CN204511097U - A kind of safe and reliable locking mechanism - Google Patents
A kind of safe and reliable locking mechanism Download PDFInfo
- Publication number
- CN204511097U CN204511097U CN201520060754.6U CN201520060754U CN204511097U CN 204511097 U CN204511097 U CN 204511097U CN 201520060754 U CN201520060754 U CN 201520060754U CN 204511097 U CN204511097 U CN 204511097U
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- Prior art keywords
- swing arm
- connecting rod
- lock box
- safe
- locking mechanism
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Abstract
The utility model is a kind of safe and reliable locking mechanism, comprises lock box, is provided with lock hook shaft and arm shaft in lock box, is connected with latch hook and right torsion spring at lock hook shaft, is connected with swing arm and left torsion spring at arm shaft; The external surface of lock box is provided with connecting rod and microswitch, and connecting rod is connected with the middle part of swing arm by connecting axle, and the outer end of swing arm is connected with steel wire pull line; Described swing arm is provided with concave structure, latch hook is provided with the convex structure suitable with this concave structure, the side on described connecting rod is provided with projection, and this projection is corresponding with the contact of microswitch to be arranged.The utility model compact conformation, safe and reliable, and be convenient to safeguard.
Description
Technical field
The utility model belongs to specially for helicopter cockpit door lock closes development, is a sub-unit in cockpit door locking mechanism assembly, specifically refers to a kind of safe and reliable locking mechanism.
Background technology
The existing locking mechanism kind be applied on helicopter cockpit door is single, and structure is more complicated, and fault rate is high, also inconvenient when safeguarding.
Summary of the invention
In order to overcome defect of the prior art, the purpose of this utility model is to provide a kind of compact conformation, safe and reliable, and is convenient to the safe and reliable locking mechanism of maintenance.
The purpose of this utility model is achieved in that a kind of safe and reliable locking mechanism, comprises lock box, is provided with lock hook shaft and arm shaft in lock box, is connected with latch hook and right torsion spring at lock hook shaft, is connected with swing arm and left torsion spring at arm shaft; The external surface of lock box is provided with connecting rod and microswitch, and connecting rod is connected with the middle part of swing arm by connecting axle, and the outer end of swing arm is connected with steel wire pull line; Described swing arm is provided with concave structure, latch hook is provided with the convex structure suitable with this concave structure, the side on described connecting rod is provided with projection, and this projection is corresponding with the contact of microswitch to be arranged.
Above-mentioned connecting rod is arranged with spring, and is limited on connecting rod with packing ring and cottor pin.
Above-mentioned lock box offers bar-shaped trough, and described connecting axle is fixed with cottor pin through after swing arm, bar-shaped trough and connecting rod successively.
Above-mentioned lock box is provided with fixed cover, and described steel wire pull line is through this fixed cover.
On above-mentioned lock box, correspondence is provided with lock box cover.
The utility model gives prominence to compared to existing technology and useful technique effect is: the utility model compact conformation, safe and reliable, and is convenient to safeguard.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation sketch;
The state diagram of lock box inside when Fig. 2 is the utility model closedown;
Fig. 3 is the left side schematic diagram of Fig. 2;
The state diagram of lock box external surface when Fig. 4 is the utility model closedown;
The state diagram of lock box inside when Fig. 5 is the utility model unlatching;
Fig. 6 is the left side schematic diagram of Fig. 5;
The state diagram of lock box external surface when Fig. 7 is the utility model unlatching.
Detailed description of the invention
The utility model is further described with specific embodiment below in conjunction with accompanying drawing:
See shown in Fig. 1-Fig. 7, a kind of safe and reliable locking mechanism, comprises lock box 1, is provided with lock hook shaft 2 and arm shaft 3 in lock box 1, is connected with latch hook 21 and right torsion spring 22 at lock hook shaft 2, is connected with swing arm 31 and left torsion spring 32 at arm shaft 3; The external surface of lock box 1 is provided with connecting rod 4 and microswitch 5, and connecting rod 4 is connected by the middle part of connecting axle 6 with swing arm 31, and the outer end of swing arm 31 is connected with steel wire pull line 7; Described swing arm 31 is provided with concave structure 311, latch hook 21 is provided with the convex structure 211 suitable with this concave structure 311, the side on described connecting rod 4 is provided with protruding 8, and this projection 8 is corresponding with the contact of microswitch 5 to be arranged.
Select as first, above-mentioned connecting rod 4 is arranged with spring 9, and is limited on connecting rod 4 with packing ring 10 and cottor pin 11.
Select as first, above-mentioned lock box 1 offers bar-shaped trough 101, described connecting axle 6 is fixed with cottor pin 11 through after swing arm 31, bar-shaped trough 101 and connecting rod 4 successively.
Select as first, above-mentioned lock box 1 is provided with fixed cover 12, described steel wire pull line 7 is through this fixed cover 12.
Select as first, on above-mentioned lock box 1, correspondence is provided with lock box cover.
See (Fig. 2-Fig. 4) when the utility model is closed:
(1), latch hook 21 under external force, rotating counterclockwise around axle 2, when turning to position shown in Fig. 2, being just in time in locking states;
(2), when latch hook 21 turns to locked position, swing arm 31 is rotated around axle 2 under left torsion spring 32 acts on, and engages, i.e. locking states so the concave structure 311 in swing arm 31 is in the convex structure 211 on latch hook 21;
(3), swing arm 31 and connecting rod 4 are in linkage status because of being connected together with connecting axle 6;
(4), swing arm 31 drivening rod 4 moves and projection 8 on connecting rod 4 controls microswitch 5 circuit debugging and disconnection, and form feedback signal, locking mechanism completes cut out.
When locking mechanism is opened (Fig. 5-Fig. 7):
(1), steel wire pull line 7 under external force, outwards move, because steel wire pull line 7 termination is connected with swing arm 31, so drive swing arm 31 to rotate clockwise around axle 3 make swing arm 31 and latch hook 21 disengaged position;
(2), latch hook 21 rotates clockwise around axle 2 under right torsion spring effect, and the concave indentation 13 on latch hook 21 is consistent with the breach direction of lock box 1, and latch mechanism is opened;
(3), because swing arm 31 and connecting rod 4 are in interaction relation, drivening rod 4 moves, thus allows the projection 8 on connecting rod 4 control microswitch 5 circuit debugging and disconnection, forms feedback signal, completes locking mechanism and opens.
In addition, locking mechanism is when cutting out, and under left torsion spring 32 acts on, the concave structure 311 in swing arm 31 is in engagement with the convex structure 211 of latch hook 21, prevents locking mechanism from getting loose under vibration (namely surprisingly unblanking).
Above-described embodiment is only preferred embodiment of the present utility model, not limits protection domain of the present utility model according to this, therefore: all equivalence changes done according to structure of the present utility model, shape, principle, all should be covered by within protection domain of the present utility model.
Claims (5)
1. a safe and reliable locking mechanism, is characterized in that: comprise lock box, is provided with lock hook shaft and arm shaft in lock box, is connected with latch hook and right torsion spring at lock hook shaft, is connected with swing arm and left torsion spring at arm shaft; The external surface of lock box is provided with connecting rod and microswitch, and connecting rod is connected with the middle part of swing arm by connecting axle, and the outer end of swing arm is connected with steel wire pull line; Described swing arm is provided with concave structure, latch hook is provided with the convex structure suitable with this concave structure, the side on described connecting rod is provided with projection, and this projection is corresponding with the contact of microswitch to be arranged.
2. safe and reliable locking mechanism according to claim 1, is characterized in that: described connecting rod is arranged with spring, and is limited on connecting rod with packing ring and cottor pin.
3. safe and reliable locking mechanism according to claim 1 and 2, is characterized in that: described lock box offers bar-shaped trough, and described connecting axle is fixed with cottor pin through after swing arm, bar-shaped trough and connecting rod successively.
4. safe and reliable locking mechanism according to claim 1, is characterized in that: described lock box is provided with fixed cover, and described steel wire pull line is through this fixed cover.
5. safe and reliable locking mechanism according to claim 1, is characterized in that: on described lock box, correspondence is provided with lock box cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520060754.6U CN204511097U (en) | 2015-01-28 | 2015-01-28 | A kind of safe and reliable locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520060754.6U CN204511097U (en) | 2015-01-28 | 2015-01-28 | A kind of safe and reliable locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204511097U true CN204511097U (en) | 2015-07-29 |
Family
ID=53709092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520060754.6U Active CN204511097U (en) | 2015-01-28 | 2015-01-28 | A kind of safe and reliable locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204511097U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105730674A (en) * | 2016-02-02 | 2016-07-06 | 玉环天润航空机械制造有限公司 | Opening and closing mechanism, lock and helicopter |
-
2015
- 2015-01-28 CN CN201520060754.6U patent/CN204511097U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105730674A (en) * | 2016-02-02 | 2016-07-06 | 玉环天润航空机械制造有限公司 | Opening and closing mechanism, lock and helicopter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |