CN219012250U - Door lock assembly and aircraft - Google Patents

Abstract

The utility model belongs to the technical field of door locks, and discloses a door lock assembly and an aircraft. The door lock assembly comprises a shell, a lock tongue, a first reset elastic piece and a switch assembly. The shell is provided with an installation space, and a first installation hole and a second installation hole which are communicated with the installation space are formed in the shell; the lock tongue is provided with a switch inclined plane and slidingly enters and exits the shell along a first direction; the first reset elastic piece is configured to push the lock tongue, so that the lock tongue has a movement trend of extending out of the shell along a first direction; the switch assembly comprises a button shaft, the button shaft penetrates through the second mounting hole and axially slides along the second mounting hole, a first end of the button shaft is positioned outside the shell, and a second end of the button shaft is abutted against the switch inclined plane; the second end of the button shaft is moved along the switch incline to drive the lock tongue to extend or retract into the housing through the first mounting hole. According to the utility model, the spring bolt extends out or retracts into the shell through controlling the expansion and contraction of the button shaft, so that the locking or unlocking purpose is achieved, the structure is simple, the reliability is high, and the locking is firm.

Description

Door lock assembly and aircraft

Technical Field

The utility model relates to the technical field of door locks, in particular to a door lock assembly and an aircraft.

Background

Along with the continuous improvement of the national economic level, the physical living standard of people is also improved, and the acceptance degree of people on airplane travel is also improved, so that the number of airplanes is also increased year by year. Large movable parts on aircraft, such as landing gear, aircraft door, flaps, are provided with locking means, which after opening or closing, lock in a predetermined position by means of the locking means. The working state of the aircraft door directly influences the completion condition of the aircraft flight mission and the safety of the aircraft flight, so the structure of the aircraft door lock assembly and the reliability thereof are of great importance.

The aircraft door lock mechanism is used as one of the main locking devices of the aircraft, is a key mechanism for controlling the opening and closing of the aircraft door, and the locking system on the aircraft at the present stage mainly comprises a latch type lock.

However, the existing latch lock is complex in structure, so that the whole system is likely to collapse once few parts are damaged, and the fault occurrence position cannot be rapidly confirmed when the system is maintained due to the fact that the structural complexity and the parts are too many; and is difficult to operate when locking or unlocking.

Disclosure of Invention

The utility model aims to provide a door lock assembly and an aircraft, which are simple in structure, firm in locking and capable of achieving the purpose of quick locking or unlocking.

To achieve the purpose, the utility model adopts the following technical scheme:

the door lock assembly of the present utility model includes:

the shell is internally provided with an installation space, and is also provided with a first installation hole and a second installation hole which are communicated with the installation space in the shell;

the lock tongue is slidably arranged in the installation space along a first direction; the lock tongue is provided with a switch inclined plane;

a first return spring configured to urge the tongue to have a movement tendency to extend out of the housing in the first direction;

the switch assembly comprises a button shaft, the button shaft penetrates through the second mounting hole, a first end of the button shaft is located outside the shell, and a second end of the button shaft is abutted to the switch inclined plane; the button shaft can axially slide along the second mounting hole, and the second end of the button shaft moves along the switch inclined plane so as to drive the lock tongue to extend or retract the shell through the first mounting hole.

Optionally, the switch assembly further includes a second return spring configured to urge the button shaft to have a tendency to move axially away from the locking bolt along the second mounting hole.

Optionally, the switch assembly further includes a switch limiter that can lock or unlock the button shaft with the housing to keep the locking tongue retracted into or extended out of the housing.

Optionally, the housing is further provided with a chute extending along the first direction;

the door lock assembly further comprises a puller, wherein the puller penetrates through the sliding groove and can slide along the sliding groove, and one end of the puller is fixedly connected with the lock tongue.

Optionally, the door lock assembly further comprises a guide sleeve, the guide sleeve is fixedly arranged on the shell, and the guide sleeve is sleeved on the outer side of the button shaft.

Optionally, the central bore of the guide sleeve includes a first bore section and a second bore section, the first bore section having an inner diameter that is smaller than an inner diameter of the second bore section.

Optionally, the button shaft includes a guide slidably disposed in the second bore section.

Optionally, the button shaft further includes:

an operation part, wherein a first end of the operation part is connected to a first end of the guide part, and a second end of the operation part is positioned outside the shell; the outer diameter of the operation part is smaller than that of the guide part; the operation part is slidably arranged on the first hole section;

the first end of the connecting part is connected with the second end of the guiding part, and the second end of the connecting part is abutted to the switch inclined plane.

Optionally, the door lock assembly further comprises a blocking piece, the blocking piece is of a ring-shaped structure, and the blocking piece is fixedly arranged on the second hole section and sleeved on the outer side of the connecting portion.

Optionally, an aircraft comprises a door comprising the door lock assembly.

The utility model has the beneficial effects that:

the door lock assembly provided by the utility model can realize the purpose of controlling the bolt to extend or retract into the shell through controlling the button shaft to axially stretch along the second mounting hole, thereby achieving the purpose of locking or unlocking, has simple structure and firm locking, and has fewer parts compared with the common door lock assembly with dozens of parts _， Therefore, the use and maintenance are also relatively convenient; the door lock assembly adopts a pure mechanical structure, does not need to rely on an on-machine power source, and can be kept stable in both locking and unlocking states.

According to the aircraft provided by the utility model, by applying the door lock assembly, the maintenance convenience of the cabin door can be improved, and the cabin door can be stably kept in a locked or unlocked state.

Drawings

FIG. 1 is a schematic view of the appearance of the present utility model;

FIG. 2 is a schematic diagram of an exploded construction of the present utility model;

FIG. 3 is a schematic view of the structure of the button shaft of the present utility model;

FIG. 4 is a schematic view of the guide sleeve structure of the present utility model;

fig. 5 is a schematic view of the structure of the closure of the present utility model.

In the figure:

1. a housing; 11. a first mounting hole; 12. a second mounting hole; 13. a chute;

2. a bolt;

3. a first return elastic member;

4. a switch assembly; 41. a button shaft; 411. an operation unit; 412. a connection part; 413. a guide part; 42. a second return elastic member; 43. a switch limiting member;

5. a guide sleeve; 51. a first bore section; 52. a second bore section;

6. a blocking member;

7. a drawing device.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

A first embodiment of the present application provides a door lock assembly.

As shown in fig. 1 and 2, the door lock assembly includes a housing 1, a latch bolt 2, a first return elastic member 3, and a switch assembly 4. The inside of the shell 1 is provided with an installation space for protecting parts inside; and a first mounting hole 11 and a second mounting hole 12 are opened in the housing 1. The spring bolt 2 is installed in the inside of casing 1, and spring bolt 2 is passed through the first mounting hole 11 on the casing 1 and is passed in and out casing 1 along the first direction slidable to be provided with the switch inclined plane on the spring bolt 2, reach the purpose that drives spring bolt 2 motion with this switch inclined plane. Wherein the first direction is the direction of arrow a. The first reset elastic piece 3 is arranged at the rear part of the lock tongue 2, and the first reset elastic piece 3 can enable the lock tongue 2 to always have a movement trend of extending out of the shell 1 along the first direction. The first return elastic member 3 is a spring, which is in a compressed state when the lock tongue 2 is retracted into the housing 1, and the lock tongue 2 can extend out of the housing 1 under the action of the elastic force thereof, so as to achieve the purpose of locking.

When the cabin door is changed from the opening state to the closing state, the cabin door frame presses the lock tongue 2, and at the moment, the pressing force is larger than the elastic force of the first reset elastic piece 3, so that the head of the lock tongue 2 is forced to enter the shell 1, and the first reset elastic piece 3 is compressed; the door frame of the cabin door is provided with a door latch corresponding to the door lock assembly, the door latch is provided with a door latch groove, when the cabin door is closed, the lock tongue 2 is aligned with the door latch groove, the extrusion force of the door frame disappears, and the first reset elastic piece 3 resets to eject the lock tongue 2, so that the lock tongue 2 is clamped in the door latch groove, and the locking of the cabin door can be completed.

When the cabin door is locked and the cabin door needs to be opened again, the unlocking function can be realized through the switch assembly 4, the switch assembly 4 is provided with a button shaft 41, the button shaft 41 penetrates through the second mounting hole 12, the first end of the button shaft 41 is positioned outside the shell 1, and the second end of the button shaft 41 is abutted against the switch inclined plane on the lock tongue 2. When unlocking, the button shaft 41 is pushed to enable the button shaft 41 to axially slide along the second mounting hole 12, the second end of the button shaft 41 presses the switch inclined plane on the lock tongue 2, and the pressing force is larger than the elastic force of the first reset elastic piece 3 at the moment, so that the lock tongue 2 is driven to retract into the shell 1 through the first mounting hole 11 on the shell 1, in other words, the lock tongue 2 is pulled out of the latch groove, and the unlocking operation is completed.

The door lock assembly of this embodiment realizes the control to the lock tongue 2 through the control button axle 41, reaches the purpose of locking or unlocking to the aircraft hatch door through the change of lock tongue 2 position, and this door lock assembly adopts mechanical structure, and its part quantity is few, simple structure has consequently promoted the reliability of door lock assembly by a wide margin to because part quantity is few, so also relatively convenient when needs maintenance.

Further, as shown in fig. 2 and 3, the second end of the button shaft 41 may be provided as a spherical surface, and the spherical surface abuts against the switch inclined surface on the lock tongue 2, in other words, the spherical surface is in point contact with the switch inclined surface, so that the friction force is small, and the lock tongue 2 is more easily retracted into the housing 1, so that unlocking is easier.

Further, as shown in fig. 2, the switch assembly 4 further includes a second return elastic member 42, and the second return elastic member 42 is illustratively a spring, which is disposed inside the guide sleeve 5 and is sleeved on the button shaft 41, so that the button shaft 41 always has a movement trend along the second mounting hole 12 axially away from the lock tongue 2. When unlocking is needed, the button shaft 41 is pressed, the pressing force is larger than the elastic force of the second reset elastic piece 42, and the button shaft 41 presses the lock tongue 2 through the switch inclined plane, so that the purpose of unlocking is achieved. After the unlocking is completed, the button shaft 41 is not pressed any more, and the second restoring elastic member 42 at this time can restore the button shaft 41 by elastic force.

Further, as shown in fig. 2, the switch assembly 4 further includes a switch limiting member 43, where the switch limiting member 43 is disposed on a side wall of the central hole of the guide sleeve 5 in a penetrating manner and is in threaded connection with the side wall, when the door lock assembly needs to be kept in an unlocked state, after the door lock assembly is unlocked, the switch limiting member 43 is used to clamp the first end of the button shaft 41, so that the button shaft 41 cannot be reset, at this time, the second reset elastic member 42 is always kept in a compressed state because the button shaft 41 is clamped by the switch limiting member 43, when the door lock assembly does not need to be kept in an unlocked state, the switch limiting member 43 can be reversed, and when the button shaft 41 is released, the button shaft 41 can be reset under the elastic force of the second reset elastic member 42.

Further, as shown in fig. 2, the door lock assembly further includes a puller 7, one end of the puller 7 is fixedly connected with the latch bolt 2, and a chute 13 extending along the first direction is further provided on the back surface of the housing 1, and the other end of the puller 7 passes through the chute 13 and can slide along the chute 13. It should be noted that the hatch has a first side and a second side opposite to each other, wherein the door lock assembly is disposed on the first side of the hatch, the hatch can be opened from the first side by operating the door lock assembly, the puller 7 is disposed on the second side of the hatch, when the hatch needs to be opened from the second side, the puller 7 can be pushed to drive the lock tongue 2 to move, and the first reset elastic member 3 is compressed, so that the lock tongue 2 is retracted into the housing 1 and is disengaged from the latch groove, thereby achieving the purpose of unlocking.

Further, as shown in fig. 2, the door lock assembly further includes a guide sleeve 5, in this embodiment, an axis of the guide sleeve 5 coincides with an axis of the second mounting hole 12, the guide sleeve 5 is fixedly provided to the housing 1, and the guide sleeve 5 may be connected to the housing 1 by a bolt or by welding, for example; and the guide sleeve 5 is sleeved on the outer side of the button shaft 41, and the axial movement of the button shaft 41 along the second mounting hole 12 is ensured not to deviate through the limit of the guide sleeve 5.

Further, as shown in fig. 2 to 3, the button shaft 41 includes an operation portion 411, a connection portion 412, and a guide portion 413.

The guide portion 413 is slidably disposed inside the guide sleeve 5, in other words, the guide portion 413 is slidably connected to the central hole of the guide sleeve 5, so that the button shaft 41 moves along the central hole of the guide sleeve 5 without being deviated.

The first end of the operation part 411 is connected to the first end of the guide part 413, and the second end of the operation part 411 is located outside the housing 1; the outer diameter of the operation part 411 is smaller than the outer diameter of the guide part 413; the entire button shaft 41 is driven by pressing the operation portion 411.

The first end of the connecting part 412 is connected with the second end of the guiding part 413, and the second end of the connecting part 412 is abutted with the switch inclined plane; to drive the movement of the bolt 2.

Alternatively, the operation portion 411, the connection portion 412 and the guide portion 413 may be designed as a split type and fixedly connected as a whole, or may be designed as an integral type.

Further, as shown in fig. 2 and 4, the center hole of the guide sleeve 5 includes a first hole section 51 and a second hole section 52, the operation portion 411 is slidably provided in the first hole section 51, the guide portion 413 is slidably provided in the second hole section 52, and the inner diameter of the second hole section 52 is equal to the outer diameter of the guide portion 413 of the button shaft 41, and the inner diameter of the first hole section 51 is smaller than the inner diameter of the second hole section 52; therefore, when the button shaft 41 is reset, only the operation part 411 of the button shaft 41 can pass through the first hole section 51, and the guide part 413 cannot pass through the first hole section 51, so that the button shaft 41 is prevented from being separated from the guide sleeve 5 during reset.

Further, as shown in fig. 2 to 5, the door lock assembly further includes a blocking member 6, the blocking member 6 is in a ring structure, the blocking member 6 is fixedly arranged at the second hole section 52 of the guide sleeve 5, the central hole of the blocking member 6 just can accommodate the connection portion 412 of the button shaft 41 to pass, but the guide portion 413 of the button shaft 41 cannot pass, so that when the button shaft 41 is pressed to move towards the direction approaching the lock tongue 2, the connection portion 412 of the button shaft 41 can press the switch inclined surface on the lock tongue 2 through the central hole of the blocking member 6 to drive the lock tongue 2 to move, and the guide portion 413 of the button shaft 41 cannot pass through the central hole of the blocking member 6 so as to prevent the button shaft 41 from being separated from the guide sleeve 5 along the direction approaching the lock tongue 2.

And one end of the second return elastic member 42 is fixedly connected with the blocking member 6. The second return spring 42 thus keeps the push button shaft 41 moving away from the locking bolt 2 along the second mounting hole 12.

The door lock assembly described in the first embodiment of the present application, which has a simple structure, is securely locked, and has a small number of parts compared to tens of parts of a general door lock assembly, by pressing the button shaft 41 to control the extension or retraction of the locking bolt 2 from or into the housing 1, thereby achieving the purpose of locking or unlocking _， Therefore, the use and maintenance are also relatively convenient; the door lock assembly adopts a pure mechanical structure, does not need to rely on an on-machine power source, and can be kept stable in both locking and unlocking states.

The second embodiment of the application provides an aircraft, and the aircraft includes the hatch door, and the hatch door includes the lock subassembly, through using this lock subassembly, can make the hatch door steadily keep locking or unblock state to this simple structure to the convenience that the hatch door was maintained has been improved.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. A door lock assembly, the door lock assembly comprising:

the shell body (1), wherein an installation space is formed in the shell body (1), the shell body (1) is further provided with a first installation hole (11) and a second installation hole (12), and the first installation hole (11) and the second installation hole (12) are communicated with the installation space in the shell body (1);

the lock tongue (2) is slidably arranged in the installation space along a first direction; the lock tongue (2) is provided with a switch inclined plane;

-a first return spring (3), the first return spring (3) being configured to press the bolt (2) with a movement tendency to extend out of the housing (1) in the first direction;

the switch assembly (4), the switch assembly (4) comprises a button shaft (41), the button shaft (41) is arranged in the second mounting hole (12) in a penetrating mode, the first end of the button shaft (41) is located outside the shell (1), and the second end of the button shaft (41) is abutted to the switch inclined plane; the button shaft (41) can axially slide along the second mounting hole (12) and enable the second end of the button shaft (41) to move along the switch inclined plane so as to drive the lock tongue (2) to extend or retract the shell (1) through the first mounting hole (11).

2. The door lock assembly according to claim 1, wherein the switch assembly (4) further comprises a second return spring (42), the second return spring (42) being configured to urge the button shaft (41) with a movement tendency axially away from the bolt (2) along the second mounting hole (12).

3. The door lock assembly according to claim 2, wherein the switch assembly (4) further comprises a switch limiter (43), the switch limiter (43) being capable of locking or unlocking the button shaft (41) with the housing (1) to keep the bolt (2) retracted into the housing (1) or extended out of the housing (1).

4. Door lock assembly according to claim 1, characterized in that the housing (1) is further provided with a chute (13) extending in the first direction;

the door lock assembly further comprises a puller (7), wherein the puller (7) is arranged in the sliding groove (13) in a penetrating mode and can slide along the sliding groove (13), and one end of the puller (7) is fixedly connected with the lock tongue (2).

5. The door lock assembly according to claim 1, further comprising a guide sleeve (5), wherein the guide sleeve (5) is fixedly arranged on the shell (1), and the guide sleeve (5) is sleeved on the outer side of the button shaft (41).

6. The door lock assembly according to claim 5, wherein the central bore of the guide sleeve (5) comprises a first bore section (51) and a second bore section (52), the first bore section (51) having an inner diameter smaller than the inner diameter of the second bore section (52).

7. The door lock assembly according to claim 6, wherein the button shaft (41) comprises a guide (413), the guide (413) being slidably provided to the second hole section (52).

8. The door lock assembly according to claim 7, wherein the button shaft (41) further comprises:

an operation part (411), wherein a first end of the operation part (411) is connected to a first end of the guide part (413), and a second end of the operation part (411) is positioned outside the shell (1); the outer diameter of the operation part (411) is smaller than the outer diameter of the guide part (413); the operation part (411) is slidably arranged on the first hole section (51);

and a connecting part (412), wherein a first end of the connecting part (412) is connected with a second end of the guiding part (413), and a second end of the connecting part (412) is abutted with the switch inclined plane.

9. The door lock assembly according to claim 8, further comprising a blocking piece (6), wherein the blocking piece (6) is of a ring-shaped structure, and the blocking piece (6) is fixedly arranged on the second hole section (52) and sleeved on the outer side of the connecting portion (412).

10. An aircraft comprising a door, wherein the door comprises a door lock assembly according to any one of claims 1 to 9.

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