Steel tube chair

Abstract

The utility model relates to a steel tube chair which comprises a seat plate and a back plate, the bottom of the seat plate is fixedly connected with a buffer mechanism, two sides of the upper surface of the seat plate are fixedly connected with adjusting mechanisms, one side of the back surface of the back plate is fixedly connected with a headrest mechanism, and the buffer mechanism comprises an I-shaped plate. Through the arrangement of the adjusting mechanism and the headrest mechanism, during use, a double-shaft motor is started, the two sides drive driving rods to rotate, then the driving rods on the two sides drive a first belt wheel to rotate, the first belt wheel rotates to drive a second belt wheel to rotate, then the second belt wheel rotates to drive a headrest plate to turn over, and then the inclination angle of the headrest plate is changed; and meanwhile, a lead screw is rotated to drive a pull rod to horizontally move, a back plate is pushed through a side plate while the pull rod moves, then the inclination angle of the back plate is changed, the backrest angle of a patient is changed according to the requirement of the patient, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe chairs, in particular to a steel pipe chair. Background Art

[0002] A chair is a kind of daily furniture, a seat with a backrest and armrests. Chairs have strong practicability and can be found in every room. Its main function is to facilitate people's rest. Therefore, its comfort is the main criterion for measuring the quality of a chair. A steel pipe chair is a chair whose main frame is composed of steel pipes. It has a simple structure and a low price, and is deeply loved by people. It is an indispensable furniture in life and work, and can be seen in public places such as homes, offices, and meeting rooms.

[0003] The angle of the headrest on the existing steel pipe chair is relatively fixed and not easy to adjust, which makes it inconvenient for users to use. At the same time, the existing steel pipe chair has poor comfort and weak practicability. Summary of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] In order to solve the above problems of the existing technology, the utility model provides a steel pipe chair, which solves the problems that the angle of the headrest on the existing steel pipe chair is relatively fixed and not easy to adjust, which makes it inconvenient for users to use, and at the same time, the existing steel pipe chair has poor comfort and weak practicability.

[0006] (2) Technical Solutions

[0007] In order to achieve the above purpose, the main technical solution adopted by the utility model is as follows:

[0008] A steel pipe chair includes a seat board and a back board. A buffer mechanism is fixedly connected to the bottom of the seat board. Adjusting mechanisms are fixedly connected to both sides of the upper surface of the seat board. A headrest mechanism is fixedly connected to one side of the back of the back board.

[0009] The buffer mechanism includes an I-shaped plate. Thrust rods penetrate through the four corners of the surface of the I-shaped plate. The tops of the four thrust rods are fixedly connected to the four corners of the bottom of the seat board. Buffer springs are sleeved on the surfaces of the thrust rods. The bottoms of the four thrust rods are fixedly connected to a blocking plate.

[0010] The adjusting mechanism includes an armrest frame. A drawing cavity is formed inside the top of the armrest frame. A drawing rod penetrates through one side of the drawing cavity. The other side of the armrest frame is rotatably connected to a lead screw through a first bearing. One end of the drawing rod is rotatably connected to a side plate through a movable hinge. One side of the side plate is fixedly connected to the side of the back board. The other end of the lead screw is threadedly inserted into the inside of the other end of the drawing rod.

[0011] The headrest mechanism includes a biaxial motor and a pillow plate. Transmission rods are splined to both sides of the biaxial motor. The other ends of the two transmission rods are fixedly connected to drive rods. The other ends of the two drive rods are fixedly connected to first pulleys. The sides of the two first pulleys are rotationally connected to a second pulley through a mounting track. Connecting rods are fixedly connected to both sides of the pillow plate. The other ends of the two connecting rods are fixedly connected inside the two second pulleys. A pillow pad is sleeved on the surface of the pillow plate.

[0012] There are two side plates. Through cavities are provided inside the tops of the two side plates. The bottoms of the sides of the two side plates are rotationally connected to the back of the seat plate through a cross bar.

[0013] Support frames are fixedly connected to both sides of the bottom of the I-shaped plate. Anti-slip patterns are provided at the bottoms of the support frames.

[0014] The other ends of the two connecting rods penetrate through one side of the through cavity and are rotationally connected to one side of the inner wall of the through cavity through the installation of a second bearing. A seat cushion is provided in the middle of the upper surface of the seat plate.

[0015] (III) Beneficial effects

[0016] The beneficial effects of the present utility model are as follows: Through the settings of the adjustment mechanism and the headrest mechanism, when in use, the biaxial motor is started, driving the drive rods to rotate on both sides. Subsequently, the drive rods on both sides drive the first pulleys to rotate. The rotation of the first pulleys drives the second pulley to rotate. Subsequently, the rotation of the second pulley drives the pillow plate to turn over, thereby changing the inclination angle of the pillow plate, making it convenient for the user to rest their head, more convenient to use, and with high comfort. At the same time, rotating the lead screw drives the pull rod to move horizontally. While the pull rod is moving, it pushes the back plate through the side plate, thereby changing the inclination angle of the back plate, and thus changing the angle of the patient's backrest according to the patient's needs, improving the practicality of the device. Description of the drawings

[0017] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the buffer mechanism of the present utility model;

[0019] Figure 3 It is a schematic diagram of the structure of the adjustment mechanism of the present utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the headrest mechanism of the present utility model.

[0021]

Explanation of the reference numerals

[0022] 1. Seat board; 2. Backrest; 3. Buffer mechanism; 31. I-shaped plate; 32. Push rod; 33. Buffer spring; 4. Adjustment mechanism; 41. Armrest frame; 42. Pull rod; 43. Lead screw; 44. Side plate; 5. Headrest mechanism; 51. Biaxial motor; 52. Transmission rod; 53. Drive rod; 54. First pulley; 55. Second pulley; 56. Pillow board; 57. Pillow cushion; 6. Cross bar; 7. Support frame; 8. Cushion. Detailed implementation mode

[0023] In order to better explain the present utility model for easy understanding, the present utility model will be described in detail below in conjunction with the drawings and through specific implementation modes.

[0024] Please refer to Figures 1 to 4 As shown, a steel pipe chair of the present utility model includes a seat board 1 and a backrest 2. A buffer mechanism 3 is fixedly connected to the bottom of the seat board 1, adjustment mechanisms 4 are fixedly connected to both sides of the upper surface of the seat board 1, and a headrest mechanism 5 is fixedly connected to one side of the back of the backrest 2. During actual implementation, the biaxial motor 51 is started, driving the drive rods 53 to rotate on both sides. Subsequently, the drive rods 53 on both sides drive the first pulleys 54 to rotate. The rotation of the first pulleys 54 drives the second pulleys 55 to rotate. Subsequently, the rotation of the second pulleys 55 drives the pillow board 56 to turn over, thereby changing the inclination angle of the pillow board 56 and improving comfort. At the same time, the lead screw 43 is rotated to drive the pull rod 42 to move horizontally. While the pull rod 42 moves, it pushes the backrest 2 through the side plate 44, thereby changing the inclination angle of the backrest 2, and thus changing the angle of the patient's backrest according to the patient's needs. Subsequently, the resilience of the buffer spring 33 greatly enhances the compressive capacity of the seat board 1, thereby improving the stability of the device.

[0025] Optionally, the adjustment mechanism 4 includes an armrest frame 41. A pull cavity is formed inside the top of the armrest frame 41. One side of the pull cavity penetrates through a pull rod 42. The other side of the armrest frame 41 is rotatably connected to a lead screw 43 through the installation of a first bearing. One end of the pull rod 42 is rotatably connected to a side plate 44 through the installation of a movable hinge. One side of the side plate 44 is fixedly connected to the side of the backrest 2. The other end of the lead screw 43 is threadedly penetrated into the inside of the other end of the pull rod 42. During actual implementation, the lead screw 43 is rotated to drive the pull rod 42 to move horizontally. While the pull rod 42 moves, it pushes the backrest 2 through the side plate 44, thereby changing the inclination angle of the backrest 2.

[0026] Optionally, the buffer mechanism 3 includes an I-shaped plate 31. Push rods 32 penetrate through the four corners of the surface of the I-shaped plate 31. The tops of the four push rods 32 are fixedly connected to the four corners of the bottom of the seat board 1. Buffer springs 33 are sleeved on the surfaces of the push rods 32. The bottoms of the four push rods 32 are fixedly connected to a blocking plate. During actual implementation, the resilience of the buffer springs 33 greatly enhances the compressive capacity of the seat board 1, thereby improving the stability of the device.

[0027] Optionally, the headrest mechanism 5 includes a biaxial motor 51 and a pillow plate 56. Transmission rods 52 are splined to both sides of the biaxial motor 51. The other ends of the two transmission rods 52 are fixedly connected to a drive rod 53. The other ends of the two drive rods 53 are fixedly connected to a first pulley 54. A second pulley 55 is rotatably connected to the sides of the two first pulleys 54 through a mounting track. Connecting rods are fixedly connected to both sides of the pillow plate 56. The other ends of the two connecting rods are fixedly connected inside the two second pulleys 55. A pillow cushion 57 is sleeved on the surface of the pillow plate 56. In the actual implementation process, when the biaxial motor 51 is started, it drives the drive rods 53 to rotate on both sides. Subsequently, the drive rods 53 on both sides drive the first pulleys 54 to rotate. The rotation of the first pulleys 54 drives the second pulleys 55 to rotate. Subsequently, the rotation of the second pulleys 55 drives the pillow plate 56 to turn over, thereby changing the inclination angle of the pillow plate 56.

[0028] Optionally, support frames 7 are fixedly connected to both sides of the bottom of the I-shaped plate 31. Anti-slip patterns are provided at the bottoms of the support frames 7. In the actual implementation process, through the setting of the anti-slip patterns of the support frames 7, the friction between the bottoms of the support frames 7 and the ground is greatly increased, enhancing the stability of the device.

[0029] Optionally, the number of side plates 44 is two. Through cavities are provided inside the tops of the two side plates 44. The bottoms of the sides of the two side plates 44 are rotatably connected to the back of the seat plate 1 through a cross bar 6. In the actual implementation process, a sleeve adapted to the cross bar 6 is connected to the back of the seat plate 1. The cross bar 6 is rotatably connected to the sleeve, thereby enabling the back plate 2 to be rotatably connected to the seat plate 1 by flipping.

[0030] Optionally, the other ends of the two connecting rods penetrate through one side of the through cavity and are rotatably connected to one side of the inner wall of the through cavity by installing a second bearing. A seat cushion 8 is provided in the middle of the upper surface of the seat plate 1. In the actual implementation process, through the setting of the seat cushion 8, the comfort level of the surface of the seat plate 1 is improved.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Moreover, the standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the records in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machines, parts and equipment all adopt conventional models in the prior art. Coupled with the circuit connection adopting the conventional connection method in the prior art, it will not be elaborated here.

[0032] The above description is only an embodiment of the present invention, and thus does not limit the patent scope of the present invention. All equivalent transformations made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in related technical fields, are equally included in the patent protection scope of the present invention.

Claims

1. A steel tube chair, comprising a seat plate (1) and a back plate (2), characterized in that: The bottom of the seat plate (1) is fixedly connected to a buffer mechanism (3), both sides of the upper surface of the seat plate (1) are fixedly connected to adjustment mechanisms (4), and one side of the back of the back plate (2) is fixedly connected to a headrest mechanism (5); the adjustment mechanism (4) comprises an armrest frame (41), a pull-out cavity is provided inside the top of the armrest frame (41), a pull-out rod (42) passes through one side of the pull-out cavity, a screw rod (43) is rotatably connected inside the other side of the armrest frame (41) by installing a first bearing, one end of the pull-out rod (42) is rotatably connected to a side plate (44) by installing a movable hinge, one side of the side plate (44) is fixedly connected to the side of the back plate (2), and the other end of the screw rod (43) is threaded. The headrest mechanism (5) is inserted into the interior of the other end of the pull rod (42); the headrest mechanism (5) comprises a dual-axis motor (51) and a pillow plate (56); both sides of the dual-axis motor (51) are spline-connected with transmission rods (52); the other ends of the two transmission rods (52) are fixedly connected with driving rods (53); the other ends of the two driving rods (53) are fixedly connected with first pulleys (54); the sides of the two first pulleys (54) are rotatably connected with second pulleys (55) by installing crawler tracks; both sides of the pillow plate (56) are fixedly connected with connecting rods; the other ends of the two connecting rods are fixedly connected to the interior of the two second pulleys (55); and the surface of the pillow plate (56) is sleeved with a pillow pad (57).

2. The steel pipe chair according to claim 1, characterized in that: The buffer mechanism (3) comprises an I-shaped plate (31), wherein four corners of the surface of the I-shaped plate (31) are penetrated by push rods (32), the tops of the four push rods (32) are fixedly connected to the four corners of the bottom of the seat plate (1), the surfaces of the push rods (32) are sleeved with buffer springs (33), and the bottoms of the four push rods (32) are fixedly connected to blocking plates.

3. The steel pipe chair according to claim 2, characterized in that: There are two side panels (44), the tops of the two side panels (44) are provided with through cavities, and the bottoms of the sides of the two side panels (44) are rotatably connected to the back of the seat panel (1) via a cross bar (6).

4. The steel tube chair according to claim 3, characterized in that: Both sides of the bottom of the I-shaped plate (31) are fixedly connected to support frames (7), and the bottom of the support frame (7) is provided with anti-slip grooves.

5. The steel pipe chair according to claim 4, characterized in that: The other ends of the two connecting rods pass through one side of the through cavity and are rotatably connected to one side of the inner wall of the through cavity by installing a second bearing. A seat cushion (8) is provided in the middle of the upper surface of the seat plate (1).

Images