CN110840136A - Rocking chair leg and chair with same - Google Patents

Abstract

The invention relates to the field of seats, in particular to a rocking chair leg and a seat with the same. A rocking chair leg comprises a foot rest base used for connecting a stand column to support a chair, and a plurality of supporting legs connected to the foot rest base and arranged around the outer side of the foot rest base in the circumferential direction; the foot rest base comprises a base cover and a connecting component which is embedded in a base cavity of the base cover and is used for connecting the stand column; the connecting assembly comprises a pressing plate and a shaft sleeve connected to the middle part of the pressing plate; the pressing plate is connected with the base cover below the pressing plate through a plurality of elastic pieces, the elastic pieces are regularly arranged around the circumference of the shaft sleeve, and two end parts of each elastic piece are respectively connected to the pressing plate and the base cover; when the shaft sleeve swings due to external force, the pressing plate acts on the elastic piece. The rocking amplitude and the rocking smoothness degree of the seat are not limited, the rocking effect is obvious, and the use comfort level is improved.

Description

Rocking chair leg and chair with same

Technical Field

The invention relates to the field of seats, in particular to a rocking chair leg and a seat with the same.

Background

The chair is common furniture in the market at present, and most of the chairs have the function of adjusting the sitting height, namely the height of the chair seat is adjusted through an air rod; in addition, if the swivel chair is used as a common office chair, horizontal rotation and sliding can be realized. In addition, many office workers or students can sit on the seat in most of the day, so that the seat is provided with a swinging function, and the rest of the personnel in the work is facilitated.

The prior office chair (swivel chair) adopts a tilting chassis to realize the function of swinging in front and back amplitude. For example, a swivel chair base with adjustable forward inclination is disclosed in the patent document of chinese utility model with publication number "CN 206252158U", and is used for mounting a swivel chair support rod through a swivel chair rod hole on the base plate seat. An intermediate plate is arranged above the chassis base in a matched manner through a tilting rotating shaft; the tilting rotating shaft is hinged with the vertical wall of the middle plate and the vertical wall of the base plate seat; a forward-inclined plate is installed above the middle plate in a matched mode through a forward-inclined bottom rotating shaft or a forward-inclined middle rotating shaft; the forward-inclined bottom rotating shaft is hinged with a forward-inclined plate vertical wall of the forward-inclined plate and a base plate vertical wall of the base plate seat; the forward-inclined middle rotating shaft is hinged with a forward-inclined plate vertical wall of the forward-inclined plate and a middle plate vertical wall of the middle plate. The base of the swivel chair and the chair back can be simultaneously matched and inclined forwards to fit the back, waist and whole pelvis of a rider, so that the swivel chair better conforms to the human engineering; the rider feels more comfortable. However, the above-mentioned solutions only can realize the front and back range of the chair seat by tilting the chassis, but do not have the function of swinging in the left and right direction or any angle direction.

Based on the defect that the swinging direction is single when the tilting chassis is adopted to realize swinging, the problems can be solved through a chair foot rest in the conventional product. The multi-angle flexible swinging chair foot rest disclosed in the Chinese patent publication with the publication number of CN109674267A comprises a swinging cover, an elastic combined piece and a foot rest body, wherein the foot rest body comprises a cylindrical hollow fixed seat and a plurality of brackets uniformly distributed along the periphery of the fixed seat; the elastic assembly is arranged in the fixed seat; the elastic combined cover is clamped on the top surface of the elastic combined piece; the swinging cover is clamped on the fixed seat; the elastic assembly comprises flange steel, a steel sleeve, an elastic body and a fixed steel ring, wherein the flange steel sleeve is arranged outside the steel sleeve and welded into a whole and then arranged in the elastic body, and the elastic body is bonded on the fixed steel ring. The invention adopts the elastic body as the swinging component to realize random swinging within a certain angle range. And the following are described in its specification [0035 ]: when the multi-angle flexible swinging chair foot rest provided by the invention is actually used, the lifting air rod of the chair is assembled through the taper hole on the inner surface of the steel sleeve, and a user acts on the lifting air rod through self twisting and gravity in any direction to generate a certain torque. The lifting air rod has a certain swing space in the foot rest body. The moment is transmitted to the steel sleeve through the lifting air rod, so that the force acts on the elastic body. The elastic body is compressed when stressed, and the lifting air rod can swing randomly within a certain angle range around.

As described above, the elastic body is pressed obliquely by the steel sleeve to be elastically twisted in use. Based on the description of the embodiment, it can be inferred that the elastic body adopted in the rocking chair foot rest is an elastic rubber column ring, so that the steel sleeve can be provided with elastic force in any direction. But the scheme has the following defects: on one hand, the elastic rubber column ring is of an integral structure, so that the elasticity is limited; on the other hand, the scheme extrudes the elastic rubber cylindrical ring through deflection generated by axial inclination of the steel sleeve, and the steel sleeve is positioned at the swinging axis, so that the swinging amplitude of the steel sleeve is not large. Therefore, the swing amplitude and the swing smoothness of the seat are greatly limited, the swing effect is not obvious, and the use comfort level is to be improved.

Disclosure of Invention

In order to solve the above problems, a first object of the present invention is to provide a rocking chair leg, which on one hand uses a plurality of elastic members instead of a whole elastic column of the prior art, and provides a larger elastic deformation range under the requirement of ensuring the whole elastic force requirement. On the other hand, the pressure plate indirectly acts on the elastic element, so that the pressure plate is farther away from the swing axis of the shaft sleeve, and the swing amplitude of the part acting on the elastic element is relatively enlarged.

A second object of the present invention is to provide a seat, in which the rocking amplitude and rocking smoothness are not limited, the rocking effect is significant, and the comfort in use is improved.

In order to achieve the purpose, the invention adopts the following technical scheme:

a rocking chair leg comprises a foot rest base used for connecting a stand column to support a chair, and a plurality of supporting legs connected to the foot rest base and arranged around the outer side of the foot rest base in the circumferential direction; the method is characterized in that: the foot rest base comprises a base cover and a connecting component which is embedded in a base cavity of the base cover and is used for connecting the stand column; the connecting assembly comprises a pressing plate and a shaft sleeve connected to the middle part of the pressing plate; the pressing plate is connected with the base cover below the pressing plate through a plurality of elastic pieces, the elastic pieces are regularly arranged around the circumference of the shaft sleeve, and two end parts of each elastic piece are respectively connected to the pressing plate and the base cover; when the shaft sleeve swings due to external force, the pressing plate acts on the elastic piece.

The invention adopts the technical scheme, and relates to a rocking chair leg, wherein a plurality of supporting legs in the rocking chair leg are circumferentially arranged around the outer side of a foot rest base, and a connecting assembly in the foot rest base comprises a pressing plate and a shaft sleeve connected to the middle part of the pressing plate; the pressure plate is arranged in the base cavity of the base cover and is connected with the base cover below the pressure plate through a plurality of elastic pieces. When the rocking chair leg is arranged on the seat, the lower end of the upright post (generally an air rod) of the seat is connected on the shaft sleeve. When the occupant provides a twisting force to the seat, the bushing oscillates in a manner that deflects about its axis. Different from the prior art, the swing of the shaft sleeve in the scheme does not directly act on the elastic element, but indirectly acts on the elastic element through the pressing plate, the pressing plate is farther away from the swing axis of the shaft sleeve, and the swing amplitude of the part acting on the elastic element is relatively amplified. Further different from the prior art, the scheme adopts the mode that a plurality of elastic pieces are regularly arranged around the circumference of the shaft sleeve, so that the deformation quantity of a single elastic piece is larger, and the plurality of elastic pieces are matched to provide integral reset elastic force; when the pressure plate inclines to a single side, the elastic elements on the side are pressed, and the elastic elements on the opposite side are stretched to provide corresponding reset force. Therefore, in the technical scheme, on one hand, a plurality of elastic pieces are adopted to replace the whole elastic column body in the prior art, and a larger elastic deformation range is provided under the requirement of ensuring the whole elastic force requirement. On the other hand, the pressure plate indirectly acts on the elastic element, the pressure plate is farther away from the swing axis of the shaft sleeve, and the swing amplitude of the part acting on the elastic element is relatively enlarged; thereby the rocking amplitude and the rocking smoothness degree of the seat are not limited, the rocking effect is obvious, and the use comfort is improved.

It should be noted that: in the above-mentioned "swing width of the portion acting on the elastic member", the "portion" means a position where the elastic member is directly pressed; in the background art solutions refer to the side walls of the steel jacket; the connecting position of the pressure plate and the elastic piece is referred to in the scheme; the "swing amplitude" refers to the width or displacement, rather than the angle, of the object (i.e., the "part" referred to above) that is spread out by the vibration or swing.

Preferably, a deformation gap is left between the outer edge of the pressure plate and the inner side wall surface of the base cover, and the inner side wall surface of the base cover limits the swing amplitude of the pressure plate. In this solution, the pressure plate is first located (hidden) in the base cover, thereby protecting the pressure plate and the elastic member thereunder. Moreover, the shaft sleeve indirectly acts on the elastic part through the pressure plate, and the pressure plate indirectly amplifies the swing amplitude of the acting part; a deformation gap is reserved between the outer edge of the pressing plate and the inner side wall surface of the base cover, namely a gap is reserved for the swinging process of the pressing plate; further, the inner side wall surface of the base cover limits the swing amplitude of the pressing plate, so that the swing amplitude of the pressing plate (indirectly restricting the seat) is restricted, the pressing plate swings within a preset safety range, and the seat is prevented from falling or the elastic part is prevented from being damaged due to overload.

Preferably, the number of the elastic pieces is not less than that of the supporting legs; in the above scheme, the rocking chair leg adopts a scheme of a plurality of supporting legs (namely a multi-claw chair leg, and the existing swivel chair generally adopts a five-claw chair leg scheme); when a rider swings on the seat, the seat inclines to one side, and at the moment, a plurality of supporting legs in the extrusion direction are mainly stressed; meanwhile, the elastic parts on one side are mainly stressed. Relatively speaking, the supporting legs are used as fixing pieces, so that the strength is higher; and the corresponding elastic piece needs to be deformed, so that the elastic pieces which are not less than the number of the supporting legs need to be arranged for ensuring the elastic strength.

Preferably, the elastic member is a spring or a rubber member, the top of the spring or the rubber member is connected to the lower end surface of the pressing plate, and the bottom of the spring or the rubber member is connected to the inner bottom surface of the base cover. According to one embodiment of the scheme, the elastic piece is a spring or a rubber piece, the top of the spring or the rubber piece is connected to the lower end face of the pressing plate, and the bottom of the spring or the rubber piece is connected to the inner bottom face of the base cover; mainly provided is an elastic force in the axial direction (vertical direction) of the spring or the rubber member, and although not only the pressure in the axial direction is generated during the swinging process of the pressure plate, the deformation of the plurality of springs or the rubber members can also provide the deformation elastic force generated in the radial direction.

Preferably, the elastic piece is a U-shaped elastic piece, the U-shaped bent end of the U-shaped elastic piece is close to the shaft sleeve, and the U-shaped opening end faces the radial outer side; the U-shaped arm end part of the elastic piece is respectively connected to the lower end surface of the pressing plate and the inner bottom surface of the base cover. In a more preferable embodiment of the present invention, the elastic member is a U-shaped elastic piece, and the end portion of the U-shaped arm of the elastic member is connected to the lower end surface of the pressing plate and the inner bottom surface of the base cover, respectively; the U-shaped elastic piece not only provides deformation elasticity in the vertical direction, but also provides deformation elasticity in the radial direction. When the pressing plate swings, the pressing track of the pressing plate on the U-shaped elastic sheet is arc-shaped (can be divided into an axial part and a radial part); in the process, the motion of the upper U-shaped arm of the U-shaped elastic piece is also suitable for the arc shape, and the provided elastic force is also suitable.

Preferably, the distance between the two U-shaped arms of the U-shaped elastic sheet is gradually increased from the U-shaped bent end to the U-shaped opening end; the U-shaped arm end part of the elastic piece is respectively connected to the edge of the lower end surface of the pressure plate and the edge of the inner bottom surface of the base cover. In the technical scheme, the swing amplitude of the edge of the pressing plate is the largest, so that the end part of the U-shaped arm of the elastic piece is respectively connected to the edge of the lower end surface of the pressing plate and the edge of the inner bottom surface of the base cover, and a better elastic twisting effect is achieved. Further, the distance between the two U-shaped arms of the U-shaped elastic sheet is gradually increased; in the process of increasing the variable of the U-shaped elastic sheet, the contact area between the U-shaped elastic sheet and the pressing plate is gradually increased, and the U-shaped elastic sheet is more stable to the elastic support of the pressing plate.

Preferably, the base cover comprises a cover body and a cover connected to the cover body; the cover cap is provided with a first through hole which corresponds to the shaft sleeve and has a hole diameter larger than the inner diameter of the shaft sleeve. In the technical scheme, the cover cap is used for covering the cover body, so that the connecting assembly is hidden in the base cavity, the stand column penetrates through the shaft sleeve in the cover cap to be connected, the stand column can swing when in use, and the aperture of the first through hole is larger than the inner diameter of the shaft sleeve.

Preferably, a base plate is fixedly connected inside the cover body, the base plate is positioned below the pressure plate, and two end parts of the elastic piece are respectively connected to the pressure plate and the base plate; the middle part of backing plate is equipped with the second through-hole, and the axle sleeve is worn to locate in the second through-hole of backing plate, and the cover is equipped with the rubber packing ring on the second through-hole of backing plate, and the internal diameter of rubber packing ring is greater than the axle sleeve external diameter. In the technical scheme, the cover body is internally connected and fixed with a backing plate, and two end parts of the elastic piece are respectively connected to the pressing plate and the backing plate. When the device is installed, the pressing plate, the elastic piece and the base plate can be connected and fixed, then the whole device is arranged in the cover body, and the base plate and the cover body are connected and fixed; thereby simplifying the assembly process. The second through hole in the backing plate is used for penetrating and accommodating the shaft sleeve, and the rubber gasket sleeved on the second through hole can limit the swinging of the shaft sleeve in the backing plate on one hand; on the other hand, the damping can be carried out in the limiting process, and the abrasion is avoided.

A seat, characterized by: comprising a rocking chair leg as described above; the lower end part of the upright post or the air rod of the chair is connected with the shaft sleeve in the swinging chair leg, the shaft sleeve can be set into a taper sleeve as in the prior scheme, and the lower end part of the upright post or the air rod of the chair is pressed in the taper hole of the shaft sleeve. After the rocking chair leg is adopted, the rocking amplitude and the rocking smoothness of the chair are not limited, the rocking effect is obvious, and the use comfort level is improved.

Drawings

Fig. 1 is a schematic structural diagram of a rocking chair leg related to the invention.

Fig. 2 is an exploded view of the rocking chair leg structure according to the invention.

Fig. 3 is a sectional view of the structure of the rocking chair leg related to the invention.

Fig. 4 is a schematic structural diagram of the cover body.

Fig. 5 is a schematic structural view of the U-shaped elastic sheet.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.

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

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Example 1:

the rocking chair leg shown in fig. 1 to 5 comprises a foot rest base 1 for connecting a stand column to support a chair, and a plurality of support legs 2 connected to the foot rest base 1 and arranged around the outer circumference of the foot rest base 1. In the embodiment shown in the figures, the rocking chair leg adopts five supporting legs 2, which are consistent with the prior art five-claw chair leg; and the outer end of the supporting leg 2 is connected with a chair wheel 3, so that the chair can slide on the flat ground.

The foot stool base 1 comprises a base cover 11 and a connecting assembly which is embedded in a base cavity of the base cover 11 and used for connecting a stand column. Wherein, the connecting assembly comprises a pressure plate 12 and a shaft sleeve 13 connected to the middle part of the pressure plate 12. As shown in the figure, the pressure plate 12 is also connected to the outside of the upper end portion of the sleeve 13 in a press-fit manner. The pressing plate 12 is connected with the base cover 11 below the pressing plate through a plurality of elastic pieces 14, the elastic pieces 14 are regularly arranged around the circumference of the shaft sleeve 13, and two end parts of each elastic piece 14 are respectively connected to the pressing plate 12 and the base cover 11. When the sleeve 13 swings due to an external force, the pressing plate 12 acts on the elastic member 14.

Above-mentioned technical scheme relates to a rocking chair foot, and many supporting legs 2 in this rocking chair foot surround 1 outside circumference of foot rest base sets up, and coupling assembling in the foot rest base 1 includes clamp plate 12 to and connect the axle sleeve 13 in clamp plate 12 middle part. The pressure plate 12 is installed inside the base cavity of the base cover 11 and connected to the base cover 11 therebelow by a plurality of elastic members 14. When the rocking chair leg is mounted on a seat, the lower end of the upright post (generally, an air rod) of the seat is connected to the shaft sleeve 13. When the occupant provides a twisting force to the seat, the hub 13 oscillates in a manner that deflects about its axis. Unlike the prior art mentioned above, in this solution, the swinging of the shaft sleeve 13 does not directly act on the elastic element 14, but indirectly acts on the elastic element 14 through the pressing plate 12, so that the pressing plate 12 is farther from the swinging axis of the shaft sleeve 13, and the swinging amplitude of the portion acting on the elastic element 14 is relatively enlarged. Further in distinction to the prior art referred to above, this solution employs a plurality of elastic members 14 regularly arranged circumferentially around the sleeve 13, so that the amount of deformation of a single elastic member 14 is greater and the plurality of elastic members 14 cooperate to provide an overall return spring force. When the pressure plate 12 is inclined to a single side, a plurality of elastic members 14 of the side are pressed, and the elastic members 14 of the opposite side are stretched to provide corresponding reset force. Therefore, in this embodiment, on one hand, a plurality of elastic members 14 are used to replace a whole elastic cylinder in the prior art, and a larger elastic deformation range is provided under the requirement of ensuring the whole elastic force requirement. On the other hand, by indirectly acting on the elastic member 14 at the pressure plate 12, the pressure plate 12 is further away from the oscillation axis of the boss 13, and the oscillation amplitude of the portion acting on the elastic member 14 is relatively enlarged. Thereby the rocking amplitude and the rocking smoothness degree of the seat are not limited, the rocking effect is obvious, and the use comfort is improved.

It should be noted that: in the "swing width of the portion acting on the elastic member 14" referred to in the present embodiment, the "portion" refers to a position directly pressing the elastic member 14. In the background art, refer to the side wall of the steel jacket. In this case, the connection position of the pressing plate 12 and the elastic member 14 is referred to. The "swing amplitude" refers to the width or displacement, rather than the angle, of the object (i.e., the "part" referred to above) that is spread out by the vibration or swing.

In a further preferred embodiment, the base cover 11 comprises a cover body 15, and a cover 16 connected to the cover body 15. The cover 16 is provided with a first through hole 161 corresponding to the shaft sleeve 13 and having a diameter larger than the inner diameter of the shaft sleeve 13. The cover 16 is used to cover the cover 15, so as to hide the above-mentioned connecting assembly inside the base cavity, and the first through hole 161 of the cover 16 is used to allow the upright post to pass through the shaft sleeve 13 inside, and the upright post can swing when in use, so the aperture of the first through hole 161 is larger than the inner diameter of the shaft sleeve 13.

A backing plate 17 is fixedly connected inside the cover body 15, the backing plate 17 is positioned below the pressing plate 12, and two end parts of the elastic piece 14 are respectively connected to the pressing plate 12 and the backing plate 17. The middle part of backing plate 17 is equipped with second through-hole 171, and during the second through-hole 171 of backing plate 17 was worn to locate by axle sleeve 13, the cover was equipped with rubber packing ring 172 on the second through-hole 171 of backing plate 17, and the internal diameter of rubber packing ring 172 is greater than axle sleeve 13 external diameter. In the technical scheme, a backing plate 17 is fixedly connected inside the cover body 15, and two end parts of the elastic piece 14 are respectively connected to the pressing plate 12 and the backing plate 17. When the device is installed, the pressing plate 12, the elastic member 14 and the backing plate 17 can be connected and fixed, then the whole device is installed in the cover body 15, and the backing plate 17 and the cover body 15 are connected and fixed. Thereby simplifying the assembly process. The second through hole 171 in the backing plate 17 is used for penetrating and accommodating the shaft sleeve 13, and the rubber gasket 172 sleeved on the second through hole 171 can limit the swing of the shaft sleeve 13 inside the second through hole on one hand. On the other hand, the damping can be carried out in the limiting process, and the abrasion is avoided. The cover body 15 specifically includes an annular side wall 151 and a bottom plate 152, the bottom plate 152 is connected (e.g., welded) to a lower end face of the annular side wall 151, a third through hole 153 is formed in the middle of the bottom plate 152, the first through hole 161, the second through hole 171 and the third through hole 153 are axially corresponding to each other, a sealing cap 154 is connected to a lower end face of the bottom plate 152 and used for sealing the third through hole 153, and the sealing cap 154 is connected to the bottom plate 152 through a screwing component.

A deformation gap is reserved between the outer edge of the pressing plate 12 and the inner side wall surface of the base cover 11, and the inner side wall surface of the base cover 11 is limited in the swinging range of the pressing plate 12. First, the pressing plate 12 is located (hidden) in the base housing 11, thereby protecting the pressing plate 12 and the elastic member 14 thereunder. Further, as described above, the sleeve 13 indirectly acts on the elastic member 14 via the pressure plate 12, and the pressure plate 12 indirectly amplifies the swing width of the acting portion. And a deformation gap is reserved between the outer edge of the pressure plate 12 and the inner side wall surface of the base cover 11, namely a gap is reserved for the swinging process of the pressure plate 12. Further, the inner side wall surface of the base cover 11 also defines the swing amplitude of the pressure plate 12, so that the swing amplitude of the pressure plate 12 (indirectly restricting the seat) is restricted to swing within a preset safety range, and the seat is prevented from falling or the elastic member 14 is prevented from being damaged due to overload.

Based on the above technical solution, it is further preferable in this embodiment that the number of the elastic members 14 is not less than the number of the support legs 2. The rocking chair leg adopts a scheme of a plurality of supporting legs 2 (namely, a multi-claw chair leg, and the existing swivel chair generally adopts a five-claw chair leg scheme). When the rider swings on the seat, the seat inclines to one side, and the supporting legs 2 in the extrusion direction are mainly stressed. Meanwhile, the elastic members 14 on one side are mainly stressed. And relatively speaking, the supporting leg 2 is used as a fixing piece and has higher strength. And the corresponding elastic members 14 need to be deformed, so that the elastic members 14 not less than the number of the support legs 2 need to be provided for ensuring the elastic strength.

On the basis of the above solution, in one embodiment of the present invention, the elastic member 14 is a spring or a rubber member, a top portion of the spring or the rubber member is connected to the lower end surface of the pressing plate 12, and a bottom portion of the spring or the rubber member is connected to the inner bottom surface of the base cover 11. In the scheme, the elastic part 14 is a spring or a rubber part, and the top of the spring or the rubber part is connected to the lower end face of the pressure plate 12, and the bottom of the spring or the rubber part is connected to the inner bottom face of the base cover 11. Mainly, an elastic force in the axial direction (vertical direction) of the spring or the rubber member is provided, and although not only a pressure force in the axial direction is generated during the swing of the pressure plate 12, the deformation of the plurality of springs or the rubber members can also provide the above-mentioned deformation elastic force generated in the radial direction.

In a more advantageous embodiment of the present invention, as shown in fig. 5, the elastic member 14 is a U-shaped elastic piece, a U-shaped bent end 14A of the U-shaped elastic piece is close to the shaft sleeve 13, and a U-shaped open end 14B is directed toward the radial outside. The ends of the U-shaped arm 141 of the elastic member 14 are connected to the lower end surface of the pressing plate 12 and the inner bottom surface of the base cover 11, respectively. In this embodiment, the elastic member 14 is a U-shaped elastic piece, and the ends of the U-shaped arm 141 of the elastic member 14 are respectively connected to the lower end surface of the pressing plate 12 and the inner bottom surface of the base cover 11. The U-shaped elastic piece not only provides deformation elasticity in the vertical direction, but also provides deformation elasticity in the radial direction. When the pressing plate 12 swings, the pressing track of the pressing plate 12 to the U-shaped elastic piece is arc-shaped (can be decomposed into an axial part and a radial part). In this process, the upper U-arm 141 of the U-shaped spring is moved to accommodate the arc, and the spring force provided is also suitable. Further, from the U-shaped bent end 14A to the U-shaped open end 14B, the distance between the two U-shaped arms 141 of the U-shaped elastic piece gradually increases. The ends of the U-shaped arm 141 of the elastic member 14 are connected to the edge of the lower end surface of the pressing plate 12 and the edge of the inner bottom surface of the base cover 11, respectively. In this technical solution, because the swing amplitude of the edge of the pressing plate 12 is the largest, the end of the U-shaped arm 141 of the elastic member 14 is connected to the edge of the lower end surface of the pressing plate 12 and the edge of the inner bottom surface of the base cover 11, respectively, so as to achieve a better elastic twisting effect. Further, the distance between the two U-shaped arms 141 of the U-shaped elastic piece is gradually increased. In the process of increasing the variable of the U-shaped elastic sheet, the contact area between the U-shaped elastic sheet and the pressing plate 12 is gradually increased, and the U-shaped elastic sheet is more stable for the elastic support of the pressing plate 12.

Example 2:

this embodiment relates to a seat comprising a rocking chair foot as described in embodiment 1. The lower end part of the upright post or the air rod of the chair is connected with the shaft sleeve in the swinging chair leg, the shaft sleeve can be set into a taper sleeve as in the prior scheme, and the lower end part of the upright post or the air rod of the chair is pressed in the taper hole of the shaft sleeve. After the rocking chair leg is adopted, the rocking amplitude and the rocking smoothness of the chair are not limited, the rocking effect is obvious, and the use comfort level is improved.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above 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 embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.

Claims (9)

1. A rocking chair leg comprises a foot rest base (1) used for connecting an upright post to support a chair, and a plurality of supporting legs (2) connected to the foot rest base (1) and arranged around the outer circumference of the foot rest base (1); the method is characterized in that: the foot rest base (1) comprises a base cover (11) and a connecting assembly which is embedded in a base cavity of the base cover (11) and is used for connecting a stand column; the connecting assembly comprises a pressing plate (12) and a shaft sleeve (13) connected to the middle part of the pressing plate (12); the pressing plate (12) is connected with the base cover (11) below the pressing plate through a plurality of elastic pieces (14), the elastic pieces (14) are arranged around the shaft sleeve (13) in a circumferential regular mode, and two end parts of each elastic piece (14) are connected to the pressing plate (12) and the base cover (11) respectively; when the shaft sleeve (13) swings due to external force, the pressing plate (12) acts on the elastic piece (14).

2. The rocking chair leg as claimed in claim 1, wherein: a deformation gap is reserved between the outer edge of the pressing plate (12) and the inner side wall surface of the base cover (11), and the inner side wall surface of the base cover (11) is limited in the swinging range of the pressing plate (12).

3. The rocking chair leg as claimed in claim 1, wherein: the number of the elastic pieces (14) is not less than that of the support legs (2).

4. The rocking chair leg as claimed in claim 1, wherein: the elastic piece (14) is a spring or a rubber piece, the top of the spring or the rubber piece is connected to the lower end face of the pressing plate (12), and the bottom of the spring or the rubber piece is connected to the inner bottom face of the base cover (11).

5. The rocking chair leg as claimed in claim 1, wherein: the elastic piece (14) is a U-shaped elastic piece, a U-shaped bending end (14A) of the U-shaped elastic piece is close to the shaft sleeve (13), and a U-shaped opening end (14B) faces to the radial outer side; the ends of the U-shaped arm (141) of the elastic element (14) are respectively connected with the lower end surface of the pressure plate (12) and the inner bottom surface of the base cover (11).

6. The rocking chair leg as claimed in claim 5, wherein: from the U-shaped bent end (14A) to the U-shaped opening end (14B), the distance between two U-shaped arms (141) of the U-shaped elastic sheet is gradually increased; the ends of the U-shaped arm (141) of the elastic element (14) are respectively connected to the edge of the lower end surface of the pressure plate (12) and the edge of the inner bottom surface of the base cover (11).

7. A rocking chair foot as claimed in any one of claims 1 to 6, wherein: the base cover (11) comprises a cover body (15) and a cover (16) connected to the cover body (15); the cover cap (16) is provided with a first through hole (161) which corresponds to the shaft sleeve (13) and has a hole diameter larger than the inner diameter of the shaft sleeve (13).

8. The rocking chair leg as claimed in claim 7, wherein: a backing plate (17) is fixedly connected inside the cover body (15), the backing plate (17) is positioned below the pressure plate (12), and two end parts of the elastic piece (14) are respectively connected to the pressure plate (12) and the backing plate (17); the middle part of backing plate (17) is equipped with second through-hole (171), and during second through-hole (171) of backing plate (17) were worn to locate in axle sleeve (13), the cover was equipped with rubber packing ring (172) on second through-hole (171) of backing plate (17), and the internal diameter of rubber packing ring (172) is greater than axle sleeve (13) external diameter.

9. A seat, characterized by: a rocking chair foot according to any one of claims 1 to 8.

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