Dustproof padlock

Abstract

The utility model discloses a dustproof padlock. The dustproof padlock comprises a lock body, an elastic piece and a dustproof assembly. Wherein the lock body is provided with a key hole, a mounting cavity and a through hole communicated with the mounting cavity; the elastic piece is mounted in the mounting cavity; the dustproof assembly comprises a connecting piece and a dustproof cover plate, one end of the connecting piece extends into the mounting cavity from the through hole and is connected with the elastic piece, the other end of the connecting piece is rotationally connected with the dustproof cover plate, and the connecting piece moves in the direction away from the dustproof cover plate under the driving of the elastic piece, so that when the dustproof cover plate is located on the side, close to the key hole, of the connecting piece, the dustproof cover plate is locked. When the dustproof cover plate is located on the side, away from the key hole, of the connecting piece, the dustproof cover plate is driven to close the key hole, or when the dustproof cover plate is located on the side, away from the key hole, of the connecting piece. Through the arrangement, the elastic piece is protected by the mounting cavity, so that the influence of the external environment on the elastic piece is reduced, the service life of the elastic piece is further prolonged, and meanwhile, a user can conveniently unlock or lock the dustproof padlock by using a key.

Description

Technical Field

[0001] The utility model relates to the technical field of locks, in particular to a dustproof padlock. Background Art

[0002] When padlocks are used outdoors for a long time, sand, dust, and dirt may enter the lock body and cause the padlock to fail to unlock normally, especially in areas with severe sandstorms. To solve the above problem, padlocks with dust-proof function are developed.

[0003] Existing dustproof padlocks usually have a dustproof cover at the bottom of the lock body to achieve the purpose of dustproof. In the prior art, the dustproof cover is generally an elastomer. It is set at the bottom of the lock body, and the material includes but is not limited to TPU, silicone, rubber, stainless steel, and is connected to the lock body by screws or pins. The dustproof cover can be flipped by the bendable and resilient properties of the elastomer or by setting the type of rotating shaft. In addition, the dustproof cover can be opened and closed by the deformable properties of the elastomer and the limit feature of the lock body.

[0004] However, the dust cover of the existing dustproof padlock is an elastomer exposed outside the lock body, which has high requirements on the weather resistance and corrosion resistance of the material, high material cost and easy failure, resulting in incomplete closure of the dust cover, which in turn leads to dustproof failure, so improvement is urgently needed. Utility Model Content

[0005] The main purpose of the utility model is to provide a dustproof padlock, which is intended to accommodate an elastic member in a mounting cavity, thereby preventing the elastic member from being affected by the external environment.

[0006] To achieve the above-mentioned purpose, the utility model provides a dustproof padlock, which includes a lock body, an elastic member and a dustproof assembly; wherein:

[0007] The lock body is provided with a key hole, a mounting cavity and a through hole communicating with the mounting cavity;

[0008] The elastic member is located in the installation cavity;

[0009] The dustproof assembly includes a connecting piece and a dustproof cover plate, one end of the connecting piece extends from the through hole into the mounting cavity and is connected to the elastic piece, the other end of the connecting piece is rotatably connected to the dustproof cover plate, and the connecting piece moves in a direction away from the dustproof cover plate under the drive of the elastic piece, so that when the dustproof cover plate is located on a side of the connecting piece close to the keyhole, the dustproof cover plate is driven to close the keyhole, or when the dustproof cover plate is located on a side of the connecting piece away from the keyhole, the dustproof cover plate is driven to open the keyhole.

[0010] In some embodiments of the utility model, the dustproof padlock also includes a limit block, the limit block is provided with a guide hole along the direction away from the dustproof cover, the limit block abuts against the cavity wall of the installation cavity close to the dustproof cover, the elastic member abuts against one end of the limit block away from the dustproof cover, and the connecting member passes through the guide hole and abuts against one end of the elastic member away from the limit block.

[0011] In some embodiments of the present invention, a guiding protrusion is convexly provided on the hole wall of the guiding hole, and a guiding recess that cooperates with the guiding protrusion is provided on the peripheral side of the connecting piece.

[0012] In some embodiments of the utility model, the mounting cavity is provided with a mounting hole radially penetrating the guide hole, and the dustproof padlock also includes a locking pin, which is installed in the mounting hole and partially extends into the mounting cavity to abut against the limit block.

[0013] In some embodiments of the utility model, the dustproof assembly also includes a screw nut, the connecting member passes through the guide hole and the elastic member is connected to the screw nut, so that the connecting member abuts against one end of the elastic member away from the limit block through the screw nut.

[0014] In some embodiments of the present invention, a groove is formed at one end of the screw nut away from the dust cover, and the groove is used to cooperate with a screwdriver head.

[0015] In some embodiments of the present utility model, a locking hole is provided through the cavity wall of the installation cavity toward the groove;

[0016] The dustproof padlock comprises a lock hook and a locking assembly, one end of the lock hook is movably mounted on the lock body, and one end of the lock hook extends into or out of the locking hole;

[0017] The locking assembly is installed on the lock body and exposed from the key hole. The locking assembly is used to limit the end of the lock hook extending into the locking hole.

[0018] In some embodiments of the utility model, the connecting member has a connecting portion and a rotating portion, one end of the connecting portion extends from the through hole into the mounting cavity and is connected to the elastic member, and the rotating portion is convexly provided on the circumferential side of the other end of the connecting portion, and the rotating portion is rotatably connected to the dust cover.

[0019] In some embodiments of the utility model, a mounting groove is recessed on the surface of the dust cover plate facing the keyhole, the rotating portion is located on a side of the connecting portion away from the keyhole, and the rotating portion is rotatably installed in the mounting groove.

[0020] In some embodiments of the present invention, the dustproof padlock further includes a wireless code chip, which is installed in the keyhole, and the wireless code chip is used to send a signal to the key.

[0021] The technical solution of the utility model adopts the method of installing the elastic member in the installation cavity. The dustproof assembly includes a connecting member and a dustproof cover plate. One end of the connecting member extends into the installation cavity from the through hole and is connected to the elastic member. The other end of the connecting member is rotatably connected to the dustproof cover plate. The connecting member moves in a direction away from the dustproof cover plate under the drive of the elastic member to drive the dustproof cover plate to close the keyhole. In this way, the elastic member is protected by the installation cavity, thereby reducing the influence of the external environment on the elastic member, thereby increasing the service life of the elastic member. At the same time, the dustproof cover plate is kept in the position of opening the keyhole under the drive of the elastic member, so that the user does not need to continuously apply force to the dustproof cover plate to maintain the dustproof cover plate to open the keyhole, so that the user can use the key to unlock or lock the dustproof padlock. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0023] Figure 1 This is a schematic structural diagram of an embodiment of the dustproof padlock of the utility model;

[0024] Figure 2 for Figure 1 A cross-sectional view of

[0025] Figure 3 for Figure 1 Cross-sectional view of the middle dust cover plate when closing the keyhole;

[0026] Figure 4 for Figure 3 Exploded view of the middle lock hook opening the locking hole;

[0027] Figure 5 for Figure 1 A partial structural cross-sectional view of

[0028] Figure 6 for Figure 2 Assembly drawing of the middle limit block and the connecting parts;

[0029] Figure 7 for Figure 2 Schematic diagram of the structure of the screw nut.

[0030] Description of Figure Numbers:

[0031]

[0032]

[0033] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0036] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0037] Please also read Figures 1 to 5 The utility model provides a dustproof padlock, which can be used to lock doors, boxes, and other objects, without specific limitation.

[0038] The dustproof padlock includes a lock body 100, an elastic member 200 and a dustproof assembly 300. The elastic member 200 and the dustproof assembly 300 are both installed on the lock body 100. The elastic member 200 is connected to the dustproof assembly 300. The lock body 100 can be made of many materials. The lock body 100 can be made of metal materials, the lock body 100 can also be made of harder plastic, and the lock body 100 can also be made of other materials, which are not specifically limited here. The lock body 100 has many shapes. The lock body 100 can be square, cylindrical, or other shapes, which are not specifically limited here.

[0039] The lock body 100 is provided with a keyhole 110, an installation cavity 120 and a through hole 130 connected to the installation cavity 120. The keyhole 110 is used for inserting a key. The installation cavity 120 has many shapes. The installation cavity 120 can be square, cylindrical, or other shapes, which are not specifically limited here.

[0040] The elastic member 200 is located in the installation cavity 120 . There are many types of the elastic member 200 . The elastic member 200 may be a compression spring or a tension spring, which is not specifically limited here.

[0041] The dustproof assembly 300 includes a connecting member 310 and a dustproof cover plate 320. One end of the connecting member 310 extends from the through hole 130 into the installation cavity 120 and is connected to the elastic member 200. The other end of the connecting member 310 is rotatably connected to the dustproof cover plate 320. The connecting member 310 moves in a direction away from the dustproof cover plate 320 under the drive of the elastic member 200, so as to drive the dustproof cover plate 320 to close the keyhole 110 when the dustproof cover plate 320 is located on the side of the connecting member 310 close to the keyhole 110, or to drive the dustproof cover plate 320 to open the keyhole 110 when the dustproof cover plate 320 is located on the side of the connecting member 310 away from the keyhole 110.

[0042] It should be noted that the angle between the dust cover 320 and the plane of the lock body 100 on which the keyhole 110 is set is α. The dust cover 320 is located on the side of the connecting member 310 close to the keyhole 110, which can be understood as 0°≤α<90°, and the dust cover 320 is located on the side of the connecting member 310 away from the keyhole 110, which can be understood as 90°<α≤180°.

[0043] The connecting piece 310 and the dust cover plate 320 can be made of many materials. The connecting piece 310 and the dust cover plate 320 can be made of metal materials, or made of harder plastic materials, or made of other materials, which are not specifically limited here. The surface of the dust cover plate 320 facing the keyhole 110 can be provided with an elastic seal, which abuts against the keyhole 110 through the elastic seal, thereby achieving a better dustproof effect.

[0044] It should be noted that there are many types of positional relationships between the elastic member 200 and the connecting member 310. For example, when the elastic member 200 is a tension spring, one end of the elastic member 200 is connected to the cavity wall of the installation cavity 120 away from the dust cover plate 320, and the other end of the elastic member 200 is connected to the side of the connecting member 310 away from the dust cover plate 320. The elastic member 200 pulls the connecting member 310 to move in a direction away from the dust cover plate 320 to drive the dust cover plate 320 to close the keyhole 110. For another example, when the elastic member 200 is a compression spring, one end of the elastic member 200 is connected to the cavity wall of the installation cavity 120 close to the dust cover plate 320, and the other end of the elastic member 200 is connected to the side of the connecting member 310 away from the dust cover plate 320. The elastic member 200 pushes the connecting member 310 to move in a direction away from the dust cover plate 320 to drive the dust cover plate 320 to close the keyhole 110. These are not listed one by one here.

[0045] The connecting member 310 moves in a direction away from the dust cover 320 under the action of the elastic member 200, and the dust cover 320 moves in a direction close to the lock body 100 under the action of the connecting member 310. Therefore, when the dust cover 320 rotates to the side of the connecting member 310 away from the keyhole 110, the dust cover 320 will be driven by the connecting member 310 and then be located in a position to keep the keyhole 110 open. In this way, the user does not need to continuously apply force to the dust cover 320 to keep the dust cover 320 open the keyhole 110, so that the user can use the key to unlock or lock the dustproof padlock.

[0046] When locking an object, a force is first applied to the dust cover 320 to rotate the dust cover 320 to the side of the connecting member 310 away from the keyhole 110, and then the force applied to the dust cover 320 is withdrawn, and the elastic member 200 drives the connecting member 310 to move, thereby driving the dust cover 320 to rotate to a position where the dust cover 320 is maintained to open the keyhole 110, and the key is inserted into the keyhole 110 and rotated to unlock the dustproof padlock, the dustproof padlock is hung on the object, and the key is rotated and pulled out to lock the object, and finally a force is applied to the dust cover 320 to rotate the dust cover 320 to the side of the connecting member 310 close to the keyhole 110, and the elastic member 200 drives the connecting member 310 to move, thereby driving the dust cover 320 to rotate to a position where the dust cover 320 is maintained to close the keyhole 110.

[0047] When unlocking the object, a force is first applied to the dust cover 320 to rotate the dust cover 320 to the side of the connector 310 away from the keyhole 110, and then the force applied to the dust cover 320 is removed. The elastic member 200 drives the connector 310 to move, thereby driving the dust cover 320 to rotate to a position where the dust cover 320 is maintained to open the keyhole 110. The key is then inserted into the keyhole 110 and rotated to unlock the dust padlock, and finally the dust padlock is removed from the object.

[0048] The technical solution of the utility model adopts the method of installing the elastic member 200 in the installation cavity 120, and the dustproof component 300 includes a connecting member 310 and a dustproof cover plate 320. One end of the connecting member 310 extends into the installation cavity 120 from the through hole 130 and is connected to the elastic member 200. The other end of the connecting member 310 is rotatably connected to the dustproof cover plate 320. The connecting member 310 moves in a direction away from the dustproof cover plate 320 under the drive of the elastic member 200 to drive the dustproof cover plate 320 to close the keyhole 110. In this way, the elastic member 200 is protected by the installation cavity 120, thereby reducing the impact of the external environment on the elastic member 200, thereby increasing the service life of the elastic member 200. At the same time, the dust cover 320 is driven by the elastic member 200 to maintain the position of opening the keyhole 110, so that the user does not need to continuously apply force to the dust cover 320 to maintain the dust cover 320 to open the keyhole 110, and the user can use the key to unlock or lock the dustproof padlock.

[0049] Please also read Figures 1 to 6In some embodiments of the utility model, the dustproof padlock further comprises a limit block 400, the limit block 400 is provided with a guide hole 410 in a direction away from the dustproof cover plate 320, the limit block 400 abuts against the cavity wall of the installation cavity 120 close to the dustproof cover plate 320, the elastic member 200 abuts against one end of the limit block 400 away from the dustproof cover plate 320, and the connecting member 310 passes through the guide hole 410 and abuts against one end of the elastic member 200 away from the limit block 400. In this way, the guide hole 410 cooperates with the connecting member 310, thereby preventing the connecting member 310 from moving radially along the guide hole 410, thereby ensuring that the moving direction of the connecting member 310 is accurate, so that the dustproof cover plate 320 can accurately close the keyhole 110.

[0050] For further information, see Figure 6 The guide hole 410 has a guide protrusion 411 on its wall, and the connecting member 310 has a guide recess 311 on its circumference that cooperates with the guide protrusion 411. In this way, the guide protrusion 411 cooperates with the guide recess 311, thereby preventing the connecting member 310 from rotating along the axial direction of the guide hole 410 and driving the dust cover 320 to rotate, so that the dust cover 320 cannot accurately close the key hole 110.

[0051] Furthermore, the installation cavity 120 is provided with an installation hole 121 in the radial direction of the guide hole 410, and the dustproof padlock further includes a fixing pin 500, which is installed in the installation hole 121 and partially extends into the installation cavity 120 to abut against the limit block 400. In this arrangement, the fixing pin 500 abuts against the limit block 400, so that the limit block 400 cannot rotate along the circumferential direction of the guide hole 410, thereby preventing the limit block 400 from rotating along the axial direction of the guide hole 410 to drive the dustproof cover plate 320 to rotate, resulting in the dustproof cover plate 320 being unable to accurately close the keyhole 110.

[0052] It should be noted that the surface of the limit block 400 facing the mounting hole 121 is provided with a plane 420, and the plane 420 abuts against the fixing pin 500, so that the limit block 400 cannot rotate along the axial direction of the guide hole 410. The plane 420 can be formed by a concave arrangement on the circumference of the limit block 400, and the plane 420 can also be the side surface of the limit block 400, which is not specifically limited here.

[0053] There are many ways to abut the end of the connecting member 310 away from the dust cover 320 with the elastic member 200. For example, a limiting convex portion is convexly provided on the outer peripheral wall of the end of the connecting member 310 away from the dust cover 320, and the limiting convex portion abuts against the side of the elastic member 200 away from the dust cover 320, so that the elastic member 200 applies an elastic force to the limiting convex portion to drive the connecting member 310 to move. For another example, a nut 330 is provided at the end of the connecting member 310 away from the dust cover 320, and the nut 330 abuts against the side of the elastic member 200 away from the dust cover 320, so that the elastic member 200 applies an elastic force to the nut 330 to drive the connecting member 310 to move. No specific limitation is made here.

[0054] Preferably, please also refer to Figures 1 to 7 The dustproof assembly 300 further includes a screw cap 330, and the connector 310 passes through the guide hole 410 and the elastic member 200 and is connected to the screw cap 330, so that the connector 310 abuts against the end of the elastic member 200 away from the stop block 400 through the screw cap 330. In this way, the connector 310 can first pass through the through hole 130, the guide hole 410 and the elastic member 200 in sequence, and then the screw cap 330 can be installed on the end of the connector 310 away from the dustproof cover plate 320, so as to facilitate the installation of the connector 310.

[0055] For details, please refer to Figures 1 to 7 The end of the screw cap 330 away from the dust cover 320 is concavely provided with a groove 331, and the groove 331 is used to cooperate with a screwdriver head. In this way, the screw cap 330 is rotated by the screwdriver head cooperating with the groove 331 to install the screw cap 330 on the connecting member 310 or remove it from the connecting member 310, so that the dustproof padlock can be easily maintained. The groove 331 can be a straight groove or a cross groove, which is not specifically limited here.

[0056] For further information, see Figure 5 A locking hole 122 is provided through the cavity wall of the installation cavity 120 facing the groove 331; the dustproof padlock includes a lock hook 600 and a locking assembly 700, one end of the lock hook 600 is movably installed on the lock body 100, and one end of the lock hook 600 extends into or out of the locking hole 122; the locking assembly 700 is installed on the lock body 100 and exposed from the keyhole 110, and the locking assembly 700 is used to limit the end of the lock hook 600 extending into the locking hole 122.

[0057] In this arrangement, the locking assembly 700 is controlled to limit or release the limit on one end of the lock hook 600 extending into the locking hole 122, so as to realize the dustproof padlock locking or unlocking the object. At the same time, the elastic part 200 or the connecting part 310 in the installation cavity 120 can be assembled and maintained through the locking hole 122, thereby facilitating the assembly and maintenance of the dustproof padlock.

[0058] In some embodiments of the present invention, please refer to Figure 6 The connecting member 310 has a connecting portion 312 and a rotating portion 313. One end of the connecting portion 312 extends from the through hole 130 into the mounting cavity 120 and is connected to the elastic member 200. The other end of the connecting portion 312 is convexly provided with a rotating portion 313, and the rotating portion 313 is rotatably connected to the dust cover plate 320.

[0059] With such arrangement, when the dust cover plate 320 is assembled or the dust cover body is removed from the rotating part 313 for maintenance, the rotating part 313 will abut against the lock body 100, thereby preventing the connecting member 310 from being driven by the elastic member 200 to fully extend into the installation cavity 120, thereby facilitating the assembly and maintenance of the dustproof padlock.

[0060] For further information, please also refer to Figures 1 to 6 The surface of the dust cover 320 facing the key hole 110 is concavely provided with a mounting groove 321, and the rotating portion 313 is located on the side of the connecting portion 312 away from the key hole 110, and the rotating portion 313 is rotatably mounted in the mounting groove 321. In this way, by installing the rotating portion 313 in the mounting groove 321, the mounting groove 321 can cover the through hole 130, thereby better preventing the external environment from affecting the elastic member 200 in the mounting cavity 120 through the through hole 130.

[0061] Please also read Figures 1 to 6 In some embodiments of the present invention, the dustproof padlock further includes a wireless chip 800, which is installed in the keyhole 110 and is used to send a signal to the key. In this way, the wireless chip 800 cooperates with the key, so that only the designated key can open the corresponding dustproof padlock, thereby improving the safety performance of the dustproof padlock.

[0062] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A dustproof padlock, characterized in that: The dustproof padlock comprises a lock body, an elastic member and a dustproof assembly; wherein, The lock body is provided with a key hole, a mounting cavity and a through hole communicating with the mounting cavity; The elastic member is located in the installation cavity; The dustproof assembly includes a connecting piece and a dustproof cover plate, one end of the connecting piece extends from the through hole into the mounting cavity and is connected to the elastic piece, the other end of the connecting piece is rotatably connected to the dustproof cover plate, and the connecting piece moves in a direction away from the dustproof cover plate under the drive of the elastic piece, so that when the dustproof cover plate is located on a side of the connecting piece close to the keyhole, the dustproof cover plate is driven to close the keyhole, or when the dustproof cover plate is located on a side of the connecting piece away from the keyhole, the dustproof cover plate is driven to open the keyhole.

2. The dustproof padlock according to claim 1, characterized in that: The dustproof padlock also includes a limit block, which is provided with a guide hole along the direction away from the dustproof cover, the limit block abuts against the cavity wall of the installation cavity close to the dustproof cover, the elastic member abuts against one end of the limit block away from the dustproof cover, and the connecting member passes through the guide hole and abuts against one end of the elastic member away from the limit block.

3. The dustproof padlock according to claim 2, characterized in that: A guide convex portion is convexly arranged on the hole wall of the guide hole, and a guide concave portion cooperating with the guide convex portion is arranged on the peripheral side of the connecting piece.

4. The dustproof padlock according to claim 3, characterized in that: The installation cavity is provided with an installation hole radially penetrating the guide hole. The dustproof padlock further comprises a fixing pin, which is installed in the installation hole and partially extends into the installation cavity to abut against the limit block.

5. The dustproof padlock according to claim 2, characterized in that: The dustproof assembly also includes a screw nut, the connecting member passes through the guide hole, and the elastic member is connected to the screw nut, so that the connecting member abuts against an end of the elastic member away from the limiting block through the screw nut.

6. The dustproof padlock according to claim 5, characterized in that: A groove is concavely arranged at one end of the screw nut away from the dustproof cover plate, and the groove is used to cooperate with a screwdriver head.

7. The dustproof padlock according to claim 6, characterized in that: A locking hole is provided through the cavity wall of the installation cavity toward the groove; The dustproof padlock comprises a lock hook and a locking assembly, one end of the lock hook is movably mounted on the lock body, and one end of the lock hook extends into or out of the locking hole; The locking assembly is installed on the lock body and exposed from the key hole. The locking assembly is used to limit the end of the lock hook extending into the locking hole.

8. The dustproof padlock according to claim 1, characterized in that: The connecting member comprises a connecting portion and a rotating portion, one end of the connecting portion extends from the through hole into the mounting cavity and is connected to the elastic member, and the rotating portion is convexly provided on the peripheral side of the other end of the connecting portion, and the rotating portion is rotatably connected to the dust cover.

9. The dustproof padlock according to claim 8, characterized in that: A mounting groove is concavely formed on the surface of the dustproof cover plate facing the key hole. The rotating part is located at a side of the connecting part away from the key hole. The rotating part is rotatably mounted in the mounting groove.

10. The dustproof padlock according to claim 1, characterized in that: The dustproof padlock further comprises a wireless code chip, which is installed in the key hole and is used for sending a signal to the key.

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