Self-locking, noise-proof storage box lock

Abstract

This utility model discloses a self-opening anti-noise storage box lock, including a lock body assembly. The lock body assembly includes a base, a latch pivotally connected to the base, and a lock buckle pivotally connected to the latch. A movable bolt and a return spring for driving the bolt to reset are disposed within the base. The bolt engages with the latch for locking. An elastic member is disposed between the base and the latch, driving the latch to rotate away from the base in a disengaging direction; alternatively, an elastic member is disposed between the lock buckle and the latch, driving the lock buckle and the latch to move in an opening direction. This utility model can suppress shaking noise in the locked state and automatically open the latch when unlocking.

Description

Technical Field

[0001] This utility model relates to a self-springing anti-noise storage box lock. Background Technology

[0002] Two-wheeled electric vehicles, motorcycles, and bicycles have become important means of transportation for people's daily commutes. In order to meet users' storage needs during riding, these vehicles are usually equipped with on-board storage boxes at the rear.

[0003] Existing vehicle storage boxes typically rely on a lock between the lid and the box body to achieve closure and locking. A conventional lock structure usually includes a latch seat mounted on the lid and a lock body assembly mounted on the box body. The latch seat usually includes a fixed bracket and a connecting shaft mounted on the fixed bracket. The lock body assembly usually includes a base, a latch pivotally connected to the base, and a lock catch pivotally connected to the latch. The base contains a movable bolt, a return spring for driving the bolt to reset, and a lock cylinder that can cooperate with a key.

[0004] When the user operates the latch to engage the lock on the connecting shaft and presses it down, the latch engages with the lock body base. The guide structure between the latch and the bolt pushes the bolt back in the unlocking direction, simultaneously closing the latch and the lock. The bolt, driven by the return spring, automatically extends and locks the latch, thus locking the lid and the box body and preventing it from opening on its own due to vehicle bumps.

[0005] When it is necessary to open the box lid, the user can manually press and push the latch in the unlocking direction to release the latch from the lock, and then manually push the latch outward (i.e., release the latch) to unlock the box.

[0006] When theft prevention is required, the lock cylinder can be driven to rotate by the key, which in turn moves the limit block connected to the lock cylinder to the retraction path of the bolt, thereby restricting the retraction of the bolt and preventing the latch from being pushed outward, thus achieving the anti-theft effect.

[0007] Currently, in conventional locks, the latch is usually made of bent metal sheet. Due to the influence of manufacturing precision, there will inevitably be a certain gap between it and the bolt. When the vehicle is traveling on a bumpy road, the latch will shake and frequently collide with the bolt, generating noise. In addition, the user needs to manually push the latch outward every time they open the door, which is a rather cumbersome operation. Utility Model Content

[0008] In order to overcome the shortcomings of the prior art, this utility model provides a self-springing anti-noise storage box lock, which can suppress shaking noise when locked and automatically open the drive latch when unlocking.

[0009] This utility model discloses a self-locking, noise-proof storage box lock, including a lock body assembly. The lock body assembly includes a base, a latch pivotally connected to the base, and a lock buckle pivotally connected to the latch. A movable bolt and a return spring for driving the bolt to reset are provided inside the base. The bolt engages with the latch for locking. An elastic member is provided between the base and the latch, and the elastic member is used to drive the latch to rotate in a release direction away from the base; or, an elastic member is provided between the lock buckle and the latch, and the elastic member is used to drive the lock buckle and the latch to move in an opening direction.

[0010] In the above scheme, the elastic component can eliminate the gap between the latch and the bolt by providing a certain preload when the lock is locked, thereby suppressing the collision and abnormal noise caused by external vibration. When unlocking, that is, when the bolt is manually driven to retract, the bolt locks the latch, and the elastic potential energy of the elastic component drives the latch to automatically deflect and open, making unlocking more convenient and effortless.

[0011] Furthermore, an elastic member is provided between the latch and the buckle, and the elastic member is located at the pivot connection between the latch and the buckle.

[0012] In the above scheme, placing the elastic member at the pivot connection of the latch and buckle makes the structure more compact and improves the force application effect of the elastic member.

[0013] Furthermore, the latch and buckle are pivotally connected via a pivot, and the elastic member is a torsion spring sleeved and mounted on the pivot.

[0014] In the above scheme, the torque is provided by a torsion spring sleeved on the rotating shaft, which makes the structure more compact and ensures that the force is evenly distributed at both ends of the torsion spring, thus improving reliability.

[0015] Furthermore, the latch includes a pawl and two connecting arms. One end of the two connecting arms is connected to the pawl, and the other end of the two connecting arms is pivotally connected to both sides of one end of the latch. The other end of the latch is pivotally connected to the base, and at least one of the connecting arms and the latch is provided with the torsion spring at the pivot connection point.

[0016] Based on the above solution, the connection structure between the lock and the latch is simple, making the force between the lock and the latch more even. In addition, when locked, the lock and the latch can be in a flush position, which is more compact and aesthetically pleasing.

[0017] Furthermore, at least one of the connecting arms has a first groove on its inner side, and the corresponding side of the buckle has a second groove. The torsion spring and the pivot are disposed in the first and second grooves, and the two force-bearing ends of the torsion spring respectively abut against the inner walls of the first and second grooves.

[0018] In the above solution, the torsion spring and the pivot are set in the first and second grooves, which can hide them and prevent external mud or foreign objects from entering and causing jamming, thus making the lock more aesthetically pleasing.

[0019] Furthermore, the latch includes a sliding plate that slides with the base and a horizontal plate fixedly installed near one end of the sliding plate. One end of the sliding plate is provided with a pressing part, and one end of the latch is fixedly installed with a locking hook for engaging with the latch. The locking hook includes a mounting plate and two locking hooks connected to both sides of the mounting plate. The two locking hooks are hooked and engaged with both ends of the horizontal plate. Both the horizontal plate and the locking hook are made of metal.

[0020] In the above solution, the two hooks of the locking hook component hook with the two ends of the horizontal plate, which can improve the structural strength of the connection. The metal hooks and horizontal plate are not easy to bend or deform when subjected to force. In addition, it is convenient to process and manufacture the locking hook component and the horizontal plate separately. Compared with the existing technology where the buckle and locking hook component are integrally formed, it can improve the processing accuracy and the matching accuracy between the buckle and the locking tongue, which helps to reduce the gap and further reduce the shaking noise problem.

[0021] Furthermore, the other end of the sliding plate is provided with a limiting part, and the two sides of the sliding plate are symmetrically provided with supporting parts. There are two reset springs, which are respectively abutted between the supporting parts and the base on both sides of the sliding plate. The base is provided with a lock cylinder and a limiting block driven by the lock cylinder to rotate. The limiting block cooperates with the limiting part to limit the movement.

[0022] The above solution allows for more even force distribution between the sliding plate and the base, preventing jamming during sliding plate reset. The lock cylinder design works in conjunction with the key to achieve anti-theft protection. When the lock cylinder is in the locked position, the limit block is positioned on the sliding plate's return path, restricting the sliding plate's return and preventing it from being opened by outsiders. Attached Figure Description

[0023] Figure 1 This is a structural diagram of the present invention in the locked state according to an embodiment; Figure 2 This is a structural diagram of the unlocked state in an embodiment of this utility model; Figure 3 This is a side view of the unlocked state in an embodiment of this utility model; Figure 4 This is a cross-sectional view of the unlocked state in an embodiment of this utility model; Figure 5 This is a schematic diagram showing the connection between the buckle and the lock in an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the buckle in an embodiment of the present utility model; Figure 7This is a schematic diagram illustrating the cooperation between the lock tongue and the lock cylinder in an embodiment of this utility model. Detailed Implementation

[0024] like Figure 1-7 As shown, this utility model embodiment provides a self-locking anti-noise storage box lock, including a lock body assembly. The lock body assembly is used to be installed on the body of the storage box and to cooperate with a latch seat installed on the lid of the storage box for locking. The lock body assembly includes a base 1, a latch 2 pivotally connected to the base 1, and a latch 3 pivotally connected to the latch 2. A movable bolt 4 is provided in the base 1, and a return spring 5 is used to drive the bolt 4 to return to its original position. The bolt 4 cooperates with the latch 2 for locking. An elastic member 6 is provided between the latch 3 and the latch 2. The elastic member 6 is used to drive the latch 3 and the latch 2 to move in an opening direction. The elastic member 6 can be provided in the locked state. In the normal state, a certain pre-tightening force is provided to eliminate the gap between the latch 2 and the bolt 4, thereby suppressing the collision and abnormal noise caused by external vibration. When unlocking, that is, when the bolt 4 is manually driven to retract by pressing the pressing part 411, the bolt 4 releases the lock on the latch 2. Since the hook 31 of the latch 3 is still hanging on the connecting shaft of the latch seat, the elastic potential energy of the elastic member 6 can drive the latch 3 and use the hook 31 and the hanging point of the connecting shaft as the support fulcrum to drive the latch 2 to automatically deflect and spring open around the pivot connection point with the base 1 in a direction away from the base 1. At the same time, it will also drive the latch 2 to automatically deflect and spring open from the position where it is engaged with the base 1, making unlocking more convenient and effortless.

[0025] In other embodiments, the elastic member 6 can also be disposed between the base 1 and the buckle 2, so that after unlocking, it can directly drive the buckle 2 to automatically deflect and spring open from the fastening position of the base 1.

[0026] In this embodiment, the elastic member 6 is disposed at the pivot connection between the latch 3 and the buckle 2. Disposing of the elastic member 6 at the pivot connection between the latch 3 and the buckle 2 makes the structure more compact and improves the force application effect of the elastic member 6.

[0027] The latch 3 and the buckle 2 are pivotally connected by the first pivot 71. The elastic member 6 is a torsion spring sleeved on the first pivot 71. The torsion spring sleeved on the first pivot 71 provides torque, making the structure more compact and ensuring that the force is evenly distributed at both ends of the torsion spring, thus improving reliability.

[0028] The latch 3 includes a hook 31 and two connecting arms 32. One end of each connecting arm 32 is connected to the hook 31, and the other end of each connecting arm 32 is pivotally connected to one side of the buckle 2 via a first pivot 71. The other end of the buckle 2 is pivotally connected to the base 1 via a second pivot 72 passing through the base 1. A torsion spring is provided at the pivot connection between one of the connecting arms 32 and the buckle 2. Based on the aforementioned structure, the connection structure between the latch 3 and the buckle 2 is simplified, and the force between the latch 3 and the buckle 2 is more even. In addition, when locked, the latch 3 and the buckle 2 can be in a flush position, which is more compact and aesthetically pleasing.

[0029] One of the connecting arms 32 has a first groove 321 on its inner side, and the buckle 2 has a second groove 21 on its corresponding side. The torsion spring and the first rotating shaft 71 are disposed in the first groove 321 and the second groove 21. The two force-bearing ends of the torsion spring abut against the inner walls of the first groove 321 and the second groove 21, respectively. By disposing of the torsion spring and the first rotating shaft 71 in the first groove 321 and the second groove 21, they can be hidden to prevent external mud or foreign objects from entering and causing jamming, thus making the lock more aesthetically pleasing.

[0030] In other embodiments, to further improve the pop-out effect or avoid jamming, the torsion springs can be provided at the pivot connection between the two sets of connecting arms 32 and the buckle 2, and the first groove 321 and the second groove 21 are also provided accordingly.

[0031] In this embodiment, the latch 4 includes a sliding plate 41 that slides with the base 1 and a horizontal plate 42 fixedly installed near one end of the sliding plate 41. The sliding plate 41 and the horizontal plate 42 are fixedly connected by screws. One end of the sliding plate 41 is provided with a pressing part 411, which extends to the outside of the base 1 and can be manually pressed to drive the latch 4 to retract toward the inside of the base 1. One end of the latch 2 is fixedly installed with a locking hook 22 for cooperating with the latch 4. The locking hook 22 includes a mounting plate 221 and two locking hooks 222 connected to both sides of the mounting plate 221. The locking hook 22 is made of a piece of sheet material and is bent and processed. The two locking hooks 222 are hooked and cooperated with the two ends of the horizontal plate 42. Both the horizontal plate 42 and the locking hook 22 are made of metal.

[0032] The two hooks 222 of the locking hook 22 engage with the two ends of the horizontal plate 42, which improves the structural strength of the connection. The metal hooks 222 and the horizontal plate 42 are not easily bent or deformed under stress. In addition, it is convenient to manufacture the locking hook 22 and the horizontal plate 42 separately. Compared with the existing technology where the buckle 2 and the locking hook 22 are integrally formed, it can improve the processing accuracy and the fitting accuracy between the buckle 2 and the latch 4, which helps to reduce the gap and further reduce the shaking noise problem. When the buckle 2 is engaged, the guide arc surface on the locking hook 222 and the component force of the horizontal plate 42 under stress drive the latch 4 to move in the retracting direction.

[0033] The sliding plate 41 has a limiting part 412 at the other end, and support parts 413 are symmetrically provided on both sides of the sliding plate 41. There are two return springs 5, which are respectively abutted between the support parts 413 and the base 1 on both sides of the sliding plate 41. The base 1 is provided with a lock cylinder 8 and a limiting block 9 driven by the lock cylinder 8. The limiting block 9 cooperates with the limiting part 412 to limit the movement, so that the force between the sliding plate 41 and the base 1 is more even, and the sliding plate 41 is prevented from jamming when it is reset. The lock cylinder 8 can be used with the key to achieve the anti-theft effect. When the lock cylinder 8 is in the locked position, the limiting block 9 is located on the return path of the sliding plate 41, which can limit the return of the sliding plate 41, thereby preventing it from being opened by outsiders.

[0034] The above embodiments are merely one preferred embodiment of the present utility model. Ordinary changes and substitutions made by those skilled in the art within the scope of the present utility model's technical solution are all included within the protection scope of the present utility model.

Claims

1. A self-locking, noise-proof storage box lock, comprising a lock body assembly, the lock body assembly including a base, a latch pivotally connected to the base, and a locking buckle pivotally connected to the latch, wherein a movable bolt and a return spring for driving the bolt to reset are disposed within the base, the bolt engaging with the latch for locking, characterized in that: An elastic member is provided between the base and the latch, the elastic member being used to drive the latch to rotate in a disengagement direction away from the base; or, an elastic member is provided between the latch and the latch, the elastic member being used to drive the latch and the latch to move in an opening direction.

2. The self-ejecting anti-rattle storage box lock set of claim 1, wherein: An elastic member is provided between the latch and the buckle, and the elastic member is located at the pivot connection between the latch and the buckle.

3. The self-ejecting anti-rattle storage box lock set of claim 2, wherein: The latch and buckle are pivotally connected by a pivot, and the elastic member is a torsion spring sleeved on the pivot.

4. The self-ejecting anti-rattle storage box lock set of claim 3, wherein: The latch includes a pawl and two connecting arms. One end of each connecting arm is connected to the pawl, and the other end of each connecting arm is pivotally connected to both sides of one end of the latch. The other end of the latch is pivotally connected to the base. At least one of the connecting arms and the latch is provided with the torsion spring at the pivot connection point.

5. The self-ejecting anti-rattle storage box lock set of claim 4, wherein: At least one of the connecting arms has a first groove on its inner side, and the corresponding side of the buckle has a second groove. The torsion spring and the pivot are disposed in the first and second grooves, and the two force-bearing ends of the torsion spring respectively abut against the inner walls of the first and second grooves.

6. The self-ejecting anti-rattle storage box lock set of claim 1, wherein: The latch includes a sliding plate that slides with the base and a horizontal plate fixedly installed near one end of the sliding plate. One end of the sliding plate is provided with a pressing part. One end of the latch is fixedly installed with a locking hook for engaging with the latch. The locking hook includes a mounting plate and two locking hooks connected to both sides of the mounting plate. The two locking hooks are hooked and engaged with both ends of the horizontal plate. Both the horizontal plate and the locking hook are made of metal.

7. The self-ejecting anti-rattle storage box lock set of claim 6, wherein: The sliding plate has a limiting part at the other end, and supporting parts are symmetrically provided on both sides of the sliding plate. There are two return springs, which are respectively abutted between the supporting parts and the base on both sides of the sliding plate. The base is provided with a lock cylinder and a limiting block driven by the lock cylinder to rotate. The limiting block cooperates with the limiting part to limit the movement.

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