CN221813564U - A seat footrest storage adjustment mechanism and seat - Google Patents

Abstract

The utility model relates to a seat pedal storage adjusting mechanism and a seat, comprising pedal support rods and pedal bodies, wherein the pedal bodies are rotatably connected with the pedal support rods, the rotating storage adjusting mechanism is arranged between the pedal bodies, and the pedal bodies can be turned to a use state position and a storage state position relative to the pedal support rods through the rotating storage adjusting mechanism. The seat pedal is convenient to adjust and is stored according to different use states, the structure is reasonable, the seat pedal is not complex, and the seat pedal is easy to realize industrialization.

Description

A seat footrest storage adjustment mechanism and seat

Technical Field

The utility model relates to a seat footrest storage and adjustment mechanism and a seat, belonging to the technical field of seat components and seats.

Background Art

As furniture closely related to human life, chairs bring convenience to human work and meet the needs of daily desk work.

Work needs. Traditional office chairs do not have footrests. When people sit on such office chairs to rest, their feet can only be placed at 90 degrees to the knees. At this time, people's feet are on the ground or suspended from the ground. However, since the feet are not active when resting, numbness will occur in the feet after a long time. So people have developed a retractable footrest installed under the seat of the office chair. When people need to sit on the office chair to work, the footrest can be retracted and hidden under the seat of the office chair. At this time, the footrest will not affect people's normal work; when people need to sit on the chair to rest, they can stretch out the footrest, and then straighten their feet and place them on the footrest support plate. Since the footrest currently used on office chairs is a telescopic rod directly fixed to the bottom of the seat of the office chair, it is not convenient to store and occupies a large volume.

The Chinese utility model patent with authorization announcement date of April 3, 2020 and authorization announcement number CN210227500U discloses an office chair footrest, including a pair of support rods, a supporting plate and a footrest fixing seat, the pair of support rods are respectively composed of at least three sections of connecting rods, the supporting plate is mounted on one end of the first section of the connecting rod of the pair of support rods, and the footrest fixing seat is mounted on the last section of the connecting rod of the pair of support rods; a fixing seat mounting hole matching the chassis mounting hole on the chassis located at the lower part of the office chair is provided on the footrest fixing seat, and the footrest fixing seat is fixedly connected to the chassis by fasteners; two adjacent sections of connecting rods are telescopically sleeved together. The utility model has a fixing seat mounting hole that matches the chassis mounting hole on the chassis, so that the footrest can be detachably installed under the seat of the office chair through the cooperation of the footrest fixing seat and the chassis; when the footrest fails, it can be removed from the office chair and replaced, without having to replace the entire office chair as in the traditional way, thereby greatly reducing the cost of use and making it more convenient to use. The utility model still has the following shortcomings: the telescopic rod is directly fixed to the bottom of the seat of the office chair, so it is not convenient to store and occupies a large volume. The utility model aims to solve this technical problem by changing the storage and adjustment structure of the footrest and changing the assembly connection method to achieve adaptive storage and adjustment of the footrest.

Utility Model Content

One of the purposes of the utility model is to solve the inconvenience of the prior art in storing and adjusting the seat footrest, and to provide a seat footrest storage and adjustment mechanism that can conveniently adjust and store the seat footrest according to different usage states.

The second purpose of the utility model is to provide a seat equipped with the seat footrest of the utility model, which realizes adaptive storage and adjustment of the footrest by changing the storage and adjustment structure of the footrest and changing the assembly and connection method, thereby greatly improving the convenience and comfort of the seat.

The technical solution adopted by the utility model to solve its technical problems is:

A seat footrest storage adjustment mechanism comprises a footrest support rod and a footrest body, wherein the footrest body is rotationally connected to the footrest support rod, and a rotation storage adjustment mechanism is arranged between the two, and the footrest body can be flipped to a use state position and a storage state position relative to the footrest support rod by the rotation storage adjustment mechanism. The disadvantage of the prior art that the seat footrest is inconvenient to store and adjust can be solved. The solution of the independent claim can conveniently realize the adjustment and storage of the seat footrest according to different use states, and the structure is also relatively reasonable, uncomplicated, and easy to industrialize.

Preferably, the rotating storage adjustment mechanism includes a rotating seat, and a left slide groove and a right slide groove are symmetrically arranged in the rotating seat, a left slide rail is adapted in the left slide groove, and a right slide rail is adapted in the right slide groove, and the adjacent ends of the left and right slide rails are connected to the driving button, and the two sides of the assembly end of the pedal body are rotatably connected to the rotating seat, and are respectively provided with limiting holes adapted to the left and right slide rails. When in use, the ends of the left and right slide rails are respectively inserted into the limiting holes for limiting. Under the action of external force, the driving button drives the left and right slide rails to slide relative to each other, disengage from the limiting holes, release the limiting, and the pedal body rotates relative to the rotating seat to the storage state position. The structural coordination of the slide rail and the slide groove is convenient to operate and has good reliability.

Preferably, the left slide rail and the right slide rail are both L-shaped and are respectively provided with a driving shaft. The driving button is correspondingly provided with a left driving wing and a right driving wing. The left and right driving wings are provided with waist-shaped holes. The cooperation between the driving shaft and the waist-shaped holes enables the driving button to simultaneously drive the left and right slide rails to slide toward each other.

Preferably, the driving button is also provided with an adapted driving button reset spring, and a cover plate is detachably provided on the rotating seat to enclose the left and right slide rails in the rotating seat.

Preferably, rotating cavities adapted to the ends of the rotating seat are respectively provided on both sides of the assembly end of the pedal body, and storage locking mechanisms are also respectively provided in the rotating seat, the storage locking mechanism includes a locking screw, a locking spring and a limit tooth, the locking spring is sleeved on the locking screw, one end of the locking screw is fixed to the rotating seat, and the other end is fixed to the limit tooth, the end of the rotating cavity is provided with a locking groove matching the limit tooth, and the locking groove is provided with a guide inclined surface for the limit tooth to slide in and slide out in the opposite direction.

Preferably, two ends of the rotating chamber are fixedly provided with blind covers.

Preferably, the foot support rod is provided with a telescopic adjustment structure to achieve telescopic adjustment.

A seat comprises a seat body, a footrest structure, a lumbar support structure and a headrest structure. The footrest structure adopts the seat footrest storage and adjustment mechanism.

Preferably, the lumbar support structure includes a seat back frame, a lumbar support body, a support arm and a first elastic automatic adjustment and reset mechanism, one end of the support arm is fixed to the lumbar support body, and the other end is sleeved with the seat back frame, the first elastic automatic adjustment and reset mechanism includes a driving end, a first elastic reset element and a fixed end, the fixed end is fixedly arranged to the seat back frame, and is fixedly connected to the end of the support arm through the driving end, when the lumbar support body is subjected to the force of the human waist, the first elastic reset element is stretched, and when the lumbar support body is relieved of the force of the human waist, the first elastic reset element is automatically reset, and the stretching and resetting are used to realize the adaptive adjustment of the upper and lower positions of the lumbar support body.

The existing seat lumbar support is fixed and cannot be adjusted, or requires manual adjustment of its angle and up and down position to reach a position suitable for the back posture, or can only achieve stepless adjustment of the waist and back up and down. The utility model provides a lumbar support that can achieve adaptive adjustment and can achieve automatic reset in any one or more of the up and down, front and back, and left and right states. The utility model uses the structural design and reasonable layout of the first elastic automatic adjustment and reset mechanism to achieve the up and down adjustment of the waist and back body under the action of the user's waist and back driving force, and can automatically reset, thereby improving the user's comfort.

Preferably, the headrest structure includes a headrest body, an L-shaped support arm and a rotating seat, the support arm includes a sliding section and a lifting section, the two ends of the rotating seat are respectively fixedly connected to the headrest body and the end of the sliding section, the headrest body is provided with a second elastic automatic adjustment and reset mechanism, the second elastic automatic adjustment and reset mechanism includes a second elastic reset element, one end of the second elastic reset element is fixedly connected to the rotating seat, and the other end is fixedly connected to the headrest body, when the headrest body is subjected to the force of the human head, the second elastic reset element is stretched, when the headrest body releases the force of the human head, the second elastic reset element automatically resets, through stretching and reset, the headrest body is adaptively adjusted to the upper and lower positions of the rotating seat. When the human head leans against the headrest body, the resistance of the second elastic reset element (elastic band) moves downward, the elastic band becomes longer with the downward distance between the headrest body and the rotating seat, when the human head leaves the headrest body, the headrest body and the rotating seat are automatically reset under the action of the elastic band.

The beneficial effects of the utility model are as follows: the technical solution of the utility model can conveniently realize the adjustment and storage of the seat footrest according to different usage states, and the structure is also relatively reasonable, uncomplicated, and easy to industrialize. Through the structural design and reasonable layout of the first elastic automatic adjustment and reset mechanism, under the action of the user's waist and back driving force, the up and down adjustment of the waist and back body can be realized, and it can be automatically reset, thereby improving the user's comfort. When the human head rests on the headrest body, the resistance of the second elastic reset element (elastic band) moves downward, and the elastic band becomes longer with the downward distance between the headrest body and the rotating seat. When the human head leaves the headrest body, the headrest body and the rotating seat are automatically reset under the action of the elastic band.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

Fig. 1 is a schematic diagram of the structure of the utility model;

Fig. 2 is a schematic diagram of the structure of the utility model;

Fig. 3 is a schematic diagram of the structure of the utility model;

FIG4 is a schematic diagram of the structure of the utility model;

Figure 5 is a schematic diagram of the structure of the utility model;

FIG6 is a schematic diagram of the structure of the utility model;

Figure 7 is a schematic diagram of the structure of the utility model;

FIG8 is a schematic diagram of the structure of the utility model;

Figure 9 is a schematic diagram of the structure of the utility model;

FIG. 10 is a schematic structural diagram of the present utility model.

The markings in the accompanying drawings are described as follows: 1. pedal body, 2. rotating seat, 3. cover plate, 4. pedal support rod, 5. cover, 6. drive button, 7. left guide rail, 8. limit tooth, 9. locking screw, 10. drive button reset spring, 11. locking spring.

01. Seat back frame, 02. Back frame connector, 03. Support arm fixing assembly, 04. Support arm fixing assembly, 05. Lumbar support base, 06. Lumbar support body, 07. Lumbar support sponge, 08. Lumbar support lifting and lowering block, 09. Elastic belt, 010. Fixed rod, 011. Rotating shaft, 012. Spring, 013. Screw, 014. Cup head self-tapping screw, 015. Shift pin, 016. Shift spring, 017. First lumbar support shift piece, 018. Second lumbar support shift piece, 019. Self-tapping screw, 020. Handle base, 021. Lumbar support handle, 022. Lumbar support handle decorative cover.

1-1, headrest body, 1-2, rotating seat, 1-3, rotating seat disassembled parts, 1-4, elastic band, 1-5, fixed column, 1-6, sliding section, 1-7, lifting section, 1-8, support arm sliding assembly, 1-9, support arm fixed assembly cover, 1-10, sound insulation sleeve, 1-11, rotating bolt, 1-12, decorative cover, 1-13, nut, 1-14, sliding sleeve, 1-15, sliding gear spring, 1-16, gear pin, 1-17, headrest lifting bracket disassembled parts, 1-18, headrest handle, 1-19, lifting and sliding fixed disassembled parts, 1-20, gear hook, 1-21, lifting and sliding gear spring, 1-22, lifting and sliding fixing parts, 1-23, self-tapping screws.

DETAILED DESCRIPTION

The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

Embodiment: As shown in Figures 1-8, a seat footrest storage adjustment mechanism includes a footrest support rod 4 and a footrest body 1. The footrest body 1 is rotatably connected to the footrest support rod 4, and a rotating storage adjustment mechanism is provided between the two. The assembly end of the footrest body 1 can be flipped to a use state position and a storage state position relative to the footrest support rod 4 by the rotating storage adjustment mechanism. The inconvenience of the seat footrest storage adjustment in the prior art is solved. The solution of the independent claim can conveniently realize the adjustment and storage of the seat footrest according to different use states, and the structure is also relatively reasonable, uncomplicated, and easy to industrialize.

Specifically, the rotating storage adjustment mechanism includes a rotating seat 2, wherein a left slide groove and a right slide groove are symmetrically arranged in the rotating seat 2, a left slide rail 7 is adapted to be arranged in the left slide groove, and a right slide rail is adapted to be arranged in the right slide groove, and the adjacent ends of the left slide rail 7 and the right slide rail are connected to the driving button 6, and the two sides of the assembly end of the pedal body 1 are rotatably connected to the rotating seat, and are respectively provided with limiting holes adapted to the left slide rail 7 and the right slide rail. When in use, the ends of the left slide rail 7 and the right slide rail are respectively inserted into the limiting holes for limiting. Under the action of external force, the driving button 6 drives the left slide rail 7 and the right slide rail to slide relative to each other, disengage from the limiting holes, release the limiting, and the pedal body 1 rotates to the storage state relative to the rotating seat 2. The structural coordination of the slide rail and the slide groove is convenient to operate and has good reliability.

Specifically to the utility model, the left slide rail 7 and the right slide rail are both L-shaped, and are respectively provided with a driving shaft. The driving button 6 is correspondingly provided with a left driving wing and a right driving wing, and the left and right driving wings are provided with waist-shaped holes. The cooperation of the driving shaft and the waist-shaped hole enables the driving button 6 to simultaneously drive the left and right slide rails to slide.

Specifically in the present invention, the driving button 6 is also provided with an adapted driving button reset spring 10 , and a cover plate 3 is detachably provided on the rotating seat 2 to enclose the left and right slide rails in the rotating seat 2 .

Specifically to the utility model, both sides of the assembly end of the pedal body 1 are respectively provided with a rotating cavity adapted to the end of the rotating seat 2, and a storage locking mechanism is also respectively provided in the rotating seat, and the storage locking mechanism includes a locking screw 9, a locking spring 11 and a limit tooth 8. The locking spring 11 is sleeved on the locking screw 9, one end of the locking screw 9 is fixed to the rotating seat, and the other end is fixed to the limit tooth 8. The end of the rotating cavity 2 is provided with a locking groove that cooperates with the limit tooth, and the locking groove is provided with a guide inclined surface for the limit tooth 8 to slide in and slide out in the opposite direction.

Specifically in the present invention, two ends of the rotating chamber are fixedly provided with blind covers 5.

Specifically in the present invention, the foot support rod 4 is provided with a telescopic adjustment structure, which can realize telescopic adjustment.

A seat comprises a seat body, a footrest structure, a lumbar support structure and a headrest structure, wherein the footrest structure adopts the seat footrest storage and adjustment mechanism.

Specifically to the utility model, as shown in FIG9 , the lumbar support structure includes a seat back frame 01, a lumbar support body 06, a support arm and a first elastic automatic adjustment and reset mechanism, one end of the support arm is fixed to the lumbar support body 06, and the other end is sleeved with the seat back frame 01, the first elastic automatic adjustment and reset mechanism includes a driving end, a first elastic reset element and a fixed end, the fixed end is fixedly arranged to the seat back frame 01, and is fixedly connected to the end of the support arm through the driving end, when the lumbar support body is subjected to the force of the human waist, the first elastic reset element is stretched or compressed, and when the lumbar support body 06 releases the force of the human waist, the first elastic reset element is automatically reset, and the upper and lower positions of the lumbar support body are adaptively adjusted through stretching or compression and reset.

As mentioned above, the existing seat lumbar support is fixed and cannot be adjusted, or requires manual adjustment of its angle and up and down position to reach a position suitable for the back posture, or can only achieve stepless adjustment of the waist and back up and down. The present invention provides a lumbar support that can achieve adaptive adjustment and can achieve automatic reset in any one or more of the up and down, front and back, and left and right states. The technical solution of the independent claim of the present invention, through the structural design and reasonable layout of the first elastic automatic adjustment and reset mechanism, can achieve the up and down adjustment of the waist and back body under the action of the user's waist and back driving force, and can automatically reset, thereby improving the user's comfort.

In this embodiment, the multifunctional adjustable seat lumbar support also includes a lumbar support lifting and pressing block 08, the first elastic reset element includes an elastic reset element body and fixed rods 010 arranged at both ends, the lumbar support lifting and pressing block 08 is fixedly connected to the seat back frame 01, the elastic reset element body is fixedly connected to the lumbar support lifting and pressing block 08 and the end of the support arm through the fixed rod 010, and the elastic reset element body is an elastic band 09.

In this embodiment, the multifunctional adjustable seat lumbar support is also provided with a second elastic sliding automatic adjustment and reset mechanism, which is arranged on the support arm, including a support arm fixing component 03, a support arm sliding component 04 and a second elastic reset element, one end of the second elastic reset element is fixed to the support arm fixing component 03, and the other end is fixed to the support arm sliding component 04, and the support arm fixing component 03 and the support arm sliding component 04 can slide relative to each other, when the lumbar support body 06 is subjected to the force of the human waist, the second elastic reset element is stretched or compressed, and when the lumbar support body 06 is relieved of the force of the human waist, the second elastic reset element is automatically reset, and the front and rear positions of the lumbar support body 06 are adaptively adjusted by stretching or compressing and resetting. Under this technical solution, through the structural design and reasonable layout of the second elastic automatic adjustment and reset mechanism, the front and rear adjustment of the lumbar back body can be achieved under the action of the user's waist and back driving force, and it can be automatically reset, thereby improving the comfort of the user.

In this embodiment, the second elastic sliding automatic adjustment and reset mechanism is further provided with a control switch, which controls the relative sliding position of the support arm sliding component 04 relative to the support arm fixed component 03, and the second elastic reset element is an elastic band 09.

In this embodiment, the control switch is a manual control switch, including a shift pin 015, a shift spring 016, a first lumbar support shift member 017, and a second lumbar support shift member 018. The support arm fixing assembly 03 and the support arm sliding assembly 04 are provided with a shift slot adapted to the shift pin 015, which can manually realize the adaptive adjustment distance of the front and rear positions of the lumbar support body 06.

In this embodiment, the control switch also includes a handle base 020, a lumbar support handle 021 and a lumbar support handle decorative cover 022. The handle base 020 is socketed and fixed with the first lumbar support shift piece 017 and the second lumbar support shift piece 018. The lumbar support handle 021 is fixed to the handle base 020 by self-tapping screws 019. The lumbar support handle decorative cover 022 is arranged at the end of the lumbar support handle 021.

In this embodiment, the lumbar support body 06 includes a left lumbar support and a right lumbar support, the middle parts of the left and right lumbar supports are relatively rotatably connected, and a third elastic reset element is directly or indirectly provided between the left and right lumbar supports and the seat back frame 01. When the lumbar support body 06 is subjected to the force of the human waist, the third elastic reset element is compressed. When the lumbar support body 06 is relieved of the force of the human waist, the third elastic reset element automatically resets. Through compression and reset, the left and right positions of the lumbar support body 06 are adaptively adjusted to fit the waist to achieve a comfortable state. Under this technical solution, through the structural design and reasonable layout of the third elastic automatic adjustment reset mechanism, the left and right adjustment of the lumbar back body 06 can be achieved under the action of the user's waist and back driving force, and it can be automatically reset, thereby improving the user's comfort.

In this embodiment, the lumbar support body 06 also includes a lumbar support base 05. Both ends of the lumbar support base 05 are provided with a rotating part with a rotating shaft hole. The two ends of the left and right lumbar supports are respectively provided with an adaptive rotating part. Through the cooperation of the rotating shaft, the left and right lumbar supports are rotatably connected to the lumbar support base. The third elastic reset element is arranged between the left and right lumbar supports and the lumbar support base. The third elastic reset element is a spring 012.

In this embodiment, the multifunctional adjustable seat lumbar support is further provided with a backrest frame connector 02, through which the seat backrest frame 01 and the support arm are detachably and fixedly connected.

The existing seat lumbar support is fixed and cannot be adjusted, or requires manual adjustment of its angle and up and down position to reach a position suitable for the back posture, or can only achieve stepless adjustment of the waist and back up and down. The utility model provides a lumbar support that can achieve adaptive adjustment and can achieve automatic reset in any one or more of the up and down, front and back, and left and right states. The utility model uses the structural design and reasonable layout of the first elastic automatic adjustment and reset mechanism to achieve the up and down adjustment of the waist and back body under the action of the user's waist and back driving force, and can automatically reset, thereby improving the user's comfort.

Specifically, the utility model, as shown in Figure 10, includes a headrest body 1-1, an L-shaped support arm and a rotating seat 1-2, the support arm includes a sliding section 1-6 and a lifting section 1-7, the two ends of the rotating seat 1-2 are respectively fixedly connected to the headrest body 1-1 and the end of the sliding section 1-6, the headrest body 1-1 is provided with a first elastic automatic adjustment and reset mechanism, the first elastic automatic adjustment and reset mechanism includes a first elastic reset element, one end of the first elastic reset element is fixedly connected to the rotating seat 1-2, and the other end is fixedly connected to the headrest body 1-1, when the headrest body 1-1 is subjected to the force of the human head, the first elastic reset element is stretched, when the headrest body 1-1 is relieved of the force of the human head, the first elastic reset element automatically resets, and the upper and lower positions of the headrest body 1 relative to the rotating seat 1-2 are adaptively adjusted through stretching and resetting. When the human head leans against the headrest body 1-1, the resistance of the first elastic reset element (elastic band 1-4) moves downward, and the elastic band 1-4 becomes longer as the headrest body 1-1 and the rotating seat 1-2 move downward. When the human head leaves the headrest body 1-1, the headrest body 1-1 and the rotating seat 1-2 are automatically reset under the action of the elastic band 1-4.

Specifically, the first elastic reset element is an elastic band 1-4, and fixing columns 1-5 are respectively provided at both ends of the elastic band 1-4. The headrest body 1-1 and the rotating seat 1-2 are respectively provided with fixing parts of the elastic band 1-4, which are fixed by the cooperation of the fixing parts and the fixing columns 1-5.

Specifically, the multifunctional adjustable seat headrest is also provided with a second elastic sliding automatic adjustment and reset mechanism, which is arranged in the sliding section 1-6 of the support arm, including a support arm fixing assembly (illustrated in the figure, not numbered, wherein 1-9 is a support arm fixing assembly cover), a support arm sliding assembly 1-8 and a second elastic reset element, one end of the second elastic reset element is fixed to the support arm fixing assembly, and the other end is fixed to the support arm sliding assembly 1-8, the support arm fixing assembly and the support arm sliding assembly 1-8 can slide relative to each other under the action of the headrest body 1-1, when the headrest body 1-1 is subjected to the action of the human head, the second elastic reset element is stretched, and when the headrest body 1-1 is relieved of the action of the human head, the second elastic reset element automatically resets, and the stretching and resetting are used to realize the adaptive adjustment of the front and rear positions of the headrest body 1-1.

Specifically, the second elastic sliding automatic adjustment and reset mechanism is also provided with a control switch, which controls the relative sliding position of the support arm sliding component 1-8 relative to the support arm fixed component, and the second elastic reset element is an elastic band 1-4.

Specifically, the control switch is a manual control switch, including a shift pin 1-16, a sliding shift spring 1-15, and a shift sleeve 1-14. The support arm fixing assembly and the support arm sliding assembly 1-8 are provided with a shift slot adapted to the shift pin 1-16, which can manually realize the adaptive adjustment distance of the front and rear positions of the headrest body 1-1.

Specifically, the control switch also includes a headrest handle 1-18, and the headrest handle 1-18 is fixed to the gear sleeve 1-14.

In the present invention, when the sliding function is locked, the pillow body 1-1 is fixed in front and back. When the sliding function is unlocked, when the human head leans against the headrest body 1-1, the resistance of the elastic band moves backward, the elastic band 1-4 is stretched, and the distance from the support arm fixing assembly becomes longer. When the human head leaves the headrest body 1-1, the elastic band 1-4 automatically resets under the action of the restoring force. When the human head leans against the headrest body 1-1 and slides backward to find a comfortable position, the headrest handle 1-18 can be rotated to lock the gear.

Specifically, the rotating seat 1-2 is rotatably connected to the end of the support arm sliding assembly 1-8 via a rotating shaft. The circumferential angle of the headrest body can be adjusted according to the needs of the head to achieve a comfortable state. As shown in the figure, the rotating shaft structure includes a sound insulation sleeve 1-10, a rotating bolt 1-11, a decorative cover 1-12, a nut 1-13, etc., and the assembly method is a conventional method for realizing a rotating connection by ordinary personnel in this field.

Specifically, the support arm is also provided with a headrest lifting mechanism.

Specifically, the headrest lifting mechanism includes a headrest lifting bracket disassembled part 1-17, a lifting sliding fixed disassembled part 1-19, a gear hook 1-20, a lifting gear spring 1-21, a lifting sliding fixed part 1-22, and a self-tapping screw 1-23. The headrest lifting mechanism is also disclosed in the prior art, and the assembly method is a conventional method for ordinary personnel in this field to achieve a rotational connection.

The above-described embodiment is only a preferred solution of the present invention and does not limit the present invention in any form. There are other variations and modifications without exceeding the technical solution described in the claims.

Claims (9)

1. The pedal storage adjusting mechanism of the seat comprises a pedal supporting rod and a pedal body and is characterized in that the pedal body is rotationally connected with the pedal supporting rod, a rotation storage adjusting mechanism is arranged between the pedal body and the pedal supporting rod, and the pedal body can be turned to a use state position and a storage state position relative to the pedal supporting rod through the rotation storage adjusting mechanism; the rotation storage adjusting mechanism comprises a rotation seat, a left sliding groove and a right sliding groove are symmetrically arranged in the rotation seat, a left sliding rail is arranged in the left sliding groove in a matched mode, a right sliding rail is arranged in the right sliding groove in a matched mode, similar ends of the left sliding rail and the right sliding rail are connected with a driving button, two sides of an assembly end of a pedal body are rotationally connected with the rotation seat, limiting holes matched with the left sliding rail and the right sliding rail are respectively formed in the two sides of the assembly end of the pedal body, when the pedal body is in a use state, the ends of the left sliding rail and the right sliding rail are respectively inserted into the limiting holes to be limited, the driving button drives the left sliding rail and the right sliding rail to slide relatively under the action of external force, the limiting holes are separated, limiting is relieved, and the pedal body rotates to a storage state position relative to the rotation seat.

2. The seat footrest stowing adjustment mechanism of claim 1, wherein: the left slide rail and the right slide rail are L-shaped and are respectively provided with a driving shaft, the driving buttons are correspondingly provided with a left driving wing and a right driving wing, waist-shaped holes are formed in the left driving wing and the right driving wing, and the driving buttons are matched with the waist-shaped holes to drive the left slide rail and the right slide rail to slide in opposite directions.

3. The seat footrest stowing adjustment mechanism of claim 2, wherein: the driving button is also provided with an adaptive driving button reset spring, and the rotating seat is detachably provided with a cover plate so as to seal the left sliding rail and the right sliding rail in the rotating seat.

4. The seat pedal storage adjusting mechanism according to claim 1, 2 or 3, wherein two sides of the assembly end of the pedal body are respectively provided with a rotating cavity matched with the end part of the rotating seat, the rotating seat is also respectively provided with a storage locking mechanism, the storage locking mechanism comprises a locking screw rod, a locking spring and a limiting tooth, the locking spring is sleeved on the locking screw rod, one end of the locking screw rod is fixed with the rotating seat, the other end of the locking screw rod is fixed with the limiting tooth, the end part of the rotating cavity is provided with a locking groove matched with the limiting tooth, and the locking groove is provided with a guide inclined plane for the sliding in and the reverse sliding out of the limiting tooth.

5. The seat footrest storage adjustment mechanism of claim 4, wherein the two ends of the rotation chamber are fixedly provided with caps.

6. A seat footrest storage adjustment mechanism as claimed in claim 1, 2 or 3, wherein the footrest support bar is provided with a telescopic adjustment structure enabling telescopic adjustment.

7. A seat comprising a seat body, a footrest structure, a lumbar support structure and a headrest structure, wherein the footrest structure employs the footrest stowing adjustment mechanism of the seat of any one of claims 1-6.

8. The seat according to claim 7, wherein the lumbar support structure comprises a seat back skeleton, a lumbar support body, a support arm and a first elastic automatic adjustment and reset mechanism, one end of the support arm is fixed with the lumbar support body, the other end of the support arm is sleeved with the seat back skeleton, the first elastic automatic adjustment and reset mechanism comprises a driving end, a first elastic reset element and a fixing end, the fixing end is fixedly arranged with the seat back skeleton, the driving end is fixedly connected with the end of the support arm through the driving end, when the lumbar support body receives the acting force of the waist of a human body, the first elastic reset element is stretched, when the lumbar support body releases the acting force of the waist of the human body, the first elastic reset element automatically resets, and the self-adaptive adjustment of the up-down position of the lumbar support body is realized through stretching and resetting.

9. The seat according to claim 7, wherein the headrest structure comprises a headrest body, an L-shaped supporting arm and a rotating seat, the supporting arm comprises a sliding section and a lifting section, two ends of the rotating seat are fixedly connected with the ends of the headrest body and the sliding section respectively, the headrest body is provided with a second elastic automatic adjusting and resetting mechanism, the second elastic automatic adjusting and resetting mechanism comprises a second elastic resetting element, one end of the second elastic resetting element is fixedly connected with the rotating seat, the other end of the second elastic resetting element is fixedly connected with the headrest body, when the headrest body is subjected to the action force of the head of a human body, the second elastic resetting element is stretched, and when the headrest body is relieved from the action force of the head of the human body, the second elastic resetting element is automatically reset, and the self-adaptive adjustment of the upper position and the lower position of the headrest body relative to the rotating seat is realized through stretching and resetting.