CN111297104A - office lounge chair - Google Patents

Abstract

The invention relates to the field of chairs, in particular to an office leisure chair. An office leisure chair comprises chair legs, a chair seat and a chair back, wherein the chair seat and the chair back are arranged above the chair legs; the chair seat is connected with a foot pad telescopic mechanism; the foot pad telescopic mechanism comprises a foot pad body which is connected to the chair seat in a sliding manner; the seat comprises an upper support for forming a sitting surface and a bottom plate positioned below the upper support, and a seat cavity is formed between the upper support and the bottom plate; when the foot pad body is in a storage state, at least part of the foot pad body is located in the seat cavity. The invention aims to provide an office leisure chair, wherein when the foot pad body is in a storage state, at least part of the foot pad body is positioned in the seat cavity. Therefore, the foot pad body part is accommodated in the seat cavity and is not easy to be perceived from the outside, and the normal riding requirement is not influenced.

Description

office lounge chair

technical field

The invention relates to the field of chairs, in particular to an office leisure chair.

Background technique

Modern people's demand for office chairs is not only limited to sitting comfortably and healthily, but also hopes that office chairs can be a place to rest between work. Therefore, there are also many products that combine office chairs and leisure chairs on the market. However, these office leisure chairs are often just the back of the chair that can be turned back to relax people's backs, but ignore the parts of people's legs and feet, so they can't really relax the whole body.

Based on the above reasons, the prior art such as the Chinese utility model patent with the publication number "CN203000027U" discloses a back-linked office leisure chair, which includes a seat cushion, a bracket installed at the bottom of the seat cushion, an armrest and a chair foot with rollers, so The lifting device is installed on the bracket, the chair foot is installed at the bottom of the bracket, the armrest is fixed on both sides of the seat cushion, and also includes a seat back, a linkage device and a foot pad. The seat back is connected with the seat cushion through a seat back tilting mechanism, and the linkage device includes a seat back support frame, a first linkage rod and a second linkage rod, the seat back support frame, the 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 effects of the scheme are: changing the state of the office leisure chair according to the different postures of the human body, maximizing the comfort of the human body for relaxation and work through the retractable foot pad and the chair back, and the operation is simple.

However, although the above-mentioned existing office leisure chairs provide foot pads for footrest when lying down, this type of office leisure chairs has the following two deficiencies:

1. The foot pads are exposed on the outside when they are stored, which affects the appearance and use.

2. This type of foot pad is either linked with the back of the chair, or can only be positioned when the foot pad is fully retracted and fully withdrawn; thus, this type of foot pad cannot be used by people of different heights or leg lengths. . For example, when the user who is not fully applicable can only make the foot pad in an active state and cannot be positioned, the unstable feeling cannot make the user relax and affect the rest.

SUMMARY OF THE INVENTION

In order to solve the above problems, the purpose of the present invention is to provide an office leisure chair, when the foot pad body is in a stored state, at least part of it is located in the seat cavity. In this way, the body part of the foot pad is accommodated in the seat cavity, which is difficult to detect from the outside, and will not affect the normal riding demand.

In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme:

An office leisure chair, comprising chair legs, a chair seat and a chair back arranged above the chair legs; a foot pad telescopic mechanism is connected to the chair seat; the foot pad telescopic mechanism includes feet slidably connected to the chair seat a pad body; the seat includes an upper bracket for forming a seating surface, and a bottom plate under the upper bracket, a seat cavity is formed between the upper bracket and the bottom plate; when the foot pad body is in a stowed state, at least part of the inside the seat cavity.

The present invention adopts the above technical solution, which relates to an office leisure chair, which includes a chair leg, a seat and a chair back arranged above the chair leg; the seat is connected with a foot pad telescopic mechanism. Different from the existing structure, the seat includes an upper bracket for forming a seating surface, and a bottom plate below the upper bracket, and a seat cavity is formed between the upper bracket and the bottom plate. When the foot pad body is in the storage state, at least part of the foot pad body is in the seat cavity. In this way, the body part of the foot pad is accommodated in the seat cavity, which is difficult to detect from the outside, and will not affect the normal riding demand.

It should be noted that: the part of the foot pad body is located in the seat cavity, which mainly refers to the foot pad body in a state where the bottom plate does not completely cover the storage state. The upper bracket is bound to completely cover the foot pad body in the storage state, so that the foot pad body in the storage state does not affect the use.

The foot pad telescopic mechanism further includes a bracket rod slidably connected to the seat, and the foot pad body is slidably connected to the outer end of the bracket rod; the bracket rod is in the first sliding path relative to the seat seat, and the foot pad body In the second sliding path relative to the outer end of the support rod; one of the two ends of the sliding path is provided with positioning stations, so that the two parts in the sliding path are relatively fixed at the beginning and the end of the sliding path; the other sliding The path is provided with a plurality of positioning stations between the two ends, so that the two components in the sliding path have a plurality of positioning positions.

In this technical solution, the foot pad telescopic mechanism includes a bracket rod slidably connected to the seat, and a foot pad body slidably connected to the outer end of the bracket rod. That is, in the foot pad telescopic mechanism, on the one hand, the bracket rod can slide relative to the seat, and on the other hand, the foot pad body can slide relative to the outer end of the bracket rod; Compared with the single-stage sliding, the sliding path of the two-stage sliding can be arranged up and down, which reduces the length of the sliding path of each stage, reduces the length of the bracket rod, and facilitates the concealment of the foot pad body.

And as mentioned above, in the first sliding path of the bracket rod relative to the seat, and in the second sliding path of the foot pad body relative to the outer end of the bracket rod; one of the two ends of the sliding path is provided with positioning stations, So that the two parts in the sliding path are relatively fixed at the beginning and the end of the sliding path; another sliding path is provided with multiple positioning stations between the two ends, so that the two parts in the sliding path have multiple positioning positions Location. A further preferred solution is that positioning stations are provided at both ends of the first sliding path of the bracket rod relative to the seat, so that the bracket rod is relatively fixed relative to the seat at the beginning and the end of the first sliding path; A plurality of positioning stations are provided between the two ends of the foot pad body relative to the second sliding path of the outer end of the bracket rod, so that the foot pad body has a plurality of positioning positions relative to the outer end of the bracket rod.

On the basis of the above-mentioned two-stage sliding path, the two ends of a sliding path are provided with positioning stations, so that the two parts are relatively fixed at the beginning and end of the sliding path, corresponding to the difference between the storage state and the unfolding state of the foot pad body. The other sliding path is provided with multiple positioning stations between the two ends, and the positioning requirements of different positions of the foot pad body can be achieved through multiple positioning stations, which is suitable for people with different heights or leg lengths.

Preferably, the seat is provided with a sliding guide member, and the support rod is inserted in the sliding guide member and can slide relative to the sliding guide member; both ends of the support rod can be snap-connected and fixed with the sliding guide member. In this technical solution, it is defined that the bracket rod slides relative to the sliding guide member fixed on the seat, and the two ends of the bracket rod are snap-connected with the sliding guide member to realize the positioning of the two ends of the sliding path. The middle corresponds to the storage state and the unfolded state of the foot pad body.

Preferably, the sliding guide component includes a housing, and a channel for guiding the support rod is provided inside the housing; the housing on the open sides of both ends of the channel is provided with a clamping block or a bayonet, and the inner and outer ends of the support rod are provided with Each part is provided with a bayonet or a catch block which is adapted to it. In this technical solution, the buckle connection and fixation are realized through the cooperation of the clamping block and the bayonet; and the buckle connection between the clamping block and the bayonet is preferably elastic, and does not require forced unlocking and locking, and only needs to be applied Locking and unlocking can be achieved with a force greater than a certain value, so that the user can lock or unlock by pushing or pulling forcefully.

Preferably, a cushion cover is fixedly installed in the channel of the casing, and at least one abutting portion is provided on all end surfaces of the inner wall of the cushion cover; the abutting portion is an arc-shaped bending that is recessed into the channel relative to the cushion cover The most concave area of the abutting part on the end surfaces of all inner walls of the cushion cover abuts against the bracket rod. In this technical solution, a cushion cover is provided on the channel inside the housing for contacting and positioning the support rod, and each end surface of the inner wall of the cushion cover is provided with at least one arc-shaped bending part seat that is recessed toward the inside of the channel relative to the cushion cover. The setting of the abutting part makes the support rod only abut against the most concave area on the abutting part, thus reducing the contact area between the cushion cover and the support rod, and in the embodiment, the cushion cover is preferably selected as a metal cover, then The sliding resistance of the bracket rod relative to the cushion cover is less and the sliding is smoother.

Preferably, the seat cavity of the seat seat is further provided with a first chute, the sliding guide member is embedded on the front end of the first chute in the seat cavity of the seat seat, and the bracket rod is slidably arranged in the first chute and through the sliding guide member. In this technical solution, a seat cavity is provided on the seat, and the sliding guide member is embedded on the front end of the first chute in the seat cavity of the seat. When in use, the bracket rod moves along the first chute relative to the sliding guide member, so that the foot pad body can slide relative to the seat so as to be adjusted between the storage state and the unfolding state. In addition, in the storage state, the body of the foot pad is hidden and stored in the seat cavity of the seat, and only the entire seat can be seen from the outside, but the telescopic mechanism of the foot pad and the foot pad cannot be seen, and the appearance is simple and beautiful.

Preferably, a positioning block is provided on the outer end of the support rod, a second chute is provided on the foot pad body, and the positioning block is embedded in the second chute and can move along the second chute; The second chute is provided with a plurality of positioning stations between two ends, so that the positioning block has a plurality of positioning positions relative to the second chute.

Preferably, racks are provided on both side walls of the second chute; elastic arms are provided on both ends of the positioning block, an elastic deformation space is provided between the elastic arms and the positioning block, and the free ends of the elastic arms are provided with elastic arms. The end is provided with a positioning tooth part matched with the rack. In this technical solution, the foot pad body is provided with racks on both side walls of the second chute, and the racks guide and position the positioning block. Specifically, when the positioning block moves relative to the rack, under the action of the elastic arm on the positioning block, the positioning teeth always adhere to the rack; when the positioning teeth are in contact with the tooth tips on the rack, the elastic arm deforms; When the positioning tooth part is in contact with the tooth slot on the rack, the elastic arm is reset.

Preferably, the side wall of the foot pad body closes both ends of the second chute, and the middle of the second chute is provided with guide ribs arranged along the direction of the chute; the positioning block is composed of two unit blocks In the butt joint structure, the two unit blocks are provided with guide grooves matching with the guide ribs on the abutment surfaces of the two unit blocks. In this technical solution, the side wall of the foot pad body closes the two ends of the second chute, so that the positioning block will not be separated from the second chute when moving along the second chute; Guide to avoid misalignment when the two sides of the positioning block slide with the rack.

Preferably, the lower part of the seat is connected above the chair legs through a tilting chassis, and the lower end of the seat back is movably connected to the rear end of the seat or the rear end of the tilting chassis. In this technical solution, the seat back is connected to the rear end of the seat seat or the rear end of the tilting chassis in a hinged manner; it can be used to adjust the tilting angle of the seat back and cooperate with the foot pad telescopic mechanism.

Description of drawings

Fig. 1 is a schematic diagram of the folded state of the foot pads of the office leisure chair involved in the invention.

FIG. 2 is a schematic diagram of a foot pad in an unfolded state of the office leisure chair involved in the invention.

FIG. 3 is a schematic view of the assembly of the foot pad telescopic mechanism and the seat.

FIG. 4 is a schematic view of the assembly of the sliding guide member and the support rod.

FIG. 5 is a schematic view of the assembly of the support rod and the foot pad body.

FIG. 6 is a schematic diagram of setting a positioning block at the outer end of the support rod.

Detailed ways

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " The orientation or positional relationship indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise", etc. The orientation or positional relationship shown in the figures is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a reference to the present invention. Invention limitations.

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

In the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrally connected; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or the internal communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may include the first and second features in direct contact, or may include the first and second features Not directly but through additional features between them. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is "below", "below" and "below" the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

As shown in Figures 1-6, an office leisure chair includes chair legs, a seat 2 and a chair back arranged above the chair legs. In a further preferred solution, the lower part of the seat 2 is connected above the chair legs through the tilting chassis 4 , and the lower end of the seat back is movably connected to the rear end of the seat 2 or the rear end of the tilting chassis 4 .

The seat 2 is connected with a foot pad telescopic mechanism. In the above technical solution, the seat back is connected to the rear end of the seat 2 or the rear end of the tilting chassis 4 in a hinged manner. It can be used to adjust the inclination angle of the seat back and use it with the foot pad telescopic mechanism.

For the foot pad telescopic mechanism, its specific structure is as follows:

The foot pad telescopic mechanism includes a bracket rod 51 slidably connected to the seat 2 , and a foot pad body 52 slidably connected to the outer end of the bracket rod 51 . Different from the existing structure, the foot pad telescopic mechanism includes a bracket rod 51 slidably connected to the seat 2 , and a foot pad body 52 slidably connected to the outer end of the bracket rod 51 . That is, in the foot pad telescopic mechanism, on the one hand, the bracket rod 51 can slide relative to the seat 2 , and on the other hand, the foot pad body 52 can slide relative to the outer end of the bracket rod 51 . The length that the foot pad body 52 can extend outward is realized by two-stage sliding, and the sliding paths of the two-stage sliding can be arranged up and down, which reduces the length of the sliding path of each stage and reduces the bracket rod compared with the single-stage sliding. 51 length, and it is convenient for the foot pad body 52 to be hidden.

On the basis of the above solution, the bracket rod 51 is in the first sliding path relative to the seat 2 , and the foot pad body 52 is in the second sliding path relative to the outer end of the bracket rod 51 . Two ends of one of the sliding paths are provided with positioning stations, so that the two components in the sliding path are relatively fixed at the beginning and the end of the sliding path. The other sliding path is provided with a plurality of positioning stations between the two ends, so that the two components in the sliding path have a plurality of positioning positions. In this solution, two ends of a sliding path are provided with positioning stations, so that the two parts are relatively fixed at the beginning and end of the sliding path, corresponding to the adjustment between the storage state and the unfolding state of the foot pad body 52 . Another sliding path is provided with a plurality of positioning stations between the two ends, and the positioning requirements of different positions of the foot pad body 52 can be achieved through the plurality of positioning stations, which is suitable for people with different heights or leg lengths.

In the specific technical solution shown in the figure, the two ends of the first sliding path of the support rod 51 relative to the seat 2 are provided with positioning stations, so that the support rod 51 is positioned relative to the seat 2 at the two ends of the first sliding path. The beginning and the end of the first sliding path are relatively fixed. The foot pad body 52 is provided with a plurality of positioning stations between the two ends relative to the second sliding path of the outer end of the bracket rod 51 , so that the foot pad body 52 has multiple positions relative to the outer end of the bracket rod 51 . location. That is, in this solution, the adjustment between the storage state and the unfolded state of the foot pad body 52 is realized by the movement of the support rod 51 relative to the seat 2; Positioning requirements for different locations.

In a specific embodiment, the seat 2 is provided with a sliding guide member 53 , and the bracket rod 51 is inserted into the sliding guide member 53 and can slide relative to the sliding guide member 53 . Both ends of the support rod 51 can be snap-connected and fixed with the sliding guide member 53 . In this technical solution, it is defined that the support rod 51 slides relative to the sliding guide member 53 fixed on the seat 2, and the two ends of the support rod 51 are snap-connected with the sliding guide member 53 to realize the two ends of the sliding path. The positioning of the foot pad body 52 corresponds to the storage state and the unfolded state of the foot pad body 52 in this solution. Specifically, the sliding guide member 53 includes a housing 531 , and a channel 532 for guiding the support rod 51 is provided inside the housing 531 . The casings 531 on the open sides of both ends of the channel 532 are provided with clamping blocks 533 or bayonet, and the inner and outer ends of the support rod 51 are provided with corresponding bayonet 511 or bayonets. In this technical solution, the snap connection and fixation are realized through the cooperation of the snap block and the bayonet. The buckle connection between the said block and the bayonet is preferably elastic, and does not require forced unlocking and locking. It only needs to apply a force greater than a certain value to achieve locking and unlocking. In this way, the user pushes hard It can be locked or unlocked by pulling it in or out. As shown in the figure, the casing 531 on the open sides of the two ends of the channel 532 is provided with a clamping block 533, and the inner and outer ends of the bracket rod 51 are provided with a bayonet 511, and the two ends of the clamping block are arc-shaped. There are also arc walls on both sides of the bayonet, and the open end of the bayonet is smaller than the maximum diameter inside it. In this way, when a large pressure or pulling force is applied, the clamping block can be snapped into the bayonet to be fixed or pulled out from the bayonet without locking or unlocking.

Further, a cushion cover 54 is fixedly installed in the channel 532 of the housing 531 , and at least one abutting portion 541 is provided on all end surfaces of the inner wall of the cushion cover 54 . The abutting portion 541 is an arc-shaped bent portion recessed toward the inside of the channel 532 relative to the cushion cover 54 . In this technical solution, a cushion sleeve 54 is provided on the channel 532 inside the housing 531 for contacting and positioning the support rod 51 , and each end surface of the inner wall of the cushion sleeve 54 is provided with at least one recess relative to the cushion sleeve 54 toward the inside of the channel 532 The seat abutting part 541 of the arc-shaped bending part, the setting of the abutting part 541 makes the bracket rod 51 only abut the most concave area on the abutting part 541, thus reducing the contact area between the cushion cover 54 and the bracket rod 51, and In the embodiment, the cushion cover 54 is preferably selected as a metal cover, so that the sliding resistance of the support rod 51 relative to the cushion cover 54 is smaller and the sliding is smoother.

The seat 2 includes an upper bracket 20a for forming a seating surface, and a bottom plate 20b under the upper bracket, and a seat cavity 21 is formed between the upper bracket and the bottom plate; when the foot pad body 52 is in the stowed state, at least partially inside the seat cavity 21 . Different from the existing structure, the seat includes an upper bracket for forming a seating surface, and a bottom plate below the upper bracket, and a seat cavity is formed between the upper bracket and the bottom plate. When the foot pad body is in the storage state, at least part of the foot pad body is in the seat cavity. In this way, the body part of the foot pad is accommodated in the seat cavity, which is difficult to detect from the outside, and will not affect the normal riding demand.

This solution can be implemented in the following ways: 1. An independent bottom plate is arranged below the seat (2), and a seat cavity 21 is formed with it;

2. The entire interior of the seat 2 is provided with a seat cavity 21 for accommodating the foot pad body 52 , and a cavity 22 is provided on the front end surface of the seat cavity 21 .

This embodiment adopts the method as shown in the figure (ie, the second solution), the seat cavity 21 of the seat 2 is further provided with a first chute 23, and the sliding guide member 53 is embedded in the seat cavity 21 of the seat 2 On the front end of the first sliding groove 23 inside, the bracket rod 51 is slidably arranged in the first sliding groove 23 and passes through the sliding guide member 53 . The foot pad body 52 can enter the seat cavity 21 of the seat 2 through the cavity opening 22 . In this technical solution, a seat cavity 21 is provided on the seat 2 , and the sliding guide member 53 is embedded on the front end of the first chute 23 in the seat cavity 21 of the seat 2 . When in use, the support rod 51 moves along the first chute 23 relative to the sliding guide member 53 , so that the foot pad body 52 can slide relative to the seat 2 to adjust between the storage state and the unfolding state. Moreover, in the storage state, the foot pad body 52 is hidden and stored in the seat cavity 21 of the seat seat 2, and only the entire seat seat 2 can be seen from the outside, but the foot pad telescopic mechanism and the foot pad cannot be seen. Simple and beautiful.

In addition, as shown in FIGS. 5 and 6 , a positioning block 55 is provided on the outer end of the bracket rod 51 , a second chute 521 is provided on the foot pad body 52 , and the positioning block 55 is embedded in the second chute 521 and can move along the second chute 521 . The second chute 521 is provided with a plurality of positioning stations between two ends, so that the positioning block 55 has a plurality of positioning positions relative to the second chute 521 . Racks 522 are provided on both side walls of the second chute 521 . Two ends of the positioning block 55 are provided with elastic arms 551 , an elastic deformation space 552 is provided between the elastic arm 551 and the positioning block 55 , and the free end of the elastic arm 551 is provided with the rack 522 the positioning teeth 553. In this technical solution, the foot pad body 52 is provided with racks 522 on both side walls of the second chute 521 , and the racks 522 guide and position the positioning block 55 . Specifically, when the positioning block 55 moves relative to the rack 522 , under the action of the elastic arm 551 on the positioning block 55 , the positioning teeth 553 always abut the rack 522 . When the positioning tooth portion 553 abuts against the tooth tips on the rack 522 , the elastic arm 551 is deformed. When the positioning tooth portion 553 is in contact with the tooth slot on the rack 522, the elastic arm 551 is reset. In a further solution, springs can be arranged on both ends of the positioning block 55 and the two side walls of the second chute 521 of the foot pad body 52 , so that the foot pad body 52 has a tooth feel when pulled.

On the basis of the above solution, the side walls of the foot pad body 52 close both ends of the second chute 521 , and the middle of the second chute 521 is provided with guide ribs 524 along the direction of the chute. The positioning block 55 is formed by abutting two unit blocks 554 , and guiding grooves 555 matching the guiding ribs 524 are provided on the abutting surfaces of the two unit blocks 554 . The side walls of the foot pad body 52 close both ends of the second chute 521 , so that the positioning block 55 will not be separated from the second chute 521 when moving along the second chute 521 . The arrangement of the guide ribs 524 guides the positioning block 55 to slide, so as to avoid dislocation when the two sides of the positioning block 55 slide with the rack 522 . In addition, as shown in FIG. 6 , the positioning block 55 is provided with a plurality of protruding ribs 556 along the direction of the sliding groove of the second sliding groove 521 on the end surface of the positioning block 55 , which is used to reduce the distance between the positioning block 55 and the foot pad body 52 . The contact area of the foot pad body 52 makes sliding more smoothly. In addition, as mentioned above, the bayonet provided on the outer end of the support rod 51 is formed by the abutment of the above-mentioned two unit blocks 554 in this embodiment. The mouth is the same.

In the description of this specification, description with reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples", etc., mean specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and those of ordinary skill in the art will not depart from the principles and spirit of the present invention Variations, modifications, substitutions, and alterations to the above-described embodiments are possible within the scope of the present invention without departing from the scope of the present invention.

Claims (10)

1. The office leisure chair comprises chair legs, a chair seat (2) and a chair back, wherein the chair seat (2) and the chair back are arranged above the chair legs; the chair seat (2) is connected with a foot pad telescopic mechanism; the foot pad telescopic mechanism comprises a foot pad body (52) which is connected to the chair seat (2) in a sliding manner; the method is characterized in that: the seat comprises an upper support (20 a) for forming a sitting surface and a bottom plate (20 b) positioned below the upper support (20 a), and a seat cavity (21) is formed between the upper support (20 a) and the bottom plate (20 b); the foot pad body (52) is at least partially located in the seat cavity (21) in the storage state.

2. An office lounge chair according to claim 1, wherein: the foot pad telescopic mechanism further comprises a support rod (51) connected to the seat (2) in a sliding mode, and the foot pad body (52) is connected to the outer end portion of the support rod (51) in a sliding mode; the bracket rod (51) is arranged in a first sliding path relative to the chair seat (2) and the foot pad body (52) is arranged in a second sliding path relative to the outer end part of the bracket rod (51); two end parts of one sliding path are provided with positioning stations so that the two parts in the sliding path are relatively fixed at the beginning and the tail end of the sliding path; the other slide path is provided with a plurality of positioning stations between the two end parts, so that the two parts in the slide path have a plurality of positioning positions.

3. An office lounge chair according to claim 2, wherein: the support rod (51) is provided with positioning stations relative to two ends of a first sliding path of the seat (2) so that the support rod (51) is relatively fixed relative to the seat (2) at the beginning and the tail end of the first sliding path; the foot pad body (52) is provided with a plurality of positioning stations between the two end parts relative to the second sliding path of the outer end part of the bracket rod (51), so that the foot pad body (52) has a plurality of positioning positions relative to the outer end part of the bracket rod (51).

4. An office lounge chair according to claim 3, wherein: the chair seat (2) is provided with a sliding guide part (53), and the support rod (51) is arranged in the sliding guide part (53) in a penetrating way and can slide relative to the sliding guide part (53); the two ends of the support rod (51) can be connected and fixed with the sliding guide component (53) in a buckling mode.

5. An office lounge chair according to claim 4, wherein: the sliding guide part (53) comprises a shell (531), and a channel (532) for guiding the support rod (51) is arranged in the shell (531); the shell (531) at the opening sides of the two ends of the channel (532) are respectively provided with a clamping block (533) or a clamping block, and the inner end and the outer end of the support rod (51) are respectively provided with a clamping block (511) or a clamping block which is matched with the support rod.

6. An office lounge chair according to claim 5, wherein: a cushion cover (54) is fixedly arranged in the channel (532) of the shell (531), and at least one abutting part (541) is arranged on the end surface of all inner walls of the cushion cover (54); the abutting parts (541) are arc bending parts which are sunken towards the inside of the channel (532) relative to the cushion cover (54), and the most sunken areas of the abutting parts (541) on the end surfaces of all inner walls of the cushion cover (54) are abutted against the support rods (51).

7. An office lounge chair according to claim 4, wherein: the seat is characterized in that a first sliding groove (23) is further arranged in the seat cavity (21) of the seat (2), a sliding guide component (53) is embedded on the front end part of the first sliding groove (23) in the seat cavity (21) of the seat (2), and a support rod (51) is arranged in the first sliding groove (23) in a sliding mode and penetrates through the sliding guide component (53).

8. An office lounge chair according to claim 3, wherein: a positioning block (55) is arranged at the outer end part of the support rod (51), a second sliding groove (521) is arranged on the foot pad body (52), and the positioning block (55) is embedded in the second sliding groove (521) and can move along the second sliding groove (521); the second chute (521) is provided with a plurality of positioning stations between the two ends, so that the positioning block (55) has a plurality of positioning positions relative to the second chute (521).

9. An office lounge chair according to claim 8, wherein: racks (522) are arranged on two side walls of the second sliding chute (521); elastic arms (551) are arranged at the end parts of two sides of the positioning block (55), an elastic deformation space (552) is arranged between the elastic arms (551) and the positioning block (55), and a positioning tooth part (553) matched with the rack (522) is arranged at the end part of the free end of each elastic arm (551).

10. An office lounge chair according to claim 9, wherein: the side walls of the foot pad body (52) seal two end parts of the second sliding chute (521), and a guide rib (524) arranged along the sliding chute direction is arranged in the middle of the second sliding chute (521); the positioning block (55) is formed by butting two unit blocks (554), and a guide groove (555) matched with the guide rib (524) is arranged on the butting surface of the two unit blocks (554).

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