CN212447202U - Electric sliding rail assembly of seat - Google Patents

Abstract

A seat electric slide rail assembly comprises slide grooves arranged in parallel, slide rails arranged on the slide grooves, a driving device arranged on the slide rails and used for driving the slide rails to move along the length direction of the slide grooves, and a locking device arranged on the slide rails and in an unlocking state when the slide rails move and in a locking state when the slide rails stop moving so as to lock the slide rails on the slide grooves; the utility model can realize the electric two-way, namely moving and locking functions of the seat slide rail, the locking force meets the requirement of the oversized locking force, the stroke can meet the maximum requirement (the stroke is more than 800mm) of the existing commercial vehicle, and the driving mechanism in the structure has the capability of rapidly moving the seat; in addition can hide the automobile floor with spout and power supply wire harness in this slide rail assembly, the dust cover in this structure can realize sheltering from the spout simultaneously, has greatly improved the seat security performance and the senior sense and the comfort level of commercial car.

Description

Electric sliding rail assembly of seat

Technical Field

The utility model relates to a slide rail technical field, concretely relates to electronic slide rail assembly of seat.

Background

With the increasing production and sales of commercial vehicles and motor homes and the demand of vehicle owners for more comfortable functions of middle and rear row seats on vehicle bodies, seat products with ultra-large travel (more than 500 mm) are mounted on the middle and rear row positions of the commercial vehicles and the motor homes in large quantities. At present, no seat electric slide rail product with the stroke exceeding 500mm and capable of being hidden inside the floor of an automobile exists, and the reason for this is that a single stepless locking structure is required for a large-stroke seat electric slide rail product.

The existing slide rail locking structure on the market mainly has two kinds:

1. screw drive (self-locking): this configuration is typically used on power seat track products with less than 500mm travel. The large-stroke seat slide rail with double-layer lead screw transmission in the market has the advantages that the stroke is 680mm, the large-stroke seat slide rail is arranged in an overlapped mode, the stroke of a first layer of lead screws is 340mm, the stroke of a second layer of lead screws is 340mm, the stroke of the second layer of lead screws can reach 680mm, the structure is large in size and complex in structure, the space size above the floor needs to be occupied, the lead screws are too long, the rigidity is small, the stress is prone to deformation, the stroke is small, the running speed of the lead screws is slow, and the like.

2. Manual unlocking and manual sliding rail moving: the mode has large stroke, when in locking, the lock pin and the lock hole have certain size, a certain distance is arranged between the lock holes, when the lock pin is aligned with the lock hole, people can be inserted smoothly for locking, if the position aligned with the lock pin is the interval in the middle of the lock hole, the lock can not be locked, the lock mode is that the lock pin passively looks for the lock hole, stepless locking can not be realized, and therefore, the structure can not be applied to an electric slide rail.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a seat electric slide rail assembly.

The utility model aims at adopting the following technical scheme to realize. The basis the utility model provides an electronic slide rail assembly of seat, including parallel arrangement's spout, install the slide rail on the spout, install the drive arrangement who is used for driving the slide rail to remove along the length direction of spout on the slide rail, thereby install on the slide rail be in the unlocking state when the slide rail removes, be in the locking state when the slide rail stops to remove and lock the locking device of slide rail locking on the spout.

Preferably, the driving device comprises a first cross beam with an end part installed on the sliding rail, and a first power source installed on the first cross beam and an output shaft of the first power source connected with one end of the transmission shaft, a gear is installed at the other end of the transmission shaft, a rack matched with the gear is arranged on the sliding groove, and the gear is meshed with the rack.

Preferably, the locking device comprises a second beam, a second power source, a lock, a swing rod, a transmission part and a locking part, wherein the end part of the second beam is arranged on the sliding rail; the sliding rail is provided with a first through hole for the bolt to extend out, and the sliding groove is provided with a plurality of second through holes for the bolt to extend out along the length direction.

Preferably, a first elastic element is arranged between the swing rod and the slide rail, wherein one end of the first elastic element is arranged on the slide rail, and the other end of the first elastic element is arranged on the swing rod and is in a pressed state when the locking device is in a locked state.

Preferably, the two sides of the sliding rail are further provided with dust covers which are located on the side of the sliding rail in the moving direction and can be rolled up so as not to obstruct the movement of the sliding rail when the sliding rail moves, and are located on the side of the sliding rail in the opposite moving direction and can be spread out and covered on the sliding groove so as to prevent dust or sundries from falling into the sliding groove, each dust cover comprises a retractor and a winding belt installed on the retractor, and one of the retractor and the winding belt is installed on the sliding rail.

Preferably, two coiler symmetries set up the both ends at the slide rail, and the one end of winding is installed on the coiler, the other end is installed at the tip with the spout of this coiler homonymy.

Preferably, the retractor comprises a fixed frame, a rotating shaft which is rotatably arranged on the fixed frame and is used for fixing the end part of the winding belt and winding the winding belt when rotating; the one end of pivot is installed and is produced elastic deformation when the winding on the mount is stretched, is in the elastic component of kinetic energy that can pack up the winding of spreading out again with elastic potential energy conversion when the winding is in relaxed state, and the end of a thread drawing mechanism is installed to the other end of pivot, and the pivot tip is equipped with the contact with contact electric connection, and the end of a thread drawing mechanism includes the insulating seat of suit at the pivot tip, sets up and is equipped with a plurality of electrode disc on the insulating seat, electrode disc and contact electric connection.

Preferably, the bottom of the coiler is also provided with a dust removal device which can guide the coiled tape when the coiled tape is coiled so as to facilitate the coiled tape to be wound on the rotating shaft and simultaneously remove dust or sundries on the coiled tape, has certain pressing force on the coiled tape when the coiled tape is spread out and smoothes the coiled tape so as to enable the coiled tape to be better attached to the top surface of the sliding groove.

Preferably, the wire harness hiding device comprises a pulley block provided with a second reversing piece, a wire harness of which one end is fixed on the sliding rail and penetrates through a through hole on the sliding rail to be electrically connected with external electric equipment and the other end bypasses the second reversing piece to be electrically connected with an external power supply, and a resetting device of which the end part is arranged on the pulley block and simultaneously enables the wire harness to be tensioned; and a plurality of third reversing pieces used for guiding the wiring harness are arranged between the sliding rail and the second reversing pieces.

Preferably, the resetting device comprises a first reversing piece arranged in the pulley block, a pull wire with one end fixed on the slide rail and the other end wound around the first reversing piece and connected with the fixed frame, and a plurality of third reversing pieces used for positioning the pull wire and playing a role in guiding are arranged between the slide rail and the first reversing piece.

The utility model provides a pair of seat electric slide rail assembly has following advantage:

1. the utility model can realize the electric two-way, namely moving and locking functions of the seat slide rail, the locking force meets the requirement of the oversized locking force, the stroke can meet the maximum requirement (the stroke is more than 800mm) of the existing commercial vehicle, and the driving mechanism in the structure has the capability of rapidly moving the seat; in addition can hide the automobile floor with spout and power supply wire harness in this slide rail assembly, the dust cover in this structure can realize sheltering from the spout simultaneously, has greatly improved the seat security performance and the senior sense and the comfort level of commercial car.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention can be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following preferred embodiments are mentioned below, and the detailed description is given below with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic view of a seat power slide assembly (without a wire harness hiding device) according to an embodiment.

Fig. 2 is an exploded view of a seat power slide assembly according to an embodiment.

Fig. 3 is a schematic structural diagram of the driving device in this embodiment.

Fig. 4 is an exploded view of the driving device of the present embodiment.

Fig. 5 is a schematic structural view of the locking device in this embodiment.

Fig. 6 is an exploded view of the locking device in this embodiment.

FIG. 7 is a schematic view of the locking bar and lock assembly of the present embodiment.

Fig. 8 is a schematic view illustrating the installation of the dust cover in this embodiment.

Fig. 9 is a schematic structural view of the retractor (without the housing and the brush) in the present embodiment.

Fig. 10 is a schematic view showing the mounting of the head drawing mechanism in this embodiment.

Fig. 11 is a schematic view of a wire harness hiding device in the present embodiment.

Fig. 12 is an exploded view of the wire harness hiding device in the present embodiment.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined purpose, the following detailed description of the embodiments, structures, features and effects of the seat power slide rail assembly according to the present invention will be made with reference to the accompanying drawings and preferred examples.

In the description of the present invention, it should be noted that "back" and "front" are defined according to the sequence of workpiece transportation, and workpieces are transported from "front end" to "back end"; the terms "upper", "lower", "left", "right", "rear", "front", and the like indicate orientations or positional relationships based on the drawings, and are only for convenience of description and simplified description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Referring to fig. 1 and 2, an electric seat slide rail assembly includes two parallel slide grooves 1, each slide groove 1 is slidably mounted with a slide rail 2, the slide groove 1 is embedded in a floor of an automobile while a top surface of the slide groove 1 is flush with a surface of the floor of the automobile, the slide rail 2 is mounted with a driving device 3 for driving the slide rail to move along a length direction of the slide groove, the slide rail 2 is further mounted with a locking device 4 which is in an unlocking state when the slide rail moves and is in a locking state when the slide rail stops moving so as to lock the slide rail on the slide groove, the driving device 3 is connected with an automobile seat through a connecting platform 5, and when the driving device 3 drives the slide rail to move along the slide groove direction, the automobile seat is driven by the slide rail to synchronously move; dust covers 6 are further mounted on two sides of the sliding rail, when the sliding rail moves, the dust covers 6 located on the moving direction side of the sliding rail are rolled up so as not to block the movement of the sliding rail, and meanwhile, the dust covers 6 located on the moving opposite direction side of the sliding rail are spread out and covered on the sliding chute 1 so as to prevent dust or sundries from falling into the sliding chute; the bottom of this electronic slide rail assembly of seat still is provided with the pencil and hides the device, and when the slide rail removed, the pencil did not take up space, increased the power consumption security.

Referring to fig. 3 and 4, the driving device 3 includes a first beam 301 and a first power source 302 installed on the first beam 301, an end of the first beam 301 is installed on the slide rail 2, in this embodiment, the first power source 302 is a dual output shaft gear motor, two output shafts of the first power source 302 are respectively connected with one end of a transmission shaft 304 through a coupling 303, a gear 305 is installed at the other end of the transmission shaft 304, the transmission shaft 304 drives the gear 305 to rotate synchronously when rotating, in this embodiment, the transmission shaft 304 is connected with the gear 305 through a key connection, of course, in other embodiments of the present invention, the transmission shaft can also be connected through welding or other methods, a rack 101 matched with the gear 305 is installed on the chute 1, and the gear 305 is engaged with the rack 101. When the first motor 302 is turned on, the transmission shaft 304 drives the gear 305 to rotate through the transmission shaft 304, and the gear 305 moves along the length direction of the rack 101 to drive the driving device 3 to move along the length direction of the chute.

Of course, in other embodiments of the present invention, the first power source 302 may also be a speed reduction motor with only one output shaft. At this time, only one first power source 302 is installed on the first beam 301 of the driving device 3, the output shaft of the first power source 302 is connected with one end of the transmission shaft 304 through the coupler 303, the gear 305 is installed at the other end of the transmission shaft 304, the gear 305 is meshed with the rack 101, and when the first power source 302 is opened, the gear located on one side of the first beam 301 rotates, so that the driving device is driven to move along the length direction of the sliding chute; certainly, the first beam 301 may also be provided with two first power sources, gears 305 are respectively installed on two sides of the driving device 3, an output shaft of each first motor 302 is connected to the gear 305 on the same side of the output shaft of the first power source sequentially through the coupler 303 and the transmission shaft 304, the output shafts of the two first power sources 302 rotate synchronously, and at the same time, the two first power sources and the two gears 305 rotate synchronously, so as to drive the driving device 3 to move along the length direction of the chute.

Referring to fig. 5 to 7, the locking device 4 includes a second beam 401 and a second motor 402 mounted on the second beam 401, an end of the second beam 402 is mounted on the slide rail 2, an output shaft of the second power source 402 is parallel to the slide rail 2 and is provided with a rotating wheel 403, an end of the second beam 401 is provided with a lock 404, the lock is mounted on the slide rail at the end of the second beam, in this embodiment, the number of the locks is 2, and of course, in other embodiments of the present invention, only one lock may be mounted; referring to fig. 7, a swing rod 405 is installed on the lock 404, and the swing rod 405 can drive the bolt of the lock 404 to extend or retract when swinging, the lock has been reported as a patent and has an authorization publication number CN208376583U, which is not described herein again; the slide rail 2 is provided with a first through hole 201 for extending a lock tongue, the inner side of the sliding chute 1 is provided with a plurality of positioning grooves for embedding the lock tongue in order to lock the slide rail and the sliding chute, the rotating wheel 403 is symmetrically provided with two first mounting holes 406, the bottom of the oscillating bar 405 is mounted on the lock 404, the top of the oscillating bar is hinged to one end of the transmission member 407, the other end of the transmission member 407 is mounted on the first mounting hole 406, in this embodiment, the transmission member 407 adopts a pull cable, the second beam is further provided with a guide wheel 408 for guiding the transmission member 407, a first elastic member 409 is further mounted between the oscillating bar 405 and the slide rail 2, one end of the first elastic member 409 is mounted on the slide rail 2, and the other end of the first elastic member 409 is mounted on. The second power source 402 is started, the second power source rotates positively to provide a pulling force to the transmission piece 407 towards the inner side through the rotating wheel 403, the transmission piece 407 pulls the swing rod 405 to rotate towards the inner side, the lock tongue extends out, the lock tongue passes through the first through hole 201 and is embedded into the positioning groove, so that the slide rail 2 is locked on the slide groove 1, the locking device 4 is in a locking state, at the moment, the swing rod 405 provides a pressure to the first elastic piece 409, and the first elastic piece 409 is pressed; when unlocking, the second power source 402 rotates reversely, the transmission member 407 is in a relaxed state, the swing rod 405 resets under the elastic action of the first elastic member 409, the lock tongue retracts, the locking device 4 is in an unlocked state, and the slide rail 2 can slide freely on the slide groove 1. In this embodiment, the number of the second power sources is 1, and of course, in other embodiments of the present invention, the two second power sources may be used as needed, but the rotation of the two second power sources needs to be performed synchronously; certainly be in the utility model discloses an in other embodiments, cylinder or other drive arrangement can also be chooseed for use to the second power supply, when using the cylinder, can make the output of cylinder directly or indirectly be connected with the tip of pendulum rod to drive the pendulum rod swing.

Certainly, in other embodiments of the present invention, the transmission member 407 may be replaced by a pull rod, and the first elastic member may be disposed as needed, or the first elastic member may not be disposed, when the first elastic member is not disposed, the second motor rotates forward to drive the swing rod to swing, and when the second motor rotates backward, the swing rod is pushed by the pull rod, so that the swing rod is reset; in this embodiment, both ends of the second beam are provided with a lock, and of course, in other embodiments of the present invention, a lock may be provided at one end of the second beam; the utility model discloses a slide rail locking device can realize the big stroke motion and can realize independent automatic stepless locking in the motion process.

In this embodiment, the first elastic member 409 is a torsion spring, but other elastic members may be used instead in other embodiments of the present invention.

Referring to fig. 1, 2, 8, 9 and 10, dust covers 6 are mounted on both sides of each sliding rail 2, each dust cover 6 includes two retractors 61 and a web 62, the two retractors are symmetrically disposed on both ends of the sliding rail 2, one end of the web 62, which is on the same side as the retractors and used in cooperation with the retractors, is fixed on the retractor 61, the other end is fixed on the end of the sliding chute 1 on the same side as the mounting position of the retractor 61, an insulating layer is disposed in the web 62, a contact element 64 is mounted in the insulating layer, one end of the contact element extends out from the retractor 61, the other end of the contact element extends out from the end of the sliding chute 1 on the same side as the mounting position of the retractor 61, one end of the contact element 64 extending out from the end of the sliding chute 1; of course, in other embodiments of the present invention, one end of the contact element 64 extending from the end of the chute 1 can be used as a charging line or for supplying power to the seat platform, and the other end of the contact element 64 is electrically connected to the vehicle power supply; the contact 64 may also be used to communicate signals with a center console or other digital product of the automobile. The insulating layer adopts two-layer insulating tape to forming to gluing in this embodiment, certainly is in the utility model discloses an in other embodiments, also can adopt insulating material to make the winding, with contact direct mount inside the winding.

Referring to fig. 9, the retractor 61 includes a fixing bracket 611 for connecting with an end of the sliding rail 2, a rotating shaft 612 rotatably mounted on the fixing bracket 611 and used for winding the tape, the rotating shaft 612 is provided with a fixing groove 613 for fixing an end of the tape, an end of the tape 62 is inserted into the fixing groove 613 and fixed in the rotating shaft 612, and the contact 64 mounted inside the tape 62 is also inserted into the rotating shaft 612 and extends out from the end of the rotating shaft 612 along with the insertion of the end of the tape 62;

when the slide rail 2 moves along the length direction of the slide groove 1, the rotating shaft 612 of the retractor 61 positioned on the side of the moving direction of the slide rail 2 rotates to wind the winding belt 62 positioned on the side of the moving direction of the slide rail 2, so that the slide groove 1 below is exposed, and the slide rail can move conveniently; meanwhile, the rotating shaft 612 of the retractor 61 on the opposite side of the moving direction of the slide rail 2 rotates to spread the tape 62 on the opposite side of the moving direction of the slide rail 2, and the tape 62 is spread on the slide groove 1 on the opposite side of the moving direction of the slide rail 2, so that dust or sundries are prevented from falling into the slide groove to influence the sliding of the slide rail 2.

One end of the rotating shaft 612 extends from the side wall of the fixing frame 611 and is mounted with a second elastic element 615, the second elastic element 615 generates elastic deformation when the tape wound on the fixing frame 611 is stretched, and converts the elastic potential energy into kinetic energy capable of retracting the unwound tape when the tape is in a relaxed state, and the second elastic element 615 can be a volute spiral spring or other elastic elements with the function. Of course, the end of the rotating shaft 612 may be replaced by a handle or a structure that drives the rotating shaft to rotate by other external force to wind up the tape as long as the function of winding up the tape can be achieved without providing an elastic member.

Referring to fig. 4, the thread end leading-out mechanism 63 includes an insulating base 631 sleeved at an end of the rotating shaft 612, the insulating base 631 is mounted on the fixing frame 611 and does not affect rotation of the rotating shaft 612, a plurality of electrode disks are disposed on the insulating base 631, in this embodiment, a first electrode disk 632 and a second electrode disk 633 which are concentric but have different radii are disposed on the insulating base 631, and the first electrode disk 632 and the second electrode disk 633 are both annular, although in other embodiments of the present invention, a plurality of electrode disks may be disposed according to functions of the contact member 64 for signal transmission, which is the prior art and is not described herein again; the end of the rotating shaft 612 is further provided with a first contact 641 and a second contact 642 for electrically connecting two electrodes of the contact 64, respectively, the first contact 641 and the second electrode disc 633 are concentric and have the same radius, the second contact 642 and the first electrode disc 632 are concentric and have the same radius, when the rotating shaft 612 rotates, the first contact 641 always contacts and is electrically connected with the second electrode disc 633, the second contact 642 always contacts and is electrically connected with the first electrode disc 632, and the contact 64 is electrically connected with an external charger or other electric equipment through the electrode disc.

The bottom of this coiler 61 still is equipped with dust collector 614, and this dust collector 614 plays the guide effect to the winding of being convenient for when the winding is packed up in the winding and is changeed epaxial, and this dust collector 614 still can be when the winding is packed up with the dust or the debris that are located the winding and clear away, when the winding is spread out to the winding have certain packing force and smooth the winding thereby make the winding can be better attached to on the top surface of spout prevent dust or debris entering coiler 61 in to the life of extension coiler. This dust collector 614 can select for use the brush, also can select for use the shovel piece of similar "duckbilled" shape, also can use the shovel piece and the brush cooperation of "duckbilled" shape, also can replace with other devices that can reach this function.

Of course in other embodiments of the present invention, a housing may be disposed outside the retractor 61 for aesthetic purposes, and the housing may further block dust or foreign matter from falling into the retractor.

Of course in other embodiments of the invention, for example:

1) two coiler symmetries set up the both ends at spout 1, and the one end of winding 62 is fixed on coiler 61, and the other end is fixed at the tip with the slide rail 2 of this coiler 61 mounted position homonymy, is equipped with the insulating layer in this winding 62, installs contact 64 in the insulating layer, and the one end of contact stretches out from coiler 61 in, the other end stretches out from the tip with the slide rail 2 of this coiler 61 mounted position homonymy.

2) Any one of the two retractors is installed at one end of the sliding rail 2, one end of a winding belt which is the same as the installation position of the retractor and is used in a matched mode is fixed on the retractor 61, the other end of the winding belt is installed at the end portion of the sliding chute 1 which is the same as the installation position of the retractor 61, an insulating layer is arranged in the winding belt 62, a contact element 64 is installed in the insulating layer, one end of the contact element extends out of the retractor 61, and the other end of the contact element extends out of the end portion of the sliding chute 1; the other retractor is installed at the end part of the sliding groove 1 at the same side with the other end of the sliding rail 2, one end of a winding 62 which is at the same side with the retractor and is used in a matched mode is fixed on the retractor 61, the other end of the winding 62 is fixed at the end part of the sliding rail 2 at the same side with the installation position of the retractor 61, an insulating layer is arranged in the winding 62, a contact element 64 is installed in the insulating layer, one end of the contact element extends out of the retractor 61, and the other end of the contact element extends out of the.

The dust cover is simple in structure and convenient to use, dust or sundries can be prevented from entering the rail when the automobile seat slides, and the service life of the sliding rail groove is prolonged.

Referring to fig. 11 and 12, the wire harness hiding device is disposed under the seat of the vehicle, or may be installed under the floor of the vehicle as required, and a space is left on the plane of the floor of the vehicle for installing a decorative floor so as to hide the whole device; the wire harness hiding device comprises a pulley block 703, a wire harness 702 arranged in a chute 1, a resetting device and a fixing frame 705 for fixing a plurality of chutes into a whole, wherein one section of the wire harness 702 is fixed on a slide rail, one end of the wire harness 702 passes through a through hole on the slide rail to be electrically connected with external electric equipment, the other end of the wire harness passes through a second reversing piece 7032 in the pulley block 703 to be electrically connected with an external power supply, the resetting device comprises a pull wire 701 and a first reversing piece 7031 arranged in the pulley block 703, one end of the pull wire 701 is fixed on the slide rail, the other end of the pull wire 701 passes through the first reversing piece 7031 in the pulley block 703 to be fixedly connected with the fixing frame 705, at least one third reversing piece 704 for positioning and guiding the wire harness 702 is arranged between the second reversing piece 7032 and the slide rail, at least one third reversing piece 704 for positioning and guiding the pull wire 701 is arranged between the first, a housing may be added to the exterior of the third diverter 704 for ease of installation.

Referring to fig. 11 and 12, when the sliding rail 2 moves to the right, the pull wire 701 is in a loose state, the end portion of the wiring harness 702 mounted on the sliding rail moves to the right, and because the lengths of the wiring harness and the pull wire are fixed, the pulley block 703 moves to the left under the driving of the wiring harness 702 while the sliding rail 2 moves, and the pull wire wound around the first reversing element 7031 is tensioned; similarly, when the slide rail moves to the left, the wire harness 702 is in a slack state, the end part of the pull wire 701 mounted on the slide rail moves to the left, the pulley block 703 moves to the right under the driving of the pull wire 701, and the wire harness 702 wound on the second reversing piece 7032 is tensioned. The device is when the slide rail removes, avoided unnecessary line to scatter around the slide rail, thereby played certain hidden function to the pencil, increase pleasing to the eye, assembly pulley 703 outside still is provided with the casing, this casing can be set for according to actual need certainly, first switching-over piece in this embodiment, second switching-over piece, third switching-over piece is the pulley, certainly also can replace with other devices that have the equivalent function, the direction of detouring of pencil or supplementary acting as go-between can be changed to the switching-over piece, be equipped with the spacing groove on the switching-over piece, it is spacing to pencil or supplementary acting as go-between, prevent to drop, pencil or supplementary acting as go-between slide on the switching-over piece and drive the switching-over piece and rotate, reduce the running resistance.

Of course, in other embodiments of the present invention, the first direction-changing member and the pull wire in the returning device may be replaced by an elastic member, the elastic member may be a spring, one end of the elastic member is fixed on the fixing frame, and the other end is fixedly connected to the second direction-changing member. When the sliding rail is positioned at the left end of the sliding groove, the elastic part is in a natural extension state, when the sliding rail moves to the right side, the wiring harness 702 drives the second reversing part 7032 to move to the left side, at the moment, the elastic part is in a stretching state, when the sliding rail moves to the left side, the wiring harness 702 is in a loosening state, at the moment, the elastic part gives a rightward pulling force to the second reversing part, and the wiring harness 702 is tensioned; of course, in other embodiments of the present invention, the first direction-changing member and the pull wire in the returning device may be replaced by a spring wire, one end of the spring wire is fixed on the fixing frame, and the other end is fixedly connected to the second direction-changing member.

The utility model provides a device long service life is hidden to pencil can set up below the installation face of seat, saves outside usage space, not only increases the power consumption security, no matter be long slide rail or short slide rail moreover, the pencil does not occupy too much space, and application scope is wide.

The both ends of this electronic slide rail assembly of seat still install the suggestion seat and remove the spacing sensor 8 of restriction position, and spacing sensor is prior art, no longer gives unnecessary details here the embodiment of the utility model discloses an in, hall sensor is chooseed for use to spacing sensor. The limit sensor may be installed at the end of the sliding chute, or may be installed on the fixing bracket 705 as required, or may be installed on the floor of the automobile, or may be installed as required.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any person skilled in the art can make any simple modification, equivalent change and modification to the above embodiments according to the technical spirit of the present invention without departing from the technical scope of the present invention.

Claims (10)

1. The utility model provides a seat electric slide rail assembly which characterized in that: the device comprises sliding chutes arranged in parallel, sliding rails arranged on the sliding chutes, driving devices arranged on the sliding rails and used for driving the sliding rails to move along the length direction of the sliding chutes, and locking devices arranged on the sliding rails and used for locking the sliding rails on the sliding chutes in an unlocking state when the sliding rails move and in a locking state when the sliding rails stop moving.

2. The power slide rail assembly for seats of claim 1, wherein: the driving device comprises a first cross beam with the end part installed on the sliding rail and a first power source which is installed on the first cross beam and the output shaft of which is connected with one end of the transmission shaft, a gear is installed at the other end of the transmission shaft, a rack matched with the gear is arranged on the sliding groove, and the gear is meshed with the rack.

3. The power slide rail assembly for seats of claim 1, wherein: the locking device comprises a second cross beam, a second power source, a lock, a swing rod, a transmission part and a locking part, wherein the end part of the second cross beam is arranged on the sliding rail; the sliding rail is provided with a first through hole for the bolt to extend out, and the sliding groove is provided with a plurality of second through holes for the bolt to extend out along the length direction.

4. The power slide rail assembly for seats of claim 3, wherein: a first elastic piece is arranged between the swing rod and the slide rail, one end of the first elastic piece is arranged on the slide rail, the other end of the first elastic piece is arranged on the swing rod, and the first elastic piece is in a pressed state when the locking device is in a locked state.

5. The power slide rail assembly for seats of claim 1, wherein: the dust cover that the both sides of slide rail still installed lie in the slide rail and move the direction side can be rolled up in order not to hinder the slide rail to remove when the slide rail removes and lie in the slide rail and move the ability of opposite direction side and spread out and cover in the spout in order to prevent dust or debris from falling into the spout simultaneously, and the dust cover includes the coiler and installs and twine the winding on the coiler, and one of coiler and winding is installed on the slide rail.

6. The seat power slide rail assembly of claim 5, wherein: two coiler symmetries set up the both ends at the slide rail, and the one end of coiling is installed on the coiler, the other end is installed at the tip with the spout of this coiler homonymy.

7. The power slide rail assembly for seats of claim 6, wherein: the retractor comprises a fixed frame and a rotating shaft which is rotatably arranged on the fixed frame and is used for fixing the end part of the winding belt and winding the winding belt when rotating; the one end of pivot is installed and is produced elastic deformation when the winding on the mount is stretched, is in the elastic component of kinetic energy that can pack up the winding of spreading out again with elastic potential energy conversion when the winding is in relaxed state, and the end of a thread drawing mechanism is installed to the other end of pivot, and the pivot tip is equipped with the contact with contact electric connection, and the end of a thread drawing mechanism includes the insulating seat of suit at the pivot tip, sets up and is equipped with a plurality of electrode disc on the insulating seat, electrode disc and contact electric connection.

8. The seat power slide rail assembly of claim 5, wherein: the bottom of the coiler is also provided with a dust removal device which can guide the coiling belt when the coiling belt is coiled so as to remove dust or sundries on the coiling belt, has certain pressing force on the coiling belt when the coiling belt is spread and smoothes the coiling belt, so that the coiling belt can be better attached to the top surface of the sliding groove.

9. The power slide rail assembly for seats of claim 1, wherein: the wire harness hiding device is also included; the wire harness hiding device comprises a pulley block provided with a second reversing piece, a wire harness, an end part of the wire harness is installed on the pulley block, the wire harness is electrically connected with external electric equipment through a through hole in the sliding rail, the other end of the wire harness bypasses the second reversing piece and is electrically connected with an external power supply, and the end part of the wire harness is installed on the pulley block and is simultaneously tensioned; and a plurality of third reversing pieces used for guiding the wiring harness are arranged between the sliding rail and the second reversing pieces.

10. The power slide rail assembly for seats of claim 9, wherein: the resetting device comprises a first reversing piece arranged in the pulley block, a pull wire with one end fixed on the slide rail and the other end wound around the first reversing piece and connected with the fixed frame, and a plurality of third reversing pieces used for positioning the pull wire and playing a role in guiding are arranged between the slide rail and the first reversing piece.

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