CN223041166U - A chassis structure and a seat - Google Patents

Abstract

The utility model discloses a chassis structure and a seat, wherein the chassis structure comprises: a shell component, a first elastic component and a second elastic component, wherein the shell component comprises a bottom shell, a first seesaw and a second seesaw, wherein the first seesaw is connected to the rear side of the bottom shell and can rotate up and down, and the second seesaw is connected to the front side of the bottom shell and can rotate up and down; the first elastic component comprises a first elastic member, wherein one end of the first elastic member is connected to the bottom shell, and the other end is connected to the first seesaw; the second elastic component comprises a second elastic member, wherein one end of the second elastic member is connected to the bottom shell, and the other end is connected to the second seesaw, wherein the chassis structure provided by the utility model embodiment, wherein the first seesaw cooperates with the first elastic component, and the second seesaw cooperates with the second elastic component, can effectively absorb the impact when the user sits down, thereby improving the user's experience.

Description

Chassis structure and seat

Technical Field

The utility model relates to the technical field of seats, in particular to a chassis structure and a seat.

Background

With the continual improvement of modern office environments and the popularization of ergonomic concepts, office chairs and ergonomic chairs have become indispensable equipment for modern offices. The seat is designed to adapt to the natural curve of human body and reduce the fatigue and damage caused by sitting for a long time. However, in practical applications, the chassis structure of many office chairs and ergonomic chairs has a problem of too hard material, so that a user can feel obvious impact in sitting down instantly, and the existing chassis structure and cushion design often cannot fully consider the problem of impact absorption in sitting down instantly, resulting in poor sitting feel of the user.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the chassis structure provided by the utility model can effectively absorb the impact of a user when sitting down, and improves the use experience of the user.

In a second aspect, the utility model also provides a seat using the chassis structure.

According to an embodiment of the first aspect of the present utility model, there is provided a chassis structure, including:

the shell assembly comprises a bottom shell, a first rocker and a second rocker, wherein the first rocker is connected to the rear side of the bottom shell and can rotate up and down, and the second rocker is connected to the front side of the bottom shell and can rotate up and down;

The first elastic component comprises a first elastic piece, one end of the first elastic piece is connected with the bottom shell, and the other end of the first elastic piece is connected with the first seesaw;

The second elastic component comprises a second elastic piece, one end of the second elastic piece is connected with the bottom shell, and the other end of the second elastic piece is connected with the second seesaw.

According to the chassis structure provided by the embodiment of the first aspect of the utility model, at least the following beneficial effects are that the first and second rotatable wanes are respectively arranged on the rear side and the front side of the bottom shell, and are matched with the elastic supports of the first and second elastic assemblies, so that when a user sits down, the first and second wanes can dynamically rotate and adjust angles according to actual pressure, the bottom shell, the first and second wanes of the shell assembly form radians conforming to natural curves of human bodies, ergonomic sitting posture support is provided, physical fatigue and potential damage caused by sitting postures for a long time are reduced, and the first and second elastic assemblies can also generate elasticity through deformation, so that impact during sitting down can be effectively absorbed, sitting feeling of the user is remarkably enhanced, and use experience of the user is improved.

According to the chassis structure provided by the embodiment of the first aspect of the utility model, the chassis structure further comprises a first control assembly, the first control assembly comprises a first control wire, a first control piece and a first control seat, the first control seat is connected to the middle part of the first rocker and is positioned at one end of the first rocker, which is close to the bottom shell, the first control seat is provided with a gear adjusting groove, the first control piece is connected to the bottom shell and can slide towards or away from the first control seat, the first control wire is connected to the first control piece, and the first control wire is configured to drive the first control piece to slide so that the first control piece is clamped into or withdrawn from the gear adjusting groove.

According to the chassis structure provided by the embodiment of the first aspect of the present utility model, the first control seat is provided with a plurality of gear adjusting grooves, and the plurality of gear adjusting grooves are arranged at intervals along the rotation direction of the first rocker.

According to the chassis structure provided by the embodiment of the first aspect of the utility model, the first elastic piece is a glass fiber piece, one end of the first elastic piece is connected to one end of the bottom shell, which is far away from the first warping plate, the other end of the first elastic piece is connected to one end of the first warping plate, which is far away from the bottom shell, the chassis structure further comprises a first adjusting assembly, the first adjusting assembly comprises a driving mechanism and a supporting sliding block, the supporting sliding block is arranged below the first elastic piece, the upper end of the supporting sliding block is abutted against the lower end of the first elastic piece, the supporting sliding block can slide along the length direction of the first elastic piece, and the driving mechanism is configured to drive the supporting sliding block to slide along the length direction of the first elastic piece.

According to the chassis structure provided by the embodiment of the first aspect of the utility model, the driving mechanism comprises a driving wheel, a gear transmission mechanism and a threaded rod which are sequentially connected, the threaded rod is rotationally connected to the chassis and is arranged along the length direction of the first elastic piece, the supporting sliding block is in threaded connection with the threaded rod, the driving wheel can rotate to drive the gear transmission mechanism to rotate, the gear transmission mechanism can drive the threaded rod to rotate, and the threaded rod can drive the supporting sliding block to slide along the length direction of the first elastic piece.

According to the chassis structure provided by the embodiment of the first aspect of the utility model, the chassis structure further comprises a second control assembly, the second control assembly comprises a second control wire, a second control piece and a second control seat, the second control seat is connected to the second rocker, a clamping groove is formed between the second control seat and the second rocker, the second control piece is connected to the bottom shell in a sliding manner, and the second control wire is configured to drive the second control piece to slide so that the second control piece can be clamped in or withdrawn from the clamping groove.

According to the chassis structure provided by the embodiment of the first aspect of the present utility model, the first elastic component includes two first elastic members, and the two first elastic members are respectively disposed on the left and right sides of the bottom shell.

According to the chassis structure provided by the embodiment of the first aspect of the present utility model, the second elastic component includes two second elastic members, the second elastic members are springs, and the two springs are separately disposed on the left and right sides of the bottom shell.

According to a second aspect of the utility model, a seat is provided comprising a chassis structure according to the first aspect of the utility model, which has all the advantages of the chassis structure.

According to a second aspect of the present utility model, a seat is provided, which includes a seat back connected to a rear side of the first rocker.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is an overall schematic view of a chassis structure provided by an embodiment of the present utility model;

FIG. 2 is a schematic view of the internal structure of a chassis structure according to an embodiment of the present utility model;

FIG. 3 is a schematic view illustrating an internal structure of a chassis structure according to another embodiment of the present utility model;

FIG. 4 is a schematic view of a chassis structure according to another embodiment of the present utility model;

fig. 5 is a schematic structural view of a seat according to an embodiment of the present utility model.

The reference numerals are as follows:

Housing assembly 100, bottom case 110, first rocker 120, second rocker 130;

The first elastic component 200, the first elastic piece 210, the first base 220, the first connecting seat 230;

The second elastic assembly 300, the second elastic member 310, the second base 320, the second connecting seat 330;

First control assembly 400, first control line 410, first control member 420, first control seat 430, and gear position adjustment slot 431;

the first adjusting assembly 500, a driving mechanism 510, a driving wheel 511, a gear transmission mechanism 512, a threaded rod 513, a supporting slider 520;

The second control assembly 600, a second control wire 610, a second control member 620, a second control seat 630, a detent 640;

A control handle 700;

A seat assembly 800, a seat cushion 810, a first link 820, a second link 830;

Chair 1000, armrest 1100, chair back 1200.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions, such as directions of up, down, left, right, etc., are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the utility model.

In the description of the present utility model, the description of the first and second is only for the purpose of distinguishing technical features, and should not be construed as indicating or implying relative importance or implying the number of technical features indicated or the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

The embodiment of the present utility model proposes a chassis structure, which is applied to a seat 1000, and the specific structure and function of the chassis structure provided by the embodiment of the present utility model will be further described below with reference to the text and the accompanying drawings.

Referring to fig. 1 to 4, the chassis structure provided in the first aspect of the present utility model includes a housing assembly 100, a first elastic assembly 200 and a second elastic assembly 300, where the housing assembly 100 is matched with the first elastic assembly 200 and the second elastic assembly 300, so as to effectively absorb impact when a user sits down, improve sitting feel of the user, and improve use experience of the user.

Referring to fig. 1 to 3, in some embodiments, the housing assembly 100 includes a bottom case 110, a first rocker 120 and a second rocker 130, the bottom case 110 is provided with a front shaft and a rear shaft, the first rocker 120 is connected to the rear side of the bottom case 110 and can rotate up and down along the rear shaft, the second rocker 130 is connected to the front side of the bottom case 110 and can rotate up and down along the front shaft, and in use, the first rocker 120 and the second rocker 130 can dynamically rotate and adjust angles according to actual pressure, so that the bottom case 110, the first rocker 120 and the second rocker 130 of the housing assembly 100 form radians conforming to natural curves of human bodies, ergonomic sitting posture support is provided, and physical fatigue and potential damage caused by long-time sitting postures are reduced.

It can be appreciated that the housing assembly 100 further includes a face case disposed on the upper sides of the bottom case 110, the first rocker 120, and the second rocker 130, and forming a receiving cavity with the bottom case 110, the first rocker 120, and the second rocker 130, which can receive a plurality of components such as the first elastic assembly 200, the second elastic assembly 300, and the like.

Referring to fig. 2 and 3, in some embodiments, the first elastic component 200 includes a first elastic member 210, the bottom case 110 is provided with a first base 220, the first rocker 120 is provided with a first connecting seat 230, one end of the first elastic member 210 is connected to the first base 220 on the bottom case 110, and the other end is connected to the first connecting seat 230 on the first rocker 120, and the connection manner between the first elastic member 210 and the bottom case 110 and the first rocker 120 is stable and reliable.

It can be appreciated that the first elastic member 210 may be a spring, a glass fiber sheet, etc., and the end of the first elastic member 210 may be fixed on the first base 220 or the first connecting seat 230 by means of a clamping, hinging, fastening. In addition, the specific structures and shapes of the first base 220 and the first connection seat 230 may be set according to the specific connection manner.

Referring to fig. 2 and 3, in some embodiments, the second elastic component 300 includes a second elastic member 310, the bottom case 110 is provided with a second base 320, the second rocker 130 is provided with a second connecting seat 330, one end of the second elastic member 310 is connected to the second base 320 on the bottom case 110, and the other end is connected to the second connecting seat 330 on the second rocker 130, and the connection manner between the second elastic member 310 and the bottom case 110 and the second rocker 130 is stable and reliable.

It is understood that the second elastic member 310 may be a spring, a glass fiber sheet, etc., and the end of the second elastic member 310 may be fastened to the second base 320 or the second connecting seat 330 by means of a clamping, hinging, or fastening. In addition, the specific structures and shapes of the second base 320 and the second connection seat 330 may be set according to the specific connection manner.

Referring to fig. 1 to 3, in some embodiments, the chassis structure further includes a seating assembly 800, the seating assembly 800 includes a seat cushion 810, a first connection frame 820 and a second connection frame 830, the seat cushion 810 is connected with the first rocker 120 through the first connection frame 820, and is connected with the second rocker 130 through the second connection frame 830, when a user sits down, the force born by the seat cushion 810 is transferred to the first rocker 120 and the second rocker 130 through the first connection frame 820 and the second connection frame 830, the first rocker 120 and the second rocker 130 can dynamically rotate and adjust an angle according to actual pressure, so that the seat cushion 810 can fully fit the buttocks of the user, ergonomic sitting posture support is provided, physical fatigue and potential damage brought by long-time sitting postures are reduced, and the first elastic assembly 200 and the second elastic assembly 300 can also generate elastic force through deformation, so that the sitting down impact can be effectively absorbed, sitting down feeling of the user is remarkably enhanced, and the use experience of the user is improved.

Referring to fig. 2 and 3, in some embodiments, chassis structure further includes a first control assembly 400, first control assembly 400 for enabling control of the position of first rocker 120. Specifically, the first control assembly 400 includes a first control wire 410, a first control member 420 and a first control seat 430, the first control seat 430 is firmly connected to the middle position of the first rocker 120 and is located at one end of the first rocker 120 near the bottom shell 110, the first control seat 430 is provided with a gear adjusting slot 431, and the gear adjusting slot 431 cooperates with the first control member 420 to lock the angle of the first rocker 120. The first control member 420 is mounted on the bottom case 110 and is designed to be slidable toward or away from the first control seat 430. This sliding function enables the control member to be precisely caught in or withdrawn from the gear adjusting groove 431, thereby adjusting and fixing the position of the first rocker 120. In addition, to achieve convenience of control and operation, the first control wire 410 is connected to the first control member 420, and by pulling the first control wire 410, the user can easily slide the first control member 420 without directly contacting the first control member 420 itself. The design not only improves the convenience of use, but also increases the accuracy of adjustment.

In practical application, when the user needs to adjust the angle of the first rocker 120, the first control member 420 can be driven to slide on the bottom case 110 by pulling the first control wire 410. When the first control member 420 is engaged with the gear adjusting groove 431, the first rocker 120 is fixed at a corresponding angle, so as to meet the personalized requirement of the user on the chassis of the seat 1000. This design not only enhances the comfort and usability of the seat 1000, but also enhances the user's use experience.

Referring to fig. 2 and 3, in some embodiments, the first control seat 430 is provided with a plurality of gear adjusting grooves 431, and the plurality of gear adjusting grooves 431 are spaced along the rotation direction of the first rocker 120, so as to provide more adjusting options for the user to meet different sitting postures and comfort requirements. Specifically, the design of the plurality of gear adjustment grooves 431 allows the first rocker 120 to flexibly switch between a plurality of fixed angles. When the user needs to adjust the tilting angle of the first rocker 120, the first control member 420 can be driven to slide on the bottom case 110 by operating the first control wire 410 until the first control member is snapped into the appropriate gear adjusting slot 431. Since the grooves are arranged in the rotation direction of the first rocker 120, the user can select the most appropriate inclination angle according to his own habit and physical comfort. This design not only enhances the adjustment function of the seat 1000, making it more humanized and personalized, but also improves the adaptability and comfort of the seat 1000. Whether working, resting or entertaining, the user can find the most appropriate seat 1000 angle for himself by simple operation, thereby enjoying a more comfortable and healthy sitting experience.

According to the chassis structure provided by the embodiment of the first aspect of the present utility model, the first elastic member 210 is made of glass fiber, and the material has good elasticity and durability, and can effectively absorb impact and maintain stable performance for a long time. One end of the glass fiber sheet is connected to one end of the bottom case 110 far away from the first rocker 120, and the other end is connected to one end of the first rocker 120 far away from the bottom case 110. Such a layout enables the glass fiber sheet to fully exert its elastic effect when the user sits down, effectively cushioning and dispersing pressure, thereby improving the comfort of the seat 1000.

Referring to fig. 2 and 3, in some embodiments, the chassis structure further includes a first adjusting assembly 500, the first adjusting assembly 500 including a driving mechanism 510 and a supporting slider 520, the supporting slider 520 being disposed below the glass fiber sheet, and an upper end thereof abutting a lower end of the glass fiber sheet to provide stable support for the glass fiber sheet. Meanwhile, the supporting slider 520 is designed to be slidable along the length direction of the glass fiber sheet, and this feature allows the position of the supporting slider 520 to be adjusted as needed. The drive mechanism 510 is configured to drive the support slider 520 to slide. By the action of the driving mechanism 510, the supporting slider 520 can precisely slide along the length direction of the glass fiber sheet, thereby changing the bending degree and the elastic force distribution of the glass fiber sheet. This design not only provides the user with a more personalized sitting adjustment option, but also enables the seat 1000 to accommodate different user weight and sitting posture requirements.

In practical applications, the user can adjust the position of the supporting slider 520 by operating the driving mechanism 510, so as to change the elasticity of the glass fiber sheet and the sitting feel of the seat 1000. This manner of adjustment is simple and intuitive, and can significantly improve the use experience and user satisfaction of the seat 1000.

Referring to fig. 2 and 3, according to the chassis structure provided by the embodiment of the first aspect of the present utility model, the driving mechanism 510 includes a driving wheel 511, a gear transmission mechanism 512 and a threaded rod 513 sequentially connected, and these components cooperate to achieve precise control over the supporting slider 520. Specifically, the driving wheel 511 is turned by a user operation as an input end of the entire driving mechanism 510. When the driving wheel 511 rotates, it drives the gear transmission mechanism 512 to rotate. The gear train 512 acts here to increase speed, reduce force and change direction of motion, ensuring stability and efficiency of the transmission. The threaded rod 513 is a key component of the drive mechanism 510, is rotatably coupled to the chassis, and is disposed along the length of the first elastic member 210 (glass fiber sheet). This arrangement allows the rotation of the threaded rod 513 to be directly translated into linear motion of the support slider 520. The support slider 520 is screwed to the threaded rod 513, and thus, when the threaded rod 513 is rotated, the support slider 520 slides along the axial direction of the threaded rod 513, that is, the length direction of the first elastic member 210. With this design, the user can precisely control the position of the supporting slider 520 by rotating the driving wheel 511, thereby achieving adjustment of the elastic force distribution of the first elastic member 210 (glass fiber sheet). The adjustment mode is convenient and practical, the comfort and the adjustability of the seat 1000 are greatly improved, and the requirement of a user on personalized sitting feeling is met. At the same time, this mechanical transmission also ensures stability and durability of adjustment, improving the service life of the seat 1000.

Referring to fig. 2 and 3, the chassis structure provided according to the first aspect of the present utility model further includes a second control assembly 600 to enhance the control function of the second rocker 130, so as to provide a convenient and accurate way to adjust and fix the unlocking and locking of the second rocker 130, thereby meeting the personalized requirements of the user for the sitting feeling of the front end of the seat 1000. Specifically, the second control assembly 600 includes a second control wire 610, a second control member 620, and a second control seat 630, the second control seat 630 is connected to the second rocker 130, a clamping groove 640 is formed between the second control seat 630 and the second rocker 130, and the clamping groove 640 is used for receiving and fixing the second control member 620, so as to lock the position of the second rocker 130. The second control member 620 is designed to be capable of sliding on the bottom chassis 110. By sliding, the second control member 620 may be precisely snapped into or out of the detent 640, thereby enabling flexible adjustment of the position of the second rocker 130. To facilitate the user operation, the second control wire 610 is configured to enable the second control 620 to slide. The user can easily adjust the position of the second rocker 130 by pulling the control wire without directly touching the control member itself. The second control member 620 is designed to be capable of sliding on the bottom chassis 110. By sliding, the second control member 620 may be precisely snapped into or out of the detent 640, thereby enabling flexible adjustment of the second rocker 130. To facilitate the user operation, the second control wire 610 is configured to enable the second control 620 to slide. The user can easily adjust the position of the second rocker 130 by pulling the control wire without directly touching the control member itself.

It should be noted that, in practical application, when the user needs to use the rotation and buffering function of the second rocker 130, the second control member 620 can be driven to slide by operating the second control wire 610, when the control member is separated from the clamping groove 640, the second rocker 130 can freely rotate, the second rocker 130 cooperates with the second elastic assembly 300 to provide stable support and comfortable sitting feel for the user, and when the user needs to lock the second rocker 130, the second control member 620 can be driven to slide by operating the second control wire 610. When the control member is snapped into the detent 640, the second rocker 130 is fixed in place. The design not only promotes the adjusting range and the flexibility of the seat 1000, but also makes the adjusting process simpler and faster, and greatly improves the use experience of users.

Referring to fig. 2 and 3, it can be understood that the chassis structure further includes a lifting air bar (not shown in the drawings) and a wire-controlled lifting adjustment assembly, the middle portion of the bottom shell 110 is provided with a lifting air bar mounting hole, the lifting air bar is mounted in the lifting air bar mounting hole, and the wire-controlled lifting adjustment assembly is disposed in the housing assembly 100. The wire control lifting adjusting component comprises a lifting control wire, and lifting or descending of the lifting air rod can be controlled through the lifting control wire.

Referring to fig. 2 and 3, it should be noted that the chassis structure further includes two control handles 700, the two control handles 700 are separately disposed at the left and right sides of the bottom shell 110, the control handles 700 include a control sleeve and a control shaft, the control sleeve is rotatably connected to the bottom shell 110, the control shaft is disposed inside the control sleeve in a penetrating manner and is rotatable, and the first control line 410, the second control line 610, the lifting control line and the driving wheel 511 are respectively connected to the control sleeve and the control shaft of the two control handles 700, so as to facilitate the operation of a user.

Referring to fig. 2 and 3, it can be understood that the control sleeve and the control shaft of one control handle 700 are respectively provided with a fastening piece, the control sleeve of the other control handle 700 is provided with a fastening piece, the control shaft is connected with the driving wheel 511, the first control line 410 and the second control line 610 are connected to the two fastening pieces of the same handle, and the lifting control line is arranged on the fastening piece of the other handle.

Referring to fig. 2 and 3, it can be understood that the locking groove is formed on the locking member, the bottom shell 110 is provided with the locking member, and when the control sleeve or the control shaft of the control handle 700 drives the locking member to rotate, the locking groove is engaged with the locking member to fix the control sleeve or the control shaft after the locking groove is locked into the locking member. Specifically, after the fastener connected to the first control line 410 is locked into the locking member, the first control member 420 is separated from the gear adjusting groove 431, the first rocker 120 can rotate freely, and after the fastener connected to the second control line 610 is locked into the locking member, the second control member 620 is separated from the locking groove 640, and the second rocker 130 can rotate freely.

It can be appreciated that the first control assembly 400 and the second control assembly 600 are both provided with a return spring, and after the clip connected with the second control line 610 and the clip connected with the first control line 410 are separated from the locking member, the return spring can drive the corresponding clip to return through the first control line 410 and the second control line 610, so as to facilitate the next operation of the user.

Referring to fig. 2 and 3, according to the chassis structure provided by the embodiment of the first aspect of the present utility model, the first elastic assembly 200 includes two first elastic members 210, which are respectively disposed at left and right sides of the bottom chassis 110. The main advantage of this arrangement is that it provides a more balanced and stable resilient support. The first elastic members 210 on both left and right sides can simultaneously function to effectively disperse and absorb pressure from the user's body when the user sits on the seat 1000. This not only enhances the load bearing capacity of the seat 1000, but also ensures the stability of the seat 1000 during sitting or lifting by the user.

Furthermore, the arrangement of the two first elastic members 210 also helps to promote comfort and durability of the seat 1000. Since the pressure is uniformly distributed to both sides, each elastic member is subjected to relatively small pressure, which contributes to an increase in the service life thereof. Simultaneously, the elastic support of both sides can laminate user's health curve better to provide more comfortable and individualized sense of sitting.

Referring to fig. 2 and 3, according to the chassis structure provided by the embodiment of the first aspect of the present utility model, the second elastic assembly 300 includes two second elastic members 310, which are specifically selected as springs, and the two springs are disposed at left and right sides of the bottom chassis 110, respectively. The main reason for using the spring as the second elastic member 310 is its excellent elasticity and restoring ability. The springs can quickly return to their original state after being compressed or stretched, thereby ensuring consistent resilience and comfort of the seat 1000 throughout use. In addition, the spring has the advantages of simple structure, low cost and easy maintenance, which makes it an ideal choice for the elastic element. This arrangement also has significant advantages in that two springs are placed on the left and right sides of the bottom case 110. First, it helps to achieve balanced forces on the left and right sides of the seat 1000, preventing the seat 1000 from tilting or being damaged due to excessive forces on one side. Second, this arrangement also improves the overall stability and load-bearing capacity of the seat 1000, ensuring safety and comfort for the user during use.

Referring to fig. 4, a seat 1000 according to an embodiment of the second aspect of the present utility model includes a chassis structure according to an embodiment of the first aspect of the present utility model, and this enables the seat 1000 to be flexibly adjusted according to the body type and sitting posture habits of different users, since the seat 1000 adopts the chassis structure having the first rocker 120 and the second rocker 130. The independent motion design of the first rocker 120 and the second rocker 130 ensures that the seat 1000 maintains overall stability while providing personalized support. In addition, the arrangement of the spring assemblies in the seat 1000, particularly the configuration of the first and second spring members 210, 310, further enhances the comfort and durability of the seat 1000. These elastic members not only can effectively absorb and disperse impact force generated when a user sits down, but also can maintain good elastic recovery ability during long-term use, thereby extending the service life of the seat 1000.

The seat 1000 according to the second aspect of the present utility model includes the seat back 1200, and the seat back 1200 is connected to the rear side of the first rocker 120, specifically, the second rocker 130 is connected to the seat back 1200, while ensuring that the seat back 1200 can be mounted and adjusted with respect to the bottom case 110 in a stable manner.

It can be appreciated that when the user sits down, because the chair back 1200 is directly connected with the second seesaw 130, when the second seesaw 130 rotates, the chair back 1200 rotates along with the second seesaw 130, and at this time, the first seesaw 120, the second seesaw 130 and the chair back 1200 are linked with each other, so that a stronger sitting feel can be provided for the user, and the first elastic component 200 and the second elastic component 300 can generate elastic force through deformation, so that the impact during sitting down can be effectively absorbed, and the use experience of the user is improved.

Referring to fig. 4, the seat 1000 is further provided with a armrest 1100 and an armrest 1100 support, the armrest 1100 is disposed on the armrest 1100 support, the armrest 1100 support is fixed on the first rocker 120, and the armrest 1100 support can rotate along with the first rocker 120, thereby facilitating the use of the user.

Of course, the present utility model is not limited to the above-described embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present utility model, and these equivalent modifications or substitutions are included in the scope of the present utility model as defined in the appended claims.

Claims (10)

1. A chassis structure, comprising:

the shell assembly comprises a bottom shell, a first rocker and a second rocker, wherein the first rocker is connected to the rear side of the bottom shell and can rotate up and down, and the second rocker is connected to the front side of the bottom shell and can rotate up and down;

The first elastic component comprises a first elastic piece, one end of the first elastic piece is connected with the bottom shell, and the other end of the first elastic piece is connected with the first seesaw;

The second elastic component comprises a second elastic piece, one end of the second elastic piece is connected with the bottom shell, and the other end of the second elastic piece is connected with the second seesaw.

2. The chassis structure of claim 1, further comprising a first control assembly including a first control wire, a first control member, and a first control seat, the first control seat being connected to a middle portion of the first rocker and located at an end of the first rocker near the bottom case, the first control seat being provided with a gear adjustment slot, the first control member being connected to the bottom case and being capable of sliding toward or away from the first control seat, the first control wire being connected to the first control member, the first control wire being configured to be capable of driving the first control member to slide so that the first control member is engaged in or disengaged from the gear adjustment slot.

3. The chassis structure according to claim 2, wherein the first control seat is provided with a plurality of the shift position adjusting grooves, the plurality of shift position adjusting grooves being arranged at intervals in a rotation direction of the first rocker.

4. The chassis structure according to claim 1, wherein the first elastic member is a glass fiber sheet, one end of the first elastic member is connected to an end of the bottom case away from the first rocker, the other end of the first elastic member is connected to an end of the first rocker away from the bottom case, the chassis structure further comprises a first adjusting assembly, the first adjusting assembly comprises a driving mechanism and a supporting slider, the supporting slider is arranged below the first elastic member, the upper end of the supporting slider abuts against the lower end of the first elastic member, the supporting slider can slide along the length direction of the first elastic member, and the driving mechanism is configured to drive the supporting slider to slide so that the supporting slider slides along the length direction of the first elastic member.

5. The chassis structure according to claim 4, wherein the driving mechanism includes a driving wheel, a gear transmission mechanism and a threaded rod which are sequentially connected, the threaded rod is rotatably connected to the chassis and is arranged along the length direction of the first elastic member, the supporting slider is in threaded connection with the threaded rod, the driving wheel is rotated to drive the gear transmission mechanism to rotate, the gear transmission mechanism is capable of driving the threaded rod to rotate, and the threaded rod is rotated to drive the supporting slider to slide along the length direction of the first elastic member.

6. The chassis structure of claim 1, further comprising a second control assembly, the second control assembly comprising a second control wire, a second control member, and a second control seat, the second control seat being connected to the second rocker, a detent being formed between the second control seat and the second rocker, the second control member being slidably connected to the bottom shell, the second control wire being configured to enable the second control member to slide so as to enable the second control member to be snapped into or out of the detent.

7. The chassis structure of claim 1, wherein the first elastic member includes two first elastic members, the two first elastic members being disposed on left and right sides of the bottom chassis.

8. The chassis structure of claim 1, wherein the second elastic member includes two second elastic members, the second elastic members being springs, the two springs being disposed separately on left and right sides of the bottom chassis.

9. A seat comprising a chassis structure according to any one of claims 1 to 8.

10. The seat of claim 9, comprising a seatback coupled to a rear side of the first rocker.