Office chair chassis structure and office chair

Abstract

The utility model provides a chassis structure of an office chair. The office chair chassis structure comprises a chair; the chassis is arranged at the bottom of the seat, the chassis comprises a mounting plate, mounting blocks are fixedly connected to the positions, located in the middles of the front face and the back face, of the top of the mounting plate, a connecting plate is rotationally connected to the adjacent faces of the two mounting blocks, and a mounting frame is fixedly connected to the position, close to one side, of the bottom of the connecting plate; and elastic plates are mounted at the positions, located on the front face and the back face, of the bottom of the inner wall of the mounting frame through bolts correspondingly, and limiting rings are fixedly connected to the positions, located at the other ends, of the tops of the elastic plates correspondingly. According to the office chair chassis structure and the office chair provided by the utility model, after the backrest loses backward supporting force, the elastic plate drives the movable rod to reset through self elasticity, and meanwhile, the connecting plate resets, so that the backrest and the chair can return to original positions, the internal structure of the chassis can be reduced through the structure, the assembly is convenient, and meanwhile, the later maintenance cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of office chair chassis, in particular to an office chair chassis structure and an office chair. Background Art

[0002] An office chair refers to a variety of chairs that are used for the convenience of work in daily work and social activities. Office partners divide office chairs into narrow and broad categories. In the narrow sense, an office chair refers to a chair with a backrest that a person sits on when doing desk work in a sitting position. In the broad sense, office chairs refer to all chairs used in offices, including executive chairs, mid-shift chairs, meeting chairs, staff chairs, conference chairs, visitor chairs, training chairs, etc.

[0003] The components of an office chair mainly include chassis, seat back, seat cushion, expansion joint, seat connector, footrest and other parts. The chassis of an office chair is usually made of steel. It is an important component that supports the office chair because its structure and appearance affect the shape and mechanical properties of the office chair.

[0004] In order to allow the chassis of traditional office chairs to automatically rebound when the backrest is adjusted in angle and load-bearing, they have more internal structures, are inconvenient to install, and have high subsequent maintenance costs.

[0005] Therefore, it is necessary to provide an office chair chassis structure and an office chair to solve the above-mentioned technical problems. Utility Model Content

[0006] The utility model provides an office chair chassis structure and an office chair, which solves the problem that the traditional office chair chassis has a large number of internal structures that are inconvenient to install and have high subsequent maintenance costs in order to achieve the purpose of adjusting the angle and load-bearing of the backrest.

[0007] In order to solve the above technical problems, the utility model provides an office chair chassis structure and an office chair comprising: a seat;

[0008] The chassis is arranged at the bottom of the seat, and the chassis comprises a mounting plate, the top of the mounting plate is located at the middle position of the front and back sides and is fixedly connected with a mounting block, the adjacent sides of the two mounting blocks are rotatably connected with a connecting plate, the bottom of the connecting plate is fixedly connected with a mounting frame near one side, the bottom of the inner wall of the mounting frame is located at the front and back sides and is installed with an elastic plate by bolts, the top of the elastic plate is located at the other end and is fixedly connected with a limiting ring, the bottom of the connecting plate is fixedly connected with a limiting block near the middle position, a movable rail is provided on the front side of the limiting block, and movable rods are provided on the front and back sides of the limiting block through movable bolts, and the opposite sides of the two movable rods are fixedly connected with the limiting bolts;

[0009] Connecting block, the connecting block is fixedly connected to the bottom of the mounting plate, the bottom of the connecting block is fixedly connected with a mounting base, reinforcing blocks are fixedly connected to four surfaces of the connecting block, and an adjusting rod is installed on the front surface of the connecting block.

[0010] The chassis includes the structure on the mounting plate. The material of the elastic plate can be composite fiberglass board. The movable bolt moves inside the movable rail, which can play a limiting role while not affecting the left and right movement of the movable rod and allowing a certain movement space. The limiting bolt is located on the opposite side of the two movable rods and at the end far from the movable bolt. The limiting bolt moves inside the limiting ring. The top of the reinforcing block is connected to the bottom of the mounting plate.

[0011] Preferably, four mounting holes are provided at the top of the connecting plate, and a plurality of weight-reducing openings are provided at the top of the connecting plate.

[0012] The weight-reducing openings can reduce the weight of the chassis. The mounting holes are located at the four corners of the top of the connecting plate for convenient connection with the seat.

[0013] Preferably, a rotating buckle is fixedly connected to the middle position on one side of the mounting plate, and a docking plate is rotatably connected to one side of the rotating buckle through a connecting head.

[0014] The docking plate is used to install the backrest, and holes for connecting with the backrest are provided on the docking plate.

[0015] Preferably, a rotating head is fixedly connected to the middle position on the side of the docking plate close to the movable rod, and mounting holes and weight-reducing openings are also provided on one side of the docking plate.

[0016] The rotating head is rotatably connected between the two movable rods at one end position. For details, please refer to Figure 3 .

[0017] Preferably, a movable buckle is fixedly connected to the middle position on the other side of the mounting plate, and a movable head is rotatably connected inside the movable buckle.

[0018] The movable head is rotatably connected inside the movable buckle.

[0019] Preferably, a stabilizing spring is fixedly connected to the top of the movable head, and the top end of the stabilizing spring is rotatably connected to the bottom of the connecting plate through the movable head and the movable buckle.

[0020] The stabilizing spring increases stability when the seat is adjusted in angle. For the installation position of the stabilizing spring, please refer to Figure 6 .

[0021] Preferably, an office chair includes: a backrest and armrests, and a base is installed at the bottom of the mounting base.

[0022] The base includes a lifting structure and a structure that allows the office chair to move.

[0023] Compared with the related technologies, the office chair chassis structure and the office chair provided by the present utility model have the following

[0024] Beneficial effects:

[0025] When it is necessary to install the chassis on the office chair, first fix two elastic plates with limit rings on the mounting bracket through bolts. Then, install two movable rods on both sides of the limit block through movable bolts, and let the movable bolts be inserted into the interior of the movable rail. At the same time, insert the limit bolts on the two movable rods into the interior of the limit ring. Then, install the connecting plate between the two mounting blocks on the mounting plate, and the chassis installation can be completed. After that, only need to connect the chassis with the seat. In the actual use process, the backrest of the office chair is rotatably connected to the two movable rods, and the backrest is also rotatably connected to the mounting plate. When the backrest is adjusted backward in angle, the limit bolts and the movable bolts on the movable rods slide in the interior of the limit ring and the movable rail respectively. At the same time, one end of the elastic plate will bend downward, and one side of the connecting plate will also move downward under pressure, while the other side will tilt up. After the backrest loses the backward supporting force, the elastic plate will drive the movable rod to reset through its own elasticity, and at the same time the connecting plate resets, so that the backrest and the seat can return to their original positions. Through this structure, the structure inside the chassis can be reduced, which is convenient for assembly and saves the later maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of a preferred embodiment of the metal plate double-sided film laminating device provided by the present utility model;

[0027] Figure 2 is a schematic structural diagram of the mounting block provided by the present utility model;

[0028] Figure 3 is a schematic structural diagram of the movable rod provided by the present utility model;

[0029] Figure 4 provided by the present utility model Figure 3 is an enlarged view of the place marked as A shown in the figure;

[0030] Figure 5 is a schematic structural diagram of the mounting base provided by the present utility model;

[0031] Figure 6 is a schematic structural diagram of the stabilizing spring provided by the present utility model.

[0032] Reference numerals in the figure: 101, base; 102, chassis; 103, seat; 104, armrest; 105, backrest; 1, mounting plate; 2, movable buckle; 3, movable head; 4, connecting plate; 5, mounting hole; 6, weight reduction port; 7, docking plate; 8, mounting block; 9, mounting bracket; 10, elastic plate; 11, limiting ring; 12, movable rod; 13, rotating head; 14, limiting block; 15, bolt; 16, movable bolt; 17, movable track; 18, reinforcing block; 19, connecting block; 20, mounting base; 21, adjusting rod; 22, rotating buckle; 23, connecting head; 24, limiting bolt; 25, stabilizing spring. Detailed implementation mode

[0033] The present utility model will be further described below in conjunction with the accompanying drawings and the implementation mode.

[0034] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , wherein, Figure 1 is a schematic structural diagram of a preferred embodiment of the double-sided film coating device for metal plates provided by the present utility model; Figure 2 is a schematic structural diagram of the mounting block provided by the present utility model; Figure 3 is a schematic structural diagram of the movable rod provided by the present utility model;

[0035] Figure 4 is provided by the present utility model Figure 3 The enlarged view of the A position shown; Figure 5 is a schematic structural diagram of the mounting base provided by the present utility model; Figure 6 is a schematic structural diagram of the stabilizing spring provided by the present utility model. The structure of the office chair chassis and the office chair includes: seat 103;

[0036] Chassis 102, the chassis 102 is arranged at the bottom of the seat 103, the chassis 102 includes a mounting plate 1, mounting blocks 8 are fixedly connected to the top of the mounting plate 1 at the middle positions of the front and back, a connecting plate 4 is rotatably connected to one adjacent side of the two mounting blocks 8, a mounting bracket 9 is fixedly connected to the bottom of the connecting plate 4 near one side, elastic plates 10 are installed at the bottom of the inner wall of the mounting bracket 9 at the front and back positions through bolts 15, limiting rings 11 are fixedly connected to the top of the elastic plates 10 at the other ends, a limiting block 14 is fixedly connected to the bottom of the connecting plate 4 near the middle position, a through movable track 17 is opened on the front of the limiting block 14, movable rods 12 are arranged on the front and back of the limiting block 14 through movable bolts 16, and limiting bolts 24 are fixedly connected to the opposite sides of the two movable rods 12;

[0037] Connecting block 19, the connecting block 19 is fixedly connected to the bottom of the mounting plate 1, the bottom of the connecting block 19 is fixedly connected with a mounting base 20, four surfaces of the connecting block 19 are fixedly connected with reinforcing blocks 18, and an adjusting rod 21 is installed on the front surface of the connecting block 19.

[0038] The chassis 102 includes the structure on the mounting plate 1. The material of the elastic plate 10 can be a composite fiberglass board. The movable bolt 16 moves inside the movable rail 17, which can play a limiting role while not affecting the left and right movement of the movable rod 12, and there is a certain moving space. The limiting bolt 24 is located on the opposite side of the two movable rods 12 and at one end away from the movable bolt 16. The limiting bolt 24 moves inside the limiting ring 11, and the top of the reinforcing block 18 is connected to the bottom of the mounting plate 1.

[0039] Four mounting holes 5 are provided at the top of the connecting plate 4, and multiple weight-reducing openings 6 are provided at the top of the connecting plate 4.

[0040] The weight-reducing openings 6 can reduce the weight of the chassis 102. The mounting holes 5 are located at the four corners of the top of the connecting plate 4 for convenient connection with the seat 103.

[0041] A rotating buckle 22 is fixedly connected to the middle position on one side of the mounting plate 1, and a docking plate 7 is rotatably connected to one side of the rotating buckle 22 through a connecting head 23.

[0042] The docking plate 7 is used to install the backrest 105, and holes for connecting with the backrest 105 are provided on the docking plate 7.

[0043] A rotating head 13 is fixedly connected to the middle position on the side of the docking plate 7 close to the movable rod 12, and mounting holes 5 and weight-reducing openings 6 are also provided on one side of the docking plate 7.

[0044] The rotating head 13 is rotatably connected between the two movable rods 12 at one end position. For details, please refer to Figure 3 。

[0045] A movable buckle 2 is fixedly connected to the middle position on the other side of the mounting plate 1, and a movable head 3 is rotatably connected inside the movable buckle 2.

[0046] The movable head 3 is rotatably connected inside the movable buckle 2.

[0047] The top of the movable head 3 is fixedly connected with a stabilizing spring 25, and the top end of the stabilizing spring 25 is rotatably connected to the bottom of the connecting plate 4 through the movable head 3 and the movable buckle 2.

[0048] The stabilizing spring 25 increases stability when the seat 103 is adjusted in angle. The installation position of the stabilizing spring 25 can be referred to Figure 6 。

[0049] An office chair, comprising: a backrest 105 and armrests 104, and a base 101 is installed at the bottom of the mounting base.

[0050] The base 101 includes a lifting structure and a structure that allows the office chair to move.

[0051] The chassis structure of the office chair and the working principle of the office chair provided by the present utility model are as follows:

[0052] First, fix two elastic plates 10 with limit rings 11 on the mounting frame 9 through bolts 15. Then, install two movable rods 12 on both sides of the limit block 14 through movable bolts 16, and let the movable bolts 16 be inserted into the interior of the movable rails 17. At the same time, insert the limit bolts 24 on the two movable rods 12 into the interior of the limit rings 11. Then, install the connecting plate 4 between two mounting blocks 8 on the mounting plate 1, and the chassis 102 can be installed. After that, only need to connect the chassis 102 with the seat 103. In the actual use process, the office chair backrest 105 is rotatably connected to the two movable rods 12, and the backrest 105 is also rotatably connected to the mounting plate 1. When the backrest 105 adjusts the angle backward, the limit bolts 24 and the movable bolts 16 on the movable rods 12 slide in the interior of the limit rings 11 and the movable rails 17 respectively. At the same time, one end of the elastic plate 10 will bend downward, and one side of the connecting plate 4 will also move downward under pressure, while the other side tilts up. After the backrest 105 loses the backward supporting force, the elastic plate 10 will drive the movable rod 12 to reset through its own elasticity, and at the same time the connecting plate 4 resets, so that the backrest 105 and the seat 103 can return to their original positions.

[0053] Compared with the related art, the office chair chassis structure and the office chair provided by the present utility model have the following

[0054] Advantages:

[0055] When it is necessary to install the chassis 102 on the office chair, first fix the two elastic plates 10 with limit rings 11 on the mounting bracket 9 through bolts 15. Then, install the two movable rods 12 on both sides of the limit block 14 through movable bolts 16, and let the movable bolts 16 be stuck into the interior of the movable rails 17. At the same time, insert the limit bolts 24 on the two movable rods 12 into the interior of the limit rings 11. Then, install the connecting plate 4 between the two mounting blocks 8 on the mounting plate 1, and the chassis 102 can be installed. After that, only need to connect the chassis 102 with the seat 103. In the actual use process, the backrest 105 of the office chair is rotatably connected to the two movable rods 12, and the backrest 105 is also rotatably connected to the mounting plate 1. When the backrest 105 adjusts the angle backward, the limit bolts 24 and the movable bolts 16 on the movable rods 12 slide inside the limit rings 11 and the movable rails 17 respectively. At the same time, one end of the elastic plate 10 will bend downward, and one side of the connecting plate 4 will also move downward after being subjected to pressure, while the other side will tilt up. After the backrest 105 loses the backward supporting force, the elastic plate 10 will drive the movable rod 12 to reset through its own elasticity, and at the same time the connecting plate 4 resets, so that the backrest 105 and the seat 103 can return to their original positions. Through this structure, the internal structure of the chassis 102 can be reduced, which is convenient for assembly and saves the later maintenance cost.

[0056] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present invention.

Claims

1. Office chair chassis structure, characterized in that, Comprising: A seat; A chassis, the chassis is arranged at the bottom of the seat, the chassis includes a mounting plate, mounting blocks are fixedly connected to the middle positions of the top of the mounting plate at the front and back, a connecting plate is rotatably connected to one adjacent side of the two mounting blocks, a mounting bracket is fixedly connected to a position close to one side of the bottom of the connecting plate, elastic plates are mounted at the front and back positions of the inner wall of the bottom of the mounting bracket by bolts, limiting rings are fixedly connected to the positions at the other ends of the tops of the elastic plates, a limiting block is fixedly connected to a position close to the middle of the bottom of the connecting plate, a through activity track is opened on the front of the limiting block, activity rods are arranged on the front and back of the limiting block through activity bolts, and limiting bolts are fixedly connected to the opposite sides of the two activity rods; A connecting block, the connecting block is fixedly connected to the bottom of the mounting plate, a mounting base is fixedly connected to the bottom of the connecting block, reinforcing blocks are fixedly connected to the four surfaces of the connecting block, and an adjusting rod is mounted on the front of the connecting block.

2. The office chair chassis structure according to claim 1, characterized in that, Four mounting holes are opened on the top of the connecting plate, and a plurality of weight reduction openings are opened on the top of the connecting plate.

3. The office chair chassis structure according to claim 1, characterized in that, A rotating buckle is fixedly connected to the middle position of one side of the mounting plate, and a docking plate is rotatably connected to one side of the rotating buckle through a connecting head.

4. The office chair chassis structure according to claim 3, characterized in that, A rotating head is fixedly connected to the middle position of one side of the docking plate close to the activity rod, and mounting holes and weight reduction openings are also opened on one side of the docking plate.

5. The office chair chassis structure according to claim 1, characterized in that, An activity buckle is fixedly connected to the middle position of the other side of the mounting plate, and an activity head is rotatably connected to the inside of the activity buckle.

6. The office chair chassis structure according to claim 5, characterized in that, A stabilizing spring is fixedly connected to the top of the activity head, and the top end of the stabilizing spring is rotatably connected to the bottom of the connecting plate through the activity head and the activity buckle.

7. An office chair, characterized in that, Comprising: A backrest and armrests and the office chair chassis structure according to any one of claims 1-6, and a base is mounted at the bottom of the mounting base.

Images