CN214170259U

CN214170259U - Luggage case lock mechanism for aircraft interior

Info

Publication number: CN214170259U
Application number: CN202022850264.XU
Authority: CN
Inventors: 柳毅; 黄寅; 赵伟; 杜春水; 汪凤姣; 金立明
Original assignee: Jiangsu Meilong Aviation Components Co ltd
Current assignee: Jiangsu Meilong Aviation Components Co ltd
Priority date: 2020-12-02
Filing date: 2020-12-02
Publication date: 2021-09-10
Anticipated expiration: 2030-12-02

Abstract

A trunk lock mechanism for an aircraft interior belongs to the technical field of aircraft interior. The handle mechanism is fixed on a door plate of the luggage case, the handle is sleeved in a handle box, two ends of the handle mechanism are connected with a handle box support through a pin shaft II, and the handle box support penetrates through the handle box support through a pin shaft I to be connected with one end of a linkage mechanism I; the left side lock mechanism and the right side lock mechanism are symmetrically connected to the side plates of the luggage case on two sides of the handle mechanism, and are provided with linkage mechanisms II which are connected to the linkage mechanisms I and the linkage mechanisms II through connecting rods I; the lock pin corresponds to the limiting grooves of the locking supports of the left locking mechanism and the right locking mechanism respectively, the locking supports are symmetrically fixed on the trunk fixing structure and are in matched contact with the lock catch of the linkage mechanism II, and the handle is pulled to drive the linkage mechanism I, the connecting rod I and the linkage mechanism II to drive, so that the lock catch of the linkage mechanism II rotates relative to the lock pin, and the trunk is locked and unlocked. The invention is suitable for the suitcase lock in the form of a suitcase body turnover switch, is simple and convenient to operate, and is not easy to rebound after being unlocked.

Description

Luggage case lock mechanism for aircraft interior

Technical Field

The invention belongs to the technical field of airplane interior trim, and particularly relates to a trunk lock mechanism for airplane interior trim.

Background

Most of existing trunks on airplanes are opened in a flip manner, the trunk opening and closing process occupies a large space, and the equipped lock mechanism is simple; the luggage case adopted on the novel airplane mostly adopts a case body overturning switch form, the luggage case of the case body overturning switch can save space and improve comfort level, and the lockset of the luggage case is relatively complex.

Disclosure of Invention

To the technical problem that above-mentioned exists, provide a suitcase lock mechanism for aircraft interior, be applicable to the suitcase tool to lock of box upset switch form, can accomplish the switch and the locking function of suitcase.

The purpose of the invention is realized by the following technical scheme:

the invention relates to a trunk lock mechanism for the interior decoration of an airplane, which comprises:

the handle mechanism is fixed on a rotating box plate of the luggage case and comprises a handle box support, a handle box and a handle, the handle is sleeved in the handle box, two ends of the handle are respectively connected with the handle box support through a pin shaft II, and pin shafts I at two ends of the handle penetrate through the handle box support and are connected with one end of the linkage mechanism I;

the two lock mechanisms are respectively a left side lock mechanism and a right side lock mechanism, the two lock mechanisms are symmetrically connected to two sides of the handle mechanism, one sides of the left side lock mechanism and the right side lock mechanism are respectively provided with a linkage mechanism II, and when the luggage case is used, the other sides of the left side lock mechanism and the right side lock mechanism are arranged on two side plates of the trunk fixed case;

two connecting rods I are symmetrically connected between the handle mechanism and the two lock mechanisms, and two ends of each connecting rod I are respectively connected to the linkage mechanism I and the linkage mechanism II;

the two lock pins are symmetrically fixed on the trunk positioning plate, correspond to the positions of the limiting grooves of the locking supports of the left lock mechanism and the right lock mechanism respectively, and are in matched contact with the lock catch of the linkage mechanism II;

the handle is pulled to drive the linkage mechanism I, the connecting rod I and the linkage mechanism II to drive, so that the lock catch of the linkage mechanism II rotates relative to the lock pin, and the trunk is locked and unlocked.

Preferably, the linkage mechanisms I are symmetrically arranged at the outer ends of two side plates of the handle box support and comprise cranks I, connecting rods II and torsional springs, one ends of the connecting rods II are connected with the pin shafts I of the handles, and the other ends of the connecting rods II are connected with the cranks I; one end of a crank I is sleeved on a fixed shaft of a handle box support, the other end of the crank I is connected with a connecting rod I, a torsion spring is sleeved on a fixed column of the handle box support, one end of the torsion spring is pressed on a pin shaft I, and the other end of the torsion spring is pressed on a limiting column, so that the handle tends to be closed; the handle rotates to drive the upper pin shaft I to rotate, and further drive the connecting rod II, the crank I and the connecting rod I connected with the handle to rotate.

Preferably, the crank I is sleeved by two connecting pipes with different pipe diameters, a U-shaped slot structure connected with the connecting rod I is arranged at the end of the large-pipe-diameter connecting pipe, and the end of the small-pipe-diameter connecting pipe is provided with a connecting plate I connected with the connecting rod II; the small-caliber connecting pipe end is connected with a fixed shaft on the handle box support and rotates around the fixed shaft.

Preferably, U type slot structure comprises notch portion and connecting portion, and its notch portion be with I link external diameter matched with round hole of connecting rod, and connecting portion comprise semicircle and two symmetrical connecting plates II, the semicircle with the round hole internal diameter is the same, and two symmetrical connecting plates II are tangent with the semicircle, and the symmetry sets up to have the arc binding off with I external diameter matched with of connecting rod, it has connecting hole I to open on connecting plate II of connecting portion, through I in-connection bolt fastening connecting rod I of connecting hole.

Preferably, the handle box support is an open slot structure for accommodating the handle box, the bottom plate in the slot is provided with a mounting hole I for connecting the handle box, the opening side of the slot is provided with an ear plate for connecting the luggage case body, the outer ends of the two side plates are symmetrically provided with a fixed shaft for connecting the crank I, a fixed column for mounting the torsion spring, a limiting column for limiting the torsion spring, a mounting hole I for connecting the handle and a strip-shaped hole for extending out of a pin shaft I on the handle;

the handle box is a groove-shaped box body with an opening on one side, and the side of the box body is matched with the open slot of the handle box support and is arranged in the upper space of the handle box support; the upper opening of the handle is matched with the handle;

the handle, set up round pin axle I and round pin axle II on the curb plate of both ends respectively, in the handle box was arranged in to the handle, both ends were articulated through round pin axle II and the mounting hole I of handle box support respectively, passed the bar jogged joint connecting rod II of handle box support both sides through round pin axle I.

Preferably, the lock mechanisms comprise a left lock mechanism and a right lock mechanism which have the same structure and respectively comprise a lock support, and linkage mechanisms II are arranged on the lock supports;

the lock support comprises a fixed structure, a crank rotating shaft and a lock catch rotating shaft, wherein three fixed structures connected with the trunk body fixed structure are arranged on one side, connected with the connecting rod, close to the edge;

the linkage mechanism II comprises a crank II, a crank III, a tension spring, a connecting rod III and a lock catch, the crank II and the crank III are both arranged on a crank rotating shaft, the crank II is connected with the connecting rod I, one end of the crank is connected with the connecting rod III, the connecting end bolt is arranged in a slot of a baffle of the crank II, the other end of the crank III is provided with a bending plate, the lock catch is arranged on the lock catch rotating shaft, one end of the lock catch is connected with the other end of the connecting rod III, the other end of the lock catch is matched with the lock pin for limiting, and the tension spring is connected between the connecting rod III and a lock support fixing plate;

the crank II and the crank III are driven to rotate through the rotation of the connecting rod I, the lock catch is driven to rotate through the connecting rod III connected with the crank II, and the lock catch rotates around the lock catch rotating shaft through the lock catch, so that the locking and unlocking of the lock pin are realized.

Preferably, the crank II is a pipe joint, one end of the crank II is provided with a round hole matched with a crank rotating shaft on the lock support, the crank II is driven to rotate around the crank rotating shaft through the round hole, the other end of the crank II is provided with a slotted hole matched with the outer diameter of the end part of the connecting rod I, and one end of the round hole is further provided with a baffle with a slot and used for being matched and linked with the connecting rod III.

Preferably, the middle part of the crank III is provided with a connecting hole II matched with a crank rotating shaft of the lock support, so that the crank III rotates around the crank rotating shaft through the connecting hole II, one end of the crank III is provided with a connecting hole III matched with the connecting rod III and is hinged to the connecting rod III through a screw, the other end of the crank III is provided with a bending plate, a cover is arranged on a rotating box plate of the luggage case, and when the handle is clamped and lagged, the cover is opened and then the bending plate is rotated, so that independent unlocking can be realized.

Preferably, the lock catch is provided with a mounting hole II which is matched and connected with the lock support, one end of the lock catch is provided with a clamping groove, the locking and unlocking functions are realized through the matching of the clamping groove and the lock pin, and the other end of the lock catch is provided with a connecting hole IV which is connected with the connecting rod III;

the cross section of the limiting groove is an arc-shaped opening groove in a shape like a Chinese character ji, the opening end is an inclined plane which is opened towards two sides, a closing-up is formed by arc transition between the opening end and the top end, the lock pin is arranged in a closing-up inner groove during locking, and the inner groove is matched with the lock catch to lock the lock pin.

Preferably, when whole latch mechanism is in the unblock state, the position of hasp and the III pin joint of connecting rod is in the upper end of the line of hasp pivot and crank pivot, and for the well position of crossing, the extension spring makes the ascending trend of hasp and the pin joint of connecting rod III, prevents that the hasp from taking place to kick-back.

The invention has the beneficial effects that:

1. the invention is characterized in that pin shafts at two ends of a handle mechanism penetrate through a handle box support to be connected with one end of a linkage mechanism I; the linkage mechanism I is connected with the linkage mechanism II on the left side lock mechanism and the right side lock mechanism arranged on the side plate of the luggage case through the connecting rod I, and the luggage case is locked and unlocked through the relative rotation of the lock catch of the linkage mechanism II and the lock pin. Simple operation and difficult rebound after unlocking.

2. The linkage mechanisms I are symmetrically arranged at the outer ends of two side plates of a handle box support, one end of a connecting rod II of the linkage mechanisms is connected with a pin shaft I of a handle, and the other end of the connecting rod II is connected with a crank I of a fixed shaft arranged on the handle box support; the handle is pressed on the pin shaft and the limiting column through the torsion spring sleeved on the fixing column, so that the handle tends to be closed, the connecting rod I is driven to rotate through the linkage mechanism I, the linkage mechanism II is driven to operate, and finally locking and unlocking are achieved. The crank I is structurally designed to drive the connecting rod I to rotate while rotating along with the connecting rod II.

3. A linkage mechanism II is connected with a connecting rod I through a crank II arranged on a crank rotating shaft, a crank III is connected with a connecting rod III, a connecting end bolt is arranged in a slot of a baffle plate of the crank II, a bending plate of the crank III is used for independently unlocking a handle when the handle is clamped, a lock catch is arranged on a lock catch rotating shaft, one end of the lock catch is connected with the connecting rod III, the other end of the lock catch is matched with a lock pin for limiting, and a tension spring is connected between the connecting rod III and a fixing plate of a lock support seat, so that a hinge joint of the lock catch and the connecting rod III has an upward trend, and the lock catch is prevented from rebounding; drive crank II and crank III through connecting rod I and rotate, and then drive the hasp through connecting rod III and rotate, rotate around the hasp pivot through the hasp, realize the locking and the unblock of lockpin.

4. The tension spring is connected between the connecting rod III and the fixing plate of the lock support, when the whole lock mechanism is in an unlocking state, the position of a hinge point of the lock catch and the connecting rod is positioned at the upper end of a connecting line of the lock catch rotating shaft and the crank rotating shaft, the hinge point of the lock catch and the connecting rod III tends to be upward due to the tension spring, and the lock catch is prevented from rebounding.

5. The bent plate at one end of the crank III can be independently unlocked, and when the handle is blocked in the rotating process, the crank III can rotate around the shaft through the bent plate on the crank III, so that the trunk can be directly unlocked.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

Fig. 2 is a schematic perspective view of one side of the handle mechanism of the present invention.

Fig. 3 is a schematic perspective view of the other side of fig. 2.

Fig. 4 is a perspective view of the operation surface of fig. 2.

Fig. 5 is a perspective view of the crank 6 of the present invention.

Fig. 6 is another end view of fig. 5.

Fig. 7 is a perspective view of the handle case holder according to the present invention.

Fig. 8 is a perspective view of the handle case 11 according to the present invention.

Fig. 9 is a perspective view of the handle 10 of the present invention.

Fig. 10 is a perspective view of the left side lock mechanism of the present invention.

Fig. 11 is a perspective view of the right side lock mechanism of the present invention.

Fig. 12 is a perspective view of the lock holder 12 of the present invention.

Fig. 13 is a perspective view of the crank 13 of the present invention.

Fig. 14 is a perspective view of the crank 14 of the present invention.

Fig. 15 is a schematic perspective view of the lock 16 of the present invention.

Fig. 16 is a perspective view of the connecting rod 15 of the present invention.

Fig. 17 is a schematic plan view of fig. 16.

FIG. 18 is a schematic view of the present invention in an operative condition wherein (A) is a schematic view of a left lock mechanism; and (B) is an operation schematic diagram of the right lock mechanism.

FIG. 19 is a schematic view of the handle of the present invention in the open position wherein (C) is a schematic view of the operation of the left lock mechanism; (D) the right side lock mechanism works schematically.

In the figure: 1. the handle mechanism, 2, the left side lock mechanism, 3, the right side lock mechanism, 4, the handle box support, 41, the fixed shaft, 42, the fixed column, 43, the limit column, 44, the mounting hole I, 45, the lug plate, 46, the strip-shaped hole, 47, the fixed hole, 5, the connecting rod I, 6, the crank I, 61, the large-diameter connecting pipe, 62, the small-diameter connecting pipe, 63, the connecting plate I, 64, the U-shaped slot structure, 641, the semi-circular arc, 642, the round hole, 643, the arc-shaped closing-in, 644, the connecting plate II, 645, the connecting hole I, 7, the connecting rod II, 8, the pin shaft I, 9, the torsion spring, 10, the handle, 11, the handle box, 111, the mounting column, 112, the opening, 12, the lock support, 121, the fixed structure, 122, the crank rotating shaft, 123, the fixed plate, 124, the limit groove, 1241, the open end, the top end, 125, the rotating shaft lock catch, 13, the crank II, 131, the round hole, 132, 133. the novel hinge comprises a baffle, 134 a slot, 14 a crank III, 141 a connecting hole II, 142 a connecting hole III, 143 a bending plate, 15 a connecting rod III, 151 a connecting plate, 152 a fixed pin shaft, 153 a fixed nut, 154 a middle clamping groove, 16 a lock catch, 161 a clamping groove, 162 a mounting hole II, 163 a connecting hole IV, 17 a lock pin, 18 a tension spring and 19 a pin shaft II.

Detailed Description

The invention is described in detail below with reference to the figures and examples.

Example (b): as shown in fig. 1, the present invention provides a trunk lock mechanism for an interior of an aircraft, including:

the handle mechanism 1 is fixed on a rotating box plate of the luggage case through screws and comprises a handle box support 4, a handle box 11 and a handle 10, wherein the handle 10 is sleeved in the handle box 11, two ends of the handle 10 are respectively connected with the handle box support 4 through pin shafts II 19, and pin shafts I8 at two ends of the handle 10 penetrate through strip-shaped holes 46 of the handle box support 4 and are connected with one end of a linkage mechanism I;

the two lock mechanisms are respectively a left lock mechanism 2 and a right lock mechanism 3, the two lock mechanisms are symmetrically connected to two sides of the handle mechanism 1, one sides of the left lock mechanism 2 and the right lock mechanism 3 are both provided with a linkage mechanism II, and when the luggage case is used, the other sides of the left lock mechanism 2 and the right lock mechanism 3 are arranged on two side plates of a trunk fixed case;

two connecting rods I5 are symmetrically connected between the handle mechanism 1 and the two lock mechanisms, and two ends of each connecting rod are respectively connected to the linkage mechanism I and the linkage mechanism II;

the two lock pins 17 are symmetrically fixed on the trunk positioning plate, correspond to the positions of the limiting grooves 124 of the locking support 12 of the left lock mechanism 2 and the right lock mechanism 3 respectively, and are in matched contact with the lock catch 16 of the linkage mechanism II;

the handle 10 is pulled to drive the linkage mechanism I, the connecting rod I5 and the linkage mechanism II to transmit, so that the lock catch 16 of the linkage mechanism II rotates relative to the lock pin 17, and the trunk is locked and unlocked.

As shown in fig. 2-4, the linkage mechanisms i are symmetrically arranged at the outer ends of the two side plates of the handle box support 4 and comprise cranks i 6, connecting rods ii 7 and torsion springs 9, one end of each connecting rod ii 7 is connected with a pin shaft i 8 of the handle 10, and the other end of each connecting rod ii 7 is connected with the corresponding crank i 6 through bolts; one end of a crank I6 is sleeved on a fixed shaft 41 of the handle box support 4, the other end of the crank is connected with a connecting rod I5, a torsion spring 9 is sleeved on a fixed column 42 of the handle box support 4, one end of the torsion spring is pressed on a pin shaft I8, and the other end of the torsion spring is pressed on a limiting column 43, so that the handle 10 tends to be closed; the handle 10 rotates to drive the pin shaft I8 thereon to rotate, and further drive the connecting rod II 7, the crank I6 and the connecting rod I5 connected with the connecting rod I to rotate.

As shown in fig. 5 and 6, the crank i 6 is sleeved by two connecting pipes with different pipe diameters, a U-shaped slot structure 64 connected with the connecting rod i 5 is arranged at the end of the large-pipe-diameter connecting pipe 61, and a connecting plate i 63 connected with the connecting rod ii 7 is arranged at the end of the small-pipe-diameter connecting pipe 62; the small-caliber connecting pipe 62 is connected with the fixed shaft 41 on the handle box support 4 at the end and rotates around the fixed shaft 41.

The U-shaped slot structure 64 is composed of a slot part and a connecting part, the slot part is a round hole 642 matched with the outer diameter of the connecting end of the connecting rod I5, the connecting part is composed of a semi-arc 641 and two symmetrical connecting plates II 644, the semi-arc 641 and the round hole 642 have the same inner diameter, the two symmetrical connecting plates 644 II are tangent to the semi-arc 641 and are symmetrically arranged, an arc closing-in 643 matched with the outer diameter of the connecting rod I5 is arranged on the connecting plate II 644 of the connecting part, a connecting hole I645 is formed in the connecting plate II 644 of the connecting part, and the connecting rod I5 is fixed through a bolt connected in the connecting hole I645.

As shown in fig. 7, the handle box support 4 is an open slot structure for accommodating the handle box, a partition board is arranged in the open slot, two spaces are separated by the partition board, the bottom plate in the upper space slot is provided with a mounting hole i 44 for connecting the handle box, the opening side of the open slot is provided with an ear plate 45 for connecting the luggage case body, the outer ends of the two side plates are symmetrically provided with a fixing shaft 41 for connecting a crank i 6, a fixing column 42 for mounting a torsion spring 9, a limiting column 43 for limiting the torsion spring 9, a mounting hole i 44 for connecting the handle 10 and a strip-shaped hole 46 for extending a pin shaft i 8 on the handle.

As shown in fig. 8, the handle box 11 is a groove-shaped box body with an opening 112 on one side, the side of the box body is matched with an open slot of the handle box support 4 and is arranged in the upper space of the handle box support 4, a mounting column 111 with internal threads is fixed on the handle box 11 and is connected on a mounting hole i 44 of the handle box support 4 through a bolt, and the opening 112 on the side is matched with the handle 10.

As shown in fig. 9, the side plates at two ends of the handle 10 are respectively provided with a pin shaft I8 and a pin shaft II 19, the handle 10 is arranged in the handle box 11, two ends of the handle are respectively hinged with the mounting hole I44 of the handle box support 4 through the pin shaft II 19, and the pin shaft I8 penetrates through the strip-shaped holes 46 at two sides of the handle box support 4 to be connected with the connecting rod II 7.

As shown in fig. 10 and 11, the lock mechanisms including the left lock mechanism 2 and the right lock mechanism 3 have the same structure, and both include a lock support 12, and a linkage mechanism ii is arranged on each lock support;

as shown in fig. 12, the lock holder 12 includes a fixing structure 121, a crank shaft 122 and a lock shaft 125, wherein the side of the side connected to the connecting rod 5 near the edge is provided with three fixing structures 121 (in this example, a fixing column with internal threads is used, and the fixing column is connected to a side plate of the luggage case by a screw), the middle end of the fixing structure is provided with the crank shaft 122, the end opposite to the crank shaft 122 is provided with a limiting groove 124 for limiting the lock pin, one side of the limiting groove 124 is provided with the lock shaft 125, and the fixing structure 121 on the same side of the crank shaft 122 is provided with a fixing plate 123; crank shaft 122 is the reducing pivot, and by the pivot connection constitution of the different external diameters of two parts, big external diameter pivot end is connected on the lock support bottom plate for installation II 13 of crank, little external diameter pivot end is used for installing III 14 of crank, and little external diameter pivot end has the end plate to prevent that III 14 of crank from deviating from.

The linkage mechanism II comprises a crank II 13, a crank III 14, a tension spring 18, a connecting rod III 15 and a lock catch 16, wherein the crank II 13 and the crank III 14 are both arranged on a crank rotating shaft 122, the crank II 13 is connected with the connecting rod I5, one end of the crank 14 is connected with the connecting rod III 15 through a bolt, the connecting bolt is arranged in a slot 134 of a baffle 133 of the crank II 13 (in the embodiment, the slot 134 is a U-shaped open slot and matched with the end of the connecting rod III 15), a bending plate 143 at the other end of the crank III 14 is arranged on a lock catch rotating shaft 125, one end of the lock catch 16 is connected with the other end of the connecting rod III 15, the other end of the lock catch 16 is matched with the lock pin 17 for limiting, and the tension spring 18 is connected between the connecting rod III 15 and a fixing plate 123 of the lock support 12;

the crank II 13 and the crank III 14 are driven to rotate through the rotation of the connecting rod I5, the lock catch 16 is driven to rotate through the connecting rod III 15 connected with the crank II, and the lock catch 16 rotates around the lock catch rotating shaft 125 to realize the locking and unlocking of the lock pin 17.

As shown in fig. 13, the crank ii 13 is a pipe joint, one end of the crank ii 13 is provided with a round hole 131 matched with the crank rotating shaft 122 on the lock support 12, the crank ii 13 is driven to rotate around the crank rotating shaft 122 through the round hole 131, the other end of the crank ii is provided with a slotted hole 132 matched with the outer diameter of the end portion of the connecting rod i 5, and one end of the crank ii 131 is further provided with a baffle 133 with a slot 134 for matching and linking with the connecting rod iii 15.

The slotted hole 132 of this example is matched with the connecting end of the connecting rod III 15, and is formed by 4 rectangular slots at even intervals along the circumference.

As shown in fig. 14, the upper middle part of the crank iii 14 is provided with a connecting hole ii 141 matched with the crank rotating shaft 122 of the lock support 12, so that the crank iii 14 rotates around the crank rotating shaft 122 through the connecting hole ii 141, one end of the crank iii is provided with a connecting hole iii 142 matched with the connecting rod iii 15, the crank iii is hinged on the connecting rod iii 15 through a bolt, the other end of the crank iii is provided with a bending plate 143, a cover is arranged on a rotating box plate of the luggage box, when the handle 10 is blocked, the cover is opened and then the bending plate 143 is rotated, so that the independent unlocking can be realized,

as shown in fig. 15, the lock catch 16 has a mounting hole ii 162 that is in fit connection with the lock holder 12, and has a locking groove 161 at one end, and is placed in the limiting groove 124 or separated from the limiting groove 124 through the locking groove 161 and the lock pin 17 in fit connection, so as to realize locking and unlocking functions, and has a connecting hole iv 163 connected with the connecting rod iii 15 at the other end; in this embodiment, the locking slot 161 is a U-shaped opening slot, and is matched with the locking pin 17.

The limiting groove 124 is an arc-shaped opening groove with a cross section in a shape like a Chinese character ji, the opening end 1241 is an inclined plane which is opened towards two sides, a closing opening is formed in the arc transition between the opening end 1241 and the top end 1242, and the lock pin 17 is placed in the closing opening inner groove during locking so as to lock the lock pin 17.

As shown in fig. 16, the connecting rod iii 15 is formed by connecting two connecting plates 151 through a fixing pin 152, fixing nuts 153 are respectively connected to the fixing pin 152 between the two connecting plates, a middle slot 154 is formed between the two fixing nuts 153, one end of the tension spring 18 is fixed on the fixing plate 123 of the lock support 12, and the other end of the tension spring is fixed on the middle slot 154 of the connecting rod iii 15 through a screw, so that the connecting rod iii 15 is always in an upward tensioning trend.

The working principle of the invention is as follows:

the working stroke of the invention is divided into two parts: for opening or closing the suitcase

Open suitcase in-process and need rotate handle 10, drive II 19 of round pin axle on it and rotate I, simultaneously, handle 10 drives round pin axle I8 and rotates II around II 19 of round pin axle, I8 of round pin axle drives II 7 of connecting rod rather than being connected and moves III, III of the motion of connecting rod II 7 make the I6 of crank rather than being connected rotate IV around the fixed axle 41 of handle box support 4, it rotates IV to drive I5 of connecting rod around axle fixed axle 41 through I6 of crank, the rotation of connecting rod I5 drives respectively left side, II 13 of crank of right locking mechanism rotate IV motion, II 13 of crank rotate idle stroke, reach operating position: when the baffle 133 at one end of the crank II 13 contacts the bolt for connecting the crank III 14 and the connecting rod III, the crank II 13 is continuously rotated to drive the crank III 14 to rotate around the crank rotating shaft 122, the crank III 14 drives the connecting rod III 15 to move V, the connecting rod III 15 drives the lock catch 16 to rotate VI around the lock catch rotating shaft 125, and after the lock catch 16 rotates, the lock pin 17 is pushed to be separated from the locking position of the limiting groove 124, and finally unlocking is finished.

When the whole lock mechanism is in an unlocking state (as shown in C, D), rebound cannot occur, mainly because in an opening state, as shown in C, D, the position of the hinge point of the lock 16 and the connecting rod III 15 is at the upper end of the connecting line of the lock rotating shaft 125 and the crank rotating shaft 122, and the tension spring 18 enables the hinge point of the lock 16 and the connecting rod III 15 to have an upward trend to an over-center position, so that rebound of the lock 16 is prevented, any rotation of the crank III 14 around the crank rotating shaft 122 cannot drive the connecting rod III 15 to rotate, and the lock 16 can be separated from the locking state only by pushing the lock pin 17, so that misoperation of the handle 10 in the opening state is prevented, and the mechanism returns to the locking state, and the lock pin 17 is not in the locking state at the moment.

During the process of closing the luggage case, the handle 10 is not required to be operated, only the movable case of the luggage case is required to be pushed to restore the initial position, even if the lock pin 17 pushes the lock catch 16 to move, the locking can be completed, and the specific moving process is opposite to the unlocking process.

It should be understood that the detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can be modified or substituted equally to achieve the same technical effects; as long as the use requirements are met, the method is within the protection scope of the invention.

Claims

1. The utility model provides a suitcase lock mechanism for aircraft interior which characterized in that: the method comprises the following steps:

2. The aircraft interior luggage lock mechanism of claim 1, wherein: the linkage mechanisms I are symmetrically arranged at the outer ends of two side plates of the handle box support and comprise cranks I, connecting rods II and torsional springs, one ends of the connecting rods II are connected with pin shafts I of the handles, and the other ends of the connecting rods II are connected with the cranks I; one end of a crank I is sleeved on a fixed shaft of a handle box support, the other end of the crank I is connected with a connecting rod I, a torsion spring is sleeved on a fixed column of the handle box support, one end of the torsion spring is pressed on a pin shaft I, and the other end of the torsion spring is pressed on a limiting column, so that the handle tends to be closed; the handle rotates to drive the upper pin shaft I to rotate, and further drive the connecting rod II, the crank I and the connecting rod I connected with the handle to rotate.

3. The aircraft interior luggage lock mechanism of claim 2, wherein: the crank I is sleeved by two connecting pipes with different pipe diameters, a U-shaped slot structure connected with the connecting rod I is arranged at the end of the large-pipe-diameter connecting pipe, and the end of the small-pipe-diameter connecting pipe is provided with a connecting plate I connected with the connecting rod II; the small-caliber connecting pipe end is connected with a fixed shaft on the handle box support and rotates around the fixed shaft.

4. The aircraft interior luggage lock mechanism of claim 3, wherein: u type slot structure comprises notch portion and connecting portion, and its notch portion be with I link external diameter matched with round hole of connecting rod, and connecting portion comprise semicircle and two symmetrical connecting plates II, the semicircle with the round hole internal diameter is the same, and two symmetrical connecting plates II are tangent with the semicircle, and the symmetry sets up to have the arc binding off with I external diameter matched with of connecting rod, it has connecting hole I to open on connecting plate II of connecting portion, through I in-connection connecting bolt fixed connecting rod I of connecting hole.

5. A trunk lock mechanism for aircraft interior trim according to claim 1 or 2, characterized in that: the handle box support is of an open slot structure for accommodating the handle box, the bottom plate in the slot is provided with a mounting hole I for connecting the handle box, the open side of the slot is provided with an ear plate for connecting the luggage case body, the outer ends of the two side plates are symmetrically provided with a fixed shaft for connecting the crank I, a fixed column for mounting the torsion spring, a limiting column for limiting the torsion spring, a mounting hole I for connecting the handle and a strip-shaped hole for extending a pin shaft I on the handle;

6. The aircraft interior luggage lock mechanism of claim 1, wherein: the lock mechanisms comprise left lock mechanisms and right lock mechanisms which have the same structure and respectively comprise lock supports, and linkage mechanisms II are arranged on the lock supports;

7. The aircraft interior luggage lock mechanism of claim 6, wherein: the crank II is a pipe joint, one end of the crank II is provided with a round hole matched with a crank rotating shaft on the lock support, the round hole drives the crank II to rotate around the crank rotating shaft, the other end of the crank II is provided with a slotted hole matched with the outer diameter of the end part of the connecting rod I, and one end of the round hole is further provided with a baffle with a slot and used for being matched and linked with the connecting rod III.

8. The aircraft interior luggage lock mechanism of claim 6, wherein: the middle part of the crank III is provided with a connecting hole II matched with a crank rotating shaft of the lock support, the crank III rotates around the crank rotating shaft through the connecting hole II, one end of the crank III is provided with a connecting hole III matched with the connecting rod III, the crank III is hinged to the connecting rod III through a screw, the other end of the crank III is provided with a bending plate, a cover cap is arranged on a rotating box plate of the luggage case, and when the handle is blocked, the cover cap is opened and then the bending plate is rotated, so that independent unlocking can be achieved.

9. The aircraft interior luggage lock mechanism of claim 6, wherein: the lock catch is provided with a mounting hole II which is matched and connected with the lock support, one end of the lock catch is provided with a clamping groove, the locking and unlocking functions are realized through the matching of the clamping groove and the lock pin, and the other end of the lock catch is provided with a connecting hole IV which is connected with the connecting rod III;

10. The aircraft interior luggage lock mechanism of claim 6, wherein: when whole latch mechanism is in the unblock state, the position of hasp and the III pin joints of connecting rod is in the upper end of the line of hasp pivot and crank pivot, and for crossing the neutral position, the extension spring makes hasp and the ascending trend of the pin joint of connecting rod III, prevents that the hasp from taking place to kick-back.