A portable office chair

Abstract

The utility model discloses a portable office chair relates to office chair technical field, include: cushion, backrest, support leg, telescopic mechanism, it includes fixedly connected in the two square tubes below cushion, two square tubes all have the extension link of sliding connection in, and the leg support is rotatably connected between two extension links, and one extension link is vertically slidingly connected with the locking plate, and the locking plate is inserted with square tube cooperation. Through setting telescopic mechanism, when lengthening the leg support position, directly push the adjusting rod, can adjust the position of leg support, when needing to contract the leg support, hold down the pressing rod, can drive the abutting rod to move, and in the process of abutting rod movement, through the cooperation of with horizontal groove, abutting groove, makes the locking plate from locking groove pull out, and extension link is in square tube sliding to the appropriate position, and loosens the pressing rod, can lock the leg support position to the different height, different leg length crowd is carried out self -adaptation adaptation, improves the comfort degree of office chair.

Description

Technical Field

[0001] This utility model relates to the field of office chair technology, specifically a portable office chair. Background Technology

[0002] Office chairs refer to various chairs provided for convenience in daily work and social activities. Office chairs can be divided into narrow and broad definitions. In a narrow sense, office chairs refer to backrest chairs used for desk work in a seated position. In a broad sense, office chairs include all chairs used in offices, such as executive chairs, mid-level chairs, guest chairs, staff chairs, conference chairs, visitor chairs, and training chairs.

[0003] For example, the publication number is CN219578567U, the publication date is August 25, 2023, and the title is "A Multifunctional Office Chair". It includes a seat, a backrest rotatably connected to one end of the seat, and a leg rest rotatably connected to the end of the seat away from the backrest. In this invention, when the user needs to lie down and rest, the locking mechanism releases the lock on the rotating shaft. Then, the user pushes the backrest counterclockwise to unfold it. Simultaneously, the backrest drives a first reversing gear to rotate. The first reversing gear drives a rotating shaft to rotate via a second reversing gear. The rotating shaft, through the first and second reversing gears at the other end, drives the leg rest to rotate counterclockwise, simultaneously unfolding the leg rest. After reaching the desired angle, the locking mechanism locks the rotating shaft, thus fixing the unfolded angle of the backrest and leg rest. This unfoldable office chair allows employees to lie down and rest, effectively improving the practicality of the office chair.

[0004] As described in the aforementioned patent, the leg rest can only be opened by rotating and folded back as it is rotated. The leg rest is of a fixed length and cannot be extended or retracted arbitrarily, thus preventing people of different heights and leg lengths from adapting to different user groups when using this office chair. Utility Model Content

[0005] The purpose of this invention is to provide a portable office chair to address the shortcomings of the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a portable office chair, comprising:

[0007] cushion;

[0008] The backrest is fixedly connected to the seat cushion;

[0009] The support legs are located under the seat cushion;

[0010] The telescopic mechanism includes two square tubes fixedly connected to the bottom of the seat cushion. An extension rod is slidably connected inside each square tube. A leg support is rotatably connected between the two extension rods. A locking plate is vertically slidably connected to one of the extension rods. The locking plate is inserted into the square tube. A horizontal groove is provided on the extension rod. An abutment groove is provided on the locking plate. An adjusting rod is fixedly connected to the extension rod. A pressing rod is slidably connected inside the adjusting rod. An abutment rod is fixedly connected to the pressing rod. The end of the abutment rod slides and abuts against the horizontal groove and the abutment groove. A first elastic element is provided between the pressing rod and the adjusting rod.

[0011] Furthermore, it also includes an adjustment mechanism, which includes a rotating shaft fixedly connected to the leg rest, an adjustment disc fixedly connected to the extension rod, a fixed rod fixedly connected to the leg rest, a sliding sleeve slidably connected to the fixed rod, a second elastic element provided between the sliding sleeve and the fixed rod, the end of the sliding sleeve being inserted into the adjustment disc, and a handle fixedly connected to the sliding sleeve.

[0012] Furthermore, the adjusting plate has multiple insertion holes, and the end of the sliding sleeve is inserted into each insertion hole.

[0013] Furthermore, the square tube has a slot for the adjusting rod to slide.

[0014] Furthermore, the square tube is provided with multiple locking grooves, and the locking plate is inserted into each locking groove.

[0015] Furthermore, the bottom of the locking plate is sloped.

[0016] Compared with existing technologies, the portable office chair provided by this utility model has a telescopic mechanism. When extending the leg rest, the position of the leg rest can be adjusted by directly pushing the adjustment rod. When it is necessary to retract the leg rest, pressing the pressing rod will move the abutment rod. During the movement of the abutment rod, the locking plate is pulled out of the locking groove through cooperation with the horizontal groove and the abutment groove. The extension rod slides to the appropriate position in the square tube. Releasing the pressing rod will lock the position of the leg rest. This allows for adaptive adaptation to people of different heights and leg lengths, improving the comfort of the office chair. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0019] Figure 2This is a schematic diagram of the overall structure from another angle, representing an embodiment of the present utility model.

[0020] Figure 3 This is a schematic diagram of the structure with the support legs removed, provided in an embodiment of the present utility model;

[0021] Figure 4 A schematic diagram of the telescopic mechanism provided in this embodiment of the utility model;

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the adjusting rod provided in an embodiment of the present utility model;

[0023] Figure 6 A schematic diagram of the adjustment mechanism structure provided in this embodiment of the utility model;

[0024] Figure 7 A schematic diagram of the cross-sectional structure of the sliding sleeve provided in an embodiment of this utility model.

[0025] Explanation of reference numerals in the attached drawings: 1. Seat cushion; 2. Backrest; 3. Legs; 4. Telescopic mechanism; 41. Square tube; 411. Groove; 412. Locking groove; 42. Extension rod; 421. Horizontal groove; 43. Locking plate; 431. Abutment groove; 44. Adjusting rod; 45. Pressing rod; 46. Abutment rod; 47. First elastic element; 48. Leg rest; 5. Adjusting mechanism; 51. Rotating shaft; 52. Adjusting disc; 521. Insertion hole; 53. Fixing rod; 54. Sliding sleeve; 55. Second elastic element; 56. Handle. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0027] Please see Figure 1-7 The present invention provides a portable office chair, comprising: a seat cushion 1; a backrest 2 fixedly connected to the seat cushion 1; and support legs 3 located below the seat cushion 1. In addition, a headrest is provided on the backrest 2; and armrests are provided on both sides of the seat cushion 1. The headrest and armrests are existing technologies and will not be described in detail here.

[0028] The telescopic mechanism 4 includes two square tubes 41 fixedly connected to the bottom of the seat cushion 1. Extension rods 42 are slidably connected inside each square tube 41, and a leg rest 48 is rotatably connected between the two extension rods 42. A locking plate 43 is vertically slidably connected to one of the extension rods 42. Specifically, the bottom of the locking plate 43 is sloped. The locking plate 43 is inserted into the square tubes 41. Specifically, multiple locking grooves 412 are provided on the square tubes 41, and the locking plate 43 is inserted into each locking groove 412. A horizontal groove 421 is provided on the extension rods 42, and an abutment groove 431 is provided on the locking plate 43. Specifically, the abutment groove 431 is... The device is inclined, and the end of the abutment groove 431 near the abutment rod 46 is higher than the end away from the abutment rod 46; an adjusting rod 44 is fixedly connected to the extension rod 42; specifically, a slot 411 for the adjusting rod 44 to slide is provided on the square tube 41; a pressing rod 45 is slidably connected inside the adjusting rod 44, and an abutment rod 46 is fixedly connected to the pressing rod 45, the end of the abutment rod 46 simultaneously slides against the transverse groove 421 and the abutment groove 431; specifically, the abutment rod 46 is L-shaped; a first elastic element 47 is provided between the pressing rod 45 and the adjusting rod 44; wherein, the first elastic element 47 is a compression spring.

[0029] It is understandable that in this embodiment, extension rods 42 are slidably connected inside both square tubes 41. However, structures such as locking plate 43, adjusting rod 44, pressing rod 45, etc., only need to be provided on one side of the bottom of the cushion 1. In another embodiment, they can also be provided on both sides of the bottom of the cushion 1.

[0030] Preferably, it further includes an adjustment mechanism 5, which is used to adjust the angle of the leg support 48 and lock the leg support 48; it includes a rotating shaft 51 fixedly connected to the leg support 48, an adjustment disc 52 fixedly connected to the extension rod 42, a fixing rod 53 fixedly connected to the leg support 48, a sliding sleeve 54 slidably connected to the fixing rod 53, and a second elastic element 55 provided between the sliding sleeve 54 and the fixing rod 53; the second elastic element 55 is a compression spring; the end of the sliding sleeve 54 is inserted into the adjustment disc 52; specifically, the adjustment disc 52 has a plurality of insertion holes 521, and the end of the sliding sleeve 54 is inserted into each insertion hole 521; a handle 56 is fixedly connected to the sliding sleeve 54.

[0031] Working principle: When the extension distance of the leg support 48 needs to be increased, simply push the adjustment rod 44 by hand. Due to the inclined surface at the bottom of the locking plate 43, there is no locking relationship between the locking plate 43 and the locking groove 412. This allows the extension rod 42 to slide inside the square tube 41 and move the leg support 48 to the outside of the seat cushion 1.

[0032] When it is necessary to adjust the extension distance of the leg support 48, hold the adjusting rod 44 and press the pressing rod 45. The pressing rod 45 drives the abutment rod 46 to move synchronously, so that the first elastic element 47 undergoes elastic deformation and contracts. During the movement of the abutment rod 46, it slides in the transverse groove 421. Furthermore, the abutment rod 46 drives the locking plate 43 to move vertically through the abutment engagement with the abutment groove 431, so that the end of the locking plate 43 moves out of the locking groove 412, thereby releasing the restriction on the extension rod 42. At this time, move the adjusting rod 44 to make the extension rod 42 slide in the reverse direction in the square tube 41. When it moves to the appropriate position, release the pressing rod 45. Under the elastic force of the first elastic element 47, the locking plate 43 is inserted into the locking groove 412, locking the position of the extension rod 42.

[0033] When adjusting the rotation angle of the leg support 48, the sliding sleeve 54 slides on the fixed rod 53 by moving the handle 56, causing the second elastic element 55 to elastically deform and contract, thereby pulling the end of the sliding sleeve 54 out of the insertion hole 521. At this time, the leg support 48 is rotated with the axis of the rotating shaft 51 as the center. After rotating to a suitable angle, the handle 56 is released, allowing the end of the sliding sleeve 54 to be inserted into one of the insertion holes 521, thus locking the rotation angle of the leg support 48.

[0034] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A portable office chair, characterized in that, include: Seat cushion (1); The backrest (2) is fixedly connected to the seat cushion (1); The support leg (3) is located below the seat cushion (1); The telescopic mechanism (4) includes two square tubes (41) fixedly connected to the bottom of the seat cushion (1). An extension rod (42) is slidably connected inside each of the two square tubes (41). A leg support (48) is rotatably connected between the two extension rods (42). A locking plate (43) is vertically slidably connected to one of the extension rods (42). The locking plate (43) is inserted into the square tube (41). A horizontal groove (421) is provided on the extension rod (42). An abutment groove (431) is provided on the locking plate (43). An adjusting rod (44) is fixedly connected to the extension rod (42). A pressing rod (45) is slidably connected inside the adjusting rod (44). An abutment rod (46) is fixedly connected to the pressing rod (45). The end of the abutment rod (46) slides against the horizontal groove (421) and the abutment groove (431). A first elastic element (47) is provided between the pressing rod (45) and the adjusting rod (44).

2. A portable office chair according to claim 1, characterized in that, It also includes an adjustment mechanism (5), which includes a rotating shaft (51) fixedly connected to the leg support (48), an adjustment plate (52) fixedly connected to the extension rod (42), a fixed rod (53) fixedly connected to the leg support (48), a sliding sleeve (54) slidably connected to the fixed rod (53), a second elastic element (55) provided between the sliding sleeve (54) and the fixed rod (53), the end of the sliding sleeve (54) being inserted into the adjustment plate (52), and a handle (56) fixedly connected to the sliding sleeve (54).

3. A portable office chair according to claim 2, characterized in that, The adjustment plate (52) has multiple insertion holes (521), and the end of the sliding sleeve (54) is inserted into each insertion hole (521).

4. A portable office chair according to claim 1, characterized in that, The square tube (41) has a slot (411) for the adjustment rod (44) to slide.

5. A portable office chair according to claim 1, characterized in that, The square tube (41) has multiple locking grooves (412), and the locking plate (43) is inserted into each locking groove (412).

6. A portable office chair according to claim 1, characterized in that, The bottom of the locking plate (43) is sloped.

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