Seat bracket structure and seat
阅读说明：本技术 一种座椅搁脚结构及座椅 (Seat bracket structure and seat ) 是由 何基 蒋小兵 虞红潮 于 2019-10-17 设计创作，主要内容包括：本发明涉及一种座椅搁脚结构及座椅,搁脚结构包括：支撑轴,沿周向方向支撑轴具有第一锁定位和第二锁定位；搁脚板,搁脚板包括对向设置的根部端和自由端,根部端上开有容纳支撑轴的容纳腔,搁脚板能够相对于支撑轴转动；活动锁止件,活动锁止件设置在搁脚板的容纳腔内,活动锁止件是沿支撑轴径向方向运动,搁脚板转动至活动锁止件与第一、二锁定位接合时,搁脚板与支撑轴保持相对固定,搁脚板处于锁定状态；活动锁止件与第一、二锁定位分离时,搁脚板处于解锁状态并且搁脚板绕支撑轴旋转；一种座椅,搁脚板可收拢在座部下方。与现有技术相比,本发明具有结构紧凑精简、操作便利、占用空间小、更加便于模块化、应用范围更广、外表简洁美观的优势。(The invention relates to a seat footrest structure and a seat, wherein the footrest structure comprises: a support shaft having a first lock position and a second lock position in a circumferential direction; the footrest comprises a root end and a free end which are arranged oppositely, the root end is provided with an accommodating cavity for accommodating the supporting shaft, and the footrest can rotate relative to the supporting shaft; the movable locking piece is arranged in the accommodating cavity of the footrest, the movable locking piece moves along the radial direction of the supporting shaft, when the footrest rotates until the movable locking piece is jointed with the first locking position and the second locking position, the footrest and the supporting shaft are kept relatively fixed, and the footrest is in a locking state; when the movable locking piece is separated from the first locking position and the second locking position, the footrest is in an unlocked state and rotates around the supporting shaft; a seat, a footrest is foldable under a seat portion. Compared with the prior art, the invention has the advantages of compact and simple structure, convenient operation, small occupied space, more convenient modularization, wider application range, and concise and beautiful appearance.)
1. A seat footrest structure, comprising:
a support shaft (100), the support shaft (100) having a first lock position (110) and a second lock position (120) in a circumferential direction;
a footrest (200), wherein the footrest (200) comprises a root end (270) and a free end (280) which are oppositely arranged, the root end (270) is provided with a containing cavity (210) for containing the support shaft (100), and the footrest (200) can rotate relative to the support shaft (100);
the movable locking piece (300) is arranged in the accommodating cavity (210) of the footrest (200), the movable locking piece (300) moves along the radial direction of the supporting shaft (100), when the footrest (200) rotates to the state that the movable locking piece (300) is engaged with the first locking position (110) or the second locking position (120), the footrest (200) and the supporting shaft (100) are kept relatively fixed, and the footrest (200) is in a locking state; when the movable lock member (300) is separated from the first lock position (110) and the second lock position (120), the footrest (200) is in an unlocked state and the footrest (200) rotates about the support shaft (100).
2. A seat leg rest structure as claimed in claim 1, wherein: the supporting shaft (100) is provided with a sector (130) protruding out of the surface of the supporting shaft (100) along the radial direction, two transition steps are formed at the junction of the sector (130) and the supporting shaft (100), the two transition steps respectively correspond to the first locking position (110) and the second locking position (120), and the sector (130) comprises a sector cambered surface (131) attached to the inner wall of the accommodating cavity (210) along the circumferential direction; when the movable locking piece (300) is separated from the first locking position (110) and the second locking position (120), the movable locking piece (300) can rotate along the fan-shaped arc surface (131).
3. A seat leg rest structure as claimed in claim 2, wherein: the inner wall of the accommodating cavity (210) is provided with a protruding clamping block (211), when the movable locking piece (300) is connected with the first locking position (110), one end of the protruding clamping block (211) is attached to the second locking position (120), and when the movable locking piece (300) is connected with the second locking position (120), the other end of the protruding clamping block (211) is attached to the first locking position (110).
4. A seat leg rest structure as claimed in claim 1, wherein: an accommodating groove (212) is formed in the accommodating cavity (210), the movable locking piece (300) is arranged in the accommodating groove (212), and the movable locking piece (300) can realize displacement action which protrudes out of or is lower than or is parallel to the notch of the accommodating groove (212).
5. A seat leg rest structure as claimed in claim 1 or 4, wherein: the foot rest (200) is connected with a key switch (220) in a rotating mode, and the key switch (220) comprises a rotating portion (221) connected with the foot rest (200) in a rotating mode, a pressing portion (222) pressed against the movable locking piece (300) and an external force pressing portion (223).
6. A seat leg rest structure as claimed in claim 5, wherein: the pressing part (222) of the key switch (220) presses against the middle position of the movable locking piece (300).
7. A seat leg rest structure as claimed in claim 4, wherein: an elastic piece (230) which is abutted against the movable locking piece (300) and the bottom of the accommodating groove (212) is arranged between the movable locking piece and the accommodating groove.
8. A seat leg rest structure as claimed in claim 7, wherein: the movable locking piece (300) is in a long strip shape, notches (310) are formed in two ends of one side edge of the movable locking piece (300), slotted holes (2121) are formed in two ends of the bottom of the accommodating groove (212), and the elastic piece (230) is located between the notches (310) and the slotted holes (2121) on the same side.
9. A seat leg rest structure as claimed in claim 8, wherein: a reinforcing groove (240) is fixedly embedded in the part of the accommodating groove (212) between the slotted holes (2121) at the two ends of the accommodating groove (212), the movable locking piece (300) is arranged in the reinforcing groove (240), and the two ends of the movable locking piece (300) are positioned at the outer sides of the two ends of the reinforcing groove (240).
10. A seat leg rest structure as claimed in claim 1, wherein: the footrest (200) comprises a body (250) and a cover plate (260) which can be buckled, a first accommodating cavity (251) and a second accommodating cavity (261) are respectively formed in the body (250) and the cover plate (260), and the first accommodating cavity (251) and the second accommodating cavity (261) are spliced to form the accommodating cavity (210) for accommodating the support shaft (100).
11. A seat leg rest structure as claimed in claim 10, wherein: the cover plate (260) is elongated, and the cover plate (260) is located only at the root end (270).
12. A seat leg rest structure as claimed in claim 10, wherein: the body (250) is rotatably connected with a key switch (220), and the key switch (220) comprises a rotating part (221) rotatably connected with the body (250), a pressing part (222) pressed against the movable locking piece (300) and an external force pressing part (223).
13. A seat leg rest structure as claimed in claim 2, wherein: the fan-shaped bodies (130) are at least two and are evenly distributed on the supporting shaft (100) at intervals.
14. A seat leg rest structure as claimed in claim 1 or 13, wherein: the supporting shaft (100) is a hexagonal shaft.
15. A seat comprising a seat portion (500), characterized in that: comprising the seat footrest structure according to any of claims 1 to 14, wherein the support shaft (100) is fixedly clamped between two mutually parallel support bars (400), the support bars (400) being slidably connected below the seat (500); when the movable lock (300) is engaged with the first lock position (110), the footrest (200) is in a folded state, the free end (280) of the footrest (200) is positioned below the support bar (400), and when the movable lock (300) is engaged with the second lock position (120), the footrest (200) is in an open state, and the free end (280) of the footrest (200) is positioned in front of the support bar (400).
16. A seat as claimed in claim 15, wherein: an accommodating position (510) is arranged below the seat part (500), and the accommodating position (510) is matched with the structural shape of the footrest (200) in the folded and furled state; the footrest (200) comprises an outer surface (291) and an inner surface (292), when the footrest (200) is located in a folded and furled state and the supporting rod (400) is completely retracted to be below the seat part (500), the inner surface (292) of the footrest (200) is attached to the lower part of the seat part (500), and the outer surface (291) of the footrest (200) is partially spliced with the seat part (500) adjacent to the outer surface (291).
Technical Field
The invention belongs to the technical field of furniture equipment, and particularly relates to a seat footrest structure and a seat.
Background
At present, more and more seats with the function of leg rest are available in the market, but the structures of the leg rest generally have the problems of complex structural design, inconvenient operation, large volume, heavy weight, high production cost, small overall design space of the seat, narrow application range and the like; particularly, the turning of the leg rest is usually realized by adopting at least two switches in the existing leg rest structure, and meanwhile, in the turning process, multiple components are turned synchronously, so that the structure is complex, the size is increased, and after the leg rest is folded, the leg rest often occupies a lot of space below the seat, so that the difficulty in setting other functions below the seat is increased, and further the seat is single in function, heavy in appearance and not attractive.
In view of the requirement of the current market on novel structure of office chairs, the seat parts of a plurality of chairs can be made into novel structures with double layers, hollow middle parts and the like, if the existing leg rest structure is applied to the seat parts, the whole seat structure is extremely heavy, and the addition of the functions of leg rest and the like to the chairs is more difficult; as a conventional article, the seat is particularly a market trend for novel office chairs such as light, thin and thin type and double-layer hollow type, so that how to provide a footrest structure which is compact and simple in structure, convenient to operate, small in occupied space, convenient to modularize and wide in application range is one of the problems to be solved urgently in the prior seat type.
In order to overcome the defects in the prior art, the invention provides the seat leg rest structure and the seat, which have the advantages of compact and simple structure, convenience in operation, small occupied space, convenience in modularization and wider application range.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a seat leg rest structure and a seat, which have the advantages of compact and simple structure, convenience in operation, small occupied space, convenience in modularization and wider application range.
In order to achieve the purpose, the invention adopts the following technical scheme:
a seat footrest structure comprising:
a support shaft having a first lock position and a second lock position in a circumferential direction;
the footrest comprises a root end and a free end which are oppositely arranged, wherein the root end is provided with an accommodating cavity for accommodating the supporting shaft, and the footrest can rotate relative to the supporting shaft;
the movable locking piece is arranged in the accommodating cavity of the footrest, the movable locking piece moves along the radial direction of the supporting shaft, when the footrest rotates until the movable locking piece is jointed with the first locking position or the second locking position, the footrest and the supporting shaft are kept relatively fixed, and the footrest is in a locking state; when the movable locking piece is separated from the first locking position and the second locking position, the footrest is in an unlocked state and rotates around the supporting shaft.
In the invention, in the process that the footrest drives the movable locking piece to synchronously rotate around the supporting shaft, when the movable locking piece moving along the radial direction of the supporting shaft is jointed with the first locking position or the second locking position on the supporting shaft, the footrest is in the locking state of opening or closing, and when the movable locking piece is separated from the first locking position and the second locking position, the footrest is in the unlocking state and rotates around the supporting shaft, thus realizing the turnover of the footrest. The structure for locking and unlocking the footrest is concentrated at the foot end of the footrest, and particularly comprises the support shaft, the movable locking piece and the like which are arranged in the foot end of the footrest, so that the structure is very compact, the occupied space is small, the modular design is more convenient, the operation is more flexible, the influence on the overall design of the seat is small, the application range is wide, the footrest is suitable for seats with different types of structures, and the mold opening is also convenient.
Preferably, the supporting shaft is provided with a sector protruding out of the surface of the supporting shaft along the radial direction, two transition steps are formed at the junction of the sector and the supporting shaft, the two transition steps correspond to the first locking position and the second locking position respectively, and the sector comprises a sector cambered surface attached to the inner wall of the accommodating cavity along the circumferential direction; when the movable locking piece is separated from the first locking position and the second locking position, the movable locking piece can rotate along the fan-shaped cambered surface.
When the movable locking piece is jointed and abutted with the first locking position of the transition step or the second locking position of the transition step, the footrest is in a locking state and cannot be turned over; when the movable locking piece is separated from the first locking position and the second locking position, the footrest is in an unlocking state, the movable locking piece slides along the fan-shaped cambered surface to rotate, and the footrest rotates around the supporting shaft.
Preferably, the inner wall of the accommodating cavity is provided with a convex clamping block, when the movable locking piece is in positioning joint with the first lock, one end of the convex clamping block is attached to the second locking position, and when the movable locking piece is in positioning joint with the second locking position, the other end of the convex clamping block is attached to the first lock.
The phenomenon that the footrest slightly rocks, overturns after the locking has been avoided in the setting of protruding fixture block, guarantees that the locking state of footrest is more stable, reduces the error, guarantees the travelling comfort, improves user experience.
Preferably, the accommodating cavity is provided with an accommodating groove, the movable locking piece is arranged in the accommodating groove, and the movable locking piece can realize displacement action of protruding from or lower than or equal to the notch of the accommodating groove.
When the movable locking piece moves towards the outside of the accommodating groove, the movable locking piece protrudes out of the inner wall of the accommodating cavity (namely the movable locking piece protrudes out of the notch of the accommodating groove), and the movable locking piece enters the first locking position or the second locking position to realize the stable locking state of the footrest, namely the footrest is completely opened or completely folded; when activity locking piece was to the inside displacement of holding tank, activity locking piece was less than or is on a level with holding intracavity wall (promptly activity locking piece is less than or is on a level with holding tank notch), and activity locking piece is fixed a position, the second lock and is locked the looks separation with first lock, realizes the upset of footrest.
Preferably, the footrest is rotatably connected with a key switch, and the key switch includes a rotating portion rotatably connected with the footrest, a pressing portion abutting against the movable locking member, and an external force pressing portion.
When external force presses the key switch, the abutting part on the key switch acts on the movable locking piece, inward displacement of the movable locking piece in the accommodating groove is achieved, the movable locking piece is positioned with the first lock and separated from the second lock, the movable locking piece enters an unlocking state, the footrest can be turned over relative to the supporting shaft, the key switch can be loosened when the movable locking piece contacts with the fan-shaped cambered surface, when the footrest rotates to a certain angle, the movable locking piece is separated from the fan-shaped cambered surface and automatically enters the first lock positioning or the second lock positioning, and the footrest or the locking state of opening or closing is achieved. The invention adopts the modes of one-key locking and one-key unlocking, has convenient operation, smooth operation and time and labor saving.
Preferably, the pressing part of the key switch presses against the middle position of the movable locking piece.
Make the effort be located the intermediate position of activity locking piece, whole activity locking piece atress is even, high-efficient stability when having increased a key locking, unblock, and user experience is good.
Preferably, an elastic member abutting against the movable locking member and the bottom of the accommodating groove is arranged between the movable locking member and the accommodating groove.
The elastic piece is used for realizing the displacement action of pressing down and automatic resetting of the movable locking piece in the accommodating groove, and further realizing the displacement action of the movable locking piece or protruding out of or lower than or flat on the groove opening of the accommodating groove.
Preferably, the movable locking piece is in a strip shape, notches are formed in two ends of one side edge of the movable locking piece, slotted holes are formed in two ends of the bottom of the containing groove, and the elastic piece is located between the notches and the slotted holes on the same side.
The elastic component is located between the notch and the slotted hole on the same side, so that the elastic component is not easy to deviate and other unstable position changes, the acting force is uniform, and the stability of the elastic component during pressing and resetting actions is ensured.
Preferably, a reinforcing groove is fixedly embedded in the accommodating groove part between the groove holes at the two ends of the accommodating groove, the movable locking piece is arranged in the reinforcing groove, and the two ends of the movable locking piece are positioned at the outer sides of the two ends of the reinforcing groove.
When the footrest is unlocked and locked, the movable locking piece performs frequent displacement motion on the accommodating groove, so that the accommodating groove is easily abraded, and therefore, the reinforcing groove is tightly matched in the accommodating groove, the firmness of the accommodating groove is favorably improved, the service life is prolonged, and the stability of the movable locking piece during displacement is favorably improved; simultaneously, arrange slotted hole and elastic component in the strengthening groove outside, can simplify the structure of strengthening groove, the wearing and tearing to the holding tank are mainly because the main part of activity locking piece in addition, and the structure influence of activity locking piece both sides is little.
Preferably, the footrest comprises a body and a cover plate which can be buckled, a first accommodating cavity and a second accommodating cavity are respectively formed in the body and the cover plate, and the first accommodating cavity and the second accommodating cavity are spliced to form the accommodating cavity for accommodating the supporting shaft.
The mould opening and the assembly of the product are convenient, the production cost is reduced, and the later maintenance and the replacement are also facilitated.
Preferably, the cover plate is elongate and is located only at the root end.
The structure of the cover plate is simplified, and the cover plate is more convenient to assemble and disassemble during subsequent maintenance.
Preferably, the body is rotatably connected with a key switch, and the key switch comprises a rotating part rotatably connected with the body, a pressing part pressed against the movable locking piece, and an external force pressing part.
Preferably, the segments are at least two and are evenly distributed on the support shaft.
Stability, fastness when guaranteeing bracket board unblock upset and locking especially when user's shank acts on the bracket board of opening completely, can effectively support the holding down force that the shank brought, prevent the upset of bracket board and rock, improve user experience.
Preferably, the support shaft is a hexagonal shaft.
The longitudinal section of back shaft is the hexagon, can not take place to rotate after with the bracing piece joint, consequently can reduce the spare part of fixed usefulness such as screw, simplifies the structure, reduces the cost.
Preferably, the support shaft is fixedly clamped between two support rods which are parallel to each other.
A seat comprises a seat part and a seat leg rest structure, wherein the seat leg rest structure comprises a support shaft, a support shaft and a support rod, the support shaft is fixedly clamped between two support rods which are parallel to each other, and the support rods are connected with the lower part of the seat part in a sliding manner; when the movable locking piece is in positioning joint with the first lock, the footrest is in a folded state, the free end of the footrest is positioned below the supporting rod, and when the movable locking piece is in positioning joint with the second lock, the footrest is in an opened state, and the free end of the footrest is positioned in front of the supporting rod.
The support rod is connected with the lower part of the seat part in a sliding way, so that the position of the footrest in the front and back directions can be adjusted, the extension length of the footrest can be adjusted, corresponding adjustment can be carried out according to different height requirements of a human body, and the comfort and the application universality are improved; meanwhile, the footrest can be folded under the seat part through retraction of the supporting rod, so that the occupied space is saved, the seat is simple and attractive, the design influence on other functions of the seat, particularly the seat part is small, and the modular design is facilitated.
Preferably, an accommodating position is arranged below the seat part, and the accommodating position is matched with the shape of the footrest structure in the folded and furled state; the footrest comprises an outer surface and an inner surface, when the footrest is positioned in a folding and furling state and the support rod is completely retracted to the position below the seat part, the inner surface of the footrest is attached to the position below the seat part, and the outer surface of the footrest is spliced with the part of the seat part adjacent to the outer surface.
The footrest is folded under the seat part, the footrest and the seat part are connected into a whole in appearance, the lines are harmonious, the sense of unity is strong, the chair seat part is simple and attractive, the chair seat part applied to the prior hollowed-out and double-layer seat parts and other structures can not appear to be obtrusive and heavy, the application is wide, and various types of chair seat parts are practical.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a seat leg rest structure and a seat, which have the advantages of compact and simple structure, convenience in operation, small occupied space, convenience in modularization and wider application range. In the invention, in the process that the footrest drives the movable locking piece to synchronously rotate around the supporting shaft, when the movable locking piece moving along the radial direction of the supporting shaft is jointed with the first locking position or the second locking position on the supporting shaft, the footrest is in a locking state of being completely opened or completely folded, and when the movable locking piece is separated from the first locking position and the second locking position, the footrest is in an unlocking state and rotates around the supporting shaft, so that the turnover of the footrest is realized. The structure for locking and unlocking the footrest is concentrated at one end of the footrest, and the support shaft and the movable locking piece which are arranged at one end of the footrest are arranged in the footrest, so that the structure is very compact, the occupied space is small, the modular design is more convenient, the operation is more flexible, the influence on the overall design of the seat is small, the application range is wide, the seat is suitable for seats with different types of structures, and the mold opening is also convenient. Meanwhile, the footrest is folded under the seat part, so that the occupied space is saved, the footrest is simple and attractive, the design influence on other functions of the seat, particularly the seat part is small, and the footrest is convenient for modular design.
Drawings
FIG. 1 is a schematic view of the seat portion and the footrest in a fitted connection with the footrest structure and with the footrest in an open state according to the embodiment;
FIG. 2 is a schematic view of the structure of FIG. 1 from another angle;
FIG. 3 is a schematic view of the seat portion coupled to the footrest structure with the footrest collapsed under the seat portion according to the embodiment;
FIG. 4 is a schematic view of the structure of FIG. 3 at another angle;
FIG. 5 is a schematic view of an exploded structure among the leg rest structure, the support rod and the sleeve of the embodiment;
FIG. 6 is a partial schematic view of the leg rest structure, the support rod, and the sleeve according to the embodiment;
FIG. 7 is an enlarged view of portion A of FIG. 6;
FIG. 8 is a schematic view of a partially exploded configuration of an embodiment footrest;
FIG. 9 is an enlarged view of the portion B of FIG. 8;
FIG. 10 is a schematic view in section of a portion of the leg rest structure of an embodiment;
FIG. 11 is an enlarged view of the portion C of FIG. 10;
FIG. 12 is a schematic view of a portion of the internal structure of a leg rest structure, support bar, and sleeve of an embodiment;
FIG. 13 is an enlarged view of the portion D of FIG. 12;
FIG. 14 is a schematic view of another internal structure of a leg rest structure, a support rod, and a sleeve in a partially mated relationship according to an embodiment;
FIG. 15 is an enlarged view of section E of FIG. 14;
FIG. 16 is a schematic view of the movable locking member, the reinforcing groove, the elastic member, and the key switch according to the embodiment;
FIG. 17 is a schematic view of the structure of FIG. 16 at another angle;
FIG. 18 is a schematic longitudinal cross-sectional view of FIG. 16 at the center thereof;
FIG. 19 is a schematic cross-sectional view of the body and cover, the key switch, the movable locking member, the receiving groove, and the supporting shaft of the embodiment;
FIG. 20 is a schematic view showing the inner structure of the footrest in a locked state when the footrest is folded in the embodiment;
FIG. 21 is an enlarged view of portion F of FIG. 20;
FIG. 22 is an internal structural view showing an unlocked state in which the movable lock member is pressed in the reinforcing groove in the embodiment;
FIG. 23 is an enlarged view of the portion G of FIG. 22;
FIG. 24 is an internal schematic view of the footrest overturning process in the unlocked state according to the embodiment;
FIG. 25 is an enlarged schematic view of the portion H in FIG. 24;
FIG. 26 is a schematic view showing the internal structure of the footrest in the locked state during the turnover process of the footrest in the embodiment;
FIG. 27 is an enlarged view of section I of FIG. 26;
FIG. 28 is an internal view of the embodiment with the movable latch partially ejected out of the reinforcement slot and engaged with the second locking position and the footrest in a locked position with the footrest fully extended;
FIG. 29 is an enlarged view of the J portion of FIG. 28;
reference numerals: the
Detailed Description
The following describes a detailed embodiment of the present invention with reference to the accompanying drawings.
The present embodiment is described with reference to the orientation of the various components, such as front, rear, etc., in a normal use condition with the user seated in the seat.
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