CN211765076U - Clutch mechanism of electric sliding rail - Google Patents

Abstract

The utility model discloses a clutch mechanism of an electric slide rail, the electric slide rail comprises a motor and two slide rail assemblies, each slide rail assembly comprises an outer slide rail, an inner slide rail and a transmission mechanism, the transmission mechanism comprises a first transmission piece and a second transmission piece which are connected in a transmission way, and the first transmission piece is fixed with the outer slide rail; the clutch mechanism includes: the fixing part is respectively fixed with the seat and the inner slide rail; the driving part is in transmission connection with the motor and can rotate under the driving of the motor; the clutch piece is connected to the driving part in a sliding mode, is matched with or separated from the second transmission piece and can rotate synchronously along with the driving part; under the cooperation state, the clutch piece is connected with the transmission of the second transmission piece, and the second transmission piece is matched with the first transmission piece and can drive the inner slide rail to slide relative to the outer slide rail. By adopting the structure, the matching and the separation of the transmission connection between the motor and the transmission mechanism can be realized by operating the clutch piece, so that the seat adopting the electric slide rail can be quickly adjusted.

Description

Clutch mechanism of electric sliding rail

The application is a divisional application with application date of 2019, 06, 18 and application number of 201920922173.7, and the invention provides an electric slide rail and a slide rail assembly of a vehicle seat.

Technical Field

The utility model relates to an electronic slide rail technical field, concretely relates to clutch of electronic slide rail.

Background

With the development of the automotive industry, passengers have increasingly demanded the functionality of vehicle seats; the seat slide rail is mainly used for connecting a seat basin and a vehicle bottom plate of the seat, so that the front and back adjustment of the seat is realized, and a passenger can adjust the seat to the most comfortable position according to the requirement of the passenger; and for the front seats of the seven middle-row seats and the single door, the seats are required to have a quick front-back adjusting function in order to facilitate the entry of the back row.

The structure of the existing electric sliding rail in the current market mainly comprises an inner sliding rail, an outer sliding rail, a transmission mechanism and a motor, wherein the transmission mechanism can be driven only by the motor in the scheme so as to drive the inner sliding rail to move back and forth, so that the electric adjustment of the sliding rail is realized; the adjusting speed of the slide rail is determined by the rotating speed of the motor and the transmission ratio of the transmission mechanism, but the adjusting speed is a fixed value, and the quick adjusting function cannot be realized.

Therefore, how to provide such a clutch mechanism still remains a technical problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an electronic slide rail's clutching mechanism can realize the cooperation that the transmission is connected between motor and the drive mechanism and break away from for the seat that has adopted electronic slide rail also can carry out quick adjustment.

In order to solve the technical problem, the utility model provides an engaging and disengaging gear of electronic slide rail, electronic slide rail includes motor and two slide rail assemblies, each the slide rail assembly all includes outer slide rail, interior slide rail and drive mechanism, drive mechanism includes first driving medium and the second driving medium that the transmission is connected, first driving medium with outer slide rail is fixed, engaging and disengaging gear includes: the fixing part is respectively fixed with the seat and the inner slide rail; the driving part is in transmission connection with the motor and can rotate under the driving of the motor; the clutch piece is connected to the driving part in a sliding mode, is matched with or separated from the second transmission piece and can rotate synchronously with the driving part; under the matching state, the clutch piece is in transmission connection with the second transmission piece, and the second transmission piece is matched with the first transmission piece and can drive the inner slide rail to slide relative to the outer slide rail.

By adopting the structure, the matching or the separation of the transmission connection between the motor and the transmission mechanism can be realized by operating the clutch piece, so that the seat adopting the electric slide rail can be quickly adjusted.

Optionally, the driving part includes a rotating sleeve, and the clutch end of the clutch member is capable of passing through the rotating sleeve and sliding along the axial direction of the rotating sleeve.

Optionally, a closing plate is fixedly arranged at one end of the rotating sleeve, a rotating flange is arranged at the other end of the rotating sleeve, the closing plate and the rotating flange are respectively provided with a limiting hole matched with the clutch piece, a clutch end of the clutch piece can sequentially penetrate through the limiting holes of the closing plate and the rotating flange and is matched with the second transmission piece, and a driving end of the clutch piece is positioned outside the rotating sleeve; the outer wall of the clutch piece is also provided with a limiting structure, and a return spring is further arranged between the limiting structure and the sealing plate.

Optionally, the clutch piece includes four clutch levers, the second driving medium is equipped with bar connecting block, four the clutch lever evenly sets up along circumference, four the outer wall of clutch lever is equipped with reset spring respectively the cover.

Optionally, the clutch mechanism further comprises a transmission shaft, one end of the transmission shaft is in transmission connection with a rotating shaft of the motor, and the other end of the transmission shaft is inserted into a space enclosed by the four clutch rods and is in coaxial transmission with the rotating sleeve.

Optionally, the driving portion is further provided with a positioning pin, the cylinder wall of the rotating sleeve and the side wall of the rotating flange are respectively and correspondingly provided with a positioning hole, and the positioning holes are matched with the positioning pin.

Optionally, the fixing portion includes a fixing sleeve, the rotating sleeve is sleeved in the fixing sleeve and can rotate relative to the fixing sleeve, and lubricating grease is coated between the rotating sleeve and the fixing sleeve.

Optionally, the clutch device further comprises a sliding part, the sliding part is located between the driving end of the clutch part and the fixing part, and the sliding part can act on the driving end and at least can be used for driving the clutch part to be separated from the second transmission part.

Optionally, the sliding part is further provided with a guide structure, and the sliding part can move along the axial direction of the driving part under the action of the guide structure.

Optionally, the clutch device further comprises a tension spring, two ends of the tension spring are respectively fixed to the sliding piece and the fixing portion, and the sliding piece can be separated from the driving end of the clutch piece under the action of the tension spring.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of an electric slide rail;

fig. 2 is an exploded view of a connection structure of a slide rail assembly and a clutch mechanism provided by the present invention;

fig. 3 is a schematic structural diagram of an embodiment of a clutch mechanism provided in the present invention;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 3;

FIG. 6 is a view of FIG. 3 in the direction C-C;

FIG. 7 is a right side view of FIG. 3;

fig. 8 is an exploded view of fig. 3.

In the accompanying fig. 1-8, the reference numerals are illustrated as follows:

100-a slide rail assembly; 200-a motor; 300-a scaffold;

10-a drive device; 20-outer slide rail; 30-an inner slide rail; 40-a gear box, 401-a strip-shaped connecting block, 402-a fixing bracket and 403-a cover plate; 50-a screw rod, 501-a front support, 502-a rear support;

1-fixed part, 11-fixed sleeve, 12-fixed plate;

2-locking part, 21-locking clip, 22-rotating shaft, 23-torsion spring and 24-locking body;

3-rotating sleeve, 31-closing plate, 32-rotating flange, 321-positioning hole, 322-positioning pin, 33-reset spring, 34-shaft hole and 35-limiting hole;

4-clutch piece, 41-limit structure, 42-clutch rod, 421-clutch end, 422-driving end, 423-baffle;

5-a transmission shaft;

6-connecting rod;

7-slide, 71-guide structure;

8-a stay wire.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 8, fig. 1 is a schematic structural diagram of an embodiment of an electric slide rail, fig. 2 is an exploded view of a slide rail assembly and a connection structure of a clutch mechanism provided in the present invention, fig. 3 is a schematic structural diagram of an embodiment of a clutch mechanism provided in the present invention, fig. 4 is a sectional view of fig. 3 in a-a direction, fig. 5 is a sectional view of fig. 3 in a B-B direction, fig. 6 is a view of fig. 3 in a C-C direction, fig. 7 is a right side view of fig. 3, and fig. 8 is an exploded view of fig. 3.

The embodiment of the utility model provides an electronic slide rail's clutching mechanism, this electronic slide rail is used for the regulation of the inside seat of vehicle, as shown in fig. 1, vehicle seat's electronic slide rail includes motor 200 and two slide rail assemblies 100, wherein, two slide rail assemblies 100 symmetry are located the both sides of motor 200, it is specific, as shown in fig. 2, this slide rail assembly 100 includes outer slide rail 20, interior slide rail 30, drive mechanism and drive arrangement 10, wherein, drive arrangement 10 includes clutching mechanism and sticking department 2, clutching mechanism includes fixed part 1, rotatory sleeve 3 (being drive portion) and clutch 4, fixed part 1 is fixed with the seat basin of seat and interior slide rail 30 respectively, drive mechanism includes first driving medium and the second driving medium of mutual adaptation, first driving medium is fixed with outer slide rail 20, sticking department 2 is used for locking interior slide rail 30 and second driving medium; the clutch member 4 can act between the drive portion and the second transmission member to engage or disengage the drive portion and the second transmission member.

Specifically, the fixing portion 1 is fixed to the bracket 300 of the seat, the fixing portion 1 is fixed to the inner slide rail 30 through a fixing bolt, the locking portion 2 is used for locking the inner slide rail 30 and the second transmission member, when the locking portion 2 is in a locked state and the driving portion is matched with (power-engaged with) the second transmission member, the electric slide rail is in a normal state, and when the motor 200 drives the driving portion to rotate, the driving portion can act on the second transmission member and drive the inner slide rail 30 to slide relative to the outer slide rail 20 through the second transmission member. That is, the seat is driven to slide forward or backward by the motor 200, the sliding speed at this time may be determined according to the rotation speed of the motor 200, etc., and when the locking portion 2 is in the unlocked state and the clutch 4 is disengaged from the second transmission member (power is cut off), the inner rail 30 and the driving device 10 are completely disengaged from the outer rail 20 and the transmission mechanism, so that the forward and backward movement of the inner rail 30 and the driving device 10 is not restricted at all, that is, the forward and backward sliding of the seat is not restricted, at this time, the forward and backward position of the seat may be rapidly adjusted by pushing the seat forward or backward.

That is, when the seat needs to be adjusted forward or backward quickly, the locking part 2 is unlocked, the clutch part 4 is disengaged from the second transmission part at the same time, and then the seat is pushed to be adjusted to a proper position, when the seat position does not need to be adjusted quickly after a passenger gets on or off the vehicle, the seat is moved, the locking part 2 is locked with the inner slide rail 30 and the second transmission part again, the closing part 4 is matched with the second transmission part, the normal state of the electric slide rail can be recovered, and the adjustment of the front and back positions of the seat is realized through the driving of the motor 200.

Through the clutching mechanism that this embodiment provided for this electronic slide rail has the function of quick adjustment seat front and back position on current electronic slide rail's basis, and it can be under special circumstances, like in the vehicle that has seven middle-row seats and the front seat of single door, can be through the front and back position of quick adjustment seat, and the back passenger's of being convenient for gets on the bus and gets off the bus to satisfy passenger's demand.

In the above embodiment, the driving portion includes the rotating sleeve 3, and the clutch member 4 includes the disengaging end 421 and the driving end 422, wherein the disengaging end 421 of the clutch member 4 can pass through the rotating sleeve 3 and can move along the axial direction of the rotating sleeve 3 to engage or disengage with the second transmission member. When clutch 4 and second driving medium are in the cooperation state under, the rotation of rotatory sleeve 3 can drive the second driving medium through clutch 4 and rotate, and when clutch 4 and second driving medium were in the state that breaks away from, the rotation of rotatory sleeve 3 can not drive the second driving medium and rotate. Specifically, the engaging end 421 can be engaged with or disengaged from the second transmission member by pushing or pulling the driving end 422.

Of course, in this embodiment, the structures of the clutch member 4 and the driving portion are not limited, if the driving portion can be set to be a shaft structure, a first gear is disposed at one end of the driving portion facing the inner slide rail 30 and the outer slide rail 20, a second gear is disposed on the second transmission member, a third gear is disposed on the clutch member 4, and when the third gear of the clutch member 4 is simultaneously engaged with the first gear and the second gear (the clutch member 4 is engaged with the second transmission member), the rotation of the driving portion can drive the rotation of the second transmission member. And set up the drive division into rotatory sleeve 3, clutch 4 can follow this rotatory sleeve 3 axial displacement and cooperate with the second driving medium to realize that the pivoted scheme that rotatory sleeve 3's rotation can drive the second driving medium can simplify overall structure, need not to add support and motion path to this clutch 4, make overall structure simpler, occupation space is less, is convenient for arrange.

In the above embodiment, one end of the rotating sleeve 3 is fixedly provided with the sealing plate 31, the other end is provided with the rotating flange 32, the sealing plate 31 and the rotating flange 32 are respectively provided with the limiting holes 35 matched with the clutch piece 4, the clutch end 421 of the clutch piece 4 can sequentially pass through the limiting holes 35 of the sealing plate 31 and the rotating flange 32 and be matched with the second transmission member, the clutch end 421 of the clutch piece 4 can move in the rotating sleeve 3 along the axial direction of the rotating sleeve 3, and the driving end 422 of the clutch piece 4 is located outside the sealing plate 31, that is, outside the rotating sleeve 3. Wherein, the spacing hole 35 of shrouding 31 and rotatory flange 32 can fix a position clutch 4, avoids it to produce the condition of crooked or skew along with the in-process of rotatory sleeve 3 internal rotation to enough guarantee that separation end 421 can cooperate with the second driving medium. The outer wall of clutch 4 is equipped with limit structure 41, and is equipped with reset spring 33 between limit structure 41 and closing plate 31.

When the seat needs to be moved quickly, the clutch member 4 is moved to the side far away from the second transmission member along the axial direction to the clutch end 421 to be separated from the second transmission member through the action of external force, in the process, the limiting structure 41 is moved to one side of the sealing plate 31 to enable the return spring 33 to be compressed, and when the action of external force on the driving end 422 of the clutch member 4 is removed, the return spring 33 in the compressed state pushes the clutch member 4 to move to one side of the second transmission member through the limiting structure 41 until the clutch end 421 is matched with the second transmission member. The setting of return spring 33 makes after the seat quick adjustment, need not manual operation can realize clutch 4 and second driving medium cooperation fast. Specifically, the limiting structure 41 is not limited, and if it is configured as a step structure, the return spring 33 abuts against the step surface, or it is configured as a clip member disposed on the outer wall of the clutch member 4, which is not limited herein. The diameter of the limiting hole 35 of the closing plate 31 and the rotating flange 32 may be the same or different, and may be specifically set according to the structure of the clutch member 4, but the limiting holes 35 of the closing plate 31 and the rotating flange 32 need to be in one-to-one correspondence and coaxial.

In the above embodiment, the clutch member 4 includes four clutch levers 42, the second transmission member is provided with strip-shaped connection blocks 401, the four clutch levers 42 are uniformly arranged along the circumferential direction, and the distance between two adjacent clutch levers 42 is greater than the width of the strip-shaped connection blocks 401; the outer walls of the four clutch levers 42 are respectively sleeved with the return springs 33. Correspondingly, the closing plate 31 and the rotating flange 32 are respectively provided with four limiting holes 35 along the circumferential direction, and the aperture of the limiting hole 35 of the closing plate 31 is smaller than that of the return spring 33.

Of course, in this embodiment, the clutch member 4 may also be provided with other numbers of clutch rods 42, for example, when the number of the clutch rods 42 is one, the clutch end 421 of the clutch rod 42 is provided with a clamping groove adapted to the strip-shaped connecting block 401, and the engagement and disengagement of the clutch member 4 and the second transmission member are realized by the engagement and disengagement of the clamping groove and the strip-shaped connecting block 401; when the number of the clutch levers 42 is two, the distance between the clutch ends 421 of the two clutch levers 42 is greater than the width of the strip-shaped connecting block 401, so that when the clutch ends 421 of the two clutch levers 42 are respectively located at two sides of the strip-shaped connecting block 401, the rotating sleeve 3 drives the two clutch levers 42 to rotate, and then the second transmission member can be driven to rotate; when the number of the clutch levers 42 is three or more, the distance between two adjacent clutch levers 42 is larger than the width of the strip-shaped connecting block 401.

When the number of the clutch levers 42 is four, two clutch levers 42 are respectively positioned at both sides of the bar-shaped connection block 401 when the clutch end 421 of the clutch member 4 is initially engaged with the bar-shaped connection block 401, the other two clutch levers 42 may be respectively located on both sides of the bar-shaped connecting block 401 or may abut against the bar-shaped connecting block 401 (compress the return spring 33 in the abutting state), when the rotary sleeve 3 drives each clutch rod 42 to rotate, the clutch rods 42 rotate relative to the strip-shaped connecting block 401, and since two clutch rods 42 can drive the second transmission piece to rotate, at this time, under the action of the return spring 33, the two clutch levers 42 originally abutted against the strip-shaped connecting block 401 are rotated to be positioned at two sides of the strip-shaped connecting block 401, thereby two clutch rods 42 are respectively arranged on two sides of the bar-shaped connecting block 401, and the matching of the second transmission piece and the clutch piece 4 is more stable. Compared with the scheme of three or less clutch rods 42, the scheme of arranging the clutch part 4 as four clutch rods 42 can ensure that at least one clutch rod 42 is respectively arranged on two sides of the bar-shaped connecting block 401 when the clutch part 4 is initially matched with the bar-shaped connecting block 401, and compared with the scheme of five or more clutch rods 42, the overall structure can be simplified, and the occupied space can be reduced.

In the above embodiment, the clutch mechanism may further include a transmission shaft 5, one end of the transmission shaft 5 is used for connecting with the motor 200, and the other end passes through the space enclosed by the four clutch levers 42 and is coaxially transmitted with the rotary sleeve 3. That is, one end of the rotating sleeve 3 away from the second transmission member is provided with a shaft hole 34 (as shown in fig. 7) capable of coaxially transmitting with the transmission shaft 5, and the transmission shaft 5 is connected between the motor 200 and the shaft hole 34 and can drive the rotating sleeve 3 to rotate under the driving of the motor 200. So set up, can realize the coaxial rotation of transmission shaft 5 and clutch 4, simultaneously, the two mutually noninterfere.

In the above embodiment, the driving portion is further provided with a positioning pin 322, meanwhile, the cylinder wall of the rotating sleeve 3 and the side wall of the rotating flange 32 are respectively and correspondingly provided with a positioning hole 321, the positioning hole 321 is matched with the positioning pin 322, the clutch end 421 of the clutch piece 4 penetrates into the rotating sleeve 3 from one side of the sealing plate 31, the driving end 422 is located at the outer side of the sealing plate 31, after the return spring 33 is installed in the limiting sleeve from one side of the rotating sleeve 3 toward the rotating flange 32, one end of the return spring 33 toward the rotating flange 32 is fixed to the limiting structure 41 of the clutch piece 4, the rotating flange 32 is installed again, and is fixed by the positioning pin 322, the positioning pin 322 is arranged to enable the rotating flange 32 and the rotating sleeve 3 to rotate synchronously, and drive each clutch rod 42 to rotate synchronously, so as to accurately control.

In the above embodiment, the fixing portion 1 includes the fixing sleeve 11, the rotating sleeve 3 is sleeved in the fixing sleeve 11 and is rotatable relative to the fixing sleeve 11, and the lubricating grease is further applied between the rotating sleeve 3 and the fixing sleeve 11. This fixed sleeve 11 is used for providing radial support to the rotating sleeve 3 for rotating sleeve 3 can be steadily scribbled lubricating grease in fixed sleeve 11 internal rotation between the two, guarantees that rotating sleeve 3 can slide smoothly and reduce frictional wear, increase of service life.

The first transmission member may be a screw rod 50, the second transmission member may be a gear box 40 adapted to the screw rod 50, and when the clutch member 4 is in power engagement with the gear box 40, the rotation of the driving portion can drive the gear box 40 to move along the length direction of the screw rod 50. Specifically, a front support 501 is arranged at the front end of the screw rod 50, a rear support 502 is arranged at the rear end of the screw rod, and the front support 501 and the rear support 502 are respectively fixed with the outer slide rail 20. In particular, the engagement between the gear box 40 and the lead screw 50 is well known in the art, and the internal structure of the gear box 40 will not be described herein for brevity.

Or, in this embodiment, can also set up first driving medium into the rack, the second driving medium sets up into the structure of gear, and gear box 40 and lead screw 50's cooperation stability is better, and intensity is higher, and the guarantee seat can slide steadily, can ensure this electric slide rail's life simultaneously. In the following, the first transmission member is a lead screw 50, and the second transmission member is a gear box 40.

In the above embodiment, the locking portion 2 includes the locking clip 21 and the rotating shaft 22, the gear housing 40 is provided with a locking hole or a locking groove (both hole structure and groove structure) adapted to the locking clip 21, the rotating shaft 22 is fixed to the fixing portion 1, and the locking clip 21 can rotate around the rotating shaft 22 to pass through the inner slide rail 30 and engage with or disengage from the locking hole or the locking groove of the gear housing 40. That is, the inner rail 30 is provided with a through hole through which the latch 21 can pass and be engaged with a latch hole or a latch groove of the gear housing 40. When the latch 21 is engaged with the locking hole or the recess of the gear housing 40, the locking portion 2 is in a locked state and the inner rail 30 and the gear housing 40 are fixed, and when the latch 21 is disengaged from the locking hole or the recess of the gear housing 40, the locking portion 2 is in an unlocked state and the inner rail 30 and the gear housing 40 are disengaged.

Specifically, fixed part 1 is equipped with fixed plate 12, and this fixed plate 12 is fixed with fixed sleeve 11 to fixed plate 12 and lock card 21 correspond and are equipped with the mounting hole, and pivot 22 is the bolt, and the bolt passes through fixed plate 12 and lock card 21's mounting hole after fixed through the nut, can realize the lock card 21 and revolve the pivoted condition of pivot 22, simple structure and the dismouting operation of being convenient for.

Or, in this embodiment, the lock catch 21 may be separately provided, when the lock portion 2 needs to be unlocked to separate the inner slide rail 30 from the gear box 40, a passenger may directly act on the lock catch 21 to separate the lock catch from the lock hole or the lock groove, and after the position adjustment is completed, the lock catch 21 may pass through the inner slide rail 30 again and be engaged with the lock hole or the lock groove of the gear box 40. The rotation shaft 22 is convenient for the locking clip 21 to correspond to the through hole of the inner sliding rail 30, meanwhile, the locking clip 21 can be prevented from being lost after being taken down independently by rotating around the rotation shaft 22, and the operation is convenient.

In the above embodiment, the locking portion 2 further includes a torsion spring 23, the torsion spring 23 is sleeved outside the rotating shaft 22, and when the locking clip 21 is in a state of being disengaged from the locking hole or the locking groove, the torsion spring 23 can act on the locking clip 21 to rotate the locking clip 21 around the rotating shaft 22 to one side of the gear box 40, so that the locking clip 21 is matched with the locking hole or the locking groove to achieve locking. The arrangement of the pressure spring facilitates the locking state without manually operating the locking clamp 21 when the locking part 2 is in the unlocking state, and simplifies the manual operation.

In the above embodiment, the side of the gear box 40 facing the inner slide rail 30 is further provided with a guide surface, and the locking clip 21 can move to the locking hole or the locking groove along the guide surface, specifically, when the electric slide rail is adjusted to the normal state, the locking portion 2 needs to be locked again, at this time, the locking clip 21 rotates around the rotating shaft 22 under the action of the torsion spring 23 and passes through the through hole of the inner slide rail 30 to abut against the guide surface of the upper surface of the gear box 40 (where, the upper surface refers to the surface facing the side of the inner slide rail 30), at this time, the seat is moved continuously, so that the locking clip 21 can move continuously along the guide surface until the locking clip cooperates with the locking hole or the locking groove to achieve locking. The arrangement of the guide surface is convenient for accurately controlling the locking of the locking part 2, and the situation that the locking cannot be realized due to the deviation between the lock clip 21 and the lock hole or the lock groove is avoided. Specifically, the bottom of the gear box 40 is provided with a fixing bracket 402, the top end of the gear box is further fixedly provided with a cover plate 403, the upper surface of the cover plate 403 is provided with the above-mentioned guide surface, and the fixing bracket 402 and the cover plate 403 are welded and fixed to form a fixed support of the gear box 40.

In the above embodiment, the locking part 2 further comprises a lock body 24, the lock body 24 is fixedly arranged between the slide rail and the fixing part 1, correspondingly, the lock body 24 is provided with a through hole corresponding to the through hole of the inner slide rail 30, and the lock clip 21 can pass through the through hole of the lock body 24 and the through hole of the inner slide rail 30 and is matched with the lock hole or the lock groove of the gear box 40. Specifically, the lock body 24 and the inner slide rail 30 are welded together to form a whole, and as a fixing support body of the inner slide rail 30, the lock body 24 can increase the strength of the joint between the inner slide rail 30 and the fixing portion 1 and the joint between the inner slide rail 30 and the lock clip 21, thereby avoiding damage to the inner slide rail 30 due to the thinner side wall of the inner slide rail 30 in the using process, and further ensuring the service life of the inner slide rail 30.

In the above embodiment, the clutch mechanism further includes a sliding part 7 and a connecting rod 6, wherein the sliding part 7 is located between the driving end 422 of the clutch 4 and the fixing part 1, the sliding part 7 can act on the driving end 422 and drive the clutch 4 to move so as to disengage from the gear, two ends of the connecting rod 6 are respectively hinged to the sliding part 7 and the locking clip 21, when the passenger needs to move the seat back and forth quickly, the sliding part 7 can move to a side away from the gear box 40 by operating the sliding part 7, the sliding part 7 can act on the driving end 422 and drive the clutch 4 to move so as to disengage the clutch end 421 from the gear, meanwhile, when the sliding part 7 moves to a side away from the gear box 40, the connecting rod 6 can be pulled so that the connecting rod 6 moves to a side away from the gear box 40, and when the connecting rod 6 moves to a side away from the gear box 40, that is, the locking part 2 can be unlocked by operating the slider 7 while the clutch end 421 of the clutch member 4 is disengaged from the gear, so that the inner slide rail 30 and the gear case 40 are disengaged, and the operation is convenient.

When the seat does not need to be moved quickly, the action on the sliding part 7 is removed, at this time, due to the action of the torsion spring 23, the lock clip 21 can rotate around the rotating shaft 22 to be matched with the lock hole or the lock groove of the gear box 40, namely, the locking part 2 returns to the locking state, the rotation of the lock clip 21 can drive the sliding part 7 to move towards one side of the gear box 40 through the connecting rod 6, so that the action on the driving end 422 of the clutch part 4 is removed, and meanwhile, the return spring 33 in the compression state can act on the limiting structure 41 and drive the clutch part 4 to move towards one side of the gear box 40 until the clutch end 421 is matched with the gear. The arrangement of the slider 7 and the link 6 can simplify the operation of the seat when the seat is moved quickly, and optimize the user experience.

Specifically, the specific structure of the sliding member 7 is not limited as long as it can act on the driving end 422 of the clutch member 4 to drive the clutch member 4 to move in the direction away from the gear box 40, as shown in fig. 3 to 8, the clutch end 421 of the clutch member 4 penetrates through the sliding member 7, and the driving end 422 of the clutch member 4 is provided with a baffle 423, and the baffle 423 can abut against the end surface of the sliding member 7, so that when the sliding member 7 moves in the direction away from the gear box 40, the baffle 423 can drive the clutch member 4 to move. When the clutch member 4 has a structure of four clutch levers 42, the driving end 422 of each clutch lever 42 is provided with a stopper 423, respectively, so as to ensure that the driving end 422 of each clutch lever 42 is located on the side of the sliding member 7 away from the gear case 40.

In the above embodiment, the slider 7 is further provided with the guide structure 71, and the slider 7 is movable in the axial direction of the driving portion (the axial direction of the rotating sleeve 3) by the guide structure 71. Specifically, the structure of the guide structure 71 is not limited, for example, in this embodiment, the outer wall of the fixed sleeve 11 is parallel to the axial direction of the rotating sleeve 3, the guide structure 71 is provided with a guide groove adapted to the outer wall of the fixed sleeve 11, and when the sliding member 7 slides, the guide groove abuts against the outer wall of the fixed sleeve 11, so that the sliding member 7 can only move in the axial direction of the rotating sleeve 3, thereby ensuring the movement track of the clutch member 4 and avoiding the situation that the offset cannot be matched with the gear; alternatively, the guide structure 71 may be cylindrical and externally fitted to the fixed sleeve 11. Of course, in this embodiment, the guiding of the sliding member 7 can also be realized by a guiding rod and a guiding hole, wherein the guiding rod and the guiding hole are both arranged in parallel with the axis of the rotating sleeve 3, and one of the guiding rod and the guiding hole is fixedly arranged on the fixing portion 1, and the other one is arranged on the sliding member 7 to form the above-mentioned guiding structure 71.

In the above embodiment, the driving device 10 further comprises a pulling wire 8, the pulling wire 8 is fixed with the sliding member 7, that is, the passenger can separate the clutch member 4 from the gear and unlock the locking portion 2 by pulling the pulling wire 8, and the pulling wire 8 is provided to facilitate manual operation.

In addition, in the present embodiment, the clutch mechanism may further include a tension spring (not shown in the drawings), which is connected between the sliding member 7 and the fixing portion 1, and the tension spring is configured to pull the sliding member 7 toward one side of the fixing portion 1, so that the sliding member 7 can abut against the fixing portion 1 and be separated from the driving end 422 of the clutch member 4 without an external force, and the driving end 422 is prevented from contacting with the sliding member 7 during rotation to generate friction. Of course, in this embodiment, the position of the slider 7 can be displayed by the action of the connecting rod 6, and the position of the slider 7 can be assisted by the tension spring, so that the slider can be disengaged from the clutch member 4.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. The utility model provides an electronic slide rail's clutching mechanism, electronic slide rail includes motor (200) and two slide rail assemblies (100), each slide rail assembly (100) all include outer slide rail (20), interior slide rail (30) and drive mechanism, its characterized in that, drive mechanism includes first driving medium and the second driving medium that the transmission is connected, first driving medium with outer slide rail (20) are fixed, clutching mechanism includes:

a fixing part (1) fixed to the seat and the inner slide rail (30), respectively;

the driving part is in transmission connection with the motor (200) and can rotate under the driving of the motor (200);

the clutch piece (4) is connected to the driving part in a sliding mode, matched with or separated from the second transmission piece and can rotate synchronously with the driving part;

under the matching state, the clutch piece (4) is in transmission connection with the second transmission piece, and the second transmission piece is matched with the first transmission piece and can drive the inner slide rail (30) to slide relative to the outer slide rail (20).

2. The clutch mechanism of the electric slide rail according to claim 1, wherein the driving part comprises a rotating sleeve (3), and the clutch member (4) has a clutch end (421) capable of passing through the rotating sleeve (3) and sliding along the axial direction of the rotating sleeve (3).

3. The clutch mechanism of the electric slide rail according to claim 2, wherein one end of the rotating sleeve (3) is fixedly provided with a sealing plate (31), the other end is provided with a rotating flange (32), the sealing plate (31) and the rotating flange (32) are respectively provided with a limiting hole (35) matched with the clutch member (4), a clutch end (421) of the clutch member (4) can sequentially pass through the limiting holes (35) of the sealing plate (31) and the rotating flange (32) and is matched with the second transmission member, and a driving end (422) of the clutch member (4) is located outside the rotating sleeve (3);

the outer wall of clutch spare (4) still is equipped with limit structure (41), just limit structure (41) with still be equipped with reset spring (33) between shrouding (31).

4. The clutch mechanism of the electric slide rail according to claim 3, wherein the clutch member (4) comprises four clutch rods (42), the second transmission member is provided with a strip-shaped connecting block (401), the four clutch rods (42) are uniformly arranged along the circumferential direction, and the outer walls of the four clutch rods (42) are respectively sleeved with the return spring (33).

5. The clutch mechanism of the electric slide rail according to claim 4, wherein the clutch mechanism (10) further comprises a transmission shaft (5), one end of the transmission shaft (5) is in transmission connection with a rotating shaft of the motor (200), and the other end of the transmission shaft is inserted into a space enclosed by the four clutch rods (42) and is in coaxial transmission with the rotating sleeve (3).

6. The clutch mechanism of the electric slide rail according to any one of claims 3 to 5, wherein the driving part is further provided with a positioning pin (322), the cylinder wall of the rotating sleeve (3) and the side wall of the rotating flange (32) are respectively provided with a positioning hole (321) correspondingly, and the positioning holes (321) are matched with the positioning pin (322).

7. The clutch mechanism of the electric slide rail according to any one of claims 2 to 5, wherein the fixed part (1) comprises a fixed sleeve (11), the rotating sleeve (3) is sleeved in the fixed sleeve (11) and can rotate relative to the fixed sleeve (11), and lubricating grease is coated between the rotating sleeve (3) and the fixed sleeve (11).

8. Clutch mechanism of an electric slide according to any of claims 3 to 5, further comprising a sliding element (7), wherein the sliding element (7) is located between the driving end (422) of the clutch element (4) and the fixed part (1), and wherein the sliding element (7) is capable of acting on the driving end (422) and at least capable of being used to drive the clutch element (4) to disengage from the second transmission element.

9. The clutch mechanism of the electric slide rail according to claim 8, wherein the sliding member (7) is further provided with a guide structure (71), and the sliding member (7) can move along the axial direction of the driving part under the action of the guide structure (71).

10. The clutch mechanism of the electric slide rail according to claim 8, further comprising a tension spring, wherein two ends of the tension spring are respectively fixed to the sliding member (7) and the fixing portion (1), and the sliding member (7) can be disengaged from the driving end (422) of the clutch member (4) under the action of the tension spring.

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