Triggered dual-seal push cap lock

Abstract

The utility model belongs to the technical field of aircraft parts, concretely relates to a trigger type double-sealing press cover lock, which comprises a support, a through hole is arranged on the surface of the support, a rotating part is arranged in the interior of the support, a first pressing part is arranged on the exterior of the support and is connected with the rotating part, a second pressing part is arranged in the through hole of the support, a lock tongue is arranged in the interior of the support and is connected with the second pressing part, the lock tongue is connected with the rotating part, a telescopic stop part is connected with the lock tongue and abuts against the external locked part at the end of the telescopic stop part. The utility model solves the problem of frequent sticking of the existing press lock due to the complex structure and the problem of the difficulty in controlling the bearing capacity of the connecting rod mechanism, which causes the problem of the inability to open the lock.

Description

Technical Field

[0001] This utility model belongs to the field of aircraft parts technology, specifically relating to a trigger-type double-seal press-fit cover lock. Background Technology

[0002] The push-button lock on an aircraft is a locking device used for components such as cabin doors and storage compartment doors. It achieves quick locking and unlocking through a pressing operation to ensure the stability of the component's closure. It is a key component to ensure the safety of the cabin structure and ease of use during flight.

[0003] Existing push-button locks suffer from several drawbacks. Firstly, their complex structure and low reliability make them prone to jamming during frequent use. Secondly, the difficulty in controlling the load-bearing capacity of the linkage mechanism can lead to lock failure. Therefore, a new push-button lock is urgently needed. Utility Model Content

[0004] The purpose of this utility model is to provide a simple trigger-type double-seal press-type cover lock that can reduce jamming and control the load-bearing capacity of the connecting rod.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A trigger-type double-seal push-button cover lock, comprising:

[0007] The bracket has through holes on its surface;

[0008] A rotating part, which is rotatably disposed inside the bracket;

[0009] The first pressing part is disposed on the outside of the bracket and is linked to the rotating part;

[0010] The second pressing part is inserted into the through hole of the bracket;

[0011] The locking tongue is rotatably disposed inside the bracket and is linked to the second pressing part; the locking tongue is engaged with the rotating part.

[0012] A telescopic stop is provided, which is connected to the locking tongue, and the end of the telescopic stop abuts against the external locked component.

[0013] During operation, pressing the first pressing part causes the rotating part to rotate along its own axis, gradually disengaging the locking tongue from the limiting position of the rotating part. After the locking tongue disengages from the limiting position, the second pressing part rotates around its own axis to the outside of the bracket under the action of the restoring force, causing the telescopic stop part to separate from the external locked component, thus completing the unlocking process.

[0014] Furthermore, the bracket is connected to the rotating part via a first rotating shaft; the bracket is connected to the locking tongue via a second rotating shaft.

[0015] Furthermore, the rotating part includes:

[0016] The U-shaped press arm has two supporting arms on both sides connected to the shaft of the first rotating shaft, and the connecting beam of the U-shaped press arm is connected to the first pressing part.

[0017] The first torsion spring is mounted on the shaft of the first rotating shaft, with one end abutting against the connecting beam of the U-shaped arm and the other end connected to the end of the second rotating shaft.

[0018] Furthermore, it also includes a second torsion spring, which is disposed on the shaft of the second rotating shaft, with one end abutting against the surface of the locking tongue and the other end connected to the bracket.

[0019] Furthermore, the telescopic stop includes:

[0020] A wire threaded insert, wherein the wire threaded insert is connected to a locking tongue;

[0021] An adjusting screw, wherein the adjusting screw is threadedly engaged with a wire threaded sleeve;

[0022] A locking nut is fitted onto the adjusting screw and abuts against the end of the wire thread sleeve, used to lock and fix the adjusting screw after it is adjusted to a preset position.

[0023] Furthermore, the first pressing part includes:

[0024] Unlock button;

[0025] The first sealing ring is disposed on the outer periphery of the unlock button.

[0026] Furthermore, the second pressing part includes:

[0027] Lock button;

[0028] The second sealing ring is disposed inside the through hole of the bracket and contacts the outer periphery of the locking button.

[0029] Furthermore, the unlock button is fixed to the connecting beam of the U-shaped push arm by rivets.

[0030] Compared with the prior art, the beneficial effects of this utility model are:

[0031] This invention achieves locking and unlocking of a push-button lock by incorporating a rotating part, a locking tongue, and a first pressing part and a second pressing part inside a bracket. Specifically, the rotating part is rotatably located inside the bracket; the first pressing part is located outside the bracket and is linked to the rotating part; the locking tongue is rotatably located inside the bracket and engages with the rotating part; the second pressing part passes through a through hole in the bracket and is linked to the locking tongue. By pressing the first pressing part, the rotating part rotates along its own axis, causing the locking tongue to gradually disengage from the limiting position of the rotating part. Once the locking tongue is disengaged, the second pressing part rotates outward under the action of a restoring force, causing the stop adjustment part to separate from the external locked component, thus completing the unlocking process. The overall structure achieves unlocking through a single transmission chain, eliminating the need for additional connecting rods and gears, reducing the frequent jamming problems caused by the multi-component coordination of traditional methods. Furthermore, the inclusion of a stop adjustment part whose length can be adjusted according to actual conditions ensures controllable load-bearing capacity, improving the reliability and safety of the push-button lock. Attached Figure Description

[0032] Figure 1 This is a front view of the locked state of this utility model;

[0033] Figure 2 This is a front view of the unlocked state of this utility model;

[0034] Figure 3 This is a top view of the locked state of this utility model;

[0035] Figure 4 This is a left view of the locked state of this utility model;

[0036] Figure 5 This is a structural diagram of the locked state portion of this utility model;

[0037] Figure 6 This is a structural diagram of the unlocked state portion of this utility model.

[0038] In the diagram: 1. First pressing part; 10. Unlock button; 11. First sealing ring; 2. Rotating part; 20. U-shaped push arm; 21. First torsion spring; 3. First rotating shaft; 4. Locking tongue; 5. Second pressing part; 50. Locking button; 51. Second sealing ring; 6. Telescopic stop part; 60. Adjusting screw; 61. Locking nut; 62. Wire thread sleeve; 7. Second rotating shaft; 8. Bracket; 9. Second torsion spring. Detailed Implementation

[0039] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments. However, the following embodiments are only preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this utility model. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0040] like Figures 1-6 In this embodiment, it includes: a bracket 8, a rotating part 2, a first pressing part 1, a second pressing part 5, a locking tongue 4, and a telescopic stop part 6;

[0041] The support 8 has through holes on its surface, and a first rotating shaft 3 and a second rotating shaft 7 are respectively installed inside the support 8.

[0042] The rotating part 2 is rotatably disposed inside the bracket 8, and the rotating part 2 is connected to the bracket 8 via the first rotating shaft 3;

[0043] The first pressing part 1 is located on the outside of the bracket 8 and is linked to the rotating part 2;

[0044] It should be noted that the rotating part 2 includes:

[0045] U-shaped push arm 20, the two side support arms of U-shaped push arm 20 are connected to the shaft of the first rotating shaft 3, and the connecting beam of U-shaped push arm 20 is connected to the first pressing part 1;

[0046] The first torsion spring 21 is mounted on the shaft of the first rotating shaft 3, with one end abutting against the connecting beam of the U-shaped push arm 20 and the other end connected to the end of the second rotating shaft 7.

[0047] Specifically, the U-shaped arm 20 is rotated with the first rotating shaft 3 through the two side support arms, so that the U-shaped arm 20 can rotate around the first rotating shaft 3 as a whole. When the first pressing part 1 is pressed by an external force, it will drive the connecting beam of the U-shaped arm 20 to rotate around the first rotating shaft 3. At this time, the first torsion spring 21 will undergo torsional deformation due to the rotation of the U-shaped arm 20 and store elastic potential energy. When the external force is removed, the first torsion spring 21 releases elastic potential energy and pushes against the connecting beam of the U-shaped arm 20, thereby driving the U-shaped arm 20 and the connected first pressing part 1 to return to the initial position.

[0048] The second pressing part 5 is inserted into the through hole of the bracket 8;

[0049] The locking tongue 4 is rotatably disposed inside the bracket 8 and is linked to the second pressing part 5. The locking tongue 4 is engaged with the rotating part 2.

[0050] The bracket 8 is connected to the locking tongue 4 via the second pivot 7;

[0051] The second torsion spring 9 is mounted on the shaft of the second rotating shaft 7, with one end abutting against the surface of the locking tongue 4 and the other end connected to the bracket 8.

[0052] It should be noted that a limiting groove is provided at the contact point between the locking tongue 4 and the connecting beam of the U-shaped push arm 20, so that the connecting beam and the locking tongue 4 cooperate with each other.

[0053] Specifically, in such Figure 4 In the locked state: the latch 4 has a recessed limiting groove on the side facing the connecting beam of the U-shaped push arm 20. The contour of the limiting groove matches the edge shape of the connecting beam of the U-shaped push arm 20, and the second torsion spring 9 is in a pre-torsion state; in the locked state, the connecting beam of the U-shaped push arm 20 is inserted into the limiting groove of the latch 4, and the mechanical limiting is formed by the fit between the groove wall and the edge of the connecting beam, which restricts the latch 4 from rotating around the second rotating shaft 7;

[0054] When the first pressing part 1 is pressed, the connecting beam of the U-shaped pressing arm 20 disengages from the limiting groove of the locking tongue 4, the torsional constraint of the second torsion spring 9 is released, and the stored elastic potential energy is released instantly. The elastic force drives the locking tongue 4 to rotate around the second rotating shaft 7 in the unlocking direction, while simultaneously causing the second pressing part 5 to flip outward, thus completing the unlocking action.

[0055] In such Figure 5 In the unlocked state: When the second pressing part 5 is pressed, the external force needs to overcome the elastic force of the second torsion spring 9. After being subjected to force, it drives the lock tongue 4 to rotate in the opposite direction around the second rotating shaft 7. At this time, the limiting groove on the lock tongue 4 rotates synchronously with the lock tongue and gradually approaches the connecting beam of the U-shaped pressing arm 20. As the lock tongue 4 continues to rotate, the opening side of the limiting groove contacts the edge of the connecting beam, and through the guiding effect of the groove wall, the connecting beam gradually slides into the limiting groove. The second torsion spring 9 is once again constrained in the pre-torsion state, storing elastic potential energy for the next unlocking.

[0056] Meanwhile, during this process, the rotation of the latch 4 will generate a lateral thrust on the connecting beam of the U-shaped push arm 20, forcing the U-shaped push arm 20 to rotate slightly around the first rotating shaft 3, thereby causing the first torsion spring 21 sleeved on the first rotating shaft 3 to undergo torsional deformation and store elastic potential energy; when the limiting groove completely covers the connecting beam, the rebound force of the first torsion spring 21 drives the U-shaped push arm 20 to reset, so that the connecting beam and the wall of the limiting groove are tightly fitted, completing the locking of the latch 4 and the connecting beam of the U-shaped push arm 20, and realizing the locking of the push lock;

[0057] Telescopic stop 6 is connected to the locking tongue 4, and the end of the telescopic stop 6 abuts against the external locked component.

[0058] It should be noted that the telescopic stop 6 includes:

[0059] Wire thread insert 62 is connected to locking tongue 4;

[0060] Adjusting screw 60, which is threadedly engaged with wire thread insert 62;

[0061] Locking nut 61 is sleeved on adjusting screw 60 and abuts against the end of wire thread sleeve 62, and is used to lock and fix after adjusting screw 60 is adjusted to a preset position;

[0062] Specifically, when the stop length needs to be adjusted, loosen the locking nut 61 and rotate the adjusting screw 60 to change the depth of its screwing into the wire thread sleeve 62. This adjusts the overall effective working length of the telescopic stop part 6, ensuring precise contact with the external locked component. After adjustment, tighten the locking nut 61 to make it fit tightly against the end of the wire thread sleeve 62. Use the friction between the threads to lock the position of the adjusting screw 60. This precise matching limiting method allows the load to be evenly transmitted to the latch and bracket through the stop adjustment part when the push lock is subjected to external force, ensuring stable and controllable load-bearing capacity. This effectively reduces the risk of component deformation or breakage due to uneven force, thereby improving the reliability and safety of the push lock.

[0063] During the locking process, when the locking tongue 4 rotates towards the connecting beam of the U-shaped push arm 20 and completes the locking, the telescopic stop part 6 moves synchronously with the locking tongue towards the locked component. The end of the adjusting screw 60 gradually approaches and finally abuts against the locked component, forming a rigid limit through the preset stop length to ensure that the locked component cannot move.

[0064] During the unlocking process, when the locking tongue 4 disengages from the limit of the connecting beam and rotates in the opposite direction, the telescopic stop part 6 moves away from the locked part synchronously with the locking tongue, the end of the adjusting screw 60 separates from the locked part, the limit constraint is released, and the locked part can move freely.

[0065] In this embodiment, the first pressing part 1 includes:

[0066] Unlock button 10;

[0067] The first sealing ring 11 is disposed on the outer periphery of the unlock button 10;

[0068] It should be noted that the first pressing part 1 is provided at the external mounting location, and the external mounting location is provided with a mounting hole that mates with the first pressing part 1, and the first sealing ring 11 is provided in the mounting hole;

[0069] Specifically, when the unlock button 10 is pressed and moves axially or rotates slightly, the first sealing ring 11 always maintains a tight fit with both through its own elastic deformation. This can compensate for the movement gap of the unlock button 10 and prevent external dust, liquids and other impurities from entering the lock body through the gap between the mounting hole and the unlock button 10, thus achieving first-level sealing protection and preventing internal components from jamming or corroding due to impurities. At the same time, it maintains the sealing of the external mounting surface.

[0070] In this embodiment, the second pressing part 5 includes:

[0071] Lock button 50;

[0072] The second sealing ring 51 is disposed in the through hole of the bracket 8 and is in contact with the outer periphery of the locking button 50.

[0073] Specifically, when the locking button 50 is pressed and rotates around its own axis, the second sealing ring 51 maintains dynamic sealing contact with the outer periphery of the locking button 50 through the elastic deformation of the lip. This not only adapts to the rotation of the locking button 50, but also prevents external impurities from entering the lock body through the gap between the through hole of the bracket 8 and the locking button 50. Together with the first sealing ring 11, it forms a double sealing protection system, further improving the sealing performance of the lock body, reducing problems such as jamming and wear of internal components caused by the intrusion of impurities, and ensuring the stable operation of the push-button lock in complex environments such as dust and humidity.

[0074] In summary, the dual sealing design, which combines the first sealing ring 11 and the second sealing ring 51, constitutes a reliable sealing defense.

[0075] In this embodiment, the unlock button 10 is fixed to the connecting beam of the U-shaped push arm 20 by rivets.

[0076] Working principle:

[0077] (1) Locked state

[0078] When the unlock button 10 is pressed, the unlock button 10 drives the connecting beam of the U-shaped push arm 20 to rotate around the first rotating shaft 3 through the rivet; during this process, the connecting beam of the U-shaped push arm 20 gradually disengages from the limiting groove of the lock tongue 4, releasing the mechanical constraint on the lock tongue 4.

[0079] At the same time, the rotation of the U-shaped arm 20 causes the first torsion spring 21 sleeved on the first rotating shaft 3 to undergo torsional deformation and store elastic potential energy.

[0080] As the connecting beam completely disengages from the limiting groove, the pre-torsional constraint of the second torsion spring 9 is released, instantly releasing elastic potential energy and driving the locking tongue 4 to rotate around the second rotating shaft 7 in the unlocking direction; the locking tongue 4 simultaneously drives the connected locking button 50 to flip outwards towards the bracket 8, and the telescopic stop part 6 moves away from the external locked part along with the locking tongue 4, the adjusting screw 60 separates from the locked part, the locked part can move freely, and the device enters the unlocking state.

[0081] (2) Unlocked state

[0082] Scenario 1:

[0083] Pressing the locking button 50 causes the limiting groove on the locking tongue 4 to rotate synchronously, gradually approaching and wrapping around the connecting beam of the U-shaped push arm 20 through the groove wall. During this process, the locking tongue 4 generates a lateral thrust on the connecting beam, forcing the U-shaped push arm 20 to rotate slightly around the first pivot 3, and the first torsion spring 21 torsionally deforms and stores energy. At the same time, the second torsion spring 9 re-enters the pre-torsion state due to the rotation of the locking tongue 4.

[0084] When the limiting groove is fully engaged with the connecting beam, the first torsion spring 21 releases its rebound force, driving the U-shaped push arm 20 to reset, so that the connecting beam is tightly engaged with the wall of the limiting groove; the telescopic stop part 6 presses against the locked part synchronously with the locking tongue 4, the second torsion spring 9 maintains its pre-torsion stored energy, and the device returns to the locked state.

[0085] Scenario 2:

[0086] First, keep the unlock button 10 pressed, so that the U-shaped arm 20 keeps rotating around the first pivot 3, the connecting beam moves away from the limiting groove of the latch 4, and the first torsion spring 21 maintains torsional deformation and stores energy; at this time, the latch 4 keeps the unlocked position under the action of the second torsion spring 9, and the telescopic stop part 6 separates from the locked part.

[0087] While keeping the unlock button 10 pressed, press the lock button 50. The external force causes the bolt 4 to rotate in the opposite direction around the second pivot 7, and the second torsion spring 9 is gradually twisted to store energy. The limiting groove of the bolt 4 rotates with it to a position close to the connecting beam of the U-shaped push arm 20.

[0088] Then, when the unlock button 10 is released, the first torsion spring 21 releases its rebound force, driving the U-shaped push arm 20 to reset. Under the action of the elastic force, the connecting beam quickly slides into the limiting groove of the lock tongue 4 and fits tightly against the groove wall to form a limit.

[0089] Finally, the locking tongue 4 is locked by the connecting beam, the telescopic stop part 6 presses against the locked part, the second torsion spring 9 remains in a pre-torsion state, and the device completes the locking.

[0090] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A trigger-type double-seal push-button cover lock, characterized in that, include: A bracket (8) having through holes on its surface; Rotating part (2), which is rotatably disposed inside the bracket (8); The first pressing part (1) is disposed on the outside of the bracket (8) and is linked to the rotating part (2); The second pressing part (5) is inserted into the through hole of the bracket (8); The locking tongue (4) is rotatably disposed inside the bracket (8) and is linked to the second pressing part (5). The locking tongue (4) is engaged with the rotating part (2). Telescopic stop (6), the telescopic stop (6) is connected to the locking tongue (4), and the end of the telescopic stop (6) abuts against the external locked component; When in operation, pressing the first pressing part (1) causes the rotating part (2) to rotate along its own axis, causing the locking tongue (4) to gradually disengage from the limit of the rotating part (2). After the locking tongue (4) disengages from the limit, under the action of the restoring force, it drives the second pressing part (5) to rotate around its own axis to the outside of the bracket (8), causing the telescopic stop part (6) to separate from the external locked component, thus completing the unlocking.

2. The trigger-type double-seal push-button cover lock according to claim 1, characterized in that, The bracket (8) is connected to the rotating part (2) via the first rotating shaft (3); the bracket (8) is connected to the locking tongue (4) via the second rotating shaft (7).

3. The trigger-type double-seal push-button cover lock according to claim 2, characterized in that, The rotating part (2) includes: The U-shaped push arm (20) has two side support arms connected to the shaft of the first rotating shaft (3), and the connecting beam of the U-shaped push arm (20) is connected to the first pressing part (1). The first torsion spring (21) is mounted on the shaft of the first rotating shaft (3), with one end abutting against the connecting beam of the U-shaped arm (20) and the other end connected to the end of the second rotating shaft (7).

4. The trigger-type double-seal push-button cover lock according to claim 3, characterized in that, It also includes a second torsion spring (9), which is mounted on the shaft of the second rotating shaft (7), with one end abutting against the surface of the locking tongue (4) and the other end connected to the bracket (8).

5. The trigger-type double-seal push-button cover lock according to claim 4, characterized in that, The telescopic stop (6) includes: A wire thread insert (62) is connected to a locking tongue (4); Adjusting screw (60), the adjusting screw (60) and wire thread sleeve (62) are engaged by threads; A locking nut (61) is fitted onto an adjusting screw (60) and abuts against the end of a wire thread sleeve (62) for locking and fixing after the adjusting screw (60) is adjusted to a preset position.

6. The trigger-type double-seal push-button cover lock according to claim 5, characterized in that, The first pressing part (1) includes: Unlock button (10); The first sealing ring (11) is disposed on the outer periphery of the unlock button (10).

7. The trigger-type double-seal push-button cover lock according to claim 6, characterized in that, The second pressing part (5) includes: Lock button (50); The second sealing ring (51) is disposed in the through hole of the bracket (8) and contacts the outer periphery of the locking button (50).

8. The trigger-type double-seal push-button cover lock according to claim 6, characterized in that, The unlock button (10) is fixed to the connecting beam of the U-shaped push arm (20) by rivets.

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