CN201620677U - Cam hook-type lock of cockpit - Google Patents

Abstract

The utility model relates to a structure of airplane cockpit, in particular to a cam hook-type lock of the cockpit. A bolt assembly is fixed arranged in a positioning press block of the cockpit; a lock pin is arranged on a fork lug of the bolt assembly; a cam lock hook is arranged in a lock hook seat through a fixed shaft pin; a limiting pin is arranged in the lock hook seat; the cam lock hook is provided with a concave surface bayonet, a lug piece and a convex tabletop; the concave surface bayonet corresponds to the lock pin; the convex tabletop corresponds to a concave tabletop; the lug piece is connected with a spline lug piece through an elastic piece; a spline rocker arm is connected with a spline cam; and the spline rocker arm is connected with an operation handle for externally locking through a fixed shaft pin. The cam hook-type lock of the cockpit can realize the locking under the action of self gravity of a cockpit cover and has the advantages of simple and convenient structural form, reliable locking and easy realization of functions.

Description

A kind of passenger cabin cam hook-type lock

Technical field

The utility model relates to the aircraft cockpit structure, particularly a kind of passenger cabin cam hook-type lock.

Background technology

The function of aircraft cockpit lock system will act on pneumatic and supercharging loading transfer on the portable cover to fuselage when being flight.The designing requirement of passenger cabin lock system is: can give airframe structure with the loading transfer that acts on the portable cover reliably, can auto-unlocking under various flight situations, and firm locking; Ground normally uses, during aerial blow the canopy, can be simply, easily, promptly unblank; The necessary synchronous coordination of all locks; Must be provided with mechanical unlocking handle in the machine, in emergency circumstances be convenient to the pilot and open latch mechanism; Pilot guidance should be convenient in the position of mechanical unlocking handle in the machine; Abrasion resistance is good, and the excessive abrasion of part operate as normal must not appear in structural member.

Machinery passenger cabin lock form generally has hook-type lock and door bolt formula lock.Hook-type lock is easy to lock and unblank, but and the normal emergent lock of lock double as, but if design is improper or improper use or since selection be wanting in consideration, the prolonged abrasion deformation of mechanism, make systemic-function decline even inefficacy, cause contingency, so hook-type lock having relatively high expectations to design, manufacturing.Door bolt formula lock stand under load contact surface is big, it is firm to lock, and processing technology, assembling are simple relatively, and working service is convenient, and stroke is longer but door bolt formula lock is unblanked, and is not suitable for high-speed aircraft and can throws and put the hatchcover latch mechanism.

Summary of the invention

The purpose of this utility model is, under the prerequisite that satisfies hook-type lock basic function, design precisely ingeniously, and form of structure is rationally simple, and can rely on the self-locking hatchcover of self gravitation effect of hatchcover to lock.

The utility model is achieved through the following technical solutions, a kind of passenger cabin cam hook-type lock, comprise: latch assembly, the cam latch hook, the spline cam, elastic component, be installed with latch assembly in the briquetting of passenger cabin location, the fork ear of latch assembly is provided with lock pin, the cam latch hook is installed in the lock hook seat by fixing pivot pin, be provided with spacer pin in the lock hook seat, the cam latch hook is provided with the concave surface bayonet socket, auricle and boss face, the concave surface bayonet socket is corresponding with lock pin, and boss face is corresponding with the concave station face, and auricle is connected by elastic component with the spline auricle, the spline rocking arm is connected with the spline cam, and the spline rocking arm is connected by the outer operating grip of fixing pivot pin and lock.

The utility model has the advantages that can realize automatically locking under the effect of hatchcover self gravitation, form of structure be easy, firm locking, function are easy to realize.

Description of drawings

Fig. 1 is the utility model locking state schematic diagram

Fig. 2 is the utility model unlocking condition schematic diagram

Fig. 3 is the schematic diagram of the utility model cam latch hook 2

Fig. 4 is the schematic diagram of spline cam 5 in the utility model

Fig. 5 is that the A of latch assembly 3 in the utility model is to schematic diagram

Among the figure: 1 spacer pin, 2 cam latch hooks, 21 concave surface bayonet sockets, 22 auricles, 23 boss face, 3 latch assemblies, 31 fork ears, 32 lock pins, 4 elastic components, 5 spline cams, 51 spline auricles, 52 concave station faces, 53 axis holes, 6 spline rocking arms, 7 are pivot pin, 8 lock hook seats, 9 passenger cabins location briquetting fixedly

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples, referring to accompanying drawing 1-5, a kind of passenger cabin cam hook-type lock, comprise: latch assembly 3, cam latch hook 2, spline cam 5, elastic component 4, be installed with latch assembly 3 in the briquetting 9 of passenger cabin location, the fork ear 31 of latch assembly 3 is provided with lock pin 32, cam latch hook 2 is installed in the lock hook seat 8 by fixing pivot pin 7, also be provided with spacer pin 1 in the lock hook seat 8, cam latch hook 2 is provided with concave surface bayonet socket 21, auricle 22 and boss face 23, concave surface bayonet socket 21 is corresponding with lock pin 32, boss face 23 is corresponding with concave station face 52, auricle 22 is connected by elastic component 4 with spline auricle 51, and spline rocking arm 6 is connected with spline cam 5, and spline rocking arm 6 is connected by the outer operating grip of fixing pivot pin 7 and lock.

It is the hook-type lock of a cover band compound cam that this reality is done novel, its course of work is, when locking, referring to accompanying drawing 1, utilization is fixed on the latch assembly 3 of the band fork ear on the portable cover, insert in the lock hook seat 8 of fuselage mouth frame, depress cam latch hook 2, under the elastic component 4 elastic force actings in conjunction between canopy self gravitation and cam latch hook 2 and the spline cam 5, overcome the frictional force between cam latch hook 2 and the spline cam 5, after turning to a certain point of view, the boss face 23 of cam latch hook 2 is taken advantage of a situation on the concave station face 52 that slips into spline cam 5, the lock pin 32 of latch assembly 3 is caught on by concave surface bayonet socket 21 constraints of cam latch hook 2 simultaneously, promptly is in locking state.

When unblanking, referring to accompanying drawing 2, by connecting bolt with in the machine or the power of machine outdoor handle reach spline rocking arm 6, under the effect that overcomes elastic component 4 elastic force, after drive spline cam 5 clockwise rotated certain angle, the boss face 23 of cam latch hook 2 broke away from the concave station face 52 of spline cams 5, and cam latch hook 2 clockwise rotates to spacer pin 1 position simultaneously, the fork ear 31 of 21 pairs of latch assemblies 3 of concave surface bayonet socket of cam latch hook 2 is provided with the constraint release of lock pin 32 at this moment, promptly realizes unlocking function.

The utility model installation process is at first, to accomplish fluently spacer pin 1; Secondly, bolt and the locking nut with the band anti-wearing liner is fixed on cam latch hook 2 on the lock hook seat 8; Once more, adjust cam latch hook 2 positions, spline cam 5 and spline rocking arm 6 are fixed by lock hook seat 8 rigging positions, and used nut check; After this, adjust the cooperation position of cam latch hook 2 and spline cam 5, preferably the time, it is hooked auricle 22 and spline auricle 51 with elastic component 4, elastic component 4 employing extension springs at its fitting area; At last, with spline rocking arm 6 usefulness fixedly the outer operating grip of pivot pin 7 and lock be connected, and on passenger cabin, locate the position of locking the cam hook-type by latch assembly 3.

The utility model is applicable to that all have and wears lid and throw canopy cover function, comparatively speaking, be used for throwing and put hatchcover and have more advantage, but need be used with passenger cabin blow the canopy mechanism, has good application value.

Claims (1)

1. a passenger cabin cam hook-type is locked, comprise: latch assembly [3], cam latch hook [2], spline cam [5], elastic component [4], be installed with latch assembly [3] in the passenger cabin location briquetting [9], the fork ear [31] of latch assembly [3] is provided with lock pin [32], cam latch hook [2] is installed in the lock hook seat [8] by fixing pivot pin [7], it is characterized in that, be provided with spacer pin [1] in the lock hook seat [8], cam latch hook [2] is provided with concave surface bayonet socket [21], auricle [22] and boss face [23], concave surface bayonet socket [21] is corresponding with lock pin [32], boss face [23] is corresponding with concave station face [52], auricle [22] is connected by elastic component [4] with spline auricle [51], spline rocking arm [6] is connected with spline cam [5], and spline rocking arm [6] is connected by the outer operating grip of fixing pivot pin [7] and lock.

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