Elastic padlock with lock cylinder capable of idling

Abstract

The utility model belongs to the technical field of locks, and particularly relates to an elastic padlock with a lock cylinder capable of idling. The lock beam is arranged on the lock body, a steel ball matched with the lock beam is arranged in the lock body, and the lock body is locked after the lock beam is matched with the steel ball lock beam; the torsion column connector is located in the lock body, and the torsion column connector comprises a positioning limiting piece, a torsion spring and a connector clamping spring; the idling structure comprises a lock cylinder which is arranged in the lock body and matched with the torsion column connector; when a non-key object is inserted into a key hole and violently rotates, the inner structure of the lock cylinder is deformed and fractured, so that the lock cylinder idles. The elastic padlock has the beneficial effects that by arranging the idling structure, the elastic padlock can automatically enter an idling state when a non-original key tries to open the lock violently, so that an illegal intruder is effectively prevented from opening the lock.

Description

Technical Field

[0001] The present application belongs to the field of lock technology, and in particular relates to a spring padlock with an idle-rotating lock cylinder. Background Art

[0002] There are many types of locks, including pin and tumbler locks, leaf locks, electronic locks, remote control locks, and magnetic locks. Padlocks are the oldest and largest family of locks, and it can be said that all other locks are descended from them. The padlock body is equipped with a circular or straight metal stem, or "bar," which can be snapped onto the padlock body, allowing it to snap directly onto the lock body, creating a closed lock.

[0003] The publication number is CN201953174U, a door lock with a leaf-type idle-rotating lock cylinder, which includes a leaf-type idle-rotating lock cylinder and is also characterized in that it has a switch rotation structure, which is composed of a lock cylinder sleeve, a shift block inner sleeve, a shift block outer sleeve, a lock cylinder positioning pin, a shift pin and a spring, and a pin pair and a spring; the leaf-type idle-rotating lock cylinder is installed in the lock cylinder sleeve, the shift block inner sleeve cylinder is movably matched with the hole of the closed end of the lock cylinder and has a groove to match with the key; the shift block outer sleeve cylinder has a hole that flexibly fits the shift block inner sleeve and has a groove connected to the shift block; the lock cylinder sleeve is movably matched with the lock cylinder, a lock cylinder positioning pin is fixed on the lock cylinder, and the lock cylinder sleeve and the lock head sleeve have holes that match the pin pair and the spring.

[0004] When the above patent is rotated with a non-original key, the lock core sleeve cannot drive the shift block outer sleeve and the shift block to rotate and unlock, and the non-original key can only rotate idly, which plays a role in preventing theft and protecting the lock from being damaged. However, in actual use, the effect is not ideal and it is still easy to be unlocked by force, and needs to be improved. Utility Model Content

[0005] The purpose of this application is to provide a spring padlock with a lock cylinder capable of idling, which can solve the above problems.

[0006] The purpose of this application is to provide a spring-loaded padlock with an idle-rotating lock cylinder, comprising:

[0007] The lock body has a cover at the bottom;

[0008] The lock beam is provided on the lock body, and a steel ball adapted to the lock beam is provided in the lock body, and the lock body is locked after cooperating with the steel ball lock beam;

[0009] A torsion column joint is located in the lock body, and the torsion column joint includes a positioning limit plate, a torsion spring, and a joint retaining spring;

[0010] The idle rotation structure includes a lock core, which is arranged in the lock body and cooperates with the torsion column joint;

[0011] Among them, when a non-key object is inserted into the keyhole and violently turned, the structure inside the lock cylinder will deform and break, causing the lock cylinder to rotate idly.

[0012] The invention adopts a spring padlock with an idle-rotating lock core. In the present application, the lock body serves as the main structure of the padlock. A cover is provided at the bottom thereof to seal the interior of the lock body and prevent the intrusion of dust and moisture. A lock beam is provided on the lock body to connect and lock two objects that need to be fixed. A steel ball adapted to the lock beam is provided in the lock body. When the lock beam is inserted into a specific position, the steel ball will be stuck in the groove on the lock beam to complete the locking. The torsion column joint includes components such as a positioning limit plate, a torsion spring and a joint retaining spring, which are used to ensure that the lock core can rotate smoothly under the action of the correct key and transmit torque to the unlocking mechanism inside the lock body. The idle-rotating structure includes a lock core, which is provided in the lock body and cooperates with the torsion column joint. When a non-key object (such as a violent unlocking tool) is inserted into the keyhole and attempts to rotate, the special structure inside the lock core will deform or break, causing the connection between the lock core and the torsion column joint to fail, thereby causing the lock core to enter an idle-rotating state, which can effectively prevent violent unlocking.

[0013] By providing an idle-operation mechanism, the elastic padlock of the present application automatically enters an idle state when a non-original key is used to forcibly unlock the lock, effectively preventing unauthorized intruders from opening the lock. Conventional locks are often severely damaged or even rendered unusable when subjected to violent unlocking. However, when subjected to violent unlocking, the elastic padlock of the present application, while the internal structure of the lock cylinder may deform or break, the lock body and other key components remain intact, allowing continued use after replacing the lock cylinder.

[0014] Furthermore, the lock core includes:

[0015] The blade cover has a first protrusion and a second protrusion at one end, the first protrusion and the second protrusion are wrapped to form an installation space, and a first gap and a second gap are formed between the first protrusion and the second protrusion;

[0016] An idle positioning number plate is arranged in the installation space, comprising a plate body and a positioning angle arranged on the plate body, wherein the positioning angle is adapted to the first gap, and the rotation of the positioning angle is limited by the first gap;

[0017] a spacer, disposed in the installation space;

[0018] A number plate is arranged in the installation space;

[0019] A roller pin is provided on the blade sleeve and is located in the second gap, and a locking groove adapted to the roller effect is provided in the lock body;

[0020] Wherein, the first protrusion and the second protrusion are both arc-shaped.

[0021] A first protrusion and a second protrusion are provided at one end of the blade sleeve, and an installation space is formed between the two protrusions. At the same time, a first gap and a second gap are formed between them. The first protrusion and the second protrusion are both designed to be arc-shaped, which not only increases the strength of the lock core, but also optimizes its rotation performance in the lock body.

[0022] The idle positioning number plates, spacers and number plates are alternately installed in the blade sleeve to form a lock core. Each number plate is provided with a groove that cooperates with the roller pin. The positions of the grooves of different number plates are different. The roller pin is installed between the lock body and the lock core. Since part of the roller pin is embedded in the locking groove of the lock body and the other part is located in the second gap, the lock core cannot be rotated at will and the lock cannot be opened. Only by using the key to rotate the number plate will the roller pin fall into the groove of the number plate and leave the lock body. At this time, the key can rotate the lock core to complete the unlocking.

[0023] In this application, forced unlocking is achieved by rotating the retaining angle on the number plate. During rotation, the retaining angle's movement is limited by the angular range of the first gap. When forced unlocking is attempted, the retaining angle breaks due to excessive torque, preventing the roller pin from falling into the groove of the number plate. This causes the lock cylinder to idle and become unopenable, thus preventing the lock from being illegally opened. Furthermore, the mechanical structure within the lock cylinder is not seriously damaged by the retaining angle breaking, allowing continued use after replacing the retaining angle.

[0024] Furthermore: there are multiple spacers and number pieces, the number of the idle positioning number piece is one, and the number piece and the spacer are spaced apart, and the idle positioning number piece is located at the bottom.

[0025] Multiple spacers and number plates are provided, spaced apart. The spacers provide separation and support, ensuring the stability and reliability of the lock cylinder's internal structure. The number plate, another crucial component, is each equipped with a groove that mates with a roller pin. The grooves for different number plates are positioned differently, providing the lock cylinder with exceptional security and complexity. The special design of the idle-motion positioning number plate, multiple spacers, and number plates, as well as the interaction between the roller pin and the locking groove, creates an extremely secure and complex lock cylinder, making it extremely difficult to open the lock with a non-original key or a forceful unlocking tool, either through simple attempts or brute force. Furthermore, the idle-motion positioning number plate, located at the very bottom, serves as a crucial barrier against violent unlocking. Once the positioning angle breaks, the lock cylinder enters an idle state, preventing the risk of unauthorized opening.

[0026] In addition, although the lock core contains multiple components, by limiting the number of idle positioning number plates to one and rationally arranging the spacers and number plates, the structure of the lock core is relatively simplified, which not only reduces the manufacturing cost but also improves the reliability and durability of the lock core.

[0027] Furthermore, the idle positioning number plate and the number plate are both provided with grooves, and the angle of the groove on each number plate corresponds to the key teeth.

[0028] The grooves not only help locate the lock cylinder but also provide an additional layer of security against attempts to open the lock with a non-original key. Each number plate has a groove that mates with a roller pin. The angle of these grooves matches the knurling on the key. Only the correct key can accurately guide the roller pin into the groove, unlocking the lock cylinder. When the correct key is inserted into the lock cylinder, the knurling on the key matches the angle of the groove on the number plate. As the key is turned, the roller pin is guided into the groove, allowing the lock cylinder to rotate smoothly. If a non-original key is inserted, the knurling on the key does not match the angle of the groove on the number plate. In this case, the roller pin cannot be guided into the groove, and the lock cylinder will remain locked or enter an idle state. If the lock cylinder is forced open, the detent on the idle number plate may break due to excessive torque. Once the detent breaks, the lock cylinder loses its detent function and enters an idle state, effectively preventing unauthorized opening.

[0029] Furthermore, a protective cover made of aluminum alloy is provided on the outside of the lock body to provide protection and prevent rust.

[0030] The aluminum alloy protective cover effectively protects the lock body from direct damage from the external environment, such as impacts and scratches, and also prevents damage caused by prolonged exposure to harsh environments (such as humidity, high temperatures, and low temperatures). Furthermore, aluminum alloy has excellent corrosion resistance, effectively preventing the lock body from rusting. Even if the lock body is exposed to moisture for a long time, the aluminum alloy protective cover can provide effective rust protection.

[0031] The beneficial effects of this application are:

[0032] 1. By setting up an idle-running structure, the elastic padlock of the present application can automatically enter an idle-running state when a non-original key is used to forcibly unlock the lock, thereby effectively preventing illegal intruders from opening the lock;

[0033] 2. In this application, forced unlocking is achieved by rotating the locating angle on the number plate. During rotation, the movement of the locating angle is limited by the angular range of the first gap. When forced unlocking is attempted, the locating angle will break due to excessive torque, preventing the roller pin from falling into the groove of the number plate. At this time, the lock cylinder will be in an idling state and cannot be opened, thus avoiding the risk of illegal opening of the lock. At the same time, due to the breaking of the locating angle, the internal mechanical structure of the lock cylinder will not be seriously damaged, and the locating angle can be replaced and continued to be used;

[0034] 3. The aluminum alloy protective cover effectively protects the lock body from direct damage from the external environment, such as impacts and scratches. It also prevents damage caused by prolonged exposure to harsh environments (such as humidity, high temperatures, and low temperatures). At the same time, aluminum alloy has excellent corrosion resistance and can effectively prevent the lock body from rusting. Even if the lock body is exposed to a humid environment for a long time, the aluminum alloy protective cover can provide effective rust protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a structural diagram of the utility model;

[0036] Figure 2 This is a structural diagram of the utility model's idle rotation positioning number plate;

[0037] Figure 3 This is a schematic structural diagram of the blade sleeve of the utility model;

[0038] Figure 4 It is a side view of the blade sleeve of the utility model;

[0039] Figure 5 This is a bottom view of the idling structure of the utility model;

[0040] Figure 6 It is a structural schematic diagram of the number plate, spacer and roller pin of the utility model.

[0041] The reference numerals in the figure are: 100, lock body; 110, blind cover; 200, lock beam; 210, steel ball; 300, torsion column joint; 310, positioning limit plate; 320, torsion spring; 330, joint retaining spring; 400, idling structure; 410, lock core; 420, blade cover; 421, first protrusion; 422, second protrusion; 423, installation space; 424, first gap; 425, second gap; 430, idling positioning number plate; 431, plate body; 432, positioning angle; 440, spacer; 450, number plate; 460, roller pin; 461, locking groove; 470, groove; 500, protective cover. DETAILED DESCRIPTION

[0042] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0043] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0044] The elastic padlock with idling lock cylinder provided in the embodiment of the present application is described in detail below with reference to specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0045] Example 1:

[0046] like Figure 1 As shown, the embodiment of the present application provides a spring padlock with an idle-rotating lock cylinder, which is characterized by comprising:

[0047] The lock body 100 has a cover 110 at its bottom;

[0048] The lock beam 200 is provided on the lock body 100. A steel ball 210 adapted to the lock beam 200 is provided in the lock body 100. The lock body 100 is locked after the steel ball 210 and the lock beam 200 cooperate.

[0049] The torsion post joint 300 is located in the lock body 100 and includes a positioning and limiting piece 310, a torsion spring 320, and a joint retaining spring 330;

[0050] The idle rotation structure 400 includes a lock core 410, which is disposed in the lock body 100 and cooperates with the torsion column joint 300;

[0051] When a non-key object is inserted into the keyhole and violently rotated, the internal structure of the lock core 410 will be deformed or broken, causing the lock core 410 to rotate idly.

[0052] In some implementations of the embodiments of this application, Figure 1 As shown, a spring padlock with an idle-rotating lock core is characterized by comprising:

[0053] The lock body 100 has a cover 110 at its bottom;

[0054] The lock beam 200 is provided on the lock body 100. A steel ball 210 adapted to the lock beam 200 is provided in the lock body 100. The lock body 100 is locked after the steel ball 210 and the lock beam 200 cooperate.

[0055] The torsion post joint 300 is located in the lock body 100 and includes a positioning and limiting piece 310, a torsion spring 320, and a joint retaining spring 330;

[0056] The idle rotation structure 400 includes a lock core 410, which is disposed in the lock body 100 and cooperates with the torsion column joint 300;

[0057] When a non-key object is inserted into the keyhole and violently rotated, the internal structure of the lock core 410 will be deformed or broken, causing the lock core 410 to rotate idly.

[0058] Furthermore, a protective cover 500 made of aluminum alloy material is provided on the outside of the lock body 100 .

[0059] Can play a protective and anti-rust role

[0060] The aluminum alloy protective cover 500 effectively protects the lock body 100 from direct damage from the external environment, such as impacts and scratches. It also protects the lock body 100 from damage caused by prolonged exposure to harsh environments (such as humidity, high temperatures, and low temperatures). Furthermore, aluminum alloy has excellent corrosion resistance and effectively prevents the lock body 100 from rusting. Even if the lock body 100 is exposed to humidity for a long time, the aluminum alloy protective cover 500 can provide effective rust protection.

[0061] Example 2:

[0062] An embodiment of the present application provides a spring-loaded padlock with an idle-rotating lock cylinder. In addition to the above-mentioned technical features, the spring-loaded padlock with an idle-rotating lock cylinder in the embodiment of the present application also includes the following technical features.

[0063] like Figures 2 to 6 As shown, the lock core 410 includes:

[0064] The blade cover 420 has a first protrusion 421 and a second protrusion 422 at one end. The first protrusion 421 and the second protrusion 422 are wrapped to form an installation space 423, and a first gap 424 and a second gap 425 are formed between the first protrusion 421 and the second protrusion 422.

[0065] The idle rotation positioning number plate 430 is disposed in the installation space 423 and includes a plate body 431 and a positioning angle 432 disposed on the plate body 431. The positioning angle 432 is adapted to the first gap 424, and the rotation of the positioning angle 432 is limited by the first gap 424.

[0066] a spacer 440 disposed in the installation space 423;

[0067] Number plate 450, disposed in the installation space 423;

[0068] The roller pin 460 is provided on the blade sleeve 420 and is located in the second gap 425, and a locking groove 461 adapted to the roller effect is provided in the lock body 100;

[0069] The first protrusion 421 and the second protrusion 422 are both arc-shaped.

[0070] In an embodiment of the present application, a first protrusion 421 and a second protrusion 422 are provided at one end of the blade sleeve 420, and an installation space 423 is formed between the two protrusions. At the same time, a first gap 424 and a second gap 425 are formed between them. The first protrusion 421 and the second protrusion 422 are both designed to be arc-shaped, which not only increases the strength of the lock core 410, but also optimizes its rotation performance in the lock body 100.

[0071] The idle-rotating positioning number plates 430, spacers 440 and number plates 450 are alternately installed in the blade sleeve 420 to form the lock core 410. Each number plate 450 is provided with a groove 470 that cooperates with the roller pin 460. The positions of the grooves 470 of different number plates 450 are different. The roller pin 460 is installed between the lock body 100 and the lock core 410. Since the roller pin 460 is partially embedded in the locking groove 461 of the lock body 100 and the other part is located in the second gap 425, the lock core 410 cannot be rotated at will, and the lock cannot be opened. Only by using the key to rotate the number plate 450, the roller pin 460 falls into the groove 470 of the number plate 450 and leaves the lock body 100. At this time, the key can rotate the lock core 410 to complete the unlocking.

[0072] In this application, forced unlocking is achieved by rotating the retaining angle 432 on the number plate 430. During rotation, the movement of the retaining angle 432 is limited by the angular range of the first gap 424. When forced unlocking is attempted, the retaining angle 432 may break due to excessive torque, preventing the roller pin 460 from falling into the groove 470 of the number plate 450. At this time, the lock cylinder 410 will be in an idle state and cannot be opened, thus preventing the risk of illegal opening of the lock. At the same time, due to the breakage of the retaining angle 432, the internal mechanical structure of the lock cylinder 410 will not be seriously damaged, and the retaining angle 432 can be replaced and continued to be used.

[0073] Example 3:

[0074] An embodiment of the present application provides a spring-loaded padlock with an idle-rotating lock cylinder. In addition to the above-mentioned technical features, the spring-loaded padlock with an idle-rotating lock cylinder in the embodiment of the present application also includes the following technical features.

[0075] like Figures 2 to 6 As shown, there are multiple spacers 440 and number pieces 450, and the number piece 430 for idling is one. The number piece 450 and the spacer 440 are spaced apart, and the idling number piece 430 is located at the bottom.

[0076] In this embodiment, multiple spacers 440 and number plates 450 are provided, spaced apart. The spacers 440 provide separation and support, ensuring the stability and reliability of the internal structure of the lock cylinder 410. The number plates 450 are another important component of the lock cylinder 410. Each number plate 450 is provided with a groove 470 that mates with the roller pin 460. The position of the groove 470 varies between number plates 450, providing the lock cylinder 410 with extremely high security and complexity. The special design of the idle positioning number plate 430, the multiple spacers 440, and the number plates 450, as well as the interaction between the roller pin 460 and the locking groove 461, makes the lock cylinder 410 extremely secure and complex, making it difficult to open the lock with a non-original key or a forcible unlocking tool through simple attempts or brute force. Furthermore, the idle positioning number plate 430, located at the very bottom, plays a crucial role in preventing violent unlocking. Once the positioning angle 432 is broken, the lock core 410 will enter an idling state, thereby avoiding the risk of the lock being illegally opened.

[0077] In addition, although the lock core 410 contains multiple components, by limiting the number of idle positioning number plates 430 to one and rationally arranging the spacers 440 and number plates 450, the structure of the lock core 410 is relatively simplified, which not only reduces the manufacturing cost but also improves the reliability and durability of the lock core 410.

[0078] Example 4:

[0079] An embodiment of the present application provides a spring-loaded padlock with an idle-rotating lock cylinder. In addition to the above-mentioned technical features, the spring-loaded padlock with an idle-rotating lock cylinder in the embodiment of the present application also includes the following technical features.

[0080] like Figures 2 to 6 As shown, both the idle positioning number plate 430 and the number plate 450 are provided with a groove 470 , and the angle of the groove 470 on each number plate 450 corresponds to the key teeth.

[0081] In this embodiment, the provision of the grooves 470 not only facilitates positioning of the lock cylinder 410 but also provides an additional layer of security when attempting to unlock the lock using a non-original key. Each number plate 450 is provided with a groove 470 that mates with the roller pin 460. The angles of these grooves 470 correspond to the knurling on the key. Only the correct key can accurately guide the roller pin 460 into the groove 470, thereby unlocking the lock cylinder 410. When the correct key is inserted into the lock cylinder 410, the knurling on the key aligns with the angle of the groove 470 on the number plate 450. As the key is rotated, the roller pin 460 is guided into the groove 470, allowing the lock cylinder 410 to rotate smoothly. If a non-original key is inserted, the knurling on the key does not align with the angle of the groove 470 on the number plate 450. In this case, the roller pin 460 cannot be guided into the groove 470, and the lock cylinder 410 will remain locked or enter an idle state. If an attempt is made to open the lock cylinder 410 by force, the positioning angle 432 on the idle positioning number plate 430 may break due to excessive torque. Once the positioning angle 432 breaks, the lock cylinder 410 will lose its positioning function and enter an idle state, thereby effectively preventing the lock from being illegally opened.

[0082] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0083] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A spring padlock with an idle-rotating lock cylinder, characterized in that: include: The lock body (100) has a cover (110) at the bottom; A lock beam (200) is provided on the lock body (100), and a steel ball (210) adapted to the lock beam (200) is provided in the lock body (100), and the lock body (100) is locked after the lock beam (200) and the steel ball (210) cooperate with each other; A torsion post joint (300) is located in the lock body (100), and the torsion post joint (300) includes a positioning and limiting piece (310), a torsion spring (320), and a joint retaining spring (330); An idle rotation structure (400) includes a lock core (410) disposed in the lock body (100) and cooperating with the torsion column joint (300); When a non-key object is inserted into the keyhole and violently rotated, the internal structure of the lock core (410) will be deformed or broken, causing the lock core (410) to rotate idly.

2. The elastic padlock with an idle-rotating lock cylinder according to claim 1, characterized in that: The lock core (410) comprises: The blade sleeve (420) is provided with a first protrusion (421) and a second protrusion (422) at one end, the first protrusion (421) and the second protrusion (422) are wrapped to form an installation space (423), and a first gap (424) and a second gap (425) are formed between the first protrusion (421) and the second protrusion (422); An idle positioning number plate (430) is arranged in the installation space (423), comprising a plate body (431) and a positioning angle (432) arranged on the plate body (431), wherein the positioning angle (432) is adapted to the first gap (424), and the rotation of the positioning angle (432) is limited by the first gap (424); A spacer (440) is disposed in the installation space (423); A number plate (450) is disposed in the installation space (423); A roller pin (460) is provided on the blade sleeve (420) and is located in the second gap (425), and a locking groove (461) adapted to the roller effect is provided in the lock body (100); Wherein, the first protrusion (421) and the second protrusion (422) are both arc-shaped.

3. The elastic padlock with an idle-rotating lock cylinder according to claim 2, characterized in that: The spacer (440) and the number piece (450) are both provided in plurality, the number of the idle positioning number piece (430) is one, and the number piece (450) and the spacer (440) are spaced apart, while the idle positioning number piece (430) is located at the bottom.

4. The elastic padlock with an idle-rotating lock cylinder according to claim 3, characterized in that: The idle positioning number plate (430) and the number plate (450) are both provided with a groove (470), and the angle of the groove (470) on each number plate (450) corresponds to the key teeth.

5. The elastic padlock with an idle-rotating lock cylinder according to claim 1, characterized in that: A protective cover (500) made of aluminum alloy material is provided on the outside of the lock body (100).

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