Office chair with leg support

Abstract

The utility model provides an office chair with a leg support, which comprises a seat plate, the lower end of the seat plate is mounted on a slidable base through a first air pressure rod, one side of the seat plate is provided with a backrest plate with an adjustable angle, and armrests are mounted on two sides of the seat plate; the leg supporting piece is installed on the side, away from the backrest plate, of the seat plate, and the leg supporting piece comprises a first supporting plate rotationally installed on the seat plate and a second air pressure rod supporting the first supporting plate; according to the device, the first supporting plate is supported through the second air pressure rod, an air pressure release button of the second air pressure rod is pressed through the second shifting rod, so that the first supporting plate can rotate in an adjustable mode, and when the second shifting rod is loosened, the first supporting plate can be supported and fixed through the second air pressure rod. The second air pressure rod can push the first supporting plate to be parallel to the seat plate so as to support the legs of a person.

Description

Technical Field

[0001] The utility model relates to the technical field of office chairs, in particular to an office chair with a leg rest. Background Technique

[0002] As a tool for people to sit on in the office, after a long period of work, in order to relax and relieve fatigue, people need to lie down to rest or take a lunch break. Due to space limitations in the office, people generally rest on office chairs; after people lie down to rest on the existing office chairs, due to the lack of support for the legs, the comfort of people is poor, reducing the effect of people resting to relax and relieve stress. Content of the Utility Model

[0003] The technical problem solved by the utility model is to provide an office chair with a leg rest, which improves the comfort of the body when people rest and work, so as to solve the problems put forward in the above background technique.

[0004] The technical problem solved by the utility model is realized by adopting the following technical solutions:

[0005] An office chair with a leg rest, comprising:

[0006] A seat board, the lower end of the seat board is installed on a slidable base through a first pneumatic rod, one side of the seat board is provided with an adjustable backrest board, and armrests are installed on both sides of the seat board;

[0007] A leg rest member, which is installed on the side of the seat board away from the backrest board. The leg rest member includes a first support plate rotatably installed on the seat board and a second pneumatic rod supporting the first support plate. A second support plate is adjustably installed on the first support plate; one end of the second pneumatic rod is rotatably connected to the first support plate, and the other end is installed on an adjustment seat and rotatably connected to the seat board through the adjustment seat. A second lever is installed on one side of the adjustment seat to adjust the position and angle of the first support plate through the second pneumatic rod.

[0008] As a further scheme of the utility model:

[0009] The second pneumatic rod includes a cylinder and a coupling movably installed on the cylinder. A pneumatic release button is installed at the outer end of the coupling; a cylinder plate is installed on the outside of the cylinder, and the cylinder plate is rotatably installed on a first support seat corresponding to the first support plate. The coupling is fixedly installed on the adjustment seat, and the pneumatic release button outside the coupling is built in the inner cavity of the adjustment seat to cooperate with the second lever.

[0010] As a further scheme of the utility model:

[0011] A rotating plate is provided on one side of the adjustment seat, and is rotatably connected to the second support at the lower end of the seat plate through the rotating plate. An opening communicating with the inner cavity is provided on one side of the adjustment seat, and the second lever is inserted into the inner cavity of the adjustment seat. An adjusting shaft is fixedly provided in the adjustment seat corresponding to the second lever, and the second lever is rotatably installed on the adjusting shaft so that the air pressure release button can be pressed by rotating the second lever. A limit block is provided on the side of the adjustment seat located on the second lever away from the air pressure release button.

[0012] As a further solution of the utility model:

[0013] The second lever comprises an integrally arranged pressing plate, a rotating sleeve and a shifting plate, wherein the rotating sleeve is arranged on the adjusting shaft, the pressing plate is used to press the air pressure release button, and the shifting plate extends out of the adjusting seat for human activation.

[0014] As a further solution of the utility model:

[0015] The first support comprises two groups of first support plates arranged in parallel, a first support shaft is fixed between the first support plates, and the cylinder plate is rotatably mounted on the first support shaft; the second support comprises second support plates arranged in parallel, a second support shaft is fixed between the second support plates, and the rotating plate is rotatably mounted on the second support shaft.

[0016] As a further solution of the utility model:

[0017] A support sleeve is provided on one side of the first support plate, an arc-shaped groove is provided on the seat plate corresponding to the support sleeve, and a rotating shaft is provided in the seat plate located in the arc-shaped groove, and the support sleeve is rotatably installed on the rotating shaft to rotatably connect the first support plate to the seat plate.

[0018] As a further solution of the utility model:

[0019] A slide groove is provided in the first support plate, and slide rails are installed in parallel in the slide groove. The second support plate is slidably installed on the slide rail through a slider. A positioning plate is provided at the outer end of the slide rail to limit the slider to prevent the slider from leaving the slide rail. A folding plate is provided at the outer end of the second support plate, and an arc-shaped portion is provided at the outer end of the folding plate.

[0020] As a further solution of the utility model:

[0021] A pushing groove is provided on one side of the first support plate, and a pushing rod is fixedly provided on the side of the second support plate facing the pushing groove. The pushing rod passes through the pushing groove and is connected to the rotating handle so as to push the telescopic adjustment of the second support plate through the rotating handle. The outer end of the pushing rod is a threaded structure, and the rotating handle is provided with an internal threaded groove. The pushing rod is threadedly connected to the rotating handle, and the rotating handle is tightened with the pushing rod thread to press against the outer side of the first support plate, thereby fixing the second support plate.

[0022] As a further solution of the utility model:

[0023] A first lever connected to the first pneumatic rod is provided at the lower end of the seat plate, pulleys are distributed around the lower end of the base, and the backrest plate is rotatably connected to the seat plate through a rotating seat.

[0024] Compared with the prior art, the beneficial effects of the present utility model are as follows: The device supports the first supporting plate through the second pneumatic rod. By pressing the air pressure release button of the second pneumatic rod with the second lever, the first supporting plate can be adjusted and rotated. When the second lever is released, the first supporting plate can be supported and fixed by the second pneumatic rod. The second pneumatic rod can push the first supporting plate to be parallel to the seat plate to support the legs of the person.

[0025] The second supporting plate is adjustably installed on the first supporting plate to increase the length of the leg rest, so that the leg rest can more comprehensively support the legs and improve the comfort of the person. The person loosens the rotating handle and moves the rotating handle along the pushing groove to drive the telescopic adjustment of the second supporting plate, and then tightens the rotating handle to fix the second supporting plate. The person can push the second pneumatic rod to make the pressing plate press the air pressure release button of the second pneumatic rod, and then use the leg to push the first supporting plate to rotate so that the first supporting plate is placed at the lower end of the seat plate. The device is simple to operate and convenient to use. Description of the Drawings

[0026] Figure 1 is a schematic three-dimensional structure of the present utility model Figure 1 ;

[0027] Figure 2 is a schematic three-dimensional structure of the present utility model Figure 2 ;

[0028] Figure 3 is a schematic partial cross-sectional structure diagram of the present utility model;

[0029] Figure 4 is Figure 2 an enlarged structure diagram at A in

[0030] Reference numerals in the drawings: 1, seat plate; 2, first supporting plate; 3, second supporting plate; 4, second pneumatic rod; 5, adjusting seat; 6, second lever; 11, first pneumatic rod; 12, base; 13, backrest plate; 14, armrest; 15, first lever; 16, pulley; 21, support sleeve; 22, rotating shaft; 23, sliding groove; 24, sliding rail; 25, positioning plate; 26, pushing groove; 31, folding plate; 32, rotating handle; 41, cylinder; 42, coupling; 43, air pressure release button; 44, cylinder plate; 45, first support; 51, rotating plate; 52, second support; 53, adjusting shaft; 54, limiting block; 61, pressing plate; 62, rotating sleeve; 63, dial plate. Detailed Embodiment

[0031] In order to make the implementation means, creative features, achieved objectives and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific illustrations.

[0032] As Figures 1 to 4 shown,

[0033] This embodiment provides an office chair with a leg rest, including:

[0034] A seat board 1, the lower end of the seat board 1 is installed on a slidable base 12 through a first pneumatic rod 11, one side of the seat board 1 is provided with a backrest board 13 with an adjustable angle, and armrests 14 are installed on both sides of the seat board 1;

[0035] A leg rest member, which is installed on the side of the seat board 1 away from the backrest board 13. The leg rest member includes a first support plate 2 rotatably installed on the seat board 1 and a second pneumatic rod 4 supporting the first support plate 2. A second support plate 3 is adjustably installed on the first support plate 2; one end of the second pneumatic rod 4 is rotatably connected to the first support plate 2, and the other end is installed on an adjustment seat 5 and is rotatably connected to the seat board 1 through the adjustment seat 5. A second lever 6 is installed on one side of the adjustment seat 5 to adjust the position and angle of the first support plate 2 through the second pneumatic rod 4.

[0036] In this embodiment, the second pneumatic rod 4 includes a cylinder 41 and a coupling 42 movably installed on the cylinder 41. A pneumatic release button 43 is installed at the outer end of the coupling 42; a cylinder plate 44 is installed on the outside of the cylinder 41, and the cylinder plate 44 is rotatably installed on a first support 45 corresponding to the first support plate 2. The coupling 42 is fixedly installed on the adjustment seat 5, and the pneumatic release button 43 outside the coupling 42 is built in the inner cavity of the adjustment seat 5 to cooperate with the second lever 6.

[0037] A rotating plate 51 is provided on one side of the adjustment seat 5 and is rotatably connected to a second support 52 at the lower end of the seat board 1 through the rotating plate 51. An opening communicating with the inner cavity is provided on one side of the adjustment seat 5. The second lever 6 is inserted into the inner cavity of the adjustment seat 5. An adjustment shaft 53 is fixedly provided in the adjustment seat 5 corresponding to the second lever 6. The second lever 6 is rotatably installed on the adjustment shaft 53 to press the pneumatic release button 43 by rotating the second lever 6. A limiting block 54 is provided on the side of the adjustment seat 5 away from the pneumatic release button 43 of the second lever 6 to prevent the second lever 6 from shaking outwards to limit the second lever 6.

[0038] The second lever 6 includes a pressing plate 61, a rotating sleeve 62 and a dial plate 63 integrally provided. The rotating sleeve 62 is sleeved on the adjustment shaft 53. The pressing plate 61 is used to press the pneumatic release button 43, and the dial plate 63 extends out of the adjustment seat 5 for personnel to dial.

[0039] The first support 45 includes two groups of first support plates arranged in parallel, a first support shaft is fixed between the first support plates, and the cylinder plate 44 is rotatably mounted on the first support shaft; the second support 52 includes two groups of second support plates arranged in parallel, a second support shaft is fixed between the second support plates, and the rotating plate 51 is rotatably mounted on the second support shaft.

[0040] In this embodiment, a support sleeve 21 is provided on one side of the first support plate 2, and an arc-shaped groove is provided on the seat plate 1 corresponding to the support sleeve 21, and a rotating shaft 22 is provided on the seat plate 1 in the arc-shaped groove, and the support sleeve 21 is rotatably installed on the rotating shaft 22 to enable the first support plate 2 to be rotatably connected to the seat plate 1.

[0041] A slide groove 23 is provided in the first support plate 2, and slide rails 24 are installed in parallel in the slide groove 23. The second support plate 3 is slidably installed on the slide rail 24 through a slider. A positioning plate 25 is provided at the outer end of the slide rail 24 to limit the slider to prevent the slider from detaching from the slide rail 24. A folding plate 31 is provided at the outer end of the second support plate 3, and an arc-shaped portion is provided at the outer end of the folding plate 31 to fit the legs of a person.

[0042] A pushing groove 26 is provided on one side of the first support plate 2, and a pushing rod is fixedly provided on the side of the second support plate 3 facing the pushing groove 26. The pushing rod passes through the pushing groove 26 and is connected to the rotary handle 32 so as to push the telescopic adjustment of the second support plate 3 through the rotary handle 32. The outer end of the pushing rod is a threaded structure, and the rotary handle 32 is provided with an internal thread groove. The pushing rod is threadedly connected to the rotary handle 32, and the rotary handle 32 is tightened with the pushing rod thread to abut against the outer side of the first support plate 2, thereby fixing the second support plate 3 and preventing the second support plate 3 from sliding freely in the sliding groove 23 of the first support plate 2.

[0043] The lower end of the seat plate 1 is provided with a first lever 15 connected to the first pneumatic rod 11, and pulleys 16 are distributed around the lower end of the base 12. The backrest plate 13 is rotatably connected to the seat plate 1 through a rotating seat. The installation structure of the base 12 and the backrest plate 13 is a conventional technical means.

[0044] The working principle of the utility model is as follows: when a person sits on an office chair to work, he can lift his feet and move the second lever 6, so that the second pneumatic rod 4 pushes the first support plate 2 to move outward, so that the first support plate 2 can be used to support the person's legs, thereby improving the person's sitting comfort.

[0045] When a person lies down to rest, he can push the second lever 6, and the second pneumatic rod 4 can push the first support plate 2 to move outward, and loosen the handle 32, so as to drive the second support plate 3 to slide out of the slide groove 23 of the first support plate 2 through the handle 32, and then lock the handle 32 to increase the length of the leg support, thereby more comprehensively supporting the person's legs and improving comfort.

[0046] The operator loosens the rotating handle 32 and moves the rotating handle 32 along the pushing groove 26 to drive the second supporting plate 3 to adjust telescopically, and then tightens the rotating handle 32 to fix the second supporting plate 3. The operator can toggle the second pneumatic rod 4 to make the pressing plate 61 press the air pressure release button 43 of the second pneumatic rod 4, and then use the leg to push the first supporting plate 2 to rotate so that the first supporting plate 2 is placed at the lower end of the seat plate 1.

[0047] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed for the present utility model is defined by the appended claims and their equivalents. It should be noted that in this text, if there are relational terms such as first and second, they 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 term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

Claims

1. An office chair with a leg rest, characterized in that: include: A seat plate, the lower end of which is mounted on a slidable base through a first gas pressure rod, a backrest plate with an adjustable angle is provided on one side of the seat plate, and armrests are installed on both sides of the seat plate; A leg support is installed on a side of the seat plate away from the backrest plate, and the leg support includes a first support plate rotatably installed on the seat plate, a second pneumatic rod supporting the first support plate, and the second support plate is adjustably installed on the first support plate; one end of the second pneumatic rod is rotatably connected to the first support plate, and the other end is installed on the adjustment seat and is rotatably connected to the seat plate through the adjustment seat, and a second lever is installed on one side of the adjustment seat to adjust the position angle of the first support plate through the second pneumatic rod.

2. An office chair with a leg rest according to claim 1, characterized in that: The second pneumatic rod includes a cylinder and a coupling movably mounted on the cylinder, and a pneumatic release button is installed at the outer end of the coupling; a cylinder plate is installed on the outer side of the cylinder, and the cylinder plate is rotatably mounted on the first support corresponding to the first support plate, the coupling is fixedly mounted on the adjustment seat, and the pneumatic release button outside the coupling is built into the inner cavity of the adjustment seat to cooperate with the second lever.

3. An office chair with a leg rest according to claim 2, characterized in that: A rotating plate is provided on one side of the adjustment seat, and is rotatably connected to the second support at the lower end of the seat plate through the rotating plate. An opening communicating with the inner cavity is provided on one side of the adjustment seat, and the second lever is inserted into the inner cavity of the adjustment seat. An adjusting shaft is fixedly provided in the adjustment seat corresponding to the second lever, and the second lever is rotatably installed on the adjusting shaft so that the air pressure release button can be pressed by rotating the second lever. A limit block is provided on the side of the adjustment seat located on the second lever away from the air pressure release button.

4. An office chair with a leg rest according to claim 3, characterized in that: The second lever comprises an integrally arranged pressing plate, a rotating sleeve and a shifting plate, wherein the rotating sleeve is arranged on the adjusting shaft, the pressing plate is used to press the air pressure release button, and the shifting plate extends out of the adjusting seat for human activation.

5. The office chair with a leg rest according to claim 3, characterized in that: The first support comprises two groups of first support plates arranged in parallel, a first support shaft is fixed between the first support plates, and the cylinder plate is rotatably mounted on the first support shaft; the second support comprises second support plates arranged in parallel, a second support shaft is fixed between the second support plates, and the rotating plate is rotatably mounted on the second support shaft.

6. The office chair with a leg rest according to claim 1, characterized in that: A support sleeve is provided on one side of the first support plate, an arc-shaped groove is provided on the seat plate corresponding to the support sleeve, and a rotating shaft is provided in the seat plate located in the arc-shaped groove, and the support sleeve is rotatably installed on the rotating shaft to rotatably connect the first support plate to the seat plate.

7. An office chair with a leg rest according to claim 6, characterized in that: A slide groove is provided in the first support plate, and slide rails are installed in parallel in the slide groove. The second support plate is slidably installed on the slide rail through a slider. A positioning plate is provided at the outer end of the slide rail to limit the slider to prevent the slider from leaving the slide rail. A folding plate is provided at the outer end of the second support plate, and an arc-shaped portion is provided at the outer end of the folding plate.

8. An office chair with a leg rest according to claim 7, characterized in that: A pushing groove is provided on one side of the first support plate, and a pushing rod is fixedly provided on the side of the second support plate facing the pushing groove. The pushing rod passes through the pushing groove and is connected to the rotary handle so as to push the telescopic adjustment of the second support plate through the rotary handle. The outer end of the pushing rod is a threaded structure, and the rotary handle is provided with an internal thread groove. The pushing rod is threadedly connected to the rotary handle.

9. The office chair with a leg rest according to claim 1, characterized in that: The lower end of the seat plate is provided with a first shifting rod connected with the first gas pressure rod, the lower end of the base is provided with pulleys distributed around, and the backrest plate is rotatably connected with the seat plate through a rotating seat.

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