Seat sitting structure and seat

Abstract

The utility model discloses a seat sitting structure and a seat, the seat sitting structure comprises a support, a seat back, a seat plate and an elastic device, and the left side and the right side of the support are provided with connecting arms; connecting plates are arranged on the two sides of the chair back, the two connecting plates are rotationally connected with the two connecting arms respectively, and the connecting positions of the connecting plates and the connecting arms are first fulcrums; first connecting blocks are arranged on the left side and the right side of the seat plate and rotationally connected to the connecting plate, and second fulcrums are arranged at the joints of the first connecting blocks and the connecting plate and located on the front sides of the first fulcrums; the elastic device comprises a first connecting seat, an elastic assembly and a second connecting seat, the first connecting seat is connected to the lower end face of the seat plate, the second connecting seat is connected to the support, and the elastic assembly is arranged on the second connecting seat and connected with the first connecting seat; according to the seat sitting structure provided by the embodiment of the utility model, the automatic fitting of the chair back and the back and the self-adaptive gravity pitching adjusting function are realized, and the user experience is favorably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of seats, in particular to a seat seating structure and a seat. Background Art

[0002] Current seat designs suffer from two major technical flaws: First, the backrest doesn't fit properly against the back, which can easily lead to back pain and other issues with long-term use. Second, the seat lacks adaptive gravity pitch adjustment. Traditional manual adjustment is cumbersome and can't dynamically adjust pitch resistance and angle based on the user's weight and sitting posture, making it difficult to achieve personalized, adaptive support. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a seat seating structure that achieves automatic backrest fit and adaptive gravity pitch adjustment, significantly improving the comfort and convenience of the seat and enhancing the user experience.

[0004] In a second aspect, the present invention also proposes a seat using the above-mentioned seat seating structure.

[0005] According to the first embodiment of the present invention, a seat seating structure is provided, comprising:

[0006] The bracket has connecting arms extending upward on the left and right sides;

[0007] A chair back, with connecting plates on both sides, the chair back is arranged between the two connecting arms, the two connecting plates are rotatably connected to the two connecting arms respectively, and the connection point between the connecting plates and the connecting arms is a first fulcrum;

[0008] The seat plate has first connecting blocks on both sides, the first connecting blocks are rotatably connected to the connecting plate, the connection between the first connecting block and the connecting plate is a second fulcrum, and the second fulcrum is located in front of the first fulcrum;

[0009] The elastic device includes a first connecting seat, an elastic component, and a second connecting seat, wherein the first connecting seat is connected to the lower end surface of the seat plate, the second connecting seat is connected to the bracket, and the elastic component is provided on the second connecting seat and connected to the first connecting seat;

[0010] When the seat plate rotates downward around the first fulcrum, the elastic component is compressed, and the first connecting block can drive the chair back to rotate forward around the first fulcrum; when the chair back rotates backward around the first fulcrum, the first connecting block can drive the seat plate to rotate upward around the first fulcrum, and the elastic component is stretched.

[0011] The seat seating structure provided by the embodiment of the first aspect of the present invention has at least the following beneficial effects: through the linkage mechanism between the first fulcrum and the second fulcrum between the seat plate and the chair back, when the user sits down, the seat plate presses down and drives the chair back to automatically fit the user's back, significantly improving the fit between the chair back and the back, and enhancing the comfort and health of the seat. Secondly, the present invention also has an adaptive gravity pitch adjustment function. When the user leans back, the elastic device dynamically adjusts the pitch resistance and angle according to the user's weight and sitting posture. Without manual adjustment, a personalized and adaptive support effect can be achieved, greatly improving the convenience of use of the seat and the user experience.

[0012] According to the seat seating structure provided by the embodiment of the first aspect of the present invention, the front side of the bracket is provided with a mounting tube extending obliquely upward, the first connecting seat is sleeved on the outer periphery of the mounting tube and can slide up and down relative to the mounting tube, the elastic component is arranged in the mounting tube, the second connecting seat is located below the mounting tube, and the second connecting seat is connected to the bracket to confine the elastic component in the mounting tube.

[0013] According to the seat seating structure provided by the embodiment of the first aspect of the present invention, the opposite side walls of the mounting tube are provided with through grooves, and the elastic component includes a first telescopic body, a first cross bar, a second telescopic body and a second cross bar. One end of the first telescopic body is fixed to the second connecting seat, and the other end is fixed to the first cross bar. One end of the second telescopic body is fixed to the first cross bar, and the other end is fixed to the second cross bar. The second cross bar is fixed to the upper end of the mounting tube, and the two ends of the first cross bar respectively pass through the through grooves and are connected to the first connecting seat. The rotation of the first connecting seat can drive the first cross bar to move up and down, thereby enabling the first telescopic body and the second telescopic body to telescope.

[0014] According to the seat seating structure provided in the embodiment of the first aspect of the present utility model, the first telescopic body includes a first spring and a first telescopic rod, the first spring is sleeved on the first telescopic rod, the two ends of the first telescopic rod are respectively connected to the first cross bar and the second connecting seat, and the two ends of the first spring are respectively fixed to the first cross bar and the second connecting seat; the second telescopic body includes a second spring and a second telescopic rod, the second spring is sleeved on the second telescopic rod, the two ends of the second telescopic rod are respectively connected to the first cross bar and the second cross bar, and the two ends of the second spring are respectively fixed to the first cross bar and the second cross bar.

[0015] According to the seat seating structure provided in the embodiment of the first aspect of the present invention, the elastic component includes two first telescopic bodies and two second telescopic bodies, the two first telescopic bodies are arranged side by side between the second connecting seat and the first cross bar, and the two second telescopic bodies are arranged side by side between the first cross bar and the second cross bar.

[0016] According to the seat seating structure provided by the embodiment of the first aspect of the present invention, first connecting parts are provided on both sides of the first connecting seat, and a plurality of first screw holes are provided at intervals on the lower end surface of the first connecting part. Screws are passed through the first screw holes to fix the first connecting seat to the lower end of the seat plate.

[0017] According to the seat seating structure provided by the embodiment of the first aspect of the present invention, a guide groove is provided on the side wall opposite to the first connecting seat, and a guide rod is provided on the outer wall opposite to the mounting tube, and the guide rod is inserted into the guide groove.

[0018] According to the seat seating structure provided by the embodiment of the first aspect of the present invention, the side walls opposite to the mounting tube are provided with threaded connection seats, and the end of the guide rod is threadedly connected to the threaded connection seat.

[0019] According to the seat seating structure provided by the embodiment of the first aspect of the present invention, the seat plate is provided with a second connecting block, the second connecting block is located on the rear side of the first connecting block, the connecting arm is provided with a limiting groove on the side facing the second connecting block, the second connecting block is connected to the limiting column, and the limiting column is inserted into the limiting groove.

[0020] The seat provided in accordance with the embodiment of the second aspect of the present invention has all the beneficial effects of the embodiment of the first aspect of the present invention.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0023] Figure 1 An overall schematic diagram of a seat seating structure provided by an embodiment of the present utility model;

[0024] Figure 2 A cross-sectional view of a seat seating structure is provided for an embodiment of the present utility model;

[0025] Figure 3 An exploded schematic diagram of a seat seating structure provided by an embodiment of the present invention;

[0026] Figure 4 An exploded schematic diagram of the bracket and elastic device provided in an embodiment of the present utility model;

[0027] Figure 5 This is a schematic structural diagram of the elastic component provided in an embodiment of the present utility model.

[0028] The accompanying figures are as follows:

[0029] Bracket 100; connecting arm 110; limiting groove 111; mounting tube 120; through groove 121; guide rod 122;

[0030] Chair back 200; connecting plate 210; first fulcrum 220;

[0031] Seat plate 300; first connecting block 310; second fulcrum 320; second connecting block 330; limiting column 340;

[0032] Elastic device 400 ; first connecting seat 410 ; first connecting portion 411 ; guide groove 412 ; elastic component 420 ; first telescopic body 421 ; first cross bar 422 ; second telescopic body 423 ; second cross bar 424 ; second connecting seat 430 ; threaded connecting seat 432 . DETAILED DESCRIPTION

[0033] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0034] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] In the description of this utility model, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0036] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0037] An embodiment of the present invention provides a seat seating structure, which is applied to a seat. The specific structure and function of the seat seating structure provided by the embodiment of the present invention will be further described below with reference to text and drawings.

[0038] Reference Figures 1 to 4 According to the first embodiment of the present invention, a seat seating structure includes: a bracket 100, a seat back 200, a seat plate 300, and an elastic device 400. The bracket 100 is provided with upwardly extending connecting arms 110 on both sides to provide stable support for the entire seat seating structure. Connecting plates 210 are provided on both sides of the seat back 200. The seat back 200 is arranged between the two connecting arms 110, and the two connecting plates 210 are rotatably connected to the two connecting arms 110 respectively, and the connection forms a first fulcrum 220. The seat plate 300 is provided with a first connecting block 310 on both sides. The first connecting block 310 is rotatably connected to the connecting plate 210, and the connection forms a second fulcrum 320, and the second fulcrum 320 is located in front of the first fulcrum 220. The elastic device 400 includes a first connecting seat 410, an elastic component 420, and a second connecting seat 430. The first connecting seat 410 is connected to the lower end surface of the seat plate 300 , the second connecting seat 430 is connected to the bracket 100 , and the elastic component 420 is disposed on the second connecting seat 430 and connected to the first connecting seat 410 .

[0039] When a user sits down, their buttocks press downward on the seat panel 300, causing it to rotate downward about the first fulcrum 220, compressing the elastic assembly 420. Due to the pivotal connection between the first connecting block 310 and the connecting plate 210, the downward pressure of the seat panel 300 causes the chair back 200 to rotate forward about the first fulcrum 220, allowing it to conform to the user's back. During this process, the compression of the elastic assembly 420 provides appropriate support, allowing the chair back 200 to closely conform to the user's back curve.

[0040] When the user leans back, their back presses against the chair back 200, causing it to rotate backward around the first fulcrum 220. This causes the elastic component 420 to stretch, while the first connecting block 310 simultaneously causes the seat pan 300 to rotate upward around the first fulcrum 220, allowing the seat pan 300 to conform to the user's buttocks. Because the stretching force of the elastic component 420 is dependent on the user's weight and sitting posture, the elastic component 420 can dynamically adjust the pitch resistance and angle based on the user's weight and sitting posture, achieving personalized, adaptive support.

[0041] According to the seat seating structure provided by the embodiment of the first aspect of the present invention, through the linkage mechanism between the first fulcrum 220 and the second fulcrum 320 between the seat plate 300 and the chair back 200, when the user sits down, the seat plate 300 presses down and drives the chair back 200 to automatically fit the user's back, significantly improving the fit between the chair back 200 and the back, and enhancing the comfort and health of the seat. Secondly, the present invention also has an adaptive gravity pitch adjustment function. When the user leans back, the elastic device 400 dynamically adjusts the pitch resistance and angle according to the user's weight and sitting posture. Without manual adjustment, a personalized and adaptive support effect can be achieved, greatly improving the convenience of use of the seat and the user experience.

[0042] It is understood that the elastic component 420 can be a spring, an elastic sleeve, or other structure with elastic restoring force. When the user stands up and the buttocks and back are separated from the seat seating structure, the elastic component 420 can return the seat plate 300 and the chair back 200 to their original positions, making it easier for the user to sit next time.

[0043] Reference Figures 2 to 4 According to the seat seating structure provided by the embodiment of the first aspect of the present invention, a mounting tube 120 extending upward at an angle is provided on the front side of the bracket 100. The mounting tube 120 not only provides a stable accommodation space for the elastic assembly 420, but also enhances the stability of the structure through its inclined design. The first connecting seat 410 is sleeve-shaped and fits over the outer periphery of the mounting tube 120, and can slide up and down relative to the mounting tube 120. This allows the first connecting seat 410 to slide accordingly with the up and down rotation of the seat plate 300 when the user sits down or reclines, thereby maintaining the effective function of the elastic assembly 420. The elastic assembly 420 is mounted within the mounting tube 120. The second connecting seat 430 is located below the mounting tube 120 and is securely connected to the bracket 100. Through the connection between the first connecting seat 410 and the bracket 100, the elastic assembly 420 is firmly confined within the mounting tube 120, ensuring its stability and safety during use.

[0044] When the user sits down, the seat pan 300 is pressed down, the first connecting seat 410 slides down accordingly, and the elastic component 420 in the mounting tube 120 is stretched. Conversely, when the user leans back, the seat pan 300 is lifted up, the first connecting seat 410 slides up, and the elastic component 420 is compressed. Because the elastic component 420 is confined within the mounting tube 120, its expansion and contraction movement is smoother and more controllable, providing the user with a more comfortable and stable riding experience. In addition, the inclined design of the mounting tube 120 also allows the force of the elastic component 420 to be more evenly transmitted to the seat pan 300 and the chair back 200, further enhancing the comfort and support of the seat.

[0045] It is understandable that the mounting tube 120 and the bracket 100 can be integrally formed to increase structural strength.

[0046] Reference Figure 3 and Figure 4 According to the seat seating structure provided by the first embodiment of the present invention, through-slots 121 are provided on opposite side walls of the mounting tube 120, allowing the first crossbar 422 to move up and down within the through-slots. The elastic assembly 420 includes a first telescopic body 421, a first crossbar 422, a second telescopic body 423, and a second crossbar 424. Specifically, one end of the first telescopic body 421 is fixed to the second connecting seat 430, and the other end is fixedly connected to the first crossbar 422. One end of the second telescopic body 423 is connected to the first crossbar 422, and the other end is fixedly connected to the second crossbar 424. The second crossbar 424 is securely fixed to the upper end of the mounting tube 120. This ensures the stability and reliability of the elastic assembly 420. Both ends of the first crossbar 422 pass through the through-slots 121 and connect to the first connecting seat 410. This allows the first crossbar 422 to move up and down accordingly as the first connecting seat 410 slides up and down. As the first crossbar 422 moves, the first telescopic body 421 and the second telescopic body 423 also telescope and expand, thereby providing necessary elasticity and supporting force for the seat structure.

[0047] When the user sits down, the seat pan 300 presses down, the first connecting seat 410 slides down, and the first cross bar 422 compresses the first telescopic body 421 and stretches the second telescopic body 423. Conversely, when the user leans back, the seat pan 300 lifts up, the first connecting seat 410 slides up, and the first cross bar 422 also moves up, stretching the first telescopic body 421 and compressing the second telescopic body 423. This allows the seat structure to dynamically adjust the pitch resistance and angle according to the user's weight and sitting posture, providing the user with a more comfortable and personalized riding experience.

[0048] Reference Figure 5 According to the seat seating structure provided by the embodiment of the first aspect of the present invention, the first telescopic body 421 is composed of a first spring and a first telescopic rod, wherein the first spring is sleeved on the outer periphery of the first telescopic rod. The two ends of the first telescopic rod are respectively connected to the first cross bar 422 and the second connecting seat 430, ensuring the stability of the structure. The two ends of the first spring are respectively fixed to the first cross bar 422 and the second connecting seat 430, providing the necessary elastic restoring force for the telescopic action. Similarly, the second telescopic body 423 also adopts a similar design, consisting of a second spring and a second telescopic rod. The second spring is sleeved on the outer periphery of the second telescopic rod, and the two ends of the second telescopic rod are respectively connected to the first cross bar 422 and the second cross bar 424. The two ends of the second spring are also respectively fixed to the first cross bar 422 and the second cross bar 424, further enhancing the elasticity and stability of the structure.

[0049] When a user sits down or reclines, the first connecting base 410 drives the first crossbar 422 to move up and down. Due to the connection between the first crossbar 422 and the first and second telescopic rods, this up and down movement translates into the extension and retraction of the first and second telescopic rods. Simultaneously, the first and second springs compress or extend as the telescopic rods extend and retract, providing continuous, adjustable elastic support for the seat structure.

[0050] Reference Figure 4 and Figure 5 According to the seat seating structure provided by the first embodiment of the present invention, the elastic assembly 420 includes two first telescopic bodies 421 and two second telescopic bodies 423. Specifically, the two first telescopic bodies 421 are mounted side by side between the second connecting seat 430 and the first crossbar 422. This not only enhances the support strength of the elastic assembly 420 but also improves its stability and durability. The two first telescopic bodies 421 jointly withstand pressure from the seat plate 300 and the chair back 200, ensuring that the seat maintains stable performance during long-term use. Similarly, the two second telescopic bodies 423 are also arranged side by side between the first crossbar 422 and the second crossbar 424. This further enhances the elastic recovery force of the elastic assembly 420, making the seat more responsive when the user sits down or reclines, providing a more snug and comfortable support. The parallel arrangement of the two second telescopic bodies 423 also helps distribute pressure, reducing wear on individual components and thus extending the service life of the seat.

[0051] When the user sits down, the two first telescopic bodies 421 are compressed simultaneously, providing stable support for the seat pan 300. When the user reclines, the two second telescopic bodies 423 are compressed simultaneously, dynamically adjusting the pitch resistance and angle based on the user's weight and sitting posture. This dual-telescopic body design provides superior comfort and support, meeting the needs of different users and delivering a personalized, adaptive riding experience.

[0052] Reference Figure 4 According to the seat seating structure provided by the embodiment of the first aspect of the present invention, first connecting portions 411 are provided on both sides of the first connecting seat 410. Specifically, the lower end surface of the first connecting portion 411 is arranged with a plurality of first screw holes spaced apart. The design of the first screw holes allows screws to be easily inserted and secured, thereby firmly attaching the first connecting seat 410 to the lower end of the seat plate 300. The provision of multiple screw holes also provides room for adjustment, allowing fine-tuning as needed during the installation process to ensure that the connection between the first connecting seat 410 and the seat plate 300 is both stable and accurate.

[0053] During installation, simply insert the screw through the first screw hole and tighten it to reliably fix the first connecting base 410 to the lower end of the seat plate 300. This connection method is not only simple and easy to use, but also provides sufficient strength and stability to withstand various forces and pressures generated by the user when using the chair.

[0054] In addition, the connection between the first connecting portion 411 and the seat plate 300 can be further strengthened by other auxiliary means, such as washers, lock nuts, etc. These auxiliary means can improve the tightness and durability of the connection, ensuring that the seat structure maintains stable and reliable performance during long-term use.

[0055] Reference Figure 2 and Figure 3 According to the seat seating structure provided by the embodiment of the first aspect of the present invention, guide grooves 412 are provided on the opposite side walls of the first connecting seat 410. Specifically, guide rods 122 are provided on the opposite outer walls of the mounting tube 120. The guide rods 122 are inserted into the guide grooves 412 of the first connecting seat 410. When the first connecting seat 410 slides up and down, the guide rods 122 move along the guide grooves 412, providing stable support and guidance for the first connecting seat 410. This not only prevents the first connecting seat 410 from deflecting or shaking during the sliding process, but also ensures that the elastic component 420 can always maintain the correct position and working state.

[0056] Reference Figure 3 and Figure 4 According to the seat seating structure provided by the embodiment of the first aspect of the present invention, threaded connection seats 432 are provided on the opposite side walls of the mounting tube 120, and the end of the guide rod 122 is threadedly connected to the threaded connection seat 432. Specifically, the end of the guide rod 122 is designed to have a threaded shape that matches the threaded connection seat 432. During installation, the first connection seat 410 is first inserted into the mounting tube 120, and then the end of the guide rod 122 is passed through the guide groove 412 and screwed into the threaded connection seat 432. By rotating them to tightly connect, a secure connection between the mounting tube 120 and the guide rod 122 is achieved. This threaded connection method is not only simple and easy to use, but also provides sufficient strength and stability to withstand the various forces and pressures generated during the use of the seat.

[0057] Reference Figures 1 to 3According to the seat seating structure provided by the embodiment of the first aspect of the present invention, the seat plate 300 is provided with a second connecting block 330, and the second connecting block 330 is located on the rear side of the first connecting block 310. A limiting groove 111 is provided on the side of the connecting arm 110 facing the second connecting block 330. The limiting groove 111 is designed on the side of the connecting arm 110 facing the second connecting block 330. This limiting groove 111 not only provides a precise plug-in position for the limiting column 340 on the second connecting block 330, but also ensures that the seat plate 300 can maintain a stable motion trajectory during forward and backward movement or rotation. The limiting column 340 is connected to the second connecting block 330, and the limiting column 340 can be tightly plugged into the limiting groove 111 of the connecting arm 110. During the installation process, the alignment and plugging of the limiting column 340 with the limiting groove 111 ensure the stability and flexibility of the connection between the seat plate 300 and the connecting arm 110.

[0058] When the seat plate 300 moves forward or backward or rotates, the limiting post 340 moves along the limiting slot 111, providing stable support and guidance for the seat plate 300. This not only prevents the seat plate 300 from deflecting or shaking during movement, but also ensures that the seat structure can always maintain the correct position and working state.

[0059] The seat provided in accordance with the embodiment of the second aspect of the present invention has all the beneficial effects of the embodiment of the first aspect of the present invention.

[0060] It is understandable that the seat further includes a seat cushion arranged on the seat plate 300 and a pulley frame arranged below the bracket 100, etc., which will not be described in detail here.

[0061] Of course, the present invention is not limited to the above-mentioned embodiments. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A seat seating structure, characterized in that: include: The bracket has connecting arms extending upward on the left and right sides; A chair back, with connecting plates on both sides, the chair back is arranged between the two connecting arms, the two connecting plates are rotatably connected to the two connecting arms respectively, and the connection point between the connecting plates and the connecting arms is a first fulcrum; The seat plate has first connecting blocks on both sides, the first connecting blocks are rotatably connected to the connecting plate, the connection between the first connecting block and the connecting plate is a second fulcrum, and the second fulcrum is located in front of the first fulcrum; The elastic device includes a first connecting seat, an elastic component, and a second connecting seat, wherein the first connecting seat is connected to the lower end surface of the seat plate, the second connecting seat is connected to the bracket, and the elastic component is provided on the second connecting seat and connected to the first connecting seat; When the seat plate rotates downward around the first fulcrum, the elastic component is compressed, and the first connecting block can drive the chair back to rotate forward around the first fulcrum; When the chair back rotates backward around the first fulcrum, the first connecting block can lead the seat plate to rotate upward around the first fulcrum, and the elastic component is stretched.

2. The seat seating structure according to claim 1, characterized in that: The front side of the bracket is provided with a mounting tube extending obliquely upward, the first connecting seat is sleeved on the outer circumference of the mounting tube and can slide up and down relative to the mounting tube, the elastic component is arranged in the mounting tube, and the second connecting seat is located below the mounting tube. The second connecting seat is connected to the bracket to confine the elastic component in the mounting tube.

3. The seat seating structure according to claim 2, characterized in that: The opposite side walls of the mounting tube are provided with through grooves, and the elastic component includes a first telescopic body, a first cross bar, a second telescopic body and a second cross bar. One end of the first telescopic body is fixed to the second connecting seat, and the other end is fixed to the first cross bar. One end of the second telescopic body is fixed to the first cross bar, and the other end is fixed to the second cross bar. The second cross bar is fixed to the upper end of the mounting tube, and the two ends of the first cross bar respectively pass through the through grooves and are connected to the first connecting seat. The sliding of the first connecting seat can drive the first cross bar to move up and down, thereby enabling the first telescopic body and the second telescopic body to telescope.

4. The seat seating structure according to claim 3, characterized in that: The first telescopic body includes a first spring and a first telescopic rod, the first spring is sleeved on the first telescopic rod, the two ends of the first telescopic rod are respectively connected to the first cross bar and the second connecting seat, and the two ends of the first spring are respectively fixed to the first cross bar and the second connecting seat; the second telescopic body includes a second spring and a second telescopic rod, the second spring is sleeved on the second telescopic rod, the two ends of the second telescopic rod are respectively connected to the first cross bar and the second cross bar, and the two ends of the second spring are respectively fixed to the first cross bar and the second cross bar.

5. The seat seating structure according to claim 3, characterized in that: The elastic component includes two first telescopic bodies and two second telescopic bodies. The two first telescopic bodies are arranged in parallel between the second connecting seat and the first cross bar, and the two second telescopic bodies are arranged in parallel between the first cross bar and the second cross bar.

6. The seat seating structure according to claim 1, characterized in that: First connecting parts are provided on both sides of the first connecting seat, and a plurality of first screw holes are provided at intervals on the lower end surface of the first connecting part. Screws are passed through the first screw holes to fix the first connecting seat to the lower end of the seat plate.

7. The seat seating structure according to claim 2, characterized in that: A guide groove is provided on the side wall opposite to the first connecting seat, and a guide rod is provided on the outer wall opposite to the mounting tube, and the guide rod is inserted into the guide groove.

8. The seat seating structure according to claim 7, characterized in that: A threaded connection seat is provided on the side wall opposite to the installation cylinder, and the end of the guide rod is threadedly connected to the threaded connection seat.

9. The seat seating structure according to claim 1, characterized in that: The seat plate is provided with a second connecting block, the second connecting block is located at the rear side of the first connecting block, the connecting arm is provided with a limiting groove on the side facing the second connecting block, the second connecting block is connected to the limiting column, and the limiting column is inserted into the limiting groove.

10. A seat, characterized in that: The utility model comprises the seat seating structure according to any one of claims 1 to 9.

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