Portable trigger type covering cap lock

Abstract

The utility model discloses a portable trigger type covering cap lock, which comprises a fixed support plate, a movable support plate, a movable support plate and a lock body, wherein a through hole is vertically formed in the center of the fixed support plate in a penetrating manner; the locking rod is strip-shaped and located on the lower side of the fixed supporting plate, and the middle of the locking rod is hinged to the left end of the fixed supporting plate; the upper side of the left end of the spring bolt is hinged to the right end of the fixed supporting plate, the right end of the spring bolt is fixedly connected with an adjusting screw, the chain ring is located on the lower side of the fixed supporting plate, the left end of the chain ring is hinged to the right end of the lock rod, and the right end of the chain ring is hinged to the lower side of the left end of the spring bolt; the torsional spring is installed on the chain ring and used for driving the right end of the lock rod to rotate upwards with the hinge point of the lock rod and the fixed supporting plate as the center, and then the right end of the lock rod penetrates through the through hole to complete unlocking; the opening cover lock is easy and convenient to operate, unlocking and locking can be achieved only through one torsional spring, and due to the fact that the opening cover lock is small in size and light, the opening cover lock can obviously protrude out of an aircraft skin in the unlocking state, and observation of personnel is facilitated; in the locked state, the covering cap lock is not provided with a protruding part any more, and the covering cap lock and the aircraft skin are fused into a whole.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical locks, and in particular relates to a lightweight trigger-type cover lock. Background Technology

[0002] From an aircraft maintenance perspective, the opening of the hatch lock needs to be convenient and quick to address problems promptly and avoid unnecessary losses; the closing of the hatch lock needs to be secure and reliable, and must remain tightly closed during aircraft operation to prevent significant losses to personnel and equipment.

[0003] Most hatch locks on the market can achieve a secure closure, but they cannot achieve quick opening or closing; they also cannot accurately determine whether the hatch lock is fully locked; and they lack versatility. Existing trigger-type hatch locks have heavy bolts and require two torsion springs to unlock and lock, making them difficult to open and prone to jamming. Utility Model Content

[0004] The purpose of this invention is to provide a lightweight trigger-type cover lock to solve the problems of existing trigger-type cover locks having a heavy bolt and requiring two torsion springs to unlock and lock, thus making them difficult to open and prone to jamming.

[0005] This utility model adopts the following technical solution: a lightweight trigger-type cover lock, comprising:

[0006] A fixed support plate is horizontally installed, with a vertical through hole in its center;

[0007] The locking bar is strip-shaped and located on the lower side of the fixed support plate, with its middle part hinged to the left end of the fixed support plate;

[0008] The locking tongue is hinged to the right end of the fixed support plate on its upper left side, and an adjusting screw is fixedly connected to its right end. The locking tongue is used to rotate to the lower right of the locking bar when the locking bar is rotated upward, and to rotate upward to the right side of the locking bar when the locking bar is retracted. The adjusting screw is used to press against the inner wall of the machine body when locked and to maintain the locked state.

[0009] The chain link is located on the lower side of the fixed support plate. Its left end is hinged to the right end of the lock bar, and its right end is hinged to the lower side of the left end of the lock tongue.

[0010] The torsion spring is installed on the chain link. One end of the spring is hooked to the latch, and the other end is hooked to the right end of the lock bar. The torsion spring is used to drive the right end of the lock bar to rotate upward around the hinge point between it and the fixed support plate, so that the right end of the lock bar passes through the through hole and completes the unlocking.

[0011] Furthermore, the locking bar consists of an integrally connected pressing plate, front upright plate, rear upright plate and extension plate. The pressing plate is located on the left side of the fixed support plate, and the right end of the pressing plate is used to lock the bolt on the upper side of the fixed support plate after it retracts, thereby maintaining the locked state.

[0012] Furthermore, the front and rear uprights are parallel to each other and vertically arranged. The upper middle part of the front and rear uprights is recessed downward to form a receiving groove. The receiving groove is used to prevent the locking rod from interfering with the fixed support plate when it rotates upward. The pressing plate and the extending plate are both horizontally arranged and are integrally connected to the left and right ends of the rear upright of the front upright and the rear upright respectively.

[0013] Furthermore, a trigger plate is fixedly connected to the upper side of the pressing plate, and a snap button is fixedly connected to the upper side of the protruding plate.

[0014] Furthermore, the chain link is a U-shaped component with the opening facing upwards.

[0015] The beneficial effects of this utility model are:

[0016] This invention is simple and convenient to operate, requiring only a torsion spring to achieve locking and unlocking. Due to its small size and light weight, the hatch lock will protrude significantly from the aircraft skin when unlocked, making it easy for personnel to observe; when locked, the hatch lock will no longer have a protruding part and will be integrated with the aircraft skin. Attached Figure Description

[0017] Figure 1 This is an exploded view of the present invention;

[0018] Figure 2 This is a side view of the present invention in the locked state;

[0019] Figure 3 This is a top view of the locked state of this utility model.

[0020] Among them: 10. Fixed support plate; 11. Locking rod; 12. Locking tongue; 13. Adjusting screw; 14. Chain link; 15. Torsion spring; 16. Pressing plate; 17. Front upright plate; 18. Rear upright plate; 19. Extending plate; 20. Receiving groove; 21. Snap fastener; 22. Trigger plate. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0022] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more. The term "orientation" in this utility model refers to the orientation of the utility model within the... Figure 1 Description of the state's progression.

[0023] This utility model discloses a lightweight trigger-type cover lock, such as Figure 1-3 As shown, it includes a fixed support plate 10, a locking rod 11, a locking tongue 12, a chain link 14, and a torsion spring 15.

[0024] The fixed support plate 10 is horizontally set, and a through hole is vertically opened in the center of the fixed support plate 10; the locking rod 11 is strip-shaped, and the locking rod 11 is located on the lower side of the fixed support plate 10, and the middle part of the locking rod 11 is hinged to the left end of the fixed support plate 10.

[0025] The upper left side of the locking tongue 12 is hinged to the right side of the fixed support plate 10. The right side of the locking tongue 12 is fixedly connected to the adjusting screw 13. The locking tongue 12 is used to rotate to the lower right of the locking rod 11 when the locking rod 11 is rotated upward, and to rotate upward to the right side of the locking rod 11 when the locking rod 11 is retracted. The adjusting screw 13 is used to abut against the inner wall of the machine body when locked and to maintain the locked state.

[0026] The chain link 14 is located on the lower side of the fixed support plate 10. The left end of the chain link 14 is hinged to the right end of the locking bar 11, and the right end of the chain link 14 is hinged to the lower side of the left end of the locking tongue 12.

[0027] The torsion spring 15 is installed on the chain link 14. One end of the torsion spring 15 is hooked on the lock tongue 12, and the other end of the torsion spring 15 is hooked on the right end of the lock bar 11. The torsion spring 15 is used to drive the right end of the lock bar 11 to rotate upward around the hinge point between it and the fixed support plate 10, so that the right end of the lock bar 11 passes through the through hole and completes the unlocking.

[0028] The locking bar 11 consists of a pressing plate 16, a front upright plate 17, a rear upright plate 18, and an extension plate 19 that are integrally connected. The pressing plate 16 is located on the left side of the fixed support plate 10. The right end of the pressing plate 16 is used to lock the tongue 12 on the upper side of the fixed support plate 10 after it is retracted, thereby maintaining the locked state.

[0029] The front upright plate 17 and the rear upright plate 18 are parallel to each other and vertically arranged. The upper middle part of the front upright plate 17 and the rear upright plate 18 is recessed downward to form a receiving groove 20. The receiving groove 20 is used to prevent the locking rod 11 from interfering with the fixed support plate 10 when it rotates upward. The pressing plate 16 and the extending plate 19 are both horizontally arranged and are integrally connected to the left and right ends of the rear upright plate 18 of the front upright plate 17, respectively.

[0030] A trigger plate is fixedly connected to the upper side of the pressing plate 16, and a snap button 21 is fixedly connected to the upper side of the protruding plate 19. The chain link 14 is a U-shaped piece with the opening facing upward.

[0031] This utility model is simple and convenient to operate. It only requires a torsion spring 15 to achieve locking and unlocking. Due to its small size and light weight, the cover lock will protrude significantly from the aircraft skin when unlocked, making it easy for personnel to observe. When locked, the cover lock will no longer have a protruding part and will be integrated with the aircraft skin.

[0032] In this utility model, the connection relationships between the locking rod 11 and the fixed support plate 10, the connection relationships between the chain link 14 and the locking rod 11, the connection relationships between the chain link 14 and the locking tongue 12, and the connection relationships between the locking tongue 12 and the fixed support plate 10 are four-way linkages. These four relationships mutually restrict, interfere with, and influence each other.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lightweight trigger-type hatch lock, characterized in that, include: A fixed support plate (10) is horizontally set, with a through hole vertically extending through its center; The locking rod (11) is strip-shaped and located on the lower side of the fixed support plate (10), with its middle part hinged to the left end of the fixed support plate (10); The locking tongue (12) is hinged to the right end of the fixed support plate (10) on its upper left side, and an adjusting screw (13) is fixedly connected to its right end. The locking tongue (12) is used to rotate to the lower right of the locking rod (11) when the locking rod (11) rotates upward, and to rotate upward to the right side of the locking rod (11) when the locking rod (11) retracts. The adjusting screw (13) is used to abut against the inner wall of the machine body when locked and to maintain the locked state. The chain link (14) is located on the lower side of the fixed support plate (10), with its left end hinged to the right end of the locking rod (11) and its right end hinged to the lower side of the left end of the locking tongue (12). A torsion spring (15) is installed on the chain link (14), with one end hooked on the lock tongue (12) and the other end hooked on the right end of the lock bar (11). The torsion spring (15) is used to drive the right end of the lock bar (11) to rotate upward with its hinge point with the fixed support plate (10) as the center, so that the right end of the lock bar (11) passes through the through hole and completes the unlocking.

2. A lightweight trigger-type cover lock according to claim 1, characterized in that, The locking bar (11) is composed of a pressing plate (16), a front upright plate (17), a rear upright plate (18), and an extension plate (19) that are integrally connected. The pressing plate (16) is located on the left side of the fixed support plate (10). The right end of the pressing plate (16) is used to lock the tongue (12) on the upper side of the fixed support plate (10) after it is retracted, thereby maintaining the locked state.

3. A lightweight trigger-type cover lock according to claim 2, characterized in that, The front upright plate (17) and the rear upright plate (18) are parallel to each other and vertically arranged. The upper middle part of the front upright plate (17) and the rear upright plate (18) is recessed downward to form a receiving groove (20). The receiving groove (20) is used to avoid interference with the fixed support plate (10) when the locking rod (11) rotates upward. The pressing plate (16) and the extension plate (19) are both horizontally arranged and are integrally connected to the left and right ends of the rear upright plate (18) of the front upright plate (17).

4. A lightweight trigger-type cover lock according to claim 2, characterized in that, A trigger plate is fixedly connected to the upper side of the pressing plate (16), and a snap button (21) is fixedly connected to the upper side of the protruding plate (19).

5. A lightweight trigger-type cover lock according to claim 1, characterized in that, The chain link (14) is a U-shaped piece with the opening facing upwards.

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