CN103132826A - Locking mechanism of cockpit door - Google Patents
Locking mechanism of cockpit door Download PDFInfo
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- CN103132826A CN103132826A CN2013100496248A CN201310049624A CN103132826A CN 103132826 A CN103132826 A CN 103132826A CN 2013100496248 A CN2013100496248 A CN 2013100496248A CN 201310049624 A CN201310049624 A CN 201310049624A CN 103132826 A CN103132826 A CN 103132826A
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- lock
- locking mechanism
- connecting rod
- locking
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Abstract
The invention provides a locking mechanism of a cockpit door. The locking mechanism comprises a locking base (10) fixedly arranged on a cockpit door frame, a locking portion (20) fixedly arranged on the cockpit door and matched with the locking base (10) to lock or unlock the locking mechanism, a withdrawal flexible shaft (30) with the first end connected onto the locking portion (20), a locking disk (40) fixedly arranged on the cockpit door, a driving portion (50) arranged on the locking disk (40) and connected at the second end of the withdrawal flexible shaft (30) for driving the locking portion (20) to unlock the locking mechanism, and a control portion (60) arranged on the locking disk (40) and provided with a first position for preventing the driving portion (50) from driving the withdrawal flexible shaft (30) and a second position for unlocking preventing. By adopting the locking mechanism, misoperation of the working staff on the locking mechanism of the cockpit door in the airplane flying process can be effectively avoided, and safe airplane flying is ensured.
Description
Technical field
The present invention relates to aviation machine and make the field, in particular to a kind of locking mechanism of cockpit door.
Background technology
The locking mechanism of cockpit door is the come in and go out important operating mechanism of driving cabin of aircrew, is arranged in driving cabin doorframe skeleton and cockpit door, is used for locking cockpit door when aircraft flight, guarantees that aircraft flight is in a safe condition.
Existing locking mechanism is general directly to be handled by handle etc., in the aircraft flight process, if the staff has carried out maloperation to locking mechanism, probably can cause aircraft to open awing, and the flight safety of aircraft is caused adverse effect.
Summary of the invention
The present invention proposes a kind of locking mechanism of cockpit door, can effectively prevent the maloperation of staff to the locking mechanism of cockpit door in the aircraft flight process, guarantee the safe flight of aircraft.
in order to achieve the above object, technical scheme of the present invention is achieved in that lock is fixedly installed on the driving cabin doorframe, the sticking department of locking or release locking mechanism of matching with lock is fixedly installed on cockpit door, then lock collar is fixedly installed on cockpit door, drive division is arranged on lock collar, and realize being connected between drive division and sticking department by the pull flexible axle, then one control part is set on lock collar, this control part is used for controlling drive division, drive division is in drives the state of sticking department and lock release or be in the state that can not drive sticking department and lock release.When the aircraft normal flight, in order to prevent staff's maloperation, open because of carelessness cockpit door, at this moment, control part is in stop drive division to drive the primary importance of pull flexible axle release, even the staff has carried out maloperation to drive division like this, but due to the interception of control part, drive division can't drive sticking department and lock release, the cockpit door state that keeps Locked.When needing to open the operations such as cockpit door has overhauled after aircraft is completed aerial mission, can operate control part, it is in removes the second place place that stops, can operate drive division this moment, make drive division drive the pull flexible axle, the action of drive sticking department realizes unlocking operation, can open cockpit door.Existence due to control part, make the locking mechanism of cockpit door of the present invention, must can carry out the opening operation of hatch door through special controlling organization, therefore can effectively prevent the maloperation of staff to the locking mechanism of cockpit door in the aircraft flight process, guarantee the safe flight of aircraft.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, the below will do one to the accompanying drawing of required use in embodiment or description of the Prior Art and introduce simply, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 shows the structural representation of the locking mechanism of driving cabin according to an embodiment of the invention;
Fig. 2 shows the left TV structure schematic diagram according to the locking mechanism of the driving cabin of the embodiment of Fig. 1;
Fig. 3 shows B according to the locking mechanism of the driving cabin of the embodiment of Fig. 1 to structural representation;
Structural representation when Fig. 4 shows the sticking department of the locking mechanism of driving cabin according to an embodiment of the invention and lock and is in the lock state;
Perspective view when Fig. 5 shows the sticking department of the locking mechanism of driving cabin according to an embodiment of the invention and lock and is in released state;
Fig. 6 shows the lock collar of the locking mechanism of driving cabin and the package assembly schematic diagram of drive division according to an embodiment of the invention;
Fig. 7 shows the rear elevation according to the package assembly of the lock collar of the embodiment of Fig. 6 and drive division;
Fig. 8 shows the top view according to the package assembly of the lock collar of the embodiment of Fig. 6 and drive division;
Fig. 9 shows the upward view according to the package assembly of the lock collar of the embodiment of Fig. 6 and drive division;
Figure 10 show according to the A-A of the package assembly of the lock collar of the embodiment of Fig. 8 and drive division to structural representation;
Figure 11 shows the structural representation of the pull flexible axle of the locking mechanism of driving cabin according to an embodiment of the invention; And
Figure 12 shows and partly cuts open schematic diagram according to the pull flexible axle of the embodiment of Figure 11.
The specific embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
As shown in Figure 1 to Figure 3, according to embodiments of the invention, the locking mechanism of cockpit door comprises lock 10, sticking department 20, pull flexible axle 30, lock collar 40, drive division 50 and control part 60.
In conjunction with referring to Fig. 4 and shown in Figure 5, lock 10 is fixedly installed on the driving cabin doorframe.Lock 10 comprises the holder that is fixedly installed on the driving cabin doorframe and the lock 11 that is fixedly installed on holder, and lock 11 coordinates this locking mechanism of locking with sticking department 20.Holder comprises two fixed heads that be arranged in parallel and is fixedly connected on two junction plates between fixed head, and lock 11 is fixedly installed in two formed installing spaces of fixed head.Frictional force when matching with sticking department 20 in order to reduce lock 10, sensitivity when guaranteeing the locking mechanism release, also be arranged with rotationally rolling sleeve 12 outside lock 11, when coordinating between lock 11 and sticking department 20, rotation by rolling sleeve 12 can be converted to rolling friction with the sliding friction between lock 11 and sticking department 20, therefore significantly reduced the frictional force when lock 10 matches with sticking department 20, reduce the wearing and tearing in both courses of work, extended the application life of locking mechanism.In addition, rolling sleeve 12 can be for removably being set in outside lock 11, and so, if when causing rolling sleeve 12 excessive wear due to long-term use, just can change a new rolling sleeve, simple to operate, easy to use, cost is lower.
This programme adopts pull flexible axle 30 as the coupling part, has overcome the problem that the stiff rod that causes for many curved surfaces because of the aircraft handling hatch door is difficult for enforcement, and structure is more flexible, better adaptability.
Lock box 21 is fixedly installed on cockpit door, has container cavity on it.Latch hook 22 is arranged in container cavity rotationally by rotating shaft, has the hook section that coordinates the locking locking mechanism with lock 10 on it.In the present embodiment, the lock slots 221 of hook section for matching with rolling sleeve 12 of latch hook 22, rolling sleeve 12 can enter in this lock slots 221, realizes the lock-out state between lock 10 and sticking department 20.
Also be fixedly installed extension spring 23 between latch hook 22 and lock box 40, extension spring 23 has and pulls latch hook 22 to make latch hook 22 and lock 10 be in the trend of open mode.The first end of extension spring 23 is fixedly connected on latch hook 22, the second end is fixedly connected on lock box 21, in the situation that be not subjected to extraneous the obstruction, extension spring 23 can pull latch hook 22 to rotate in the raw the time, makes lock slots 221 openings of latch hook 22 toward the outer side, so that the lock 11 that is arranged in lock slots 221 can break away from from latch hook 22, perhaps when the locking mechanism locking, be convenient to lock 11 and enter in lock slots 221 from the opening part of lock slots 221, complete lock out action.
Be under normal conditions locking states in order to make between latch hook 22 and lock 10, need increase by can limit under normal conditions the position limiting structure of the rotation of latch hook 22, this position limiting structure can prevent that under normal conditions latch hook 22 from rotating and the lock 11 of lock 10 is broken away from from it, is in locking states thereby make under the locking mechanism normality.In the present embodiment, the side near pull flexible axle 30 in the container cavity of lock box 21 is provided with chute 212, and above-mentioned position limiting structure comprises the stop block 24 that is arranged in this chute 212.Stop block 24 is mounted slidably along chute 212, and is connected with the first end of pull flexible axle 30, has to stretch out chute 212 backstop latch hooks 22 and make the second place that in the primary importance of latch hook 22 and lock 10 lockings and retraction chute 212, latch hook 22 and lock 10 is opened.
In the present embodiment, stop block 24 backstops prevent that latch hook 22 from laterally rotating on the sidewall of the latch hook 22 of lock slots 221 1 sides, thereby prevent lock 11 from the interior disengaging of lock slots 221, make the locking mechanism state that keeps Locked.When needs are opened locking mechanism, can handle pull flexible axle 30, make pull flexible axle 30 pull stop block 24 to slide along chute 212, in retraction chute 212, this moment, stop block 24 did not play locking action to latch hook 22, and latch hook 22 can rotate, and the opening that makes the lock slots 221 on it toward the outer side, lock 11 can take out from latch hook 22, locking mechanism contact locking states.
Preferably, also has spacing preiection 211 on lock box 21, spacing preiection 211 backstops are outside latch hook 22, limit the turned position of latch hook 22, when latch hook 22 is shown in an open position, stop block 24 is pressed in chute 212, can because the pulling force effect that is subject to extension spring 23 departs from larger position, can not make latch hook 22 and stop block 24 and lock 11 all have cooperation position preferably.
Also be provided with the microswitch 26 that matches with stop block 24 in lock box 21, microswitch 26 is connected to warning device, has the step that when retraction, microswitch 26 is triggered on stop block 24, the cohesive position of step is provided with spigot surface, be convenient to stop block 24 with respect to microswitch 26 motions, and can be subject to stopping of microswitch 26.When locking mechanism is worked, when operation pull flexible axle 30 pulls stop block 24, in stop block 24 retraction chutes 212, the step that be positioned at stop block 24 front sides this moment contacts with microswitch 26, trigger microswitch 26, warning device gives the alarm, and the expression cockpit door is in opening.When stretching out under the elastic force effect of stop block 24 at elastic recoil spare 25, microswitch 26 disconnects, and warning device cuts out.
In conjunction with referring to Figure 11 and shown in Figure 12, the first end of pull flexible axle 30 is connected on sticking department 20, is used for controlling sticking department 20 motions, to realize the action of locking or release locking mechanism.Pull flexible axle 30 comprises wire rope 31, is set in the outer wearing bush 32 of wire rope 31 and the retainer 33 that is arranged on wearing bush 32 two ends, and retainer 33 backstops are outside lock box 21.First end at pull flexible axle 30 is provided with connector 34, and this connector 34 is connected with drive division 50.The second end at pull flexible axle 30 is provided with screw rod, and pull flexible axle 30 is by being spirally connected between this screw rod and stop block 24.
In conjunction with extremely shown in Figure 10 referring to Fig. 4, in the present embodiment, lock collar 40 comprises interior lock collar 41 and outer lock collar 42, is fixedly connected with between interior lock collar 41 and outer lock collar 42.Lock collar 40 is divided into inside and outside two parts, not only more is convenient to the processing of lock collar 40, also can satisfy better lock collar 40 and coordinate with installation between drive division 50 each parts.Lock collar 40 is fixedly installed on cockpit door, is used to drive division 50 and control part 60 that installation site and structure are provided, and makes drive division 50 and control part 60 can realize coordinating, and making can be because cockpit door is opened in maloperation in the aircraft course of work.
In the present embodiment, handle 51 is the external pulling type swing arm, and handle 51 is arranged on lock collar 40 rotationally by rotating shaft, when handle 51 is operated, can first bring in and make its second end to the direction opposite with first end motion by operating it, thereby pull pull flexible axle 30 to play motion with one.Preferably, the plane, movement locus place of second connecting rod mechanism 53 is perpendicular to the plane, movement locus place of handle 51, the motion perpendicular to cockpit door of handle 51 can be converted to the motion that is parallel to cockpit door of second connecting rod mechanism 53, so more be convenient to handle 51 is operated.In fact, the motion that the movement locus of handle 51 also is set to parallel with cockpit door is also feasible, its set-up mode can for multiple, can drive to the operation of handle 51 stop block 24 motions that pull flexible axle 30 drives sticking department 20 as long as can guarantee.
In the present embodiment, the link position place of first connecting rod mechanism 52 and second connecting rod mechanism 53 is provided with return mechanism 54, and the first end of second connecting rod mechanism 53 is connected with return mechanism 54.Return mechanism 54 comprises limit base 541 and the pull bar 542 that is fixedly installed on lock collar 40, be provided with installing hole on limit base 541, pull bar 542 is slidably disposed in installing hole, the first end end of second connecting rod mechanism 53 is connected to pull bar 542, pull bar 542 between limit base 541 and second connecting rod mechanism 53 is outside equipped with return spring 543, and this return spring 543 can be used for driving handle 51 and reset.
In the present embodiment, also be provided with lock core 55 between handle 51 and lock collar 40, this lock core 55 is locked in handle 51 it can't be moved.Obviously, lock core 55 is equivalent to top control part here.When needs carry out the release action, can open lock core, handle 51 and lock collar 40 are separated, restriction is not received in handle 51 motions.When the needs locking mechanism keeps Locked state, can rotational lock core, handle 51 and lock collar 40 are locked in together, handle 51 can't move, and can't carry out the release action of locking mechanism.
First connecting rod mechanism 52 is the connecting rod between second end that is connected to handle 51 and second connecting rod mechanism 53 here, be hinged between this connecting rod and second connecting rod 53 and handle 51, its role is to motion with handle 51 and pass to second connecting rod mechanism 53, and drive 53 pairs of handles 51 of second connecting rod mechanism and move together, the pull flexible axle 30 that is automatically connected in second connecting rod mechanism 53 of band moves thus.
Second connecting rod mechanism 53 comprises rotating shaft 531 here, is arranged on the swing arm in rotating shaft 531 and be connected to connecting rod 532 in swing arm rotationally.Be provided with connecting rod 532 at the two ends of swing arm, hinged between the connecting rod 532 of close handle 51 positions of swing arm and first connecting rod mechanism 52, the motion of handle 51 is passed to swing arm.The connecting rod 532 that is connected with pull flexible axle 30 is positioned at the other end of the connecting rod 532 place ends that are connected with first connecting rod mechanism 52, guarantees that both direction of motion is opposite, thereby makes handle 51 can pull pull flexible axle 30 to move together when action.Certainly, if handle 51, first connecting rod structure 52 and the relative position relation of second connecting rod mechanism 53 are adjusted, be also to make the direction of motion of link of handle 51 identical with the direction of motion of the connecting rod 532 that is connected to pull flexible axle 30.
In the swing arm of second connecting rod mechanism 53, a plurality of connecting rods 532 can be set, with on the connected connecting rod 532 of pull flexible axle 30 all can not be connected a pull bar 542, and the elastic recoil spares such as spring are set on pull bar 542, make handle automatically reply original position when not stressing.
From foregoing description as can be known, according to technical scheme of the present invention, the cockpit door locking mechanism can normally be locked hatch door, has to prevent awing because being not intended to operate the ability of opening.The cockpit door locking mechanism has 2 locking functions, can guarantee that cockpit door has enough locking intensity.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment, the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. the locking mechanism of a cockpit door, is characterized in that, comprising:
Lock (10) is fixedly installed on the driving cabin doorframe;
Sticking department (20) is fixedly installed on cockpit door, coordinates locking or the described locking mechanism of release with described lock (10);
Pull flexible axle (30), first end are connected on described sticking department (20);
Lock collar (40) is fixedly installed on described cockpit door;
Drive division (50) is arranged on described lock collar (40), and is connected to the second end of described pull flexible axle (30), drives the described locking mechanism of described sticking department (20) release;
Control part (60) is arranged on described lock collar (40), has the primary importance that stops described drive division (50) to drive described pull flexible axle (30) and removes the second place that stops.
2. locking mechanism according to claim 1, is characterized in that, described sticking department (20) comprising:
Lock box (21) has container cavity on it;
Latch hook (22) is arranged in container cavity rotationally, has the hook section that coordinates the described locking mechanism of locking with described lock (10) on it;
Extension spring (23), first end are fixedly connected on described latch hook (22), and the second end is fixedly connected on described lock box (21), have to pull described latch hook (22) to make described latch hook (22) and described lock (10) be in the trend of open mode;
Stop block (24), be mounted slidably along the chute (212) in the container cavity that is arranged on described lock box (21), be connected with the first end of described pull flexible axle (30), have and stretch out the described latch hook of described chute (212) backstop (22) and make the second place that in the primary importance of described latch hook (22) and described lock (10) locking and the described chute (212) of retracting, described latch hook (22) and described lock (10) is opened;
Elastic recoil spare (25) is arranged between described stop block (24) and described lock box (21), drives described stop block (24) and stretches out described chute (212).
3. locking mechanism according to claim 2, it is characterized in that, has lock (11) on described lock (10), the outer rolling sleeve (12) that is arranged with of described lock (11), have the lock slots (221) that coordinates with described rolling sleeve (12) on described latch hook (22), described stop block (24) backstop is on latch hook (22) sidewall of described lock slots (221) one sides.
4. locking mechanism according to claim 2, it is characterized in that, also has spacing preiection (211) on described lock box (21), described spacing preiection (211) backstop is outside described latch hook (22), limit the turned position of described latch hook (22), described latch hook (22) is pressed on described stop block (24) in described chute when being shown in an open position.
5. locking mechanism according to claim 2, it is characterized in that, described pull flexible axle (30) comprises wire rope (31), is set in the outer wearing bush (32) of described wire rope (31) and the retainer (33) that is arranged on described wearing bush (32) two ends, and described retainer (33) backstop is outside described lock box (21).
6. locking mechanism according to claim 2, it is characterized in that, also be provided with the microswitch (26) that matches with described stop block (24) in described lock box (21), described microswitch (26) is connected to warning device, have the step that when retraction, described microswitch (26) is triggered on described stop block (24), the cohesive position of described step is provided with spigot surface.
7. the described locking mechanism of any one according to claim 1 to 6, it is characterized in that, described drive division (50) comprises the handle (51) that is arranged on described lock collar (40), described handle (51) is rotatably connected on described lock collar (40), the first end of described handle (51) is connected with described control part (60), and the second end of described handle (51) is connected with the second end of described pull flexible axle (30).
8. locking mechanism according to claim 7, it is characterized in that, be connected with first connecting rod mechanism (52) and second connecting rod mechanism (53) between the second end of described handle (51) and described pull flexible axle (30), the first end of described first connecting rod mechanism (52) is connected on described handle (51), the second end is connected to the first end of described second connecting rod mechanism (53), and the second end of described second connecting rod mechanism (53) is connected to the second end of described pull flexible axle (30).
9. locking mechanism according to claim 8, it is characterized in that, described handle (51) is external pulling type, the plane, movement locus place of described second connecting rod mechanism (53) is perpendicular to the plane, movement locus place of described handle, the link position place of described first connecting rod mechanism (52) and described second connecting rod mechanism (53) is provided with return mechanism (54), and the first end of described second connecting rod mechanism (53) is connected with described return mechanism (54).
10. locking mechanism according to claim 9, it is characterized in that, described return mechanism (54) comprises limit base (541) and the pull bar (542) that is fixedly installed on described lock collar (40), described limit base is provided with installing hole on (541), described pull bar (542) is slidably disposed in described installing hole, the first end end of described second connecting rod mechanism (53) is connected to described pull bar (542), pull bar (542) between described limit base (541) and described second connecting rod mechanism (53) is outside equipped with return spring (543), described control part (60) comprises that telescopically is arranged on the button (61) away from the outer end of described second connecting rod mechanism (53) of described pull bar (542).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310049624.8A CN103132826B (en) | 2013-02-07 | 2013-02-07 | Locking mechanism of cockpit door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310049624.8A CN103132826B (en) | 2013-02-07 | 2013-02-07 | Locking mechanism of cockpit door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103132826A true CN103132826A (en) | 2013-06-05 |
| CN103132826B CN103132826B (en) | 2015-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310049624.8A Active CN103132826B (en) | 2013-02-07 | 2013-02-07 | Locking mechanism of cockpit door |
Country Status (1)
| Country | Link |
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| CN (1) | CN103132826B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352616A (en) * | 2013-07-19 | 2013-10-16 | 玉环县天润航空机械制造厂 | Cabin door locking mechanism |
| CN107558824A (en) * | 2017-10-17 | 2018-01-09 | 玉环天润航空机械制造有限公司 | A kind of locking device and hatch door block sytem |
| CN107587787A (en) * | 2017-10-18 | 2018-01-16 | 玉环天润航空机械制造有限公司 | A kind of slide locking device |
| CN107762330A (en) * | 2016-08-16 | 2018-03-06 | 麦格纳覆盖件有限公司 | Electric door opener with breech lock function |
| CN109610959A (en) * | 2018-10-31 | 2019-04-12 | 广西柳工机械股份有限公司 | Cab door limiting lock dual control tripper |
| CN110905302A (en) * | 2019-11-14 | 2020-03-24 | 哈尔滨飞机工业集团有限责任公司 | Helicopter cabin door latch mechanism |
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| CN201137336Y (en) * | 2007-12-13 | 2008-10-22 | 陕西飞机工业（集团）有限公司 | Cabin door locking apparatus |
| CN201553208U (en) * | 2009-10-26 | 2010-08-18 | 奇瑞汽车股份有限公司 | Anti-collide mechanism for oiling port cover of auto |
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| WO1998023833A1 (en) * | 1996-11-26 | 1998-06-04 | General Motors Corporation | Child-proof door latch |
| JP2005188130A (en) * | 2003-12-25 | 2005-07-14 | Mitsui Mining & Smelting Co Ltd | Door lock device |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352616A (en) * | 2013-07-19 | 2013-10-16 | 玉环县天润航空机械制造厂 | Cabin door locking mechanism |
| CN103352616B (en) * | 2013-07-19 | 2015-06-24 | 玉环天润航空机械制造有限公司 | Cabin door locking mechanism |
| CN107762330A (en) * | 2016-08-16 | 2018-03-06 | 麦格纳覆盖件有限公司 | Electric door opener with breech lock function |
| US10711504B2 (en) | 2016-08-16 | 2020-07-14 | Magna Closures Inc. | Power door presenter with latching feature |
| CN107762330B (en) * | 2016-08-16 | 2020-12-08 | 麦格纳覆盖件有限公司 | Electric vehicle door opener with latch function |
| CN107558824A (en) * | 2017-10-17 | 2018-01-09 | 玉环天润航空机械制造有限公司 | A kind of locking device and hatch door block sytem |
| CN107558824B (en) * | 2017-10-17 | 2022-09-30 | 玉环天润航空机械制造有限公司 | Locking device and cabin door locking system |
| CN107587787A (en) * | 2017-10-18 | 2018-01-16 | 玉环天润航空机械制造有限公司 | A kind of slide locking device |
| CN107587787B (en) * | 2017-10-18 | 2022-10-04 | 玉环天润航空机械制造有限公司 | Sliding door locking device |
| CN109610959A (en) * | 2018-10-31 | 2019-04-12 | 广西柳工机械股份有限公司 | Cab door limiting lock dual control tripper |
| CN110905302A (en) * | 2019-11-14 | 2020-03-24 | 哈尔滨飞机工业集团有限责任公司 | Helicopter cabin door latch mechanism |
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|---|---|
| CN103132826B (en) | 2015-03-11 |
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