Annular anti-theft lock with invisible connector
By designing a concealed joint ring-type anti-theft lock with a cross-rectangular groove and a lock cylinder unlocking port, the problem of easy damage and exposure of the lock cylinder is solved, realizing the concealment and convenient replacement of the lock cylinder, improving security and maintenance convenience.
Patent Information
- Application Number
- CN202422060397.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-24
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-08-24
AI Technical Summary
Existing ring-type anti-theft lock cylinders are easily damaged and cannot be replaced, and the exposed unlocking hole is easily discovered by thieves, resulting in insufficient security.
A concealed connector ring-type anti-theft lock was designed. By setting intersecting rectangular slots with the lock cylinder unlocking port, limit ring and drive assembly, it ensures that the key cannot be directly inserted into the lock cylinder. Combined with the reset assembly and drive assembly, the lock cylinder can be hidden and replaced.
It effectively prevents thieves from unlocking the lock, and the lock cylinder is replaceable, improving security and ease of maintenance.
Smart Images
Figure CN223767316U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of ring-type anti-theft lock technology, and in particular relates to a ring-type anti-theft lock with an invisible joint. Background Technology
[0002] Ring-type anti-theft locks are widely used in scenarios requiring high security, such as theft prevention of vehicles like cars, motorcycles, and bicycles, as well as places like warehouses and shops where valuables need to be protected. Due to their unique design and high security, ring-type anti-theft locks have become the preferred anti-theft device for many people.
[0003] Existing ring-type anti-theft locks have several drawbacks, such as the possibility of damage to the lock cylinder during use. Most ring-type lock cylinders cannot be replaced, necessitating the replacement of the entire lock. Furthermore, the unlocking hole is directly exposed, making it easy for thieves to spot and pry open the lock with tools. Therefore, we propose a concealed joint ring-type anti-theft lock. Utility Model Content
[0004] The purpose of this utility model is to provide a concealed joint ring-type anti-theft lock to solve the problems mentioned in the background art.
[0005] In view of this, the present invention provides a concealed joint ring-type anti-theft lock, comprising:
[0006] The lock body has a sliding groove and a U-shaped hook is rotatably installed on the lock body. The sliding groove contains a lock cylinder, and a screw is threaded onto the lock cylinder. A protective cover is inserted into the sliding groove and installed at the top of the lock cylinder. A limit strip is slidably installed in the sliding groove, and one side of the limit strip extends into the protective cover, and the limit strip and the protective cover are inserted into each other.
[0007] A threaded rod is rotatably mounted in a sliding groove and located on one side of a limiting strip. One end of the threaded rod passes through the limiting strip, and the threaded rod is threadedly connected to the limiting strip.
[0008] A drive assembly, located within the lock body, is used to drive the threaded rod to rotate;
[0009] The power chamber is located within the lock body. A toothed ring is rotatably mounted within the power chamber. A limit ring is slidably mounted within the power chamber and on one side of the toothed ring. A disc is fixedly mounted within the limit ring, and the limit ring and the toothed ring are interlocked. A rectangular groove is formed within the disc.
[0010] A reset assembly, located within the lock body, is used to reset the rotation of the toothed ring.
[0011] In this technical solution, when it is necessary to unlock the lock body, the key is first inserted into the rectangular slot, and then the disc is pressed. The disc drives the limiting ring to slide towards the toothed ring. During this time, the user continuously tries to turn the key. When the limiting ring is just inserted into the toothed ring, the key can drive the disc, the limiting ring, and the toothed ring to rotate in the forward direction. Through the set reset component, when the disc rotates 90° in the forward direction, the key can be inserted into the unlocking port of the lock cylinder to unlock. After unlocking is completed, through the set reset component, the toothed ring can be driven to rotate in the reverse direction and return to its original position. The toothed ring drives the limiting ring and the disc to rotate in the opposite direction and return to their original positions. Finally, under the action of gravity, the limiting ring will slide downward and disengage from the toothed ring.
[0012] When a thief tries to unlock the lock, the key is first inserted into the rectangular slot. However, the rectangular slot and the unlocking port of the lock cylinder are intersected, making it impossible for the thief to insert the key into the unlocking port of the lock cylinder. At the same time, the limiting ring cannot rotate when it is not inserted into the toothed ring and can only slide in the power chamber. When the thief presses the disc, it is very easy to press the disc and pass through the toothed ring, so that the thief cannot rotate the disc and cannot unlock the U-shaped hook. This makes the lock cylinder hidden and unable to be unlocked.
[0013] When the lock cylinder needs to be replaced, first unlock the U-hook, then rotate the U-hook. Through the set drive component, the second bevel gear will rotate, which in turn drives the threaded rod to rotate. Under the action of the thread, the threaded rod drives the limit strip to slide away from the protective cover. After the limit strip is completely disengaged from the protective cover, the lock body is placed upside down so that the protective cover is facing down. Under the action of gravity, the protective cover will slide out of the sliding groove. Finally, the screws are removed with tools, and the lock cylinder is taken out and replaced. The above operation can be reversed to install the new lock cylinder, which is convenient for personnel to replace the lock cylinder. However, the lock cylinder cannot be replaced when it is not unlocked.
[0014] In the above technical solution, the driving component further includes:
[0015] A second bevel gear is rotatably mounted in a sliding groove and located at one end of a threaded rod; the second bevel gear is fixedly connected to the threaded rod.
[0016] A bevel gear one is meshed and installed on one side of a bevel gear two, and a rotating column is fixedly installed at one end of the bevel gear one. One end of the rotating column passes through the sliding groove and extends to one end of the U-shaped hook. Both the bevel gear one and the rotating column are rotatably connected to the sliding groove. A hexagonal groove is opened at one end of the rotating column.
[0017] In this technical solution, when the lock cylinder needs to be replaced, firstly, the U-shaped hook is unlocked, then the U-shaped hook is rotated to expose the rotating column. Next, a hex wrench is used to rotate the rotating column through the hexagonal groove. The rotating column drives the first bevel gear to rotate, which in turn drives the second bevel gear meshing with it to rotate. The second bevel gear drives the threaded rod to rotate. Under the action of the thread, the threaded rod drives the limiting strip to slide away from the protective cover. After the limiting strip is completely disengaged from the protective cover, the lock body is placed upside down so that the protective cover is facing down. Under the action of gravity, the protective cover will slide out of the sliding groove. Finally, the screws are removed with tools, and the lock cylinder is taken out and replaced. The above operations can be reversed to install a new lock cylinder, which is convenient for personnel to replace the lock cylinder. However, the lock cylinder cannot be replaced when it is not unlocked.
[0018] In the above technical solution, the reset component further includes:
[0019] The first gear is rotatably mounted inside the power cavity and located on one side of the gear ring. The first gear meshes with the gear ring. A fixing post is fixedly mounted at one end of the first gear and is rotatably connected to the power cavity. A torsion spring is sleeved on the fixing post, and the two ends of the torsion spring are fixed to the first gear and the inner wall of the power cavity, respectively.
[0020] In this technical solution, when it is necessary to unlock the lock body, first insert the key into the rectangular slot, then press the disc. The disc drives the limiting ring to slide towards the toothed ring. During this time, the user continuously tries to turn the key. When the limiting ring is just inserted into the toothed ring, the key can drive the disc, the limiting ring, and the toothed ring to rotate in the forward direction. The toothed ring drives the first gear meshing with it to rotate in the forward direction. At the same time, the torsion spring is twisted. After the disc rotates 90° in the forward direction, the key can be inserted into the unlocking port of the lock cylinder to unlock. After unlocking, under the action of the torsion force of the torsion spring, the fixed post and the first gear will rotate in the opposite direction and return to their original positions. The first gear drives the toothed ring meshing with it to rotate in the opposite direction and return to its original position. The toothed ring drives the limiting ring and the disc to rotate in the opposite direction and return to their original positions. Finally, under the action of gravity, the limiting ring will slide downward and disengage from the toothed ring.
[0021] When a thief tries to unlock the lock, the key is first inserted into the rectangular slot. However, the rectangular slot and the unlocking port of the lock cylinder are intersected, preventing the thief from inserting the key into the unlocking port of the lock cylinder. At the same time, the limiting ring cannot rotate when it is not inserted into the toothed ring and can only slide in the power chamber. When the thief presses the disc, it is very easy to press the disc and pass through the toothed ring, making it impossible for the thief to rotate the disc and unlock the U-shaped hook. This causes the lock cylinder to be hidden and unable to be unlocked.
[0022] In the above technical solution, the size of the rectangular groove is larger than the size of the lock cylinder unlocking port.
[0023] In this technical solution, it is ensured that one end of the key can be inserted into the rectangular slot.
[0024] In the above technical solution, one end of the rotating column is in close contact with the U-shaped hook.
[0025] In this technical solution, it is ensured that the rotating column will not affect the rotation and unlocking of the U-shaped hook.
[0026] Furthermore, in the above technical solution, the limiting ring and the disk are integrally formed.
[0027] In this technical solution, the stability of the limiting ring and the disk during use is ensured.
[0028] In the above technical solution, the rectangular groove is further arranged to intersect with the unlocking port of the lock cylinder.
[0029] In this technical solution, it is ensured that after the key is inserted into the rectangular slot, the key cannot be directly inserted into the lock cylinder.
[0030] The beneficial effects of this utility model are:
[0031] 1. In this concealed connector ring-type anti-theft lock, when a thief tries to unlock the lock body, the key is first inserted into the rectangular slot. However, the rectangular slot and the unlocking port of the lock cylinder are intersected, preventing the thief from inserting the key into the unlocking port of the lock cylinder. At the same time, the limiting ring cannot rotate when it is not inserted into the toothed ring and can only slide in the power cavity. When the thief presses the disc, it is very easy to press the disc and pass through the toothed ring, making it impossible for the thief to rotate the disc and unlock the U-shaped hook. This allows the lock cylinder to be hidden and cannot be unlocked.
[0032] 2. This concealed joint ring-type anti-theft lock, through its set drive component, can drive the second bevel gear to rotate. The second bevel gear drives the threaded rod to rotate. Under the action of the thread, the threaded rod drives the limit strip to slide away from the protective cover. When the limit strip is completely disengaged from the protective cover, the lock body is placed upside down so that the protective cover is facing down. Under the action of gravity, the protective cover will slide out of the sliding groove. Finally, the screws are removed with tools, and the lock cylinder is taken out and replaced. The above operation can be reversed to install a new lock cylinder, which is convenient for personnel to replace the lock cylinder. However, the lock cylinder cannot be replaced when the lock is not unlocked. Attached Figure Description
[0033] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0034] Figure 2 This is a schematic diagram of the partial explosion structure of this utility model;
[0035] Figure 3 This is a schematic diagram of the lock cylinder area structure of this utility model;
[0036] Figure 4 This is one of the schematic diagrams of the cross-sectional structure of the lock body of this utility model;
[0037] Figure 5 This is the second schematic diagram of the cross-sectional structure of the lock body of this utility model;
[0038] Figure 6 This is the third schematic diagram of the cross-sectional structure of the lock body of this utility model;
[0039] Figure 7 This is a schematic diagram of the limiting ring area structure of this utility model;
[0040] Figure 8 This is the fourth schematic diagram of the cross-sectional structure of the lock body of this utility model;
[0041] Figure 9 This is the utility model Figure 8 Enlarged structural diagram at point A;
[0042] Figure 10 This is a schematic diagram of the rotating column area structure of this utility model.
[0043] The markings in the diagram are as follows:
[0044] 1. Lock body; 2. Sliding groove; 3. Lock cylinder; 4. Screw; 5. Protective cover; 6. Limiting strip; 7. Power chamber; 8. Limiting ring; 9. Gear ring; 10. Disc; 11. Rectangular groove; 12. Rotating column; 13. Hexagonal groove; 14. Bevel gear one; 15. Bevel gear two; 16. Threaded rod; 17. First gear; 18. Fixed column; 19. Torsion spring; 20. U-shaped hook. Detailed Implementation
[0045] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.
[0046] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items, and therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
[0047] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0048] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.
[0049] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
[0050] Example 1:
[0051] Please see Figure 1 - Figure 10 As shown, this embodiment provides a concealed joint ring-type anti-theft lock, including:
[0052] The lock body 1 has a sliding groove 2 inside and a U-shaped hook 20 is rotatably installed on the lock body 1. The sliding groove 2 has a lock cylinder 3 inside and a screw 4 is threaded on the lock cylinder 3. A protective cover 5 is inserted and installed inside the sliding groove 2 and at the top of the lock cylinder 3. A limit strip 6 is slidably installed inside the sliding groove 2. One side of the limit strip 6 extends into the protective cover 5 and the limit strip 6 and the protective cover 5 are inserted and cooperated.
[0053] Threaded rod 16 is rotatably installed in sliding groove 2 and located on one side of limit bar 6. One end of threaded rod 16 passes through limit bar 6 and is threadedly connected to limit bar 6.
[0054] A drive assembly is located inside the lock body 1 and is used to drive the threaded rod 16 to rotate.
[0055] The power chamber 7 is located inside the lock body 1. A toothed ring 9 is rotatably installed inside the power chamber 7. A limit ring 8 is slidably installed inside the power chamber 7 and on one side of the toothed ring 9. A disc 10 is fixedly installed inside the limit ring 8, and the limit ring 8 and the toothed ring 9 are inserted into each other. A rectangular groove 11 is provided inside the disc 10.
[0056] The reset assembly is located inside the lock body 1 and is used to reset the rotation of the toothed ring 9.
[0057] When it is necessary to unlock the lock body 1, first insert the key into the rectangular slot 11, then press the disc 10. The disc 10 drives the limiting ring 8 to slide towards the toothed ring 9. During this time, the user continues to try to turn the key. When the limiting ring 8 is just inserted into the toothed ring 9, the key can drive the disc 10, the limiting ring 8 and the toothed ring 9 to rotate in the forward direction. Through the reset component, when the disc 10 rotates 90° in the forward direction, the key can be inserted into the unlocking port of the lock cylinder 3 to unlock. After unlocking, through the reset component, the toothed ring 9 can rotate in the reverse direction and return to its original position. The toothed ring 9 drives the limiting ring 8 and the disc 10 to rotate in the reverse direction and return to their original positions. Finally, under the action of gravity, the limiting ring 8 will slide down and disengage from the toothed ring 9.
[0058] When a thief tries to unlock the lock body 1, the key is first inserted into the rectangular slot 11. However, the rectangular slot 11 and the unlocking port of the lock cylinder 3 are intersected, making it impossible for the thief to insert the key into the unlocking port of the lock cylinder 3. At the same time, the limiting ring 8 cannot rotate when it is not inserted into the toothed ring 9, and can only slide in the power chamber 7. When the thief presses the disc 10, it is very easy to press the disc 10 and pass through the toothed ring 9, so that the thief cannot rotate the disc 10 and cannot unlock the U-shaped hook 20, thus hiding the lock cylinder 3 and making it impossible to unlock.
[0059] When it is necessary to replace the lock cylinder 3, first unlock the U-hook 20, then rotate the U-hook 20. Through the set drive component, the bevel gear 15 can be driven to rotate. The bevel gear 15 drives the threaded rod 16 to rotate. Under the action of the thread, the threaded rod 16 drives the limit strip 6 to slide away from the protective cover 5. When the limit strip 6 is completely disengaged from the protective cover 5, the lock body 1 is placed in reverse so that the protective cover 5 is facing down. Under the action of gravity, the protective cover 5 will slide out of the sliding groove 2. Finally, the screw 4 is removed with a tool, and the lock cylinder 3 is taken out and replaced. The above operation can be reversed to install the new lock cylinder 3, which is convenient for personnel to replace the lock cylinder 3. However, the lock cylinder 3 cannot be replaced when it is not unlocked.
[0060] In this embodiment, the driving component includes:
[0061] Bevel gear 15 is rotatably mounted in sliding groove 2 and located at one end of threaded rod 16. Bevel gear 15 is fixedly connected to threaded rod 16.
[0062] A bevel gear 14 is meshed and installed on one side of a bevel gear 2 15, and a rotating column 12 is fixedly installed at one end of the bevel gear 14. One end of the rotating column 12 passes through the sliding groove 2 and extends to one end of the U-shaped hook 20. Both the bevel gear 14 and the rotating column 12 are rotatably connected to the sliding groove 2. A hexagonal groove 13 is provided at one end of the rotating column 12.
[0063] When it is necessary to replace the lock cylinder 3, firstly, unlock the U-hook 20, then rotate the U-hook 20 to expose the rotating column 12. Next, use a hex wrench to rotate the rotating column 12 through the hexagonal groove 13. The rotating column 12 drives the first bevel gear 14 to rotate, which in turn drives the second bevel gear 15 that meshes with it to rotate. The second bevel gear 15 drives the threaded rod 16 to rotate. Under the action of the thread, the threaded rod 16 drives the limiting strip 6 to slide away from the protective cover 5. After the limiting strip 6 is completely disengaged from the protective cover 5, the lock body 1 is placed upside down so that the protective cover 5 faces down. Under the action of gravity, the protective cover 5 will slide out of the sliding groove 2. Finally, the screw 4 is removed with a tool, and the lock cylinder 3 is taken out and replaced. The above operation can be reversed to install the new lock cylinder 3, which is convenient for personnel to replace the lock cylinder 3. However, the lock cylinder 3 cannot be replaced when it is not unlocked.
[0064] In this embodiment, the reset component includes:
[0065] The first gear 17 is rotatably installed in the power cavity 7 and located on one side of the gear ring 9. The first gear 17 meshes with the gear ring 9. A fixing post 18 is fixedly installed at one end of the first gear 17 and is rotatably connected to the power cavity 7. A torsion spring 19 is sleeved on the fixing post 18. The two ends of the torsion spring 19 are fixed to the first gear 17 and the inner wall of the power cavity 7, respectively.
[0066] When it is necessary to unlock the lock body 1, first insert the key into the rectangular slot 11, then press the disc 10. The disc 10 drives the limiting ring 8 to slide towards the toothed ring 9. During this time, the user continues to try to turn the key. When the limiting ring 8 is just inserted into the toothed ring 9, the key can drive the disc 10, the limiting ring 8 and the toothed ring 9 to rotate in the forward direction. The toothed ring 9 drives the first gear 17 that meshes with it to rotate in the forward direction. At the same time, the torsion spring 19 is twisted. When the disc 10 rotates 90° in the forward direction, the key can be inserted into the unlocking port of the lock cylinder 3 to unlock. After unlocking, under the torsional force of the torsion spring 19, the fixed post 18 and the first gear 17 will rotate in the opposite direction and return to their original positions. The first gear 17 drives the toothed ring 9 that meshes with it to rotate in the opposite direction and return to its original position. The toothed ring 9 drives the limiting ring 8 and the disc 10 to rotate in the opposite direction and return to their original positions. Finally, under the action of gravity, the limiting ring 8 will slide down and disengage from the toothed ring 9.
[0067] When a thief tries to unlock the lock body 1, the key is first inserted into the rectangular slot 11. However, the rectangular slot 11 and the unlocking port of the lock cylinder 3 are intersected, making it impossible for the thief to insert the key into the unlocking port of the lock cylinder 3. At the same time, the limiting ring 8 cannot rotate when it is not inserted into the toothed ring 9, and can only slide in the power chamber 7. When the thief presses the disc 10, it is very easy to press the disc 10 and pass through the toothed ring 9, so that the thief cannot rotate the disc 10 and cannot unlock the U-shaped hook 20, thus hiding the lock cylinder 3 and making it impossible to unlock.
[0068] Example 2:
[0069] This embodiment provides a concealed joint ring-type anti-theft lock, which, in addition to the technical solutions of the above embodiments, also has the following technical features.
[0070] In this embodiment, the size of the rectangular groove 11 is larger than the size of the unlocking port of the lock cylinder 3.
[0071] Specifically, ensure that one end of the key can be inserted into the rectangular slot 11.
[0072] Example 3:
[0073] This embodiment provides a concealed joint ring-type anti-theft lock, which, in addition to the technical solutions of the above embodiments, also has the following technical features.
[0074] In this embodiment, one end of the rotating column 12 is in close contact with the U-shaped hook 20.
[0075] Among these measures, it is ensured that the rotating column 12 will not affect the rotation and unlocking of the U-shaped hook 20.
[0076] Example 4:
[0077] This embodiment provides a concealed joint ring-type anti-theft lock, which, in addition to the technical solutions of the above embodiments, also has the following technical features.
[0078] In this embodiment, the limiting ring 8 and the disk 10 are integrally formed.
[0079] Among them, the stability of the limiting ring 8 and the disk 10 during use is ensured.
[0080] Example 5:
[0081] This embodiment provides a concealed joint ring-type anti-theft lock, which, in addition to the technical solutions of the above embodiments, also has the following technical features.
[0082] In this embodiment, the rectangular groove 11 and the unlocking port of the lock cylinder 3 are arranged in a cross configuration.
[0083] Specifically, it ensures that after the key is inserted into the rectangular slot 11, the key cannot be directly inserted into the lock cylinder 3.
[0084] Working principle: When it is necessary to unlock the lock body 1, first insert the key into the rectangular slot 11, then press the disc 10. The disc 10 drives the limiting ring 8 to slide towards the toothed ring 9. During this period, the user continues to try to turn the key. When the limiting ring 8 is just inserted into the toothed ring 9, the key can drive the disc 10, the limiting ring 8 and the toothed ring 9 to rotate in the forward direction. The toothed ring 9 drives the first gear 17 that meshes with it to rotate in the forward direction. At the same time, the torsion spring 19 is twisted. When the disc 10 rotates 90° in the forward direction, the key can be inserted into the unlocking port of the lock cylinder 3 to unlock. After unlocking is completed, under the action of the torsion force of the torsion spring 19, the fixed column 18 and the first gear 17 will rotate in the opposite direction and return to their original positions. The first gear 17 drives the toothed ring 9 that meshes with it to rotate in the opposite direction and return to its original position. The toothed ring 9 drives the limiting ring 8 and the disc 10 to rotate in the opposite direction and return to their original positions. Finally, under the action of gravity, the limiting ring 8 will slide down and disengage from the toothed ring 9.
[0085] When a thief tries to unlock the lock body 1, the key is first inserted into the rectangular slot 11. However, the rectangular slot 11 and the unlocking port of the lock cylinder 3 are intersected, making it impossible for the thief to insert the key into the unlocking port of the lock cylinder 3. At the same time, the limiting ring 8 cannot rotate when it is not inserted into the toothed ring 9, and can only slide in the power chamber 7. When the thief presses the disc 10, it is very easy to press the disc 10 and pass through the toothed ring 9, so that the thief cannot rotate the disc 10 and cannot unlock the U-shaped hook 20, thus hiding the lock cylinder 3 and making it impossible to unlock.
[0086] When it is necessary to replace the lock cylinder 3, first unlock the U-hook 20, then rotate the U-hook 20 to expose the rotating column 12. Next, use a hex wrench to rotate the rotating column 12 through the hexagonal groove 13. The rotating column 12 drives the first bevel gear 14 to rotate, which in turn drives the second bevel gear 15 that meshes with it to rotate. The second bevel gear 15 drives the threaded rod 16 to rotate. Under the action of the thread, the threaded rod 16 drives the limiting strip 6 to slide away from the protective cover 5. When the limiting strip 6 is completely disengaged from the protective cover 5, the lock body 1 is placed upside down so that the protective cover 5 faces down. Under the action of gravity, the protective cover 5 will slide out of the sliding groove 2. Finally, the screw 4 is removed with a tool, and the lock cylinder 3 is taken out and replaced. The above operation can be reversed to install the new lock cylinder 3, which is convenient for personnel to replace the lock cylinder 3. However, the lock cylinder 3 cannot be replaced when it is not unlocked.
[0087] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
Claims
1. A concealed joint ring type padlock, characterized in that, Include: Lock body (1), the sliding groove (2) is opened in the lock body (1), and the U-shaped hook (20) is rotatably installed on the lock body (1), the sliding groove (2) is provided with the lock cylinder (3), the lock cylinder (3) is threadedly installed with the screw (4), the sliding groove (2) is inserted and installed with the protective cover (5) at the top of the lock cylinder (3), the sliding groove (2) is slidably installed with the limiting strip (6), one side of the limiting strip (6) extends into the protective cover (5), and the limiting strip (6) is inserted and matched with the protective cover (5); Threaded rod (16), the threaded rod (16) is rotatably installed in the sliding groove (2) and located at one side of the limiting strip (6), one end of the threaded rod (16) penetrates the limiting strip (6), and the threaded rod (16) is threadedly connected with the limiting strip (6); Drive assembly, the drive assembly is located in the lock body (1), and is used for driving the threaded rod (16) to rotate; Power cavity (7), the power cavity (7) is opened in the lock body (1), the gear ring (9) is rotatably installed in the power cavity (7), the limiting ring (8) is slidably installed in the power cavity (7) and located at one side of the gear ring (9), the limiting ring (8) is fixedly installed with the disc (10), and the limiting ring (8) is inserted and matched with the gear ring (9), the rectangular groove (11) is opened in the disc (10); Reset assembly, the reset assembly is located in the lock body (1), and is used for resetting the rotation of the gear ring (9).
2. A concealed joint ring type burglar proof lock as claimed in claim 1 wherein, The drive assembly comprises: Bevel gear two (15), the bevel gear two (15) is rotatably installed in the sliding groove (2) and located at one end of the threaded rod (16), and the bevel gear two (15) is fixedly connected with the threaded rod (16); Bevel gear one (14), the bevel gear one (14) is engagedly installed at one side of the bevel gear two (15), one end of the bevel gear one (14) is fixedly installed with the rotating column (12), one end of the rotating column (12) penetrates the sliding groove (2) and extends to one end of the U-shaped hook (20), the bevel gear one (14) and the rotating column (12) are rotatably connected with the sliding groove (2), and one end of the rotating column (12) is provided with the hexagonal groove (13).
3. A concealed joint ring type burglar proof lock as claimed in claim 2 wherein, The reset assembly comprises: First gear (17), the first gear (17) is rotatably installed in the power cavity (7) and located at one side of the gear ring (9), the first gear (17) is engaged with the gear ring (9), one end of the first gear (17) is fixedly installed with the fixed column (18), and the fixed column (18) is rotatably connected with the power cavity (7), the fixed column (18) is provided with the torsion spring (19), and the two ends of the torsion spring (19) are fixedly connected with the first gear (17) and the inner wall of the power cavity (7) respectively.
4. A concealed joint ring type burglar proof lock as claimed in claim 1 wherein, The size of the rectangular groove (11) is greater than the size of the unlocking port of the lock cylinder (3).
5. A concealed joint ring type burglar proof lock as claimed in claim 2 wherein, One end of the rotating column (12) is in close contact with the U-shaped hook (20).
6. A concealed joint ring type burglar proof lock as claimed in claim 1 wherein, The limiting ring (8) and the disc (10) are integrally formed.
7. A concealed joint ring type burglar proof lock as claimed in claim 1 wherein, The rectangular groove (11) and the unlocking port of the lock cylinder (3) are cross arranged.