Height-adjustable suspension seat

Abstract

The utility model relates to a height-adjustable suspension seat. The height-adjustable suspension seat comprises a base; the seat assembly is located above the base and comprises a backrest assembly and a seat cushion assembly which are connected with each other; the sliding rail mechanism comprises a lower rail connected to the base, an upper rail fixed to the backrest assembly, a lead screw connected between the lower rail and the upper rail and used for driving the upper rail to slide relative to the lower rail so as to adjust the height of the seat assembly, and a motor. The backrest of the whole chair is connected with the base through the sliding rail mechanism, the backrest and the upper rail are integrated, the height of the whole chair is adjusted through relative movement of the upper rail and the lower rail, more lower space of a cushion is released, and the chair can be suitable for more vehicle body environments.

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles, in particular to a height-adjustable suspension seat. Background Art

[0002] In order to improve the shock absorption effect of the seat, a suspension seat is often used. The current suspension seat is usually achieved by placing the seat cushion on a movable mechanism and connecting the movable mechanism with an energy absorbing element to achieve up and down movement. This structure needs to occupy the entire space under the seat cushion and is highly dependent on the vehicle body environment. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a height-adjustable suspended seat, which connects the entire chair backrest and the base through a sliding rail mechanism, and integrates the backrest and the upper rail into one. The height of the entire chair is adjusted by the relative movement of the upper and lower rails, which releases more space under the seat cushion and can be applied to more vehicle body environments.

[0004] The utility model is realized through the following scheme: a height-adjustable suspended seat, comprising: a base; a seat assembly located above the base, the seat assembly comprising a backrest assembly and a seat cushion assembly connected to each other; a slide rail mechanism, comprising a lower rail connected to the base, an upper rail fixed to the backrest assembly, a screw rod and a motor connected between the lower rail and the upper rail and used to drive the upper rail to slide relative to the lower rail to achieve height adjustment of the seat assembly.

[0005] A further improvement of the height-adjustable suspension seat of the utility model is that the lead screw is fixed on the lower rail, the lead screw and the motor are connected by a worm gear structure, the worm gear structure includes a worm wheel threadedly connected to the lead screw, and a worm meshing with the worm wheel, and the motor drives the worm to make the worm wheel move along the lead screw.

[0006] A further improvement of the height-adjustable suspension seat of the utility model lies in that the motor is fixed on the upper rail or the backrest assembly.

[0007] A further improvement of the height-adjustable suspension seat of the utility model is that a gear assembly is further arranged between the motor and the worm.

[0008] A further improvement of the height-adjustable suspension seat of the utility model is that the number of the upper rail, the lower rail, the screw and the worm gear structure is two, and they are arranged in a one-to-one correspondence, and the gear assembly is located between the two worm gear structures and is simultaneously transmission-connected to the two worms.

[0009] A further improvement of the height-adjustable suspension seat of the utility model is that the gear assembly includes a driven shaft coaxially connected between the two worms, a driven gear sleeved on the driven shaft and a driving gear meshed with the driven gear, and the motor is drivingly connected to the driving gear.

[0010] A further improvement of the height-adjustable suspension seat of the utility model is that the slide rail mechanism also includes two small gear boxes for limiting the support of the two worm gear structures, and the small gear box includes two side covers arranged along the axial direction of the screw rod and two end covers arranged along the axial direction of the worm rod, and the two side covers and the two end covers are snap-fitted and connected to form an I-shape.

[0011] A further improvement of the height-adjustable suspension seat of the utility model is that a lower slide groove is formed on the lower rail, an upper slide groove matched with the lower slide groove is formed on the upper rail, the screw rod is accommodated between the lower slide groove and the upper slide groove, and an opening is formed on the upper slide groove for the worm gear structure to be clamped and extended out.

[0012] A further improvement of the height-adjustable suspension seat of the utility model lies in that the lower rail is fixedly connected to the base.

[0013] A further improvement of the height-adjustable suspension seat of the utility model is that the lower rail is rotatably connected to the base via a rotating shaft, and the height-adjustable suspension seat also includes a connecting rod mechanism hinged to the lower rail, and a driving mechanism for driving the connecting rod mechanism to move so as to drive the entire seat assembly to swing, and the driving mechanism is connected between the connecting rod mechanism and the base.

[0014] The utility model connects the whole chair backrest to the base through the slide rail mechanism, and integrates the backrest with the upper rail. The height of the whole chair is adjusted through the relative movement of the upper and lower rails, which releases more space under the seat cushion and can be applied to more vehicle body environments. In addition, through the coordinated design of the connecting rod mechanism and the driving mechanism, the angle of the slide rail mechanism is adjustable, and then the angle of the whole chair is adjustable, which can be fully adjusted to a comfortable state according to personal preference, greatly improving the overall comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The overall structural diagram of the first embodiment of the utility model is shown.

[0016] Figure 2 Shows Figure 1 Exploded diagram.

[0017] Figure 3 The structure diagram of the slide rail mechanism in the utility model is shown. Figure 1 .

[0018] Figure 4 Shows Figure 3 Exploded diagram.

[0019] Figure 5 The schematic diagram of the connection structure between the small and medium gear box and the screw rod of the utility model is shown.

[0020] Figure 6 Shows Figure 5 Exploded diagram.

[0021] Figure 7 Shows Figure 5 AA cross-section diagram.

[0022] Figure 8 The structure diagram of the slide rail mechanism in the utility model is shown. Figure 2 .

[0023] Fig. 9 Shows Figure 8 BB cross-section diagram.

[0024] Fig.10 The overall structural diagram of the second embodiment of the utility model is shown.

[0025] Fig.11 Shows Fig.10 Exploded diagram.

[0026] Fig.12 A schematic diagram of the connection structure between the driving mechanism and the connecting rod mechanism in the second embodiment of the utility model is shown.

[0027] Fig.13 Shows Fig.12 Exploded diagram.

[0028] Fig.14 A schematic diagram of the connection structure between the lower rail and the supporting feet in the second embodiment of the utility model is shown.

[0029] Fig.15 Shows Fig.14 Exploded diagram.

[0030] Fig.16 A schematic diagram of the connection structure of the lower rail, the connecting rod mechanism and the supporting feet in the second embodiment of the utility model is shown.

[0031] Fig.17 Shows Fig.16 Exploded diagram.

[0032] Fig.18 An exploded view of the connection structure between the driving mechanism and the connecting rod mechanism in the second embodiment of the utility model is shown.

[0033] Fig.19 A cross-sectional view of a driving mechanism in a second embodiment of the present utility model is shown.

[0034] Fig. 20 A comparative schematic diagram of the driving mechanism of the second embodiment of the utility model before and after angle adjustment is shown.

[0035] Fig.21 A schematic diagram showing the motion principle of angle adjustment in the second embodiment of the utility model is shown.

[0036] Fig. 22 A schematic diagram comparing the side structures of the second embodiment of the utility model before and after adjustment is shown.

[0037] Fig.23 A schematic diagram of the motion principle of the second embodiment of the utility model is shown.

[0038] In the figure: 10, base; 11, support foot; 12, U-shaped ear seat; 13, first metal baffle; 14, first plastic gasket; 15, first bushing; 16, secondary shaft; 20, driving mechanism; 21, first motor; 22, first screw rod; 23, screw sleeve; 30, first connecting rod; 31, second metal baffle; 32, second plastic gasket; 33, second bushing; 40, second connecting rod; 50, main shaft; 60, front hinge; 61, first bolt; 62, first nut; 70, lower hinge; 80, pivot member; 81, step nut; 82, step bolt; 100, seat assembly; 101, welding block; 110, upper rail; 1101, upper slide groove; 1102, opening; 1103, lower lock edge; 1104, mounting hole; 111, worm; 1111, second through hole; 112 worm wheel ; 113, third bushing; 114, outer cover; 115, inner cover; 116, lower end cover; 117, upper end cover; 120, lower rail; 1201, lower slide groove; 1202, upper lock edge; 121, second screw rod; 1211, first through hole; 122, first fixing block; 123, second fixing block; 130, slide rail mechanism; 131, second motor; 132, motor shaft; 133 , fourth bushing; 134, driving gear; 135, driven gear; 136, driving shaft; 137, driven pull; 140, left box cover; 1401, transmission shaft hole; 141, right box cover; 142, second bolt; 143, second nut; 144, left L-shaped plate; 145, right L-shaped plate; 1451, motor shaft hole; 146, U-shaped bracket; 147, fixing plate; 148, vertical plate. DETAILED DESCRIPTION

[0039] In order to solve the problem that traditional suspension seats need to occupy a large space to achieve height adjustment, the utility model provides a height-adjustable suspension seat, which connects the entire chair backrest to the base through a slide rail mechanism, and integrates the backrest with the upper rail. The height of the entire chair is adjusted through the relative movement of the upper and lower rails, which releases more space under the seat cushion and can be applied to more vehicle body environments. The height-adjustable suspension seat is further described below with specific embodiments combined with the accompanying drawings.

[0040] See also Figure 1 and Figure 2 As shown, a height-adjustable suspension seat comprises: a base 10; a seat assembly 100 located above the base 10, the seat assembly 100 comprising a backrest assembly and a seat cushion assembly connected to each other; a slide rail mechanism 130, comprising a lower rail 120 connected to the base 10, an upper rail 110 fixed to the backrest assembly, a second screw rod 121 and a second motor 131 connected between the lower rail 120 and the upper rail 110 and used to drive the upper rail 110 to slide relative to the lower rail 120 to achieve height adjustment of the seat assembly. Specifically, with the cooperation of Figures 3 to 9As shown, the two ends of the second screw rod 121 are supported and fixed on the lower rail 120 by the first fixing block 122 and the second fixing block 123 respectively, and the second motor 131 is fixed on the upper rail 110 by the fixing plate 147 (according to the actual structural situation, the second motor 131 can also be directly fixed on the backrest assembly), and the second screw rod 121 and the second motor 131 are connected by a worm gear structure, and the worm gear structure includes a worm wheel 112 screwed to the second screw rod 121, and a worm 111 meshed with the worm wheel 112. Specifically, the first end of the worm 111 is provided with helical teeth, which mesh with the outer periphery of the worm wheel 112 through the helical teeth, and the second motor 131 drives the second end of the worm 111 to move the worm wheel 112 along the second screw rod 121. Preferably, a lower slide groove 1201 is formed on the lower rail 120, an upper slide groove 1101 adapted to the lower slide groove 1201 is formed on the upper rail 110, the second screw rod 121 is accommodated between the lower slide groove 1201 and the upper slide groove 1101, and an opening 1102 is provided on the upper slide groove 1101 for the worm gear structure to be clamped and extended. An upper locking edge 1202 is provided on the lower slide groove 1201, and a lower locking edge 1103 adapted to the upper locking edge 1202 is provided on the upper slide groove 1101. Through the interlocking of the upper and lower locking edges, the upper rail 110 will not be separated from the lower rail 120 when sliding relative to the lower rail 120. In addition, a plurality of mounting holes 1104 for selective connection of the backrest assembly are spaced apart on the upper rail 110 along the relative sliding direction. The fixing plate 147 is selectively fixed to the mounting holes 1104 by setting fixing holes at the four corners. The suspended seat connects the entire chair back and base through a slide rail mechanism, and integrates the backrest with the upper rail. The height of the entire chair is adjusted through the relative movement of the upper and lower rails, which releases more space under the seat cushion and can be applied to more vehicle body environments.

[0041] In order to improve the driving power of the second motor 131 on the worm 111 and improve the stability of the slide rail mechanism 130, in a preferred embodiment, the number of the upper rail 110, the lower rail 120, the second screw 121 and the worm gear structure is two, and they are arranged one by one. A gear assembly is also arranged between the second motor 131 and the two worm gear structures, and the gear assembly is simultaneously connected to the two worms 111. Specifically, the gear assembly includes a driven shaft 137 coaxially connected between the two worms 111, a driven gear 135 sleeved on the driven shaft 137, and a driving gear 134 meshed with the driven gear 135, the driving gear 134 is sleeved on a driving shaft 136, and the motor shaft 132 of the second motor 131 is coaxially connected to the driving shaft 136 to drive the driving gear 134. The driving gear 134 and the driven gear 135 are externally provided with a large gearbox, which is formed by a left box cover 140 and a right box cover 141 that are snap-fitted together. The left box cover 140 and the right box cover 141 are both provided with transmission shaft holes 1401 for the driving shaft 136 and the driven shaft 137 to pass through respectively. The driving shaft 136 and the driven shaft 137 are both rotatably connected to the corresponding transmission shaft holes 1401 through the third bushing 113. The lower edge of the fixing plate 147 is fixed with an inverted U-shaped bracket 146 by means of a second bolt 142 and a second nut 143, and the upper edge is fixed with a vertical plate 148, and the left L-shaped plate 144 and the right L-shaped plate 145 are respectively fixed to the opposite sides of the vertical plate 148, and an installation space for the large gearbox is formed between the left L-shaped plate 144 and the right L-shaped plate 145, and one end of the second motor 131 is fixed to one side of the inverted U-shaped bracket 146, and the end of the second motor 131 close to the motor shaft 132 is located between the large gearbox and the right L-shaped plate 145. The right L-shaped plate 145 is provided with a motor shaft hole 1451, and the end of the motor shaft 132 away from the driving shaft 136 is penetrated through the motor shaft hole 1451 and is rotatably connected to the motor shaft hole 1451 through the fourth bushing 133.

[0042] In order to ensure the stability of the worm gear structure, the slide rail mechanism 130 also includes two small gear boxes for limiting and supporting the two worm gear structures. The small gear box includes an inner cover 115 and an outer cover 114 arranged along the axial direction of the first screw, and an upper end cover 117 and a lower end cover 116 arranged along the axial direction of the worm 111. The inner cover 115, the outer cover 114, the upper end cover 117 and the lower end cover 116 are relatively inwardly buckled and connected in an I-shaped shape to constrain the worm gear structure from two directions respectively to prevent the helical teeth of the worm wheel 112 and the worm 111 from being separated from each other. In addition, the lower end cover 116 is provided with a first through hole 1211 for the corresponding second screw 121 to pass through, and the inner cover 115 is provided with a second through hole 1111 for the second end of the corresponding worm 111 to pass inward.

[0043] The operating principle of the slide rail mechanism 130 is as follows: the motor shaft 132 of the second motor 131 rotates to drive the driving shaft 136 to rotate, thereby driving the driving gear 134 to rotate, and the driven gear 135 rotates with the rotation of the driving gear 134, thereby driving the driven shaft 137 and the worm 111 at both ends thereof to rotate. Through the structural principle of the worm gear, the rotation of the worm 111 is converted into the rotation of the corresponding worm wheel 112. Since the worm wheel 112 is screwedly connected to the second screw rod 121 and the second screw rod 121 is fixed on the lower rail 120, the worm wheel 112 is forced to move along the second screw rod 121, thereby driving the fixed plate 147 (including the second motor 131 and the gear assembly fixed on the fixed plate 147) and the upper rail 110 (including the backrest assembly fixed on the upper rail 110) to move relative to the second screw rod 121 (that is, relative to the lower rail 120).

[0044] Regarding the connection between the lower rail 120 and the base 10, two embodiments are provided:

[0045] In the first embodiment, the lower rail 120 and the base 10 are fixedly connected. Figure 1 and Figure 2 As shown, a foot 11 is fixed on the base 10, and the middle and lower parts of the back of the lower rail 120 are respectively fixedly connected to the upper and lower parts of the foot 11 through a main shaft 50 and a secondary shaft 16, so that the entire seat assembly 100 forms a suspended structure. It can be understood that the lower rail 120 can also be directly fixedly connected to the base 10. This embodiment has a simple and stable structure, but can only achieve height adjustment of the seat assembly 100.

[0046] In the second embodiment, the lower rail 120 and the base 10 are connected in an active manner. Fig.10 and Fig.11 As shown, the lower rail 120 is pivotally connected to the base 10 via a main shaft 50, and the suspension seat further includes a connecting rod mechanism hinged to the lower rail 120, and a driving mechanism 20 for driving the connecting rod mechanism to move so as to drive the entire seat assembly 100 to swing, and the driving mechanism 20 is connected between the connecting rod mechanism and the base 10. Specifically, with Fig.14 and Fig.15As shown, a foot 11 is fixed on the base 10, and the foot 11 includes two supporting plates arranged opposite to each other. The main shaft 50 passes through the two supporting plates of the foot 11 and is fixed between the two supporting plates through the first metal baffle 13, the first plastic gasket 14 and the first bushing 15. A semi-annular groove is formed on the back of the lower rail 120, and the semi-annular groove forms a closed loop channel by cooperating with the C-shaped welding block 101. The upper hinge 50 is rotatably arranged in the closed loop channel to realize the pivot connection between the lower rail 120 and the upper part of the foot 11. The connecting rod mechanism is hinged to the lower part of the foot 11 through the lower hinge 70, and the front and rear ends of the connecting rod mechanism are hinged to the driving mechanism 20 and the lower rail 120 respectively. The fixed part of the driving mechanism 20 is hinged to the lower front end of the foot 11. The driving mechanism 20 drives the connecting rod mechanism to move to drive the entire seat assembly 100 to swing, thereby realizing the adjustment of the suspension seat angle.

[0047] See also Fig.12 , Fig.13 , Fig.16 and Fig.17 As shown, the connecting rod mechanism includes a second connecting rod 40 and a first connecting rod 30. The second connecting rod 40 is a crank, which satisfies the requirement of being subjected to force only at two ends and being in a balanced state, that is, the directions of the resultant forces at its two ends are opposite and the magnitudes of the forces are equal. The first connecting rod 30 includes two connecting plates. The front end of the second connecting rod 40 is inserted between the rear ends of the two connecting plates and is pivotally connected to the rear ends of the two connecting plates. The rear end of the second connecting rod 40 is hinged to the bottom end of the lower rail 120. The front ends of the two connecting plates are hinged to the driving part of the driving mechanism 20. The two connecting plates are provided with through holes to cooperate with the lower hinge 70, and the two supporting plates of the supporting leg 11 are hinged through the lower hinge 70. The lower hinge 70 is a rotating rod, and the lower parts of the two connecting plates and the two supporting plates are provided with through holes for the rotating rod to pass through. The rotating rod passes through the two connecting plates and the two supporting plates and cooperates with the second metal baffle 31, the second plastic gasket 32 ​​and the second bushing 33 to realize the hinge connection between the first connecting rod 30 and the lower part of the supporting leg 11. It should be noted that, according to actual needs, the through hole for the rotating rod to pass through can be biased to one side of the second connecting rod 40 to achieve force increase and deceleration, or it can be biased to one side of the driving mechanism 20 to achieve force reduction and speed increase.

[0048] See also Figures 11 to 13 , Fig.18 and Fig.19As shown, the driving mechanism 20 includes a first screw rod 22 and a first motor 21 drivingly connected to the first screw rod 22, the first motor 21 is hinged to the base 10 through a front hinge 60, and a screw sleeve 23 is screwed on the first screw rod 22 for the front end of the connecting rod mechanism to be hinged to drive the front end of the connecting rod mechanism to move along the first screw rod 22. Specifically, the first motor 21 is arranged horizontally, and the first screw rod 22 is arranged longitudinally. A transmission member for converting the horizontal rotational motion of the first motor 21 axis into the longitudinal rotational motion of the first screw rod 22 is connected between the first motor 21 and the first screw rod 22. The front hinge 60 includes a first bolt 61 and a first nut 62, and a U-shaped ear seat 12 is also fixed to the bottom front end of the support leg 11, and the transmission member can be rotatably connected in the U-shaped ear seat 12 in the horizontal direction through the first bolt 61 and the first nut 62. The screw sleeve 23 is accommodated between the front ends of the two connecting plates of the first connecting rod 30, and a pair of pivot holes are opened in the lateral direction on the peripheral wall of the screw sleeve 23, and another pair of pivot holes are opened at the front ends of the two connecting plates of the first connecting rod 30, and a pair of pivot joints 80 and the aforementioned two pairs of pivot holes are used to realize the pivot connection between the front end of the first connecting rod 30 and the screw sleeve 23. The pivot joint 80 can be a combination of a step bolt 82 and an adapted step nut 81. Correspondingly, the hinge between the rear end of the first connecting rod 30 and the front end of the second connecting rod 40, and between the rear end of the second connecting rod 40 and the bottom end of the lower rail 120 can also be realized by using a similar pivot joint 80.

[0049] For the case where two upper rails 110 and two lower rails 120 are provided, the connecting rod mechanism and the driving mechanism 20 are also correspondingly provided in two sets. Specifically, the two lower rails 120 are arranged side by side on the back of the backrest assembly, and are hinged to the upper part of the support foot 11 through the same main shaft 50, the four connecting plates of the two first connecting rods 30 are hinged to the lower part of the support foot 11 through the same lower hinge 70, the two first motors 21 are respectively hinged to the two U-shaped ear seats 12 through a front hinge 60, and the two screw sleeves 23 are correspondingly pivoted to the front end of the two first connecting rods 30. The driving effect is improved by driving through two sets of driving mechanisms 20. In addition, the driving effect can be further enhanced by matching the sizes and angles of each component. Specifically, the first screw rod 22 and the lower rail 120 can also be integrated into the entire driving path, which simplifies the structure of the connecting rod mechanism to the greatest extent and optimizes the overall driving effect. Fig. 20 and Fig.21 As shown, when the seat is moved from the initial position (the position relationship of each component corresponds to Fig.21When the adjustment starts (the solid line state), the first motor 21 drives the first screw rod 22 to rotate. The rotation of the first screw rod 22 causes the screw sleeve 23 sleeved on the first screw rod 22 to move along the first screw rod 22, thereby pushing the first connecting rod 30 to swing. The swing of the first connecting rod 30 pushes the second connecting rod 40 to swing, thereby pulling the lower rail 120 to swing, and finally causing the seat assembly 100 to swing backward with the main shaft 50 as the rotation axis, thereby achieving the angle adjustment of the suspended seat. When the screw sleeve 23 moves to the end of the first screw rod 22, the seat assembly 100 swings to the target position (the position relationship of each component corresponds to Fig.21 In the above driving process, the angle between the driving mechanism 20 and the base 10 changes with the movement of the first connecting rod 30.

[0050] In this embodiment, the connecting rod mechanism can be used to drive the backrest assembly to swing to achieve angle adjustment of the entire seat assembly, and the slide rail mechanism 130 can be used to achieve height adjustment of the seat assembly. Fig. 22 and Fig.23 As shown, in the process of achieving the above angle adjustment, the height of the suspension seat can be adjusted synchronously as needed. Fig. 22 and Fig.23 The left figure state) swings to the target position (corresponding to Fig. 22 and Fig.23 During the process of the suspension seat 120 (the state shown in the right figure), the upper rail 110 (including the backrest assembly fixed on the upper rail 110) is actively controlled to move downward by a displacement d relative to the lower rail 120. This embodiment can also adjust the angle of the seat on the basis of the first embodiment. Passengers can adjust the angle and height according to their own needs, further improving the comfort of the suspension seat.

[0051] The utility model is described in detail above in conjunction with the embodiments of the drawings. A person skilled in the art can make various variations of the utility model according to the above description. Therefore, some details in the embodiments should not constitute a limitation of the utility model, and the scope of protection of the utility model shall be defined by the scope of the attached claims.

Claims

1. A height-adjustable suspension seat, characterized in that: include: Base; a seat assembly located above the base, the seat assembly comprising a backrest assembly and a seat cushion assembly connected to each other; The slide rail mechanism includes a lower rail connected to the base, an upper rail fixed to the backrest assembly, a screw rod and a motor connected between the lower rail and the upper rail and used to drive the upper rail to slide relative to the lower rail to achieve height adjustment of the seat assembly.

2. The height-adjustable suspension seat according to claim 1, characterized in that: The lead screw is fixed on the lower rail, and the lead screw and the motor are connected via a worm gear structure, which includes a worm wheel screwed to the lead screw and a worm meshed with the worm wheel. The motor drives the worm to move the worm wheel along the lead screw.

3. The height-adjustable suspension seat according to claim 2, characterized in that: The motor is fixed on the upper rail or the backrest assembly.

4. The height-adjustable suspension seat according to claim 2, characterized in that: A gear assembly is also arranged between the motor and the worm.

5. The height-adjustable suspension seat according to claim 4, characterized in that The number of the upper rail, the lower rail, the lead screw and the worm gear structure is two, and they are arranged in one-to-one correspondence. The gear assembly is located between the two worm gear structures and is simultaneously transmission-connected to the two worms.

6. The height-adjustable suspension seat according to claim 5, characterized in that The gear assembly comprises a driven shaft coaxially connected between the two worms, a driven gear sleeved on the driven shaft, and a driving gear meshed with the driven gear, and the motor is drivingly connected to the driving gear.

7. The height-adjustable suspension seat according to claim 5, characterized in that The slide rail mechanism also includes two small gear boxes for limiting and supporting the two worm gear structures. The small gear boxes include two side covers arranged along the axial direction of the screw rod and two end covers arranged along the axial direction of the worm rod. The two side covers and the two end covers are snap-fitted and connected to form an I-shape.

8. The height-adjustable suspension seat according to claim 2, characterized in that: The lower rail is formed with a lower slide groove, the upper rail is formed with an upper slide groove matched with the lower slide groove, the screw rod is accommodated between the lower slide groove and the upper slide groove, and the upper slide groove is provided with an opening for the worm gear structure to be clamped and extended out.

9. The height-adjustable suspension seat according to claim 1, characterized in that: The lower rail is fixedly connected to the base.

10. The height-adjustable suspension seat according to claim 1, characterized in that The lower rail is rotatably connected to the base via a rotating shaft. The height-adjustable suspension seat also includes a connecting rod mechanism hinged to the lower rail, and a driving mechanism for driving the connecting rod mechanism to move so as to drive the entire seat assembly to swing. The driving mechanism is connected between the connecting rod mechanism and the base.

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