Balls and lock shell matched positioning type anti-theft lock
By using ball joints and lock housing positioning anti-theft locks, which utilize lock pins and ball joints for locking, the problem of traditional mechanical locks not being able to automatically reset is solved, thus improving the security of important locations.
Patent Information
- Application Number
- CN202410032544.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-10
- Publication Date
- 2026-01-27
AI Technical Summary
Traditional mechanical locks cannot automatically reset after being opened by technical means, making it difficult for users to detect signs of tampering. They can also be broken multiple times, which can easily cause damage, especially in important locations.
Design a ball-operated lock housing positioning anti-theft lock. The locking component consists of a lock pin, ball bearings, and flat ball bearings. The ball bearings are locked in place by gravity to prevent the lock cylinder from automatically returning to its original position and to alert the user that the lock cylinder has been illegally opened.
This design prevents the lock cylinder from automatically resetting after being illegally opened, allowing users to promptly detect and replace the lock cylinder, thus improving security in critical locations.
Smart Images
Figure CN121407780A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of security door locks, and in particular to a ball-operated lock housing positioning type security lock. Background Technology
[0002] Traditional mechanical locks use a top-and-bottom row of pins in the cylinder. To pick a lock using technical means, a thief first inserts a wire into the cylinder and rotates it to one side. Then, another wire is inserted to pry open the lock pin, disengaging the pins. Once all the pins are disengaged, the cylinder opens, allowing the thief to steal the lock. Traditional mechanical locks automatically reset after the wire is removed if the technical picking fails, leaving no trace of tampering. Current mechanical locks can be repeatedly broken. If signs of a lock cylinder breach are not detected promptly, the risk of further unlocking increases, especially for locks located in critical positions, where a breach can result in significant financial losses. Summary of the Invention
[0003] To address the aforementioned problems, this invention proposes a ball-bearing locking housing positioning anti-theft lock.
[0004] The technical solution adopted in this invention is: a ball-bearing locking housing positioning anti-theft lock, including a lock housing, wherein the lock housing is provided with a lock cylinder hole and a plurality of adjustment grooves communicating with the lock cylinder hole, and the inner wall of the lock cylinder hole is provided with a plurality of positioning grooves.
[0005] A lock cylinder is rotatably connected to the lock cylinder hole. The lock cylinder has keyholes distributed along the axial direction. The side wall of the lock cylinder has several pin holes, which are connected to the keyholes.
[0006] The locking assembly includes, from top to bottom, a locking pin, a ball bearing, and a flat ball bearing. The locking pin is slidably connected to the pin hole, and the flat ball bearing is slidably connected to the adjustment groove. An elastic element is provided between the flat ball bearing and the adjustment groove. The radius of the ball bearing is greater than the depth of the positioning groove. The locking pin is used to engage with the positioning groove.
[0007] Furthermore, there are at least two sets of positioning grooves, which are respectively located on both sides of the adjustment groove.
[0008] Furthermore, the cross-section of the positioning groove is rectangular.
[0009] Compared with the prior art, the present invention has the following beneficial effects:
[0010] When the door lock provided by this invention is technically unlocked, the locking assembly consisting of the lock pin, ball bearings, and flat ball bearings moves downward under the action of external force. When the flat ball bearing enters the adjustment groove, the lock cylinder rotates. During the rotation, the ball bearings enter the positioning groove under the action of gravity and are positioned between the lock cylinder and the lock shell by the ball bearings, thereby locking the lock cylinder. After the lock cylinder is locked, it cannot be unlocked with a normal key, thus reminding the user that the door lock has been technically unlocked. Attached Figure Description
[0011] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0012] Figure 1 This is a schematic diagram of the door lock in the closed state according to the present invention;
[0013] Figure 2 This is a schematic diagram of the normal unlocking state of the door lock according to the present invention;
[0014] Figure 3 This is a schematic diagram of the lock cylinder rotation state during normal unlocking according to the present invention;
[0015] Figure 4 , 5 This is a schematic diagram of the locking state of the lock cylinder of the present invention;
[0016] The invention reference information is as follows:
[0017] 10. Lock case; 11. Lock cylinder hole; 12. Adjustment groove; 13. Positioning groove; 20. Lock cylinder; 21. Keyhole; 22. Bolt hole; 31. Locking pin; 32. Ball bearing; 33. Flat ball bearing; 34. Elastic element;
[0018] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.
[0020] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.
[0021] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.
[0022] This invention provides a lock cylinder positioning anti-theft lock, comprising a lock shell 10, a lock cylinder hole 11 and several adjusting grooves 12 communicating with the lock cylinder hole 11, and several positioning grooves 13 on the inner wall of the lock cylinder hole 11; a lock cylinder 20, rotatably connected to the lock cylinder hole 11, the lock cylinder 20 having keyholes 21 distributed axially, and several pin holes 22 on the side wall of the lock cylinder 20 communicating with the keyholes 21; and a locking assembly, from top to bottom including a locking pin 31, a ball bearing 32, and a flat ball bearing 33, the locking pin 31 being slidably connected to the pin hole 22, the flat ball bearing 33 being slidably connected to the adjusting grooves 12, and an elastic element 34 between the flat ball bearing 33 and the adjusting groove 12, the radius of the ball bearing 32 being smaller than the depth of the positioning groove 13, and the diameter of the ball bearing 32 being larger than the depth of the positioning groove 13. The elastic element 34 may be a spring, etc.
[0023] The working principle of this door lock is as follows: Figure 1 This is a schematic diagram of the structure of the door lock in its normal closed state, where the flat bead 33 blocks the rotation of the lock cylinder 20; Figure 2 This diagram illustrates the internal structure of the lock when the correct key is inserted. The ball bearings 32 and 33 are fully engaged in the adjusting groove 12. Then, rotating the lock cylinder 20 unlocks the lock. During the technical unlocking process, the lock cylinder 20 is constantly subjected to a turning force. The unlocking operator slowly pushes the lock pin 31 downwards using a wire or similar tool. When it reaches... Figure 3When positioned, the flat ball 33 just enters the adjusting groove 12. Under the action of external steering force, the lock cylinder 20 rotates. During the rotation, under the action of gravity, the ball 32 slides into the positioning groove 13. Since the center of the ball 32 is below the opening of the positioning groove 13, it cannot be squeezed out of the positioning groove 13 when the lock cylinder 20 continues to rotate. At this time, the ball 32 is stuck between the lock cylinder 20 and the lock shell 10, thereby achieving the effect of locking the lock cylinder 2020. The specific door lock locking state is as follows: Figure 4 or Figure 5 As shown. Once this door lock is locked, even if the external force used for unlocking is removed, the lock cylinder 20 will not automatically return to its original position under the action of the ball bearing 32. Even with the correct key, it cannot be opened. This allows the user to know that the lock has been attempted to be unlocked, thus increasing their vigilance and prompting them to replace the lock cylinder 20. The anti-theft state of this door lock is irreversible, therefore it is commonly used in locations with high security requirements.
[0024] like Figure 4 , 5 As shown, there are at least two sets of positioning grooves 13, which are respectively located on both sides of the pin hole 22, so that the lock cylinder 20 can enter the anti-theft locking state when subjected to turning forces in different directions, thereby further improving the security performance of the door lock.
[0025] Specifically, the cross-section of the positioning groove 13 is rectangular, and the right-angled sides of the rectangle provide a better positioning effect for the ball 32 that has entered the locking state.
[0026] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.
Claims
1. A ball-operated lock housing positioning anti-theft lock, characterized in that: include A lock case, wherein the lock case has a lock cylinder hole and several adjustment grooves communicating with the lock cylinder hole, and several positioning grooves are provided on the inner wall of the lock cylinder hole; A lock cylinder is rotatably connected to the lock cylinder hole. The lock cylinder has keyholes distributed along the axial direction. The side wall of the lock cylinder has several pin holes, which are connected to the keyholes. The locking assembly includes, from top to bottom, a locking pin, a ball bearing, and a flat ball bearing. The locking pin is slidably connected to the pin hole, and the flat ball bearing is slidably connected to the adjustment groove. An elastic element is provided between the flat ball bearing and the adjustment groove. The radius of the ball bearing is smaller than the depth of the positioning groove, and the diameter of the ball bearing is larger than the depth of the positioning groove.
2. The ball-operated lock housing positioning anti-theft lock according to claim 1, characterized in that: The positioning groove is at least two sets, and the positioning groove is respectively located on both sides of the adjustment groove.
3. The ball-operated lock housing positioning anti-theft lock according to claim 1, characterized in that: The cross-section of the positioning groove is rectangular.