Vehicle seat slide rail structure and vehicle seat

Abstract

The present invention relates to a vehicle seat slide rail structure and a vehicle seat. The vehicle seat slide rail structure of the present invention comprises an upper slide rail, a lower slide rail, an unlocking unit and a driving unit. A locking portion is provided between the upper slide rail and the lower slide rail. The unlocking unit is connected to the locking portion by transmission, and can drive the locking portion to move to release the lock in response to an external first control signal. The driving unit comprises a driving portion provided on the upper slide rail, and a transmission portion provided between the driving portion and the lower slide rail. The transmission portion has two first pull wires wound on the driving end of the driving portion, and the winding directions of the two first pull wires are opposite, and are connected to the two ends of the lower slide rail in a one-to-one correspondence. Based on the unlocking of the locking portion, the driving portion can reel in one of the first pull wires due to receiving an external second control signal, so as to drive the upper slide rail to slide toward the end of the lower slide rail connected to the reeled first pull wire. The vehicle seat slide rail structure of the present invention has a simple structure, low cost, and small space occupation.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile parts, and in particular to a vehicle seat slide rail structure. The present invention also relates to a vehicle seat with the vehicle seat slide rail structure. Background Art

[0002] At present, for long slide rails, the electric transmission methods on the market mainly include toothed belt and gear transmission, and rack and gear transmission. Among them, for the use of toothed belt for transmission, due to size limitations, the width of the toothed belt and the diameter of the transmission wheel are small, and the transmission force that the toothed belt can withstand is limited. When the vehicle is in a non-horizontal state, the toothed belt not only needs to provide sliding force, but also needs to overcome the weight of the occupants and part of the gravity of the seat. At this time, the toothed belt transmission is prone to tooth slippage. When using rack transmission, due to the long travel of the long slide rail, a longer rack is required, so the process requirements for the rack are higher, and it is also difficult to ensure the matching accuracy between the rack and the gear. In addition, whether it is toothed belt transmission or rack transmission, there are problems such as large space occupation, high cost, and incompatibility with the upper and lower rail structures of manual slide rails. Summary of the invention

[0003] In view of this, the present invention aims to provide a vehicle seat slide rail structure, which has low cost and occupies less space.

[0004] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0005] A vehicle seat slide rail structure comprises a fixed lower slide rail, and an upper slide rail constrained in the lower slide rail and capable of sliding along the lower slide rail, a locking portion is provided between the upper slide rail and the lower slide rail, and the locking portion can lock the relative sliding between the upper slide rail and the lower slide rail, and the vehicle seat slide rail structure also comprises:

[0006] An unlocking unit is transmission-connected to the locking portion, and the unlocking unit can drive the locking portion to move to release the lock in response to an external first control signal;

[0007] The driving unit includes a driving part arranged on the upper slide rail, and a transmission part arranged between the driving part and the lower slide rail, the transmission part has two first pull wires wound on the driving end of the driving part, the winding directions of the two first pull wires are opposite, and the two first pull wires are connected to the two ends of the lower slide rail in a one-to-one correspondence, and based on the unlocking of the locking part, the driving part can reel in one of the first pull wires due to receiving an external second control signal to drive the upper slide rail to slide toward the end of the lower slide rail connected to the reeled first pull wire.

[0008] Furthermore, the driving part is a first rotational power output device arranged on the upper slide rail, a first gate wheel is connected to the power output end of the first rotational power output device, and the two first pull wires are both wound around the first gate wheel.

[0009] Furthermore, wire pre-tensioning mechanisms are respectively provided at both ends of the lower sliding rail.

[0010] Furthermore, the locking portion includes a pawl pivotally disposed on the upper slide rail, an elastic return member disposed between the pawl and the upper slide rail, and a clamping portion correspondingly disposed between the upper slide rail and the lower slide rail, and the pawl can be driven by the elastic return member to be clamped into the clamping portion to form a lock between the upper slide rail and the lower slide rail.

[0011] Furthermore, the unlocking unit includes a second rotary power output device arranged on the upper slide rail, a second gate wheel transmission-connected to the power output end of the second rotary power output device, and a second pull wire with one end wound around the second gate wheel and the other end connected to the pawl, and the second rotary power output device receives the first control signal to drive the pawl to rotate relative to the upper slide rail so that the pawl can be disengaged from the engaging portion.

[0012] Furthermore, a detection unit for detecting the rotational displacement of the pawl is provided on the upper slide rail.

[0013] Furthermore, a gap elimination structure is provided between the upper slide rail and the lower slide rail to eliminate the gap between the two, and the gap elimination structure includes:

[0014] Two abutment portions are arranged opposite to each other on both sides of the lower sliding rail, and each abutment portion is extended along the length direction of the lower sliding rail;

[0015] The lever members are at least one group provided on the upper slide rail, each group of the lever members is two lever members arranged oppositely on both sides of the upper slide rail, and each lever member has a load-bearing end and a pushing end arranged oppositely;

[0016] The elastic members are a plurality of elastic members respectively arranged between the load-bearing ends of the lever members on each side and the upper slide rail. The elastic members have a pressing function on the load-bearing ends so that the pushing ends are tilted and abut against the abutting portions. Due to the abutment, the lower slide rail has a force applied to the upper slide rail, thereby maintaining the upper slide rail in abutment with the lower slide rail in the vertical direction and maintaining the upper slide rail and the lower slide rail in a centered arrangement in the horizontal direction.

[0017] Furthermore, the pushing end is composed of a roller rotatably arranged on the lever member, and the lever member is clamped on the upper slide rail.

[0018] Furthermore, the lever members are provided in two groups on the upper slide rail and are arranged at both ends of the upper slide rail respectively. The elastic member is a linear spring with the middle part hooked on the upper slide rail and the two ends respectively pressed against the load-bearing ends at the corresponding ends.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] The vehicle seat slide rail structure of the present invention realizes the adjustment of the vehicle seat slide rail by adopting a wire drive method. Compared with the traditional toothed belt and rack drive method, it has a simple structure, low cost and occupies less space.

[0021] In addition, by setting a wire pre-tightening mechanism, the performance of the slide rail structure can be effectively guaranteed, and by setting a second wire and a second rotary power output device to unlock the upper and lower slide rails, the structure is simple and the cost is low. In addition, by setting a slide rail gap elimination structure, abnormal noise between the upper slide rail and the lower slide rail can be effectively prevented, thereby improving the use effect of the slide rail structure.

[0022] Another object of the present invention is to provide a vehicle seat installed on a vehicle body, the vehicle seat including a seat body, a slide rail structure as described above being arranged between the seat body and the vehicle body, and a control unit being provided on the seat body, and the control unit being able to output the first control signal and the second control signal due to external manipulation.

[0023] The vehicle seat of the present invention can be easily adjusted by adopting the above-mentioned vehicle seat slide rail structure, and has low cost and occupies less space, so as to have a better use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 This is a schematic structural diagram of a vehicle seat slide rail according to Embodiment 1 of the present invention;

[0026] Figure 2 It is a structural schematic diagram of the vehicle seat slide rail according to the first embodiment of the present invention from another perspective;

[0027] Figure 3 It is a left side view of the vehicle seat slide rail according to the first embodiment of the present invention;

[0028] Figure 4 This is a disassembled exploded view of the vehicle seat slide rail according to the first embodiment of the invention;

[0029] Figure 5 This is a schematic structural diagram of the slide rail gap elimination structure according to the first embodiment of the present invention;

[0030] Figure 6 It is a structural schematic diagram of the upper slide rail, the lever member and the locking portion according to the first embodiment of the present invention;

[0031] Figure 7 It is a disassembled exploded view of the slide rail gap elimination structure according to the first embodiment of the present invention;

[0032] Figure 8 This is a schematic structural diagram of the upper slide rail according to the first embodiment of the present invention;

[0033] Fig. 9 It is a side view of the upper slide rail according to the first embodiment of the present invention;

[0034] Fig.10 This is a diagram showing the assembly state of the reinforcement plate and the upper slide rail according to the first embodiment of the present invention;

[0035] Fig.11 This is a schematic structural diagram of a reinforcement plate according to Embodiment 1 of the present invention;

[0036] Fig.12 It is an exploded schematic diagram of the assembly relationship of the torsion spring, the lever member and the folding plate according to the first embodiment of the present invention;

[0037] Fig.13 This is a schematic structural diagram of a reinforcement plate according to Embodiment 1 of the present invention;

[0038] Fig.14 Schematic diagram of the force exerted by the lower slide rail on the upper slide rail according to the first embodiment of the present invention

[0039] Fig.15 This is a schematic structural diagram of the first brake wheel according to the first embodiment of the present invention;

[0040] Fig.16 This is a diagram showing the connection state of the first brake wheel, the first pull wire and the guide tube according to the first embodiment of the present invention;

[0041] Fig.17 for Figure 1 A top view of

[0042] Fig.18 This is a diagram showing the assembly state of some parts of the vehicle seat slide rail structure according to the first embodiment of the present invention;

[0043] Fig.19 It is a structural schematic diagram of the upper slide rail according to the first embodiment of the present invention from another perspective;

[0044] Description of reference numerals:

[0045] 1-lower slide rail, 2-upper slide rail, 3-reinforcement plate, 4-roller, 5-pulley, 6-lever, 7-linear spring, 8-torsion spring, 9-rotating shaft, 10-pawl, 11-first motor, 12-mounting frame, 13-first pull wire, 14-pre-tightening bolt, 15-first brake wheel, 16-guide tube;

[0046] 101-through hole, 102-fixing hole;

[0047] 201-folding plate, 202-hanging ear, 203-first engaging hole, 204-outer flange, 2041-slot, 2042-notch, 205-installation slot, 206-hollow portion, 207-connecting ear, 208-installation hole;

[0048] 601-main board, 602-lower flange, 603-lever shaft, 604-upper flange;

[0049] 1201- flange;

[0050] 1301-Card head;

[0051] 1501-metal sheet, 1502-spiral groove, 1503-clamping groove, 1504-protrusion; DETAILED DESCRIPTION

[0052] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0053] In the description of the present invention, it should be noted that the terms "upper", "lower", "top", "bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second" and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0054] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0055] Embodiment 1

[0056] This embodiment relates to a vehicle seat slide rail structure, which as a whole includes an upper slide rail, a lower slide rail, an unlocking unit and a driving unit; wherein the lower slide rail is fixed on the vehicle body floor, the upper slide rail is constrained in the lower slide rail and can slide along the lower slide rail, and a locking portion is provided between the upper slide rail and the lower slide rail, and the locking portion can constitute a lock for the relative sliding between the long slide rail and the lower slide rail. The unlocking unit is in transmission connection with the locking portion, and the unlocking unit can drive the locking portion to operate to release the lock in response to an external first control signal.

[0057] The driving unit includes a driving portion arranged on the upper slide rail, and a transmission portion arranged between the driving portion and the lower slide rail, the transmission portion having two first pull wires wound on the driving end of the driving portion, and the two first pull wires are wound in opposite directions and are connected to the two ends of the lower slide rail in a one-to-one correspondence. Based on the unlocking of the locking portion, the driving portion can reel in one of the first pull wires in response to an external second control signal to drive the upper slide rail to slide toward the end of the lower slide rail connected to the reeled first pull wire. The vehicle seat slide rail structure of this embodiment realizes the adjustment of the vehicle seat slide rail by adopting a pull wire transmission method. Compared with the traditional toothed belt and rack transmission method, it has a simple structure, low cost, and occupies less space.

[0058] Based on the above design concept, an exemplary structure of the vehicle seat slide rail structure of this embodiment is as follows: Figures 1 to 4 As shown in , in order to improve the use effect, a rail gap elimination structure is provided between the upper rail 2 and the lower rail 1 to eliminate the gap between the two. It should be noted that the gap elimination in this embodiment specifically refers to that the gap between the upper rail 2 and the lower rail 1 in the vertical direction is zero, and the two are arranged in the center in the horizontal direction, and the gap between the two is within the design range and close to zero.

[0059] Combination Figures 5 to 7 As shown in , the slide rail gap elimination structure of this embodiment specifically includes abutment parts, lever members 6 and elastic members. The abutment parts are specifically two relatively arranged on both sides of the lower slide rail 1, and each abutment part is extended along the length direction of the long slide rail. The lever members 6 are at least one group arranged on the upper slide rail 2, and each group of lever members 6 is two relatively arranged on both sides of the upper slide rail 2, and each lever member 6 has a relatively arranged load-bearing end and a push-up end. The elastic members are several respectively arranged between the load-bearing ends of the lever members 6 on each side and the upper slide rail 2. The elastic member has a pressure on the load-bearing end so that the push-up end is tilted and abuts against the abutment part, and because of the abutment, the lower slide rail 1 has a force applied to the upper slide rail 2, and the upper slide rail 2 is maintained in abutment with the lower slide rail 1 in the vertical direction, and the upper slide rail 2 and the lower slide rail 1 are maintained in a centered arrangement in the horizontal direction.

[0060] Specifically, the structure of the lower rail 1 is composed of Figure 5 As shown in Figure 5The lower rail 1 is a straight strip-shaped structure extending from the cross section shown in the figure. The lower rail 1 is a symmetrical structure in the width direction and includes two side walls arranged opposite to each other and a bottom wall connecting the two side walls. The free ends of the two side walls are configured to be bent inward. In addition, in order to fix the lower rail 1 on the vehicle body floor, two fixing holes 102 are respectively provided at both ends of the lower rail 1 for fasteners such as bolts to pass through. In order to improve the use effect of the present rail structure, each fixing hole 102 is arranged at the center position of the width direction of the lower rail 1. In addition, by Figure 4 As shown in the figure, a through hole 101 for the following pre-tightening bolt 14 to pass through is formed on one side wall of the lower rail 1, and corresponding to the through hole 101, a polygonal hole adapted to the end of the pre-tightening bolt 14 is constructed on the other side wall.

[0061] The structure of the upper slide rail 2 is as follows Figure 8 and Fig. 9 As shown in , the structure is also symmetrical in the width direction. The upper slide rail 2 is composed of two parts connected by buckling, and includes a main body in the middle, and two folding plates 201 disposed on two opposite sides of the main body and connected to the main body by bending, and the main body forms a cavity with a bottom opening. In addition, a through hole is formed on the upper slide rail 2, and two connection holes are disposed on both sides of the through hole.

[0062] In addition, by Figure 8 As shown in the figure, an outward-turned hanging ear 202 is constructed in the middle of the length direction of each folding plate 201, and two oppositely arranged outer flanges 204 are constructed on each folding plate 201, and adjacently arranged clamping grooves 2041 and notches 2042 are formed on each outer flange 204. The clamping groove 2041 is used to clamp the lever shaft 603 described below, and a limiting portion is formed at the notch of the clamping groove 2041 to limit the lever shaft 603 described below from escaping from the clamping groove 2041. Figure 4 As shown in , the locking slot 2041 is configured as an arc-shaped slot that bends toward one side of the hanging ear 202 , and the limiting portion is specifically formed by the slot wall of the arc-shaped slot.

[0063] Still by Figure 8 As shown in FIG. 1 , a hollow portion 206 is constructed on one side wall of the main body, and two connecting ears 207 arranged outwardly are formed on the two edges of the hollow portion 206, and an axial hole for installing the rotating shaft 9 described below is formed on each connecting ear 207. In addition, two mounting grooves 205 are respectively constructed at both ends of the upper slide rail 2 in the length direction and are arranged along the width direction thereof. Fig. 9 , Fig.10 Combined with Figure 5 As shown in , at the position of the installation groove 205 , reinforcing plates 3 are respectively fixedly connected to both sides of the upper slide rail 2 , and pulleys 5 are rotatably provided on the reinforcing plates 3 .

[0064] Among them, the structure of the reinforcing plate 3 is composed of Figure 7 As shown in FIG. 1 , it has a long side plate adapted to be arranged on one side wall of the main body and a short side plate adapted to be arranged on the outer flange 204, and a mounting shaft is inherently arranged on the short side plate, and the pulley 5 is rotatably arranged on the mounting shaft. Figure 5 As shown in the figure, in the assembled state, the long side panels are fixedly connected to the side walls of the main body, the short side panels are arranged in contact with the outer flange 204, the pulley 5 is located in the installation groove 205, and the upper slide rail 2 is in contact with the lower slide rail 1 via the pulley 5 and slides along the lower slide rail 1.

[0065] As a preferred embodiment, the lever members 6 of this embodiment are specifically arranged in two groups, four in total, on the upper slide rail 2 and arranged on each of the outer flanges 204. The structure of the lever member 6 is as follows: Fig.12 As shown in FIG. 6 , it has a main board 601 that can be arranged in contact with the outer flange 204, and the bottom of the main board 601 is bent to one side, so as to improve the structural strength of the lever member 6. In addition, a lever shaft 603 that passes through the main board 601 is fixedly connected to the main board 601, and an upper flange 604 is formed on the top of the main body corresponding to the lever shaft 603. Fig.13 As shown in , the lever member 6 of this embodiment is engaged in the above-mentioned engaging groove 2041 via the lever shaft 603, thereby achieving the engaging of the lever member 6 on the upper slide rail 2, and during specific operation, the upper flange 604 can be made to abut against the upper slide rail 2 to limit the rotation of the lever member 6.

[0066] In addition, based on the above structure of the slot 2041, when the lever shaft 603 is mounted in the slot 2041, its top can abut against the slot wall of the arc slot, thereby preventing it from slipping out of the arc slot. In addition, for the convenience of processing and manufacturing, the lever shaft 603 of this embodiment specifically adopts a step screw. Of course, in addition to the step screw, the lever shaft 603 can also adopt other structures. It should be noted that the lever member 6 of this embodiment can be provided with one group in addition to two groups. In this case, the lever member 6 is preferably arranged in the middle of the length direction of the upper slide rail 2.

[0067] The aforementioned load-bearing end is specifically constituted by the lower flange 602 constructed on the main board 601, and the pushing end is constituted by the roller 4 rotatably arranged on the main board 601 adjacent to the lever shaft 603, and when the lever member 6 is clamped on the upper slide rail 2, the roller 4 is located at the above-mentioned notch 2042. By the roller 4 abutting against the above-mentioned abutting inclined surface, the friction force generated by the abutment between the upper slide rail 2 and the lower slide rail 1 can be reduced when the upper slide rail 2 slides along the lower slide rail 1, thereby facilitating the sliding of the upper slide rail 2. In terms of specific structure, a rivet is fixedly connected to the main board 601, and the roller 4 is rotatably arranged on the rivet. It should be noted that the load-bearing end of this embodiment, in addition to being constituted by the roller 4, can also be constituted by a slider fixedly arranged on the main board 601, but this structure will increase the friction between the upper slide rail 2 and the lower slide rail 1, and it is not convenient for the upper slide rail 2 to slide. The elastic member is specifically two linear springs 7 disposed on both sides of the upper slide rail 2, and the middle of each linear spring 7 is hooked on the hanging ear 202, and the two ends are respectively pressed against the lower flange 602 of the corresponding end.

[0068] It should be pointed out that, during the specific manufacturing and installation, the lever member 6 should be installed on the upper slide rail 2 so that its lower flange 602 is higher than the hanging ear 202 of the upper slide rail 2, so that the middle of the linear spring 7 can be hooked on the hanging ear 202, and the two ends can be pressed against the lower flange 602 at each end, so that the above-mentioned roller 4 can be tilted and abut against the abutting inclined surface. In addition, in addition to the linear spring 7, the elastic member of this embodiment can also use other components that can increase the elastic force, such as a torsion spring 8, a coil spring and a tension spring.

[0069] Depend on Fig.14 As shown in the figure, by arranging the linear spring 7 and the lever member 6, the roller 4 can be always tilted up to contact the abutting inclined surface of the lower slide rail 1, and due to the symmetrical arrangement of the roller 4 and the abutting inclined surface, the lower slide rail 1 has two vertical downward forces F1 applied to the upper slide rail 2, and two balanced horizontal forces F2, so that the upper slide rail 2 and the lower slide rail 1 can always be abutted in the vertical direction, and the gap between the two in the vertical direction can be eliminated. At the same time, the alignment between the upper slide rail 2 and the lower slide rail 1 can be maintained in the horizontal direction, thereby effectively preventing abnormal noise between the upper slide rail 2 and the lower slide rail 1.

[0070] The aforementioned driving part is a first rotary power output device disposed on the upper slide rail 2, a first brake wheel 15 is connected to the power output end of the first rotary power output device, and two first pull wires 13 are both wound around one of the brake wheels. Figure 1 and Figure 3 As shown in the figure, the first rotary power output device of this embodiment is specifically the first motor 11, and the first cable 13 specifically adopts the brake cable in the prior art. Of course, in addition to the brake cable, the first cable 13 can also adopt nylon rope, fabric braided rope, etc.

[0071] The structure of the first brake wheel 15 is as follows: Fig.15 Combined with Figure 3 As shown in , it is mainly made of plastic, and in order to improve the structural strength of the first gate wheel 15, a metal sheet 1501 is embedded in the first gate wheel 15. The first gate wheel 15 is circular as a whole, and two spiral grooves 1502 with opposite rotation directions are formed on its outer circumference, and the ends of the spiral grooves 1502 are roughly located in the middle of the thickness direction of the first gate wheel 15, so that the end of the first pull wire 13 connected to the lower slide rail 1 can be roughly located in the middle of the width direction of the lower slide rail 1, thereby improving the pulling effect on the upper slide rail 2.

[0072] In addition, two connecting grooves corresponding to the two spiral grooves 1502 and intersecting with each other are formed on both side surfaces of the first brake wheel 15. In order to facilitate the installation of the first pull wire 13 on the first brake wheel 15, a clamping groove 1503 penetrating the first brake wheel 15 is formed at the end of each connecting groove. Correspondingly, a clamping head 1301 is provided at one end of each first pull wire 13, and a plug is provided at the other end of each first pull wire 13. Among them, the clamping groove 1503 is specifically in the shape of a "convex" character, so that it can be installed as shown in FIG. Fig.16 As shown in , the clamping head 1301 is clamped in the clamping groove 1503, and each first pull wire 13 is wound in the corresponding spiral groove 1502, so that the first pull wire 13 can be installed on the first brake wheel 15.

[0073] In addition, in order to realize the installation of the first brake wheel 15 on the upper slide rail 2, the Figure 2 and Figure 4 As shown in the figure, mounting brackets 12 are respectively provided on both sides of the upper slide rail 2. The mounting bracket 12 is a plate-shaped structure as a whole, and a flange 1201 protruding outwardly to one side thereof is formed on the mounting bracket 12 corresponding to the above-mentioned through hole, and a through hole is constructed on the mounting bracket 12 corresponding to the above-mentioned connecting hole. The above-mentioned first motor 11 and the two mounting brackets 12 and the upper slide rail 2 are connected together by bolts and nuts inserted into the connecting hole and the through hole.

[0074] In order to fix the first brake wheel 15, circular protrusions 1504 are formed at the center position of the first brake wheel 15 and protrude outward from its two side surfaces, and the two protrusions 1504 are respectively inserted into the flanges 1201 of the mounting frame 12 on the corresponding sides. In addition, in order to facilitate the connection between the first brake wheel 15 and the first motor 11, a square groove is provided on one of the protrusions 1504. Correspondingly, the power output end of the first motor 11 is a square shaft adapted to the square groove, so that the transmission connection between the first motor 11 and the first brake wheel 15 can be achieved by inserting the square shaft into the square groove. It should be noted that in addition to directly connecting the first brake wheel 15 to the first motor 11, a square roller can also be used, and its two ends are respectively connected to the first brake wheel 15 and the first motor 11, so as to achieve an indirect connection between the first brake wheel 15 and the first motor 11.

[0075] Depend on Fig.17 As shown in FIG, based on the above-mentioned fixing hole 102 being located in the middle of the width direction of the lower slide rail 1, in order to prevent the first pull wire 13 from interfering with the fastener passing through the fixing hole 102, Fig.18 As shown in FIG. 1 , each first pull wire 13 is provided with a curved guide tube 16 for changing the direction of the first pull wire 13. Fig.19 As shown in the figure, two installation plates arranged at intervals are fixedly connected in the upper slide rail 2, and two installation holes 208 arranged in a staggered manner are formed on the two installation plates, and the two ends of the guide tube 16 are respectively fixedly penetrated in the two installation holes 208. Therefore, by arranging the first pull wire 13 through the guide tube 16, the first pull wire 13 can be arranged in a staggered manner relative to the corresponding fixing hole 102, thereby preventing the first pull wire 13 from affecting the installation of the fastener in the fixing hole 102. Of course, in addition to setting the guide tube 16, the first pull wire 13 can also be pushed to one side when installing the fastener in the fixing hole 102, which can also prevent the first pull wire 13 from affecting the installation of the fastener.

[0076] It should be pointed out that, since the brake wire transmission is a non-rigid transmission, in order to ensure the transmission effect, in this embodiment, a wire pre-tightening mechanism is provided at both ends of the lower slide rail 1. Figure 2 Combined with Figure 3 As shown in , the wire tensioning mechanism specifically includes a tensioning bolt 14 fixed on the lower slide rail 1, and its overall structure is similar to that of an ordinary bolt, except that a socket for the above-mentioned plug-in column is provided on the rod of the tensioning bolt 14, and the end of the tensioning bolt 14 is an octagonal structure. When pre-tightening, first pass the head of the tensioning bolt 14 through the polygonal hole and place it in the lower slide rail 1, and then insert the plug-in column of the first tensioning wire 13 into the socket; then, rotate the tensioning bolt 14 by a constant torque device or a wrench until the torque value of the first tensioning wire 13 reaches the design value, then embed the end of the first tensioning wire 13 into the above-mentioned polygonal hole, and tighten the tensioning bolt 14 with a nut.

[0077] The locking part of this embodiment includes a pawl 10 pivotally mounted on the upper rail 2, an elastic return member disposed between the pawl 10 and the upper rail 2, and a corresponding engaging portion disposed between the upper rail 2 and the lower rail 1, and the pawl 10 can be driven by the elastic return member to engage in the engaging portion to lock the upper rail 2 and the lower rail 1. Figure 5 and Figure 7As shown in the figure, the pawl 10 is rotatably arranged on the upper slide rail 2 by means of the rotating shaft 9, and the rotating shaft 9 is fixedly penetrated on the two connecting ears 207. The specific structure of the pawl 10 is similar to that of the prior art, and it has two ear plates arranged opposite to each other, and the two ear plates are sleeved on the rotating shaft 9 and clamped on the outside of the two connecting ears 207. The clamping part specifically includes a first clamping hole 203 and a second clamping hole respectively constructed on the upper slide rail 2 and the lower slide rail 1, and the first clamping hole 203 and the second clamping hole are multiple and spaced along the length direction of the upper slide rail 2 and the lower slide rail 1.

[0078] The elastic return member is specifically a torsion spring 8, the middle of which is rotatably arranged on the rotating shaft 9, and the two ends of which are respectively abutted between the upper slide rail 2 and the pawl 10. With such a configuration, under the elastic action of the torsion spring 8, the pawl 10 can be snapped into the overlapping first snap-in hole 203 and the second snap-in hole, thereby realizing the locking between the upper slide rail 2 and the lower slide rail 1, and the pawl 10 can rotate relative to the upper slide rail 2 due to the external force, so as to escape from the first snap-in hole 203 and the second snap-in hole, thereby releasing the locking between the upper slide rail 2 and the lower slide rail 1. Among them, the locking structure and locking principle between the upper slide rail 2 and the lower slide rail 1 of this embodiment are similar to the prior art, and the prior art can be used for reference during specific manufacturing. It should be noted that in addition to the torsion spring 8, the elastic return member of this embodiment can also adopt other structures such as tension springs or compression springs.

[0079] The unlocking unit specifically includes a second rotary power output device, a second brake wheel, and a second pull wire, wherein the second rotary power output device is arranged on the upper slide rail 2, the second brake wheel is connected to the power output end of the second rotary power output device by transmission, one end of the second pull wire is wound on the second brake wheel, and the other end is connected to the ratchet 10. The second rotary power output device receives the first control signal and can reel in the second pull wire, thereby driving the ratchet 10 to rotate relative to the upper slide rail 2, so that the ratchet 10 is disengaged from the engaging portion, and the locking between the upper slide rail 2 and the lower slide rail 1 is released. Among them, in order to facilitate the design and implementation, the second rotary power output device of this embodiment specifically adopts a second motor, and the second pull wire adopts a brake wire in the prior art, and its pre-tightening structure and pre-tightening method can refer to the first pull wire 13 mentioned above. Of course, in addition to the brake wire, the second pull wire can also adopt nylon rope, fabric braided rope, etc. In addition, the structure of the second brake wheel can refer to the structure of the first brake wheel 15 mentioned above, which will not be repeated in this article.

[0080] In order to further improve the automation performance of the vehicle seat slide rail structure, a detection unit for detecting the rotational displacement of the pawl 10 is provided on the upper slide rail 2. The detection unit is specifically a displacement sensor provided on the pawl 10. The displacement sensor and the first motor 11 and the second motor are all connected to the same control unit. The control unit can be a vehicle ECU or an electric switch provided on the vehicle seat. Specifically, the control unit first controls the first motor 11 to rotate to drive the pawl 10 to rotate, and when the displacement sensor detects that the pawl 10 rotates to a suitable position, a detection signal is sent to the control unit so that the control unit controls the second motor to rotate forward or reverse, thereby realizing the forward or backward movement of the vehicle seat. The installation structure and detection method of the displacement sensor can refer to the prior art. In addition, the suitable position specifically refers to the position where the pawl 10 rotates to disengage from the first engaging hole 203 and the second engaging hole.

[0081] Based on the above overall description, the vehicle seat slide rail structure of the present embodiment realizes the adjustment of the vehicle seat by adopting the first gate wire transmission, and has a simple structure, is easy to assemble, and has a low cost; in addition, by arranging the first pull wire 13 and the first gate wheel 15 inside the upper slide rail 2, compared with the traditional electric slide rail, it occupies less space, and can reduce the lateral size of the vehicle seat slide rail structure, thereby greatly reducing the reserved gap required for the vehicle body carpet, and thus can improve the overall aesthetics of the vehicle body; in addition, by setting a slide rail gap elimination structure, it can effectively prevent abnormal noise from occurring between the upper slide rail 2 and the lower slide rail 1, thereby improving the use effect of the slide rail structure.

[0082] Embodiment 2

[0083] The present embodiment relates to a vehicle seat, which is installed on a vehicle body, and the vehicle seat includes a seat body, and its structure is similar to that of the prior art. A slide rail structure as described in the first embodiment is arranged between the seat body and the vehicle body, and a control unit is arranged on the seat body, and the control unit can output the first control signal and the second control signal as described in the first embodiment due to external manipulation, and can receive the detection signal of the displacement sensor. Specifically, for the convenience of operation, the control unit of the present embodiment is specifically an electric control switch arranged on the seat body.

[0084] The vehicle seat of this embodiment, by adopting the above-mentioned vehicle seat slide rail structure, can be easily adjusted, has low cost, occupies less space, and thus can have a better use effect.

[0085] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle seat slide rail structure, comprising a fixed lower slide rail (1), and an upper slide rail (2) constrained in the lower slide rail (1) and capable of sliding along the lower slide rail (1), a locking portion being provided between the upper slide rail (2) and the lower slide rail (1), the locking portion being capable of locking the relative sliding between the upper slide rail (2) and the lower slide rail (1), characterized in that: The vehicle seat slide rail structure also includes: An unlocking unit is transmission-connected to the locking portion, and the unlocking unit can drive the locking portion to move to release the lock in response to an external first control signal; A driving unit, comprising a driving part arranged on the upper slide rail (2), and a transmission part arranged between the driving part and the lower slide rail (1), the transmission part having two first pull wires (13) wound on the driving end of the driving part, the two first pull wires (13) being wound in opposite directions and being connected to the two ends of the lower slide rail (1) in a one-to-one correspondence, and based on the unlocking of the locking part, the driving part can reel in one of the first pull wires (13) by receiving an external second control signal, so as to drive the upper slide rail (2) to slide toward the end of the lower slide rail (1) connected to the reeled first pull wire (13); the driving part is a first rotary power output device arranged on the upper slide rail (2), a first gate wheel (15) being connected to the power output end of the first rotary power output device, and the two first pull wires (13) are both wound on the first gate wheel (15); The locking portion comprises a pawl (10) pivotally arranged on the upper slide rail (2), an elastic return member arranged between the pawl (10) and the upper slide rail (2), and a clamping portion correspondingly arranged between the upper slide rail (2) and the lower slide rail (1), and the pawl (10) can be driven by the elastic return member to be clamped into the clamping portion to form a lock between the upper slide rail (2) and the lower slide rail (1); A gap eliminating structure capable of eliminating the gap between the upper slide rail (2) and the lower slide rail (1) is provided between the upper slide rail (2) and the lower slide rail (1), and the gap eliminating structure comprises: Two abutment portions are arranged opposite to each other on both sides of the lower sliding rail (1), and each abutment portion is extended along the length direction of the lower sliding rail (1); The lever members (6) are at least one group arranged on the upper slide rail (2), each group of the lever members (6) being two arranged oppositely on both sides of the upper slide rail (2), and each of the lever members (6) has a load-bearing end and a pushing end arranged oppositely; The elastic members are a plurality of elastic members respectively arranged between the load-bearing ends of the lever members (6) on each side and the upper slide rail (2). The elastic members have a pressing effect on the load-bearing ends so that the pushing ends are tilted and abut against the abutting portions. Due to the abutment, the lower slide rail (1) has a force applied to the upper slide rail (2), thereby maintaining the abutment between the upper slide rail (2) and the lower slide rail (1) in the vertical direction, and maintaining the centering arrangement between the upper slide rail (2) and the lower slide rail (1) in the horizontal direction.

2. The vehicle seat slide rail structure according to claim 1, characterized in that: Wire pre-tensioning mechanisms are respectively provided at both ends of the lower sliding rail (1).

3. The vehicle seat slide rail structure according to claim 1, characterized in that: The unlocking unit comprises a second rotary power output device arranged on the upper slide rail (2), a second gate wheel transmission-connected to the power output end of the second rotary power output device, and a second pull wire with one end wound around the second gate wheel and the other end connected to the pawl (10), and the second rotary power output device receives the first control signal and can drive the pawl (10) to rotate relative to the upper slide rail (2), so that the pawl (10) is disengaged from the engaging portion.

4. The vehicle seat slide rail structure according to claim 3, characterized in that: A detection unit for detecting the rotational displacement of the ratchet pawl (10) is provided on the upper slide rail (2).

5. The vehicle seat slide rail structure according to claim 1, characterized in that: The pushing end is composed of a roller (4) rotatably arranged on the lever member (6), and the lever member (6) is clamped on the upper slide rail (2).

6. The vehicle seat slide rail structure according to claim 1, characterized in that: The lever members (6) are provided in two groups on the upper slide rail (2) and are arranged at the two ends of the upper slide rail (2), respectively. The elastic member is a linear spring (7) with a middle portion hooked on the upper slide rail (2) and two ends respectively pressed against the load-bearing end at the corresponding end.

7. A vehicle seat, mounted on a vehicle body, comprising a seat body, characterized in that: A vehicle seat slide rail structure as described in any one of claims 1 to 6 is arranged between the seat body and the vehicle body, and a control unit is provided on the seat body, and the control unit can output the first control signal and the second control signal due to external manipulation.

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