A large size anti-theft coded padlock with ejectable shackle

Abstract

The utility model relates to padlock technical field, concretely is a big size theftproof coded padlock that can eject lock beam, including casing, lock beam and coded lock, the lock beam is U shape, the through -hole that is compatible with two free ends of lock beam is arranged to casing top, the lock hook spring that is connected with one end of lock beam is arranged in casing, the limiting piece that is contacted with one end of lock beam is arranged in the other end of casing, when the password is correct, the limiting of the lower dial plate that the dial piece release of coded lock, the slider body is under the driving of button switch and drives lock hook spring to move, makes it exit the card slot, the lock beam is pushed at the moment compressed lock hook spring, makes the free end of lock beam protrude casing, a small cylinder is done on button switch, the small hole of slider body is inserted in the cylinder, under the condition that button switch is knocked by external force, button switch will punch the small hole of slider, play the role of knocking and destroying and cannot lock.

Description

Technical Field

[0001] This utility model relates to the field of padlock technology, specifically a large anti-theft combination padlock with a spring-loaded lock beam. Background Technology

[0002] Large anti-theft combination padlocks are a type of large lock suitable for scenarios requiring high security. They combine the convenience of combination unlocking with the practical structure of padlocks and are widely used in warehouse doors, containers, outdoor storage boxes, and other places where unauthorized opening needs to be prevented.

[0003] Existing padlocks of the same type do not have a spring-loaded opening function, and the switch is easily opened after the lock body is hit, resulting in poor anti-theft performance. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a large anti-theft combination padlock with a spring-loaded locking beam.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a large anti-theft combination padlock with a spring-loaded locking beam, comprising a housing, a locking beam, and a combination lock. The locking beam is U-shaped. The housing has through holes on its upper surface that adapt to the two free ends of the locking beam. A locking hook spring connected to one end of the locking beam is disposed within the housing. A limiting member contacting one end of the locking beam is disposed at the other end of the housing. The limiting member includes a locking hook spring, a slider spring, a slider body, a limiting frame, and a support plate. A support plate is also disposed within the housing near the locking hook spring. The slider body includes an upper deflector plate, a crossbeam, and a lower deflector plate. An upper deflector plate is disposed above one end of the crossbeam, and the other end of the crossbeam... A lower deflector plate is provided below. The two ends of the slider spring are connected to the support plate and the upper deflector plate respectively. A limiting frame is also provided inside the housing to limit the horizontal sliding of the slider body. The crossbeam is slidably connected to the limiting frame. A locking hook spring is slidably provided inside the housing. The other end of the locking beam is provided with a groove that contacts the locking hook spring. The locking hook spring is also provided with a notch that matches the upper deflector plate. A push-button switch is provided on one side of the housing. The push-button switch is slidably connected to the housing. A cylinder connected to the lower deflector plate is provided on the push-button switch. The combination lock is also embedded in the bottom wall of the housing. The output end of the combination lock is provided with a deflector plate that abuts against the lower deflector plate.

[0008] Preferably, the combination lock includes a lock cylinder body and combination wheels, with a plurality of combination wheels sleeved on the lock cylinder body, the output end of the lock cylinder body being connected to the lever, and the combination wheels protruding from the bottom wall of the housing.

[0009] Preferably, the housing includes a lock cylinder upper cover, a lock cylinder lower cover, and a lock shell, wherein the lock cylinder upper cover is inserted into the lock cylinder lower cover, and the lock shell is sleeved on the lock cylinder upper cover and the lock cylinder lower cover.

[0010] To prevent the button switch from being struck, this utility model is improved by making the button switch flush with the side wall of the housing.

[0011] To prevent the ejected lock hook from detaching from the housing, this utility model is improved by providing a long pin on one side of the lower cover of the lock cylinder to limit one free end of the lock beam. The long pin passes through the lock housing and is positioned above the lock hook spring.

[0012] Preferably, the upper and lower covers of the lock cylinder are provided with positioning grooves on the side near the push-button switch, and the housing is provided with a short pin that passes through the positioning groove.

[0013] Preferably, a code adjustment switch for adjusting the combination lock password is also provided below the housing.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a large anti-theft combination padlock with a spring-loaded lock beam, which has the following beneficial effects:

[0016] This large anti-theft combination padlock with ejectable locking beam, when the password is correct, the combination lock's lever releases its limit on the lower lever plate, and the slider body, driven by the push of the button switch, moves the lock hook spring, causing it to exit the slot. At this time, the compressed lock hook spring pushes the lock beam, causing one free end of the lock beam to protrude from the housing.

[0017] A small cylinder is made on the push-button switch. The cylinder is inserted into a small hole reserved in the slider body. When the push-button switch is hit by external force, the push-button switch will puncture the small hole in the slider, thus preventing it from being unlocked.

[0018] If the combination wheel is in the wrong position, the output end of the lock cylinder cannot slide, thus locking the lock. The button switch cannot be pressed and the lock cannot be opened. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0020] Figure 2 This is an exploded view of the structure of this utility model;

[0021] Figure 3 The structure of this utility model Figure 2 Enlarged view of a portion of the image;

[0022] Figure 4This is a partial schematic diagram of the structure of this utility model.

[0023] In the diagram: 1. Lock beam; 2. Lock hook spring; 3. Lock hook spring; 4. Slider spring; 5. Slider body; 6. Limit bracket; 7. Support plate; 8. Upper lever plate; 9. Crossbeam; 10. Lower lever plate; 11. Push button switch; 12. Cylinder; 13. Lock cylinder body; 14. Combination wheel; 15. Lever; 16. Lock cylinder upper cover; 17. Lock cylinder lower cover; 18. Lock case; 19. Long pin; 20. Short pin; 21. Code switching switch. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-4 A large anti-theft combination padlock with a spring-loaded locking beam includes a housing, a locking beam 1, and a combination lock. The locking beam 1 is U-shaped. The housing has through holes at its top that fit the two free ends of the locking beam 1. A locking hook spring 2 connected to one end of the locking beam 1 is located inside the housing. A limiting component, contacting one end of the locking beam 1, is located at the other end of the housing. The limiting component includes a locking hook spring 3, a slider spring 4, a slider body 5, a limiting frame 6, and a support plate 7. A support plate 7 is also located inside the housing near the locking hook spring 2. The slider body 5 includes an upper deflector plate 8, a crossbeam 9, and a lower deflector plate 10. The upper deflector plate 8 is located above one end of the crossbeam 9, and the lower deflector plate 10 is located below the other end of the crossbeam 9. The two ends of the block spring 4 are connected to the support plate 7 and the upper lever plate 8 respectively. The housing is also provided with a limiting frame 6 to limit the horizontal sliding of the slider body 5. The crossbeam 9 is slidably connected to the limiting frame 6. A locking hook spring 3 is slidably arranged in the housing. The other end of the locking beam 1 is provided with a groove that contacts the locking hook spring 3. The locking hook spring 3 is also provided with a notch that matches the upper lever plate 8. A push button switch 11 is provided on one side of the housing. The push button switch 11 is slidably connected to the housing. A cylinder 12 connected to the lower lever plate 10 is provided on the push button switch 11. The combination lock is also embedded in the bottom wall of the housing. The output end of the combination lock is provided with a lever 15 that abuts against the lower lever plate 10.

[0026] The locking beam 1 is U-shaped, with both ends inserted into the through holes of the housing. One end is connected to the locking hook spring 2 inside the housing (the locking hook spring 2 is in a compressed state), and the other end is fixed by a limiting member. At this time, the locking hook spring 3 engages with the slot at the other free end of the locking beam 1. The slider body 5 remains stationary under the tension of the slider spring 4. The upper deflector plate 8 engages with the notch of the locking hook spring 3, restricting the sliding of the locking hook spring 3. The deflector plate 15 of the combination lock abuts against the lower deflector plate 10 of the slider body 5, preventing the slider from moving as a whole, forming multiple locks to ensure that the locking beam 1 cannot pop out.

[0027] When the combination lock is in the unlocked state, pressing the button switch 11 on the side of the housing causes the button switch 11 to abut against the lower lever plate 10 via the cylinder 12. In this embodiment, the lower lever plate 10 has a groove that matches the cylinder 12. At this time, the lock cylinder body 13 can drive the lever 15 to move. Subsequently, the slider body 5 moves horizontally under the limit of the limiting frame 6. The lock hook spring 3 slides under the drive of the slider body 5 and exits the lock beam 1 slot. The compressed lock hook spring 2 releases its elastic force, pushing one end of the lock beam 1 out of the housing through hole to achieve rapid ejection unlocking. Meanwhile, the long pin shaft 19 limits the other end of the lock beam 1 to prevent it from completely detaching from the housing.

[0028] In this embodiment, the combination lock includes a lock cylinder body 13 and combination wheels 14. Several sets of combination wheels 14 are sleeved on the lock cylinder body 13. The output end of the lock cylinder body 13 is connected to the lever 15. The combination wheels 14 protrude from the bottom wall of the housing. If the combination wheels 14 are in the wrong position, the lever 15 of the lock cylinder body 13 will remain in contact with the lower lever 10, the slider body 5 will not be able to move, the button switch 11 will not be able to be pressed, the lock hook spring 3 will always be engaged with the lock beam 1 slot, and the lock beam 1 will not be able to pop out.

[0029] When an external force strikes the button switch 11, the cylinder 12 on the button switch 11 will puncture the groove reserved in the slider body 5, causing the connection between the two to fail. Even if the button switch 11 is damaged, the slider body 5 will still be unable to move the locking hook spring 3, thus preventing illegal opening.

[0030] The housing consists of a lock cylinder upper cover 16 and a lock cylinder lower cover 17, which are then fitted with a lock shell 18. The lock shell 18 is reinforced by a short pin 20 passing through a positioning groove, which improves the overall impact resistance. Combined with the ejection design of the lock beam 1 and the anti-accidental opening structure, it balances convenience and high anti-theft performance.

[0031] In this embodiment, the push button switch 11 is flush with the side wall of the housing, avoiding excessive pressing of the traditional raised push button switch 11.

[0032] The combination of the combination wheel 14 and the lock cylinder body 13 can be adjusted by the adjustment switch 21 at the bottom of the housing. In this embodiment, the lock cylinder body 13 includes a cam, a camshaft and a return spring. When the combination wheel 14 is in the correct position, the cam groove is aligned with the camshaft protrusion, and the camshaft can slide freely to unlock the transmission path. When the position is incorrect, the two are misaligned, locking the camshaft and preventing the button switch 11 from operating. When adjusting the combination wheel 14, the position of the camshaft can be adjusted by the adjustment switch 21, thereby adjusting the position of the combination wheel 14 that can open the combination lock.

[0033] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0034] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0035] 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.

Claims

1. A large anti-theft combination padlock with a retractable locking beam, comprising a housing, a locking beam (1), and a combination lock, characterized in that, The locking beam (1) is U-shaped. A through hole is provided on the upper part of the housing to match the two free ends of the locking beam (1). A locking hook spring (2) connected to one end of the locking beam (1) is provided inside the housing. A limiting member is provided at the other end of the housing to contact one end of the locking beam (1). The limiting member includes a locking hook spring (3), a slider spring (4), a slider body (5), a limiting frame (6), and a support plate (7). A support plate (7) is also provided inside the housing near the locking hook spring (2). The slider body (5) includes an upper deflector plate (8), a crossbeam (9), and a lower deflector plate (10). An upper deflector plate (8) is provided above one end of the crossbeam (9), and a lower deflector plate (10) is provided below the other end of the crossbeam (9). The two ends of the slider spring (4) are respectively connected to the support plate (8). The support plate (7) and the upper lever plate (8) are connected. The housing is also provided with a limiting frame (6) to limit the horizontal sliding of the slider body (5). The crossbeam (9) is slidably connected to the limiting frame (6). The housing is provided with a horizontally sliding locking hook spring (3). The other end of the locking beam (1) is provided with a slot that contacts the locking hook spring (3). The locking hook spring (3) is also provided with a notch that matches the upper lever plate (8). A button switch (11) is provided on one side of the housing. The button switch (11) is slidably connected to the housing. The button switch (11) is provided with a cylinder (12) that connects to the lower lever plate (10). The bottom wall of the housing is also embedded with the combination lock. The output end of the combination lock is provided with a lever (15) that abuts against the lower lever plate (10).

2. The large anti-theft combination padlock with a spring-loaded locking beam as described in claim 1, characterized in that, The combination lock includes a lock cylinder body (13) and combination wheels (14). Several sets of combination wheels (14) are sleeved on the lock cylinder body (13). The output end of the lock cylinder body (13) is connected to the lever (15). The combination wheels (14) protrude from the bottom wall of the housing.

3. A large anti-theft combination padlock with a spring-loaded locking beam as described in claim 2, characterized in that, The housing includes a lock cylinder upper cover (16), a lock cylinder lower cover (17) and a lock shell (18). The lock cylinder upper cover (16) is inserted into the lock cylinder lower cover (17), and the lock shell (18) is sleeved on the lock cylinder upper cover (16) and the lock cylinder lower cover (17).

4. A large anti-theft combination padlock with a spring-loaded locking beam as described in claim 3, characterized in that, The push-button switch (11) is flush with the side wall of the housing.

5. A large anti-theft combination padlock with a spring-loaded locking beam as described in claim 4, characterized in that, The lower cover (17) of the lock cylinder is provided with a long pin (19) on one side to limit one free end of the lock beam (1). The long pin (19) passes through the lock shell (18) and is located above the lock hook spring (2).

6. A large anti-theft combination padlock with a spring-loaded locking beam as described in claim 5, characterized in that, The upper cover (16) and lower cover (17) of the lock cylinder are provided with positioning grooves on the side near the push button switch (11), and a short pin (20) is provided on the housing through the positioning groove.

7. A large anti-theft combination padlock with a spring-loaded locking beam as described in claim 6, characterized in that, A code adjustment switch (21) for adjusting the combination lock password is also provided below the housing.

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