CN210158343U

CN210158343U - Seat chassis and seat

Info

Publication number: CN210158343U
Application number: CN201920666718.2U
Authority: CN
Inventors: 巫运福
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-08
Filing date: 2019-05-08
Publication date: 2020-03-20
Anticipated expiration: 2029-05-08

Abstract

The utility model discloses a seat chassis and seat, seat chassis includes: the base component comprises a cross beam, a left supporting arm and a right supporting arm which are respectively arranged at two ends of the cross beam; the elastic component comprises a left spring and a right spring, one end of the left spring is connected to the left supporting arm, and one end of the right spring is connected to the right supporting arm; the back of the body supporting member, back of the body supporting member includes left socle and right branch frame, left socle and right branch frame are equallyd divide and are rotated respectively and connect on the base component, the other end butt of left side spring the left socle, the other end butt of right side spring the right branch frame. The seat comprises the seat chassis. Even if a user applies a force to the backrest which deviates from the cushion or the center of the backrest, the stable connection between the backrest and the seat chassis can be maintained under the common support of the two springs, thereby improving the safety of the seat when the reclining function is used.

Description

Seat chassis and seat

Technical Field

The utility model relates to an office furniture technical field, in particular to seat chassis and seat.

Background

Along with the popularization of the health concept, people pay more and more attention to how to relieve the soreness of the waist and the back of the body caused by long-time office work, and for the reason, the chair with the inclining function is provided in the market, so that a user can drive the backrest of the chair to shake by utilizing the back of the body, and the fatigue and the soreness caused by the fact that the spine keeps the same posture for a long time are relieved.

The reclining structure for achieving the reclining function is generally implemented by using an elastic member, such as a spring, and the reclining structure is connected to the seat cushion and the backrest of the seat through both ends of the spring to provide restoring force for the reclining structure. However, in the existing tilting structure, a single spring is adopted to provide restoring force, and because the spring and the seat backrest only have a single connection stress point, the connection stability of the backrest and the seat chassis is insufficient, and in the tilting and shaking of the seat, the direction of the restoring force is easy to deviate from the set direction, so that the use experience is influenced, and the local stress of the tilting structure is abnormal, and the potential safety hazard exists.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a seat chassis, can strengthen the stability ability that backrest and seat chassis are connected.

A first aspect of the present invention provides a seat chassis, including:

the base component comprises a cross beam, a left supporting arm and a right supporting arm which are respectively arranged at two ends of the cross beam;

the elastic component comprises a left spring and a right spring, one end of the left spring is connected to the left supporting arm, and one end of the right spring is connected to the right supporting arm;

the back of the body supporting member, back of the body supporting member includes left socle and right branch frame, left socle and right branch frame are equallyd divide and are rotated respectively and connect on the base component, the other end butt of left side spring the left socle, the other end butt of right side spring the right branch frame.

Has the advantages that: the utility model discloses a first aspect provides a seat chassis, including the base component, elastic component, back of the body supporting member, wherein elastic component is including installing respectively at the left branch brace, the left spring on the right branch brace, the right spring, a left spring and right spring are connected respectively to the left socle and the right branch brace for installing backrest, when realizing inclining and facing upward the function of seat, provide elastic restoring force simultaneously by left spring and right spring, even the user has applyed skew cushion or the central power of back to the back, under the common support of two springs, still can keep the stable connection between back and the seat chassis, thereby the security when having promoted the seat and using to incline and face upward the function.

As a further improvement of the above scheme, the locking device further comprises a locking member, wherein the locking member comprises a locking guide rail, and a left slider and a right slider which are slidably arranged along the locking guide rail, and the left slider can slide along the locking guide rail to a path where the left bracket rotates and is used for locking the rotation of the left bracket; the right sliding block can slide to the rotating path of the right bracket along the locking guide rail and is used for locking the rotation of the right bracket. Through setting up the locking component, realize opening or closing of control seat function of leaning on, can close when the user need not lean on the function, avoid the user to lead to the unstable emergence of focus to empty because of the maloperation, promoted the security performance of seat.

As a further improvement of the above scheme, the vehicle-mounted locking device further comprises a control component, wherein the control component comprises a left transmission component, a right transmission component, a guide groove and a control rod which can be arranged in the guide groove in a sliding manner, the extending direction of the guide groove is the same as that of the locking guide rail, a left connecting part and a right connecting part are arranged on the control rod at intervals along the axial direction, the left connecting part is connected with a left slider through the left transmission component and drives the left slider to slide in opposite directions with the control rod, and the right connecting part is connected with a right slider through the right transmission component and drives the right slider to slide in the same direction with the control rod. When the control rod is pulled or pushed to slide along the guide groove, the left sliding block and the right sliding block can be simultaneously driven to simultaneously enter the rotating paths of the left bracket and the right bracket along the locking guide rail, so that the rotation of the left bracket and the right bracket can be simultaneously locked; and the left sliding block and the right sliding block can be driven to be away from the rotating path of the left bracket and the right bracket to unlock. The control rod can be locked by pushing or pulling, so that the operation steps of the user for locking the tilting function are simplified, and the user experience is improved.

As a further improvement of the above scheme, the left transmission assembly comprises a lever structure rotatably connected to the cross beam, one end of the lever structure is movably connected to the left connecting part, and the other end of the lever structure is movably connected to the left slider; and one end of the connecting rod is movably connected with the right connecting part, and the other end of the connecting rod is movably connected with the right sliding block. The left sliding block and the right sliding block are driven by one control rod to move oppositely through the lever structure and the connecting rod ingeniously, and the easy operation degree of a user is improved.

As a further improvement of the above scheme, a left accommodating cavity is formed in the left supporting arm, and one end of the left spring is connected in the left accommodating cavity; the inside right side that is equipped with of right branch arm holds the chamber, the one end of right spring is connected the right side holds the intracavity. Set up the left side that is used for holding left spring, right spring on left branch arm and the right branch arm and hold the chamber on the right side, promote the clean and tidy nature and the wholeness of the whole outward appearance of seat chassis.

As a further improvement of the above scheme, a left spring mounting seat is arranged in the left accommodating cavity, the left spring mounting seat comprises a left sliding rod fixedly connected with the left accommodating cavity and a left sliding sleeve slidably sleeved on the left sliding rod along the left sliding rod, the left spring is sleeved on the outer side of the left sliding sleeve, one end of the left spring is connected with the left accommodating cavity through the left sliding rod, and the other end of the left spring is connected with the sliding sleeve; the right side holds the intracavity and is provided with right spring mount pad, right spring mount pad include with the right side holds the right slide bar of chamber rigid coupling and can follow right slide bar cover is established with sliding right sliding sleeve on the slide bar of the right side, right spring housing is established the right sliding sleeve outside, one end is passed through right slide bar connection the chamber is held to the right side, and the other end is connected the sliding sleeve. The left spring mounting seat and the right spring mounting seat are used for guaranteeing that the left spring and the right spring keep linear motion in the stretching process, so that the swinging track of the backrest is controllable when a user uses a tilting function, and the safety of the seat is improved.

As a further improvement of the above scheme, a left limiting groove is formed in the left bracket, and a left limiting block extending into the left limiting groove is formed in the base member; the right bracket is provided with a right limiting groove, and the base component is provided with a right limiting block extending into the right limiting groove. Through left stopper, right stopper matching left spacing groove, right spacing groove, carry on spacingly to left socle, right branch frame pivoted range, the swing range of back is controllable when realizing that the user uses the function of inclining, further promotes seat security performance.

As a further improvement of the above scheme, the control rod is provided with a lifting connecting part, the control rod arranged in the guide groove can drive the lifting connecting part to rotate along the axial direction of the control rod, and the cross beam is provided with a through hole corresponding to the position of the lifting connecting part. The switch of the lifting component for controlling the lifting function of the seat is arranged in the through hole, and the control rod drives the lifting connecting part to trigger the switch of the lifting component through rotating in the guide groove along the axial direction, so that the function reuse of the control rod is realized, and the structure of the seat chassis is further simplified.

A second aspect of the present invention provides a seat, said seat comprising any of the above described seat chassis. The second aspect of the present invention therefore has all the advantages of the first aspect described above.

Drawings

The present invention will be further described with reference to the accompanying drawings and examples;

fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is a schematic view of a cross beam according to an embodiment of the present invention;

fig. 4 is a partial cross-sectional view of a left support arm according to an embodiment of the present invention;

fig. 5 is an exploded view of an embodiment of the present invention;

in the figure, a beam 110, a left supporting arm 120, a left accommodating cavity 121, a right supporting arm 130, an eccentric wheel 201, a backrest connecting part 202, a mounting hole 203, a left support 210, a left limiting groove 211, a left limiting block 212, a right support 220, a control rod 300, a supporting plate 310, a groove 311, a locking guide 410, a left sliding block 411, a connecting rod 412, a left connecting part 413, a right sliding block 421, a torsion spring 422, a right connecting part 423, a left spring 510, a left spring mounting seat 511, a left sliding rod 512, a left sliding sleeve 513, a right spring 520, a hole 600 and a lifting connecting part 610 are arranged.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

An embodiment of the first aspect of the present invention provides a seat chassis, including a base member, an elastic member, and a back support member, wherein the base member includes a cross beam 110, and a left support arm 120 and a right support arm 130 respectively disposed at two ends of the cross beam 110; the elastic member comprises a left spring 510 and a right spring 520, one end of the left spring 510 is connected to the left support arm 120, and one end of the right spring 520 is connected to the right support arm 130; back support member includes left socle 210 and right branch frame 220, left socle 210 and right branch frame 220 are equallyd divide and are do not rotated and connect on the base component, specifically, left socle 210 and right branch frame 220 all include be used for with crossbeam 110 both ends rotate the eccentric wheel structure 201 of being connected and with eccentric wheel structure 201 integrative back connecting portion 202 that sets up, back connecting portion 202 is provided with and is used for the installation hole site 203 fixed with the seatback, the other end butt of left spring 510 the eccentric wheel structure 201 of left socle 210 for install the seatback on left socle 210 and provide the restoring force, the other end butt of right spring 520 the eccentric wheel structure 201 of right branch frame 220 is used for providing the restoring force for the seatback of installing on right branch frame 220.

On the basis of the above embodiment, the locking device further comprises a locking member, the locking member comprises a locking guide rail 410, and a left slider 411 and a right slider 421 which are slidably arranged along the locking guide rail 410, and the left slider 411 can slide along the locking guide rail 410 to a path where the eccentric wheel structure 201 of the left bracket 210 rotates, so as to lock the rotation of the left bracket 210; the right slider 421 can slide along the locking rail 410 to the path of the eccentric wheel structure 201 of the right bracket 220 for locking the rotation of the right bracket 220. Through setting up the locking component, realize opening or closing of control seat function of leaning on, can close when the user need not lean on the function, avoid the user to lead to the unstable emergence of focus to empty because of the maloperation, promoted the security performance of seat.

On the basis of the above embodiment, the control device further comprises a control member, the control member comprises a left transmission assembly, a right transmission assembly, a guide groove and a control rod 300 capable of sliding along the guide groove, the extending direction of the guide groove is the same as the extending direction of the locking guide rail 410, the control rod 300 is provided with a left connecting portion 413 and a right connecting portion 423 at intervals along the axial direction, the left connecting portion 413 is connected with the left slider 411 through the left transmission assembly and drives the left slider 411 to slide opposite to the control rod 300, and the right connecting portion 423 is connected with the right slider 421 through the right transmission assembly and drives the right slider 421 to slide in the same direction as the control rod 300. When the control rod 300 is pulled or pushed to slide along the guide groove, the left slider 411 and the right slider 421 can be simultaneously driven to simultaneously enter the rotation paths of the left bracket 210 and the right bracket 220 along the locking guide rail 410, so that the rotation of the left bracket 210 and the right bracket 220 can be simultaneously locked; the left slider 411 and the right slider 421 can be driven to move away from the rotation paths of the left bracket 210 and the right bracket 220 to unlock. The tilting function can be locked only by pushing or pulling the control rod 300, so that the operation steps of the user for locking the tilting function are simplified, and the user experience is improved.

On the basis of the above embodiment, the left transmission assembly includes a lever structure rotatably connected to the cross beam 110, one end of the lever structure is movably connected to the left connection portion 413, and the other end of the lever structure is movably connected to the left slider 411; and one end of the right transmission assembly connecting rod 412 is movably connected with the right connecting part 423, and the other end of the connecting rod 412 is movably connected with the right sliding block 421. The left transmission component can also use a torsion spring 422 structure besides the lever structure, the torsion spring 422 is rotatably connected to the cross beam 110, one end of the torsion spring 422 is movably connected with the left connecting part 413, and the other end of the torsion spring 422 is movably connected with the left sliding block 411; the right transmission assembly is not limited to the form of the connecting rod 412, and may be any rigid structure with two ends movably connected to the right connecting portion 423 and the right slider 421. The movable connection can be realized by hinging and universal connection. The control rod 300 can drive the left slider 411 and the right slider 421 to move oppositely synchronously through the lever structure and the connecting rod 412, so that the easy operation degree of a user is improved.

On the basis of the above embodiment, a left accommodating cavity 121 is formed inside the left supporting arm 120, and one end of the left spring 510 is connected inside the left accommodating cavity 121; the inside right side that is equipped with of right branch arm 130 holds the chamber, the one end of right spring 520 is connected hold the intracavity in the right side. Set up on left support arm 120 and right support arm 130 and be used for holding left spring 510, the left chamber 121 and the right chamber that holds of right spring 520, promote the clean and tidy nature and the wholeness of the whole outward appearance of seat chassis.

On the basis of the above embodiment, a left spring mounting seat 511 is arranged in the left accommodating cavity 121, the left spring mounting seat 511 includes a left sliding rod 512 fixedly connected with the left accommodating cavity 121 and a left sliding sleeve 513 slidably sleeved on the left sliding rod 512 along the left sliding rod 512, the left spring 510 is sleeved outside the left sliding sleeve 513, one end of the left spring is connected to the left accommodating cavity 121 through the left sliding rod 512, and the other end of the left spring is connected to the sliding sleeve; the right side holds the intracavity and is provided with right spring 520 mount pad, right spring 520 mount pad include with the right side holds the right slide bar of chamber rigid coupling and can follow right slide bar slides ground cover and establishes right sliding sleeve on the slide bar of the right side, right spring 520 cover is established the right sliding sleeve outside, one end is passed through right sliding rod connection the chamber is held to the right side, and the other end is connected the sliding sleeve. The left spring mounting seat 511 and the right spring 520 mounting seat ensure that the left spring 510 and the right spring 520 keep linear motion in the stretching process, so that the swinging track of the backrest is controllable when a user uses a tilting function, and the safety of the seat is improved.

On the basis of the above embodiment, the left bracket 210 is provided with a left limiting groove 211, and the base member is provided with a left limiting block 212 extending into the left limiting groove 211; the right bracket 220 is provided with a right limiting groove, and the base component is provided with a right limiting block extending into the right limiting groove. Through left stopper 212, right stopper matching left spacing groove 211, right spacing groove, carry on spacingly to left socle 210, right branch frame 220 pivoted range, the swing range of back is controllable when realizing that the user uses the function of leaning on, further promotes seat security performance.

On the basis of the above embodiment, a plurality of support plates 310 are arranged on the cross beam 110 along the extending direction of the locking guide rail 410, a groove 311 is arranged above the support plates 310, the plurality of grooves 311 form the guide groove, the control rod 300 is provided with a lifting connection portion 610, the control rod 300 arranged in the guide groove can drive the lifting connection portion 610 to rotate along the axial direction of the control rod 300, and a through hole 600 is arranged on the cross beam 110 corresponding to the position of the lifting connection portion 610. The switch of the lifting component for controlling the lifting function of the seat is arranged in the through hole 600, and the control rod 300 drives the lifting connecting part 610 to trigger the switch of the lifting component through rotating along the axial direction in the guide groove, so that the function reuse of the control rod 300 is realized, and the structure of the seat chassis is further simplified. The lifting assembly is generally realized by using an air cylinder or a hydraulic cylinder, and the lifting assembly for controlling the lifting of the seat belongs to the prior art which can be realized by a person in the field, and the application is not described in more detail.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A seat pan, comprising:

2. A seat pan according to claim 1, wherein: the left sliding block and the right sliding block can slide to a rotating path of the left bracket along the locking guide rail and are used for locking the rotation of the left bracket; the right sliding block can slide to the rotating path of the right bracket along the locking guide rail and is used for locking the rotation of the right bracket.

3. A seat pan according to claim 2, wherein: still include the control component, the control component includes left transmission subassembly, right transmission subassembly, guide way and can follow the control lever that the guide way slided and sets up, the extending direction of guide way with the extending direction of locking guide rail is the same, the control lever is provided with left connecting portion and right connecting portion along the axial interval, left connecting portion connect left slider and drive left slider and control lever endwise slip through left transmission subassembly, right connecting portion connect right slider and drive right slider and control lever syntropy slip through right transmission subassembly.

4. A seat pan according to claim 3, wherein: the left transmission assembly comprises a lever structure which is rotatably connected to the cross beam, one end of the lever structure is movably connected with the left connecting part, and the other end of the lever structure is movably connected with the left sliding block; and one end of the connecting rod is movably connected with the right connecting part, and the other end of the connecting rod is movably connected with the right sliding block.

5. A seat pan according to claim 1, wherein: a left accommodating cavity is formed in the left supporting arm, and one end of the left spring is connected into the left accommodating cavity; the inside right side that is equipped with of right branch arm holds the chamber, the one end of right spring is connected the right side holds the intracavity.

6. A seat pan according to claim 5, wherein: a left spring mounting seat is arranged in the left accommodating cavity, the left spring mounting seat comprises a left sliding rod fixedly connected with the left accommodating cavity and a left sliding sleeve which is sleeved on the left sliding rod along the left sliding rod in a sliding manner, the left spring is sleeved on the outer side of the left sliding sleeve, one end of the left spring is connected with the left accommodating cavity through the left sliding rod, and the other end of the left spring is connected with the sliding sleeve; the right side holds the intracavity and is provided with right spring mount pad, right spring mount pad include with the right side holds the right slide bar of chamber rigid coupling and can follow right slide bar cover is established with sliding right sliding sleeve on the slide bar of the right side, right spring housing is established the right sliding sleeve outside, one end is passed through right slide bar connection the chamber is held to the right side, and the other end is connected the sliding sleeve.

7. A seat pan according to claim 1, wherein: the left bracket is provided with a left limiting groove, and the base component is provided with a left limiting block extending into the left limiting groove; the right bracket is provided with a right limiting groove, and the base component is provided with a right limiting block extending into the right limiting groove.

8. A seat pan according to claim 3, wherein: the lifting connecting portion are arranged on the control rod, the control rod arranged in the guide groove can drive the lifting connecting portion to rotate along the axial direction of the control rod, and the through holes are formed in the position, corresponding to the lifting connecting portion, of the cross beam.

9. A seat, characterized by: the seat comprising a seat pan according to any of claims 1 to 8.