CN201137336Y

CN201137336Y - Cabin door locking apparatus

Info

Publication number: CN201137336Y
Application number: CNU2007203105208U
Authority: CN
Inventors: 梁应军; 赵那斯图; 汪海清
Original assignee: AVIC Shaanxi Aircraft Industry Group Corp Ltd
Current assignee: Xi'an aircraft, international aviation manufacturing, Limited by Share Ltd, Hanzhoung aircraft branch
Priority date: 2007-12-13
Filing date: 2007-12-13
Publication date: 2008-10-22
Anticipated expiration: 2017-12-13

Abstract

The utility model relates to a compartment door locking device, which comprises a shifting claw torsion spring, a shifting claw, a lock hook, a lock pillar, a lock hook torsion spring and a support stand, wherein the lock pillar is connected with a device body, an L-shaped locking arm is installed on the shifting claw through a rotation shaft which is arranged on the peak of the L-shaped locking arm, one end of the L-shaped locking arm is connected with a steel rope with a locking spring, and the other end is connected with a connecting rod through a connecting rotation shaft, the other end of the connecting rod is connected on a fixed rotation shaft on the support stand, and the rotation shafts are all in one line when the L-shaped locking arm and the connecting rod are in the locking state. Compared with the prior art, the compartment door locking device has the advantages that firstly the locking and lockup (secure) are firm and reliable, secondly a secure device is naturally provided, thirdly larger impact which is generated through closing the compartment door can be effectively absorbed, and finally the structure is simple, and the financial resource and labor resource can be saved.

Description

A kind of hatch door locking device

Technical field

The utility model is a kind of hatch door locking device, belongs to the frame for movement technical field.

Background technology

Locking device such as Fig. 1 of aircraft door use at present show, be to rotate pusher dog 2 by pusher dog torsion spring 1 to block latch hook 3, latch hook 3 hooks lock 4 and the device of realization locking, and the weak point of this device is: do not have insurance institution, locking is unreliable concerning some important hatch doors; Can not effectively absorb the impact force that produces when closing hatch door, particularly impact force and destroy locking device when big easily.

Summary of the invention

The defective that the present invention exists at above-mentioned existing apparatus just and design a kind of hatch door locking device is provided its objective is the improvement existing apparatus, and a kind of locking device that carries insurance institution is provided.

The purpose of this utility model realizes by following measure:

This kind hatch door locking device, comprise the pusher dog torsion spring, pusher dog, latch hook, lock, latch hook torsion spring and bearing, lock and body link together, its structural design features is: by rotating shaft a L shaped lock arm is installed on pusher dog, rotating shaft is arranged on L shaped lock arm point place, one end of L shaped lock arm connects a firm rope of deciding spring with lock, its other end connects rotating shaft by one and is connected with connecting rod, the other end of connecting rod is connected on the fixed rotating shaft on the bearing, L shaped lock arm and connecting rod when lock-out state, rotating shaft, rotating shaft and rotating shaft are in a straight line.In addition, the indent of the junction of latch hook and pusher dog is the transition region of one section circular arc.

The structure design of the utility model device has solved following problem in the existing mechanism:

(a) locking state: the utility model and hatch door connect as one, and during locking, latch hook hooks lock (lock is fixed on the body), hatch door is closed put in place, and pusher dog blocks latch hook in the other direction, and latch hook can not be rotated towards the direction of unblanking, and keep firm locking state;

(b) locking (insurance) state: the utility model design has the insurance institution of a cover by connecting rod, lock arm and locking spring, by the self-locking action of connecting rod, lock arm itself, provides a kind of locking (insurance) device;

(c) the greater impact power that is produced when effectively hatch door is closed in absorption by the arc transition district on the latch hook.

Description of drawings

The hatch door locking device that Fig. 1 uses at present

Fig. 2 is that hatch door locking state, insurance institution are in insurance (self-locking) status architecture schematic diagram

Fig. 3 is that insurance institution is in open mode, status architecture schematic diagram when hatch door is about to open

Fig. 4 is hatch door status architecture schematic diagram when opening moment

Status architecture schematic diagram when Fig. 5 is the hatch door turn-off transient

Status architecture schematic diagram when Fig. 6 is the impact force that produces when effectively absorbing hatch door and closing

Fig. 7 is the arc transition district signal of latch hook

The specific embodiment

Below with reference to accompanying drawing and embodiment the utility model is described in further detail:

Shown in accompanying drawing 2～7, this kind hatch door locking device, comprise pusher dog torsion spring 1, pusher dog 2, latch hook 3, lock 4, latch hook torsion spring 5 and bearing 6, lock 4 links together with body, on pusher dog 2, a L shaped lock arm 9 is installed by rotating shaft 11, rotating shaft 11 is arranged on place, L shaped lock arm 9 pinnacles, one end of L shaped lock arm 9 connects a firm rope 7 of deciding spring 10 with lock, its other end connects rotating shaft 12 by one and is connected with connecting rod 8, the other end of connecting rod 8 is connected on the fixed rotating shaft 13 on the bearing 6, L shaped lock arm 9 and connecting rod 8 when lock-out state, rotating shaft 11, rotating shaft 12 and rotating shaft 13 are in a straight line.In addition, latch hook 3 is the transition region of one section circular arc with the indent of the junction of pusher dog 2.

The course of work of the utility model device is:

As shown in Figure 2, the hatch door locking state, this moment, latch hook 3 hooked lock 4, and pusher dog 2 blocks latch hook 3, and latch hook 3 can not be rotated towards the direction of unblanking; Connecting rod 8 and lock arm are in self-locking state 9 this moments, and its active force conllinear guarantees that pusher dog 2 can not rotate on same straight line, play safety effect.

As shown in Figure 3, when opening hatch door, only need the firm rope 7 of pulling, open safeties, pusher dog 2 is thrown off latch hooks 3 at this moment, and hatch door is about to open.

Behind pusher dog 2 complete latch hooks 3, latch hook 3 rotates towards the direction of unblanking under the effect of latch hook torsion spring 5, throws off lock 4, and hatch door is opened, and Fig. 4 opens moment for hatch door.

When closing hatch door, when latch hook 3 is run into lock 4, under the effect of door closing force, overcome the elastic force of latch hook torsion spring 5, latch hook 3 is rotated, as shown in Figure 5 towards shutting direction.After latch hook 3 forwarded the position to, pusher dog 2 rotated under the effect of pusher dog torsion spring 1 and locking spring 10 and blocks latch hook 3, and connecting rod 8 and lock arm 9 are in self-locking state again, play safety effect again, and at this moment, hatch door is locked fully, locks.

Shown in Fig. 6,7, if in closing the hatch door process, produce bigger impact force, can effectively absorb by the arc transition district on the latch hook 3, promptly be that latch hook 3 rotates along the impact force direction in this process, and pusher dog 2 is owing to be to contact with arc transition district on the latch hook 3, then pusher dog 2 can not rotate, thus the impact force that produces when effectively absorbing hatch door and closing, and can not damage body, hatch door and the utility model.Impact force returns to hatch door locking state as shown in Figure 2 after disappearing under the effect of latch hook torsion spring 5.

Through verification experimental verification, the utility model locking puts in place, and safeties are solid and reliable.

The utility model is compared with existing apparatus, and its advantage is:

(a) locking, the locking (insurance) solid and reliable;

(b) carry safeties;

(c) can effectively absorb the greater impact power that hatch door produces of closing;

(d) simple in structure, save financial resources, manpower.

Claims

1. hatch door locking device, comprise pusher dog torsion spring (1), pusher dog (2), latch hook (3), lock (4), latch hook torsion spring (5) and bearing (6), lock (4) links together with body, it is characterized in that: go up by rotating shaft (11) at pusher dog (2) a L shaped lock arm (9) is installed, rotating shaft (11) is arranged on place, L shaped lock arm (9) pinnacle, one end of L shaped lock arm (9) connects a firm rope (7) of deciding spring (10) with lock, its other end connects rotating shaft (12) by one and is connected with connecting rod (8), the other end of connecting rod (8) is connected on the fixed rotating shaft (13) on the bearing (6), L shaped lock arm (9) and connecting rod (8) when lock-out state, rotating shaft (11), rotating shaft (12) and rotating shaft (13) are in a straight line.

2. hatch door locking device according to claim 1 is characterized in that: latch hook (3) is the transition region of one section circular arc with the indent of the junction of pusher dog (2).