A kind of bidirectional cable mechanism that can certainly reply
Technical field
This utility model is related to drawing cable mechanism, particularly to a kind of bidirectional cable mechanism that can certainly reply.
Background technology
At present in the automotive seat of motor vehicles, the drawing cable mechanism major part being usually used in the unblock of each mechanism is unidirectional drag-line
, also there are some bidirectional cable mechanisms in mechanism, existing bidirectional cable mechanism only has two states, that is, in driving source forward or reverse
When, side cable pull, opposite side drag-line unclamps, and both sides drag-line is not from recovery function.
Referring to Fig. 1 to Fig. 4, existing bidirectional cable mechanism includes fixed shell 10, worm screw installs housing 20, internal gear
30th, worm screw 40, worm gear disk 50, planetary gear set 60, position-arresting disk 70, a pair of drag-line wire harness 81,82, outer cover plate 90.
Fixed shell 10 has the cylinder shell 12 with shell bottom 11, is provided centrally with central shaft 13 at shell bottom 11,
Two drag-line punched out 15a, 15b are provided with the shell wall 14 of cylinder shell 12, in the shell wall 14 of cylinder shell 12
Two groups of internal tooth sections 16a, 16b are evenly equipped with side face 15.Worm screw is installed housing 20 and is integrally formed with fixed shell 10 and is located at cylinder
On the shell wall 14 of shape housing 12, worm screw installs the inner chamber of housing 20 and the inner space of cylinder shell 12.
Worm screw 40 axle is located in the inner chamber that worm screw installs housing 20, its one end and driving source 00 drive connection.Worm gear disk 50
There is coaxial worm gear 51 and sun gear 52, offer a central shaft hole 53 at the center of sun gear 52, worm gear disk 50 is arranged on
In the inner chamber of cylinder shell 12, wherein worm gear 51 is engaged with worm screw 40, and the central shaft 13 on shell bottom 11 passes through on worm gear disk 50
Central shaft hole 53, sun gear 52 stretches out to outer cover plate 90 direction.
One ring gear 31 is had on internal gear 30, two groups of external tooth sections 32a, 32b are evenly equipped with the outer peripheral edge of internal gear 30
And it is provided with position-arresting disk radial direction spacer pin 34a, 34b and position-arresting disk circumference on internal gear 30 is towards this one side 33 of outer cover plate 90
Limited block 35.Internal gear 30 be also mounted in the inner chamber of cylinder shell 12 and be shelved on worm gear disk 50 towards outer cover plate 90 this
On the end face 54 of one end, be wherein evenly equipped with internal gear 30 outer peripheral edge two groups of external tooth sections 32a, 32b respectively with cylinder shell 12
The inner peripheral surface 15 of shell wall 14 on the engagement of two groups of internal tooth sections 16a, 16b, thus limiting the rotation of internal gear 30.
The outer peripheral edge of position-arresting disk 70 is provided with an arc-shaped limit block 71, position-arresting disk 70 be provided centrally with a centre bore 72,
It is evenly equipped with three planet wheel spindles 74a, 74b, 74c on position-arresting disk 70 is towards the side 73 of worm gear disk 50, in position-arresting disk 70 face
One drag-line winder 76 is provided with the side 75 of outer cover plate 90, two Cable heads is provided with drag-line winder 76 solid
Determine groove 76a, 76b and the outer peripheral face 76c of drag-line winder 76 is provided with the embedded annular groove 76d of drag-line.
Planetary gear set 60 includes three planetary gears 61a, 61b, 61c, and axle is located at limit respectively for three planetary gears 61a, 61b, 61c
On three planet wheel spindles 74a, 74b, 74c of position disk 70.The position-arresting disk 70 being equipped with planetary gear set 60 is also mounted at cylindrical shell
In the inner chamber of body 12, central shaft 13 wherein on shell bottom 11 passes through the centre bore 72 of position-arresting disk 70, three planetary gear 61a, 61b,
61c mono- aspect is engaged with sun gear 52, on the other hand engages with the ring gear 31 in internal gear 30.The arc of position-arresting disk 70 outer peripheral edge
Shape limited block 71 is in the same plane with the position-arresting disk circumference limited block 35 on internal gear 30, the arc of position-arresting disk 70 outer peripheral edge
The outer peripheral edge of limited block 71 is contacted with position-arresting disk radial direction spacer pin 34a, 34b on internal gear 30.
Cable head 81a, 82a of a pair of drag-line wire harness 81,82 is separately fixed at two Cable heads on drag-line winder 76
Fixing groove 76a, 76b, a pair of drag-line wire harness 81,82 bypasses along the embedded annular groove 76d of the drag-line on drag-line winder 76 outer peripheral edge and draws
Passed by two drag-line punched out 15a, 15b on the shell wall 14 of cylinder shell 12 in rope winder 76.
Outer cover plate 90 is covered on cylinder shell 12 and is fixed by securing member.
Above-mentioned bidirectional cable mechanism only has two working conditions, and that is, in driving source forward or reverse, side drag-line draws
Tightly, opposite side drag-line unclamps, and both sides drag-line is not from recovery function.
Utility model content
Technical problem to be solved in the utility model is for existing unidirectional drawing cable mechanism and institute of bidirectional cable mechanism
Exist many technical problems and provide a kind of can from reply bidirectional cable mechanism.This can exist from the bidirectional cable mechanism replied
Side cable pull when driving source rotates forward, the opposite side cable pull when driving source inverts, when driving source is unpowered, two laybacks
Rope is in poised state.
Technical problem to be solved in the utility model can be achieved through the following technical solutions:
A kind of bidirectional cable mechanism that can certainly reply, installs housing, internal gear, worm screw, worm gear including fixed shell, worm screw
Disk, planetary gear set, position-arresting disk, a pair of drag-line wire harness, outer cover plate;The inner chamber of described fixed shell installs housing with described worm screw
Inner chamber connects, and described outer cover plate should be in described fixed shell, and described worm shaft sets in the inner chamber that described worm screw installs housing
And have a driving source to drive;Described internal gear, worm gear disk, planetary gear set, position-arresting disk are installed in the inner chamber of described fixed shell
In, described worm screw is engaged with the worm gear in described worm gear disk, and described planetary gear set is arranged on described position-arresting disk, described planetary gear
On the one hand group is engaged with the sun gear on described worm gear disk, on the other hand engages with the ring gear in described internal gear;Described limit
Position disk is provided with drag-line winder, and the Cable head in a pair of drag-line wire harness is fixed on described drag-line winder and draws described in bypassing
Passed by the drag-line punched out in described fixed shell after rope winder;It is characterized in that, also include one solid with described position-arresting disk
The fixed torsion spring disk connecting and the torsion spring on described torsion spring disk, are provided with torsion spring drive block on described torsion spring disk, described
Torsion spring drive block is stuck between two terminations of described torsion spring;Set on described outer cover plate is towards this one side of described fixed shell
It is equipped with a limited block, described limited block inserts between two terminations of described torsion spring.
In a preferred embodiment of the present utility model, described torsion spring disk is provided with torsion spring winch spool, described torsion spring
On described torsion spring winch spool.
Due to employing technical scheme as above, the bidirectional cable mechanism that can certainly reply of the present utility model is in driving source just
Side cable pull can be made when turning to unlock, the drag-line of opposite side loosens locking, and the opposite side drag-line when driving source inverts
Strain and unlock, side drag-line loosens and locking, and especially when driving source is unpowered, both sides drag-line is in poised state and does not all enter
Row unblock.
Brief description
Fig. 1 is the appearance schematic diagram of existing bidirectional cable mechanism.
Fig. 2 is the structural representation of existing bidirectional cable mechanism.
Fig. 3 is exploded perspective view in terms of a direction for the existing bidirectional cable mechanism.
Fig. 4 is exploded perspective view in terms of another direction for the existing bidirectional cable mechanism.
Fig. 5 is exploded perspective view that can be from the bidirectional cable mechanism replied in terms of a direction of the present utility model.
Fig. 6 is exploded perspective view that can be from the bidirectional cable mechanism replied in terms of another direction of the present utility model.
Fig. 7 is the structural representation of the bidirectional cable mechanism that can certainly reply of the present utility model.
Fig. 8 be of the present utility model can from reply bidirectional cable mechanism in position-arresting disk and a pair of drag-line connection signal
Figure.
Fig. 9 is position-arresting disk and a pair of drag-line, torsion spring disk in the bidirectional cable mechanism that can certainly reply of the present utility model
Connection diagram.
Figure 10 be of the present utility model can from the position-arresting disk in the bidirectional cable mechanism replied and a pair of drag-line, torsion spring disk,
The connection diagram of torsion spring.
Figure 11 is the bidirectional cable mechanism appearance schematic diagram that can certainly reply of the present utility model.
Figure 12 is the bidirectional cable mechanism sectional view that can certainly reply of the present utility model.
Figure 13 is view when torsion spring in the bidirectional cable mechanism of self recovery of the present utility model is not installed.
Figure 14 is that torsion spring in the bidirectional cable mechanism of self recovery of the present utility model is in the state of equilbrium position and shows
It is intended to.
Figure 15 is the shape that torsion spring in the bidirectional cable mechanism of self recovery of the present utility model is in two extreme positions
State schematic diagram.
Figure 16 is that in the bidirectional cable mechanism that can certainly reply of the present utility model, driving source rotate forward to the structure of extreme position
Schematic diagram.
Figure 17 is the structure that in the bidirectional cable mechanism that can certainly reply of the present utility model, driving source is inverted to extreme position
Schematic diagram.
When Figure 18 is that in the bidirectional cable mechanism that can certainly reply of the present utility model, driving source quits work, at the drag-line of both sides
Structural representation in poised state.
Specific embodiment
Referring to Fig. 5 to Figure 15, what in figure was given can be from the bidirectional cable mechanism replied, including fixed shell 100, worm screw peace
Dress housing 200, internal gear 300, worm screw 400, worm gear disk 500, planetary gear set 600, position-arresting disk 710, torsion spring disk 720, torsion spring
730th, a pair of drag-line wire harness 810,820, outer cover plate 900.
Fixed shell 100 has the cylinder shell 120 with shell bottom 110, is provided centrally with central shaft at shell bottom 110
130, two drag-line punched out 141,142 are provided with the shell wall 140 of cylinder shell 120, in the shell of cylinder shell 120
Two groups of internal tooth sections 151,152 are evenly equipped with the inner peripheral surface 150 of wall 140.
Worm screw is installed housing 200 and is integrally formed with fixed shell 100 and is located on the shell wall 140 of cylinder shell 120, snail
Bar installs the inner chamber of housing 200 and the inner space of cylinder shell 120.
Worm screw 400 axle is located in the inner chamber that worm screw installs housing 200, its one end and driving source drive connection.
Worm gear disk 500 has coaxial worm gear 510 and sun gear 520, offers a central shaft at the center of sun gear 520
Hole 530, worm gear disk 500 is arranged in the inner chamber of cylinder shell 120, and wherein worm gear 510 is engaged with worm screw 400, on shell bottom 110
Central shaft 130 pass through central shaft hole 530 on worm gear disk 500, sun gear 520 stretches out to outer cover plate 900 direction.
One ring gear 310 is had on internal gear 300, the outer peripheral edge of internal gear 300 is evenly equipped with two groups of external tooth sections 311,
312 and be provided with position-arresting disk radial direction spacer pin 321,322 and spacing on internal gear 300 is towards this one side 320 of outer cover plate 900
Disk circumference limited block 330.Internal gear 300 is also mounted in the inner chamber of cylinder shell 120 and is shelved on worm gear disk 500 and faces out
On the end face 540 of this one end of cover plate 900, be wherein evenly equipped with internal gear 300 outer peripheral edge two groups of external tooth sections 311,312 respectively with
Two groups of internal tooth section 151,152 engagements on the inner peripheral surface 150 of the shell wall 140 of cylinder shell 120, thus limit internal gear 300
Rotate.
The outer peripheral edge of position-arresting disk 710 is provided with an arc-shaped limit block 711, position-arresting disk 710 be provided centrally with a centre bore
712, it is evenly equipped with three planet wheel spindles 714a, 714b, 714c on position-arresting disk 710 is towards the side 713 of worm gear disk 500,
Position-arresting disk 710 is provided with a drag-line winder 716 towards in the side 715 of outer cover plate 900, sets on drag-line winder 716
It is equipped with two Cable head fixing grooves 716a, 716b and the outer peripheral face 716c of drag-line winder 716 is provided with the embedded annular groove of drag-line
716d.
Planetary gear set 600 includes three planetary gears 610,620,630, and axle is located at respectively for three planetary gears 610,620,630
On three planet wheel spindles 714a, 714b, 714c of position-arresting disk 710.
It is provided centrally with centre bore 724 in torsion spring disk 720, torsion spring disk 720 is towards in the side 721 of outer cover plate 900
It is provided with a torsion spring drive block 722 and a torsion spring winch spool 723, it is solid with position-arresting disk 710 that torsion spring disk 720 passes through three screws 724
Fixed connection, drag-line winder 716 is located between position-arresting disk 710 and torsion spring disk 720.Torsion spring 730 is wound on torsion spring winch spool 723
On, torsion spring drive block 722 is stuck between two terminations 731,732 of torsion spring 730.
It is equipped with planetary gear set 600, torsion spring disk 720, the position-arresting disk 710 of torsion spring 730 are also mounted at cylinder shell 120
In inner chamber, the central shaft 130 wherein on shell bottom 110 passes through the centre bore 712 of position-arresting disk 710 and the centre bore of torsion spring disk 720
724, three planetary gear 610,620,630 1 aspects are engaged with sun gear 520, on the other hand with internal gear 300 in ring gear
310 engagements.The arc-shaped limit block 711 of position-arresting disk 710 outer peripheral edge is located at the position-arresting disk circumference limited block 330 on internal gear 300
On same plane, the outer peripheral edge of arc-shaped limit block 711 of position-arresting disk 710 outer peripheral edge is radially limited with the position-arresting disk on internal gear 300
Position pin 321,322 contact.
The Cable head 811,821 of a pair of drag-line wire harness 810,820 is separately fixed at two drag-lines on drag-line winder 716
Head fixing groove 716a, 716b, a pair of drag-line wire harness 810,820 is along the drag-line embedded rings on drag-line winder 716 outer peripheral edge 716c
Groove 716d bypasses in drag-line winder 716 and is worn by the two drag-line punched out 141,142 on the shell wall 140 of cylinder shell 120
Go out.
Outer cover plate 900 is covered on cylinder shell 120 and is fixed by securing member, in outer cover plate 900 towards fixed shell
It is provided with a limited block 911, limited block 911 inserts between two terminations 731,732 of torsion spring 730 in 100 this one side 910.
Operation principle of the present utility model is as follows:
Referring to Figure 16, when driving source rotates forward to extreme position, worm screw 400 drives worm gear disk 500 to rotate counterclockwise extremely
Extreme position, worm gear disk 500 drives position-arresting disk 710 to rotate counterclockwise to extreme position by planetary gear set 600, now position-arresting disk
One side 331 of position-arresting disk circumference limited block 330 in one side 711a of the arc-shaped limit block 711 on 710 and internal gear disc 300 connects
Touch, position-arresting disk 710 no longer rotates counterclockwise.Position-arresting disk 710 is synchronous simultaneously drives torsion spring disk 720 to rotate counterclockwise to extremely spacing
Put, the torsion spring drive block 722 on torsion spring disk 720 rotates counterclockwise to extreme position, and torsion spring drive block 722 drives torsion spring 730
Termination 732 rotates counterclockwise to extreme position, and the limited block 911 that another termination 731 of torsion spring 730 is subject on outer cover plate 900 limits
System is motionless, and therefore torsion spring 730 tightens up accumulation of energy counterclockwise, and now drag-line 820 is strained by position-arresting disk 710 by drag-line winder 716
And drag-line 810 is relaxed, drag-line 820 drives a unlocking mechanism unblock, and drag-line 810 will not drive another unlocking mechanism. simultaneously
And unlock.
Referring to Figure 17, when driving source is inverted to extreme position, worm screw 400 drives worm gear disk 500 to rotate clockwise extremely
Extreme position, worm gear disk 500 drives position-arresting disk 710 to be clockwise to extreme position by planetary gear set 600, now position-arresting disk
One side 332 of position-arresting disk circumference limited block 330 in one side 711b of the arc-shaped limit block 711 on 710 and internal gear disc 300 connects
Touch, position-arresting disk 710 no longer rotates clockwise.Position-arresting disk 710 is synchronous simultaneously drives torsion spring disk 720 to be clockwise to limit position
Put, the torsion spring drive block 722 on torsion spring disk 720 is clockwise to extreme position, torsion spring drive block 722 drives torsion spring 730
Termination 731 is clockwise to extreme position, and the limited block 911 that another termination 732 of torsion spring 730 is subject on outer cover plate 900 limits
System is motionless, and therefore torsion spring 730 tightens up accumulation of energy clockwise, and now drag-line 810 is strained by position-arresting disk 710 by drag-line winder 716
And drag-line 820 is relaxed, drag-line 810 drives a unlocking mechanism unblock, and drag-line 820 will not drive another unlocking mechanism. simultaneously
And unlock.
Referring to Figure 18, when driving source is unpowered, torsion spring 730 discharges, and the termination 732 of torsion spring 730 or termination 731 are passed through to turn round
Spring drive block 722 drives torsion spring disk 720 to return back to equilbrium position counterclockwise or clockwise, and torsion spring disk 720 is synchronous to drive position-arresting disk
710 and position-arresting disk 710 on drag-line winder 716 return back to equilbrium position counterclockwise or clockwise, drag-line winder 716 makes
Drag-line 810,820 is in equilbrium position, does not strain, and such drag-line 810,820 will not drive two unlocking mechanism unblocks.