CN105863425A - Outerturning door self-opening prevention device - Google Patents
Outerturning door self-opening prevention device Download PDFInfo
- Publication number
- CN105863425A CN105863425A CN201610324685.4A CN201610324685A CN105863425A CN 105863425 A CN105863425 A CN 105863425A CN 201610324685 A CN201610324685 A CN 201610324685A CN 105863425 A CN105863425 A CN 105863425A
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- Prior art keywords
- door
- cylinder
- self
- opening
- push
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/50—Power-operated mechanisms for wings using fluid-pressure actuators
- E05F15/53—Power-operated mechanisms for wings using fluid-pressure actuators for swinging wings
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
- E05Y2900/53—Application of doors, windows, wings or fittings thereof for vehicles characterised by the type of wing
- E05Y2900/531—Doors
Abstract
The invention discloses an outerturning door self-opening prevention device. The outerturning door self-opening prevention device is provided with a door body control device, a door body and a stand door post. The outerturning door self-opening prevention device is characterized in that a self-opening prevention mechanism is arranged on a supporting frame; the self-opening prevention mechanism comprises a bottom frame, a sliding board, a push board support, push rods, a self-opening prevention air cylinder, a supporting framework, a return spring and a locking nut; the lower end of the bottom frame is fixedly connected with the supporting frame, and the upper end of the bottom frame is fixedly connected with the supporting framework; the self-opening prevention air cylinder is arranged at the upper end of the supporting framework, a slide way is arranged on the side wall of the front end of the supporting framework, and the return spring is arranged on one side of the supporting framework; the upper end and the lower end of the sliding board are in sliding connection with the slide way; a limiting hole is formed in the middle of the sliding board; one side of the sliding board is fixedly connected with the lower end of the push board support; the air cylinder push rod of an execution air cylinder is connected to the interior of the limiting hole in a penetrating mode; one end of the return spring is fixedly connected with the supporting framework, and the other end of the return spring is fixedly connected with the push board support; and the end of the air cylinder push rod of the self-opening prevention air cylinder is fixedly connected with the push board support. The outerturning door self-opening prevention device has the advantages of being novel in structure, flexible in operation, high in adaptability, high in safety and the like.
Description
Technical field
The present invention relates to vehicle launch accelerator control system field, a kind of External tilting door for airport ferry push anti-self-opening door device.
Background technology
Airport ferry push is a kind of equipment that airport passenger boarding is indispensable.In order to ensure passenger the most upper and lower passenger to greatest extent, and avoiding passenger doors to occupy airport ferry push inner space, the present airport ferry push overwhelming majority all uses double External tilting door design.Double outer pendulum passenger doors are a kind of air pressure or electronic double outer pendulum structure passenger doors, owing to the structure of door is limited, adding and require in regulation that passenger doors requirement must be with pinch resistant functionality (that is: running into passenger at car door can automatically open up, prevent from crushing passenger) at closing time, structure is complicated.Vehicle is easily subject to the such environmental effects such as weather, air humidity；Passenger inside the vehicle does not follow and takes requirement besides, easily leans on passenger doors in the case of passenger is more；Last passenger doors pump itself is also a kind of frame for movement, is easily subject to self or maintains, overhauls the factor impacts such as the most thorough, it is impossible to ensureing absolute zero fault.Therefore be affected by numerous factors, all there is the phenomenon that ferry bus passenger doors under steam automatically opens up in most airports.
In ferry bus driving process, leaning on the passenger of passenger doors or without any safeguard measure near passenger doors, once door is opened, and is formed for severe safety hazards, and passenger likely throws vehicle and damages and even have influence on life security.It is obviously a kind of serious potential safety hazard that passenger doors automatically opens up.
In order to thoroughly solve this hidden danger, traditional ferry-boat car door pump machanism is studied by we, as shown in Figure 1, described door body 16 is connected with door member control apparatus through door pillar 14, swing arm 15, and described door member control apparatus includes tooth bar 1, contact switch 2, cam 3, gear 4, bracket 5, sensing cylinder 6, performs the composition such as cylinder 7, control cable 8, emergency valve 9, door pump magnetic valve 10, tooth bar directive wheel 11, cylinder push-rod 13, gas circuit 18.After described door pillar passes bracket, its upper end is serially connected with gear 4 and cam 3, and the extension bar end of described execution cylinder 7 is provided with tooth bar 1, and the gear 4 that described tooth bar side concatenates with door pillar upper end is meshed, and opposite side is inconsistent with tooth bar directive wheel 11.Described tooth bar directive wheel 11 is serially connected on support, and described cantilever tip is provided with contact switch 2, and described contact switch 2 is corresponding with cam 3, is beneficial to that door body is opened the limit and carries out spacing.Described sensing cylinder 6 is connected with performing cylinder 7 through gas circuit 18, and described sensing cylinder 6 is connected with door pump magnetic valve 10 through controlling cable.Described door pump magnetic valve is connected with source of the gas through emergency valve 9, rotates when performing cylinder 7 motion driven gear 4, drives door pillar 14 to rotate, and swing arm 15 promotes door body 16 to anticipate centered by door pillar to rotate, thus realizes the switch of door body.When needing to open passenger doors, cylinder push-rod 13 is retracted, and band carry-over bar 1 bounces back, and rotates counterclockwise, passenger doors opened under the effect of gear 4, otherwise then closes passenger doors.In the closing process of door body 16, if running into obstacle, the draught head performing cylinder 7 piston two ends will raise, thus triggers sensing cylinder 6, feeds back to a pump magnetic valve 10 by controlling cable 8, thus opens car door.This structure is relative complex, is simultaneously achieved the pinch resistant functionality of door.But vehicle is in use, owing to being easily subject to the impact of the factors such as maintenance status and the said external weather conditions of vehicle, easily vehicle is formed erroneous judgement, cause door body to occur being opened accidentally.
In order to thoroughly solve this problem, we are by being analyzed conventional door pump and proposing multiple way, such as lock the number of ways such as door-hinge, lock cylinder, cutting-off controlling power supply to improve, effect is the most undesirable, does not also have a kind of technical scheme can conscientiously solve door body from the Substantial technical problem opened.
Summary of the invention
Present invention aim to address above-mentioned the deficiencies in the prior art, it is provided that a kind of novel structure, flexible operation, strong adaptability, the External tilting door anti-self-opening door device of high safety.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of External tilting door anti-self-opening door device, it is provided with a member control apparatus, door body and door upright column structure, described door member control apparatus includes tooth bar, contact switch, cam, gear, bracket, sensing cylinder, performs cylinder, control cable, emergency valve, door pump magnetic valve, tooth bar directive wheel, swing arm, gas circuit and control system, it is characterised in that bracket is provided with anti-from open electromagnetic valve and anti-from opening mechanism；Described anti-include underframe, slide plate, push pedal support, push rod, anti-from opening cylinder, support frame, caging bolt, return spring and locking nut from opening mechanism, described door pump magnetic valve, sensing cylinder, perform cylinder, contact switch and anti-from opening cylinder respectively through control system control；Described underframe lower end is fixing with bracket to be connected, and underframe upper end is fixing with support frame to be connected；Described support frame is fixed with anti-self-opening door cylinder, and front end side wall is provided with slideway, and side is provided with return spring；The upper and lower two ends of described slide plate are slidably connected with slideway respectively；Two spacing holes it are provided with in the middle part of described slide plate；Described slide plate side is fixing with push pedal pedestal lower end to be connected；The cylinder push-rod cross-under of described execution cylinder is in the spacing hole of slide plate；Described return spring one end is fixing with support frame to be connected, and the other end is fixing with push pedal support to be connected；The cylinder push-rod end of described anti-self-opening door cylinder is fixing with push pedal support to be connected. and it is beneficial to by the spacing empty tooth bar end movement that limits of slide plate, thus prevents passengers to cause door body from opening in the case of unwitting, it is ensured that the safety of passengers.
The spacing hole of slide plate of the present invention is to be made up of the large through-hole being connected and small through hole, and the diameter of described large through-hole is more than the diameter of tooth bar, to reach the effect avoiding damaging tooth bar；The diameter of described small through hole is more than the diameter of the cylinder push-rod performing cylinder less than the diameter of tooth bar, it is beneficial to after door body is closed, anti-from the push rod release opened in cylinder, slide plate is made to skid off along the slideway level of support frame, the expansion link making execution cylinder is stuck in small through hole, and then control the motion of tooth bar, door body is made to open, thus protect the safety of passengers, when in case of emergency needing to open door body, cut off and venting system source of the gas by emergency valve, make push rod under the effect of return spring, slide plate is return, when the large through-hole in spacing hole and tooth bar concentric, tooth bar i.e. relieves from the restriction opened, driven gear rotates, such that it is able to open door body smoothly, restriction improves safe application performance.
The present invention can prevent from open electromagnetic valve, to reach to control the reciprocating motion of slide plate by controlling anti-self-opening door cylinder described anti-being provided with in the gas circuit opening cylinder.
The present invention is provided with graded time-lag relay K1 on the control circuit of described door pump magnetic valve, to reach to accelerate the effect that car door is opened smoothly.
The present invention also prevents being provided with graded time-lag relay K2 on the closed circuit of open electromagnetic valve described, it is beneficial at closing time, perform to close the door action by door pump magnetic valve, under the effect of time-delay relay K2, anti-action after open electromagnetic valve, make door body close to put in place, by time-delay relay K2 by time proper extension, further up to the performance of safe handling.
Slide plate of the present invention uses tin bronze plate etc. to have self antifriction material and makes, to reach wear-resisting effect.
Due to the fact that employing said structure, there is the advantages such as novel structure, flexible operation, strong adaptability, high safety.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art.
Fig. 2 is the structural representation of the present invention.
Fig. 3 is the anti-perspective view from opening mechanism in the present invention.
Fig. 4 is the right view of Fig. 3.
Fig. 5 is that the present invention is anti-anti-from the structural representation opened from opening mechanism.
Fig. 6 is that the present invention is anti-anti-from unwinding the structural representation removed from opening mechanism.
Fig. 7 is that manual mode of the present invention is anti-from opening electrical schematic diagram.
Fig. 8 is that automatic mode of the present invention is anti-from opening electrical schematic diagram.
Reference: tooth bar 1；Contact switch 2；Cam 3；Gear 4；Bracket 5；Sensing cylinder 6；Perform cylinder 7；Control cable 8；Emergency valve 9；Door pump magnetic valve 10；Tooth bar directive wheel 11；Bolt 12；Cylinder push-rod 13；Door pillar 14；Swing arm 15；Door body 16；Door glass 17；Gas circuit 18；Anti-from open electromagnetic valve 19；Anti-from opening mechanism 20；Underframe 21；Slide plate 22；Push pedal support 23；Push rod 24；Release position pore 25；Locking position pore 26；Anti-from opening cylinder 27；Support frame 28；Caging bolt 29；Locking nut 30；Spring pedestal 31；Return spring 32.
Detailed description of the invention
The present invention is further described below in conjunction with the accompanying drawings:
nullSuch as accompanying drawing 2、3、4、Shown in 5，A kind of External tilting door anti-self-opening door device，It is provided with a member control apparatus、Door body 16 and door pillar 14，Described door member control apparatus includes tooth bar 1、Contact switch 2、Cam 3、Gear 4、Bracket 5、Sensing cylinder 6、Perform cylinder 7、Control cable 8、Emergency valve 9、Door pump magnetic valve 10、Tooth bar directive wheel 11、Swing arm 15、The attachment structure of gas circuit 18 and control system is same as the prior art，This does not repeats，It is characterized in that be positioned on bracket 5 prevents from open electromagnetic valve 19 and prevent constituting from opening mechanism 20 and control system，Described anti-include underframe 21 from opening mechanism、Slide plate 22、Push pedal support 23、Push rod 24、Anti-from opening cylinder 27、Support frame 29、Return spring 32 and locking nut 30 are constituted，Described door pump magnetic valve 10、Sensing cylinder 6、Perform cylinder 7、Contact switch 2 opens cylinder 27 respectively through control system control certainly with anti-，Described underframe 21 lower end is fixing with bracket 5 to be connected，Underframe 21 upper end is fixing with support frame 29 to be connected，Described support frame 29 upper end is provided with anti-self-opening door cylinder 27，Front end side wall is provided with slideway，Side is provided with return spring 32，Described slide plate about 22 two ends are slidably connected with slideway respectively，It is provided with spacing hole in the middle part of described slide plate 22，Described slide plate 22 side is fixing with push pedal support 23 lower end to be connected，Cylinder push-rod 13 cross-under of described execution cylinder 7 is in spacing hole，Described return spring 32 one end is fixing with support frame 29 to be connected，The other end is fixing with push pedal support 23 to be connected，The expansion link end of described anti-self-opening door cylinder 27 is connected through locking nut 30 and push pedal support 23 is fixing，It is beneficial to after door body is closed (as shown in Figure 5)，The anti-push rod 24 certainly opened in cylinder 27 is released，Slide plate 22 is driven to skid off along the slideway level of support frame by push pedal support 23，The tooth bar 1 that the aperture of slide plate 22 does not makes execution cylinder 7 drive is positioned in slide plate 22 small through hole，Thus limit the motion of tooth bar 22，Door body is made to open，Protect the safety of passengers.When opening car door or in case of emergency needing to open the door (as shown in Figure 6), cut off and venting system source of the gas by emergency valve 9, under the effect of return spring 32, making slide plate 22 return to macropore position, push pedal support 23 drives push rod 24 by anti-from opening cylinder 27 return simultaneously.When the spacing aerial large through-hole of slide block 22 is with tooth bar concentric, tooth bar i.e. relieves movement limit, and driven gear rotates, such that it is able to open door body smoothly, limits and improves safe application performance.
nullSpacing hole of the present invention is to be made up of the slide plate 22 being connected with push rod 24 by push pedal support 23，The position punching diameter that releases of described slide plate 22 is more than the diameter of tooth bar 1，To reach the effect avoiding damaging tooth bar，The locking position diameter of described slide plate 22 is more than the diameter of the cylinder push-rod 13 performing cylinder 7 less than the diameter of tooth bar 1，It is beneficial to after door body 16 is closed，The anti-push rod 24 certainly opened in cylinder 27 is released，Slide plate 22 is made to skid off along the slideway level of support frame 29，The cylinder push-rod 13 making execution cylinder 7 is stuck in slide plate 22 locking position，And then control the motion of tooth bar 1，Door body 16 is made to open，Thus protect the safety of passengers，When in case of emergency needing to open door body 16，Cut off and venting system source of the gas by emergency valve，Make push rod 24 under the effect of return spring 32，Slide plate 22 is return，When the releasing position in the spacing hole of slide plate 22 and tooth bar 1 concentric，Tooth bar 1 i.e. relieves anti-from the restriction opened，Driven gear 4 rotates，Such that it is able to open door body 16 smoothly，Substantially increase safe application performance.
The present invention can prevent from open electromagnetic valve 19 described anti-being provided with in the gas circuit opening cylinder 27, it is beneficial to avoid anti-generation from the work of opening mechanism opposite house pump magnetic valve 10 to affect, when opening the door, make to prevent being first turned on from open electromagnetic valve 19, then door pump magnetic valve 10 is opened again, further ensures the smooth unlatching of door body 16.
The present invention can be provided with graded time-lag relay K1 on the control circuit of described door pump magnetic valve 10, to reach to accelerate the effect that car door is opened smoothly.
The present invention also can prevent being provided with graded time-lag relay K2 on the closed circuit of open electromagnetic valve 19 described, it is beneficial at closing time, perform to close the door action by door pump magnetic valve, under the effect of time-delay relay K2, anti-action after open electromagnetic valve, make door body close to put in place, by time-delay relay K2 by time proper extension, further up to the performance of safe handling.
Slide plate 22 of the present invention uses tin bronze plate to make, to reach wear-resisting effect.
When the present invention uses, anti-for opposite house pump control effectively from opening mechanism structure, devises two set control modes and closes to control door body:
One, manual mode: i.e. closing the door and manually control button in door opening process, locks from opening mechanism passenger doors is anti-and unlocks.Control mode is simple and convenient, it is only necessary to increase button on instrument desk.After closing of the door, release the button from opening mechanism by anti-；Before opening the door, first pressing car door opening button by anti-after unblock again from opening mechanism X button, schematic diagram is shown in such as Fig. 7.
Two, automatic mode: anti-is to be realized by passenger doors button from opening mechanism.In order to prevent producing impact from the work of opening mechanism opposite house pump machanism, therefore controlling to must take in circuit design the switching sequence of magnetic valve.During enabling, preventing must being first turned on from open electromagnetic valve, then door pump magnetic valve is opened, and door body is opened smoothly.In order to ensure that it performs smoothly, increase a graded time-lag relay K1 at the door pump magnetic valve circuit opened the door, in order to increase car door opening speed, the anti-operating rate from open electromagnetic valve can be adjusted, 2Sec is typically set, and K1 delay time is shortened as far as possible.Close a process in contrast, on the control circuit that open electromagnetic valve closes, increase graded time-lag relay K2 at one closing the anti-of gate transmission line.At closing time, door pump magnetic valve is first carried out action of closing the door, under the effect of time-delay relay K2, and anti-action after open electromagnetic valve.Putting in place to ensure that door body is closed, the delay time of K2 relay can be preferred than time used increase about the 10Sec that closes the door with proper extension.Automatic mode is anti-from opening mechanism principle as shown in Figure 8.
Embodiment 1: as shown in accompanying drawing 2,3,4,5,6; two fan door body of airport ferry push are equipped with a member control apparatus and anti-from opening mechanism; door pillar is controlled with anti-from opening mechanism by door member control apparatus; make door body safety on the premise of passenger does not has any safeguard measure take, do not result in the passenger relying in door body and door body can be made to automatically open up；
nullWhen opening the door such as Fig. 5，Click on enabling control button，Prevent being first turned on from open electromagnetic valve 19，Then door pump magnetic valve 9 is opened，Door body opening speed is accelerated by graded time-lag relay K1，Now，Perform cylinder 7 action，Cylinder push-rod 13 is driven to retract，Band carry-over bar 1 bounces back，Door pillar rotates under the effect of gear 4 counterclockwise，Passenger doors is opened，When door body 16 is to be closed，If running into obstacle，The draught head performing cylinder 7 piston two ends will raise，Thus trigger sensing cylinder 6，A pump magnetic valve 10 is fed back to by controlling cable 8，Thus open car door，After door body is again switched off，The anti-push rod 24 certainly opened in cylinder 27 is released，Slide plate 22 skids off along the slideway level of support frame 29，The cylinder push-rod 13 making execution cylinder 7 is stuck in slide plate 22 locking position，And then control the motion of tooth bar 1，Door body 16 is made to open，Solve door body from the potential safety hazard opened，Thus protect the safety of passengers，When in case of emergency needing to open door body 16，Cut off and venting system source of the gas by emergency valve，Make push rod 24 under the effect of return spring 32，Slide plate 22 is return，When the releasing position in the spacing hole of slide plate 22 and tooth bar 1 concentric，Tooth bar 1 i.e. relieves anti-from the restriction opened，Driven gear 4 rotates，Such that it is able to open door body 16 smoothly，Substantially increase safe application performance.
Due to the fact that employing said structure, there is the advantages such as novel structure, flexible operation, strong adaptability, high safety.
Claims (6)
- null1. an External tilting door anti-self-opening door device，It is provided with a member control apparatus、Door body and door pillar，Described door member control apparatus includes bracket、Swing arm、Emergency valve、Door pump magnetic valve、Sensing cylinder、Perform cylinder、Control cable、Gas circuit、Tooth bar、Gear、Tooth bar directive wheel、Cam、Contact switch and control system，It is characterized in that bracket is provided with anti-from opening mechanism，Described anti-include underframe from opening mechanism、Slide plate、Push pedal support、Push rod、Anti-from opening cylinder、Support frame、Return spring and locking nut，Described door pump magnetic valve、Sensing cylinder、Perform cylinder、Contact switch opens cylinder respectively through control system control certainly with anti-，Described underframe lower end is fixing with bracket to be connected，Underframe upper end is fixing with support frame to be connected，Described support frame upper end is provided with anti-self-opening door cylinder，Front end side wall is provided with slideway，Side is provided with return spring，The upper and lower two ends of described slide plate are slidably connected with slideway respectively，It is provided with spacing hole in the middle part of described slide plate， Described slide plate side is fixing with push pedal pedestal lower end to be connected, the cylinder push-rod cross-under of described execution cylinder is in spacing hole, described return spring one end is fixing with support frame to be connected, the other end is fixing with push pedal support to be connected, and the cylinder push-rod end of described anti-self-opening door cylinder is fixing with push pedal support to be connected.
- A kind of External tilting door anti-self-opening door device the most according to claim 1, it is characterized in that described spacing hole is to be made up of the large through-hole being connected and small through hole, the diameter of described large through-hole is more than the diameter of the cylinder push-rod performing cylinder more than the diameter of tooth bar, the diameter of described small through hole less than the diameter of tooth bar.
- A kind of External tilting door anti-self-opening door device the most according to claim 1 and 2, it is characterised in that described anti-being provided with from the gas circuit opening cylinder is prevented from open electromagnetic valve.
- A kind of External tilting door anti-self-opening door device the most according to claim 3, it is characterised in that the control circuit of described door pump magnetic valve is provided with graded time-lag relay K1, to reach to accelerate the effect that car door is opened smoothly.
- A kind of External tilting door anti-self-opening door device the most according to claim 4, it is characterised in that the described anti-closed circuit from open electromagnetic valve is provided with graded time-lag relay K2.
- A kind of External tilting door anti-self-opening door device the most according to claim 1, it is characterised in that described slide plate can use tin bronze plate to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610324685.4A CN105863425B (en) | 2016-05-13 | 2016-05-13 | Self-opening preventing device for outward swinging door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610324685.4A CN105863425B (en) | 2016-05-13 | 2016-05-13 | Self-opening preventing device for outward swinging door |
Publications (2)
| Publication Number | Publication Date |
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| CN105863425A true CN105863425A (en) | 2016-08-17 |
| CN105863425B CN105863425B (en) | 2023-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610324685.4A Active CN105863425B (en) | 2016-05-13 | 2016-05-13 | Self-opening preventing device for outward swinging door |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106193871A (en) * | 2016-08-26 | 2016-12-07 | 林会明 | A kind of rack pinion and chaindriven Pneumatic plug door |
| CN112092589A (en) * | 2019-06-18 | 2020-12-18 | 现代自动车株式会社 | Structure for providing separation strength of relatively sliding door |
| CN112302466A (en) * | 2019-07-26 | 2021-02-02 | 浙江吉智新能源汽车科技有限公司 | Vehicle door opening and closing device and vehicle door opening and closing method |
| CN114248275A (en) * | 2021-12-01 | 2022-03-29 | 广东恒鑫智能装备股份有限公司 | Door opening mechanism of dish washing machine |
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| CN112092589A (en) * | 2019-06-18 | 2020-12-18 | 现代自动车株式会社 | Structure for providing separation strength of relatively sliding door |
| CN112092589B (en) * | 2019-06-18 | 2024-04-05 | 现代自动车株式会社 | Structure for providing separation strength of relative sliding door |
| CN112302466A (en) * | 2019-07-26 | 2021-02-02 | 浙江吉智新能源汽车科技有限公司 | Vehicle door opening and closing device and vehicle door opening and closing method |
| CN114248275A (en) * | 2021-12-01 | 2022-03-29 | 广东恒鑫智能装备股份有限公司 | Door opening mechanism of dish washing machine |
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