CN209938391U - Passenger car seat with shock attenuation effect - Google Patents

Abstract

The utility model discloses a passenger car seat with shock attenuation effect, including slide rail set spare and seat skeleton, be equipped with damper between slide rail set spare and the seat skeleton, slide rail set spare is including the lower slide rail and the last slide rail that match each other, damper is including upper and lower just to the upper ledge and the lower frame that set up to and be located the flexible subassembly of spring between upper ledge and the lower frame, wherein lower frame and last slide rail fixed connection, seat skeleton then fixed stay on the upper ledge, damper still disposes electric actuator for the value of the flexible subassembly of adjustment spring is adjusted. Through changing damper and guiding mechanism, adjust whole installation layout structure simultaneously, make it be adapted to pick up, cross country etc. and make this type of passenger car seat have good damping performance, improve and drive the travelling comfort, have splendid user experience simultaneously and feel.

Description

Passenger car seat with shock attenuation effect

Technical Field

The utility model relates to a car seat technical field, concretely relates to passenger car seat with shock attenuation effect.

Background

The vehicle body structure mainly comprises a vehicle body and a non-vehicle body, wherein urban vehicles such as cars and most SUVs are vehicle bodies, the riding comfort is high, heavy-load and off-road vehicles such as trucks, pickup trucks and SUVs which are hard-to-send are non-vehicle bodies, the riding comfort is poor due to the limitation of the vehicle body structure and the application, in order to improve the situation, a suspension mechanism is usually arranged on a truck seat to improve the driving comfort, and the pickup trucks and SUVs which are hard-to-send are usually conventional car seats, so that the vibration transmitted by the vehicle body cannot be well absorbed, and the riding comfort is relatively poor.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a passenger car seat with shock attenuation effect is fit for the pick up, motorcycle types such as cross country vehicle improve its riding comfort.

In order to achieve the above purpose, the utility model discloses technical scheme as follows:

the utility model provides a passenger car seat with shock attenuation effect, includes slide rail set spare and seat skeleton, its key lies in: be equipped with damper between slide rail set spare and the seat skeleton, slide rail set spare is including the lower slide rail and the last slide rail that match each other, damper is including upper and lower just to the upper ledge and the lower frame that set up to and be located the flexible subassembly of spring between upper ledge and the lower frame, wherein lower frame and last slide rail fixed connection, seat skeleton then fixed stay is on the upper ledge, damper still disposes electric adjusting mechanism for the value of the flexible subassembly of adjustment spring is worth.

Structure more than adopting sets up damper unit in the sliding rail set top, and the slide rail then directly with vehicle bottom board fixed connection, can improve the holistic stability of seat relatively, simultaneously because adopt electric adjusting mechanism to damper unit well spring subassembly that stretches out and draws back to adjust, more be adapted to the less activity space of passenger car, have more advanced user experience and feel, further improve the travelling comfort of driving of passenger car simultaneously.

Preferably, the method comprises the following steps: the two sides of the upper frame are provided with upper chutes which are arranged oppositely along the length direction of the upper frame, the two sides of the lower frame are provided with lower chutes which are arranged oppositely along the length direction of the lower frame, and the rear ends of the upper frame and the lower frame are provided with an upper connecting shaft and a lower connecting shaft which are arranged oppositely;

the symmetry is provided with two sets of shock attenuation crotch between upper ledge and the lower frame, the shock attenuation crotch includes middle part articulated outside board and interior sideboard, two both ends are respectively through lower sliding shaft and last connecting axle interconnect around the outside board two both ends are through last sliding shaft and lower connecting axle interconnect respectively around the inside board, lower sliding shaft both ends and lower chute sliding fit, go up the sliding shaft both ends and go up chute sliding fit. Through the shock attenuation crotch of articulated setting to the mode of setting of the fixed other end activity of one end, realize the floating support to the upper ledge, the height position of adjustable upper ledge through sliding simultaneously, thereby realize the altitude mixture control of seat.

Preferably, the method comprises the following steps: the spring telescopic assembly comprises two tension springs symmetrically arranged along the length direction of the upper frame, the electric adjusting mechanism comprises an installation frame and a screw rod which are arranged along the length direction of the upper frame, and a motor used for driving the screw rod to rotate, wherein the installation frame is fixedly connected with the upper frame, adjusting grooves which are opposite to each other are formed in two sides of the front end of the installation frame, a tension spring plate which is in sliding fit with the adjusting grooves is arranged in the adjusting grooves, the tension spring plate is arranged along the length direction of the upper frame, a spring hanging shaft is arranged at the rear end of the installation frame, and the front end and the rear end of each tension spring are respectively fixed on the tension spring plate and;

the seat is characterized in that a nut seat in threaded fit with the lead screw is fixedly arranged on the tension spring plate, the motor is connected with the lead screw through a worm gear transmission mechanism, and a switch is arranged on a side plate on one side of the seat framework and used for controlling the motor.

Scheme more than adopting improves the flexible stability of adjusting of extension spring greatly, and the motor drives the lead screw through turbine worm drive mechanism and adjusts simultaneously, has improved the precision and the stationarity of adjusting, and arranges the switch in on the other curb plate, more makes things convenient for the driver and passenger to operate the adjustment, improves the travelling comfort of driving and taking.

Preferably, the method comprises the following steps: the output end of the turbine worm-gear transmission mechanism is provided with a quick connector, the quick connector is provided with a spring pin arranged along the radial direction of the quick connector, and one end of the screw rod close to the turbine worm-gear transmission mechanism is provided with a pin hole matched with the spring pin. By adopting the scheme, the assembly and disassembly efficiency of the screw rod and the worm transmission mechanism of the turbine is greatly improved, the screw rod and worm transmission mechanism is particularly suitable for replacing parts in the later period, is convenient to maintain and has a simple structure and lower cost.

Preferably, the method comprises the following steps: two be equipped with damping spring between the extension spring, damping spring sets up along upper ledge length direction to support on the lower frame through the shock attenuation arm, the slope of shock attenuation arm sets up to extend towards the lower frame front end, shock attenuation arm upper end is articulated with the mounting bracket, spring peg and damping spring fixed connection correspond spring peg position on the shock attenuation arm and are equipped with the spacing groove, the shock attenuation arm lower end has the gyro wheel that sets up along its width direction, damping spring's damping rod and lead screw fixed connection. By adopting the scheme, the stability of the damping spring is favorably improved, the damping spring and the screw rod are basically positioned on the same horizontal plane, the inclination angle of the damping spring relative to the upper frame is smaller, the left-right shaking amplitude of the damping spring is reduced, and the service life of the damping spring is favorably prolonged.

Preferably, the method comprises the following steps: the position of the lower frame corresponding to the roller at the lower end of the damping arm is provided with a limiting piece, the limiting piece and the lower frame surround to form a movable groove so as to limit the roller stroke, and the height of the movable groove is adapted to the diameter of the roller. By adopting the scheme, the movable range of the roller is limited mainly through the movable groove, the centering state of the damping spring can be further ensured, the left and right shaking is prevented, and meanwhile, the upper and lower deflection amplitudes are limited, so that the damping spring has better stability.

Preferably, the method comprises the following steps: the damping rod is connected with the screw rod through a connecting pipe, the connecting pipe is of a hollow structure, and the damping rod and the screw rod respectively extend into two ends of the connecting pipe and are respectively fixed through fixing pins. By adopting the scheme, the disassembly and assembly efficiency of the screw rod and the damping spring is improved, and later-period maintenance and repair are facilitated.

Preferably, the method comprises the following steps: both ends have along the preceding installation journal stirrup and the back installation journal stirrup that its length direction symmetry set up around the lower frame, preceding installation journal stirrup and back installation journal stirrup slope extend up, and with go up slide rail fixed connection, the lower frame is located between two sets of slide rail set spare, and with last slide rail parallel arrangement. By adopting the scheme, the occupied space of the damping assembly can be greatly reduced, the space utilization rate is improved, and the damping assembly is more suitable for passenger vehicle models.

Preferably, the method comprises the following steps: the front end and the rear end of the upper frame are provided with a front supporting lug and a rear supporting lug which are symmetrically arranged along the length direction of the upper frame, the two symmetrically arranged supporting lugs are provided with front supporting grooves which are oppositely arranged, and the two symmetrically arranged rear supporting lugs are provided with rear supporting grooves which are oppositely arranged;

the front end of the bottom of the seat framework is provided with a front cross beam matched with the front supporting groove, and the rear end of the bottom of the seat framework is provided with a rear cross beam matched with the rear supporting groove. By adopting the scheme, the seat framework can be stably supported, and the seat framework is kept in a good stable state in the working process of the damping assembly.

Preferably, the method comprises the following steps: and the rear end of the upper sliding rail is provided with a lower fixing structure of the safety belt. By adopting the scheme, the lower fixing structure of the safety belt can slide along with the upper sliding rail, the tightness of the safety belt is only influenced by the floating of the damping component, and the better tightness feeling of drivers and passengers is ensured.

Compared with the prior art, the beneficial effects of the utility model are that:

adopt the utility model provides a passenger car seat with shock attenuation effect through changing damper and guiding mechanism, adjusts the overall installation layout structure simultaneously, makes it be adapted to pick up, cross-country etc. makes this type of passenger car seat have good damping performance, improves and drives the travelling comfort, has splendid user experience simultaneously and feels.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a schematic view of a structure of a shock absorbing assembly and a slide rail assembly;

FIG. 4 is a schematic diagram of the switch position;

FIG. 5 is a cross-sectional view of the spring expansion assembly and the electric adjustment mechanism;

FIG. 6 is an exploded view of the spring retraction assembly and the electric adjustment mechanism;

FIG. 7 is a side view of FIG. 6;

FIG. 8 is a schematic view of a fitting structure of the mounting frame and the upper frame;

FIG. 9 is a schematic view of the engagement structure of the shock arm and the mounting bracket;

FIG. 10 is an enlarged view of the screw rod and quick connector mating structure;

FIG. 11 is a schematic view of a bottom structure of a seat frame;

fig. 12 is a schematic view of the installation structure of the present invention.

Detailed Description

The present invention will be further described with reference to the following examples and accompanying drawings.

Referring to fig. 1 to 12, the passenger car seat with shock absorption effect mainly comprises a seat frame 2, a shock absorption assembly 3 and a sliding rail assembly 1 which are sequentially arranged from top to bottom and fixedly connected with each other, wherein the shock absorption assembly 3 is also provided with an electric adjusting mechanism 5, as shown in the figure, the slide rail assembly 1 mainly comprises an upper slide rail 11 and a lower slide rail 10 which are matched with each other, the shock absorption assembly 3 mainly comprises an upper frame 3a and a lower frame 3b which are arranged oppositely up and down, and a damping fork frame connecting the upper frame 3a and the lower frame 3b and a spring expansion assembly 4 disposed between the upper frame 3a and the lower frame 3b, an electric adjustment mechanism 5 is mainly used for electrically adjusting the spring expansion assembly 4, change the power value of spring telescopic assembly 4 promptly to adjust damper assembly 3's whole shock attenuation performance, make it and bearing adapt to each other, improve user experience and feel and ride the travelling comfort.

Referring to fig. 5 to 8, two sets of damping forks are symmetrically disposed between an upper frame 3a and a lower frame 3b along a length direction thereof, the damping forks in this embodiment are two-piece type and mainly include an outer side plate 3c and an inner side plate 3d, which are hinged to each other at a middle portion, as shown in the drawings, upper and lower connecting shafts 30 and 31 are disposed at rear ends of the upper and lower frames 3a and 3b in opposite directions, the upper connecting shaft 30 is disposed along a width direction of the upper frame 3a and has both ends in a relatively fixed state without sliding along the length direction of the upper frame 3a, similarly, the lower connecting shaft 31 is disposed along the width direction of the lower frame 3b and has both ends fixedly connected to the lower frame 3b, and rear ends (in this embodiment, one end close to a seat back is a rear end and one end far from the seat back is a front end) of the outer side plate 3c of the two sets of damping forks are respectively hinged to both ends of the upper connecting shaft, and the inner side plates 3d of the two shock absorption fork frames are hinged with the two ends of the lower connecting shaft 31 respectively.

The front ends of the two outer side plates 3c are hinged with the two ends of the lower sliding shaft 32 at the same time, the lower sliding shaft 32 is arranged along the width direction of the lower frame 3b, the two sides of the front end of the lower frame 3b are provided with lower sliding grooves 3b0 arranged along the length direction, the two ends of the lower sliding shaft 32 are both sleeved with lower pulleys, the lower pulleys are embedded into the lower sliding grooves 3b0 which are opposite, and the two sliding grooves are in sliding fit, similarly, the two sides of the front end of the upper frame 3a are provided with upper sliding grooves 3a0 which are opposite, the front ends of the two inner side plates 3d are hinged with the upper sliding shaft 33 at the same time, in the embodiment, the upper sliding shaft 33 is in a U-shaped structure, the two ends of the upper sliding shaft extend opposite to the upper sliding groove 3a0 after being bent, the end part of the upper pulley which is also sleeved with the upper sliding pulleys which are in sliding fit with the upper sliding grooves 3a0, after the arrangement, when the lower, furthermore, since the upper sliding shaft 33 is substantially U-shaped, it provides an effective space for the spring retraction assembly 4 to be installed.

In this embodiment, in order to realize the control of the telescopic stroke of the shock-absorbing fork, the limiting structure 38 is arranged in the upper chute 3a0, one side of the limiting structure 38 close to the front end of the upper chute 3a0 is provided with a rubber sheet, and the distance between the limiting structure 38 and the upper chute 3a0 forms the actual slidable distance of the upper pulley, so as to achieve the purpose of limiting the telescopic range of the shock-absorbing fork, and meanwhile, the rubber sheet can reduce the collision to the upper pulley, and abnormal sound in the using process, and in the same way, in order to prevent the shock-absorbing fork from colliding in the lifting process, the upper frame 3a and the lower frame 3b, so that four corners of the lower frame 3b are provided with the crash pads 34 extending upwards, and the crash pads 34 are also made of rubber.

Referring to fig. 4 to 10, the spring expansion assembly 4 of this embodiment is located between the upper frame 3a and the lower frame 3b, and mainly includes two tension springs 40 symmetrically disposed along the length direction of the upper frame 3a, and a damping spring 41 located between the two tension springs 40, as shown in the figure, the middle of the upper frame 3a has a mounting bracket 50 disposed along the length direction thereof, the mounting bracket 50 is fixedly connected to the upper frame 3a by screws, the mounting bracket 50 has a U-shaped groove 501 disposed along the length direction thereof, the U-shaped groove 501 has a downward opening and is open at front and rear ends thereof, the front end of the mounting bracket 50 has an adjustment groove 500 penetrating through both sides in the thickness direction thereof, a tension spring plate 52 is disposed in the adjustment groove 500, the tension spring plate 52 is disposed along the width direction of the upper frame 3a and is located on the same vertical plane with the center line of the mounting bracket 50, the tension spring plate 52 is movably supported in the adjustment, the two ends of the tension spring plate 52 penetrate through the adjusting groove 500 to be equal, the rear end of the support frame 50 is provided with a spring hanging shaft 53 arranged along the width direction of the support frame, the spring hanging shaft 53 and the support frame 50 are relatively fixed, the two tension springs 40 are symmetrically arranged on the left side and the right side of the mounting frame 50, the front end and the rear end of each tension spring 40 are respectively hung on the tension spring plate 52 and the spring hanging shaft 53, and when the tension spring plate 52 slides along the adjusting groove 500, the pretension force of each tension spring 40 is changed accordingly.

The electric adjusting mechanism 5 mainly comprises a motor 5a and a worm gear transmission mechanism 5b connected with the motor 5a, the output end of the worm gear transmission mechanism 5b is connected with a screw rod 51, the screw rod 51 is arranged along the length direction of the U-shaped groove 501 and extends into the U-shaped groove 501, the tension spring plate 52 in the embodiment has two downward sheets which are opposite and fixedly connected, a nut seat 54 matched with the screw rod 51 is fixedly arranged between the two sheets, and when the motor 5a works, the tension spring plate 52 can be driven by the screw rod 51 to slide along the adjusting groove 500.

In order to realize the quick assembly and disassembly of the screw 51 and the worm gear transmission mechanism 5b and facilitate the later maintenance, a quick connector 55 is arranged at the output end of the worm gear transmission mechanism 5b, a spring pin 550 is arranged on the quick connector 55 along the radial direction of the quick connector 55, one side of two ends of the spring pin 550 close to the mounting rack 50 is provided with a slope, the end part of the screw 51 is provided with a pin hole 510 matched with the spring pin 550, during the installation, the quick connector 55 is fixedly connected with the output end of the worm gear transmission mechanism 5b firstly, and then the screw 51 is just opposite to the screw 51, and the two are oppositely inserted, so that the spring pin 550 can be inserted into the pin hole 510.

In the present application, the damping spring 41 is located in the U-shaped groove 501, in order to achieve the purpose that the damping spring 41 is basically horizontally arranged at the level of the tension spring 40, and reduce the vertical inclination angle thereof, firstly, the rear end of the damping spring 41 is supported by the damping arm 42 in a floating manner, as shown in the figure, the damping arm 42 is arranged in an inclined manner, the front end of the damping arm extends in an inclined manner toward the front end of the lower frame 3b, the rear end of the damping arm is hinged with the mounting frame 50 through the mounting shaft 421, the mounting shaft 421 can rotate as a rotation center, the lower end of the damping arm is provided with the roller 43 arranged along the width direction, the roller 43 and the damping arm 42 can rotate relatively, the lower frame 3b is provided with the limiting piece 44 at a corresponding position, referring to figure 5, the limiting piece 44 is n-shaped, the limiting piece and forms a sliding groove 45 with the bottom wall of the lower frame 3b in a surrounding manner, the, make gyro wheel 43 have certain home range in activity groove 45, the slope of shock attenuation arm 42 sets up to form the triangle-shaped stable support to damping spring 41, simultaneously because gyro wheel 43 and activity groove 45's cooperation has realized the unsteady support to damping spring 41 again, the greatly reduced damping spring 41's the range of rocking from side to side and rock from top to bottom, reduce the damage to damping spring 41 in accommodation process or the use, prolong its life greatly.

Damping spring 41's damping rod 410 extends forward along the length direction of U-shaped groove 501 to rear end fixed connection through connecting pipe 46 and lead screw 51, as shown in the figure, connecting pipe 46 is the open hollow column structure in both ends, lead screw 51 and damping rod 410 stretch into wherein from the both ends of connecting pipe 46 respectively, and fix respectively through the fixed pin, the accessible changes the length of connecting pipe 46 like this in order to adapt to the damping spring 41 of different models, and reduce the change to damping spring 41, make whole assembly structure have good adaptability, reduce development or manufacturing cost.

In addition, the upper side of the rear end of the damping arm 42 is provided with a limiting groove 420 formed by downward sinking, the limiting groove 420 is of an arc structure, the middle part of the spring hanging shaft 53 is sleeved at the rear end of the damping spring 41, and the two ends of the spring hanging shaft 53 are supported on the limiting grooves 420 at the two sides of the damping arm 42.

Referring to fig. 1 to 12, in order to make the present invention more suitable for passenger cars, a great change is also made in the mounting structure, as shown in the figure, the front mounting lugs 35 are symmetrically arranged on the two sides of the front end of the lower frame 3b, the rear mounting lugs 36 are symmetrically arranged on the two sides of the rear end, the front mounting lugs 35 and the rear mounting lugs 36 are inclined upwards and extend to the same height, and then has coupling portions extending horizontally in the width direction of the lower frame 3b, each of which is fixedly coupled with the upper rail 11 by means of a screw, so that, after being arranged, the lower frame 3b and the upper rail 11 are parallel to each other, and because the connection is made by the obliquely arranged front and rear mounting lugs 35 and 36, then lower frame 3b sinks relatively, actually just is located between two slide rail set 1, and make full use of slide rail set 1's high space is favorable to reducing the whole focus of seat, more is adapted to the installation in the narrow and small space of passenger car simultaneously.

In order to ensure the stability of the seat frame 2 during adjustment and use, in this embodiment, the top of the upper frame 3a is also provided with front supporting lugs 3e and rear supporting lugs 3f for stably supporting the seat frame 2, the front supporting lugs 3e are symmetrically arranged on two sides of the front end of the upper frame 3a, the rear supporting lugs 3f are symmetrically arranged on two sides of the rear end of the upper frame 3a, as shown in the figure, the bottom of the seat frame 2 is provided with a front cross beam 23 and a rear cross beam 24 at positions corresponding to the front supporting lugs 3e and the rear supporting lugs 3f, the front cross beam 23 and the rear cross beam 24 are both fixedly arranged along the width direction of the seat frame 2, the front supporting lugs 3e are provided with front supporting grooves 3e0 corresponding to the front cross beam 23, similarly, the rear supporting lugs 3f0 corresponding to the rear cross beam 24 are provided on the rear supporting lugs 3f, the front supporting grooves 3e0 and the rear supporting grooves 3f0 are both have arc-shaped structures, the difference between the two is that the opening of the front supporting groove 3e0 faces upwards, the opening of the rear supporting groove 3f0 faces forwards, when the seat is installed, the front cross beam 23 is embedded into the front supporting groove 3e0 facing right, the rear cross beam 24 is embedded into the rear supporting groove 3f0 facing right, and then the seat framework 2 and the upper frame 3a are fixedly connected through other screws or fixing structures, so that the stability of the seat framework 2 is improved, and the shaking or abnormal sound of the damping assembly 3 during operation is reduced.

Referring to fig. 1, fig. 2 and fig. 12, the front and back both ends of lower slide rail 10 are equipped with preceding stationary blade 12 and rear fixing blade 13 respectively, wherein preceding stationary blade 12 is higher than rear fixing blade 13 outstanding height downwards, the position that corresponds preceding stationary blade 12 and rear fixing blade 13 on vehicle bottom plate 6 is equipped with preceding mounting point 60 and the rear mounting point 61 that matches with it, and preceding mounting point 60 is slightly higher than rear mounting point 61, like this when lower slide rail 10 is fixed to vehicle bottom plate 6, lower slide rail 10 is the tilt state, its front end is slightly higher than the rear end, make the seat rear end slightly lower than the front end, the focus is whole to the below removal of back, and the focus is relatively stable, be favorable to guaranteeing seat overall stability.

Meanwhile, in order to facilitate adjustment by a driver, a switch 22 is arranged on a side plate 21 on one side of the seat frame 2, the switch 22 is connected with the motor 5a, and can control various working conditions of the motor 5a, so that the working state of the screw rod 51 is controlled, and the purpose of adjusting the spring telescopic assembly 4 is achieved, meanwhile, the lower safety belt fixing structure 20 is arranged at the rear end of the left side of the lower frame 3b, as shown in the figure, a mounting piece 37 is simultaneously connected to a rear mounting support lug 36 of the lower frame 3b, the mounting piece 37 extends upwards, and further the lower safety belt fixing structure 20 is fixedly arranged at the top of the mounting piece 37, so that after the arrangement, the lower safety belt fixing structure 20 can slide along with the upper slide rail 11, the tightness of the safety belt is only influenced by the damping assembly 3, and has better user experience compared with the arrangement on the vehicle bottom plate 6 or the lower slide rail 10, is more comfortable.

During installation, the sliding rail component 1 can be firstly installed on the vehicle bottom plate 6, then the assembled shock absorption component 3 is installed on the upper sliding rail 11, finally the seat framework 2 is fixed on the upper frame 3a, and the electric adjusting mechanism 5 is installed at the same time, the motor 5a is connected with the switch 22 on the side plate 21, during use, the working condition of the motor 5a is controlled through the switch 22, so that the tension spring plate 52 is driven to slide back and forth in the adjusting groove 500, and the damping rod 410 is driven to rotate forwards or backwards, so that the force values of the tension spring 40 and the damping spring 41 can be adjusted simultaneously, namely, the integral tightness of the shock absorption component 3 is adjusted, the comprehensive adjustment of the shock absorption performance is realized according to the received gravity, and because the shock absorption arm 42 is arranged, the centering degree and the levelness of the damping spring 41 are fully ensured in the adjusting or using process, the pressure resistance of the shock absorption component is enhanced, the distortion damage is reduced, greatly prolonging the service life.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.

Claims (9)

1. The utility model provides a passenger car seat with shock attenuation effect, includes slide rail set spare (1) and seat skeleton (2), its characterized in that: the shock absorption assembly (3) is arranged between the sliding rail assembly (1) and the seat framework (2), the sliding rail assembly (1) comprises a lower sliding rail (10) and an upper sliding rail (11) which are matched with each other, the shock absorption assembly (3) comprises an upper frame (3a) and a lower frame (3b) which are arranged vertically and are opposite to each other, and a spring telescopic assembly (4) which is positioned between the upper frame (3a) and the lower frame (3b), wherein the lower frame (3b) is fixedly connected with the upper sliding rail (11), the seat framework (2) is fixedly supported on the upper frame (3a), and the shock absorption assembly (3) is further provided with an electric adjusting mechanism (5) for adjusting the force value of the spring telescopic assembly (4);

both ends have preceding installation journal stirrup (35) and back installation journal stirrup (36) that set up along its length direction symmetry around lower frame (3b), preceding installation journal stirrup (35) and back installation journal stirrup (36) slope extend up, and with go up slide rail (11) fixed connection, lower frame (3b) are located between two sets of slide rail set spare (1), and with last slide rail (11) parallel arrangement.

2. Passenger car seat with a shock-absorbing effect according to claim 1, characterized in that: the two sides of the upper frame (3a) are provided with upper sliding chutes (3a0) which are arranged oppositely along the length direction, the two sides of the lower frame (3b) are provided with lower sliding chutes (3b0) which are arranged oppositely along the length direction, and the rear ends of the upper frame (3a) and the lower frame (3b) are provided with an upper connecting shaft (30) and a lower connecting shaft (31) which are arranged oppositely;

the symmetry is provided with two sets of shock attenuation crotch between upper ledge (3a) and lower frame (3b), the shock attenuation crotch includes middle part articulated outside board (3c) and inside board (3d), two both ends are respectively through lower sliding shaft (32) and last connecting axle (30) interconnect around outside board (3c), two both ends are respectively through last sliding shaft (33) and lower connecting axle (31) interconnect around inside board (3d), lower sliding shaft (32) both ends and lower spout (3b0) sliding fit, go up sliding shaft (33) both ends and last spout (3a0) sliding fit.

3. A passenger car seat with a shock-absorbing effect according to claim 2, wherein: the spring telescopic assembly (4) comprises two tension springs (40) symmetrically arranged along the length direction of an upper frame (3a), the electric adjusting mechanism (5) comprises an installation frame (50) and a lead screw (51) which are arranged along the length direction of the upper frame (3a), and a motor (5a) used for driving the lead screw (51) to rotate, wherein the installation frame (50) is fixedly connected with the upper frame (3a), adjusting grooves (500) which are just opposite to each other are formed in two sides of the front end of the installation frame (50), a tension spring plate (52) in sliding fit with the adjusting grooves (500) is arranged in the adjusting grooves (500), the tension spring plate (52) is arranged along the length direction of the upper frame (3a), a spring hanging shaft (53) is arranged at the rear end of the installation frame (50), and the front end and the rear end of each tension spring (40) are respectively fixed on the tension spring plate (52) and the spring;

the spring pulling plate (52) is fixedly provided with a nut seat (54) in threaded fit with the screw rod (51), the motor (5a) is connected with the screw rod (51) through a worm gear transmission mechanism (5b), a side plate (21) on one side of the seat framework (2) is provided with a switch (22), and the switch (22) is used for controlling the motor (5 a).

4. A passenger car seat with a shock-absorbing effect according to claim 3, wherein: the output end of the turbine worm-gear transmission mechanism (5b) is provided with a quick joint (55), the quick joint (55) is provided with a spring pin (550) arranged along the radial direction of the quick joint, and one end of the screw rod (51) close to the turbine worm-gear transmission mechanism (5b) is provided with a pin hole (510) matched with the spring pin (550).

5. A passenger car seat with a shock-absorbing effect according to claim 4, wherein: two be equipped with damping spring (41) between extension spring (40), damping spring (41) set up along upper ledge (3a) length direction to support on lower frame (3b) through shock attenuation arm (42), shock attenuation arm (42) slope sets up to extend towards lower frame (3b) front end, shock attenuation arm (42) upper end is articulated with mounting bracket (50), spring hanging shaft (53) and damping spring (41) fixed connection correspond spring hanging shaft (53) position on shock attenuation arm (42) and are equipped with spacing groove (420), shock attenuation arm (42) lower extreme has gyro wheel (43) along its width direction setting, damping rod (410) and lead screw (51) fixed connection of damping spring (41).

6. Passenger car seat with a shock-absorbing effect according to claim 5, characterized in that: the position of the lower end roller (43) of the damping arm (42) on the lower frame (3b) is provided with a limiting piece (44), the limiting piece (44) and the lower frame (3b) surround to form a movable groove (45) so as to limit the stroke of the roller (43), and the height of the movable groove (45) is adapted to the diameter of the roller (43).

7. Passenger car seat with a shock-absorbing effect according to claim 5, characterized in that: damping rod (410) link to each other with lead screw (51) through connecting pipe (46), connecting pipe (46) are hollow structure, damping rod (410) and lead screw (51) stretch into the both ends of connecting pipe (46) respectively to it is fixed respectively through the fixed pin.

8. Passenger car seat with a shock-absorbing effect according to claim 1 or 2, characterized in that: the front end and the rear end of the upper frame (3a) are provided with a front supporting lug (3e) and a rear supporting lug (3f) which are symmetrically arranged along the length direction of the upper frame, the two symmetrically arranged supporting lugs (3e) are provided with front supporting grooves (3e0) which are oppositely arranged, and the two symmetrically arranged rear supporting lugs (3f) are provided with rear supporting grooves (3f0) which are oppositely arranged;

the front end of the bottom of the seat frame (2) is provided with a front cross beam (23) matched with the front supporting groove (3e0), and the rear end is provided with a rear cross beam (24) matched with the rear supporting groove (3f 0).

9. A passenger car seat with a shock-absorbing effect according to any one of claims 1 to 7, wherein: the rear end of the upper slide rail (11) is provided with a lower fixing structure (20) of the safety belt.

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