CN219584001U - Seat height adjusting mechanism, seat frame, seat and vehicle - Google Patents

Abstract

The embodiment of the utility model provides a seat height adjusting mechanism, a seat framework with the same, a seat and a vehicle. Wherein, the seat height adjustment mechanism includes connecting plate, screw rod and power component. The connecting plate is provided with a first end and a second end which are oppositely arranged along the extending direction of the connecting plate, a matching part is arranged between the first end and the second end, the first end is used for being hinged with the seat frame bracket, and the second end is used for being hinged with the cushion frame; one end of the screw rod is hinged with the seat frame bracket; the power component is connected with the matching part, the power component is matched with the screw in a threaded mode, and the power component can drive the power component to move along the extending direction of the screw so as to change the distance between the first end and the matching part in the height direction of the seat. Therefore, the height adjusting mechanism provided by the embodiment of the utility model has the advantages of energy conservation, emission reduction and good stability.

Description

Seat height adjusting mechanism, seat frame, seat and vehicle

Technical Field

The utility model relates to the technical field of automobiles, in particular to a seat height adjusting mechanism, a seat framework with the seat height adjusting mechanism, a seat and a vehicle.

Background

In recent years, with the rapid development of electric vehicles, the riding experience of the intelligent cabin of the vehicle is gradually valued by manufacturers and consumers. The seating experience of an automotive intelligent cabin is closely related to automotive seat design. The seat lifter (height adjusting mechanism) provided at the lower portion of the cushion frame of the vehicle and lifting the height of the seat by the seat lifter, thereby improving the comfort of the passenger.

In the related art, the seat lifter comprises a rotating mechanism and a sector toothed plate, a gear of the rotating mechanism is meshed with the tooth part of the sector toothed plate, the sector toothed plate is fixed on a rear connecting rod in a welding mode, the welding process has the problems of high processing cost and unfavorable energy conservation and emission reduction, and the problem of poor matching stability is caused by overlarge matching clearance easily caused in the long-term use process by matching the sector toothed plate with the rotating mechanism.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems in the related art to some extent. To this end, an embodiment of the present utility model proposes a seat height adjustment mechanism. The seat height adjusting mechanism has the advantages of energy conservation, emission reduction and good stability.

The embodiment of the utility model also provides a seat framework.

The embodiment of the utility model also provides a seat.

The embodiment of the utility model also provides a vehicle.

The height adjusting mechanism comprises a connecting plate, a screw and a power assembly.

The connecting plate is provided with a first end and a second end which are oppositely arranged along the extending direction of the connecting plate, a matching part is arranged between the first end and the second end, the first end is used for being hinged with the seat frame bracket, and the second end is used for being hinged with the cushion frame; one end of the screw rod is hinged with the seat frame bracket; the power component is connected with the matching part, the power component is matched with the screw in a threaded mode, and the power component can drive the power component to move along the extending direction of the screw so as to change the distance between the first end and the matching part in the height direction of the seat. It will be appreciated that the power assembly may be moved in a direction extending the length of the screw to vary the spacing between the power assembly and the frame support in the height direction of the seat, thereby allowing the height of the seat cushion frame connected to the second end of the connecting plate to be adjusted. For example, the power assembly moves in the direction of the length extension of the screw toward the first end, the height of the seat decreases, the power assembly moves in the direction of the length extension of the screw toward the second end, and the height of the seat increases.

Compared with the structure of adopting the cooperation of the sector toothed plate and the gear of the rotating mechanism in the related art, the height adjusting mechanism provided by the embodiment of the utility model is mutually matched with the connecting plate through the screw rod and the power component, the power component is connected with the matching part of the connecting plate and hinged with the seat frame bracket through the first end of the connecting plate, one end of the screw rod is hinged with the seat frame bracket, the power component moves along the extending direction of the screw rod to drive the screw rod to rotate, and then the connecting plate is driven to rotate in the front-back direction by taking the first end as the rotation center. Thereby, the overall height of the cushion frame connected to the connection plate is raised. The height adjusting mechanism of the embodiment of the utility model realizes the adjustment of the height of the cushion frame in a hinged manner through the screw rod, the power assembly and the connecting plate, so that a welding process (in the related art, the sector toothed plate is welded on the rear transverse tube) is not needed when the seat is installed, and the seat cushion has the advantages of energy conservation and emission reduction. Meanwhile, compared with the cooperation of the toothed plate and the rotating mechanism, the problem of poor cooperation stability caused by overlarge gap between the toothed plate and the rotating mechanism due to long-term use can be solved. Therefore, the utility model adopts the screw and the power assembly to drive the height adjustment of the cushion frame, and has the advantage of good coordination stability.

The height adjusting mechanism provided by the embodiment of the utility model has the advantages of energy conservation, emission reduction and good stability.

In some embodiments, the power assembly includes a worm gear, a worm, and a housing, the worm gear and the worm each disposed within the housing, the housing connected to the mating portion, the worm gear engaged with the worm, the worm gear threadably engaged with the worm.

In some embodiments, the power assembly further comprises a motor, an output of the motor being connected to the worm.

In some embodiments, the housing case includes a case body and a connection member, the worm wheel and the worm are both disposed in the case body, a portion of the connection member is connected with the case body, and another portion of the connection member is connected with the mating portion.

In some embodiments, a portion of the connector is threaded onto the connector plate in a thickness direction of the connector plate.

In some embodiments, the connector is a rod-like structure, the connector extending in a direction from the containment box to the connection plate.

The seat framework of the embodiment of the utility model comprises a seat frame bracket, a seat cushion frame and a height adjusting mechanism of any one of the above.

The seat frame support comprises a slide rail support and a connecting rod assembly, and the slide rail support and the connecting rod assembly are sequentially arranged along the front-back direction of the seat; the seat cushion frame is provided with a seat cushion front end and a seat cushion rear end which are oppositely arranged along the front-back length direction of the seat, and the seat cushion front end is hinged with the connecting rod assembly; the first end of the connecting plate is hinged with the sliding rail support frame, the second end of the connecting plate is hinged with the rear end of the seat cushion, and one end of the screw rod is hinged with the seat frame support frame.

In some embodiments, the slide rail bracket includes a bracket body and a fold extending in a height direction of the seat in a direction away from the bracket body, the fold having a bracket hinge point and a bracket hinge portion thereon, a first end of the connection plate being hinged to the slide rail bracket at the bracket hinge point, one end of the screw being hinged to the bracket hinge portion, the bracket hinge portion being disposed close to the mating portion in a front-rear direction of the seat with respect to the bracket hinge point.

In some embodiments, the hem includes a hem body and the support hinge portion, one end of the support hinge portion is connected with the hem body, the other end of the support hinge portion extends in a direction close to the screw in a width direction of the seat, the screw is hinged with the support hinge portion, the screw includes a ring portion and a screw portion, the ring portion is sleeved on the support hinge portion, and the screw portion is in threaded fit with the power assembly.

In some embodiments, the seat frame further comprises a slide rail, the connecting rod assembly comprises a connecting rod and a sliding block, one end of the connecting rod is hinged to the front end of the seat cushion, the other end of the connecting rod is hinged to the sliding block, the sliding block is slidably matched with the slide rail along the extending direction of the slide rail, and the seat frame support is arranged on the slide rail.

In some embodiments, the seat frame further comprises a seat pan disposed on an area of the seat cushion frame proximate the front end of the seat cushion.

In some embodiments, the cushion frame includes a first support plate, a second support plate, and a first cross tube, the first support plate and the second support plate being disposed in spaced relation along a width direction of the seat, the first cross tube being connected between the first support plate and the second support plate, and the connecting plate being hinged with the first cross tube.

The seat of the embodiment of the utility model can comprise the seat frame of any one of the embodiments.

A vehicle according to an embodiment of the utility model may comprise a seat according to any of the embodiments described above.

Drawings

Fig. 1 is a schematic structural view of one state of a seat frame according to an embodiment of the present utility model.

Fig. 2 is a schematic view of the height adjustment mechanism of fig. 1.

Fig. 3 is a schematic structural view of another state of the seat frame of the embodiment of the utility model, with the cushion frame in the highest position.

Fig. 4 is a schematic structural view of another state of the seat frame of the embodiment of the utility model, with the cushion frame in the highest position.

Reference numerals:

a connecting plate 1; a first end 11; a second end 12; a fitting portion 13;

a screw 2; a loop portion 21; a screw portion 22;

a power assembly 3; a worm wheel (not shown); a worm (not shown); a housing box 31; a box body 311; a connector 312; a motor 32;

a slide rail bracket 4; a holder body 41; a hem 42;

a bracket hinge point 411; a bracket hinge 412;

a connecting rod assembly 5; a connecting rod 51; a slider 52;

a cushion frame 6; a first support plate 61; a second support plate 62; a first cross tube 63;

a bowl 7;

and a slide rail 8.

Detailed Description

Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

A seat height adjustment mechanism according to an embodiment of the present utility model is described below with reference to fig. 1 to 4.

The height adjusting mechanism of the embodiment of the utility model comprises a connecting plate 1, a screw 2 and a power assembly 3.

The connecting plate 1 is provided with a first end 11 and a second end 12 which are oppositely arranged along the extending direction, a matching part 13 is arranged between the first end 11 and the second end 12, the first end 11 is used for being hinged with the seat frame bracket, and the second end 12 is used for being hinged with the cushion frame 6; one end of the screw rod 2 is hinged with the seat frame bracket; the power component 3 is connected with the matching part 13, the power component 3 is in threaded matching with the screw rod 2, and the power component 3 can drive the power component to move along the extending direction of the screw rod 2 so as to change the distance between the first end 11 and the matching part 13 in the height direction of the seat. It will be appreciated that the power assembly 3 is movable along the length of the threaded rod 2 to vary the spacing between the power assembly 3 and the frame support in the height direction of the seat, thereby allowing the height of the seat cushion frame 6 connected to the second end 12 of the link plate 1 to be adjusted. For example, the power unit 3 is moved in a direction approaching the first end 11 along the length extending direction of the screw 2, and the height of the seat is lowered as shown in fig. 3; the power assembly 3 is moved in a direction of extension of the length of the screw 2 toward the second end 12, and the height of the seat is raised as shown in fig. 2.

Compared with the structure of adopting the cooperation of the sector toothed plate and the gear of the rotating mechanism in the related art, the height adjusting mechanism provided by the embodiment of the utility model is characterized in that the screw rod 2 and the power component 3 are mutually matched with the connecting plate 1, the power component 3 is connected with the matching part 13 of the connecting plate 1 and hinged with the seat frame bracket through the first end 11 of the connecting plate 1, one end of the screw rod 2 is hinged with the seat frame bracket, the power component 3 moves along the extending direction of the screw rod 2 to drive the screw rod 2 to rotate, and then the connecting plate 1 is driven to rotate in the front-back direction by taking the first end 11 as the rotation center. Thereby, the entire height of the cushion frame 6 connected to the connection plate 1 is raised. The height adjusting mechanism of the embodiment of the utility model realizes the adjustment of the height of the cushion frame 6 in a hinged manner through the screw rod 2, the power assembly 3 and the connecting plate 1, so that a welding process (in the related art, the sector toothed plate is welded on the rear transverse tube) is not needed during the installation of the seat, and the utility model has the advantages of energy conservation and emission reduction. Meanwhile, compared with the cooperation of the toothed plate and the rotating mechanism, the problem of poor cooperation stability caused by overlarge gap between the toothed plate and the rotating mechanism due to long-term use can be solved. Therefore, the utility model adopts the screw rod 2 and the power component 3 to drive the height adjustment of the cushion frame 6, and has the advantages of good coordination stability and long service life.

The height adjusting mechanism provided by the embodiment of the utility model has the advantages of energy conservation, emission reduction, good stability and long service life.

It will be appreciated that the web 1 may oscillate in the same plane. Specifically, the link plate 1 extends in the front-rear direction shown in fig. 1, and the link plate 1 swings in the front-rear direction of the seat with its first end 11 as a rotation center, changing the vertical height of the second end 12. Thereby realizing the adjustment of the height of the seat. The first end 11 can be understood as the area near the first end of the connection plate 1 and can be understood as the first end in this embodiment; likewise, the second end is also understood to mean the second end 12 in the present exemplary embodiment as the region close to the second end of the connection plate 1.

Alternatively, the connection board 1 may be made of metal, so as to improve the structural strength of the connection board 1.

As shown in fig. 1 to 3, the power assembly 3 includes a worm wheel (not shown), a worm (not shown), and a housing case 31, both of which are provided in the housing case 31, the housing case 31 is connected to the fitting portion 13, the worm wheel is engaged with the worm, and the worm wheel is screw-fitted with the worm.

In the height adjustment mechanism of the embodiment of the present utility model, the link plate 1 is required to swing in the front-rear direction of the seat when the height adjustment is performed, the worm is extended in the width direction of the seat (for example, the left-right direction shown in fig. 1) by dividing the power unit 3 into the worm wheel, the worm screw, and the housing box 31, that is, the adjustment in the height direction of the seat (for example, the up-down direction shown in fig. 1) is performed by the transverse running fit. Therefore, the height adjusting mechanism is prevented from occupying the size of the seat in the front-rear direction, and the device has the advantages of good flexibility in arrangement of parts and high arrangement convenience. In addition, the structure of the worm gear is adopted to realize the adjustment of the height of the seat, and the device has the advantages of compact structure and good transmission stability.

As shown in fig. 1 to 3, the power assembly 3 further includes a motor 32, and an output end of the motor 32 is connected to the worm. Therefore, the adjustment of the height of the seat can be realized through the rotation of the worm driven by the motor 32, and the degree of automation and convenience of the adjustment of the height of the seat are improved.

As shown in fig. 1 to 4, the housing box 31 includes a box body 311 and a connecting member 312, both worm gears and worms are provided in the box body 311, a part of the connecting member 312 is connected to the box body 311, and the other part of the connecting member 312 is connected to the fitting portion 13.

The height adjusting mechanism of the embodiment of the present utility model can provide a certain interval between the housing box 31 and the connection plate 1 in the width direction of the vehicle by providing the connection member 312 connected to the connection plate 1. Thereby, the problem of position interference of the connection plate 1 and the housing box 31 due to direct contact in the process of adjusting the height of the seat by the height adjusting mechanism is avoided.

The connection member 312 has a rod-like structure, and the connection member 312 extends in a direction from the housing box 31 to the connection plate 1. The height adjusting mechanism of the embodiment of the utility model has the advantage of simple structure by arranging the connecting piece 312 in a rod-shaped structure.

Specifically, the link 312 extends in the width direction of the seat, and the screw 2 and the power unit 3 are disposed on the side near the inside of the seat in the thickness direction of the link plate 1. This has the advantage of further saving the space occupied by the seat.

As shown in fig. 1 to 3, the seat frame of the embodiment of the utility model includes a seat frame bracket, a cushion frame 6, and a height adjusting mechanism of any one of the above.

The seat frame bracket comprises a slide rail bracket 4 and a connecting rod assembly 5, and is provided with a bracket hinge point 411 and a bracket hinge part 412; the cushion frame 6 has a cushion front end (e.g., the front end shown in fig. 1) and a cushion rear end (e.g., the rear end shown in fig. 1) disposed opposite to each other in the length direction thereof, the cushion front end being hinged with the link assembly 5; the first end 11 of the connecting plate 1 is hinged with the sliding rail bracket 4 at a bracket hinge point 411, the second end 12 of the connecting plate 1 is hinged with the rear end of the cushion, and one end of the screw 2 is hinged with a bracket hinge part 412.

The seat frame of the embodiment of the utility model realizes the adjustment of the height of the cushion frame 6 through the arranged height adjusting mechanism. Therefore, the seat framework provided by the embodiment of the utility model has the advantages of energy conservation, emission reduction and good stability.

As shown in fig. 1 to 3, the seat frame bracket includes a bracket body 41 and a folded edge 42, the folded edge 42 extending in a direction away from the bracket body 41 in a height direction of the seat, the folded edge 42 having a bracket hinge point 411 and a bracket hinge portion 412, the bracket hinge portion 412 being disposed close to the fitting portion 13 in a front-rear direction of the seat with respect to the bracket hinge point 411.

In the seat frame according to the embodiment of the present utility model, the seat frame bracket is divided into the bracket body 41 and the folded edge 42, and the bracket hinge portion 412 is provided near the fitting portion 13 in the front-rear direction of the seat with respect to the bracket hinge point 411. Thereby, it is possible to avoid the interference problem between the bracket hinge point 411 and the bracket hinge portion 412 in the width direction of the seat during the screw rotation.

Specifically, the folded edge 42 extends in the height direction of the seat, and the bracket body 41 may be fixed to the slide rail 8. Thus, both the bracket hinge point 411 and the bracket hinge portion 412 can be located above the slide rail 8. Therefore, the device has the advantage of high installation convenience.

As shown in fig. 1 to 4, the hem 42 includes a hem body and a bracket hinge portion 412, one end of the bracket hinge portion 412 is connected to the hem body, the other end of the bracket hinge portion 412 extends in a direction approaching the screw 2 in a width direction of the seat, the screw 2 is hinged to the bracket hinge portion 412, the screw 2 includes a loop portion 21 and a screw portion 22, the loop portion 21 is sleeved on the bracket hinge portion 412, and the screw portion 22 is screw-fitted with the power unit 3.

The seat frame according to the embodiment of the utility model is connected with the bracket hinge part 412 of the seat frame bracket by a sleeving manner through the ring part of the screw rod 2. Therefore, the method has the advantages of high connection convenience and high reliability.

Alternatively, the bracket hinge 412 may be a bracket hinge lever, which may be disposed in parallel with the link 312, and the bracket hinge lever and the link 312 may have the same length in the seat width direction. Thus, the both ends of the screw can be made to be at a considerable distance from the cushion frame in the width direction of the seat. Therefore, when the height of the seat is adjusted, the offset of the seat in the width direction is avoided, and the seat has the advantage of good structural stability.

The seat frame of the embodiment of the utility model further comprises a sliding rail 8 extending along the front-rear direction of the seat frame, the connecting rod assembly 5 comprises a connecting rod 51 and a sliding block 52, one end of the connecting rod 51 is hinged with the front end of the seat cushion, the other end of the connecting rod 51 is hinged with the sliding block 52, the sliding block 52 is in sliding fit on the sliding rail 8 along the extending direction of the sliding rail 8, and the seat frame bracket is in sliding fit on the sliding rail 8.

According to the seat framework provided by the embodiment of the utility model, the seat framework is in sliding fit on the sliding rail 8 through the seat framework bracket, and the sliding block 52 of the connecting rod assembly 5 is in sliding fit on the sliding rail 8, so that the adjustment of the whole seat framework in the front-rear direction can be realized.

The seat frame of the embodiment of the utility model further comprises a sitting basin 7 which is arranged on the area of the cushion frame 6 near the front end of the cushion. Therefore, the supporting area of the buttocks of the human body is increased, and the riding comfort of passengers is further improved.

As shown in fig. 1 to 4, the cushion frame 6 includes a first support plate 61, a second support plate 62, and a first cross tube 63, the first support plate 61 and the second support plate 62 are disposed at a distance in the width direction of the seat, the first cross tube 63 is connected between the first support plate 61 and the second support plate 62, and the connecting plate 1 is hinged with the first cross tube 63. Specifically, one end of the first transverse tube 63 is connected to the first support plate 61, the other end of the first transverse tube 63 is connected to the second support plate 62, and the second end 12 of the connection plate 1 is connected.

The seat frame of the embodiment of the utility model is connected between the first support plate 61 and the second support plate 62 through the first transverse tube 63, which is helpful for improving the consistency of the cushion frame 6 in the height lifting. Therefore, the structure has the advantage of good structural stability.

Further, the cushion frame 6 may further include a second cross tube, and the second cross tube, the first support plate 61, the second support plate 62, and the first cross tube 63 may be enclosed into a rectangular frame body. Thereby further improving the structural stability of the seat frame.

The seat of the embodiment of the utility model comprises the seat frame in any one of the embodiments. The seat provided by the embodiment of the utility model has the advantages of energy conservation, emission reduction and good stability.

The vehicle of the embodiment of the utility model comprises a cockpit and the seat arranged in the cockpit. The vehicle provided by the embodiment of the utility model has the advantages of energy conservation, emission reduction and good stability.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (12)

1. A seat height adjustment mechanism, comprising:

the connecting plate is provided with a first end and a second end which are oppositely arranged along the extending direction of the connecting plate, a matching part is arranged between the first end and the second end, the first end is used for being hinged with the seat frame bracket, and the second end is used for being hinged with the cushion frame;

one end of the screw is hinged with the seat frame bracket; and

the power component is connected with the matching part and matched with the screw thread, and the power component can drive the power component to move along the extending direction of the screw.

2. The seat height adjustment mechanism according to claim 1, wherein the power assembly comprises a worm wheel, a worm and a housing case, both of which are provided in the housing case, the screw for receiving power, the housing case being connected to the fitting portion, the worm wheel being engaged with the worm, the worm wheel being screw-fitted with the screw.

3. The seat height adjustment mechanism according to claim 2, wherein the housing case includes a case body and a connecting member, the worm wheel and the worm are both provided in the case body, a portion of the connecting member is connected to the case body, and another portion of the connecting member is connected to the fitting portion.

4. A seat height adjustment mechanism according to claim 3, wherein a portion of the link is provided through the link plate in a thickness direction of the link plate.

5. A seat height adjustment mechanism according to claim 3, wherein the connection member is a rod-like structure, the connection member extending in a direction from the housing box to the connection plate.

6. A seat frame, comprising:

the seat frame support comprises a sliding rail support and a connecting rod assembly, and the sliding rail support and the connecting rod assembly are sequentially arranged along the front-back direction of the seat;

the seat cushion frame is provided with a seat cushion front end and a seat cushion rear end which are oppositely arranged along the front-back length direction of the seat, and the seat cushion front end is hinged with the connecting rod assembly; and

the height adjustment mechanism according to any one of claims 1-5, wherein a first end of the connecting plate is hinged to the slide rail bracket, the second end of the connecting plate is hinged to the seat cushion rear end, and one end of the screw is hinged to the seat frame bracket.

7. The seat frame according to claim 6, wherein the slide rail bracket includes a bracket body and a fold extending in a direction away from the bracket body along a height direction of the seat, the fold having a bracket hinge point and a bracket hinge portion thereon, the first end of the connection plate being hinged to the slide rail bracket at the bracket hinge point, one end of the screw being hinged to the bracket hinge portion, the bracket hinge portion being disposed near the fitting portion in a front-rear direction of the seat with respect to the bracket hinge point.

8. The seat frame according to claim 7, wherein the hemming includes a hemming body and the bracket hinge portion, one end of the bracket hinge portion is connected to the hemming body, the other end of the bracket hinge portion extends in a direction approaching the screw in a width direction of the seat, the screw is hinged to the bracket hinge portion, the screw includes a loop portion and a screw portion, the loop portion is sleeved on the bracket hinge portion, and the screw portion is screw-engaged with the power unit.

9. The seat frame according to claim 6, further comprising a slide rail, wherein the link assembly comprises a link lever and a slider, one end of the link lever is hinged to the front end of the seat cushion, the other end of the link lever is hinged to the slider, the slider is slidably fitted on the slide rail along the extending direction of the slide rail, and the seat frame bracket is provided on the slide rail;

and/or, the cushion frame also comprises a basin, and the basin is arranged on the area of the cushion frame close to the front end of the cushion.

10. The seat frame of claim 6, wherein the seat cushion frame includes a first support plate, a second support plate, and a first cross tube, the first support plate and the second support plate being disposed in spaced relation along a width direction of the seat, the first cross tube being connected between the first support plate and the second support plate, and the connecting plate being hinged with the first cross tube.

11. A seat comprising a seat frame according to any one of claims 6-10.

12. A vehicle comprising a cockpit and the seat of claim 11 mounted in the cockpit.