Adjustment structure of an office chair

Abstract

The utility model relates to the field of adjustment technology and discloses an adjustment structure of an office chair, which solves the problem that it is inconvenient to adjust the angle of the backrest according to the use requirements of the current office chair, which affects the use. The utility model comprises a seat cushion, one end of the seat cushion is rotatably connected to the backrest, the lower end of the seat cushion is connected to a telescopic rod, the lower end of the telescopic rod is connected to a bottom plate, and both sides of the upper end of the seat cushion are connected to armrests. The utility model adjusts the setting of a limit assembly, presses a knob to one side, so that the knob is no longer fixedly connected to the fixing rod, so that the sawtooth block is fixed to the sawtooth groove, and rotates the knob to adjust the angle of the backrest. Under the elastic potential energy of the spring, the movable plate drives the sawtooth block to move to one side, so that the fixing rod is inserted into the fixing groove, so that the knob is fixed. Under the fixed limit of the adjustment limit assembly, the backrest is convenient to adjust, which is convenient for the user to use efficiently.

Description

Technical Field

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

[0002] Office chairs refer to various chairs equipped for the convenience of work in daily work and social activities. Office partners divide office chairs into narrow and broad sense. The narrow sense of office chairs refers to the backrest chairs that people sit on when they work on the desk in a sitting position. The broad sense of office chairs refers to all chairs used in offices, including executive chairs, mid-shift chairs, reception chairs, staff chairs, conference chairs, visitor chairs, training chairs, etc. The height of office chairs can be adjusted, and the backrest and seat plate are usually fixedly connected. Maintaining a posture for a long time can easily affect the health of the staff. When the backrest angle needs to be adjusted, it is inconvenient and can only be adjusted by adding a back cushion, which affects the use. However, such office chairs are not convenient to adjust the backrest angle according to the use requirements, which affects the use. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides an adjustment structure of an office chair, which effectively solves the problem that the backrest of the current office chair is inconvenient to adjust the angle according to the use requirements, which affects the use.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustment structure of an office chair, comprising a seat cushion, one end of the seat cushion is rotatably connected to a backrest, the lower end of the seat cushion is connected to a telescopic rod, the lower end of the telescopic rod is connected to a base plate, both sides of the upper end of the seat cushion are connected to armrests, one side of the seat cushion is connected to an adjustment limit assembly, the adjustment limit assembly includes a fixed seat installed on one side of the interior of the seat cushion, one end of the fixed seat is connected to a round rod, one end of the round rod extends through and extends to the outside of the seat cushion and is connected to a knob, and the backrest is sleeved on the outside of the round rod.

[0005] Preferably, one end of the round rod extends through and extends to the inside of the fixed seat and is connected to a movable plate, one end of the movable plate is connected to a serrated block, one end of the movable plate is rotatably connected to a spring, one end of the spring is connected to one side of the inner wall of the fixed seat, one end of the movable plate is connected with limiting rods extending through and connected on all sides, and both ends of the limiting rods are connected to both sides of the inner wall of the fixed seat.

[0006] Preferably, a fixing plate is connected to one side of the inner wall of the fixing seat, and a sawtooth groove is formed at one end of the fixing plate, and the sawtooth groove is matched with the sawtooth block.

[0007] Preferably, a fixing groove is formed at one end of the knob, a bracket is connected to one side of the seat cushion, a fixing rod is connected to one end of the bracket, and one end of the fixing rod extends to the inside of the fixing groove.

[0008] Compared with the prior art, the beneficial effects of the utility model are:

[0009] The utility model adjusts the setting of the limit assembly and presses the knob to one side so that the knob is no longer fixedly connected to the fixing rod, so that the sawtooth block is fixed to the sawtooth groove, and the knob is turned to adjust the angle of the backrest. Under the elastic potential energy of the spring, the movable plate drives the sawtooth block to move to one side, and then the fixing rod is inserted into the fixing groove, so that the knob is fixed. Under the fixed limit of the limit assembly, the backrest can be easily adjusted, which improves the user's efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0011] In the attached picture:

[0012] Figure 1 This is a front view of the adjustment structure of an office chair of the utility model;

[0013] Figure 2 This is a schematic diagram of the connection structure of the handrail of the utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the adjustable limit assembly of the utility model;

[0015] Figure 4 It is a schematic diagram of the structure of the sawtooth groove of the utility model.

[0016] In the figure: 1, seat cushion; 2, backrest; 3, telescopic rod; 4, bottom plate; 5, armrest; 6, adjustment limit assembly; 61, fixed seat; 62, round rod; 63, knob; 64, movable plate; 65, serrated block; 66, limit rod; 67, fixed plate; 68, serrated groove; 69, spring; 610, bracket; 611, fixed rod; 612, fixed groove. DETAILED DESCRIPTION

[0017] The following is combined with Figure 1-4 This application is described in further detail.

[0018] The present application embodiment discloses an adjustment structure of an office chair. Figure 1-2, including a seat cushion 1, one end of the seat cushion 1 is rotatably connected to a backrest 2, the lower end of the seat cushion 1 is connected to a telescopic rod 3, the lower end of the telescopic rod 3 is connected to a bottom plate 4, both sides of the upper end of the seat cushion 1 are connected to armrests 5, one side of the seat cushion 1 is connected to an adjustment limit assembly 6, the adjustment limit assembly 6 includes a fixed seat 61 installed on one side of the seat cushion 1, one end of the fixed seat 61 is connected to a round rod 62, one end of the round rod 62 extends through and extends to the outside of the seat cushion 1 and is connected to a knob 63, the backrest 2 is sleeved on the outside of the round rod 62, and the backrest 2 is rotatably connected to the round rod 62.

[0019] Reference Figure 3-4 , one end of the round rod 62 extends through and extends to the inside of the fixed seat 61 and is connected to a movable plate 64, the round rod 62 drives the movable plate 64 to move, and the movable plate 64 drives the spring 69 to move, so that the spring 69 is in a compressed state, at this time the sawtooth block 64 is engaged with the sawtooth groove 68, so that the knob 63 is in an active state, one end of the movable plate 64 is connected to a sawtooth block 65, one end of the movable plate 64 is rotatably connected to a spring 69, one end of the spring 69 is connected to one side of the inner wall of the fixed seat 61, and one end of the movable plate 64 is penetrated all around A limit rod 66 is connected, and the movable plate 64 slides along the outside of the limit rod 66. Under the limitation of the limit rod 66, the movable plate 64 moves to one side along a straight line. Both ends of the limit rod 66 are connected to the two sides of the inner wall of the fixed seat 61. A fixed plate 67 is connected to one side of the inner wall of the fixed seat 61. The movable plate 64 moves with the serrated block 65, thereby fixing the round rod 62, and then fixing the knob 63. A serrated groove 68 is provided at one end of the fixed plate 67, and the serrated groove 68 is adapted to the serrated block 65.

[0020] Reference Figure 3-4 A fixing groove 612 is formed at one end of the knob 63 , a bracket 610 is connected to one side of the seat cushion 1 , a fixing rod 611 is connected to one end of the bracket 610 , and one end of the fixing rod 611 extends to the inside of the fixing groove 612 .

[0021] The implementation principle of the adjustment structure of an office chair in the embodiment of the present application is as follows: when in use, when the angle of the backrest 2 needs to be adjusted, the knob 63 is pressed to one side so that the knob 63 is no longer fixedly connected to the fixing rod 611, and the knob 63 drives the round rod 62 to move, and the round rod 62 drives the moving plate 64 to move, and the movement of the moving plate 64 drives the sawtooth block 65 to move, so that the sawtooth block 65 is fixed to the sawtooth groove 68. At this time, the spring 69 is in an extruded state and the knob 63 is in an active state. The knob 63 is rotated to adjust the angle of the backrest 2. Because the spring 69 is rotatably connected to the moving plate 64, the rotation of the knob 63 will not drive the spring 69 to rotate. The knob 63 is released, and the moving plate 64 drives the sawtooth block 65 to move to one side under the elastic potential energy of the spring 69, so that the fixing rod 611 is inserted into the fixing groove 612, so that the knob 63 is fixed. Under the fixed limit of the adjustment limit assembly 6, the backrest 2 can be easily adjusted.

[0022] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0023] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustment structure for an office chair, comprising a seat cushion (1), characterized in that: One end of the seat cushion (1) is rotatably connected to a backrest (2); the lower end of the seat cushion (1) is connected to a telescopic rod (3); the lower end of the telescopic rod (3) is connected to a bottom plate (4); both sides of the upper end of the seat cushion (1) are connected to armrests (5); one side of the seat cushion (1) is connected to an adjustment limit assembly (6); the adjustment limit assembly (6) comprises a fixed seat (61) installed on one side of the seat cushion (1); one end of the fixed seat (61) is connected to a round rod (62); one end of the round rod (62) extends through and is connected to a knob (63) outside the seat cushion (1); and the backrest (2) is sleeved on the outside of the round rod (62).

2. The adjustment structure of an office chair according to claim 1, characterized in that: One end of the round rod (62) extends through and into the interior of the fixed seat (61) and is connected to a movable plate (64); one end of the movable plate (64) is connected to a sawtooth block (65); one end of the movable plate (64) is rotatably connected to a spring (69); one end of the spring (69) is connected to one side of the inner wall of the fixed seat (61); one end of the movable plate (64) is connected to a limiting rod (66) extending through and around the periphery; both ends of the limiting rod (66) are connected to two sides of the inner wall of the fixed seat (61).

3. The adjustment structure of an office chair according to claim 2, characterized in that: A fixing plate (67) is connected to one side of the inner wall of the fixing seat (61), and a sawtooth groove (68) is provided at one end of the fixing plate (67), and the sawtooth groove (68) is adapted to the sawtooth block (65).

4. The adjustment structure of an office chair according to claim 1, characterized in that: A fixing groove (612) is formed at one end of the knob (63); a bracket (610) is connected to one side of the seat cushion (1); a fixing rod (611) is connected to one end of the bracket (610); and one end of the fixing rod (611) extends to the inside of the fixing groove (612).

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