing the handrail 5 from rotating randomly and "heading down". Positioning mechanism 6 includes a serrated block 61 and a positioning seat 62. The positioning seat 62 is located at the lower end of the outer cylinder 4. The serrated block 61 is slidably connected inside the positioning seat 62. The serrated surface of the serrated block 61 cooperates with the serrated strip 7. The positioning mechanism 6 also includes a spring plate 63 and a slot 64. The positioning seat 62 has symmetrically distributed slots 64 inside. Spring plates 63 are inserted between the slots at both ends of the positioning seat 62 and the adjacent slots 64 on the rear side. The positioning mechanism 6 also includes a knob 65, which is threaded to the middle of the positioning seat 62. When the stud contacts the middle of the rear side of the sawtooth block 61, and the height of the handrail 5 needs to be adjusted, the knob 65 is loosened. The knob 65 no longer presses the sawtooth block 61, the spring plate 63 retracts and resets, and drives the sawtooth block 61 to slide backward inside the positioning seat 62. The sawtooth block 61 leaves the sawtooth strip 7, and then the handrail 5 can be pulled up. When the height of the handrail 5 is appropriate, the knob 65 is tightened. The stud of the knob 65 pushes the sawtooth block 61 against the sawtooth strip 7. The sawtooth block 61 and the sawtooth strip 7 mesh and lock. The sawtooth meshing method provides a greater biting force and prevents the outer cylinder 4 from sliding down. The system includes a cover plate 8, with retaining strips 9 on the inner walls of both the left and right sides. The positioning seat 62 has positioning grooves on both the left and right sides, with the retaining strips 9 inserted into the positioning grooves. The lower surface of the serrated block 61 is slidably connected to the bottom wall of the cover plate 8. The lower surface of the cover plate 8 is provided with a pull plate 10. When the user feels that the outer cylinder 4 is stuck when rising and the serrated block 61 cannot completely disengage from the serrated strip 7, the user can pull out the cover plate 8 through the pull plate 10, remove the serrated block 61, pull out the spring sheet 63, replace the spring sheet 63, and then reinstall the serrated block 61 and insert it into the cover plate 8. The retaining strips 9 are inserted into the positioning grooves to prevent the cover plate 8 from disengaging.

[0017] The working principle of the flexible rotating and adjustable armrests of the mesh chair provided by this utility model is as follows: The adjustable armrests are installed on the left and right sides of the lower surface of the mesh chair through the mounting plate 1; By rotating the handrail 5 in the plane direction, the entire assembly consisting of the inner cylinder 3, outer cylinder 4, and turntable 2 rotates around the mounting ring of the mounting plate 1, thereby achieving the rotation of the handrail 5 in the plane direction. By rotating the end of the handrail 5 away from the inner cylinder 3, the handrail 5 rotates around the central axis of the damping shaft 13 at the upper end, thereby achieving the angle adjustment of the direction of the plane perpendicular to the ground of the handrail 5. When the turntable 2 and the handrail 5 rotate, the damping shaft 13 at the corresponding position controls the movement speed through the internal damping mechanism, so that the handrail 5 can be suspended at different positions. Force is required to adjust the angle of the handrail 5, preventing the handrail 5 from rotating randomly and "heading down". When turntable 2 and armrest plate 5 rotate, ball plunger 15 rotates synchronously. The steel ball of ball plunger 15 bounces between grooves 14, making a crisp sound. At the same time, when the steel ball leaves the groove 14, a greater torque needs to be applied to increase the feel. When the height of the armrest 5 needs to be adjusted, release the knob 65. The knob 65 will no longer press the sawtooth block 61, and the spring plate 63 will retract and reset, causing the sawtooth block 61 to slide backward inside the positioning seat 62. The sawtooth block 61 will leave the sawtooth strip 7. Since the distance required for the sawtooth block 61 to leave the sawtooth strip 7 is small, the deformation of the spring plate 63 is small and will not interfere with the stud of the knob 65. Then the armrest 5 can be pulled up. The outer cylinder 4 slides and rises on the outer arc surface of the inner cylinder 3, and the protrusions 12 slide inside the adjacent grooves 14 respectively to limit the outer cylinder 4 and prevent the outer cylinder 4 from rotating. Once the handrail 5 is at the appropriate height, tighten the knob 65. The stud of the knob 65 will push the serrated block 61 against the serrated strip 7. The serrated block 61 and the serrated strip 7 will mesh and lock together. The serrated meshing method provides a stronger biting force and prevents the outer cylinder 4 from sliding down. When the user feels that the outer cylinder 4 is stuck when rising and the serrated block 61 cannot completely disengage from the serrated strip 7, the cover plate 8 is pulled out by the pull plate 10, the serrated block 61 is removed, the spring plate 63 is pulled out and replaced with a new spring plate 63, then the serrated block 61 is reinstalled and the cover plate 8 is inserted. The retaining strips 9 are respectively inserted into the positioning groove to prevent the cover plate 8 from disengaging.

[0018] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A mesh chair with flexibly rotating and adjustable armrests, characterized in that: It includes a mounting plate (1), a damping shaft (13), and a positioning mechanism (6); Mounting plate (1): The upper end of its mounting ring is provided with a turntable (2), the upper end of the turntable (2) is fixedly connected to an inner cylinder (3), the outer arc surface of the inner cylinder (3) is slidably connected to an outer cylinder (4), the upper end of the outer cylinder (4) is provided with a handrail (5), and the outer arc surface of the inner cylinder (3) is provided with a serrated strip (7). Damping shaft (13): It is fixedly connected to the inside of the mounting ring of the mounting plate (1) and the upper end of the inner cylinder (3). The movable frame of the damping shaft (13) located on the mounting ring of the mounting plate (1) away from the mounting plate (1) is fixedly connected to the inside of the turntable (2). The movable frame of the damping shaft (13) located on the inner cylinder (3) away from the inner cylinder (3) is fixedly connected to the inside of the handrail plate (5). Positioning mechanism (6): It includes a sawtooth block (61) and a positioning seat (62). The positioning seat (62) is located at the lower end of the outer cylinder (4). The sawtooth block (61) is slidably connected inside the positioning seat (62). The sawtooth surface of the sawtooth block (61) is used in conjunction with the sawtooth strip (7).

2. The flexible rotating and adjustable armrests of the mesh chair according to claim 1, characterized in that: The positioning mechanism (6) also includes a spring plate (63) and a slot (64). The positioning seat (62) is provided with slots (64) symmetrically distributed on the left and right sides. Spring plates (63) are inserted between the slots at both ends of the positioning seat (62) and the adjacent slots (64) on the rear side.

3. The flexible rotating and adjustable armrests of the mesh chair according to claim 1, characterized in that: The positioning mechanism (6) also includes a knob (65), which is threaded to the middle of the positioning seat (62), and the stud of the knob (65) contacts the middle of the rear side of the sawtooth block (61).

4. The flexible rotating and adjustable armrests of the mesh chair according to claim 1, characterized in that: It also includes a cover plate (8), on the inner walls of the left and right sides of the cover plate (8) are provided with clips (9), and the positioning seat (62) is provided with positioning grooves on the left and right sides. The clips (9) are inserted into the inside of the positioning grooves respectively, and the lower surface of the serrated block (61) is slidably connected to the bottom wall of the cover plate (8).

5. The flexible rotating and adjustable armrests of the mesh chair according to claim 4, characterized in that: The lower surface of the cover plate (8) is provided with a pull plate (10).

6. The flexible rotating and adjustable armrests of the mesh chair according to claim 1, characterized in that: The outer arc surface of the inner cylinder (3) is provided with uniformly distributed positioning grooves (11), and the inner arc surface of the outer cylinder (4) is provided with uniformly distributed protrusions (12), which are slidably connected to the interior of adjacent positioning grooves (11).

7. The flexible rotating and adjustable armrests of the mesh chair according to claim 1, characterized in that: The mounting plate (1) has evenly distributed grooves (14) on the upper edge of the mounting ring and the right side of the upper end of the inner cylinder (3). The lower edge of the turntable (2) and the left side of the lower end of the handrail plate (5) are fixedly connected with ball plungers (15). The ball plungers (15) are used in conjunction with the adjacent grooves (14).

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