Anti-prying padlock

Abstract

The utility model discloses an anti-prying padlock which comprises a lock body, a lock hole is formed in the bottom of the lock body, a moving cavity is formed in the lock body, an anti-prying plate is installed in the moving cavity in a sliding mode, a through hole is formed in the anti-prying plate, an anti-prying hole is formed in the side wall of the lock body, a worm is installed in the anti-prying hole in a rotating mode, and a through hole is formed in the through hole. A worm wheel is meshed with one side of the worm, a connecting rod is fixedly connected to the lower end of the worm wheel, a gear is fixedly installed at the lower end of the connecting rod, a toothed plate is meshed with one side of the gear, and the toothed plate is fixedly connected to one side of the anti-prying plate. According to the anti-theft padlock, the anti-prying plate is moved to block the lock hole, the blade lock set is sealed in the lock body, the anti-prying plate protects the blade lock set, other people cannot directly damage the blade lock set through a lock prying tool, and therefore the blade lock set is prevented from being damaged, and the anti-theft function of the padlock is guaranteed.

Description

Technical Field

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

[0002] Padlocks are the oldest and largest family in the world of locks. Most other locks are derived from padlocks. The lock body of a padlock is equipped with a ring-shaped or "I"-shaped metal stem, namely the "lock beam", which allows the padlock to be directly connected to the lock body through the lock beam to form a closed lock. Padlocks are mainly used for anti-theft and security.

[0003] In order to further understand the anti-pry padlock in the prior art, after searching, the Chinese patent with the announcement number: CN214996829U discloses a anti-pry padlock with a relatively strong lock core structure stability, including a padlock body, a lock beam is arranged on the top of the padlock body; a vertical mounting groove is arranged in the padlock body; a blade assembly is arranged at the bottom of the mounting groove, and a lock core sleeve is arranged outside the blade assembly; a torque and two steel balls engaged with the torque are coupled to the top of the lock core sleeve; a lock core sleeve retaining spring and a torque retaining spring are respectively arranged at the top positions of the lock core sleeve and the torque in the mounting groove.

[0004] After exploration and analysis, it was found that the patent has the following shortcomings in actual use: although the patent has an anti-pry function by setting the notch of the installation slot at the top of the padlock body so that the distance between the cover on the notch and the lock beam is small, in this patent, a thief can directly destroy the lock core with a prying tool through the keyhole under the padlock body, causing the padlock to lose its anti-theft function. Utility Model Content

[0005] Aiming at the technical problem that the existing lock picking tools can enter and damage the lock core through the key hole under the padlock, so that the padlock loses its anti-theft function, the utility model provides an anti-pry padlock.

[0006] The technical solution adopted by the utility model is: it includes a lock body, a lock hole is provided at the bottom of the lock body, a movable cavity is provided inside the lock body, an anti-pry plate is slidably installed in the movable cavity, a through hole is provided on the anti-pry plate, an anti-pry hole is provided on the side wall of the lock body, a worm is rotatably installed in the anti-pry hole, a worm wheel is meshed with one side of the worm, a connecting rod is fixedly connected to the lower end of the worm wheel, a gear is fixedly installed at the lower end of the connecting rod, a tooth plate is meshed with one side of the gear, and the tooth plate is fixedly connected to one side of the anti-pry plate.

[0007] Furthermore, the anti-pry hole is provided with a limiting groove, a limiting plate is rotatably installed in the limiting groove, the limiting plate is fixedly connected to one side of the worm, and a protrusion is fixedly installed on a side of the limiting plate away from the worm.

[0008] By adopting the above technical solution, the stability of the worm gear during use is improved.

[0009] Furthermore, a rotating rod is slidably installed in the anti-pry hole, and a clamping hole is opened at one end of the rotating rod, and the clamping hole is adapted to the protruding block.

[0010] By adopting the above technical solution, it is difficult to rotate the rotating rod with general tools, thereby improving the anti-pry function of the padlock.

[0011] Furthermore, a slide groove is provided on one side of the movable cavity, a sliding block is slidably installed in the slide groove, and the sliding block is fixedly connected to the side surface of the anti-pry plate.

[0012] By adopting the above technical solution, the stability of the anti-pry plate moving in the moving cavity is improved.

[0013] Furthermore, one end of the rotating rod away from the clamping hole is fixedly connected to a rotating plate, and a through hole is formed on the rotating plate.

[0014] By adopting the above technical solution, the rotating rod can be easily rotated and the loss of the rotating rod can be avoided.

[0015] Furthermore, an installation cavity is provided inside the lock body, a lock hook is slidably installed in the installation cavity, a blade lock group is arranged inside the lock body, and a steel ball is movably arranged in the lock body.

[0016] By adopting the above technical solution, the lock hook is buckled with the lock body to realize the anti-theft function of the padlock.

[0017] The beneficial effects of the utility model are as follows: after the padlock is locked, by inserting the rotating rod into the anti-pry hole, the rotating rod cooperates with the worm, the worm wheel, the connecting rod, the gear and the toothed plate to drive the anti-pry plate to move in the moving cavity, the anti-pry plate blocks the lock hole, and the blade lock group is sealed inside the lock body. The anti-pry plate protects the blade lock group, and other people cannot use the lock picking tool to directly damage the blade lock group, thereby avoiding the blade lock group from being damaged, and ensuring the anti-theft function of the padlock. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the lock body in the utility model;

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the anti-pry hole and the worm in the utility model;

[0021] Figure 4 It is a schematic diagram of the structure of the anti-pry plate and the tooth plate in the utility model;

[0022] Figure 5It is a structural schematic diagram of the transfer rod of the utility model.

[0023] The numbers in the figure are: 1. lock body; 2. lock hook; 3. anti-pry hole; 4. rotating rod; 5. installation cavity; 6. moving cavity; 7. anti-pry plate; 8. lock hole; 9. through hole; 10. blade lock assembly; 11. steel ball; 12. tooth plate; 13. gear; 14. connecting rod; 15. worm gear; 16. worm; 17. limit plate; 18. raised block; 19. slider; 20. slide groove; 21. limit groove; 22. card hole; 23. rotating piece; 24. through hole. DETAILED DESCRIPTION

[0024] In the description of the present invention, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] The following is combined with Figure 1-5 The utility model is further described.

[0027] In order to solve the problems existing in the background technology, the present application proposes the following technical solution: it includes a lock body 1, a lock hole 8 is opened at the bottom of the lock body 1, a movable cavity 6 is arranged inside the lock body 1, an anti-pry plate 7 is slidably installed in the movable cavity 6, a through hole 9 is opened on the anti-pry plate 7, an anti-pry hole 3 is opened on the side wall of the lock body 1, a worm 16 is rotatably installed in the anti-pry hole 3, a worm wheel 15 is meshed with one side of the worm 16, a connecting rod 14 is fixedly connected to the lower end of the worm wheel 15, a gear 13 is fixedly installed at the lower end of the connecting rod 14, a tooth plate 12 is meshed with one side of the gear 13, and the tooth plate 12 is fixedly connected to one side of the anti-pry plate 7.

[0028] After the padlock is used, a tool is used to rotate the worm 16, which drives the worm wheel 15 to rotate. The worm wheel 15 drives the gear 13 to rotate through the connecting rod 14. The gear 13 pushes the anti-pry plate 7 to move in the movable cavity 6, so that the anti-pry plate 7 blocks the lock hole 8 and seals the blade lock assembly 10 inside the lock body 1. Since the anti-pry plate 7 protects the blade lock assembly 10, the thief cannot use the lock picking tool to directly destroy the blade lock assembly 10, thereby realizing the anti-pry function of the padlock and improving the safety of the padlock when in use.

[0029] It is further explained that the anti-pry hole 3 is provided with a limiting groove 21, in which a limiting plate 17 is rotatably installed. The limiting plate 17 is fixedly connected to one side of the worm 16, and a protrusion 18 is fixedly installed on one side of the limiting plate 17 away from the worm 16.

[0030] The limiting groove 21 guides and limits the limiting plate 17 , and the limiting groove 21 cooperates with the limiting plate 17 to limit the worm 16 , so that the worm 16 can stably rotate in the anti-pry hole 3 , thereby improving the practicality of the padlock.

[0031] It is further explained that a rotating rod 4 is slidably installed in the anti-pry hole 3 , and a clamping hole 22 is opened at one end of the rotating rod 4 , and the clamping hole 22 is adapted to the protruding block 18 .

[0032] After the padlock is locked, the rotating rod 4 needs to be removed from the anti-pry hole 3 and put away. When the padlock needs to be unlocked, the rotating rod 4 is inserted into the anti-pry hole 3 so that the protruding block 18 is engaged with the locking hole 22. The worm 16 is rotated by rotating the rotating rod 4. The rotation of the worm 16 causes the anti-pry plate 7 to move in the moving cavity 6. After the through hole 9 on the anti-pry plate 7 overlaps with the lock hole 8 at the bottom of the lock body 1, the key can pass through the lock hole 8 and the through hole 9 to act on the blade lock assembly 10 to unlock the padlock. To move the anti-pry plate 7, the rotating rod 4 needs to be used to drive the worm 16 to rotate. The setting of the protruding block 18 and the sliding block 19 makes it difficult for a thief to rotate the worm 16 to move the anti-pry plate 7 with a lock picking tool, thereby improving the anti-pry effect of the padlock.

[0033] It is further explained that a slide groove 20 is opened on one side of the movable cavity 6 , a slider 19 is slidably installed in the slide groove 20 , and the slider 19 is fixedly connected to the side surface of the anti-pry plate 7 .

[0034] The slider 19 cooperates with the slide groove 20 to guide and limit the anti-pry plate 7, thereby improving the stability of the anti-pry plate 7 when moving in the moving cavity 6, thereby improving the stability of the padlock in use.

[0035] It is further explained that one end of the rotating rod 4 away from the clamping hole 22 is fixedly connected to a rotating piece 23 , and a through hole 24 is formed on the rotating piece 23 .

[0036] The setting of the rotating piece 23 makes it convenient to rotate the rotating rod 4 by hand, thereby improving the convenience of using the padlock; the setting of the perforation 24 allows the user to thread the rotating rod 4 on the key chain through the perforation 24, which can effectively avoid the loss of the rotating rod 4, thereby avoiding the situation where the padlock cannot be opened due to the loss of the rotating rod 4, thereby improving the practicality of the padlock.

[0037] It is further explained that a mounting cavity 5 is provided inside the lock body 1 , a lock hook 2 is slidably installed in the mounting cavity 5 , a blade lock assembly 10 is provided inside the lock body 1 , and a steel ball 11 is movably provided in the lock body 1 .

[0038] The padlock body is composed of a lock body 1, a lock hook 2 and a blade lock assembly 10. After the lock hook 2 is inserted into the installation cavity 5, the steel ball 11 is engaged with the notch on the lock hook 2. The steel ball 11 restricts the lock hook 2 so that the lock hook 2 cannot be removed from the installation cavity 5, thereby achieving the locking effect of the padlock. The key is inserted into the blade lock assembly 10 through the lock hole 8 and the through hole 9. The blade lock assembly 10 is rotated to push the steel ball 11 to move to achieve the opening and closing of the padlock. The blade lock assembly 10 and the steel ball 11 are existing mature technologies and will not be described in detail in this application.

[0039] Specific reference is made to the following operations: after the padlock is locked, the rotating rod 4 is inserted into the anti-pry hole 3 so that the protruding block 18 is engaged with the locking hole 22, and the rotating rod 4 is rotated to rotate the worm 16, and the worm 16 drives the worm wheel 15 to rotate, and the worm wheel 15 drives the gear 13 to rotate through the connecting rod 14, and the gear 13 pushes the anti-pry plate 7 to move in the moving cavity 6, so that the anti-pry plate 7 blocks the lock hole 8 and seals the blade lock group 10 inside the lock body 1, and then the rotating rod 4 is removed from the anti-pry hole 3 and taken away; when it is necessary to unlock, the rotating rod 4 is inserted into the anti-pry hole 3, and the rotating rod 4 is rotated to move the anti-pry plate 7. After the through hole 9 on the anti-pry plate 7 overlaps with the lock hole 8 at the bottom of the lock body 1, the key can pass through the lock hole 8 and the through hole 9 to act on the blade lock group 10 to unlock.

[0040] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0041] Although the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pry-resistant padlock, characterized in that: The invention comprises a lock body (1), a lock hole (8) is provided at the bottom of the lock body (1), a movable cavity (6) is provided inside the lock body (1), an anti-pry plate (7) is slidably installed in the movable cavity (6), a through hole (9) is provided on the anti-pry plate (7), an anti-pry hole (3) is provided on the side wall of the lock body (1), a worm (16) is rotatably installed in the anti-pry hole (3), a worm wheel (15) is meshed on one side of the worm (16), a connecting rod (14) is fixedly connected to the lower end of the worm wheel (15), a gear (13) is fixedly installed on the lower end of the connecting rod (14), a tooth plate (12) is meshed on one side of the gear (13), and the tooth plate (12) is fixedly connected to one side of the anti-pry plate (7).

2. A tamper-resistant padlock according to claim 1, characterized in that: The anti-pry hole (3) is provided with a limiting groove (21), a limiting plate (17) is rotatably installed in the limiting groove (21), the limiting plate (17) is fixedly connected to one side of the worm (16), and a protruding block (18) is fixedly installed on the side of the limiting plate (17) away from the worm (16).

3. A tamper-resistant padlock according to claim 2, characterized in that: A rotating rod (4) is slidably installed in the anti-pry hole (3), and a clamping hole (22) is opened at one end of the rotating rod (4), and the clamping hole (22) is matched with the protruding block (18).

4. The anti-pry padlock according to claim 3, characterized in that: A slide groove (20) is provided on one side of the movable cavity (6), a slider (19) is slidably installed in the slide groove (20), and the slider (19) is fixedly connected to the side of the anti-pry plate (7).

5. The anti-pry padlock according to claim 4, characterized in that: One end of the rotating rod (4) away from the clamping hole (22) is fixedly connected to a rotating plate (23), and a through hole (24) is formed on the rotating plate (23).

6. The anti-pry padlock according to claim 5, characterized in that: The lock body (1) is provided with an installation cavity (5) inside, a lock hook (2) is slidably installed in the installation cavity (5), a blade lock assembly (10) is arranged inside the lock body (1), and a steel ball (11) is movably arranged in the lock body (1).

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