Chassis structure and seat

Abstract

The chassis structure comprises a shell assembly, a first elastic assembly and a second elastic assembly, the shell assembly comprises a bottom shell, a first seesaw and a second seesaw, 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 assembly comprises a first elastic piece, one end of the first elastic piece is connected to the bottom shell, and the other end is connected to the first seesaw; the second elastic assembly comprises a second elastic piece, one end of the second elastic piece is connected to the bottom shell, the other end of the second elastic piece is connected to the second seesaw, according to the chassis structure provided by the embodiment of the utility model, the first seesaw is matched with the first elastic assembly, and the second seesaw is matched with the second elastic assembly, so that impact generated when a user sits down can be effectively absorbed; and the user experience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of seating furniture, and particularly relates to a chassis structure and a seat. Background Art

[0002] With the continuous improvement of the modern office environment and the popularization of the ergonomic concept, office chairs and ergonomic chairs have become indispensable equipment in modern offices. The original design intention of such seats is to adapt to the natural curves of the human body and reduce physical fatigue and injuries caused by long-term sitting postures. However, in actual applications, many chassis structures of office chairs and ergonomic chairs have the problem of too hard materials, and users will feel obvious impacts at the moment of sitting down. Moreover, the existing chassis structures and seat cushion designs often fail to fully consider the problem of impact absorption at the moment of sitting down, resulting in poor sitting sensations for users. Content of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a chassis structure that can effectively absorb the impact when a user sits down and improve the user experience.

[0004] In a second aspect, the utility model also provides a seat applying the above-mentioned chassis structure.

[0005] According to the chassis structure provided by the first aspect embodiment of the utility model, it includes:

[0006] A housing assembly, including a bottom shell, a first rocker and a second rocker. 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;

[0007] A first elastic assembly, including a first elastic member. One end of the first elastic member is connected to the bottom shell, and the other end is connected to the first rocker;

[0008] A second elastic assembly, including a second elastic member. One end of the second elastic member is connected to the bottom shell, and the other end is connected to the second rocker.

[0009] According to the chassis structure provided by the embodiment of the first aspect of the present utility model, it has at least the following beneficial effects: By respectively arranging a rotatable first rocker and a second rocker at the rear side and the front side of the bottom shell, and cooperating with the elastic support of the first elastic component and the second elastic component, when the user sits down, the first rocker and the second rocker can dynamically rotate and adjust the angle according to the actual pressure, so that the bottom shell, the first rocker and the second rocker of the housing component form an arc conforming to the natural curve of the human body, providing ergonomic sitting posture support, reducing physical fatigue and potential injuries caused by long-term sitting postures. Moreover, the first elastic component and the second elastic component can also generate elastic force through deformation, effectively absorbing the impact when sitting down, significantly enhancing the user's sitting feeling and improving the user's experience.

[0010] According to the chassis structure provided by the embodiment of the first aspect of the present utility model, it further includes a first control component. The first control component includes a first control line, a first control member and a first control seat. The first control seat is connected to the middle of the first rocker and is located at one end of the first rocker close to the bottom shell. The first control seat is provided with a gear adjustment groove. The first control member is connected to the bottom shell and can slide towards or away from the first control seat. The first control line is connected to the first control member, and the first control line is configured to be able to drive the first control member to slide so that the first control member is engaged with or disengaged from the gear adjustment groove.

[0011] 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 the gear adjustment grooves, and the plurality of the gear adjustment grooves are arranged at intervals along the rotation direction of the first rocker.

[0012] According to the chassis structure provided by the embodiment of the first aspect of the present utility model, the first elastic member is a fiberglass sheet. One end of the first elastic member is connected to the end of the bottom shell away from the first rocker, and the other end is connected to the end of the first rocker away from the bottom shell. The chassis structure further includes a first adjustment component. The first adjustment component includes a driving mechanism and a support slider. The support slider is arranged below the first elastic member and the upper end abuts against the lower end of the first elastic member. The support slider can slide along the length direction of the first elastic member, and the driving mechanism is configured to be able to drive the support slider to slide so that the support slider slides along the length direction of the first elastic member.

[0013] According to the chassis structure provided by the first aspect embodiment of the present utility model, the driving mechanism includes a driving wheel, a gear transmission mechanism, and a threaded rod connected in sequence. The threaded rod is rotatably connected to the chassis and arranged along the length direction of the first elastic member. The support slider is threadedly connected to the threaded rod. When the driving wheel rotates, it can drive the gear transmission mechanism to rotate. The gear transmission mechanism can drive the threaded rod to rotate, and the rotation of the threaded rod can drive the support slider to slide along the length direction of the first elastic member.

[0014] According to the chassis structure provided by the first aspect embodiment of the present utility model, it further includes a second control component. The second control component includes a second control line, a second control member, 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 member is slidably connected to the bottom shell. The second control line is configured to be able to drive the second control member to slide, so that the second control member can be clamped into or withdrawn from the clamping groove.

[0015] According to the chassis structure provided by the first aspect embodiment of the present utility model, the first elastic component includes two first elastic members, and the two first elastic members are respectively arranged on the left and right sides of the bottom shell.

[0016] According to the chassis structure provided by the first aspect embodiment of the present utility model, the second elastic component includes two second elastic members. The second elastic member is a spring, and the two springs are respectively arranged on the left and right sides of the bottom shell.

[0017] The seat provided by the second aspect embodiment of the present utility model includes the chassis structure as described in the first aspect embodiment of the present utility model, and the seat has all the beneficial effects of the chassis structure.

[0018] The seat provided by the second aspect embodiment of the present utility model includes a backrest, and the backrest is connected to the rear side of the first rocker.

[0019] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The following further describes the present utility model in conjunction with the drawings and embodiments, where:

[0021] Figure 1 It is the overall schematic diagram of the chassis structure provided by the embodiment of the present utility model;

[0022] Figure 2 It is the internal structure schematic diagram of the chassis structure provided by the embodiment of the present utility model;

[0023] Figure 3 Internal structure schematic diagram of the chassis structure provided by another embodiment of the present utility model;

[0024] Figure 4 Overall schematic diagram of the chassis structure provided by another embodiment of the present utility model;

[0025] Figure 5 Structure schematic diagram of the seat provided by an embodiment of the present utility model.

[0026] The attached figure reference numerals are as follows:

[0027] Housing assembly 100; bottom shell 110; first rocker 120; second rocker 130;

[0028] First elastic assembly 200; first elastic member 210; first base 220; first connection seat 230;

[0029] Second elastic assembly 300; second elastic member 310; second base 320; second connection seat 330;

[0030] First control assembly 400; first control line 410; first control member 420; first control seat 430; gear shifting adjustment groove 431;

[0031] First adjustment assembly 500; drive mechanism 510; drive wheel 511; gear transmission mechanism 512; threaded rod 513; support slider 520;

[0032] Second control assembly 600; second control line 610; second control member 620; second control seat 630; clamping groove 640;

[0033] Control handle 700;

[0034] Ride assembly 800; seat cushion 810; first connecting frame 820; second connecting frame 830;

[0035] Seat 1000; armrest 1100; backrest 1200. Detailed implementation manners

[0036] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0037] In the description of the present utility model, it should be understood that regarding the orientation description, such as the orientation or positional relationship indicated by up, down, left, right, etc., is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0038] In the description of the present utility model, if the first and second are described only for the purpose of distinguishing technical features, it should not be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features or implicitly specifying the sequence relationship of the indicated technical features.

[0039] In the description of the present utility model, unless otherwise clearly defined, terms such as setting, installation, connection, etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0040] An embodiment of the present utility model provides a chassis structure, which is applied to the seat 1000. The specific structure and function of the chassis structure provided by the embodiment of the present utility model will be further described below in conjunction with the text and the drawings.

[0041] Referring to Figures 1 to 4 , according to the chassis structure provided by the first aspect embodiment of the present utility model, it includes: a housing assembly 100, a first elastic assembly 200, and a second elastic assembly 300. The cooperation of the housing assembly 100 with the first elastic assembly 200 and the second elastic assembly 300 can effectively absorb the impact when the user sits down, improve the user's sitting feeling, and enhance the user's use experience.

[0042] Referring to Figures 1 to 3 , in some embodiments, the housing assembly 100 includes a bottom shell 110, a first rocker 120, and a second rocker 130. The bottom shell 110 is provided with a front axle and a rear axle. The first rocker 120 is connected to the rear side of the bottom shell 110 and can rotate up and down around the rear axle. The second rocker 130 is connected to the front side of the bottom shell 110 and can rotate up and down around the front axle. During use, the first rocker 120 and the second rocker 130 can dynamically rotate and adjust the angle according to the actual pressure, so that the bottom shell 110, the first rocker 120, and the second rocker 130 of the housing assembly 100 form an arc that conforms to the natural curve of the human body, providing ergonomic sitting posture support and reducing physical fatigue and potential damage caused by long-term sitting postures.

[0043] It can be understood that the housing assembly 100 further includes a front shell, which is arranged on the upper side of the bottom shell 110, the first rocker 120 and the second rocker 130, and forms a receiving cavity with the bottom shell 110, the first rocker 120 and the second rocker 130 to accommodate a plurality of components such as the first elastic component 200 and the second elastic component 300.

[0044] Referring Figure 2 and Figure 3 , in some embodiments, the first elastic component 200 includes a first elastic member 210. The bottom shell 110 is provided with a first base 220, and the first rocker 120 is provided with a first connection seat 230. One end of the first elastic member 210 is connected to the first base 220 on the bottom shell 110, and the other end is connected to the first connection seat 230 on the first rocker 120. The connection manner of the first elastic member 210 with the bottom shell 110 and the first rocker 120 is stable and reliable.

[0045] It can be understood that the first elastic member 210 can be a spring, a fiberglass sheet, etc. The end of the first elastic member 210 can be fixed to the first base 220 or the first connection seat 230 by means of clamping, hinging, buckling, etc. In addition, the specific structures and shapes of the first base 220 and the first connection seat 230 can be set according to the specific connection manner.

[0046] Referring Figure 2 and Figure 3 , in some embodiments, the second elastic component 300 includes a second elastic member 310. The bottom shell 110 is provided with a second base 320, and the second rocker 130 is provided with a second connection seat 330. One end of the second elastic member 310 is connected to the second base 320 on the bottom shell 110, and the other end is connected to the second connection seat 330 on the second rocker 130. The connection manner of the second elastic member 310 with the bottom shell 110 and the second rocker 130 is stable and reliable.

[0047] It can be understood that the second elastic member 310 can be a spring, a fiberglass sheet, etc. The end of the second elastic member 310 can be fixed to the second base 320 or the second connection seat 330 by means of clamping, hinging, buckling, etc. In addition, the specific structures and shapes of the second base 320 and the second connection seat 330 can be set according to the specific connection manner.

[0048] Referring Figures 1 to 3, in some embodiments, the chassis structure further includes a seating component 800. The seating component 800 includes a seat cushion 810, a first connecting frame 820, and a second connecting frame 830. The seat cushion 810 is connected to the first rocker 120 through the first connecting frame 820 and connected to the second rocker 130 through the second connecting frame 830. When a user sits down, the force borne by the seat cushion 810 is transmitted to the first rocker 120 and the second rocker 130 through the first connecting frame 820 and the second connecting frame 830. The first rocker 120 and the second rocker 130 can rotate dynamically and adjust the angle according to the actual pressure, so that the seat cushion 810 can fully fit the user's buttocks, providing ergonomic sitting posture support, reducing physical fatigue and potential injuries caused by long-term sitting postures. Moreover, the first elastic component 200 and the second elastic component 300 can also generate elastic force through deformation, which can effectively absorb the impact when sitting down, significantly enhancing the user's sitting feeling and improving the user's experience.

[0049] Referring to Figure 2 and Figure 3 , in some embodiments, the chassis structure further includes a first control component 400. The first control component 400 is used to control the position of the first rocker 120. Specifically, the first control component 400 includes a first control line 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 close to the bottom shell 110. The first control seat 430 is provided with a gear adjustment groove 431, and the gear adjustment groove 431 cooperates with the first control member 420 to lock the angle of the first rocker 120. The first control member 420 is installed on the bottom shell 110 and is designed to slide towards or away from the first control seat 430. This sliding function enables the control member to accurately engage or disengage from the gear adjustment groove 431, thereby adjusting and fixing the position of the first rocker 120. In addition, to achieve the convenience of control and operation, the first control line 410 is connected to the first control member 420. By pulling the first control line 410, the user can easily drive the first control member 420 to slide without directly contacting the first control member 420 itself. This design not only improves the convenience of use but also increases the accuracy of adjustment.

[0050] In practical applications, when the user needs to adjust the angle of the first rocker 120, simply by pulling the first control line 410, the first control member 420 can be driven to slide on the bottom shell 110. When the first control member 420 engages the gear adjustment groove 431, the first rocker 120 will be fixed at the corresponding angle, thus meeting the user's personalized needs for the chassis of the seat 1000. This design not only improves the comfort and practicality of the seat 1000 but also enhances the user's experience.

[0051] Referring to Figure 2and Figure 3 In some embodiments, the first control seat 430 is provided with a plurality of gear adjustment slots 431, and the plurality of gear adjustment slots 431 are arranged at intervals along the rotation direction of the first rocker 120, providing the user with more adjustment options to meet different sitting postures and comfort requirements. Specifically, the design of the plurality of gear adjustment slots 431 enables the first rocker 120 to flexibly switch between a plurality of fixed angles. When the user needs to adjust the tilt angle of the first rocker 120, the first control member 420 can be driven to slide on the bottom shell 110 by operating the first control line 410 until it is stuck in a suitable gear adjustment slot 431. Since these slots are arranged along the rotation direction of the first rocker 120, the user can select the most suitable tilt angle according to his own habits and body comfort. This design not only enhances the adjustment function of the seat 1000, making it more humane and personalized, but also improves the adaptability and comfort of the seat 1000. Whether it is work, rest or entertainment, the user can find the most suitable angle of the seat 1000 for himself through simple operation, so as to enjoy a more comfortable and healthy sitting experience.

[0052] According to the chassis structure provided by the embodiment of the first aspect of the utility model, the first elastic member 210 is made of a glass fiber sheet, which has good elasticity and durability, can effectively absorb impact and maintain stable performance for a long time. One end of the glass fiber sheet is connected to the end of the bottom shell 110 away from the first rocker 120, and the other end is connected to the end of the first rocker 120 away from the bottom shell 110. Such a layout allows the glass fiber sheet to fully exert its elastic effect when the user sits down, effectively buffering and dispersing pressure, thereby improving the comfort of the seat 1000.

[0053] Reference Figure 2 and Figure 3 In some embodiments, the chassis structure further includes a first adjustment component 500, which includes a driving mechanism 510 and a support slider 520. The support slider 520 is disposed below the fiberglass sheet, and its upper end abuts against the lower end of the fiberglass sheet to provide stable support for the fiberglass sheet. At the same time, the support slider 520 is designed to be able to slide along the length direction of the fiberglass sheet. This feature enables the position of the support slider 520 to be adjusted as needed. The driving mechanism 510 is configured to be able to drive the support slider 520 to slide. Through the action of the driving mechanism 510, the support slider 520 can slide precisely along the length direction of the fiberglass sheet, thereby changing the bending degree and elastic force distribution of the fiberglass sheet. This design not only provides users with more personalized sitting adjustment options, but also enables the seat 1000 to adapt to the weight and sitting posture requirements of different users.

[0054] In practical applications, users can adjust the position of the support slider 520 by operating the drive mechanism 510, thereby changing the elasticity of the fiberglass sheet and the sitting feeling of the seat 1000. This adjustment method is both simple and intuitive, and can significantly improve the use experience and user satisfaction of the seat 1000.

[0055] Referring to Figure 2 and Figure 3 , according to the chassis structure provided by the first aspect embodiment of the present invention, the drive mechanism 510 includes a drive wheel 511, a gear transmission mechanism 512, and a threaded rod 513 that are connected in sequence. These components work together to achieve precise control of the support slider 520. Specifically, the drive wheel 511 serves as the input end of the entire drive mechanism 510 and rotates through the operation of the user. When the drive wheel 511 rotates, it drives the gear transmission mechanism 512 to rotate. The gear transmission mechanism 512 plays a role in increasing speed, reducing force, and changing the direction of motion here, ensuring the stability and efficiency of the transmission. The threaded rod 513 is a key component of the drive mechanism 510. It is rotatably connected to the chassis and arranged along the length direction of the first elastic member 210 (fiberglass sheet). This arrangement enables the rotation of the threaded rod 513 to be directly converted into the linear motion of the support slider 520. The support slider 520 is threadedly connected to the threaded rod 513. Therefore, when the threaded rod 513 rotates, the support slider 520 will slide along the axial direction of the threaded rod 513, that is, the length direction of the first elastic member 210. Through this design, users can precisely control the position of the support slider 520 by rotating the drive wheel 511, thereby realizing the adjustment of the elastic force distribution of the first elastic member 210 (fiberglass sheet). This adjustment method is both convenient and practical, greatly improving the comfort and adjustability of the seat 1000 and meeting the user's needs for personalized sitting feelings. At the same time, this mechanical transmission method also ensures the stability and durability of the adjustment, improving the service life of the seat 1000.

[0056] Referring to Figure 2 and Figure 3, according to the chassis structure provided by the first aspect embodiment of the present utility model, it further includes a second control assembly 600 to enhance the control function of the second rocker 130, aiming to provide a convenient and precise way to adjust and fix the unlocking and locking of the second rocker 130, so as to meet the personalized needs of users for the sitting feeling at the front end of the seat 1000. Specifically, the second control assembly 600 includes a second control line 610, a second control member 620, and a second control seat 630. The second control seat 630 is connected to the second rocker 130, and a clamping groove 640 is formed between the second control seat 630 and the second rocker 130. The clamping groove 640 is used to receive and fix the second control member 620, thereby realizing the locking of the position of the second rocker 130. The second control member 620 is designed to be able to slide on the bottom shell 110. By sliding, the second control member 620 can accurately engage or disengage from the clamping groove 640, thereby realizing the flexible adjustment of the position of the second rocker 130. For the convenience of user operation, the second control line 610 is configured to be able to drive the second control member 620 to slide. The user only needs to pull the control line to easily adjust the position of the second rocker 130 without directly contacting the control member itself. The second control member 620 is designed to be able to slide on the bottom shell 110. By sliding, the second control member 620 can accurately engage or disengage from the clamping groove 640, thereby realizing the flexible adjustment of the second rocker 130. For the convenience of user operation, the second control line 610 is configured to be able to drive the second control member 620 to slide. The user only needs to pull the control line to easily adjust the position of the second rocker 130 without directly contacting the control member itself.

[0057] It should be noted that the second control assembly 600 can lock or unlock the second rocker 130. In practical applications, when the user needs to use the rotation and buffering functions of the second rocker 130, the second control line 610 can be operated to drive the second control member 620 to slide. When the control member disengages from the clamping groove 640, the second rocker 130 can rotate freely. The second rocker 130 and the second elastic component 300 can cooperate to provide stable support and a comfortable sitting feeling for the user; when the user needs to lock the second rocker 130, the second control line 610 can be operated to drive the second control member 620 to slide. When the control member engages in the clamping groove 640, the second rocker 130 will be fixed in the corresponding position. This design not only improves the adjustment range and flexibility of the seat 1000, but also makes the adjustment process simpler and faster, greatly improving the user experience.

[0058] Refer to Figure 2 and Figure 3, It can be understood that the chassis structure further includes a lifting air rod (not shown in the figure) and a wire-controlled lifting adjustment component. A lifting air rod mounting hole is provided in the middle of the bottom shell 110, and the lifting air rod is mounted in the lifting air rod mounting hole. The wire-controlled lifting adjustment component is arranged in the housing component 100. The wire-controlled lifting adjustment component includes a lifting control wire, and the lifting or lowering of the lifting air rod can be controlled through the lifting control wire.

[0059] Referring to Figure 2 and Figure 3 , it should be noted that the chassis structure further includes two control handles 700. The two control handles 700 are respectively arranged on the left and right sides of the bottom shell 110. The control handle 700 includes a control sleeve and a control shaft. The control sleeve is rotatably connected to the bottom shell 110. The control shaft passes through the inside of the control sleeve and can rotate. The first control wire 410, the second control wire 610, the lifting control wire, 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 the user.

[0060] Referring to Figure 2 and Figure 3 , it can be understood that snap members are provided on both the control sleeve and the control shaft of one of the control handles 700, and a snap member is provided on the control sleeve of the other control handle 700. The control shaft is connected to the driving wheel 511. The first control wire 410 and the second control wire 610 are connected to the two snap members of the same handle, and the lifting control wire is connected to the snap member of the other handle.

[0061] Referring to Figure 2 and Figure 3 , it can be understood that a locking groove is provided on the snap member, and a locking member is provided on the bottom shell 110. When the control sleeve or the control shaft of the control handle 700 drives the snap member to rotate so that the locking groove is engaged with the locking member, the cooperation between the locking groove and the locking member can fix the control sleeve or the control shaft. Specifically, when the snap member connected to the first control wire 410 is engaged with the locking member, the first control member 420 is separated from the gear adjustment groove 431, and the first rocker 120 can rotate freely; when the snap member connected to the second control wire 610 is engaged with the locking member, the second control member 620 can be separated from the positioning groove 640, and the second rocker 130 can rotate freely.

[0062] It can be understood that both the first control component 400 and the second control component 600 are provided with return springs. When the snap member connected to the second control wire 610 and the snap member connected to the first control wire 410 are separated from the locking member, the return springs can drive the corresponding snap members to reset through the first control wire 410 and the second control wire 610, so as to facilitate the next operation of the user.

[0063] Referring to Figure 2 and Figure 3, according to the chassis structure provided by the first aspect embodiment of the present utility model, the first elastic component 200 includes two first elastic members 210, and these two elastic members are respectively arranged on the left and right sides of the bottom shell 110. The main advantage of this layout is that it provides more balanced and stable elastic support. When a user sits on the seat 1000, the first elastic members 210 on both sides can function simultaneously, effectively dispersing and absorbing the pressure from the user's body. This not only enhances the load-bearing capacity of the seat 1000 but also ensures the stability of the seat 1000 during the process of the user sitting down or getting up.

[0064] In addition, the configuration of the two first elastic members 210 also helps to improve the comfort and durability of the seat 1000. Since the pressure is evenly distributed on both sides, the pressure borne by each elastic member is relatively small, which helps to extend its service life. At the same time, the elastic support on both sides can better conform to the user's body curve, thus providing a more comfortable and personalized sitting feeling.

[0065] Refer to Figure 2 and Figure 3 , according to the chassis structure provided by the first aspect embodiment of the present utility model, the second elastic component 300 includes two second elastic members 310, and these elastic members are specifically selected as springs, and these two springs are respectively arranged on the left and right sides of the bottom shell 110. The main reason for using springs as the second elastic members 310 is their excellent elasticity and recovery ability. Springs can quickly return to their original state after being compressed or stretched, thus ensuring that the seat 1000 always maintains consistent elasticity and comfort during use. In addition, springs also have the advantages of simple structure, low cost and easy maintenance, which makes them an ideal choice for elastic elements. Placing the two springs on the left and right sides of the bottom shell 110 respectively, this layout also has significant advantages. First of all, it helps to achieve balanced force on both sides of the seat 1000, preventing the seat 1000 from tilting or being damaged due to excessive force on one side. Secondly, this layout can also improve the overall stability and load-bearing capacity of the seat 1000, ensuring the safety and comfort of the user during use.

[0066] Refer to Figure 4, the seat 1000 provided by the second aspect embodiment of the present utility model includes a chassis structure as in the first aspect embodiment of the present utility model. Since the seat 1000 adopts a chassis structure with a first rocker 120 and a second rocker 130, the seat 1000 can be flexibly adjusted according to the body shapes and sitting postures of different users. The independent movement design of the first rocker 120 and the second rocker 130 ensures that the seat 1000 can maintain overall stability while providing personalized support. In addition, the layout of the elastic components in the seat 1000, especially the configuration of the first elastic member 210 and the second elastic member 310, further enhances the comfort and durability of the seat 1000. These elastic members can not only effectively absorb and disperse the impact force generated when the user sits down, but also maintain good elastic recovery ability during long-term use, thereby extending the service life of the seat 1000.

[0067] The seat 1000 provided by the second aspect embodiment of the present utility model includes a backrest 1200. The backrest 1200 is connected to the rear side of the first rocker 120. Specifically, the second rocker 130 is connected to the backrest 1200, while ensuring that the backrest 1200 can be installed and adjusted relative to the bottom shell 110 in a stable manner.

[0068] It can be understood that when the user sits down, since the backrest 1200 is directly connected to the second rocker 130, when the second rocker 130 rotates, the backrest 1200 will rotate accordingly. At this time, the first rocker 120, the second rocker 130, and the backrest 1200 are interlocked with each other, so as to provide a strong sitting feeling for the user. Moreover, the first elastic component 200 and the second elastic component 300 can also generate elastic force through deformation, which can effectively absorb the impact when sitting down and improve the user experience.

[0069] Refer to Figure 4 , the seat 1000 is also provided with an armrest 1100 and an armrest 1100 bracket. The armrest 1100 is arranged on the armrest 1100 bracket, and the armrest 1100 bracket is fixed on the first rocker 120. The armrest 1100 bracket can rotate following the first rocker 120, which is convenient for the user to use.

[0070] Certainly, the present utility model is not limited to the above embodiments. Those skilled in the art can make equivalent deformations or replacements without departing from the spirit of the present utility model. These equivalent variations or replacements are all included in the scope defined by the claims of this application.

Claims

1. A chassis structure, characterized in that: include: A housing assembly, comprising 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; A first elastic component, comprising a first elastic member, one end of the first elastic member is connected to the bottom shell, and the other end of the first elastic member is connected to the first seesaw; The second elastic component includes a second elastic member, one end of the second elastic member is connected to the bottom shell, and the other end is connected to the second rocker plate.

2. The chassis structure according to claim 1, characterized in that: It also includes a first control component, which includes a first control line, a first control member and a first control seat, the first control seat is connected to the middle of the first rocker and is located at one end of the first rocker close to the bottom shell, the first control seat is provided with a gear adjustment slot, the first control member is connected to the bottom shell and can slide toward or away from the first control seat, the first control line is connected to the first control member, and the first control line is configured to drive the first control member to slide so that the first control member is engaged in or exits the gear adjustment slot.

3. The chassis structure according to claim 2, characterized in that: The first control seat is provided with a plurality of the gear adjustment slots, and the plurality of the gear adjustment slots are arranged at intervals along the rotation direction of the first rocker.

4. The chassis structure according to claim 1, characterized in that: The first elastic member is a glass fiber sheet, one end of the first elastic member is connected to an end of the bottom shell away from the first seesaw, and the other end is connected to an end of the first seesaw away from the bottom shell, the chassis structure also includes a first adjustment component, the first adjustment component includes a driving mechanism and a supporting slider, the supporting slider is arranged below the first elastic member and the upper end 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, characterized in that: The driving mechanism includes a driving wheel, a gear transmission mechanism and a threaded rod connected in sequence. The threaded rod is rotatably connected to the chassis and arranged along the length direction of the first elastic member. The supporting slider is threadedly connected to the threaded rod. The rotation of the driving wheel can drive the gear transmission mechanism to rotate, the gear transmission mechanism can drive the threaded rod to rotate, and the rotation of the threaded rod can drive the supporting slider to slide along the length direction of the first elastic member.

6. The chassis structure according to claim 1, characterized in that: It also includes a second control component, which includes a second control line, a second control member and a second control seat, the second control seat is connected to the second rocker, a locking groove is formed between the second control seat and the second rocker, the second control member is slidably connected to the bottom shell, and the second control line is configured to be able to drive the second control member to slide so that the second control member is locked in or out of the locking groove.

7. The chassis structure according to claim 1, characterized in that: 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.

8. The chassis structure according to claim 1, characterized in that: The second elastic component includes two second elastic members, the second elastic members are springs, and the two springs are respectively disposed on the left and right sides of the bottom shell.

9. A seat, characterized in that: Comprising the chassis structure as claimed in any one of claims 1 to 8.

10. The seat according to claim 9, characterized in that A seat back is included, and the seat back is connected to the rear side of the first rocker plate.

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