CN115352333A - Seat shock absorber of integrative valve mechanism - Google Patents

Seat shock absorber of integrative valve mechanism Download PDF

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Publication number
CN115352333A
CN115352333A CN202210805599.0A CN202210805599A CN115352333A CN 115352333 A CN115352333 A CN 115352333A CN 202210805599 A CN202210805599 A CN 202210805599A CN 115352333 A CN115352333 A CN 115352333A
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CN
China
Prior art keywords
block
shock absorber
integrated
adjusting block
fork arm
Prior art date
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Granted
Application number
CN202210805599.0A
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Chinese (zh)
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CN115352333B (en
Inventor
费超
李晓宇
程炼
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yanfeng International Seating Systems Co Ltd
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Yanfeng International Seating Systems Co Ltd
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Application filed by Yanfeng International Seating Systems Co Ltd filed Critical Yanfeng International Seating Systems Co Ltd
Priority to CN202210805599.0A priority Critical patent/CN115352333B/en
Publication of CN115352333A publication Critical patent/CN115352333A/en
Application granted granted Critical
Publication of CN115352333B publication Critical patent/CN115352333B/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/50—Seat suspension devices
    • B60N2/52—Seat suspension devices using fluid means
    • B60N2/525—Seat suspension devices using fluid means using gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/50—Seat suspension devices
    • B60N2/505—Adjustable suspension including height adjustment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/50—Seat suspension devices
    • B60N2/506—Seat guided by rods
    • B60N2/508—Scissors-like structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/50—Seat suspension devices
    • B60N2/52—Seat suspension devices using fluid means
    • B60N2/522—Seat suspension devices using fluid means characterised by dampening means

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)

Abstract

The invention discloses a seat shock absorber with an integrated valve mechanism, which is an integrated valve mechanism arranged on a fork arm, wherein the front end of the integrated valve mechanism is hinged at the front end of the fork arm, and the rear end of the integrated valve mechanism is hinged on a central hinge point of the fork arm; the integrated valve mechanism and the wire pulling mechanism are matched to control the air bag to charge and discharge, so that the height of the seat shock absorber can be adjusted in different gears, the air bag is controlled to be adaptive to absorb vibration generated in the running process under different height positions, and on one hand, the air inflow and the air outflow can be strictly controlled through the adjusting mechanism of the gears, so that the height can be accurately controlled by a user. And the height can be accurately adjusted during running, and the phenomenon that the height is too high or too low easily occurs in the benchmarking patent is avoided. On the other hand, through integrative valve mechanism, reduce the accumulative total tolerance that produces in the part design for cost reduction, the structure is lightweight, installs through the form of lock joint simultaneously, has still reduced man-hour and has promoted production efficiency.

Description

Seat shock absorber of integrative valve mechanism
Technical Field
The invention relates to the field of commercial vehicle seats, in particular to a seat shock absorber of an integrated valve mechanism.
Background
Traditional commercial car seat bumper shock absorber does not possess self-adaptation and increases the function, needs extra height-adjusting mechanism when using on the seat that needs the height-adjusting.
As the Chinese utility model patent publication number: CN214001435U discloses an air bag adjustable shock absorber for an automobile seat. Comprises a top frame, a bottom frame, an outer scissor frame, an inner scissor frame, an air bag, a damper and a control mechanism; the outer shear shank is rotatably connected with the inner shear shank, and two ends of the outer shear shank are respectively connected with the top frame and the bottom frame; two ends of the inner scissor frame are respectively connected with the top frame and the bottom frame; the air bag is connected with the bottom frame and the inner scissor frame; the damper is connected with the outer scissor frame and the inner scissor frame; the control mechanism comprises a valve, a rotating plate, a cam, a pull rope, a spring and a rotating shaft; the pull cable and the rotating shaft are both arranged on the inner scissor frame; the rotating plate is rotationally connected to the rotating shaft; the stay cable is matched with the rotating plate. The utility model discloses the shock attenuation is effectual, have the altitude mixture control function and can avoid the gasbag to fill the gassing excessive. However, the product does not have a gear adjusting function, the height of the product is adjusted completely by sensing of an operator, so that the starting and stopping of the air bag are controlled manually, and meanwhile, the product cannot realize the shock absorption function of instantaneous load change through the air bag.
Also as the Chinese invention patent publication number: CN102019864A discloses a vehicle seat damper combining a seat damper and a lifter. The deflector rod on the upper bracket drives the control valve fixing plate and the mechanical valve to move, and an air inlet and exhaust switch of the mechanical valve is controlled by the control plate, so that the function of controlling the air quantity in the air bag is achieved, and the seat is automatically balanced; the position of the control plate of the rotating plate is controlled by rotating the lifting screw rod, so that the height of the seat is adjusted. Compared with the prior art, the invention has the advantages of long service life, automatic balance, pneumatic adjustment of the height of the seat and suitability for different people. The driving lever, the lifting screw and the control valve in the product are installed in the shock absorber installation process in a one-to-one arrangement mode, and the driving lever and the lifting screw control valve can be installed only after various fixing plates are installed. After this set of installations, the tolerance stack-up will also become large. The front end of the lifting screw rod is large, one section leaks outside, the loading space requirement is higher, and the manual slide rail unlocking is interfered. When the height is adjusted, the body needs to be inclined forward, the lifting screw rod is rotated, the operation is uncomfortable, and the ergonomics is not met.
Disclosure of Invention
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a seat shock absorber of an integrated valve mechanism comprises a fork arm, a shock absorber frame, an air bag fixing support, a damper, an air bag, an air valve and a pull wire for controlling the air valve, wherein the shock absorber frame, the air bag fixing support, the damper, the air bag and the air valve are arranged on the fork arm,
the integrated valve mechanism is arranged on the fork arm, the front end of the integrated valve mechanism is hinged to the front end of the fork arm, and the rear end of the integrated valve mechanism is hinged to a central hinge point of the fork arm;
the integrated valve mechanism and the pull wire mechanism are matched to control the inflation and the deflation of the air bag, so that the height of the seat shock absorber is adjusted in a gear-shifting mode, and meanwhile, the air bag is controlled to absorb the vibration generated in the running process in a self-adaptive mode at different height positions.
In a preferred embodiment of the present invention, the method further comprises:
the fork arm consists of an inner fork arm bracket and an outer fork arm bracket;
the inner yoke support and the outer yoke support are hinged through a middle pipe, and therefore stress distribution on two sides of the yoke is balanced.
In a preferred embodiment of the present invention,
the airbag fixing support is arranged on the inner side fork arm support.
In a preferred embodiment of the present invention, both ends of the damper are respectively hinged to the airbag fixing bracket and the outer yoke bracket.
In a preferred embodiment of the invention, the damper is centrally located in the yoke.
In a preferred embodiment of the present invention, the integrated valve mechanism comprises: the device comprises an integrated bracket, a regulating block, a triggering block and an air valve;
the integrated valve mechanism is respectively hinged on the middle pipe and the outer fork arm bracket through the integrated bracket;
the adjusting block is also hinged to the middle pipe through the integrated support, and the rear end of the integrated support and the adjusting block can coaxially rotate around the middle pipe;
the trigger block is hinged on the integrated bracket, and the adjusting block is positioned on one side of the trigger block;
the air valve is fixed on the integrated bracket and is positioned on the other side of the trigger block;
the wire pulling mechanism controls the adjusting block to rotate, the adjusting block pushes the triggering block to synchronously rotate, so that the air valve is switched among inflation, deflation and closing states, and the seat shock absorber is controlled to work under the states of height adjustment, reduction and balanced shock absorption;
when the seat shock absorber is in a height-adjusting state, the wire-pulling mechanism controls the adjusting block to rotate anticlockwise when the adjusting block leaves an original balance position, the triggering block is pushed to rotate anticlockwise synchronously so as to press an air inlet valve on the air valve to enable the fork arm to rise under the pushing of the air bag, and the wire-pulling mechanism drives the adjusting block and the triggering block to gradually return in the rising process to finally complete the set gear height adjustment;
when the seat shock absorber is in a lowering state, the wire pulling mechanism controls the adjusting block to rotate clockwise away from an original balance position, the trigger block is pushed to rotate clockwise synchronously so as to extrude an air inlet valve on the air valve to enable the supporting force of the air bag on the fork arm to be reduced, the height of the fork arm is reduced, and the wire pulling mechanism drives the adjusting block and the trigger block to gradually return in the reducing process to finally complete the reduction of a set gear;
or:
when the seat shock absorber is in a height-adjusting state, the wire-pulling mechanism controls the adjusting block to rotate clockwise from an original balance position, the triggering block is pushed to rotate clockwise synchronously so as to extrude an air inlet valve on the air valve to enable the fork arm to rise under the pushing of the air bag, and the wire-pulling mechanism drives the adjusting block and the triggering block to gradually return in the rising process to finally complete the set gear height adjustment;
when the seat shock absorber is in a lowering state, the wire pulling mechanism controls the adjusting block to rotate anticlockwise when the adjusting block leaves an original balance position, the trigger block is pushed to rotate anticlockwise synchronously so as to press an air inlet valve on the air valve to enable the supporting force of the air bag on the fork arm to be reduced, the height of the fork arm is reduced, and the wire pulling mechanism drives the adjusting block and the trigger block to gradually return in a reducing process to finally complete the reduction of a set gear;
when the seat shock absorber is in a balanced shock absorption state, if the top load of the seat shock absorber is increased instantly, the fork arm is in a descending trend, the adjusting block leaves the original balance position and rotates under the control of the wire pulling mechanism, so that the seat shock absorber enters a height adjusting state instantly to offset the impact, and when the seat shock absorber is ultrahigh after the impact disappears, the wire pulling mechanism drives the adjusting block to rotate reversely, so that the height of the seat shock absorber is reduced, and the seat shock absorber returns to the original position, or vice versa.
In a preferred embodiment of the present invention,
the rear end of the integrated bracket is hinged to the middle pipe through a bracket bayonet;
the adjusting block is hinged to the outer wall of the support bayonet through the adjusting block bayonet, so that the adjusting block can rotate around the outer wall of the support bayonet;
the front end of the adjusting block is also provided with a first adjusting block touch point and a second adjusting block touch point, the front end of the trigger block is respectively provided with a first trigger block front contact and a second trigger block front contact, and the rear end of the trigger block is respectively provided with a first trigger block rear contact and a second trigger block rear contact;
when the adjusting block rotates anticlockwise under the control of the inhaul cable mechanism, the first touch point of the adjusting block pushes the first rear contact of the trigger block to enable the trigger block to rotate synchronously, so that the first front contact of the trigger block extrudes the air valve;
when the adjusting block rotates clockwise under the control of the inhaul cable mechanism, the second touch point of the adjusting block pushes the second rear contact of the trigger block to enable the trigger block to rotate synchronously, so that the second front contact of the trigger block extrudes the air valve.
In a preferred embodiment of the invention, the front end of the one-piece bracket is hinged to the transverse tube of the outer yoke bracket via an arc.
In a preferred embodiment of the present invention, the wire pulling mechanism includes: the pull wire fixing part is arranged on the pull wire fixing part;
one end of the spring is fixed on a hanging point of the adjusting block, and the other end of the spring is fixed on a transverse pipe of the outer fork arm support;
one end of the pull wire is also fixed on the hanging point;
the pull wire fixing piece is arranged on the air bag fixing support, and one end of the pull wire penetrates through the pull wire fixing piece to be connected with the hanging point, so that the acting force of the pull wire and the spring on the adjusting block is positioned on the same plane.
In a preferred embodiment of the present invention, the wire pulling mechanism further comprises: a handle and a handle base;
the handle base is arranged on the shock absorber frame;
the handle is hinged to the handle base, the other end of the pull wire is connected with the handle, and the extending length of the pull wire is changed by rotating the handle.
In a preferred embodiment of the present invention, a locking piece is further disposed in the handle, at least one locking groove is disposed on the handle base, and the locking piece rotates along with the handle and is clamped into the locking groove during rotation, so as to form an adjusting gear of the seat damper.
In a preferred embodiment of the present invention, the air valve is provided with an air inlet valve and an air outlet valve, and the first front contact of the trigger block and the second front contact of the trigger block respectively press the air inlet valve and the air outlet valve to realize air inlet lifting and air outlet lowering of the airbag.
In a preferred embodiment of the present invention, the integrated bracket further includes a fixing member, the fixing member is hinged to the middle tube together by matching a bayonet of the fixing member with the bayonet of the bracket, an outer surface of the bayonet of the fixing member is attached to the bayonet of the bracket, and the fixing member can rotate around the bayonet of the bracket.
In a preferred embodiment of the present invention, a fixing member locking tongue is further disposed on one side of the fixing member, and the fixing member locking tongue is locked to the airbag fixing bracket, so that the fixing member synchronously rotates in the ascending process of the middle tube, and the rear end of the integrated bracket is prevented from falling off from the middle tube.
In a preferred embodiment of the present invention,
the transverse pipe of the outer side fork arm support is also provided with a fork arm front fixing part;
the integrated bracket is clamped on the front fixing part of the fork arm through a bracket clamping tongue, so that the integrated bracket is prevented from laterally shaking;
the other end of the spring is fixed on the transverse pipe of the outer side fork arm support through the fork arm front fixing part.
The invention has the beneficial effects that:
on one hand, the seat shock absorber of the integrated valve mechanism provided by the invention can strictly control the air inflow and the air outflow through the gear adjusting mechanism, so that a person can accurately control the height. And the height can be accurately adjusted during running, and the position which is easily too high or too low in the benchmarking patent can not be generated. On the other hand, through integrative valve mechanism, reduce the accumulative total tolerance that produces in the part design, reduce part cost, make the product lightweight, install through the form of lock joint simultaneously, still reduced man-hour and promoted production efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
Fig. 1 is an overall schematic view of the shock absorber skeleton of the present invention.
Fig. 2 is a schematic view of the yoke structure of the present invention.
Fig. 3 is a top view of fig. 2 of the present invention.
Fig. 4 is an exploded view of the yoke of the present invention.
Fig. 5 is an exploded view of the yoke, upper shock absorber frame and lower shock absorber frame of the present invention.
Fig. 6 is a schematic view of the damper skeleton exterior rotary frame of the present invention.
Fig. 7 is an exploded view of the integrated valve mechanism of the present invention.
Fig. 8 is a schematic structural view of an integrated bracket, adjustment block and trigger block of the present invention.
Fig. 9 is a schematic view of the integrated bracket structure of the invention.
FIG. 10 is a schematic view of an integrated bracket, adjustment block and fixture of the present invention.
Fig. 11 is a first view of the assembly of the fastener of the present invention.
Fig. 12 is a second schematic view of the assembly of the fastener of the present invention.
Fig. 13 is a schematic diagram of the trigger block structure of the present invention.
FIG. 14 is a diagram of the present invention with the trigger block attached in the state of FIG. 10.
Figure 15 is a schematic view of the valve configuration of the present invention.
FIG. 16 is a second schematic view of the integrated bracket structure of the present invention.
Fig. 17 is a third schematic view of the integral support structure of the present invention.
Fig. 18 is a partially enlarged view of a contact portion of the trigger block and the gas valve of the present invention.
Figure 19 is a perspective view in half section of the seat damper of the present invention.
Fig. 20 is an isometric view of a trigger block and gas valve of the present invention.
FIG. 21 is a schematic view of the assembly of the integrated valve mechanism of the present invention with the yoke.
FIG. 22 is a schematic view of the assembly of the integrated valve mechanism and wire pulling mechanism of the present invention.
FIG. 23 is a schematic view of the construction of the pull wire, spring and pull wire securement of the present invention.
Fig. 24 is an exploded view of the wire pulling mechanism of the present invention.
Fig. 25 is a schematic view of the assembly of the wire pulling mechanism of the present invention with the seat cushion.
FIG. 26 is a schematic view of the handle rotation versus pull wire length of the present invention.
Fig. 27 is a schematic view of the operative relationship of the locking tab and locking groove of the present invention.
Fig. 28 is a diagrammatic view of the present invention with the yoke raised.
FIG. 29 is a pictorial representation of the embodiment of FIG. 28 in accordance with the present invention.
FIG. 30 is a diagrammatic view of the present invention with the yoke lowered.
FIG. 31 is a schematic illustration of the embodiment of FIG. 30 according to the present invention.
Fig. 32 is a side view of fig. 22 of the present invention.
FIG. 33 is a schematic view of the operation of the integrated valve mechanism and pull-wire mechanism of the present invention in a shock absorber raised condition.
FIG. 34 is an enlarged fragmentary view of the valve and trigger block of FIG. 33 of the present invention.
FIG. 35 is a schematic view of the rotation of the trigger member of the integrated valve mechanism and pull wire mechanism of the present invention in the shock absorber raised condition.
FIG. 36 is a schematic view of the valve and trigger of the present invention returning to an equilibrium stable state.
Fig. 37 is an operational view of the integrated valve mechanism and wire pulling mechanism of the present invention in a shock absorber lowered state.
Fig. 38 is an enlarged partial view of the valve and trigger block of fig. 37 of the present invention.
FIG. 39 is a schematic diagram of the rotation of the trigger member of the integrated valve mechanism and pull wire mechanism of the present invention in a shock absorber lowered condition.
FIG. 40 is an enlarged partial schematic view of the trigger position of FIG. 39 of the present invention.
FIG. 41 is a schematic view of the valve and trigger of the present invention returning to an equilibrium stable state.
Detailed Description
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, the longitudinal direction (X direction) "," lateral direction (Y direction) "," vertical direction (Z direction) "is a spatial coordinate system term in the automotive field, and is a term of art well known to those skilled in the art, and the above description is for convenience of describing the present invention and simplifying the description, but does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
The detailed structure of the present invention will be further described with reference to the accompanying drawings and the detailed description.
Referring to the seat shock absorber of the integrated valve mechanism of fig. 1, the skeleton of the shock absorber is mainly composed of a shock absorber frame 200 and a yoke 100.
Referring to fig. 2 to 5, the yoke 100 is formed by hinging an inner yoke support 110 and an outer yoke support 120 through a middle tube 130, a bushing 132 is arranged between the middle tube 130 and the inner yoke support 110 and the outer yoke support 120, middle tube stopping members 131 are further respectively arranged on the outer sides of the two sides of the middle tube 130, the middle tube 130 and the middle tube stopping members 131 are welded to complete the fixation of the hinge structure, and thus the stress distribution on the two sides of the yoke 100 is balanced through the middle tube structure. The front and rear ends of the inner yoke bracket 110 and the outer yoke bracket 120 are respectively penetrated with a horizontal tube 101. A damper frame 200 composed of a damper upper frame 210 and a damper lower frame 220 is provided on the yoke 100 through the cross tube 101. An airbag mounting bracket 140 is welded to the inner yoke bracket 110. The damper 600 is hinged to the airbag fixing bracket 140 and the lateral midpoint of the transverse tube 101 of the outer yoke bracket 120, respectively, and the damper 600 is more stable during operation by the centered arrangement.
Referring to fig. 6 in combination, a rotation frame 230 may be further installed at the outer circumference of the damper upper frame 210, and the rotation frame 230 is mainly used to install a seat comfort layer and other accessories.
Referring to fig. 7, a set of integral valve mechanisms 300 is provided on the yoke 100. The integrated valve mechanism 300 mainly includes: an integrated bracket 310, a fixing member 320, an adjusting block 330, a triggering block 340 and an air valve 350.
Referring to fig. 8 to 20, the front end 300a of the integrated bracket 310 is hinged to the transverse tube 101 of the outer yoke bracket 120 through a circular arc 315, and the rear end 300b thereof is hinged to the middle tube 130 through a circular arc bracket bayonet 311. The support bayonet 311, the support bayonet outer wall 312 and the adjusting block bayonet 331 are all arc-shaped, and the adjusting block 330 is clamped into the support bayonet outer wall 312 through the adjusting block bayonet 331 to be hinged, so that the adjusting block 330 can rotate around the support bayonet outer wall 312. A fixing member 320 is clamped in the holder bayonet 311 by a fixing member bayonet outer surface 322, and the fixing member bayonet 321 is attached to the middle tube 130 and can rotate around the middle tube 130 when the holder bayonet 311 is hinged with the middle tube 130. The rotation of the integrated bracket 310, the adjusting block 330 and the fixing member 320 around the middle tube 130 is coaxial. To facilitate the assembly of the rear end 300b of the integrated bracket 310 with the middle tube 130 by snap-fitting, the opening arc a of the bracket bayonet 311 may be greater than or equal to 180 °. A handle 323 is further arranged on one side of the fixing member 320, a fixing member clamping tongue 324 is arranged below the handle 323, the fixing member 320 is rotated by operating the handle 323, the fixing member clamping tongue 324 is clamped on the airbag fixing support 140, the fixing member 320 further reduces the radian A' of the hinged bayonet of the integrated valve mechanism 300 and the middle pipe 130 in the clamping rotation process, and meanwhile, the fixing member 320 also synchronously rotates clockwise in the rising process of the middle pipe 130 to further reduce the radian of the bayonet, so that the rear end of the integrated support 310 is prevented from falling off from the middle pipe 130.
A trigger block fixing hole 313 is provided on each of the bracket first side wall 318 and the bracket second side wall 317 of the integrated bracket 310, and the trigger block 340 is fixed in the trigger block fixing hole 313 through a shaft 341 to complete the hinge joint of the trigger block 340 with respect to the integrated bracket 310 such that the trigger block 340 is located at the front end 300a side of the adjustment block 330. The front end of the adjusting block 330 is provided with an adjusting block first touch point 334 and an adjusting block second touch point 335. The front end of the trigger block 340 is provided with a first front trigger block contact 344 and a second front trigger block contact 345, and the rear end is provided with a first rear trigger block contact 342 and a second rear trigger block contact 343. When the adjusting block 330 rotates, the adjusting block first touch point 334 and the adjusting block second touch point 335 respectively contact with the trigger block first rear contact 342 and the trigger block second rear contact 343, so as to push the trigger block 340 to rotate.
The gas valve 350 is fixed to the integrated bracket 310 by a fastener through the gas valve fixing hole 314 formed in the second side wall 317 of the bracket, and the gas valve 350 is located at the other side of the trigger block 340. The upper part of the gas valve 350 is provided with an inlet valve 351 and an outlet valve 352 respectively. When the trigger block 340 rotates, the trigger block first front contact 344 and the trigger block second front contact 345 achieve air inlet lifting and air outlet lowering of the airbag 500 by pressing the air inlet valve 351 and the air outlet valve 352, respectively.
When the seat shock absorber is at rest, the first front contact 344 and the second front contact 345 of the trigger block do not contact the air valve 350, and the first rear contact 342 and the second rear contact 343 of the trigger block synchronously contact the first contact 334 and the second contact 335 of the adjustment block, so that the balance shock absorption state is formed between the trigger block 340 and the adjustment block 330.
Referring to fig. 21, a yoke front fixing portion 111 protruding rearward is further provided on the cross tube 101 of the outer yoke bracket 120. The integrated bracket 310 is clamped on the fork arm front fixing part 111 through a bracket clamping tongue 316 arranged on the side part of the front end of the integrated bracket 310, and is matched with a fixing part clamping device 324 arranged on the other side of the integrated bracket 310 to prevent the integrated bracket 310 from laterally shaking. All the driving and valve body mechanisms are integrated in the integrated valve mechanism 300, so that the structure among the parts becomes more compact, and the problem of inaccurate inflation and deflation of the air bag caused by the accumulated tolerance of the parts is solved. Meanwhile, the fixing of the mechanisms through the middle tube 130 also enables the center of gravity in the yoke 100 to be more centralized inwards and more stable in movement.
Referring to fig. 22 to 25, the wire pulling mechanism 400 includes: a handle 405, a handle base 403, a pull wire 401, a spring 406, a locking tab 404, and a pull wire fixture 402.
The upper portion of the adjusting block 330 is provided with a hanging point 333, and the hanging point 333 comprises a spring hanging point 333a and a pull wire hanging point 333b which are adjacently arranged.
One end of the spring 406 is fixed to the spring hanging point 333a of the adjustment block 330, and the other end thereof is fixed to the yoke front fixing portion 111. One end of the pull wire 401 is fixed to the pull wire hanging point 333b, and the other end is fixed to the handle 405. The pull wire fixing piece 402 is arranged on the airbag fixing bracket 140, the pull wire 401 penetrates through the pull wire fixing piece 402 and is connected with the pull wire hanging point 333b, so that the acting force of the pull wire 401 and the spring 406 on the adjusting block 330 is positioned on the same plane, and the purpose of controlling the adjusting block 330 to rotate is achieved by changing the length of the pull wire 401 and matching the spring 406.
The handle base 403 is provided on the damper frame 200 (alternatively, may be provided on the rotating frame 230). The handle 405 is hinged to the handle base 403, and rotating the handle 405 changes the extension length of the wire.
Referring to fig. 26 and 27, a locking plate 404 is further provided in the handle 405, and a plurality of locking grooves 403a are provided in the handle base 403, each locking groove 403a corresponding to a release of a fixed length of the pull wire 401 to cause the damper to be adjusted to a high gear. The locking piece 404 rotates along with the handle 405 (as shown by the arrow in fig. 26), and during the rotation, the arc-shaped locking tongue 404b on the resilient part 404a at one end of the locking piece 404 slides into the locking groove 403a to fix the handle 405.
Referring to fig. 28 to 32, the inflation and deflation of the airbag 500 are mainly controlled by the cooperation of the integrated valve mechanism 300 and the wire pulling mechanism 400, so that the height of the seat damper can be adjusted in different gears, and the airbag 500 is also controlled to adaptively absorb the vibration generated during the driving process at different height positions.
The rotation of the adjusting block 330 is controlled by the pull wire 401 and the spring 406, and the triggering block 340 is pushed by the adjusting block 330 to rotate synchronously, so that the air valve 350 is switched among the inflation state, the deflation state and the closing state. When the airbag 500 inflates, the airbag 500 supports the inner yoke support 110 to be lifted, so that the inner yoke support 110 and the outer yoke support 120 perform reverse rotation movements around the middle tube 130, thereby lifting the upper shock absorber frame 210 fixed above the yoke 100 relative to the lower shock absorber frame 220 below. When the air bag 500 is deflated to cause the inner yoke support 110 and the outer yoke support 120 to rotate in opposite directions during lifting, the shock absorber upper frame 210 is lowered.
Referring to fig. 33 to 36, when the handle 405 is rotated upward, the seat damper enters a heightened state. The cable 401 is lengthened, the adjusting block 330 rotates counterclockwise (the arrow in the figure is the rotation direction) under the pulling of the spring 406, the first contact point 334 of the adjusting block is continuously contacted with the first rear contact point 342 of the triggering block, the second contact point 335 of the adjusting block is separated from the second rear contact point 343 of the triggering block, the triggering block 340 rotates around the shaft 341 (the arrow in the figure is the rotation direction) and presses the air inlet valve 351 through the first front contact point 344 of the triggering block. In the process that the middle tube 130 continuously rises, the stay wire fixing member 402 rotates clockwise (the arrow in the figure is the rotation direction) around the middle tube 130 along with the airbag fixing bracket 140, the front end 300a of the integrated bracket 310 rotates in the opposite direction relative to the middle tube, and finally the stay wire 401 pulls the adjusting block 330 to rotate clockwise from the counterclockwise rotation, so that the adjusting block 330 returns to the position of the stable state, and the height adjustment is completed.
Referring to fig. 37 to 40, when the handle 405 is rotated downward, the seat damper enters a lowered state. The pull wire 401 is shortened, the adjusting block 330 rotates clockwise (the arrow in the figure is the rotation direction) under the pulling of the spring 406, the second contact point 335 of the adjusting block is continuously contacted with the second rear contact point 343 of the trigger block, the first contact point 334 of the adjusting block is separated from the first rear contact point 342 of the trigger block, the trigger block 340 rotates around the shaft 341 (the arrow in the figure is the rotation direction) and extrudes the air valve 352 through the second front contact point 345 of the trigger block. In the process of continuously lowering the middle tube 130, the pull wire fixing member 402 rotates counterclockwise around the middle tube 130 along with the airbag fixing bracket 140, the front end 300a of the integrated bracket 310 rotates in the opposite direction relative to the middle tube, and finally the pull wire 401 pulls the adjusting block 330 to rotate counterclockwise from the clockwise rotation, so that the adjusting block 330 returns to the position of the stable state, thereby completing the lowering action.
Referring to fig. 41, when the seat damper is in a balanced damping state, if the load is momentarily increased due to a force F1 applied to the top of the seat damper, the middle tube 130 tends to be lowered, and as the position degree of the adjusting block 330 and the stay wire fixing member 402 changes, the spring 406 pulls the adjusting block 330 to rotate counterclockwise, and the air bag 500 is inflated to urge the seat damper to enter a heightened state momentarily to output F2 to offset the impact. In the process, the length of the pull wire 401 is not substantially changed, so that when the seat damper is over-high after the impact disappears, the pull wire 401 drives the adjusting block 330 to rotate reversely to lower the height of the seat damper and return to the original position, and vice versa.

Claims (15)

1. A seat shock absorber of an integrated valve mechanism comprises a fork arm, a shock absorber frame, an air bag fixing support, a damper, an air bag and a wire drawing mechanism which are arranged on the fork arm, and is characterized in that,
the integrated valve mechanism is arranged on the fork arm, the front end of the integrated valve mechanism is hinged to the front end of the fork arm, and the rear end of the integrated valve mechanism is hinged to a central hinge point of the fork arm;
the integrated valve mechanism and the wire pulling mechanism are matched to control the inflation and the deflation of the air bag, so that the height of the seat shock absorber can be adjusted in different gears, and the air bag is also controlled to absorb the vibration generated in the running process in a self-adaptive mode at different height positions.
2. The seat cushion shock absorber of an integrated valve mechanism according to claim 1, further comprising:
the fork arm consists of an inner fork arm bracket and an outer fork arm bracket;
the inner yoke support and the outer yoke support are hinged through a middle pipe, and therefore stress distribution on two sides of the yoke is balanced.
3. The seat cushion shock absorber of an integrated valve mechanism according to claim 2,
the airbag fixing support is arranged on the inner side fork arm support.
4. The valve mechanism integrated seat shock absorber of claim 3, wherein both ends of the damper are hinged with the airbag fixing bracket and the outer side yoke bracket, respectively.
5. The integrated valve mechanism seat shock absorber of claim 4, wherein the damper is centrally located in the yoke.
6. A seat damper of an integrated valve mechanism according to claim 2 or 3, wherein said integrated valve mechanism comprises: the device comprises an integrated bracket, a regulating block, a triggering block and an air valve;
the integrated valve mechanism is respectively hinged on the middle pipe and the outer fork arm bracket through the integrated bracket;
the adjusting block is also hinged to the middle pipe through the integrated support, and the rear end of the integrated support and the adjusting block can coaxially rotate around the middle pipe;
the trigger block is hinged on the integrated bracket, and the adjusting block is positioned on one side of the trigger block;
the air valve is fixed on the integrated bracket and is positioned on the other side of the trigger block;
the wire pulling mechanism controls the adjusting block to rotate, the adjusting block pushes the triggering block to synchronously rotate, so that the air valve is switched among inflation, deflation and closing states, and the seat shock absorber is controlled to work under the states of height adjustment, reduction and balanced shock absorption;
when the seat shock absorber is in a height-adjusting state, the wire-pulling mechanism controls the adjusting block to rotate anticlockwise when the adjusting block leaves an original balance position, the triggering block is pushed to rotate anticlockwise synchronously so as to press an air inlet valve on the air valve to enable the fork arm to rise under the pushing of the air bag, and the wire-pulling mechanism drives the adjusting block and the triggering block to gradually return in the rising process to finally complete the set gear height adjustment;
when the seat shock absorber is in a lowering state, the wire pulling mechanism controls the adjusting block to rotate clockwise away from an original balance position, the trigger block is pushed to rotate clockwise synchronously so as to extrude an air inlet valve on the air valve to enable the supporting force of the air bag on the fork arm to be reduced, the height of the fork arm is reduced, and the wire pulling mechanism drives the adjusting block and the trigger block to gradually return in the reducing process to finally complete the reduction of a set gear;
or:
when the seat shock absorber is in a height-adjusting state, the wire-pulling mechanism controls the adjusting block to rotate clockwise from an original balance position, the triggering block is pushed to rotate clockwise synchronously so as to extrude an air inlet valve on the air valve to enable the fork arm to rise under the pushing of the air bag, and the wire-pulling mechanism drives the adjusting block and the triggering block to gradually return in the rising process to finally complete the set gear height adjustment;
when the seat shock absorber is in a lowering state, the wire pulling mechanism controls the adjusting block to rotate anticlockwise when the adjusting block leaves an original balance position, the trigger block is pushed to rotate anticlockwise synchronously so as to press an air inlet valve on the air valve to enable the supporting force of the air bag on the fork arm to be reduced, the height of the fork arm is reduced, and the wire pulling mechanism drives the adjusting block and the trigger block to gradually return in a reducing process to finally complete the reduction of a set gear;
when the seat shock absorber is in a balanced shock absorption state, if the top load of the seat shock absorber is increased instantly, the fork arm is in a descending trend, the adjusting block leaves the original balance position and rotates under the control of the wire drawing mechanism, so that the seat shock absorber enters a height adjusting state instantly to offset the impact, and when the seat shock absorber is ultrahigh after the impact disappears, the wire drawing mechanism drives the adjusting block to rotate reversely, so that the height of the seat shock absorber is reduced, and the seat shock absorber returns to the original position again, or vice versa.
7. The seat damper of an integrated valve mechanism according to any one of claim 6,
the rear end of the integrated bracket is hinged to the middle pipe through a bracket bayonet;
the adjusting block is hinged to the outer wall of the support bayonet through the adjusting block bayonet, so that the adjusting block can rotate around the outer wall of the support opening;
the front end of the adjusting block is also provided with a first adjusting block touch point and a second adjusting block touch point, the front end of the trigger block is respectively provided with a first trigger block front contact and a second trigger block front contact, and the rear end of the trigger block is respectively provided with a first trigger block rear contact and a second trigger block rear contact;
when the adjusting block rotates anticlockwise under the control of the inhaul cable mechanism, the first touch point of the adjusting block pushes the first rear contact of the trigger block to enable the trigger block to rotate synchronously, so that the first front contact of the trigger block extrudes the air valve;
when the adjusting block rotates clockwise under the control of the inhaul cable mechanism, the second touch point of the adjusting block pushes the second rear contact of the trigger block to enable the trigger block to rotate synchronously, so that the second front contact of the trigger block extrudes the air valve.
8. The seat damper of the integrated valve mechanism according to any one of claim 7, wherein a front end of the integrated bracket is hinged to a cross tube of the outer yoke bracket through an arc.
9. The seat cushion shock absorber of an integrated valve mechanism according to any one of claims 6 and 7, wherein the wire pulling mechanism comprises: the pull wire fixing part is arranged on the pull wire;
one end of the spring is fixed on a hanging point of the adjusting block, and the other end of the spring is fixed on a transverse pipe of the outer fork arm support;
one end of the pull wire is also fixed on the hanging point;
the pull wire fixing piece is arranged on the air bag fixing support, and one end of the pull wire penetrates through the pull wire fixing piece to be connected with the hanging point, so that the acting force of the pull wire and the spring on the adjusting block is positioned on the same plane.
10. The valve train seat cushion damper of claim 9, wherein the wire pulling mechanism further comprises: a handle and a handle base;
the handle base is arranged on the shock absorber frame;
the handle is hinged to the handle base, the other end of the pull wire is connected with the handle, and the extending length of the pull wire is changed by rotating the handle.
11. The seat damper of integrated valve mechanism according to claim 10, wherein a locking piece is further disposed in the handle, and at least one locking groove is disposed on the handle base, and the locking piece rotates along with the handle and is locked in the locking groove during rotation to form an adjustment position of the seat damper.
12. The valve train seat cushion according to claim 7, wherein the air valve is provided with an air inlet valve and an air outlet valve, and the trigger block first front contact and the trigger block second front contact respectively achieve air inlet lift and air outlet lift of the air bag by pressing the air inlet valve and the air outlet valve.
13. The valve train seat cushion damper of claim 7, wherein the integrated bracket further comprises a fixing member, the fixing member is hinged to the middle tube by engaging the bracket bayonet with the fixing member bayonet, the fixing member bayonet is attached to the bracket bayonet on an outer surface, and the fixing member is rotatable around the bracket bayonet.
14. The seat damper of an integrated valve mechanism according to claim 13, wherein a fixing member locking tongue is further provided at one side of the fixing member, and the fixing member locking tongue is locked to the airbag fixing bracket, so that the fixing member is synchronously rotated during the ascent of the middle tube, and the rear end of the integrated bracket is prevented from falling off from the middle tube.
15. The seat cushion shock absorber of an integrated valve mechanism according to claim 9,
the transverse pipe of the outer side fork arm support is also provided with a fork arm front fixing part;
the integrated bracket is clamped on the front fixing part of the fork arm through a bracket clamping tongue, so that the integrated bracket is prevented from laterally shaking;
the other end of the spring is fixed on the transverse pipe of the outer side fork arm support through the fork arm front fixing part.
CN202210805599.0A 2022-07-08 2022-07-08 Seat shock absorber of integrated valve mechanism Active CN115352333B (en)

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CN115352333B CN115352333B (en) 2024-03-19

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR950011207A (en) * 1993-10-19 1995-05-15 박창선 Car Seat Shock Absorber
CN103568881A (en) * 2013-10-18 2014-02-12 浙江天成自控股份有限公司 Seat rapid-declining device with memory function
CN103935270A (en) * 2014-04-19 2014-07-23 长春富维—江森自控汽车饰件系统有限公司 Integrated step-adjustment air vibration reduction seat
JP2014162397A (en) * 2013-02-26 2014-09-08 Namba Press Works Co Ltd Air suspension device for vehicle sheet
CN206012389U (en) * 2016-08-31 2017-03-15 浙江天成自控股份有限公司 The simple arrangement for adjusting height of air bag suspension shock absorbing seat
CN112046358A (en) * 2020-10-24 2020-12-08 浙江龙生汽车部件科技有限公司 Automobile seat air bag adjusting type damping device and height adjusting method thereof
CN112172630A (en) * 2020-10-24 2021-01-05 浙江龙生汽车部件科技有限公司 Automobile seat cam adjusting type damping device and damping method and height adjusting method thereof
CN214001435U (en) * 2020-10-24 2021-08-20 浙江龙生汽车部件科技有限公司 Automobile seat air bag adjusting type shock absorber
CN114084050A (en) * 2021-12-27 2022-02-25 常州华阳万联汽车附件有限公司 Lifting seat underframe assembly
CN216709093U (en) * 2021-12-27 2022-06-10 常州华阳万联汽车附件有限公司 Lifting seat underframe assembly

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR950011207A (en) * 1993-10-19 1995-05-15 박창선 Car Seat Shock Absorber
JP2014162397A (en) * 2013-02-26 2014-09-08 Namba Press Works Co Ltd Air suspension device for vehicle sheet
CN103568881A (en) * 2013-10-18 2014-02-12 浙江天成自控股份有限公司 Seat rapid-declining device with memory function
CN103935270A (en) * 2014-04-19 2014-07-23 长春富维—江森自控汽车饰件系统有限公司 Integrated step-adjustment air vibration reduction seat
CN206012389U (en) * 2016-08-31 2017-03-15 浙江天成自控股份有限公司 The simple arrangement for adjusting height of air bag suspension shock absorbing seat
CN112046358A (en) * 2020-10-24 2020-12-08 浙江龙生汽车部件科技有限公司 Automobile seat air bag adjusting type damping device and height adjusting method thereof
CN112172630A (en) * 2020-10-24 2021-01-05 浙江龙生汽车部件科技有限公司 Automobile seat cam adjusting type damping device and damping method and height adjusting method thereof
CN214001435U (en) * 2020-10-24 2021-08-20 浙江龙生汽车部件科技有限公司 Automobile seat air bag adjusting type shock absorber
CN114084050A (en) * 2021-12-27 2022-02-25 常州华阳万联汽车附件有限公司 Lifting seat underframe assembly
CN216709093U (en) * 2021-12-27 2022-06-10 常州华阳万联汽车附件有限公司 Lifting seat underframe assembly

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