CN215803865U

CN215803865U - Rotating bolt structure for door lock

Info

Publication number: CN215803865U
Application number: CN202121114533.4U
Authority: CN
Inventors: 杨文芳; 景乾英; 王宏安
Original assignee: AVIC First Aircraft Institute
Current assignee: AVIC First Aircraft Institute
Priority date: 2021-05-21
Filing date: 2021-05-21
Publication date: 2022-02-11
Anticipated expiration: 2031-05-21

Abstract

The utility model relates to the technical field of door locks, in particular to a rotating bolt structure for a door lock. The structure comprises a lock core 1, a pressure spring 3, a lock body 4, a small hexagonal thin nut 5, a rotating tongue 6 and a hexagonal bolt 7; the lock body 4 is a hollow cylinder, and the lock core 1 sleeved with the pressure spring 3 is arranged in a notch at the upper part of the lock body 4; the lock body 4 is arranged at the opening of the cabin door, the small hexagonal thin nut 5 is connected with the part of the lock body 4 extending out of the cabin door and clamps the cabin door, the hexagonal bolt 7 extends into the lock core 1, penetrates through the mounting hole of the lock tongue 6 and is in threaded connection with the lower part of the lock core 1, and clamps the lock tongue 6; the bolt 6 is provided with a boss which is propped against the lower end face of the lock body 4; the bottom end wall of the lock body 4 is divided into a high boss and a low boss, a convex tooth is arranged in the middle of the bottom surface of the low boss, and two sides of the tooth are in a groove shape.

Description

Rotating bolt structure for door lock

Technical Field

The utility model relates to the technical field of door locks, in particular to a rotating bolt structure for a door lock.

Background

When the small civil aircraft is parked on the ground, the cabin door needs to be locked in order to prevent external personnel from entering the cabin door, and the lock is unlocked in the flight process of the aircraft. The original aircraft does not have the requirement, the design is needed along with the increasing requirement on the safety of civil aircraft, the mechanism is required to be in an unlocking state in the air, and the mechanism cannot be locked due to vibration in the air flight process.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a rotating tongue structure for a door lock, which solves at least one defect of the prior door lock in the background art.

The technical scheme of the utility model is as follows:

a rotary bolt structure for a door lock comprises a lock core 1, a pressure spring 3, a lock body 4, a small hexagonal thin nut 5, a rotary bolt 6 and a hexagonal bolt 7;

the lock body 4 is a hollow cylinder, and the lock core 1 sleeved with the pressure spring 3 is arranged in a notch at the upper part of the lock body 4; the lock body 4 is arranged at the opening of the cabin door, the small hexagonal thin nut 5 is connected with the part of the lock body 4 extending out of the cabin door and clamps the cabin door, the hexagonal bolt 7 extends into the lock core 1, penetrates through the mounting hole of the lock tongue 6 and is in threaded connection with the lower part of the lock core 1, and clamps the lock tongue 6; the bolt 6 is provided with a boss which is propped against the lower end face of the lock body 4;

the bottom end wall of the lock body 4 is divided into a high boss and a low boss, a convex tooth is arranged in the middle of the bottom surface of the low boss, and two sides of the tooth are in a groove shape;

when the boss of the bolt 6 is arranged at the tooth, the bolt 6 is locked with the door frame, and the cabin door is locked; when the rotary lock cylinder 1 is pressed down, the boss of the lock tongue 6 is arranged at the groove on one side of the tooth, the cabin door is opened, the two bosses can be effectively limited in height, the lock tongue 6 cannot rotate randomly, and the lock tongue is ensured to be in an opening position; the small hexagonal thin nut and the hexagonal bolt are provided with fuse holes which can be fixed with the mounting structure; the unlocking tool presses the lock cylinder 1 downwards, and the lock cylinder 1, the bolt 6 and the hexagon bolt 7 can rotate in a relative structure, so that the cabin door can be opened and closed.

The structure further includes: an O-shaped sealing ring 2;

an annular groove is formed in the upper end of the lock cylinder 1, and the O-shaped sealing ring 2 is placed in the annular groove, so that the lock cylinder 1, the O-shaped sealing ring 2 and the lock body 4 are sealed.

The cylindrical lower end of the lock cylinder 1 is processed into a cube, and the diagonal line of the end face of the cube is the same as the diameter of the cylinder.

The lock core 1 is provided with a step below the groove, and the step surface is used as a pressure spring seat of the pressure spring 3.

The small hexagonal thin nut and the hexagonal bolt are provided with fuse holes and fixed with the mounting structure.

The lug bosses between the rotary bolt lock bodies are matched for use, so that the rotary bolt structure is in an opening or locking state.

The utility model has the advantages that: the utility model has simple structure, convenient operation, boss limit and reliable opening state position. The rotating tongue rotates 90 degrees under the working state, and the locking of the cabin door is effectively ensured.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Wherein: 1-lock core, 2-O type seal ring, 3-pressure spring, 4-lock body, 5-small hexagonal thin nut, 6-turning bolt and 7-hexagonal bolt.

Detailed Description

In order to make the implementation objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the utility model. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1, a rotary tongue structure for a door lock comprises a lock core 1, an O-shaped seal ring 2, a pressure spring 3, a lock body 4, a small hexagonal thin nut 5, a rotary tongue 6 and a hexagonal bolt 7.

The lock body 4 is a hollow cylinder, and the pressure spring 3, the O-shaped sealing ring 2 and the lock cylinder 1 are arranged in a notch at the upper part of the lock body 4; the lock body 4 is arranged at the opening of the cabin door, the small hexagonal thin nut 5 is connected with the lock body 4 through threads and clamps the cabin door structure, and the lower part of the lock core 1 is provided with an internal thread hole which is connected with a hexagonal bolt 7 and clamps a lock tongue 6; lock core 1 sets up an annular groove, put into this annular groove with O type sealing washer 2, in order to improve the leakproofness of product, lock body 4 has boss and recess, there are two recesses in the boss both sides, push down lock core 1, arrange spring bolt 6 in low platform department, hatch door locking, push down lock core 1, when arranging spring bolt 6 in low platform recess department, the hatch door is opened, two high and low bosses can be effectively spacing, make spring bolt 6 can not rotate at will, it has the fuse hole to guarantee that spring bolt is in the little hexagon nut of open position and hexagon bolt design, can be fixed with mounting structure. The unlocking tool presses the lock cylinder 1 downwards, and the lock cylinder 1, the bolt 6 and the hexagon bolt 7 can rotate in a relative structure, so that the cabin door can be opened and closed.

Finally, it should be pointed out that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A rotary bolt structure for a door lock is characterized by comprising a lock cylinder (1), a pressure spring (3), a lock body (4), a small hexagonal thin nut (5), a rotary bolt (6) and a hexagonal bolt (7);

the lock body (4) is a hollow cylinder, and the lock core (1) sleeved with the pressure spring (3) is arranged in a notch at the upper part of the lock body (4); the lock body (4) is arranged at the opening of the cabin door, the small hexagonal thin nut (5) is connected with the part of the lock body (4) extending out of the cabin door and clamps the cabin door, the hexagonal bolt (7) extends into the lock core (1), and the part of the hexagonal bolt penetrates through the mounting hole of the lock bolt (6) to be in threaded connection with the lower part of the lock core (1) and clamp the lock bolt (6); a boss is arranged on the lock tongue (6) and props against the lower end face of the lock body (4);

the bottom end wall of the lock body (4) is divided into a high boss and a low boss, a convex tooth is arranged in the middle of the bottom surface of the low boss, and two sides of the tooth are in a groove shape;

when the lug boss of the bolt (6) is arranged at the tooth position, the bolt (6) is locked with the door frame, and the cabin door is locked; when the rotary lock cylinder (1) is pressed down, the lug boss of the lock tongue (6) is arranged at the groove on one side of the tooth, the cabin door is opened, the high lug boss and the low lug boss can be effectively limited, so that the lock tongue (6) cannot rotate randomly, and the lock tongue is ensured to be in an opening position; the small hexagonal thin nut and the hexagonal bolt are provided with fuse holes which can be fixed with the mounting structure; the opening tool presses the lock cylinder (1) downwards, and the lock cylinder (1), the lock tongue (6) and the hexagon bolt (7) can rotate in a relative structure so as to meet the opening and closing of the cabin door.

2. The structure of claim 1, further comprising: an O-shaped seal ring (2);

an annular groove is formed in the upper end of the lock cylinder (1), and the O-shaped sealing ring (2) is placed in the annular groove, so that the lock cylinder (1), the O-shaped sealing ring (2) and the lock body (4) form sealing.

3. A structure according to claim 2, characterized in that the cylindrical lower end of the lock cylinder (1) is complementarily machined to be square, the end diagonal of the square being the same as the diameter of the cylinder.

4. Arrangement according to claim 2, characterized in that the lock cylinder (1) is provided with a step below the recess, the step surface acting as a pressure spring seat for the pressure spring (3).

5. The structure of claim 2, wherein the small hex-head nut and hex bolt are configured with a fuse hole for securing to a mounting structure.

6. The structure of claim 2, wherein the bosses between the tongue lock bodies cooperate to hold the tongue structure in either the unlocked or the locked position.