TSA password padlock with unlocking prompt function

Abstract

The utility model relates to the field of locks, in particular to a TSA password padlock with an unlocking prompt function. When the button is pressed downwards for unlocking, the abutting part can extrude the indicating part block to enable the indicating part to move downwards to be separated from the window and move to a maintaining position from a mechanical unlocking recording position, and the mechanical lock cylinder assembly is provided with a wedge-shaped unlocking block which can move upwards to extrude the pair of locking arms to be opened for unlocking. The wedge-shaped unlocking block is further provided with an extrusion portion extending towards the lower portion of the indicating block, and when the wedge-shaped unlocking block moves upwards to unlock, the extrusion portion can extrude the indicating block to move from the holding position to the mechanical unlocking recording position. According to the mechanical unlocking device, when the button is pressed downwards for unlocking, the abutting part can extrude the indicating part block to enable the indicating part to move downwards to be separated from the window and move to the maintaining position from the mechanical unlocking recording position, and after the password wheel assembly is unlocked again after the lock cylinder is unlocked, the button can be pressed downwards to achieve resetting.

Description

Technical Field

[0001] This utility model relates to the field of locks, specifically a TSA combination padlock with an unlocking prompt function. Background Technology

[0002] To let bag owners know whether their bags have been opened with a special key using a TSA lock, an indicator block is usually installed inside the lock. The indicator block will change position (switch positions) when the TSA lock is opened, and the bag owner can then know that the bag lock has been opened with a special key (TSA key).

[0003] Chinese Patent Publication No. CN215520436U discloses a novel padlock, comprising a lock cord (flexible lock beam) and a housing (lock body). The top surface of the housing has a first mounting hole, a second mounting hole, and a movable hole located between the first and second mounting holes. The fixed end of the lock cord is inserted into the first mounting hole and fixed, while the movable end of the lock cord is inserted into the second mounting hole (lock hole). The housing contains an unlocking mechanism, a locking control mechanism, and a button extending from the movable hole and capable of reciprocating up and down. The locking control mechanism has a lock hole for locking the movable end of the lock cord. The locking control mechanism abuts against the button and is movably mounted within the housing. The unlocking mechanism restricts the movement of the locking control mechanism. The unlocking mechanism includes a combination wheel assembly and the combination wheel assembly.

[0004] In existing technology, the indicator block needs to be manually reset before the bag can be opened again with a special key. If the reset is forgotten, it is impossible to know whether the bag lock has been opened again with the TSA key. Utility Model Content

[0005] The purpose of this utility model is to provide a TSA combination padlock with an unlocking prompt function, which can be reset by pressing down the button after the combination wheel assembly is unlocked again after the lock cylinder is unlocked.

[0006] To achieve the above objectives, this utility model provides a TSA combination padlock with an unlocking prompt function, including a button, a lock body, a flexible lock beam, a mechanical lock cylinder assembly, and a combination wheel assembly. One end of the flexible lock beam is fixedly connected to the lock body, and the other end has a plug that can be inserted into the lock hole of the lock body. The plug has an annular recess. When the combination wheel assembly is unlocked, the button can be pressed down to unlock; when the combination wheel assembly is locked, the button is restricted from being pressed down. The lock body has a pair of locking arms for engaging the annular recess, a first compression spring for keeping the locking arms engaged with the annular recess, and an indicator block located between the mechanical lock cylinder assembly and the combination wheel assembly and below the locking arms. The indicator block has an indicator part. The lock body has a window corresponding to the indicator section. The button has a stop extending downward through a pair of locking arms. The button has an opening section in the middle for pressing the pair of locking arms to open and unlock. The stop abuts against the upper end of the axle of the combination wheel assembly. When the button is pressed down to unlock, the stop can press the indicator block to move the indicator down away from the window and move from the mechanical unlocking record position to the holding position. The mechanical lock cylinder has a wedge-shaped unlocking block that can move upward to press the pair of locking arms to open and unlock. The wedge unlocking block also has a pressing section extending downward toward the indicator block. When the wedge unlocking block moves upward to unlock, the pressing section can press the indicator block from the holding position to the mechanical unlocking record position.

[0007] In one embodiment of the present invention, the opening portion is provided with a compression guide surface, and the locking arm is provided with a mating guide surface that cooperates with the compression guide surface.

[0008] In one embodiment of this utility model, the lock cylinder of the mechanical lock cylinder assembly is fixedly provided with a sleeve with a spiral groove. The wedge-shaped unlocking block is provided with a connecting post that inserts into the sleeve, and the connecting post is provided with a driving pin that inserts into the spiral groove. When the lock cylinder rotates, the driving pin cooperates with the spiral groove to drive the wedge-shaped unlocking block to move upward. The wedge-shaped unlocking block is slidably connected to the lock body, and the rotation of the wedge-shaped unlocking block is restricted.

[0009] In one embodiment of this utility model, the number of the indicator parts is a pair, the indicator block has a through hole for accommodating the indicator part, a second compression spring is provided between the pair of indicator parts, the lock body has a retaining recess corresponding to the indicator part in the retaining position, the indicator part is spherical, in the retaining position the indicator part is partially accommodated in the retaining recess, and in the mechanical unlocking record position the indicator part is partially accommodated in the window.

[0010] In one embodiment of the present invention, the first compression spring is located between the right ends of the pair of locking arms, and the right end of the locking arm is provided with a spring fixing part into which the first compression spring is inserted.

[0011] In one embodiment of the present invention, the locking arm has a semi-circular recess in the middle for rotatably connecting with the lock body, and the lock body has a semi-circular protrusion that is accommodated in the semi-circular recess.

[0012] In one embodiment of this utility model, the button is provided with an anti-fall-off protrusion that can abut against the inner wall of the lock body.

[0013] In one embodiment of this utility model, the retaining recess is a hemispherical recess.

[0014] In one embodiment of the present invention, the indicator block abuts against the pressing part when it is in the holding position, and abuts against the pressing part when it is in the mechanical unlocking recording position.

[0015] In one embodiment of this utility model, the tubular portion is slidably connected to an ejector rod extending toward the lock hole. The ejector rod is connected to a third compression spring for driving the ejector rod to press the plug out of the lock hole. The lower end of the tubular portion is connected to a plug for supporting the third compression spring. The plug has a pair of locking arms. The lower part of the tubular portion has a locking groove for engaging with the locking arms. Limiting protrusions are provided on both sides of the lower end of the ejector rod. The tubular portion has a groove for accommodating the limiting protrusions. A limiting groove extends downward from the upper part of the tubular portion to the lower end face of the tubular portion. The position of the snap-fit ​​arm corresponds to the position of the snap-fit ​​groove, and the snap-fit ​​arm is accommodated in the snap-fit ​​groove. The plug has a pin hole corresponding to the driving pin, and the tubular portion has a through hole communicating with the pin hole. The lower inner wall of the sleeve has a connecting protrusion, and the lock cylinder has a mating recess that mates with the connecting protrusion. The upper end of the sleeve abuts against the support part of the lock body, and the lower end of the sleeve abuts against the lock cylinder.

[0016] In this invention, when the button is pressed down to unlock, the abutment part can squeeze the indicator block, causing the indicator part to move down and away from the window from the mechanical unlocking record position to the holding position. After the combination wheel assembly is unlocked again after the lock cylinder is unlocked, pressing down the button can achieve a reset.

[0017] Furthermore, this application employs a single locking tongue structure that differs from existing technologies, ensuring that the locking arm always engages with the annular recess when struck. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the TSA combination padlock with unlocking prompt function according to the first embodiment of this utility model.

[0019] Figure 2 for Figure 1 An exploded view of a TSA combination padlock with unlocking prompts.

[0020] Figure 3 for Figure 2 A schematic diagram of the locking arm.

[0021] Figure 4 for Figure 2 A schematic diagram of the button's structure.

[0022] Figure 5 for Figure 2 A schematic diagram of the structure of the indicator block and indicator part.

[0023] Figure 6 for Figure 2 Exploded view of the lock cylinder assembly.

[0024] Figure 7 for Figure 1 A cross-sectional view of a TSA combination padlock with unlocking prompt function.

[0025] Figure 8 for Figure 1 A cross-sectional view of a TSA combination padlock with unlocking prompt function from another direction. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-8This utility model discloses a TSA combination padlock with unlocking prompt function according to a first embodiment. It includes a button 1, a lock body 2, a flexible lock beam 3, a mechanical lock cylinder assembly 4, and a combination wheel assembly 5. One end of the flexible lock beam 3 is fixedly connected to the lock body 2, and the other end has a plug 31 that can be inserted into the lock hole of the lock body 2. The plug 31 has an annular recess 310. When the combination wheel assembly 5 is unlocked, the button 1 can be pressed down to unlock; when the combination wheel assembly 5 is locked, the button 1 is restricted from being pressed down. The lock body 2 has a pair of locking arms 6 for engaging the annular recess 310, a first compression spring 6t for maintaining the locking arms 6 engaging the annular recess 310, and an indicator block 7 located between the mechanical lock cylinder assembly and the combination wheel assembly 5 and below the locking arms 6. The indicator block 7 has an indicator part 71. Body 2 has a window 21 corresponding to the indicator 71. Button 1 has a downward-extending abutment 12 that passes through the pair of locking arms 6. Button 1 has an opening part 13 in the middle for pressing the pair of locking arms 6 to open and unlock. The abutment 12 abuts against the upper end of the wheel axle 51 of the combination wheel assembly 5. When button 1 is pressed down to unlock, the abutment 12 can press the indicator 71 block, causing the indicator 71 to move down and away from the window 21 from the mechanical unlocking recording position to the holding position. The mechanical lock cylinder assembly 4 has a wedge-shaped unlocking block 41 that can move upward to press the pair of locking arms 6 to open and unlock. The wedge unlocking block 41 also has a pressing part 411 extending downward toward the indicator block 7. When the wedge unlocking block 41 moves upward to unlock, the pressing part 411 can press the indicator block 7 from the holding position to the mechanical unlocking recording position. The combination wheel assembly 5 uses the same combination wheel mechanism as CN114233117A, which will not be described in detail here.

[0028] The opening part 13 is provided with a compression guide surface 130, and the locking arm 6 is provided with a mating guide surface 60 that cooperates with the compression guide surface 130.

[0029] The mechanical lock cylinder assembly 4 has a fixed sleeve 42 with a spiral groove 421. The wedge-shaped unlocking block 41 has a tubular portion 43 that inserts into the sleeve 42. The tubular portion 43 has a drive pin 44 that inserts into the spiral groove 421. When the lock cylinder rotates, the drive pin 44 cooperates with the spiral groove 421 to drive the wedge-shaped unlocking block 41 to move upward. The wedge-shaped unlocking block 41 is slidably connected to the lock body 2, and the rotation of the wedge-shaped unlocking block 41 is restricted.

[0030] There is a pair of indicator parts 71. The indicator block 7 has a through hole 70 for accommodating the indicator parts 71. A second compression spring 7t is provided between the pair of indicator parts 71. The lock body 2 has a retaining recess 201 corresponding to the indicator parts 71 in the retaining position. The indicator parts 71 are spherical. When in the retaining position, the indicator parts 71 are partially accommodated in the retaining recess 201. When in the mechanical unlocking recording position, the indicator parts 71 are partially accommodated in the window 21.

[0031] The first compression spring 6t is located between the right ends of a pair of locking arms 6, and the right end of the locking arm 6 is provided with a spring fixing part 61 into which the first compression spring 6t is inserted.

[0032] The locking arm 6 has a semi-circular recess 62 in the middle for rotating connection with the lock body 2, and the lock body 2 has a semi-circular protrusion 202 that is accommodated in the semi-circular recess 62.

[0033] Button 1 is provided with an anti-falling protrusion 11 that can abut against the inner wall of lock body 2.

[0034] Keep the depression 201 as a hemispherical depression.

[0035] When the indicator block 7 is in the holding position, it abuts against the pressing part 411; when the indicator block 7 is in the mechanical unlocking recording position, it abuts against the abutting part 12.

[0036] The tubular portion 43 is slidably connected to an ejector rod 45 extending toward the lock hole. The ejector rod 45 is connected to a third compression spring 4t for driving the ejector rod 45 to press the plug 31 out of the lock hole. A plug 46 for supporting the third compression spring 4t is connected to the lower end of the tubular portion 43. The plug 46 has a pair of locking arms 461. The lower part of the tubular portion 43 has a locking groove 430 for engaging with the locking arms 461. Limiting protrusions 451 are provided on both sides of the lower end of the ejector rod 45. The tubular portion 43 has a limiting groove 431 for accommodating the limiting protrusions 451. The limiting groove 431... The upper part of the tubular portion 43 extends downward to the lower end face of the tubular portion 43. The position of the snap-fit ​​arm 461 corresponds to the position of the snap-fit ​​groove 430, and the snap-fit ​​arm 461 is partially accommodated in the snap-fit ​​groove 430. The plug 46 has a pin hole 460 corresponding to the drive pin 44. The tubular portion 43 has a through hole 4301 communicating with the pin hole 460. The lower inner wall of the sleeve 42 has a connecting protrusion 422. The lock cylinder 47 has a mating recess 471 that mates with the connecting protrusion 421. The upper end of the sleeve 42 abuts against the support portion 203 of the lock body 2, and the lower end of the sleeve 42 abuts against the lock cylinder 471. The plug 46 also has a first spring fixing post 462 into which the third compression spring is inserted. The lower end of the ejector rod 45 has a second spring fixing post 452 into which the third compression spring is inserted.

[0037] In this utility model, when button 1 is pressed down to unlock, the abutment part 12 can squeeze the indicator part 71 block, causing the indicator part 71 to move down and away from window 21 from the mechanical unlocking record position to the holding position. After the combination wheel assembly 5 is unlocked again after the lock cylinder is unlocked, pressing button 1 can achieve reset.

[0038] Furthermore, this application employs a single locking tongue structure that differs from existing technologies, ensuring that the locking arm 6 always engages with the annular recess 310 when struck.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A TSA combination padlock with unlocking prompt function, comprising a button, a lock body, a flexible lock beam, a mechanical lock cylinder assembly, and a combination wheel assembly, wherein one end of the flexible lock beam is fixedly connected to the lock body, and the other end has a plug that can be inserted into the key hole of the lock body, the plug having an annular recess; when the combination wheel assembly is unlocked, the button can be pressed down to unlock; when the combination wheel assembly is locked, the button is restricted from being pressed down, characterized in that... The lock body is provided with a pair of locking arms for engaging the annular recess, a first compression spring for keeping the locking arms engaged with the annular recess, an indicator block located between the mechanical lock cylinder assembly and the combination wheel assembly and below the locking arms, the indicator block having an indicator portion, the lock body having a window corresponding to the indicator portion, the button having a stop portion extending downward through the pair of locking arms, the button having an opening portion in the middle for pressing the pair of locking arms to open and unlock, the stop portion abutting against the upper end of the wheel axle of the combination wheel assembly, when the button is pressed down to unlock, the stop portion can press the indicator portion block to move the indicator portion downward away from the window from the mechanical unlocking record position to the holding position, the mechanical lock cylinder assembly having a wedge-shaped unlocking block that can move upward to press the pair of locking arms to open and unlock, the wedge unlocking block also having a pressing portion extending downward toward the indicator block, when the wedge unlocking block moves upward to unlock, the pressing portion can press the indicator block from the holding position to the mechanical unlocking record position.

2. The TSA combination padlock with unlocking prompt function according to claim 1, characterized in that, The opening portion is provided with a compression guide surface, and the locking arm is provided with a mating guide surface that cooperates with the compression guide surface.

3. The TSA combination padlock with unlocking prompt function according to claim 2, characterized in that, The mechanical lock cylinder assembly has a fixed sleeve with a spiral groove. The wedge-shaped unlocking block has a tubular part that inserts into the sleeve. The tubular part has a drive pin that inserts into the spiral groove. When the lock cylinder rotates, the drive pin cooperates with the spiral groove to drive the wedge-shaped unlocking block to move upward.

4. The TSA combination padlock with unlocking prompt function according to claim 3, characterized in that, The number of the indicator parts is a pair, the indicator block has a through hole for accommodating the indicator part, a second compression spring is provided between the pair of indicator parts, the lock body has a retaining recess corresponding to the indicator part in the retaining position, the indicator part is spherical, in the retaining position the indicator part is partially accommodated in the retaining recess, and in the mechanical unlocking record position the indicator part is partially accommodated in the window.

5. The TSA combination padlock with unlocking prompt function according to claim 4, characterized in that, The first compression spring is located between the right ends of the pair of locking arms, and the right end of the locking arm is provided with a spring fixing part into which the first compression spring is inserted.

6. The TSA combination padlock with unlocking prompt function according to claim 5, characterized in that, The locking arm has a semi-circular recess in the middle for rotatably connecting with the lock body, and the lock body has a semi-circular protrusion that is accommodated in the semi-circular recess.

7. The TSA combination padlock with unlocking prompt function according to claim 6, characterized in that, The button is provided with an anti-fall-off protrusion that can abut against the inner wall of the lock body.

8. The TSA combination padlock with unlocking prompt function according to claim 7, characterized in that, The retaining recess is a hemispherical recess.

9. The TSA combination padlock with unlocking prompt function according to claim 8, characterized in that, When the indicator block is in the holding position, it abuts against the pressing part; when the indicator block is in the mechanical unlocking record position, it abuts against the abutting part.

10. The TSA combination padlock with unlocking prompt function according to claim 9, characterized in that, The tubular portion is slidably connected to an ejector rod extending toward the lock hole. The ejector rod is connected to a third compression spring for driving the ejector rod to press the plug away from the lock hole. The lower end of the tubular portion is connected to a plug for supporting the third compression spring. The plug has a pair of snap-fit ​​arms. The lower part of the tubular portion has a snap-fit ​​groove for engaging with the snap-fit ​​arms. The lower end of the ejector rod has limiting protrusions on both sides. The tubular portion has a limiting groove for accommodating the limiting protrusions. The limiting groove extends downward from the upper part of the tubular portion to the lower end face of the tubular portion. The snap-fit ​​arms are positioned corresponding to the snap-fit ​​grooves, and the snap-fit ​​arms are partially accommodated in the snap-fit ​​grooves. The plug has a pin hole corresponding to the driving pin. The tubular portion has a through hole communicating with the pin hole. The lower inner wall of the sleeve has a connecting protrusion. The lock cylinder has a mating protrusion that engages with the connecting protrusion. The upper end of the sleeve abuts against the support part of the lock body, and the lower end of the sleeve abuts against the lock cylinder.

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