CN210083006U

CN210083006U - Convenient car seat of preventing diving who adjusts

Info

Publication number: CN210083006U
Application number: CN201920398371.8U
Authority: CN
Inventors: 莫易敏; 高烁; 刘青春
Original assignee: Wuhan University of Technology WUT
Current assignee: Wuhan University of Technology WUT
Priority date: 2019-03-27
Filing date: 2019-03-27
Publication date: 2020-02-18
Anticipated expiration: 2029-03-27

Abstract

The utility model relates to a conveniently adjusted anti-dive automobile seat, including mutually articulated backrest and cushion, the automobile seat further comprises an anti-dive device, the anti-dive device comprises a front supporting rod and a rear supporting rod arranged below the cushion, and a right side plate and a left side plate arranged at the left and right sides of the cushion, the front end of the right side plate is movably connected with the front supporting rod of the cushion through a front connecting rod, and the rear end of the right side plate is movably connected with the rear supporting rod of the cushion through a rear connecting rod; the left side plate and the right side plate of the seat are symmetrically arranged left and right and are connected with the cushion by the same method; the length of the front connecting rod is greater than that of the rear connecting rod, and when the front connecting rod and the rear connecting rod synchronously rotate forwards, the cushion can be changed into a head upwarping state from a horizontal state. The utility model discloses a set up on the seat and prevent dive device, can stably realize preventing the dive function, because the effect of extension spring, when the passenger left the seat, the initial position can be got back to automatically to the cushion, need not manual positioning.

Description

Convenient car seat of preventing diving who adjusts

Technical Field

The utility model relates to an automotive equipment technical field, concretely relates to be applied to small vehicle's car seat.

Background

In recent years, the number of traffic accidents has increased with the increase in the number of automobiles, and although safety devices such as seat belts can reduce the injury of passengers during accidents to a great extent, there are cases where a dangerous moving posture, i.e., the passengers dive, occurs due to a sudden drop in vehicle speed during a frontal collision accident. Occupant dive can cause serious injury to the neck and abdomen of the person. Patent CN 207000236U discloses a supporting structure for preventing seat from submerging in collision, including parts such as cushion skeleton assembly, front and back link, front and back linking arm, set up the extreme position of an inside turn-ups restriction front linking arm through the front linking arm to reduce the submergence volume of support (the submergence volume is reduced to most of prevent that submergence structure is all). However, this structure merely reduces the diving probability (when the collision speed is high, a diving phenomenon may occur), and the reliability of the diving prevention is not high. Therefore, it is necessary to develop a structure capable of stably preventing the sinking.

In addition, the angle of the backrest of the conventional automobile seat is not flexible enough and cannot be freely and accurately adjusted, most of the angle adjusters are meshed with gears, the minimum adjustable angle of the backrest is large, and the condition that the angle cannot be adjusted to a proper angle is likely to occur.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in providing a convenient car seat of preventing dive that adjusts to the not enough of above-mentioned prior art existence, and it includes the high back adjusting device who prevents dive structure and convenient nimble of stability, can effectively avoid the risk that the passenger dives in the collision accident, can realize the accurate regulation of freedom of back simultaneously.

The utility model discloses a solve the technical scheme that technical problem that the aforesaid provided adopted and be:

the anti-dive automobile seat convenient to adjust comprises a backrest and a cushion which are hinged with each other, and further comprises an anti-dive device, wherein the anti-dive device comprises a cushion front supporting rod and a cushion rear supporting rod which are arranged below the cushion, and a seat right side plate and a seat left side plate which are arranged on the left side and the right side of the cushion, the front end of the seat right side plate is movably connected with the cushion front supporting rod through a front connecting rod, and the rear end of the seat right side plate is movably connected with the cushion rear supporting rod through a rear connecting rod; the left seat side plate and the right seat side plate are symmetrically arranged left and right and are connected with the cushion by the same method; the length of the front connecting rod is greater than that of the rear connecting rod, and when the front connecting rod and the rear connecting rod rotate forwards synchronously, the cushion can be changed from a horizontal state to a head upwarping state.

In the scheme, the inner wall of the right side plate of the seat is fixedly provided with a front boss and a rear boss; the lower end of the front connecting rod is hinged with the front boss through a pin shaft, the upper end of the front connecting rod is hinged with the corner connector through a pin shaft, and the corner connector is fixedly connected with the front supporting rod of the cushion; the lower end of the rear connecting rod is hinged with the rear boss through a pin shaft, the upper end of the rear connecting rod is hinged with the corner connector through a pin shaft, and the corner connector is fixedly connected with the rear supporting rod of the cushion.

In the scheme, the front side of the center of the front boss is provided with the front stop block, and the rear side of the center of the rear boss is provided with the rear stop block.

In the above scheme, when the cushion is in a horizontal state, the front connecting rod tilts backwards, and the rear connecting rod is vertical and clings to the rear stop block; when the cushion is in a state that the head part of the cushion is tilted upwards, the front connecting rod is tightly attached to the front stop block, and the rear connecting rod tilts forwards.

In the scheme, two sides of the rear part of the cushion are respectively connected with the right side plate and the left side plate of the seat through tension springs.

In the above scheme, the automobile seat further comprises a backrest adjusting device, wherein the backrest adjusting device comprises an adjuster shell, and a support frame, a worm shaft, a gear shaft and a backrest shaft which are arranged in the adjuster shell; an adjusting button is fixedly mounted on the supporting frame, and a hole for the adjusting button to penetrate through is formed in the side face of the shell of the adjuster; the worm shaft is arranged above the supporting frame, a pinion and a worm are fixedly arranged on the worm shaft, a waist hole is formed in the shell of the regulator, the worm shaft can move up and down in the waist hole, and stop clamping rings are respectively arranged at two ends of the worm shaft for limiting; gear shaft and back axle install in worm axle top, fixed mounting has gear wheel and back angle adjust knob on the gear shaft, gear wheel and pinion meshing, the regulator shell is equipped with the hole that is used for back angle adjust knob to wear out, the epaxial fixed mounting of back has the worm wheel, the worm wheel with the worm meshing.

In the above scheme, the worm shaft is sleeved with a self-lubricating bearing, two ends of the self-lubricating bearing are prevented from sliding by arranging the stop rings, the top of the support frame is provided with a triangular boss, and the outer ring of the self-lubricating bearing is in contact with the inclined plane of the triangular boss.

In the above scheme, the back equipartition spring of support frame, the both ends of spring are connected regulator shell inner wall and support frame respectively.

In the above scheme, the backrest adjusting device further comprises a torsion spring, one end of the torsion spring is fixed on the inner wall of the adjuster shell, and the other end of the torsion spring is fixed on the end face of the worm wheel.

In the scheme, the center distance between the large gear and the small gear is equal to the center distance between the worm gear and the worm, and the helical angle of the worm gear is smaller than the friction angle, so that self-locking is guaranteed.

The beneficial effects of the utility model reside in that:

1. the utility model discloses a set up on the seat and prevent dive device, can stably realize preventing the dive function, because the effect of extension spring, when the passenger left the seat, the initial position can be got back to automatically to the cushion, need not manual positioning.

2. The utility model discloses back adjusting device drive ratio is big, and the worm axle rotates a week, and the worm wheel drives the back axle and rotates the angle that a tooth corresponds, can transfer arbitrary angle with the back, and easy operation, convenient to use.

3. The utility model discloses a whole device of seat simple structure.

Drawings

The invention will be further explained with reference to the drawings and examples, wherein:

FIG. 1 is a schematic view of the overall structure of the vehicle seat of the present invention;

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

FIG. 3 is a detail view of the right side panel of the seat;

FIG. 4 is a schematic view of the initial position (horizontal state) of the seat;

fig. 5 is a schematic view of the initial position of the seat (head-up state);

fig. 6 is a detailed view of the internal structure of the regulator housing.

In the figure: 11. a backrest; 12. a cushion; 20. an anti-dive device; 211. a front support bar of the cushion; 212. a support rod behind the cushion; 221. a seat right side panel; 222. a seat left side panel; 231. a front link; 232. a rear connecting rod; 241. a front boss; 242. a rear boss; 251. a front stop block; 252. a rear stop block; 26. corner connectors; 27. a tension spring; 30. a backrest adjustment device; 31. a regulator housing; 311. a waist hole; 32. a support frame; 33. an adjustment button; 34. a worm shaft; 341. a pinion gear; 342. a worm; 343. a self-lubricating bearing; 344. a locking snap ring; 35. a gear shaft; 351. a bull gear; 352. a backrest angle adjusting knob; 36. a backrest shaft; 361. a worm gear; 362. a torsion spring; 37. a spring.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 to 6, the anti-dive car seat, which is a preferred embodiment of the present invention and is easy to adjust, includes a backrest 11 and a seat cushion 12, which are hinged to each other. The car seat further includes a dive prevention apparatus 20, and the dive prevention apparatus 20 includes a cushion front support bar 211, a cushion rear support bar 212, a seat right side plate 221, and a seat left side plate 222. The front cushion supporting rod 211 and the rear cushion supporting rod 212 are fixed below the cushion 12 through screws, and are used for supporting the cushion 12 and transmitting force, so that uneven force on the left and right sides of the cushion 12 is prevented. The seat right side plate 221 and the seat left side plate 222 are distributed on the left side and the right side of the seat cushion 12, the front end of the seat right side plate 221 is movably connected with the seat cushion front supporting rod 211 through a front connecting rod 231, and the rear end of the seat right side plate 221 is movably connected with the seat cushion rear supporting rod 212 through a rear connecting rod 232; the seat cushion 12, the front link 231, the seat right side plate 221, and the rear link 232 form a four-bar hinge mechanism. The left seat side plate 222 and the right seat side plate 221 are arranged bilaterally symmetrically and are connected to the seat cushion 12 in the same manner. The front link 231 is longer than the rear link 232, and when the front link 231 and the rear link 232 rotate forward in synchronization, the seat cushion 12 can be changed from the horizontal state to the head tilted state.

Preferably, in this embodiment, a hollow front boss 241 and a hollow rear boss 242 are fixedly installed on the inner wall of the right seat side plate 221, the lower end of the front link 231 is hinged to the front boss 241 through a pin, the upper end of the front link 231 is hinged to the corner brace 26 through a pin, and the corner brace 26 is fixed to the front cushion support rod 211 through a screw. The lower end of the rear connecting rod 232 is hinged with the rear boss 242 through a pin shaft, the upper end of the rear connecting rod 232 is hinged with the corner connector 26 through a pin shaft, and the corner connector 26 is fixedly connected with the cushion rear supporting rod 212.

Preferably, in this embodiment, a front stop block 251 is disposed at the front side of the center of the front boss 241, and a rear stop block 252 is disposed at the rear side of the center of the rear boss 242, for respectively limiting the rotation angles of the front link 231 and the rear link 232. When the seat cushion 12 is in the horizontal state, the front link 231 tilts backward, and the rear link 232 stands upright and abuts against the rear stopper 252. When the seat cushion 12 is in the head-up state, the front link 231 abuts against the front stopper 251 and the rear link 232 tilts forward.

Preferably, in the present embodiment, two sides of the rear portion of the seat cushion 12 are respectively connected to the seat right side plate 221 and the seat left side plate 222 through the tension springs 27. Due to the action of the tension spring 27, when the passenger leaves the seat, the cushion can automatically return to the initial position without manual positioning.

When the automobile normally runs, the front link 231 and the rear link 232 do not rotate, and the position of the seat cushion 12 is unchanged, as shown in fig. 4. When accidents such as head-on collision occur, the deceleration of the vehicle speed is large, the seat right side plate 221 and the seat left side plate 222 are fixed on the vehicle body bottom plate, and relative displacement cannot occur, and the seat cushion 12 tends to move forward due to the inertia force, so that the front link 231 and the rear link 232 are driven to rotate, the front end of the seat cushion 12 is upward, the rear end of the seat cushion 12 is downward, as shown in fig. 5, the hip height of the passenger is reduced, the knee height is increased, and the passenger can be effectively prevented from diving.

Further preferably, in the present embodiment, the car seat further includes a backrest adjusting device 30, and the backrest adjusting device 30 includes an adjuster housing 31, and a support frame 32, a worm shaft 34, a gear shaft 35, and a backrest shaft 36 installed inside the adjuster housing. The adjuster housing 31 is fixedly mounted to the seat left side plate 222 by welding, and the front plate and the upper plate are screwed to the housing for easy mounting and dismounting. An adjusting button 33 is fixedly arranged on the supporting frame 32, and a hole for the adjusting button 33 to penetrate out is formed in the side surface of the adjuster shell 31. The worm shaft 34 is mounted above the support frame 32, a pinion 341 and a worm 342 are fixedly mounted on the worm shaft 34, a waist hole 311 is formed in the adjuster housing 31, the worm shaft 34 can move up and down in the waist hole 311, and stop snap rings 344 are mounted at two ends of the worm shaft 34 respectively for limiting. The gear shaft 35 and the backrest shaft 36 are mounted above the worm shaft 34, the gear shaft 35 is fixedly mounted with a large gear 351 and a backrest angle adjusting knob 352, the large gear 351 is meshed with a small gear 341, the adjuster housing 31 is provided with a hole for the backrest angle adjusting knob 352 to penetrate through, the backrest shaft 36 is fixedly mounted with a worm wheel 361, the worm wheel 361 is mounted on the backrest shaft 36 through a key, and the worm wheel 361 is meshed with the worm 342. The transmission ratio of the backrest adjusting device 30 is large, the worm shaft 34 rotates for a circle, the worm wheel 361 drives the backrest shaft 36 to rotate for an angle corresponding to one tooth, the backrest can be adjusted to any angle, and the operation is simple and the use is convenient.

Further optimize, in this embodiment, the worm shaft 34 is sleeved with a self-lubricating bearing 343, two ends of the self-lubricating bearing 343 are prevented from sliding by the stop ring, the top of the support frame 32 is provided with a triangular boss, and an outer ring of the self-lubricating bearing 343 is in contact with an inclined plane of the triangular boss.

Further preferably, in this embodiment, a spring 37 is uniformly distributed on the back surface of the supporting frame 32, and two ends of the spring 37 are respectively connected with the inner wall of the regulator casing 31 and the supporting frame 32.

Preferably, in this embodiment, the backrest adjusting device 30 further includes a torsion spring 362, one end of the torsion spring 362 is fixed on the inner wall of the adjuster housing 31, and the other end is fixed on the end surface of the worm gear 361.

Further optimization, in this embodiment, the center distance between the large gear 351 and the small gear 341 is equal to the center distance between the worm gear 361 and the worm 342, and the helix angle of the worm gear is smaller than the friction angle, so as to ensure self-locking.

Angle adjustment mode of the backrest 11:

when the backrest 11 needs to be adjusted to a smaller angle, the backrest angle adjusting knob 352 may be directly rotated for adjustment. The large gear 351 is driven to rotate by manually rotating the backrest angle adjusting knob 352, the large gear 351 synchronously drives the small gear 341 and the worm 342 to rotate, and then further drives the worm gear 361 and the backrest shaft 36 to rotate, so that the angle of the backrest 11 is adjusted.

When the backrest 11 needs to rotate by a large angle, the adjusting button 33 can be pressed to move the support frame 32 (at this time, the spring 37 is compressed), the worm shaft 34 moves downwards along the inclined plane of the triangular boss under the action of gravity, the big gear and the small gear are meshed with the worm gear, at this time, the backrest 11 can be manually pushed to reach a desired angle, the adjusting button 33 is loosened, the support frame 32 resets under the action of the resilience force of the spring 37, the worm shaft 34 is driven to ascend, the big gear and the small gear are meshed with the worm gear again, and then the backrest angle adjusting knob 352 is rotated to adjust the angle to the most appropriate position. At the end of the ride, the adjustment knob 33 is depressed and the backrest 11 returns to the initial position due to the torsion spring 362.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

While the embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many modifications may be made by one skilled in the art without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. The anti-dive automobile seat convenient to adjust comprises a backrest and a cushion which are hinged with each other, and is characterized by further comprising an anti-dive device, wherein the anti-dive device comprises a cushion front supporting rod and a cushion rear supporting rod which are arranged below the cushion, and a seat right side plate and a seat left side plate which are arranged on the left side and the right side of the cushion, the front end of the seat right side plate is movably connected with the cushion front supporting rod through a front connecting rod, and the rear end of the seat right side plate is movably connected with the cushion rear supporting rod through a rear connecting rod; the left seat side plate and the right seat side plate are symmetrically arranged left and right and are connected with the cushion by the same method; the length of the front connecting rod is greater than that of the rear connecting rod, and when the front connecting rod and the rear connecting rod rotate forwards synchronously, the cushion can be changed from a horizontal state to a head upwarping state.

2. The conveniently adjustable anti-dive automobile seat as claimed in claim 1, wherein a front boss and a rear boss are fixedly installed on an inner wall of a right side plate of the seat; the lower end of the front connecting rod is hinged with the front boss through a pin shaft, the upper end of the front connecting rod is hinged with the corner connector through a pin shaft, and the corner connector is fixedly connected with the front supporting rod of the cushion; the lower end of the rear connecting rod is hinged with the rear boss through a pin shaft, the upper end of the rear connecting rod is hinged with the corner connector through a pin shaft, and the corner connector is fixedly connected with the rear supporting rod of the cushion.

3. The adjustable anti-dive vehicle seat according to claim 2, wherein said front boss is centrally disposed forwardly of a front stop and said rear boss is centrally disposed rearwardly of a rear stop.

4. The easy-to-adjust anti-dive vehicle seat as recited in claim 3, wherein said front link is tilted backward and said rear link is tilted vertically and tightly against said rear stop when said seat cushion is in a horizontal position; when the cushion is in a state that the head part of the cushion is tilted upwards, the front connecting rod is tightly attached to the front stop block, and the rear connecting rod tilts forwards.

5. The adjustable anti-dive vehicle seat as recited in claim 1, wherein said cushion is connected to said right side plate and said left side plate by a tension spring.

6. The easy-to-adjust anti-dive vehicle seat according to claim 1, further comprising a backrest adjustment device, said backrest adjustment device comprising an adjuster housing and a support bracket, a worm shaft, a gear shaft, a backrest shaft mounted therein; an adjusting button is fixedly mounted on the supporting frame, and a hole for the adjusting button to penetrate through is formed in the side face of the shell of the adjuster; the worm shaft is arranged above the supporting frame, a pinion and a worm are fixedly arranged on the worm shaft, a waist hole is formed in the shell of the regulator, the worm shaft can move up and down in the waist hole, and stop clamping rings are respectively arranged at two ends of the worm shaft for limiting; gear shaft and back axle install in worm axle top, fixed mounting has gear wheel and back angle adjust knob on the gear shaft, gear wheel and pinion meshing, the regulator shell is equipped with the hole that is used for back angle adjust knob to wear out, the epaxial fixed mounting of back has the worm wheel, the worm wheel with the worm meshing.

7. The conveniently adjustable anti-dive automobile seat as claimed in claim 6, wherein the worm shaft is sleeved with a self-lubricating bearing, two ends of the self-lubricating bearing are prevented from sliding by a retaining ring, a triangular boss is disposed on the top of the supporting frame, and an outer ring of the self-lubricating bearing contacts with an inclined surface of the triangular boss.

8. The adjustable dive-prevention automobile seat as claimed in claim 6, wherein a spring is uniformly disposed on the back of the supporting frame, and both ends of the spring are respectively connected to the inner wall of the adjuster case and the supporting frame.

9. The easy-to-adjust anti-dive automobile seat according to claim 6, wherein said backrest adjustment device further comprises a torsion spring, one end of said torsion spring is fixed to an inner wall of said adjuster housing, and the other end of said torsion spring is fixed to an end surface of said worm gear.

10. The easy-to-adjust anti-dive car seat according to claim 6, wherein the center distance between the bull gear and the pinion gear is equal to the center distance between the worm gear and the worm, and the helix angle of the worm gear is smaller than the friction angle, so as to ensure self-locking.