CN117755173A - A car electric seat back support structure and its installation method - Google Patents
A car electric seat back support structure and its installation method Download PDFInfo
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- CN117755173A CN117755173A CN202211138080.8A CN202211138080A CN117755173A CN 117755173 A CN117755173 A CN 117755173A CN 202211138080 A CN202211138080 A CN 202211138080A CN 117755173 A CN117755173 A CN 117755173A
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Abstract
The invention belongs to the technical field of automobile seats, and particularly relates to an automobile electric seat backrest supporting structure and an installation method thereof, wherein the automobile electric seat backrest supporting structure comprises a backrest frame, and the backrest frame adopts an inverted U-shaped structure frame; the two support frames are respectively and fixedly arranged at the bottoms of the two ends of the backrest frame; the two bottom support frames are symmetrically and rotatably connected to the outer side of the bottom of the backrest frame; the recoil frames are respectively assembled at the bottoms of the two bottom support frames. The invention can limit the relative rotation of the motor output end and the rotating rod after being broken, stop the relative rotation between the back frame and the bottom support frame in time, avoid the back injury to passengers when the seat is damaged, and simultaneously can lead the whole seat to be quickly far away from the steering wheel when the collision occurs, lead the passengers to be quickly far away from the collision area and reduce the injury degree of the passengers in car accidents.
Description
Technical Field
The invention belongs to the technical field of automobile seats, and particularly relates to an automobile electric seat backrest supporting structure and an installation method thereof.
Background
The electric seat is capable of adjusting the front and back positions, the upper and lower heights and the backrest angle of the seat through the control of the motor, and adjusting thigh support, waist support and the like in a luxurious manner, wherein the assembly of the motor and the like is arranged between the seat backrest and the seat base, and the assembly is used for realizing the work of adjusting the backrest to rotate.
Problems of the prior art:
when the vehicle is in collision in the running, if the collision dynamics is too big, the possibility that will have the fracture between the backrest structure of seat and the base structure, and when both take place to fracture, under the effect of inertia, the backrest structure can continue to rotate forward and extrude the passenger, leads to the passenger unable to keep away from the collision area fast, and what is more, still probably causes the secondary injury to the passenger, aggravates the injured degree of passenger.
Disclosure of Invention
The invention aims to provide an automobile electric seat backrest supporting structure and an installation method thereof, which can timely limit the relative rotation of an output end of a motor and a rotating rod after breakage, timely stop the relative rotation between a back frame and a bottom support frame, avoid the reverse injury to passengers when the seat backrest is damaged, and simultaneously enable the whole seat to be rapidly far away from a steering wheel when the collision occurs, enable the passengers to be rapidly far away from a collision area and reduce the injury degree of the passengers in car accidents.
The technical scheme adopted by the invention is as follows:
the back support structure of the automobile electric seat comprises a back frame, wherein the back frame adopts an inverted U-shaped structure frame, rotating holes are formed in the bottoms of the two ends of the back frame, and slotted rod holes are formed in the two ends of the back frame and above the rotating holes;
the driving hack lever is fixedly arranged at the inner side of the bottom of the backrest frame, motor shells are fixedly arranged at two ends of the driving hack lever, and a motor is fixedly arranged in the motor shells;
the two support frames are respectively and fixedly arranged at the bottoms of the two ends of the backrest frame, the inner wall of each support frame penetrates through and is fixedly provided with a straight groove frame, the straight groove frame penetrates through the groove rod hole, the inside of each support frame penetrates through and is fixedly connected with a rotating rod, the rotating rod penetrates through the rotating hole and is fixedly connected with the backrest frame, and the output end of the motor is fixedly connected with one end of the rotating rod;
the inside of the straight groove frame is movably inserted with a built-in penetrating rod, two ends of the built-in penetrating rod are respectively and fixedly connected with a movable joint hack lever and an end frame, the bottom of the movable joint hack lever is movably inserted with an inserting rod, the bottom end of the inserting rod is fixedly connected with a rotating rod sleeve, the rotating rod sleeve is fixedly arranged on the outer surface of one end of the rotating rod, which is close to the motor, an arc guide hole and a straight guide hole which penetrate through the movable joint hack lever are formed in the surface of the movable joint hack lever, the straight guide hole is arranged on one side of the arc guide hole and is communicated with the arc guide hole, the outer surface of the output end of the motor is fixedly provided with an output sleeve, one side of the outer wall of the output sleeve is fixedly connected with a side rod, the side wall of the tail end of the side rod is fixedly connected with a guide pin, and the guide pin is movably inserted into the arc guide hole;
the bottom support framework is symmetrically and rotatably connected with the outer side of the bottom of the backrest framework, a through hole is formed in the top of one end of the bottom support framework, a transfer block is fixedly installed in the through hole, one end of the transfer block is located on the outer wall of the bottom support framework and fixedly connected with a saw gear, the other end of the transfer block is rotatably connected with the rotating rod, a tooth supporting block is arranged at the bottom end of the end support, and the tooth supporting block is movably meshed with the saw gear.
The built-in penetrating rod penetrates through the groove rod hole, a first spring is fixedly connected between the built-in penetrating rod and the inner wall of the groove rod hole, and the first spring is in a pressed state.
The two support frames are connected through back connection frames welded on the back, supporting plates are welded at two ends of the back connection frames, transverse frames are fixedly welded on the back of the backrest frame at equal intervals, and net frames are fixedly connected on the inner sides of the backrest frame at equal intervals.
The through hole and the rotating hole are positioned on the same axis, one end of the bottom support frame is provided with an arc-shaped guide groove at the bottom of the through hole, the arc-shaped guide groove is used for limiting the rotation range of the backrest frame, the outer wall of the bottom end of the support frame is fixedly connected with a guide pillar, and the guide pillar is movably inserted into the arc-shaped guide groove.
The two inner sides of the bottom support frames are fixedly connected with transverse beams and end cross beams, the transverse beams are fixedly connected with the bottom support frames through bolts screwed at two ends, the upper surfaces of the transverse beams are arranged to be paved with planes, and nail holes II penetrating through the transverse beams are formed in the surface equidistance of the transverse beams.
The bottom support framework is characterized in that a bottom frame plate is arranged on the inner wall of the bottom support framework and positioned on the upper surface of the laying plane, an extension plate is fixedly arranged on the inner wall of the bottom frame plate at equal intervals, a first nail hole corresponding to the first nail hole is formed in the tail end of the extension plate, and the bottom frame plate is fixedly connected with the transverse beam through a screw penetrating through the first nail hole and the second nail hole.
The two bottom support frame inner side bottoms fixedly connected with folded plates, just the folded plates are close to the one end of the arc-shaped guide groove and are provided with embedded grooves, the outer wall of one end of the bottom support frame is fixedly provided with a limit stop and a supporting block, and the supporting block is arranged above the limit stop.
The back flushing device comprises a folded plate, and is characterized by further comprising a back flushing frame, wherein the two back flushing frames are respectively assembled at the bottoms of the two bottom supporting frames, a propping frame used for propping one end of the folded plate is arranged at one end of each back flushing frame, a guide rod is fixedly connected to one side of each propping frame on the upper surface of each back flushing frame, an embedded block is embedded in each embedded groove, clamping grooves used for clamping the folded plate are formed in two ends of each embedded block, guide sleeves are fixedly connected to two ends of the lower surface of each embedded block, the guide sleeves are movably sleeved on the outer surfaces of the guide rods, one end of each guide sleeve is fixedly connected with a baffle ring, a spring II is connected between each baffle ring and each propping frame side wall, and the spring II is sleeved on the outer surfaces of the guide rods and is in a compressed state.
An outer pipe body is sleeved on the embedded movable sleeve of the outer surface of the middle part of the guide rod, the outer diameter of the outer pipe body is the same as the diameter of the guide rod, a spiral groove is formed in the outer surface of the outer pipe body, a supporting rod is connected to the lower surface of the embedded block in a rotating mode, and the tail end of the supporting rod is movably inserted into the spiral groove;
the recoil frame is far away from one end top rotation of supporting the frame is connected with the wind spring pipe, just wind spring pipe inside is provided with the wind spring, wind spring pipe outer wall fixedly connected with vaulting pole and gag lever post respectively, the end activity of vaulting pole supports into the limit stop with support the inboard of piece, just the wind spring is compressed state, the gag lever post is used for the restriction wind spring pipe's rotation angle.
The method for installing the back support structure of the automobile electric seat comprises the following specific steps of;
s1: after the back frame and the supporting framework are manufactured respectively, firstly assembling the back frame and the supporting framework, wherein the bottom end of the back frame is inserted into the supporting framework, the straight groove frame is aligned with the groove rod hole, then the rotating rod is inserted into the groove rod hole and the supporting framework, and the rotating rod is welded and fixed with the back frame and the supporting framework respectively;
s2: the output sleeve is fixedly sleeved on the outer surface of the output end of the motor, the rotating rod sleeve is fixedly sleeved on the outer surface of the rotating rod, the built-in penetrating rod penetrates through the straight groove frame, the movable connecting frame rod is welded at the other end of the built-in penetrating rod, the driving frame rod is installed, the output ends of the motors at the two ends of the driving frame rod are fixedly welded with the rotating rod, the inserting rod is inserted into the movable connecting frame rod, and the guide pin is inserted into the arc-shaped guide hole;
s3: assembling the bottom support frame and the backrest frame, firstly, rotationally connecting an upper adapter block at the tail end of a rotating rod, fixedly welding the adapter block in the through hole, finally, fixedly installing a saw gear at the tail end of the adapter block and positioned on the outer wall of the bottom support frame, after the assembly is completed, a certain distance exists between the tooth supporting block and the saw gear, the first spring is in a compressed state, and finally, assembling the other bottom support frame according to the same installation method;
s4: after the bottom support frames and the backrest frames are assembled, the two bottom support frames are fixedly connected through the transverse beam, and then an upper bottom frame plate is paved on the surface of the transverse beam and fixed through screws;
s5: and finally, assembling the bottom frame plate at the bottom of the bottom support frame, firstly moving the embedded block along the guide rod and extruding the second spring, propping the supporting rod against one end of the spiral groove under the elasticity of the second spring, as shown in the figure, propping the supporting rod against one end of the embedded block embedded in the embedded groove and propping the supporting frame against one end of the folded plate, at the moment, just rotating the supporting rod to enable the tail end of the supporting rod to prop between the limit stop and the supporting block, at the moment, enabling the coil spring inside the coil spring tube to be in an extrusion state, and assembling the bottom frame plate and the electric sliding for sliding of the seat after the bottom frame plate and the bottom support frame are assembled.
The invention has the technical effects that:
(1) When the vehicle head violently impacts other objects, the back frame has a forward rotating trend under the action of inertia, when the motor output end and the rotating rod are broken and relatively rotate, the guide pin can be separated from the inside of the arc guide hole, the movable joint hack lever is not blocked by the guide pin, the built-in penetrating rod is pushed by the spring, the tooth supporting block is quickly meshed with the saw gear, further, the relative rotation of the motor output end and the rotating rod after being broken is timely limited, and the relative rotation between the back frame and the bottom support frame is timely stopped, so that passengers are prevented from being damaged by the seat back, the whole seat is prevented from being seriously deformed when the vehicle accident impacts, and the passengers are further prevented from being secondarily damaged by the seat back in the vehicle accident.
(2) According to the invention, when the vehicle is impacted, the bottom support frame and the recoil frame simultaneously move relatively under the action of inertia, at the moment, the tail end of the supporting rod slides in the spiral groove, the outer pipe body and the guide rod simultaneously rotate relatively, when the supporting rod moves out along the inclined plane of the tail end of the spiral groove, the position of the embedded block is not limited by the supporting rod, and finally the bottom support frame is quickly rebounded under the action of the compression spring II; in addition, the tail end of the stay bar can be separated from the inner side of the limit stop and the abutting block, the fixed state between the bottom support framework and the recoil frame is relieved, finally, the bottom support framework, the back framework and the whole seat are quickly away from the steering wheel under the action of the second spring, so that passengers are quickly away from the impact point at the front end of the car, the collision force of the passengers in the car accident is further reduced, and the injury degree of the passengers in the car accident is reduced as much as possible.
(3) According to the invention, the combination of the bottom support framework, the transverse beam and the bottom frame plate replaces the traditional integrally fixed base structure, the assembly mode of the traditional back frame and the base frame is changed, the combination can be matched with the assembly work of the components such as the support framework and the like, the seat base assembled by the bottom support framework, the transverse beam and the bottom frame plate can be omitted, the assembly process of the traditional hoisting base structure is omitted, the installation mode of the back frame is simpler, and other hoisting equipment is not required to be input.
Drawings
FIG. 1 is a front perspective view provided by an embodiment of the present invention;
FIG. 2 is a rear bottom perspective view provided by an embodiment of the present invention;
FIG. 3 is an exploded view provided by an embodiment of the present invention;
FIG. 4 is an assembled view of a support structure and a base support structure according to an embodiment of the present invention;
FIG. 5 is an assembled exploded view of a support structure provided by an embodiment of the present invention;
fig. 6 is a driving structure view of the swing joint bar provided by the embodiment of the present invention;
FIG. 7 is an exploded view of a bottom bracket and a bottom frame plate according to an embodiment of the present invention;
FIG. 8 is an exploded view of an assembled bottom bracket and recoil bracket of an embodiment of the present invention;
FIG. 9 is an enlarged view of a portion of FIG. 8 at A;
fig. 10 is a partial enlarged view at B in fig. 8.
In the drawings, the list of components represented by the various numbers is as follows:
1. a backrest frame; 101. a transverse frame; 102. a network architecture; 103. a slotted rod hole; 104. a turning hole;
2. a support structure; 201. a back connecting frame; 202. a supporting plate; 203. a guide post; 204. a straight trough rack; 205. a rotating rod; 206. a transfer block; 207. saw gears; 208. an output sleeve; 209. a side bar; 210. a guide pin; 211. a rotating rod sleeve; 212. a rod; 213. a movable joint rack rod; 214. a penetrating rod is arranged in the inner part; 215. a first spring; 216. an end frame; 217. a tooth supporting block; 218. arc guide holes; 219. a straight guide hole;
3. a driving rack bar; 301. a motor housing; 302. a motor;
4. a bottom support structure; 401. a through hole; 402. an arc-shaped guide groove; 403. an embedding groove; 404. a folded plate; 405. a limit stop; 406. abutting blocks;
5. a bottom frame plate; 501. an extension plate; 502. a first nail hole;
6. a transverse beam; 601. paving a plane; 602. a second nail hole; 603. a bolt;
7. an end beam;
8. a recoil frame; 801. a support frame; 802. a guide rod; 803. an embedding block; 804. a clamping groove; 805. guide sleeve; 806. a baffle ring; 807. a second spring; 808. an outer tube body; 809. a spiral groove; 810. a supporting rod; 811. a coil spring tube; 812. a brace rod; 813. and a limit rod.
Detailed Description
The present invention will be specifically described with reference to examples below in order to make the objects and advantages of the present invention more apparent. It should be understood that the following text is intended to describe only one or more specific embodiments of the invention and does not limit the scope of the invention strictly as claimed.
As shown in fig. 1-3, an automobile electric seat backrest supporting structure comprises a backrest frame 1, wherein the backrest frame 1 adopts an inverted U-shaped structure frame, rotating holes 104 are formed in bottoms of two ends of the backrest frame 1, slotted rod holes 103 are formed in two ends of the backrest frame 1 and above the rotating holes 104, transverse frames 101 are fixedly welded on the back of the backrest frame 1 at equal intervals, and net frames 102 are fixedly connected to the inner sides of the backrest frame 1 at equal intervals.
According to the structure, the transverse framework 101 is used for increasing the strength of the whole structure of the backrest frame 1, and the net framework 102 is used for replacing the backrest of the all-steel body, so that the materials of the backrest frame are saved.
Referring to fig. 3, the driving hack lever 3 is fixedly disposed at the bottom inner side of the backrest frame 1, and both ends of the driving hack lever 3 are fixedly provided with motor housings 301, and the inside of the motor housings 301 is fixedly mounted with a motor 302.
Referring to fig. 3 and 4, the supporting frames 2 are respectively and fixedly installed at the bottoms of two ends of the backrest frame 1, the two supporting frames 2 are connected through a back connection frame 201 welded on the back, supporting plates 202 are welded at two ends of the surface of the back connection frame 201, the inner wall of the supporting frame 2 penetrates through and is fixedly provided with a straight groove frame 204, the straight groove frame 204 penetrates through a groove rod hole 103, a rotating rod 205 is fixedly connected to the inside of the supporting frame 2, and the rotating rod 205 penetrates through the rotating hole 104 and is fixedly connected with the backrest frame 1, and the output end of a motor 302 is fixedly connected with one end of the rotating rod 205.
According to the above structure, the output end of the starting motor 302 drives the rotating rod 205 to rotate, and the rotating rod 205 drives the backrest frame 1 and the supporting frame 2 to rotate together because the rotating rod 205 is fixedly connected with the backrest frame 1 and the supporting frame 2, thereby realizing the effect of changing the angle of the backrest frame 1.
Referring to fig. 5 and 6, the inside of the straight slot frame 204 is movably inserted with a built-in penetrating rod 214, the built-in penetrating rod 214 also penetrates through the slot rod hole 103, a first spring 215 is fixedly connected between the built-in penetrating rod 214 and the inner wall of the slot rod hole 103, the first spring 215 is in a pressed state, two ends of the built-in penetrating rod 214 are respectively fixedly connected with a movable joint frame rod 213 and an end frame 216, the bottom of the movable joint frame rod 213 is movably inserted with an inserting rod 212, the bottom of the inserting rod 212 is fixedly connected with a rotating rod sleeve 211, the rotating rod sleeve 211 is fixedly arranged on the outer surface of one end of the rotating rod 205, which is close to the motor 302, an arc guide hole 218 penetrating through the movable joint frame rod 213 and a straight guide hole 219 are formed on the surface of the movable joint frame rod 213, the straight guide hole 219 is arranged on one side of the arc guide hole 218 and communicated with the arc guide hole 218, an output sleeve 208 is fixedly arranged on the outer surface of the output end of the motor 302, a side of the output sleeve 208 is fixedly connected with a side rod 209, a guide pin 210 is fixedly connected with the end side of the tail end of the side rod 209, and the guide pin 210 is movably inserted into the arc guide hole 218.
Referring to fig. 3, 4 and 6, the bottom support frame 4, two bottom support frames 4 are symmetrically and rotatably connected to the outer side of the bottom of the backrest frame 1, a through hole 401 is formed in the top of one end of the bottom support frame 4, the through hole 401 and the rotating hole 104 are located on the same axis, a rotating block 206 is fixedly mounted in the through hole 401, one end of the rotating block 206 is fixedly connected with a saw gear 207 on the outer wall of the bottom support frame 4, the other end of the rotating block 206 is rotatably connected with a rotating rod 205, a tooth abutting block 217 is fixedly arranged at the bottom end of the end frame 216, the tooth abutting block 217 is movably meshed with the saw gear 207, an arc guide groove 402 is formed in one end of the bottom support frame 4 and located at the bottom of the through hole 401, the arc guide groove 402 is used for limiting the rotation range of the backrest frame 1, a guide pillar 203 is fixedly connected to the outer wall of the bottom end of the support frame 2, and the guide pillar 203 is movably inserted into the arc guide groove 402.
According to the above structure, when the output end of the motor 302 and the rotating rod 205 are relatively rotated, the output sleeve 208 and the side rod 209 are relatively rotated with the movable joint frame rod 213, the guide pin 210 is separated from the inside of the arc guide hole 218, the built-in penetrating rod 214 and the movable joint frame rod 213 are not blocked by the guide pin 210 and are pushed under the action of the first compression spring 215, then the inserting rod 212 is quickly retracted into the movable joint frame rod 213, the tooth abutting block 217 is quickly meshed with the saw gear 207, the guide pin 210 is quickly moved in the straight guide hole 219, and finally, the relative rotation between the output end of the motor 302 and the rotating rod 205 after fracture can be timely limited, and the relative rotation between the backrest frame 1 and the movable joint frame rod 4 is timely stopped, so that passengers are reversely injured when the seat is prevented from being damaged.
Referring to fig. 7, the inner sides of the two bottom supporting frames 4 are fixedly connected with a transverse beam 6 and an end transverse beam 7, the transverse beam 6 is fixedly connected with the bottom supporting frames 4 through bolts 603 screwed at two ends, the upper surface of the transverse beam 6 is provided with a laying plane 601, nail holes two 602 penetrating through the transverse beam 6 are formed in the surface of the transverse beam 6 at equal intervals, a bottom frame plate 5 is arranged on the inner wall of the bottom supporting frames 4 and positioned on the upper surface of the laying plane 601, an extension plate 501 is fixedly arranged on the inner wall of the bottom frame plate 5 at equal intervals, nail holes one 502 corresponding to the nail holes two 602 are formed in the tail end of the extension plate 501, and the bottom frame plate 5 and the transverse beam 6 are fixedly connected with the nail holes two 602 through bolts penetrating through the nail holes one 502.
According to the above structure, after the bottom support frames 4 and the backrest frame 1 are assembled, the two bottom support frames 4 are fixedly connected by the cross beam 6, and then the bottom frame plate 5 is laid on the surface of the cross beam 6 and is fixed by screws.
Referring to fig. 8 and 10, a folded plate 404 is fixedly connected to the bottom of the inner side of the two bottom supporting frames 4, an embedded groove 403 is formed at one end of the folded plate 404, which is close to the arc-shaped guide groove 402, a limit stop 405 and a supporting block 406 are fixedly arranged on the outer wall of one end of the bottom supporting frame 4, and the supporting block 406 is arranged above the limit stop 405.
Referring to fig. 8, the device further comprises a recoil frame 8, wherein the two recoil frames 8 are respectively assembled at the bottoms of the two bottom support frames 4, an abutting frame 801 for abutting against one end of the folded plate 404 is arranged at one end of the recoil frame 8, a guide rod 802 is fixedly connected to one side of the abutting frame 801 on the upper surface of the recoil frame 8, an embedded block 803 is embedded in the embedded groove 403, clamping grooves 804 for clamping the folded plate 404 are formed in two ends of the embedded block 803, guide sleeves 805 are fixedly connected to two ends of the lower surface of the embedded block 803, the guide sleeves 805 are movably sleeved on the outer surface of the guide rod 802, a baffle ring 806 is fixedly connected to one end of one guide sleeve 805, a second spring 807 is connected between the baffle ring 806 and the side wall of the abutting frame 801, and the second spring 807 is sleeved on the outer surface of the guide rod 802 and is in a compressed state.
Referring to fig. 9, an outer tube 808 is movably sleeved on the outer surface of the middle part of the guide rod 802, the outer diameter of the outer tube 808 is the same as the diameter of the guide rod 802, a spiral groove 809 is formed on the outer surface of the outer tube 808, a supporting rod 810 is rotatably connected to the lower surface of the embedded block 803, and the tail end of the supporting rod 810 is movably inserted into the spiral groove 809.
According to the above structure, when the bottom bracket 4 and the recoil bracket 8 move relatively, under the action of inertia, the bottom bracket 4 and the insert 803 slide forward along the direction of the guide bar 802 for a small distance, the end of the abutment 810 slides in the spiral groove 809, and simultaneously the outer body 808 rotates relatively with the guide bar 802, when the abutment 810 moves to the end of the spiral groove 809, the abutment 810 moves out of the spiral groove 809 along the inclined plane of the end of the spiral groove 809, and at this time, the position of the insert 803 on the surface of the guide bar 802 is not limited by the abutment 810, and the insert 803 and the bottom bracket 4 rebound rapidly under the action of the compression spring two 807, finally, the bottom bracket 4, the backrest frame 1 and the whole seat are kept away from the steering wheel rapidly.
Referring to fig. 8, a coil spring tube 811 is rotatably connected to a top portion of one end of the recoil frame 8 far from the abutment frame 801, and a coil spring is provided inside the coil spring tube 811, a stay 812 and a stopper rod 813 are fixedly connected to an outer wall of the coil spring tube 811, respectively, a distal end of the stay 812 is movably abutted against an inner side of the stopper 405 and the abutment 406, and the coil spring is in a compressed state, and the stopper rod 813 is used for limiting a rotation angle of the coil spring tube 811.
According to the above structure, in the process of sliding the bottom bracket 4 forward, the end of the stay 812 is separated from the inner sides of the limit stop 405 and the abutment 406, then the stay 812 rotates under the action of the coil spring in the coil spring tube 811, and the rotation angle of the coil spring tube 811 is just limited by the limit rod 813, so that the fixing state between the bottom bracket 4 and the recoil bracket 8 is released.
The working principle of the invention is as follows: after the seat frame is assembled, the output end of the motor 302 drives the rotating rod 205 to rotate, and the rotating rod 205 drives the backrest frame 1 and the supporting framework 2 to rotate together due to the fact that the rotating rod 205 is fixedly connected with the backrest frame 1 and the supporting framework 2, so that the effect of changing the angle of the backrest frame 1 is achieved, the work of electrically adjusting the angle of the backrest is achieved, in addition, in the adjusting process, the guide pillar 203 moves in the arc-shaped guide groove 402, and the arc-shaped guide groove 402 is used for limiting the rotating range of the backrest frame 1.
When the vehicle runs and the vehicle head is not braked and the vehicle head impacts other objects violently, under the action of inertia, personnel in the vehicle and the backrest frame 1 have a trend of continuously moving forwards, at the moment, the backrest frame 1 has a trend of rotating forwards, the backrest frame 1 and the bottom support frame 4 can rotate relatively, during the running, the output end of the motor 302 and the rotating rod 205 can rotate relatively due to overlarge impact force, at the moment, the output sleeve 208, the side rod 209 and the movable joint frame rod 213 can rotate relatively, during the running, the guide pin 210 can be separated from the inside of the arc guide hole 218, at the moment, the built-in penetrating rod 214, the movable joint frame rod 213 and the guide pin 210 can not be blocked, the plunger 212 is pushed under the action of the first compression spring 215, at this time, the plunger 212 is quickly retracted into the movable joint rack 213, the tooth supporting block 217 is quickly meshed with the saw gear 207, the guide pin 210 is quickly moved in the straight guide hole 219, at this time, the relative rotation between the output end of the motor 302 and the broken rotary rod 205 can be timely limited, and the relative rotation between the backrest frame 1 and the bottom support frame 4 can be timely stopped, so that passengers are prevented from being damaged by the backrest, the deflection of the backrest under the action of inertia is further prevented when car accident collision occurs, the deformation of the whole seat is further prevented, and the passengers are prevented from being damaged by the backrest in the car accident;
in the process that the headstock impacts other objects severely, under the action of inertia, the bottom support frame 4 and the recoil frame 8 move relatively at the same time, at the moment, under the action of inertia, the bottom support frame 4 and the embedded block 803 slide forwards for a small distance along the direction of the guide rod 802, the tail end of the supporting rod 810 slides in the spiral groove 809, meanwhile, the outer pipe 808 and the guide rod 802 rotate relatively at the same time, when the supporting rod 810 moves to the tail end of the spiral groove 809, the supporting rod 810 moves out of the spiral groove 809 along the inclined plane of the tail end of the spiral groove 809, at the moment, the position of the embedded block 803 on the surface of the guide rod 802 is not limited by the supporting rod 810 any more, and the bottom support frame 4 is rebounded rapidly under the action of the compression spring II 807; in addition, in the process that the bottom support frame 4 slides forwards, the tail end of the supporting rod 812 can be separated from the inner sides of the limit stop 405 and the supporting block 406, then under the action of a coil spring in the coil spring tube 811, the supporting rod 812 rotates, the rotation angle of the coil spring tube 811 is just limited by the limit rod 813, the fixed state between the bottom support frame 4 and the recoil frame 8 is further relieved, finally, the bottom support frame 4, together with the backrest frame 1 and the whole seat, is quickly separated from a steering wheel under the action of the spring II 807, so that a passenger is quickly separated from an impact point at the front end of the vehicle, the collision force of the passenger in the vehicle accident is further reduced, and the injury degree of the passenger in the vehicle accident is reduced as much as possible.
The method for installing the back support structure of the automobile electric seat comprises the following specific steps of;
s1: after the back frame 1 and the support frame 2 are manufactured respectively, the back frame 1 and the support frame 2 are assembled first, wherein the bottom end of the back frame 1 is inserted into the support frame 2, the straight slot frame 204 is aligned with the slot rod hole 103, then the rotating rod 205 is inserted into the slot rod hole 103 and the support frame 2, and the rotating rod 205 is welded and fixed with the back frame 1 and the support frame 2 respectively;
s2: then, fixedly sleeving the output sleeve 208 on the outer surface of the output end of the motor 302, fixedly sleeving the rotating rod sleeve 211 on the outer surface of the rotating rod 205, penetrating the built-in penetrating rod 214 through the straight groove frame 204, welding the movable connecting frame rod 213 at the other end of the built-in penetrating rod 214, installing the driving frame rod 3, fixedly welding the output ends of the motors 302 at the two ends of the driving frame rod 3 and the rotating rod 205, finally inserting the inserting rod 212 into the movable connecting frame rod 213, and inserting the guide pin 210 into the arc-shaped guide hole 218;
s3: the bottom support frame 4 and the backrest frame 1 are assembled, firstly, the tail end of the rotating rod 205 is rotationally connected with the upper adapter block 206, then the adapter block 206 is fixedly welded in the through hole 401, finally, the saw gear 207 is fixedly installed on the tail end of the adapter block 206 and positioned on the outer wall of the bottom support frame 4, after the assembly is completed, a certain distance exists between the tooth abutting block 217 and the saw gear 207, the first spring 215 is in a compressed state, and finally, the other bottom support frame 4 is assembled according to the same installation method;
s4: after the bottom support frames 4 and the backrest frame 1 are assembled, the two bottom support frames 4 are fixedly connected through the transverse beam 6, and then the upper bottom frame plate 5 is paved on the surface of the transverse beam 6 and fixed through screws;
s5: finally, the bottom frame plate 5 is assembled at the bottom of the bottom supporting frame 4, the embedded block 803 is moved along the guide rod 802 and the second spring 807 is pressed, the supporting rod 810 is supported and screwed to the inside of one end of the groove 809 under the elasticity of the second spring 807, as shown in fig. 9, then the supporting rod 810 is supported and embedded into the embedded block 803 and the supporting frame 801 is supported and fixed on one end of the folded plate 404, at this time, the supporting rod 812 can be just rotated to make the end of the supporting rod 812 support between the limit stop 405 and the supporting block 406, at this time, the coil spring in the coil spring tube 811 is in a pressed state, and after the bottom frame plate 5 and the bottom supporting frame 4 are assembled, the bottom frame plate 5 and the electric sliding for sliding of the seat are assembled.
The installation method changes the assembly mode of the traditional backrest frame 1 and the base frame, replaces the traditional integrally fixed base structure with the combination of the bottom support frame 4, the transverse beam 6 and the bottom frame plate 5, enables the combination to be matched with the assembly work of the components such as the support frame 2 and the like, and the seat base assembled by the bottom support frame 4, the transverse beam 6 and the bottom frame plate 5 can omit the assembly process of the traditional hoisting base structure, so that the installation mode of the backrest frame 1 is simpler, and other hoisting equipment is not required to be input.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211138080.8A CN117755173B (en) | 2022-09-19 | 2022-09-19 | A support structure for the backrest of an electric car seat and its installation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211138080.8A CN117755173B (en) | 2022-09-19 | 2022-09-19 | A support structure for the backrest of an electric car seat and its installation method |
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| CN117755173A true CN117755173A (en) | 2024-03-26 |
| CN117755173B CN117755173B (en) | 2026-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211138080.8A Active CN117755173B (en) | 2022-09-19 | 2022-09-19 | A support structure for the backrest of an electric car seat and its installation method |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4252341A (en) * | 1979-03-21 | 1981-02-24 | American Seating Company | Crash pad for vehicle seats |
| CN104648193A (en) * | 2013-11-20 | 2015-05-27 | 明门香港股份有限公司 | Seat cushioning mechanism and car safety seat |
| CN210060258U (en) * | 2019-05-30 | 2020-02-14 | 安徽省青阳县华瑞科技有限公司 | Welding tool for automobile seat framework |
-
2022
- 2022-09-19 CN CN202211138080.8A patent/CN117755173B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4252341A (en) * | 1979-03-21 | 1981-02-24 | American Seating Company | Crash pad for vehicle seats |
| CN104648193A (en) * | 2013-11-20 | 2015-05-27 | 明门香港股份有限公司 | Seat cushioning mechanism and car safety seat |
| CN210060258U (en) * | 2019-05-30 | 2020-02-14 | 安徽省青阳县华瑞科技有限公司 | Welding tool for automobile seat framework |
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| CN117755173B (en) | 2026-04-28 |
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