Office Leisure Chair

Abstract

The present invention discloses an office leisure chair, comprising a chair leg, a chair seat and a chair back arranged above the chair leg; a footrest adjustment mechanism is arranged on the chair seat, and a foot pad body is arranged at the front end of the footrest adjustment mechanism; the footrest adjustment mechanism comprises at least two telescopic rods fixed in the chair seat, the front end of the telescopic rods extends into the foot pad body and is fixedly connected with the foot pad body, and the telescopic rods are telescopic and drive the foot pad body to expand or store; a storage space is also arranged at the front end of the chair seat, and when the foot pad body is in the storage state, the foot pad body is folded in the storage space. The footrest adjustment mechanism of the foot pad body has a simple structure and is easy and quick to assemble; at the same time, a waist support is arranged on the chair back, which greatly improves the comfort of the human body.

Description

Technical Field

[0001] The present invention relates to the field of chairs, and more particularly to office leisure chairs. Background Art

[0002] Modern people's demand for office chairs is not limited to sitting comfortably and healthily, but also hope that office chairs can be used as places to rest and take a nap during work. Therefore, many products combining office chairs and leisure chairs have appeared on the market. However, these office leisure chairs often only have the backrests that can be flipped back to relax people's waist and back, but ignore the legs and feet of people, so they cannot really relax the whole body.

[0003] Based on the above reasons, the prior art, such as the Chinese utility model patent with the announcement number "CN203000027U", discloses a chair back linkage office leisure chair, which includes a seat cushion, a bracket installed at the bottom of the seat cushion, an armrest and a chair leg with rollers, a lifting device is installed on the bracket, the chair leg is installed at the bottom of the bracket, the armrest is fixed on both sides of the seat cushion, and also includes a chair back, a linkage device and a foot pad, the chair back is connected to the seat cushion through a chair back tilt mechanism, the linkage device includes a chair back support frame, a first linkage rod and a second linkage rod, the chair back support frame, the first linkage rod and the second linkage rod are hinged in sequence, and the foot pad is installed at the end of the second linkage rod. The beneficial effect of its scheme is: the state of the office leisure chair is changed according to the different postures of the human body, and the comfort of human body relaxation and work is maximized by retracting the foot pad and the chair back, and the operation is simple. Although the above-mentioned existing office leisure chair provides a foot pad for resting feet when lying down, this type of office leisure chair has some shortcomings:

[0004] 1. The foot pad is either linked to the chair back or can only be positioned when the foot pad is fully retracted or fully extended; thus, this type of foot pad is not suitable for people of different heights or leg lengths. If the above-mentioned inappropriate users can only keep the foot pad in an active state but cannot position it, the instability will prevent the user from fully relaxing and affect their rest;

[0005] 2. The foot pad is exposed to the outside when stored, which affects the appearance and usability.

[0006] The Chinese patent with the authorization announcement number CN208725230U discloses a sliding mechanism for opening the foot pad. The foot pad on the chair can be hidden in the seat when stored. However, the structure of the sliding mechanism of the foot pad is relatively complex and the assembly is cumbersome. Summary of the invention

[0007] In view of the shortcomings of the prior art, the present invention provides an office leisure chair, wherein the footrest adjustment mechanism of the footrest body has a simple structure, is easy and quick to assemble, and is in a non-linked relationship with the chair back.

[0008] To achieve the above purpose, the present invention provides the following technical solution: an office leisure chair, comprising a chair leg, a seat and a chair back arranged above the chair leg; a footrest adjustment mechanism is arranged on the seat, and a foot pad body is arranged at the front end of the footrest adjustment mechanism; the footrest adjustment mechanism comprises at least two telescopic rods fixed in the seat, the front ends of the telescopic rods extend into the foot pad body and are fixedly connected to the foot pad body, and the telescopic rods extend and retract to drive the foot pad body to expand or retract. The footrest adjustment mechanism of the foot pad body has a simple structure and is easy and quick to assemble.

[0009] Preferably, a lumbar support is provided below the chair back and the lumbar support protrudes forward relative to the chair back. When the back of a person leans against the lumbar support, the lumbar support protrudes out of the chair back, so as to be closer to the waist of the person, provide a support force for the waist of the person, and greatly improve the comfort of the waist.

[0010] Preferably, at least two first limiting grooves for accommodating the telescopic rod are arranged in the seat along the front-to-back direction, and the telescopic rod is embedded in the first limiting groove and fixedly connected to the first limiting groove.

[0011] Preferably, at least one pressing block is fixed in the seat, and a plurality of limiting tubes that can be embedded in the first limiting groove are formed on the pressing block and extend downward corresponding to the position of the telescopic rod. The telescopic rod is inserted into the limiting tube of the pressing block and fixed in the limiting tube by a fastener. When in use, when the user puts his feet on the foot pad body, the telescopic rod will use the front end of the seat as a fulcrum to generate a downward force and act on the front end of the seat, while the rear end of the telescopic rod will tend to tilt upward and act on the seat plate. The setting of the pressing block can limit the telescopic rod radially to avoid damage to the seat plate and the seat due to the force.

[0012] Preferably, a positioning protrusion is extended outwardly on the outer wall of the telescopic rod, and a first positioning hole is opened on the position of the positioning protrusion corresponding to the position of the positioning protrusion on the position limiting tube; the telescopic rod is inserted into the position limiting tube, and the positioning protrusion on the telescopic rod is embedded in the first positioning hole on the position limiting tube, so that the telescopic rod is preassembled in the position limiting tube. When assembling the telescopic rod and the position limiting tube, the positioning protrusion and the first positioning hole cooperate to preassemble the telescopic rod in the position limiting tube, so that the telescopic rod and the position limiting tube are conveniently fixedly connected by fasteners, and the assembly is convenient and quick.

[0013] Preferably, one end of the telescopic rod fixedly connected to the foot pad body is the movable end of the telescopic rod, and at least two second limiting grooves for accommodating the movable end of the telescopic rod are arranged in the footrest body along the front-to-back direction, and the movable end of the telescopic rod is embedded in the second limiting groove and fixedly connected to the second limiting groove. Compared with the prior art, the movable end of the telescopic rod is hidden in the foot pad body, making the chair more beautiful as a whole.

[0014] Preferably, a positioning column is fixed or integrally formed in the second limiting groove, a second positioning hole is opened at the movable end of the telescopic rod corresponding to the position of the positioning column, and the positioning column in the second limiting groove is inserted into the positioning hole on the movable end of the telescopic rod, thereby axially limiting the movable end of the telescopic rod within the foot pad body.

[0015] Preferably, a plurality of first limiting plate portions are fixed or integrally formed at intervals along the front-back direction in the foot pad body, a first positioning groove for accommodating the movable end of the telescopic rod is provided in the center of the first limiting plate portion, and the positioning column is fixed or integrally formed in the first positioning groove; the movable end of the telescopic rod is embedded in the first positioning groove, and at the same time, the positioning column in the first positioning groove is inserted into the second positioning hole of the movable end of the telescopic rod, thereby axially limiting the movable end of the telescopic rod in the foot pad body; a positioning block is also provided above the first limiting plate portion, and the center of the positioning block is recessed upward to form a second limiting plate portion; the upper part of the movable end of the telescopic rod is embedded in the second positioning groove formed by the second limiting plate portion, and the lower part of the movable end of the telescopic rod is embedded in the first positioning groove of the first limiting plate portion, thereby axially and radially limiting the movable end of the telescopic rod in the foot pad body. Compared with the prior art, the assembly of the movable end of the telescopic rod and the foot pad body is simpler.

[0016] Preferably, a accommodating space is further provided at the front end of the seat, and when the foot pad body is in the storage state, the foot pad body is folded in the accommodating space; or, the plurality of telescopic rods are parallel to each other and spaced apart along the left-right direction of the seat.

[0017] Preferably, the telescopic rod is a three-stage telescopic rod. The three-stage telescopic rod comprises a first sleeve fixed in the seat, a second sleeve inserted in the first sleeve, and an inner rod inserted in the second sleeve, and one end of the inner rod close to the foot pad body is fixedly connected to the foot pad body. The three-stage telescopic rod has a large telescopic range and can adapt to users of different heights.

[0018] In summary, the present invention has the following beneficial effects:

[0019] 1. The footrest adjustment mechanism of the footrest body has a simple structure and is easy and quick to assemble;

[0020] 2. The chair back is equipped with a lumbar support, which greatly improves the comfort of the human body;

[0021] 3. The footrest mechanism is non-linked with the chair back, which can meet the different posture requirements of customers, thereby satisfying the comfort of human relaxation and work. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the foot pad body of the present invention in a storage state.

[0023] Figure 2 It is a structural schematic diagram of the foot pad body of the present invention in an unfolded state;

[0024] Figure 3 It is a structural schematic diagram of the assembly of the chair seat and the foot pad body of the present invention;

[0025] Figure 4 It is a structural schematic diagram of the assembly of the seat and the foot pad body when the foot pad body of the present invention is in an unfolded state;

[0026] Figure 5 It is a structural schematic diagram of the chair seat of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the assembly of the telescopic rod and the chair seat of the present invention;

[0028] Figure 7 It is a schematic diagram of the structure of the compact of the present invention;

[0029] Figure 8 It is a structural schematic diagram of the first sleeve of the present invention;

[0030] Fig. 9 It is a structural schematic diagram of the foot pad body of the present invention;

[0031] Fig.10 It is a structural schematic diagram of the assembly of the foot pad body and the telescopic rod of the present invention.

[0032] Figure numerals: 1. seat; 2. foot pad body; 21. chair leg; 22. chair back; 23. lumbar support; 3. tilt chassis; 4. telescopic rod; 5. first limiting groove; 6. second limiting groove; 7. pressure block; 8. limiting tube; 9. positioning protrusion; 10. first positioning hole; 11. first limiting plate portion; 12. first positioning groove; 13. positioning column; 14. positioning block; 15. second limiting plate portion; 16. first sleeve; 17. second sleeve; 18. inner rod. DETAILED DESCRIPTION

[0033] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more, unless otherwise clearly specified.

[0036] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0038] This embodiment discloses an office leisure chair, such as Figures 1-2As shown, it includes a chair leg 21 and a chair seat 1 and a chair back 22 arranged above the chair leg 21; Figures 3 to 6 As shown, a footrest adjustment mechanism is provided on the seat 1, and a foot pad body 2 is provided at the front end of the footrest adjustment mechanism; the footrest adjustment mechanism includes a fixed end and a movable end, the fixed end of the footrest adjustment mechanism is fixed on the seat 1, and the movable end of the footrest adjustment mechanism is connected to the foot pad body 2, wherein the movable end of the footrest adjustment mechanism is the front end of the footrest adjustment mechanism described above, and the movable end of the footrest adjustment mechanism moves and drives the foot pad body 2 to be unfolded or retracted; specifically, the footrest adjustment mechanism includes at least two telescopic rods 4 fixed in the seat 1, and the multiple telescopic rods 4 are parallel to each other and are spaced apart along the left and right direction of the seat 1; the front end of the telescopic rod 4 extends into the foot pad body 2 and is fixedly connected to the foot pad body 2, and specifically, at least two first limiting recesses for accommodating the telescopic rods 4 are provided in the seat 1 along the front-to-back direction. The telescopic rod 4 is embedded in the first limiting groove 5 and fixedly connected to the first limiting groove 5; the other end of the telescopic rod 4 extends into the foot pad body 2 and is fixedly connected to the foot pad body 2. Specifically, one end of the telescopic rod 4 fixedly connected to the foot pad body 2 is the moving end of the telescopic rod 4. At least two second limiting grooves 6 for accommodating the moving end of the telescopic rod 4 are arranged in the footrest body along the front-to-back direction. The moving end of the telescopic rod 4 is embedded in the second limiting groove 6 and fixedly connected to the second limiting groove 6. Compared with the prior art, the moving end of the telescopic rod 4 is hidden in the foot pad body 2, making the chair more beautiful as a whole; the telescopic rod 4 is telescopic and drives the foot pad body 2 to expand or retract; the front end of the seat 1 is also provided with a accommodating space, and when the foot pad body 2 is in the retracted state, the foot pad body 2 is folded in the accommodating space. The footrest adjustment mechanism of the foot pad body 2 has a simple structure and is easy and quick to assemble. In addition, a lumbar support 23 is provided below the chair back 22, the upper end of the lumbar support 23 is hinged to the chair back 22, and the lumbar support 23 protrudes forward relative to the chair back 22. Specifically, the lumbar support 23 is installed on the upper part of the chair back 22 through a folding device, and the folding device includes a fixed seat and a connecting arm; the fixed seat is hinged to the connecting arm, and at least two connecting arms are fixed and moved synchronously through a rigid connecting block; the fixed seat is fixed to the chair back 22, and the rigid connecting block is fixed to the lumbar support 23. When the back of a human body is supported by the lumbar support 23, the lumbar support 23 protrudes from the chair back 22, so as to be closer to the waist of the human body, provide a support force for the waist of the human body, and greatly improve the comfort of the waist.

[0039] There is no particular restriction on the fixing method of the telescopic rod 4 and the seat 1, as long as the telescopic rod 4 can be axially and radially limited in the seat 1, see Figure 6 , Figure 7 and Figure 8As shown, as a preferred embodiment, at least one pressing block 7 is fixed in the seat 1, and the pressing block 7 extends downward corresponding to the position of the telescopic rod 4 to form a plurality of limiting tubes 8 that can be embedded in the first limiting groove 5, and the telescopic rod 4 is inserted into the limiting tube 8 of the pressing block 7 and fixed in the limiting tube 8 by fasteners. When in use, when the user puts his feet on the foot pad body 2, the telescopic rod 4 will use the front end of the seat 1 as a fulcrum to generate a downward force and act on the front end of the seat 1, while the rear end of the telescopic rod 4 will tend to tilt upward and act on the seat board. The setting of the pressing block 7 can limit the telescopic rod 4 radially to avoid damage to the seat board and the seat 1 due to the force. A positioning protrusion 9 is formed on the outer side wall of the telescopic rod 4 and extends outward. A first positioning hole 10 is opened on the limiting tube 8 at a position corresponding to the positioning protrusion 9. The telescopic rod 4 is inserted into the limiting tube 8, and the positioning protrusion 9 on the telescopic rod 4 is embedded in the first positioning hole 10 on the limiting tube 8, so that the telescopic rod 4 is preassembled in the limiting tube 8. When assembling the telescopic rod 4 and the limiting tube 8, the positioning protrusion 9 and the first positioning hole 10 cooperate to preassemble the telescopic rod 4 in the limiting tube 8, so that the telescopic rod 4 and the limiting tube 8 are fixedly connected by fasteners, and the assembly is convenient and quick.

[0040] like Fig. 9 and Fig.10 As shown, a plurality of first limiting plate portions 11 are fixed or integrally formed in the second limiting groove 6 of the foot pad body 2 at intervals along the front-to-back direction, a first positioning groove 12 for accommodating the movable end of the telescopic rod 4 is provided in the center of the first limiting plate portion 11, a positioning column 13 is fixed or integrally formed in the first positioning groove 12, and a second positioning hole is provided at the movable end of the telescopic rod 4 corresponding to the position of the positioning column 13; the movable end of the telescopic rod 4 is embedded in the first positioning groove 12, and at the same time, the positioning column 13 in the first positioning groove 12 is inserted into the second positioning hole of the movable end of the telescopic rod 4, thereby axially limiting the movable end of the telescopic rod 4 in the foot pad body 2; a positioning block 14 is also provided above the first limiting plate portion 11, and the center of the positioning block 14 is recessed upward to form a second limiting plate portion 15; the upper part of the movable end of the telescopic rod 4 is embedded in the second positioning groove formed by the second limiting plate portion 15, and the lower part of the movable end of the telescopic rod 4 is embedded in the first positioning groove 12 of the first limiting plate portion 11, thereby axially and radially limiting the movable end of the telescopic rod 4 in the foot pad body 2. Compared with the prior art, the assembly of the movable end of the telescopic rod 4 and the foot pad body 2 is simpler.

[0041] like Figure 4 and Fig.10As shown, the telescopic rod 4 is a three-stage telescopic rod 4, which includes a first sleeve 16 fixed in the seat 1, a second sleeve 17 inserted in the first sleeve 16, and an inner rod 18 inserted in the second sleeve 17, and one end of the inner rod 18 close to the foot pad body 2 is fixedly connected to the foot pad body 2. The front end of the first sleeve 16 is provided with a first limit position for limiting the second sleeve 17 from disengaging from the first sleeve 16 when sliding, and the first limit position includes a first elastic protrusion installed on the side wall of the rear end of the second sleeve 17, and a third positioning hole is opened at the front end of the first sleeve 16 corresponding to the position of the first elastic protrusion. When the second sleeve 17 extends forward, the first elastic protrusion on the second sleeve 17 is embedded in the third positioning hole on the first sleeve 16, thereby fixing the first sleeve 16 and the second sleeve 17 relatively; the second sleeve 17 A second limit position is provided at the front end for limiting the inner rod 18 from disengaging from the second sleeve 17 when sliding. The second limit position includes a second elastic protrusion installed on the side wall at the rear end of the inner rod 18. A fourth positioning hole is opened at the front end of the second sleeve 17 corresponding to the position of the second elastic protrusion. When the inner rod 18 is extended forward, the second elastic protrusion on the inner rod 18 is embedded in the fourth positioning hole of the second sleeve 17, thereby making the inner rod 18 and the second sleeve 17 relatively fixed. The three-stage telescopic rod 4 has a large telescopic range and can adapt to users of different heights.

[0042] The specified directions in this specific embodiment are only for the convenience of describing the positional relationship and the coordination relationship between the components. The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiment. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An office leisure chair, comprising a chair leg (21), a chair seat (1) and a chair back (22) arranged above the chair leg (21); a footrest adjustment mechanism is arranged on the chair seat (1), and a footrest body (2) is arranged at the front end of the footrest adjustment mechanism; Its characteristics are: The footrest adjustment mechanism comprises at least two telescopic rods (4) fixed in the seat (1), the front ends of the telescopic rods (4) extending into the footrest body (2) and fixedly connected to the footrest body (2), the telescopic rods (4) extending and retracting and driving the footrest body (2) to expand or retract; The end of the telescopic rod (4) fixedly connected to the foot pad body (2) is the movable end of the telescopic rod (4); at least two second limiting grooves (6) for accommodating the movable end of the telescopic rod (4) are arranged in the foot pad body along the front-to-back direction; the movable end of the telescopic rod (4) is embedded in the second limiting groove (6) and fixedly connected to the second limiting groove (6); A plurality of first limiting plate portions (11) are fixed or integrally formed in the second limiting groove (6) of the foot pad body (2) at intervals along the front-to-back direction, a first positioning groove (12) for accommodating the movable end of the telescopic rod (4) is provided at the center of the first limiting plate portion (11), a positioning column (13) is fixed or integrally formed in the first positioning groove (12), and a second positioning hole is provided at the movable end of the telescopic rod (4) corresponding to the position of the positioning column (13); the movable end of the telescopic rod (4) is embedded in the first positioning groove (12), and at the same time, the positioning column (13) in the first positioning groove (12) is inserted into the telescopic rod ( The telescopic rod (4) is inserted into the second positioning hole of the movable end of the telescopic rod (4), thereby axially limiting the movable end of the telescopic rod (4) in the foot pad body (2); a positioning block (14) is also provided above the first limiting plate portion (11), and the center of the positioning block (14) is recessed upward to form a second limiting plate portion (15); the upper part of the movable end of the telescopic rod (4) is embedded in the second positioning groove formed by the second limiting plate portion (15), and the lower part of the movable end of the telescopic rod (4) is embedded in the first positioning groove (12) of the first limiting plate portion (11), thereby axially and radially limiting the movable end of the telescopic rod (4) in the foot pad body (2).

2. The office leisure chair according to claim 1, Its characteristics are: A lumbar support (23) is provided below the chair back (22), and the lumbar support (23) protrudes forward relative to the chair back (22).

3. The office leisure chair according to claim 1, Its characteristics are: At least two first limiting grooves (5) for accommodating telescopic rods (4) are arranged in the chair seat (1) along the front-to-back direction, and the telescopic rod (4) is embedded in the first limiting groove (5) and fixedly connected to the first limiting groove (5).

4. The office leisure chair according to claim 3, Its characteristics are: At least one pressing block (7) is also fixed in the seat (1); the pressing block (7) extends downwardly corresponding to the position of the telescopic rod (4) to form a plurality of limiting tubes (8) capable of being embedded in the first limiting groove (5); the telescopic rod (4) is inserted into the limiting tube (8) of the pressing block (7) and the telescopic rod (4) is fixed in the limiting tube (8) by fasteners.

5. The office leisure chair according to claim 4, Its characteristics are: A positioning protrusion (9) is formed on the outer wall of the telescopic rod (4) extending outward, and a first positioning hole (10) is opened on the position limiting tube (8) corresponding to the position of the positioning protrusion (9); the telescopic rod (4) is inserted into the position limiting tube (8), and the positioning protrusion (9) on the telescopic rod (4) is embedded in the first positioning hole (10) on the position limiting tube (8), thereby pre-assembling the telescopic rod (4) in the position limiting tube (8).

6. The office leisure chair according to claim 1, Its characteristics are: The front end of the seat (1) is also provided with a storage space, and when the foot pad body (2) is in the storage state, the foot pad body (2) is folded into the storage space; or, the plurality of telescopic rods (4) are parallel to each other and are spaced apart in the left-right direction of the seat (1).

7. The office leisure chair according to claim 1, Its characteristics are: The telescopic rod (4) is a three-stage telescopic rod (4); the three-stage telescopic rod (4) comprises a first sleeve (16) fixed in the seat (1), a second sleeve (17) inserted in the first sleeve (16), and an inner rod (18) inserted in the second sleeve (17); an end of the inner rod (18) close to the foot pad body (2) is fixedly connected to the foot pad body (2).

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