Seat tipping adjusting mechanism

Abstract

The utility model relates to the technical field of seat adjustment, and provides a seat tipping adjusting mechanism which comprises a support and an adjusting mechanism arranged on the side face of the support, the side face of the support is rotationally connected with a threaded rod, the surface of the threaded rod is in threaded connection with a sliding block, the side face of the sliding block is fixedly connected with a sliding column, and the sliding column is fixedly connected with the support. A first gear is attached to the surface of the sliding column, a second gear is meshed with the top of the first gear, a rotating shaft is fixedly connected to the side face of the second gear, and an adjusting rod is fixedly connected to the surface of the rotating shaft. By arranging the adjusting mechanism, a user can control the threaded rod to rotate, and then the headrest is driven to rotate through combined movement of the sliding block, the sliding column, the first gear, the second gear, the rotating shaft and the adjusting rod, so that the purpose of adjusting the inclination angle of the headrest according to own requirements is achieved, the headrest is suitable for different users, and the purpose of maintaining the cervical vertebra of the user is achieved; and the comfort of a user is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of seat adjustment, in particular to a seat tilt adjustment mechanism. Background Art

[0002] A chair is a kind of seating furniture with a backrest and some also have armrests. In ancient times, people sat on the ground and there were no chairs. "Chair" was originally the name of wood. Chairs can be classified according to their materials: aluminum alloy chairs, stainless steel chairs, iron chairs, wooden chairs, and chairs made of other materials.

[0003] After searching, the existing patent (Announcement No.: CN116268842A) discloses a seat reclining adjustment mechanism, including a lower support and an upper support that can be turned over on the lower support, wherein the front two edges of the lower support are respectively provided with a first front support arm and a second front support arm that are parallel to each other and can be turned up and down, the outer ends of the first front support arm and the second front support arm are respectively rotatably connected to the middle of the two sides of the upper support, and the rear two edges of the upper support are provided with a first rear support arm and a second rear support arm that are parallel to each other and can be turned, the outer ends of the first rear support arm and the second rear support arm are respectively slidably connected to the two sides of the lower support, and the lower support is provided with an electric push rod for driving the first front support arm and the second front support arm to turn over. The present invention has the characteristics of not needing to try sitting many times, and is convenient for users to adjust at any time.

[0004] However, in the above solution, only the angle of the entire seat can be adjusted, and the angle of the headrest is fixed. There is no way to adjust it according to the needs of the user, which causes the user's head to be fixed at a certain angle when using it, which can easily cause problems with the user's cervical spine and affect comfort.

[0005] In view of this, the utility model provides a seat tilt adjustment mechanism. Utility Model Content

[0006] The utility model provides a seat tilt adjustment mechanism, which solves the problem of seat adjustment function in the related art.

[0007] The technical solution of the utility model is as follows: a seat reclining adjustment mechanism comprises a bracket and an adjustment mechanism arranged on a side of the bracket, the side of the bracket is rotatably connected to a threaded rod, the surface of the threaded rod is threadedly connected to a slider, the side of the slider is fixedly connected to a sliding column, the surface of the sliding column is fitted with a first gear, the top of the first gear is meshed with a second gear, the side of the second gear is fixedly connected to a rotating shaft, and the surface of the rotating shaft is fixedly connected to an adjustment rod.

[0008] Preferably, a headrest is fixedly connected to the surface of the adjusting rod, a back cushion is fixedly connected to the surface of the bracket, a seat cushion is rotatably connected to the bottom of the back cushion, a lifting frame is fixedly connected to the bottom of the seat cushion, an armrest is rotatably connected to the side of the lifting frame, a hook is slidably connected to the surface of the armrest, and a roller is fixedly connected to the bottom of the lifting frame.

[0009] Preferably, the slider is arranged in an "L" shape, and the slider forms a sliding structure through a threaded rod.

[0010] Preferably, a side surface of the bracket is provided with a transverse sliding groove, and the transverse sliding groove on the side surface of the bracket is used for limiting the sliding block.

[0011] Preferably, a vertically arranged sliding groove is provided on the side surface of the first gear, and the first gear forms a swinging structure through a sliding block.

[0012] Preferably, the circumference of the first gear is half of the circumference of the second gear, and the second gear forms a rotating structure through the first gear.

[0013] Preferably, the rotating shaft is arranged at the center of the second gear, and the rotating shaft forms a rotating structure through the second gear.

[0014] Preferably, the headrest, back cushion and seat cushion are all provided with ventilation holes on the side in contact with the human body.

[0015] The working principle and beneficial effects of the utility model are:

[0016] In the utility model, an adjustment mechanism is provided, and the user can control the rotation of the threaded rod, and then drive the headrest to rotate through the joint movement of the slider, the sliding column, the first gear, the second gear, the rotating shaft, and the adjusting rod, so as to achieve the purpose of adjusting the inclination angle of the headrest according to one's own needs, so as to adapt to different users, achieve the purpose of protecting the user's cervical vertebra, and ensure the user's comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0018] Figure 1 It is a schematic diagram of the first three-dimensional structure of the utility model;

[0019] Figure 2 It is a second three-dimensional structural schematic diagram of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the adjustment rod of the utility model;

[0021] Figure 4 This is a schematic diagram of the ventilation hole structure of the utility model.

[0022] In the figure: 1. bracket; 2. adjustment mechanism; 21. threaded rod; 22. slider; 23. sliding column; 24. first gear; 25. second gear; 26. rotating shaft; 27. adjustment rod; 3. headrest; 4. back cushion; 5. seat cushion; 6. lifting frame; 7. armrest; 8. hook; 9. roller. DETAILED DESCRIPTION

[0023] The following will be combined with 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 of 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.

[0024] Example 1

[0025] The preferred embodiment of the soil remediation agent filling device for preventing agent residue provided by the utility model is as follows: Figures 1 to 4 As shown: a seat reclining adjustment mechanism comprises a bracket 1 and an adjustment mechanism 2 arranged on the side of the bracket 1, a threaded rod 21 is rotatably connected to the side of the bracket 1, a slider 22 is threadedly connected to the surface of the threaded rod 21, a sliding column 23 is fixedly connected to the side of the slider 22, a first gear 24 is fitted on the surface of the sliding column 23, a second gear 25 is meshed on the top of the first gear 24, a rotating shaft 26 is fixedly connected to the side of the second gear 25, and an adjusting rod 27 is fixedly connected to the surface of the rotating shaft 26.

[0026] In this embodiment, the slider 22 is set in an "L" shape, and the slider 22 forms a sliding structure through the threaded rod 21. Since the slider 22 and the threaded rod 21 are threadedly connected, when the threaded rod 21 rotates, it will drive the slider 22 to slide forward in the horizontal sliding groove on the side of the bracket 1.

[0027] In this embodiment, a horizontally arranged slide groove is provided on the side of the bracket 1, and the horizontal slide groove on the side of the bracket 1 is used to limit the slider 22. By setting the slide groove on the side of the bracket 1, the slider 22 can be limited so that the slider 22 slides in a horizontal straight line when sliding.

[0028] In this embodiment, a vertically arranged slide groove is opened on the side of the first gear 24, and the first gear 24 forms a swing structure through the slider 22. Since the slide groove of the first gear 24 is arranged vertically, when the slider 22 drives the sliding column 23 to slide downward, a rightward thrust will be applied to the first gear 24, and the first gear 24 will swing counterclockwise.

[0029] In this embodiment, the circumference of the first gear 24 is half of the circumference of the second gear 25. The second gear 25 forms a rotating structure through the first gear 24. Since the second gear 25 is meshed with the first gear 24, when the first gear 24 swings, it will drive the second gear 25 to rotate clockwise.

[0030] In this embodiment, the rotating shaft 26 is arranged at the center of the second gear 25, and the rotating shaft 26 forms a rotating structure through the second gear 25. Because the rotating shaft 26 is fixedly connected to the second gear 25, when the second gear 25 rotates, the rotating shaft 26 will be driven to rotate clockwise. At this time, the adjusting rod 27 fixedly connected to the rotating shaft 26 will rotate clockwise accordingly, and drive the headrest 3 fixedly connected to the adjusting rod 27 to rotate clockwise, so as to achieve the purpose of adjusting the angle of the headrest 3.

[0031] Example 2

[0032] Based on Example 1, a preferred embodiment of the soil remediation agent filling device for preventing agent residue provided by the utility model is as follows: Figures 1 to 4 As shown: a headrest 3 is fixedly connected to the surface of the adjusting rod 27, a back cushion 4 is fixedly connected to the surface of the bracket 1, a seat cushion 5 is rotatably connected to the bottom of the back cushion 4, a lifting frame 6 is fixedly connected to the bottom of the seat cushion 5, an armrest 7 is rotatably connected to the side of the lifting frame 6, a hook 8 is slidably connected to the surface of the armrest 7, and a roller 9 is fixedly connected to the bottom of the lifting frame 6.

[0033] In this embodiment, the side of the headrest 3, back cushion 4 and seat cushion 5 that contacts the human body are all provided with ventilation holes, which can prevent the user from feeling stuffy and having skin problems when using the seat, and further protect the user's comfort.

[0034] The working principle and use process of the utility model are as follows: first, the user can sit on the seat cushion 5, and then manually rotate the threaded rod 21. When the threaded rod 21 is rotated clockwise, since the slider 22 is threadedly connected to the threaded rod 21, when the threaded rod 21 rotates, it will drive the slider 22 to slide forward in the horizontal slide groove on the side of the bracket 1. At this time, the sliding column 23 fixedly connected to the slider 22 will slide in the slide groove of the first gear 24. Since the slide groove of the first gear 24 is vertically arranged, when the slider 22 drives the sliding column 23 to slide downward, it will exert a rightward force on the first gear 24. Thrust, at this time, the first gear 24 will swing counterclockwise, because the second gear 25 is meshed with the first gear 24, so when the first gear 24 swings, it will drive the second gear 25 to rotate clockwise, and at this time, the rotating shaft 26 fixedly connected to the second gear 25 will rotate clockwise, and since the adjusting rod 27 is fixedly connected to the rotating shaft 26, when the rotating shaft 26 rotates, it will drive the adjusting rod 27 to rotate together, and at this time, the headrest 3 fixedly connected to the adjusting rod 27 will rotate clockwise, so as to achieve the purpose of adjusting the angle of the headrest 3, so as to protect the user's cervical spine and use feeling;

[0035] Because the side of the headrest 3, back cushion 4 and seat cushion 5 that contacts the human body are all provided with ventilation holes, it can prevent the user from feeling stuffy and having skin problems when using the seat, further protecting the user's comfort. In addition, a hook 8 is provided on the armrest 7, and the user can hang a handbag on it, increasing the practical performance of the seat.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A seat reclining adjustment mechanism, comprising a bracket (1) and an adjustment mechanism (2) arranged on a side of the bracket (1), characterized in that: The side of the bracket (1) is rotatably connected to a threaded rod (21), the surface of the threaded rod (21) is threadedly connected to a slider (22), the side of the slider (22) is fixedly connected to a sliding column (23), the surface of the sliding column (23) is fitted with a first gear (24), the top of the first gear (24) is meshed with a second gear (25), the side of the second gear (25) is fixedly connected to a rotating shaft (26), and the surface of the rotating shaft (26) is fixedly connected to an adjusting rod (27).

2. A seat reclining adjustment mechanism according to claim 1, characterized in that: The surface of the adjustment rod (27) is fixedly connected to a headrest (3), the surface of the bracket (1) is fixedly connected to a back cushion (4), the bottom of the back cushion (4) is rotatably connected to a seat cushion (5), the bottom of the seat cushion (5) is fixedly connected to a lifting frame (6), the side of the lifting frame (6) is rotatably connected to an armrest (7), the surface of the armrest (7) is slidably connected to a hook (8), and the bottom of the lifting frame (6) is fixedly connected to a roller (9).

3. A seat reclining adjustment mechanism according to claim 1, characterized in that: The slider (22) is arranged in an "L" shape, and the slider (22) forms a sliding structure through the threaded rod (21).

4. A seat reclining adjustment mechanism according to claim 1, characterized in that: A sliding groove arranged in a transverse direction is provided on the side of the bracket (1), and the transverse sliding groove on the side of the bracket (1) is used for limiting the sliding block (22).

5. The seat reclining adjustment mechanism according to claim 1, characterized in that: A vertically arranged sliding groove is provided on the side surface of the first gear (24), and the first gear (24) forms a swinging structure through a sliding block (22).

6. The seat reclining adjustment mechanism according to claim 1, characterized in that: The circumference of the first gear (24) is half the circumference of the second gear (25), and the second gear (25) forms a rotating structure through the first gear (24).

7. The seat reclining adjustment mechanism according to claim 1, characterized in that: The rotating shaft (26) is arranged at the center of the second gear (25), and the rotating shaft (26) forms a rotating structure through the second gear (25).

8. The seat reclining adjustment mechanism according to claim 2, characterized in that: The sides of the headrest (3), back cushion (4) and seat cushion (5) that are in contact with the human body are all provided with ventilation holes.

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