CN104760700A - Self-locking aero seat capable of adjusting height steplessly - Google Patents
Self-locking aero seat capable of adjusting height steplessly Download PDFInfo
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- CN104760700A CN104760700A CN201510187734.XA CN201510187734A CN104760700A CN 104760700 A CN104760700 A CN 104760700A CN 201510187734 A CN201510187734 A CN 201510187734A CN 104760700 A CN104760700 A CN 104760700A
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Abstract
The invention relates to the technical field of aero equipment, in particular to a self-locking aero seat capable of adjusting height steplessly. The self-locking aero seat capable of adjusting the height steplessly comprises column-shaped seat legs which are fixedly installed on a seat back of a seat pan through fixing seats in an opposite mode, an upper support frame and a lower support frame are fixedly installed between the seat legs, a sliding block is fixedly installed on the seat back, a threaded hole formed in the sliding block is connected with a threaded shaft in a matched mode, the threaded shaft is installed on the upper support frame and the lower support frame through a conical roller bearing, the threaded shaft penetrates through one end of the upper support frame and is fixedly connected with a worm gear which is connected with a worm arranged on supporting seats in a matched mode, the end of the worm is provided with a rotating wheel with a handle, a frictional angle of worm-gear transmission is larger than a lead angle, and a screw transmission frictional angle of the threaded shaft and the threaded hole is larger than the lead angle. According to the self-locking aero seat capable of adjusting the height steplessly, a braking system is not necessary due to the double self-locking property, defects that for a traditional height adjusting control device, the operation is complex, and misoperation is prone to occurring are overcome, the operation is simple, and the reliability is good.
Description
Technical field
The present invention relates to air material technical field, be specifically related to the self-locking type aero seat that the stepless height of a kind of energy regulates.
Background technology
Current aero seat does not have the upper and lower stepless arrangement for adjusting height of self-locking type, general employing be between the upper and lower apart from height adjusting and controlling device, realize spacing to regulate, the amount of height of each up-down adjustment is the integral multiple of spacing, the height being equivalent to aero seat seat surface distance ground like this only has several fixed value, when upper-lower height regulates, surface height can only convert between these fixed values.The height of occupant changes greatly in certain scope, and the height of different occupant is uneven, so can not ensure every occupant all on suitable ride height position apart from arrangement for adjusting height between the upper and lower.General upper-lower height control set for adjusting does not have self-locking performance, needs to be equipped with brake system separately, will first unlock before adjustment, also will again lock after having regulated, and operates more loaded down with trivial details, also will have error protection measure, otherwise will cause maloperation.
Chinese patent CN103359288A discloses a kind of device for regulating aero seat to be elevated, comprise support, regulating mechanism, slide rail, described regulating mechanism comprises drive motor, housing, gear, power-transfer clutch, screw, leading screw, described drive motor is fixedly mounted on housing, gear and screw are arranged on housing respectively by bearing, the outer setting of screw has tooth, leading screw external diameter is provided with screw thread and is arranged on screw by described screw thread fit, the output gear of drive motor is connected with screw with gear by power-transfer clutch, leading screw is connected with aero seat, described slide rail to be fixed on aero seat and to coordinate with the guide rail that support is arranged.The present invention is rational in infrastructure, space requirement is little, reliable operation, the regulatory function of aero seat in little space can be completed, and when drive motor power-off, manually can regulate aero seat, thus realize aviator and carry out operating and passing in and out aircraft, ensure that aviator escapes in accident.But this patent does not solve the technical matters that aero seat upper-lower height control set for adjusting does not have self-locking performance yet.
Summary of the invention
In order to overcome defect of the prior art, the self-locking type aero seat that the stepless height of a kind of energy provided by the invention regulates, on the arbitrary height position that aero seat surface height can be made to be adjusted in setting setting range, what overcome existing aero seat can not ensure the shortcoming of every occupant all on suitable ride height position apart from height adjusting control mechanism between the upper and lower.The present invention has self-locking performance, without the need to additionally increasing brake system, can overcome traditional height adjusting and controlling device complex operation, easily occurring the shortcoming of maloperation.
The present invention is achieved through the following technical solutions: the self-locking type aero seat that the stepless height of a kind of energy regulates, comprise be packed in chair basin respectively by permanent seat seat-back position on and be oppositely arranged two cylindricality chair legs, upper support frame and lower support frame is fixed with according to order from top to bottom between described two cylindricality chair legs, the chair back of described chair basin is fixed with slide block, described slide block is provided with tapped through hole, described tapped through hole is connected with the screw thread fit on threaded shaft, together with an axle head of described threaded shaft connects firmly with worm gear through described upper support frame, described worm gear and the worm screw be arranged on supporting seat are connected, the end of described worm screw is fixed with establishes handled runner, another axle head of described threaded shaft is arranged on lower support frame, described worm gear and worm geared friction angle are greater than worm and gear lead angle, the worm drive friction angle of described threaded shaft and tapped bore is greater than thread helix lift angle, described worm gear and worm geared friction angle and worm drive friction angle scope are 8.5 ° ~ 12 °, described worm and gear lead angle scope is 3 ° ~ 5.1 °, described thread helix lift angle scope is 4.9 ° ~ 6.55 °.
Further, described thread helix lift angle is 6.4 °, and worm drive friction angle is 9.99 °; Described worm and gear lead angle is 5.1 °, and described worm gear and worm geared friction angle are 10.2 °.
Further, described thread helix lift angle is 4.81 °, and worm drive friction angle is 8.83 °; Described worm and gear lead angle is 3.81 °, and described worm gear and worm geared friction angle are 10.2 °.
Further, the chair back of described chair basin is rectangle, and described permanent seat is four and is symmetricly set on four angles of the described rectangle chair back.
Further, described cylindricality chair leg is cylinder, and two described columniform chair leg tops are connected with crossbeam.
Further, be connected with one end of aircraft floor link span respectively bottom described two cylindricality chair legs, the other end of described aircraft floor link span is connected with support one end, and the other end of described support is packed on lower support frame.
Further, described supporting seat is three.
Further, described threaded shaft two ends are respectively equipped with tapered roller bearing, and one of them tapered roller bearing arranges the upper surface of lower support frame, and another tapered roller bearing arranges upper support frame lower surface.
Further, described tapped bore is arranged on its center position.
Further, described permanent seat is provided with the through hole be set with cylindricality chair leg, is provided with plain bearing in described through hole.
Compared with prior art, superior effect is the self-locking type aero seat that the stepless height of energy of the present invention regulates:
1) the present invention can have self-locking performance, without the need to additionally increasing brake system, just can overcome traditional height adjusting and controlling device complex operation, easily occurring the shortcoming of maloperation;
2) the present invention is that every the occupant taking aero seat provides suitable ride height, aero seat is suitable for and uses crowd more widely, more meets ergonomics, utilize the present invention can improve the traveling comfort of aero seat;
3) the present invention has double self locking, without the need to increasing catch gear separately, simple to operate, good reliability.
Accompanying drawing explanation
Fig. 1 is the spatial structure assembly drowing of the self-locking type aero seat that the stepless height of energy of the present invention regulates;
Fig. 2 is the spatial structure back view of the self-locking type aero seat that the stepless height of energy of the present invention regulates;
Fig. 3 is the spatial structure front elevation of the self-locking type aero seat that the stepless height of energy of the present invention regulates.
Reference numeral is as follows:
1-worm gear, 2-cylindricality chair leg, 3-permanent seat, 4-upper support frame, 5-slide block, 6-tapered roller bearing, 7-lower support frame, 8-chair basin, 9-threaded shaft, 10-supporting seat, 11-worm screw, 12-runner, 13-handle, 14-support, 15-aircraft floor link span, 16-crossbeam.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the invention is described in further detail.
Embodiment 1
As Figure 1-3, illustrate the self-locking type aero seat that the stepless height of a kind of energy provided by the invention regulates, comprise be packed in chair basin 8 respectively by permanent seat 3 seat-back position on and be oppositely arranged two cylindricality chair legs 2, upper support frame 4 and lower support frame 7 is fixed with according to order from top to bottom between described two cylindricality chair legs 2, the chair back of described chair basin 8 is fixed with slide block 5, described slide block 5 is provided with tapped through hole, described tapped through hole is connected with the screw thread fit on threaded shaft 9, together with an axle head of described threaded shaft 9 connects firmly with worm gear 1 through described upper support frame 4, described worm gear 1 is connected with the worm screw 11 be arranged on supporting seat 10, the end of described worm screw 11 is fixed with the runner 12 being provided with handle 13, another axle head of described threaded shaft 9 is arranged on lower support frame 7, described worm gear 1 and the friction angle of worm screw 11 transmission are greater than the lead angle of worm gear 1 and worm screw 11, the worm drive friction angle of described threaded shaft 9 and tapped bore is greater than the lead angle of threaded shaft 9 and tapped bore, friction angle and the worm drive friction angle scope of described worm gear 1 and worm screw 11 transmission are 8.5 ° ~ 12 °, described worm and gear lead angle scope is 3 ° ~ 5.1 °, described thread helix lift angle scope is 4.9 ° ~ 6.55 °.
In embodiment 1, screw pair selects Acme thread, screw thread model: Tr40 × 12-7H/8e, and its thread helix lift angle is 6.4 °, and described threaded shaft 9 material is steel, and the material of described slide block 5 is steel, and described worm drive friction angle is 9.99 °.The modulus of described Worm and worm-wheel gearing is 2.5, and described worm screw 11 is common round bar screw rod, and head number is 1, and lead angle is 5.1 °; The number of teeth of described worm gear 1 is 29, and described helical angle is 5.1 °; The material of worm screw 11 is steel, and the material of described worm gear 1 is tin-free bronze, and described worm gear 1 is 10.2 ° with the friction angle of worm screw 11 transmission.
The chair back of described chair basin 8 is rectangle, and described permanent seat 3 is four and is symmetricly set on four angles of the described rectangle chair back, and described cylindricality chair leg 2 is preferably cylinder, and two described columniform chair leg 2 tops are connected with crossbeam 16.In the present embodiment, be connected with one end of aircraft floor link span 15 respectively bottom described two columniform chair legs 2, the other end of described aircraft floor link span 15 is connected with support 14 one end, and the other end of described support 14 is packed on lower support frame 7.Described supporting seat 10 is preferably three, described threaded shaft 9 two ends are respectively equipped with tapered roller bearing 6, one of them tapered roller bearing 6 arranges the upper surface of lower support frame 7, another tapered roller bearing 6 is arranged on upper support frame 4 lower surface, described tapped bore is arranged on slide block 5 center, described permanent seat 3 is provided with the through hole be set with cylindricality chair leg 2, is provided with plain bearing in described through hole.
Embodiment 2
Embodiment 2 is with the difference of embodiment 1: in embodiment 2, screw pair selects Acme thread, screw thread model: Tr60 × 14-7H/8e, the lead angle of described screw thread is 4.81 °, described threaded shaft 9 material is steel, described slide block 5 material is spheroidal graphite iron, and described worm drive friction angle is 8.83 °.The modulus of described Worm and worm-wheel gearing is 1.25, and described worm screw 11 is common round bar screw rod, and head number is 1, and lead angle is 3.81 °; The number of teeth of described worm gear 1 is 62, and worm and gear helical angle is 3.81 °; The material of worm screw 11 is steel, and the material of worm gear 1 is tin-free bronze, and described worm screw 11 is 10.2 ° with the friction angle of worm gear 1 transmission.
The principle of work of self-locking type aero seat that the stepless height of a kind of energy provided by the invention regulates: the present invention's utilize Worm and worm-wheel gearing to realize characteristic that rotary motion can be converted to straight-line motion by continuous transmission and screw-drive mechanism, the stepless height of carry-over moment and realization movement regulates, and utilize the self-locking performance of Worm and worm-wheel gearing and spiral transmission mechanism to achieve double self locking of the present invention, wherein, the two axial lines of worm and gear transmission mechanism is spatially staggered in 90 °, the axis being parallel of worm screw 11 is in ground, and the axes normal of worm gear 1 is in ground.Threaded shaft 9 and the worm gear 1 of spiral transmission mechanism are fixed together and coaxial, threaded shaft 9 is fixed by bearing, can around own axis, slide block 5 in spiral transmission mechanism is connected with the chair basin 8 of aero seat, it is restrained that tapped bore in slide block 5 realizes being rotated about axis degree of freedom, when threaded shaft 9 be subject to moment loading that worm gear 1 passes over rotate time, the axis of threadingly axle 9 moves up and down by slide block 5, when needing upper-lower height to regulate, torque is applied to worm screw 11, worm gear 1 is driven to rotate, worm gear 1 drives threaded shaft 9 to rotate, threaded shaft 9 carry-over moment is to slide block 5, slide block 5 moves driving a direction of chair basin 8 threadingly axle 9 axis, when being applied to that on worm screw 11, torque direction is contrary, worm gear 1 will reverse, and drive threaded shaft 9 to reverse, and the moment passing to slide block 5 will be contrary, and slide block 5 moves driving another direction of chair basin 8 threadingly axle 9 axis.Threaded shaft 9 is perpendicular to the ground, and an one axis is upwards relative to ground, and another is downward relative to ground.Positive and negative two kinds of torques are applied by giving the worm screw 11 of Worm and worm-wheel gearing, the slide block 5 of spiral transmission mechanism can be made to drive chair basin 8 to move along the both direction of its spiral transmission mechanism axis, i.e. the moving up or down of relative ground, thus the ride height achieving occupant regulates.To the worm screw 11 of Worm and worm-wheel gearing apply torque make occupant reach desired height time, stop on worm screw 11 and apply moment, the applied moment on worm screw 11 is zero.Because the slide block 5 axial-rotation degree of freedom of spiral transmission mechanism is restrained, the gravity of occupant and the gravity of chair basin 8 are applied on the threaded shaft 9 of spiral transmission mechanism by the slide block 5 of spiral transmission mechanism only has axial force, because spiral transmission mechanism is self-locking spiral transmission mechanism, the applying of this axial force can not drive threaded shaft 9 to rotate.Like this, the slide block 5 of spiral transmission mechanism will on spiral transmission mechanism transfixion, the ride height of occupant is also by constant.When shock and vibration, threaded shaft 9 rotation of spiral transmission mechanism may be caused, the rotation of threaded shaft 9 will drive worm gear 1 to rotate, the self-locking performance of Worm and worm-wheel gearing will stop worm gear 1 to rotate, because worm gear 1 is fixed together with the threaded shaft 9 of spiral transmission mechanism, so the rotation of the threaded shaft 9 of spiral transmission mechanism also will be prevented from, ensure that slide block 5 transfixion of spiral transmission mechanism, thus the ride height of occupant also will remain unchanged.The present invention utilizes the self-locking performance of Worm and worm-wheel gearing transmission and screw-drive mechanism to achieve double self locking.Threaded shaft 9 corner of spiral transmission mechanism is corresponding with slide block 5 miles of relative movement, change threaded shaft 9 corner, just change slide block 5 displacement of spiral transmission mechanism, if the knots modification of threaded shaft 9 corner can reach stepless, the slide block 5 displacement knots modification of spiral transmission mechanism will be also stepless.Worm and worm-wheel gearing can realize continuous transmission, the type of drive driving spiral transmission mechanism to rotate by Worm and worm-wheel gearing makes spiral transmission mechanism realize continuous rotation, thus the screw rod corner of spiral transmission mechanism is changed arbitrarily, so slide block 5 displacement of spiral transmission mechanism reaches stepless change, slide block 5 drives the displacement knots modification of chair basin also will reach stepless change, afterwards the ride height of occupant will achieve step-less adjustment, present invention achieves step-less adjustment height, after chair basin 8 is adjusted to occupant's desired height, without the need to any brake equipment, the ride height of occupant will be fixed up, change the ride height of occupant, only on worm screw 1, apply moment, therefore, the present invention can realize self-locking.
In embodiment 1, permanent seat 3 is bolted on chair basin 8, chair leg 2 is arranged on the plain bearing of permanent seat 3, chair basin 8 can slide up and down with the axis of permanent seat 3 along chair leg 2, slide block 5 is fixed on chair basin 8 by bolt, threaded shaft 9 is arranged on slide block 5, the inner ring of two tapered roller bearings 6 is arranged on the bearing boss place of threaded shaft 9, the outer ring of two tapered roller bearings 6 is arranged in the bearing groove of upper support frame 4 and lower support frame 7 respectively, by bolt, upper support frame 4 and lower support frame 7 are fixed on two chair legs 2, worm gear 1 is fixed on the termination of threaded shaft 9, three supporting seats 10 are arranged on upper support frame 4, by screw, three supporting seats 10 are fixed on the cooperation realizing worm gear 1 and worm screw 11 after on upper support frame 4, runner 12 is fixed on the termination of worm screw 11, handle 13 is fixed on runner 12, runner 12 and worm screw 11 are fixed together, runner 12 rotates and is rotated by drive worm screw 11, worm screw 11 is by the constraint of supporting seat 10, can only around own axis, worm screw 11 rotates carry-over moment to worm gear 1, worm gear 1 is driven to rotate, worm gear 1 and threaded shaft 9 are fixed together and coaxial, worm gear 1 rotates and is rotated by drive threaded shaft 9.Threaded shaft 9 retrains by two tapered roller bearings 6, can only around own axis.Threaded shaft 9 rotates by carry-over moment to slide block 5, and it is restrained that slide block 5 retrains by chair basin 8 degree of freedom rotated around self axle, and slide block 5 can only move along own axes when being subject to the moment loading that threaded shaft 9 passes over.Slide block 5 is fastened on chair basin 8, and drive chair basin 8 moves by the movement of slide block 5.
Passenger riding, on chair basin 8, when needing to regulate height downwards, catches handle 13 to rotate clockwise runner 12, by Worm and worm-wheel gearing and screw-drive mechanism carry-over moment, drive chair basin 8 to move down, position reduces by occupant, after being adjusted to ideal position, unclamp handle.Under worm-and-wheel gear of the present invention and the effect of spiral transmission mechanism self-locking performance, the chair basin 8 caused due to occupant's Action of Gravity Field can be stoped to glide, occupant will keep on ideal position after adjustment; When occupant needs upwards to regulate height, catch handle 13 to rotate counterclockwise runner 12, occupant position will raise.
The present invention is not limited to above-mentioned embodiment, and when not deviating from flesh and blood of the present invention, any distortion that it may occur to persons skilled in the art that, improvement, replacement all fall into protection scope of the present invention.
Claims (10)
1. the self-locking type aero seat of the stepless height adjustment of energy, it is characterized in that, described self-locking type aero seat comprise be packed in chair basin (8) respectively by permanent seat (3) seat-back position on and be oppositely arranged two cylindricality chair legs (2), upper support frame (4) and lower support frame (7) is fixed with according to order from top to bottom between described two cylindricality chair legs (2), the chair back of described chair basin (8) is fixed with slide block (5), described slide block (5) is provided with tapped through hole, described tapped through hole is connected with the screw thread fit on threaded shaft (9), together with an axle head of described threaded shaft (9) connects firmly with worm gear (1) through described upper support frame (4), described worm gear (1) and the worm screw (11) be arranged on supporting seat (10) are connected, the end of described worm screw (11) is fixed with the runner (12) being provided with handle (13), another axle head of described threaded shaft (9) is arranged on lower support frame (7), described worm gear (1) is greater than worm and gear lead angle with the friction angle of worm screw (11) transmission, the worm drive friction angle of described threaded shaft (9) and tapped bore is greater than thread helix lift angle, friction angle and the worm drive friction angle scope of described worm gear (1) and worm screw (11) transmission are 8.5 ° ~ 12 °, described worm and gear lead angle scope is 3 ° ~ 5.1 °, described thread helix lift angle scope is 4.9 ° ~ 6.55 °.
2. according to claim 1 can the self-locking type aero seat that regulates of stepless height, it is characterized in that, described thread helix lift angle is 6.4 °, and worm drive friction angle is 9.99 °; The lead angle of described worm and gear 5.1 °, described worm gear (1) is 10.2 ° with the friction angle of worm screw (11) transmission.
3. according to claim 1 can the self-locking type aero seat that regulates of stepless height, it is characterized in that, the lead angle of described screw thread is 4.81 °, and worm drive friction angle is 8.83 °; The lead angle of described worm and gear is 3.81 °, and described worm gear (1) is 10.2 ° with the friction angle of worm screw (11) transmission.
4. according to claim 1 can the self-locking type aero seat that regulates of stepless height, it is characterized in that, the chair back of described chair basin (8) is rectangle, and described permanent seat (3) is four and is symmetricly set on four angles of the described rectangle chair back.
5. according to claim 1 can the self-locking type aero seat that regulates of stepless height, it is characterized in that, described cylindricality chair leg (2) is cylinder, and two described columniform chair leg (2) tops are connected with crossbeam (16).
6. according to claim 1 can the self-locking type aero seat that regulates of stepless height, it is characterized in that, described two cylindricality chair legs (2) bottom is connected with the one end on aircraft floor link span (15) respectively, the other end of described aircraft floor link span (15) is connected with support (14) one end, and the other end of described support (14) is packed on lower support frame (7).
7. according to claim 1 can the self-locking type aero seat that regulates of stepless height, it is characterized in that, described supporting seat (10) is three.
8. according to claim 1 can the self-locking type aero seat that regulates of stepless height, it is characterized in that, described threaded shaft (9) two ends are respectively equipped with tapered roller bearing (6), one of them tapered roller bearing (6) arranges the upper surface of lower support frame (7), and another tapered roller bearing (6) arranges upper support frame (4) lower surface.
9. according to claim 1 can the self-locking type aero seat that regulates of stepless height, it is characterized in that, described tapped bore is arranged on slide block (5) center.
10. according to claim 1 can the self-locking type aero seat that regulates of stepless height, it is characterized in that, described permanent seat (3) is provided with the through hole be set with cylindricality chair leg (2), is provided with plain bearing in described through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510187734.XA CN104760700B (en) | 2015-04-20 | 2015-04-20 | A kind of self-locking type aero seat of the stepless height regulation of energy |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510187734.XA CN104760700B (en) | 2015-04-20 | 2015-04-20 | A kind of self-locking type aero seat of the stepless height regulation of energy |
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| Publication Number | Publication Date |
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| CN104760700A true CN104760700A (en) | 2015-07-08 |
| CN104760700B CN104760700B (en) | 2017-10-03 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105438480A (en) * | 2015-12-14 | 2016-03-30 | 航宇救生装备有限公司 | Conveyor seat |
| CN105905303A (en) * | 2016-04-18 | 2016-08-31 | 北京安达维尔航空设备有限公司 | Locked type angle stepless adjustment aero seat |
| CN110697051A (en) * | 2019-09-25 | 2020-01-17 | 湖北航宇嘉泰飞机设备有限公司 | Height adjusting mechanism for shoulder strap outlet of aviation seat |
| CN112141344A (en) * | 2020-10-14 | 2020-12-29 | 航宇救生装备有限公司 | Crash-resistant seat with adjustable backrest angle |
| CN112224419A (en) * | 2020-09-25 | 2021-01-15 | 中国直升机设计研究所 | Helicopter seat backrest adjusting mechanism with guide groove |
| CN114148226A (en) * | 2021-12-10 | 2022-03-08 | 安徽江淮汽车集团股份有限公司 | Height adjusting system for supporting legs of child seat |
| CN114653774A (en) * | 2022-03-28 | 2022-06-24 | 许英勇 | Metal plate punch forming process |
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| CN203543724U (en) * | 2013-09-29 | 2014-04-16 | 安徽工程大学 | Automobile driver seat height regulation device |
| CN204587309U (en) * | 2015-04-20 | 2015-08-26 | 北京安达维尔航空设备有限公司 | The self-locking type aero seat that the stepless height of a kind of energy regulates |
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| GB590253A (en) * | 1945-04-12 | 1947-07-11 | Malcolm Ltd R | Improvements relating to safety devices for aircraft pilots |
| EP0656285A1 (en) * | 1993-12-03 | 1995-06-07 | Britax-Excelsior Limited | Child safety seat |
| CN203041425U (en) * | 2012-10-10 | 2013-07-10 | 唐山师范学院 | Multifunctional music stool steplessly adjustable in lifting |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105438480A (en) * | 2015-12-14 | 2016-03-30 | 航宇救生装备有限公司 | Conveyor seat |
| CN105905303A (en) * | 2016-04-18 | 2016-08-31 | 北京安达维尔航空设备有限公司 | Locked type angle stepless adjustment aero seat |
| CN110697051A (en) * | 2019-09-25 | 2020-01-17 | 湖北航宇嘉泰飞机设备有限公司 | Height adjusting mechanism for shoulder strap outlet of aviation seat |
| CN110697051B (en) * | 2019-09-25 | 2021-05-04 | 湖北航宇嘉泰飞机设备有限公司 | Height adjusting mechanism for shoulder strap outlet of aviation seat |
| CN112224419A (en) * | 2020-09-25 | 2021-01-15 | 中国直升机设计研究所 | Helicopter seat backrest adjusting mechanism with guide groove |
| CN112141344A (en) * | 2020-10-14 | 2020-12-29 | 航宇救生装备有限公司 | Crash-resistant seat with adjustable backrest angle |
| CN112141344B (en) * | 2020-10-14 | 2024-04-09 | 航宇救生装备有限公司 | Anti-crash seat with adjustable backrest angle |
| CN114148226A (en) * | 2021-12-10 | 2022-03-08 | 安徽江淮汽车集团股份有限公司 | Height adjusting system for supporting legs of child seat |
| CN114653774A (en) * | 2022-03-28 | 2022-06-24 | 许英勇 | Metal plate punch forming process |
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|---|---|
| CN104760700B (en) | 2017-10-03 |
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