Quarter rotation quick-release lock

Abstract

The utility model belongs to the field of airplane structure design, and relates to a quarter-turn quick-release lock which comprises a knob cap, a rotating rod, a spring, a lock seat and a mounting plate, the lock seat is fixed on an airplane body, a through hole is formed in the lock seat, clamping grooves are formed in the middle sections of the two side walls of the through hole and used for limiting a lock pin, a limiting table is arranged in the clockwise direction of each clamping groove, and the limiting table is fixed on the mounting plate. The limiting table is lower than the end face of the lock seat; positioning pins are arranged at the lower ends of the knob caps; a rotating rod through hole is formed in the mounting plate, a positioning pin hole is formed in the outer side of the rotating rod through hole, the rotating rod penetrates through the rotating rod through hole, and a lock pin is arranged at the lower end of the rotating rod; one end of the spring contacts with the mounting plate, and the other end contacts with the knob cap; the knob cap is fixedly connected with the rotating rod.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of aircraft structure design, and relates to a quarter-turn quick-release lock, which is used for electronic case products, such as electronic products with data cards, and the data cards need to be extracted at any time, and the data cards are in the case, so a hatch needs to be opened, and a lock is needed for the opening and closing of the hatch, and the design is a quick-release lock. BACKGROUND

[0002] A certain aircraft data recorder product is provided with a data card, the data card is extracted at any time for reading data, the data card needs to be covered by a hatch after being extracted, the data card cannot be fixed by using screws, and the quick release cannot use tools, and the quarter-turn quick-release lock is designed under the above conditions. CONTENT OF THE UTILITY MODEL

[0003] The utility model discloses a quarter-turn quick-release lock, and realizes quick release.

[0004] TECHNICAL SCHEME

[0005] A quarter-turn quick-release lock comprises a knob cap, a rotating rod, a spring, a lock seat and a mounting plate, wherein

[0006] The lock seat 4 is fixed on a machine body, the lock seat is provided with a through hole, the middle section of the two side walls of the through hole is provided with a clamping groove for limiting a lock pin, a limiting table is arranged in the clockwise direction of each clamping groove, and the limiting table is lower than the end face of the lock seat; the lower end of the knob cap is provided with a positioning pin; the mounting plate is provided with a rotating rod through hole, a positioning pin hole is arranged outside the rotating rod through hole, the rotating rod passes through the rotating rod through hole, and the lower end of the rotating rod is provided with a lock pin; one end of the spring is in contact with the mounting plate, and the other end of the spring is in contact with the knob cap; the knob cap and the rotating rod are connected and fixed,

[0007] The spring exerts a spring force, the knob cap is pressed to make the rotating rod exert an upward and downward force, the knob cap drives the rotating rod to slide in the 90° positioning pin hole of the mounting plate, the rotating rod is inserted into the lock seat, the spring exerts a spring force to make the rotating rod sink into the clamping groove of the lock seat or slide out of the clamping groove, and locking and disengagement are realized.

[0008] Preferably, the positioning pin groove is two and symmetrically arranged.

[0009] Preferably, the knob cap and the rotating rod are connected by screws.

[0010] Preferably, the lock pin does not come out of the end face of the lock seat in the compressed and coiled state of the spring.

[0011] Preferably, the mounting plate is provided with a spring limiting groove.

[0012] Preferably, the lower end of the knob cap is provided with a spring limiting groove.

[0013] Advantages:

[0014] The quarter-turn quick-release lock is used for locking the data card cabin door of the electronic case product, and the data card cabin door can be disassembled without tools, and quick release is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic view of the quarter-turn quick-release lock of the utility model;

[0016] Figure 2 It is a schematic view of the cabin door in an open state;

[0017] Figure 3 It is a schematic view of the cabin door in a closed state;

[0018] Figure 4 It is a schematic view of the bottom surface of the lock seat in the closed state of the cabin door;

[0019] Figure 5 It is an exploded view of the quarter-turn quick-release lock of the utility model;

[0020] Figure 6 It is another exploded view of the quarter-turn quick-release lock of the utility model.

[0021] Among them, the knob cap 1, the rotating rod 2, the spring 3, the lock seat 4, and the mounting plate 5. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme in the embodiments of the present application will be described in more detail below in combination with the drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. The embodiments of the present application will be described in detail below in combination with the drawings.

[0023] In the description of the utility model, it is understood that the orientation or position relation indicated by the terms "center", "axial direction", "vertical", "upper", "lower", "upper end", "bottom end", "inner", "outer" and the like is the orientation or position relation shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the protection scope of the utility model.

[0024] As Figures 1 to 6 The utility model discloses a quarter turn quick release lock, including: knob cap 1, rotating rod 2, spring 3, lock seat 4, mounting plate 5, wherein, lock seat 4 is fixed on the machine body, be provided with through -hole on lock seat 4, and the through -hole two lateral wall medium section is provided with the clamping slot for the limit of lock pin, and the clockwise direction of every clamping slot is provided with the limit platform, and the limit platform height is lower than the end surface of lock seat 4;The lower end of knob cap 1 is provided with a positioning pin;Mounting plate 5 is provided with rotating rod through -hole, and the rotating rod through -hole outside is provided with positioning pin hole, and rotating rod 2 passes through rotating rod through -hole, and the lower end of rotating rod 2 is provided with lock pin;One end of spring 3 contacts with mounting plate 5, and the other end of spring 3 contacts with knob cap 1;Knob cap 1 and rotating rod 2 are connected fixedly, spring 3 exerts spring force, presses knob cap 1 and makes rotating rod 2 up and down force, and knob cap 1 drives rotating rod 2 to slide in the 90 of mounting plate 5 Positioning pin hole, and rotating rod 2 is inserted into lock seat 4, and spring 3 exerts spring force and makes rotating rod 2 in lock seat 4 can sink into lock seat 4 clamping slot or slide out clamping slot, realizes locking and disengagement.

[0025] Preferably, the positioning pin slot is two and symmetrically arranged.

[0026] Preferably, the knob cap 1 and the rotating rod 2 are connected by screws.

[0027] Preferably, the lock pin does not fall out of the end surface of the lock seat 4 when the spring 3 is compressed and coiled.

[0028] Preferably, the mounting plate 5 is provided with a spring limiting groove.

[0029] Preferably, the lower end of the knob cap 1 is provided with a spring limiting groove.

[0030] In practical application, the quarter turn quick release lock is used for the data card cabin door lock of the airborne equipment data recorder, and has been used in products and passed various tests, and is also under continuous improvement, and has reached better performance.

[0031] In summary, the core of the utility model is quick release, which realizes tool-free quick release and avoids the possibility of dropping screws and tools on the airplane.

[0032] The above-described embodiments only express the preferred embodiments of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be noted that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the scope of protection of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A quarter-turn quick release lock characterized by, Include: Knob cap (1), rotating rod (2), spring (3), lock seat (4), mounting plate (5), wherein, The lock seat (4) is fixed on the machine body, the lock seat (4) is provided with a through hole, the middle part of the two side walls of the through hole is provided with a clamping groove for limiting the lock pin, the clockwise direction of each clamping groove is provided with a limiting table, the limiting table height is lower than the end face of the lock seat (4); The lower end of the knob cap (1) is provided with a positioning pin; The mounting plate (5) is provided with a rotating rod through hole, a positioning pin hole is arranged outside the rotating rod through hole, the rotating rod (2) passes through the rotating rod through hole, the lower end of the rotating rod (2) is provided with a lock pin; One end of the spring (3) is in contact with the mounting plate (5), the other end of the spring (3) is in contact with the knob cap (1); The knob cap (1) and the rotating rod (2) are connected and fixed, The spring (3) exerts a spring force, presses the knob cap (1) to make the rotating rod (2) up and down force, the knob cap (1) drives the rotating rod (2) to slide in the 90° positioning pin hole of the mounting plate (5), the rotating rod (2) is inserted into the lock seat (4), the spring (3) exerts a spring force to make the rotating rod (2) in the lock seat (4) can be inserted into the lock seat (4) clamping groove or slide out of the clamping groove, realize locking and disengaging.

2. The quarter-turn fastener of claim 1, wherein: The positioning pin groove is two and symmetrically arranged.

3. The quarter-turn fastener of claim 1, wherein: The knob cap (1) and the rotating rod (2) are connected by screws.

4. The quarter-turn fastener of claim 1, wherein, The spring (3) is compressed and coiled, the lock pin does not come out of the end face of the lock seat (4).

5. The quarter-turn fastener of Claim 1, wherein, The mounting plate (5) is provided with a spring limiting groove.

6. The quarter-turn fastener of Claim 1, wherein, The lower end of the knob cap (1) is provided with a spring limiting groove.

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