阅读说明：本技术 一种航空闭合锁扣 (Aviation closed lock catch ) 是由 储德宝 祁飞 李健 贾志承 高晶晶 于 2020-12-31 设计创作，主要内容包括：本发明公开了一种航空闭合锁扣,包括手柄、锁紧机构、锁钩和触发器；所述手柄具有容纳腔,所述触发器设置在所述容纳腔内；所述锁紧机构与所述手柄容纳腔端部铰接,锁紧机构,侧壁设置有锁紧机构销轴；所述锁紧机构销轴与所述触发器上的卡槽配合对锁紧机构进行锁紧和松开；铰接连接处设置有用于推动锁紧机构在松开时自动弹开的外臂扭转弹簧；所述锁钩与锁紧机构端部连接。通过自身的开合以实现锁紧机构的锁紧和松开。解决了目前市场没有相关产品,此产品可以运用到航空发动机外部短舱、飞机舱门等重要部位。(The invention discloses an aviation closing lock catch which comprises a handle, a locking mechanism, a lock hook and a trigger, wherein the handle is connected with the locking mechanism; the handle is provided with a containing cavity, and the trigger is arranged in the containing cavity; the locking mechanism is hinged with the end part of the handle accommodating cavity, and a locking mechanism pin shaft is arranged on the side wall of the locking mechanism; the locking mechanism pin shaft is matched with the clamping groove on the trigger to lock and unlock the locking mechanism; the hinged joint is provided with an outer arm torsion spring for pushing the locking mechanism to automatically spring open when the locking mechanism is loosened; the latch hook is connected with the end part of the locking mechanism. The locking and the unlocking of the locking mechanism are realized through self opening and closing. The problem that no related product exists in the current market is solved, and the product can be applied to important parts such as an external nacelle of an aero-engine, an aircraft cabin door and the like.)

1. An aviation closing lock catch is characterized by comprising a handle (1), a locking mechanism (3), a lock hook (6) and a trigger (9);

the handle (1) is provided with a containing cavity, and the trigger (9) is arranged in the containing cavity;

the locking mechanism (3) is hinged with the end part of the accommodating cavity of the handle (1), and a locking mechanism pin shaft (4) is arranged on the side wall of the locking mechanism (3); the locking mechanism pin shaft (4) is matched with a clamping groove on the trigger (9) to lock and unlock the locking mechanism (3); the hinged joint is provided with an outer arm torsion spring (12) for pushing the locking mechanism (3) to automatically spring open when being loosened;

the lock hook (6) is connected with the end part of the locking mechanism (3).

2. An aviation closure latch as claimed in claim 1, wherein the end of the locking mechanism (3) has a blind hole, the outer wall of the end is provided with a first sliding groove (20) which is communicated with the blind hole and is along the axial direction, the end of the locking hook (6) is placed in the blind hole, and the end of the locking hook (6) is connected with the first sliding groove (20) by means of a pin (5).

3. An aviation closure latch as claimed in claim 2, wherein an adjusting nut (16) is provided in the blind hole of the locking mechanism (3), the end of the latch hook (6) comprises a rotating shaft (21) and a screw (22) which are movably coupled, the pin (5) is provided on the rotating shaft (21), and the screw (22) is in threaded connection with the adjusting nut (16).

4. An aviation closure latch as claimed in claim 3, wherein a steel ball (17) and a compression spring (18) are further disposed in the blind hole of the locking mechanism (3), the compression spring (18) is disposed in the mounting hole and elastically connected to the steel ball (17), and the steel ball (17) is in contact with the end of the compression spring (18).

5. An aerial closure shackle as claimed in claim 1, characterised in that the locking mechanism (3) is hinged to the end of the receiving cavity of the handle (1) by means of a bushing (14), the bushing (14) being provided with a trigger bushing (13) and a pin bushing (15).

6. An aerial closure hasp according to claim 5, wherein the inner side wall of the accommodating cavity of the handle (1) is further provided with a second sliding groove (23), the second sliding groove (23) is provided with a bushing (8), and the bushing (8) is connected with the bushing shaft (14) through a chain ring (7).

7. An aerial closure hasp as claimed in claim 1 wherein said trigger (9) is fixed in handle (1) by spacer plate (10) and trigger pin (11); and a parallel double-torsion spring (19) is arranged on the trigger pin shaft (11).

8. An aircraft closure shackle as claimed in claim 1, characterised in that the inner wall of the handle (1) is provided with a limit rivet (2-1) for limiting the maximum rotation angle of the locking mechanism (3).

9. An aerial closure hasp as claimed in claim 1 wherein said locking mechanism pin (4) is knurled and said locking mechanism pin (4) is connected to said locking mechanism (3) by interference fit.

10. An aerial closure hasp as claimed in claim 1 wherein there are two triggers (9) and two locking mechanism pins (4), two triggers (9) being located on either side of the receiving cavity and two locking mechanism pins (4) being located on either side of the locking mechanism (3).

Technical Field

The invention belongs to the technical field of aerospace and relates to an aviation closing lock catch.

Background

The fastening and fixing products of the airplane and the engine, in particular to important parts such as an external nacelle of an aircraft engine, a cabin door of the airplane and the like. There is no related product of the closed lock catch, and the product is not convenient to fix and has no related self-locking function.

Therefore, it is urgently needed to design a closing and locking device which can be used for an external nacelle and an aircraft door of an aircraft engine.

Disclosure of Invention

In order to solve the problem that products are inconvenient to fasten and fix in the prior art, the invention provides an aviation closing lock catch, which is a product capable of realizing disassembly, assembly, maintenance and stable work of a locking position by opening and closing the lock catch, and has a self-locking function.

In order to achieve the purpose, the invention adopts the technical scheme that:

an aviation closing lock catch comprises a handle, a locking mechanism, a lock hook and a trigger;

the handle is provided with a containing cavity, and the trigger is arranged in the containing cavity;

the locking mechanism is hinged with the end part of the handle accommodating cavity, and a locking mechanism pin shaft is arranged on the side wall of the locking mechanism; the locking mechanism pin shaft is matched with the clamping groove on the trigger to lock and unlock the locking mechanism; the hinged joint is provided with an outer arm torsion spring for pushing the locking mechanism to automatically spring open when the locking mechanism is loosened;

the latch hook is connected with the end part of the locking mechanism.

As a further improvement of the invention, the end part of the locking mechanism is provided with a blind hole, the outer wall of the end part is provided with a first sliding groove which is communicated with the blind hole and is arranged along the axial direction, the end part of the lock hook is arranged in the blind hole, and the end part of the lock hook is connected with the first sliding groove through a pin.

As a further improvement of the invention, an adjusting nut is arranged in a blind hole of the locking mechanism, the end part of the lock hook comprises a rotating shaft and a screw rod which are movably coupled, the pin is arranged on the rotating shaft, and the screw rod is in threaded connection with the adjusting nut.

As a further improvement of the invention, a steel ball and a compression spring are arranged in a blind hole of the locking mechanism, the compression spring is arranged in the mounting hole and is elastically connected with the steel ball, and the steel ball is contacted with the end part of the compression spring.

As a further improvement of the invention, the locking mechanism is hinged with the end part of the handle accommodating cavity through a bush shaft, and a trigger bush and a pin shaft bush are arranged on the bush shaft.

As a further improvement of the invention, the inner side wall of the handle accommodating cavity is also provided with a second sliding groove, the second sliding groove is provided with a bushing, and the bushing is connected with the bushing through a chain ring.

As a further improvement of the invention, the trigger is fixed in the handle through a clapboard and a trigger pin shaft; and a parallel double-torsion spring is arranged on the trigger pin shaft.

As a further improvement of the invention, the inner wall of the handle is provided with a limit rivet used for limiting the maximum rotation angle of the locking mechanism.

As a further improvement of the invention, the locking mechanism pin shaft is processed by knurling, and the locking mechanism pin shaft is connected with the locking mechanism in an interference assembly manner.

As a further improvement of the invention, two triggers and two locking mechanism pin shafts are arranged, the two triggers are arranged on two sides of the accommodating cavity, and the two locking mechanism pin shafts are arranged on two side walls of the locking mechanism.

Compared with the prior art, the invention has the following beneficial effects:

the invention relates to an aviation closed lock catch, belonging to the field of aerospace, which is used for fastening and fixing products of airplanes and engines, and is particularly hinged with the end part of a handle accommodating cavity through a locking mechanism, wherein a locking mechanism pin shaft is arranged on the side wall of the locking mechanism; the locking mechanism pin shaft is matched with the clamping groove on the trigger to lock and unlock the locking mechanism; the hinged joint is provided with an outer arm torsion spring for pushing the locking mechanism to automatically spring open when the locking mechanism is loosened; the locking and the unlocking of the locking mechanism are realized through self opening and closing. The problem that no related product exists in the current market is solved, and the product can be applied to important parts such as an external nacelle of an aero-engine, an aircraft cabin door and the like.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1: an appearance drawing of the closed lock catch;

FIG. 2: structure diagram of the closed lock catch;

FIG. 3: a left view of the closure latch;

FIG. 4: fig. 3 is an internal structural view partially in section along the line a-a.

Wherein: 1-handle, 2-rivet, 3-locking mechanism, 4-locking mechanism pin shaft, 5-rivet, 6-locking hook, 7-chain ring, 8-bushing, 9-trigger, 10-clapboard, 11-trigger pin shaft, 12-outer arm torsion spring, 13-trigger bushing, 14-bushing, 15-pin shaft bushing, 16-adjusting nut, 17-steel ball, 18-compression spring and 19-parallel double-torsion spring.

Detailed Description

In order to make the objects and technical solutions of the present invention clearer and easier to understand. The present invention will be described in further detail with reference to the following drawings and examples, wherein the specific examples are provided for illustrative purposes only and are not intended to limit the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings and specific embodiments, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the invention without making creative efforts, fall within the scope of the invention.

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

The closed lock catch comprises a handle 1, a rivet 2, a locking mechanism 3, a locking mechanism pin shaft 4, a pin 5, a lock hook 6, a chain ring 7, a bushing 8, a trigger 9, a partition plate 10, a trigger pin shaft 11, an outer arm torsion spring 12, a trigger bushing 13, a bushing 14, a pin shaft bushing 15, an adjusting nut 16, a steel ball 17, a compression spring 18, a parallel double-torsion spring 19 and the like. Through the cooperation of each spare part, make the hasp reach with the locking and unclamping of self opening and shutting in order to realize locking mechanism 3. The outer arm torsion spring 12 allows the latch to automatically spring open when released.

An aviation closure shackle, the appearance and shape of which is shown in figure 1. Comprises a handle 1, a locking mechanism 3, a latch hook 6 and a trigger 9; the handle 1 has a receiving cavity in which the trigger 9 is disposed;

the locking mechanism 3 is hinged with the end part of the accommodating cavity of the handle 1, and a locking mechanism pin shaft 4 is arranged on the side wall of the locking mechanism 3; the locking mechanism pin shaft 4 is matched with a clamping groove on the trigger 9 to lock and unlock the locking mechanism 3; the hinged joint is provided with an outer arm torsion spring 12 for pushing the locking mechanism 3 to automatically spring open when being loosened; the structure of the closed lock catch is shown in figure 2. The locking and the unlocking of the lock catch are realized through the trigger 9 and the locking mechanism pin shaft 4. The locking hook 6 is connected with the end part of the locking mechanism 3.

The handle 1 can make the lock catch save more labor when being locked, and plays a lever role.

The structure of each part of the closure catch, see fig. 2 to 4, is shown. The assembly method of the closing lock parts is shown in fig. 2 to 4. The end part of the locking mechanism 3 is provided with a blind hole, the outer wall of the end part is provided with a first sliding groove 20 communicated with the blind hole and along the axial direction, the end part of the locking hook 6 is arranged in the blind hole, and the end part of the locking hook 6 is connected with the first sliding groove 20 through a pin 5. The locking mechanism 3, the adjusting nut 16 and the locking hook 6 are used for realizing that the lock catch can be adjusted along the length direction. The pin 5 and the locking mechanism 3 act to enable the locking hook 6 to move along a straight line.

An adjusting nut 16 is arranged in a blind hole of the locking mechanism 3, the end part of the locking hook 6 comprises a rotating shaft 21 and a screw rod 22 which are movably coupled, the pin 5 is arranged on the rotating shaft 21, and the screw rod 22 is in threaded connection with the adjusting nut 16.

And a steel ball 17 and a compression spring 18 are further arranged in the blind hole of the locking mechanism 3, the compression spring 18 is arranged in the mounting hole and is elastically connected with the steel ball 17, and the steel ball 17 is in contact with the end part of the compression spring 18. The compression spring 18 and the steel ball 17 simultaneously act on the adjusting nut 16, so that the adjusting nut 16 can adjust the locking hook 6 to move along a straight line or be locked.

The adjusted length can be locked by adjusting the nut 16, the steel ball 17 and the compression spring 18.

The connecting structure and mutual position relationship of the closing lock parts are shown in fig. 2 and 4. The locking mechanism 3 is hinged with the end part of the accommodating cavity of the handle 1 through a lining shaft 14, and a trigger bushing 13 and a pin shaft bushing 15 are arranged on the lining shaft 14. The inner side wall of the accommodating cavity of the handle 1 is also provided with a second sliding chute 23, the second sliding chute 23 is provided with a bushing 8, and the bushing 8 is connected with the bushing 14 through a chain ring 7. The link 7 may connect the bushing 8 and the locking mechanism 3 together, greatly increasing the tensile strength of the bushing.

In a preferred embodiment, the trigger 9 is fixed in the handle 1 through a partition 10 and a trigger pin 11; a parallel double-torsion spring 19 is arranged on the trigger pin shaft 11.

As a preferred embodiment, the inner wall of the handle 1 is provided with a limit rivet 2-1 for limiting the maximum rotation angle of the locking mechanism 3. The limit rivet 2-1 can stop the locking mechanism 3 when rotating to 90 degrees, so as to play a positioning role.

In a preferred embodiment, the locking mechanism pin shaft 4 is processed by knurling, and the locking mechanism pin shaft 4 is connected with the locking mechanism 3 in an interference fit manner. The locking mechanism pin shaft 4 is in interference fit with the locking mechanism 3 by adopting a knurling process.

In a preferred embodiment, two triggers 9 and two locking mechanism pins 4 are arranged, two triggers 9 are arranged on two sides of the accommodating cavity, and two locking mechanism pins 4 are arranged on two side walls of the locking mechanism 3.

The handle 1, the locking mechanism 3, the locking mechanism pin shaft 4, the locking hook 6, the chain ring 7, the bushing 8, the trigger 9, the partition plate 10, the trigger pin shaft 11, the outer arm torsion spring 12, the trigger bushing 13, the bushing 14, the pin shaft bushing 15, the adjusting nut 16 and the steel ball 17 are passivated.

The trigger pin shaft 11 is the strength of the limit rivet 2-3. The rivet 2-1, the rivet 2-2 and the rivet 2-3 are riveted together and assembled with the handle 1.

The handle 1, the rivet 2, the locking mechanism 3, the locking mechanism pin shaft 4, the pin 5, the latch hook 6, the chain ring 7, the bushing 8, the trigger 9, the partition plate 10, the trigger pin shaft 11, the trigger bushing 13, the bushing 14, the pin shaft bushing 15 and the adjusting nut 16 are made of stainless steel; the outer arm torsion spring 12, the compression spring 18 and the parallel double-torsion spring 19 are made of stainless steel spring wires; the steel ball 17 is made of 440C material.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiments according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.

Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can make modifications and equivalents to the specific embodiments of the present invention without departing from the spirit and scope of the present invention, which is set forth in the following claims.