Lock head encryption structure of a rope lock
Patent Information
- Application Number
- CN202522509301.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-26
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-11-26
AI Technical Summary
锁盒内并无对应的锁头加密/识别结构，这使得只要锁头的大小与锁盒的插孔匹配，锁头便可以插入到锁盒内，然而不同的类型的锁/锁头，其锁定的卡槽的位置是不一样的，部分锁头甚至是通过其外壁的凸台进行锁定的
[0012]本实用新型取得的技术效果是：通过锁盒、秘钥环和弹子形成与锁头匹配的加密结构，使得不匹配的锁头无法驱动秘钥环进行移动，进而避免了锁盒内或一侧设置的锁舌对不匹配的锁头进行锁定，规避不匹配锁头插入导致卡死或损坏内部部件的情况，同时，保障了绳锁的安全性，避免绳锁被冒用的锁头使用。
Smart Images
Figure CN224919012U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rope lock structure technology, and in particular to a lock head encryption structure for a rope lock. Background Technology
[0002] Existing rope locks generally include a lock housing, a rope, a lock cylinder, and a locking mechanism. The two ends of the rope are fixedly connected to the lock cylinder, which is inserted into the lock housing and connected to the locking mechanism. The locking mechanism is used to lock the lock cylinder. Unlocking and unlocking the rope lock are achieved by moving the bolt of the locking mechanism. The lock housing does not contain a corresponding lock cylinder encryption / identification structure. This means that as long as the lock cylinder's size matches the lock housing's insertion hole, it can be inserted into the lock housing. However, the position of the locking slot varies depending on the type of lock / lock cylinder; some lock cylinders even lock using protrusions on their outer wall.
[0003] When the lock cylinder is inserted into the wrong lock box, it may still move some internal components, but due to the mismatch of the locking slots / protrusions, it may eventually jam, damage internal components, and make the locking unreliable. Furthermore, the lock box's inability to identify and determine if the lock cylinder is compatible can lead to the misuse of lock cylinders, in which case the security of the rope lock will not be guaranteed. The traditional method of matching lock cylinders by the size of the insertion hole is easy to crack and offers low security.
[0004] Therefore, there is an urgent need for a lock encryption structure for rope locks that can solve one or more of the above problems. Utility Model Content
[0005] To address one or more problems existing in the prior art, this utility model provides a lock head encryption structure for a rope lock. The technical solution adopted by this utility model to solve the above problems is: a lock head encryption structure for a rope lock, the lock head encryption structure comprising: a lock box, the lock box having a socket for inserting a lock head, and a key ring inserted into the socket; The lock box is provided with a first through hole, the outer opening of the first through hole is sealed by the top cover, the key ring is provided with a second through hole, the second through hole is connected to the first through hole, an upper pin is installed in the first through hole, a lower pin is provided below the upper pin, a second spring is provided between the upper pin and the top cover, and the second spring pushes the upper pin downward. Under the action of the second spring, one end of the lower pin extends into the ring hole of the key ring, and the other end of the lower pin is engaged and limited by the second through hole; The outer wall of the lock head is provided with a lock groove and a security step, the security step being used to lift the lower pin; When the lock head matches the lock box, the lock head is inserted into the ring hole of the key ring and moves the key ring forward. The upper and lower pins are lifted up without interfering with the forward and backward movement of the key ring.
[0006] In some embodiments, the lock box is provided with a slot, the jack is connected to the slot, the slot is used for insertion of the bolt, and the bolt is used to engage and lock with the lock head's lock groove.
[0007] Furthermore, the key ring is provided with a boss, which is inserted into the slot and moves away from or closer to the slot as the key ring moves. The boss is used to limit the insertion of the locking tongue.
[0008] In some embodiments, two of the first through hole and two of the second through hole are provided to form two sets of through holes, and two of the upper ball and two of the lower ball are provided to form two sets of ball, and the two sets of through holes are used to insert the two sets of ball; The encryption step includes a first encryption step and a second encryption step, and the two sets of balls are respectively matched with the first encryption step and the second encryption step.
[0009] Furthermore, the lengths of the lower pins in each of the two sets of pins are different, and the heights of the first encryption step and the second encryption step are adapted to the lengths of the corresponding lower pins, so that the key ring can be pushed to unlock.
[0010] In some embodiments, a limiting step is provided in the socket to limit the key ring from moving inward.
[0011] Furthermore, a fixing seat is provided on the outer side of the key ring, and a first spring is provided between the key ring and the fixing seat. The first spring pushes the key ring toward the limiting step.
[0012] The technical effect achieved by this utility model is that by forming an encrypted structure that matches the lock head through the lock box, key ring and pin tumbler, the mismatched lock head cannot drive the key ring to move, thereby avoiding the lock tongue set in the lock box or on one side from locking the mismatched lock head, avoiding the situation where the mismatched lock head is inserted and jammed or damaged internal components. At the same time, it ensures the security of the rope lock and prevents the rope lock from being used by a fake lock head.
[0013] Compared to traditional slot recognition or bolt recognition, it offers higher reliability and durability. Traditional bolt recognition involves the bolt, propelled by a spring, matching the depth of the groove on the lock head. If the matching is incorrect, the bolt cannot extend properly, preventing the lock from locking. However, since the bolt is initially propelled into the slot by the spring, its front end remains against the outer wall of the lock head. This leads to wear and jamming during the recognition process, resulting in the lock head remaining stuck and unable to be pulled out even after a mismatch. Alternatively, the bolt on the lock head may push the bolt inward, damaging internal components. Over time, wear on the bolt can also cause the rope lock to become unreliable. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the present invention; Figure 2 This is a schematic diagram of the present invention on a rope lock; Figure 3 This is an exploded view of the present invention; Figure 4 This is a cross-sectional view of the lock head of this utility model when it is not fully inserted; Figure 5 This is a cross-sectional view of the lock head and lock box of this utility model when they are matched. Figure 6 This is a cross-sectional view of the lock head of this utility model pushing the key ring forward.
[0015] In the diagram, 1. Lock box; 10. Insertion hole; 100. Limiting step; 11. Slot; 12. First through hole; 13. Lower pin; 14. Upper pin; 15. Second spring; 16. Top cover; 2. Lock head; 20. Lock groove; 21. First encryption step; 22. Second encryption step; 23. Lock rope; 3. Fixing base; 30. First spring; 4. Key ring; 40. Ring hole; 41. Second through hole; 42. Boss; 5. Lock tongue assembly. Detailed Implementation
[0016] To make the above-mentioned objectives, features, and advantages of this utility model more readily understood, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0017] This utility model discloses a lock head encryption structure for a rope lock, such as... Figures 1-3As shown, the lock encryption structure includes: a lock box 1, the lock box 1 is provided with a socket 10 for the lock head 2 to be inserted, and a key ring 4 is installed in the socket 10; Combination Figure 3 , Figure 4 As shown, the lock box 1 is provided with a first through hole 12, the outer opening of the first through hole 12 is blocked by the upper cover 16, the key ring 4 is provided with a second through hole 41, the second through hole 41 communicates with the first through hole 12, an upper pin 14 is installed in the first through hole 12, a lower pin 13 is provided on the lower side of the upper pin 14, a second spring 15 is provided between the upper pin 14 and the upper cover 16, the second spring 15 pushes the upper pin 14 downward; under the action of the second spring 15, one end of the lower pin 13 extends into the ring hole 40 of the key ring 4, and the other end of the lower pin 13 is engaged and limited by the second through hole 41; Combination Figure 3 , Figure 5 , Figure 6 As shown, the outer wall of the lock head 2 is provided with a lock groove 20 and encryption steps (such as the first encryption step 21 and the second encryption step 22 in the figure). The encryption steps are used to lift the lower pin 13. When the lock head 2 matches the lock box 1, the lock head 2 is inserted into the ring hole 40 of the key ring 4 and drives the key ring 4 to move forward. The upper pin 14 and the lower pin 13 are lifted up and do not interfere with the forward and backward movement of the key ring 4.
[0018] Specifically, in combination Figures 2-6 As shown, the lock box 1 is provided with a slot 11, the insertion hole 10 communicates with the slot 11, the slot 11 is used for the insertion of the lock tongue, and the lock tongue is used to engage and lock with the lock groove 20 of the lock head 2; The key ring 4 is provided with a protrusion 42, which is inserted into the slot 11 and moves away from or towards the slot 11 as the key ring 4 moves. The protrusion 42 is used to limit the insertion of the bolt. That is, when the lock head is not inserted or the inserted lock head is mismatched, the protrusion 42 will prevent the bolt from being inserted into the socket 10 along the slot 11, and thus prevent the bolt from engaging with the step or groove on the side wall of the lock head. At this time, the mismatched lock head can be pulled out smoothly without engaging with the internal components. Conversely, when the lock head is matched, the protrusion 42 moves forward with the movement of the key ring 4, so that the protrusion 42 no longer prevents the bolt from engaging with the lock groove 20 of the lock head 2, allowing the lock head 2 to engage smoothly with the bolt to achieve locking. Furthermore, the bolt will not slide along the side wall of the inserted lock head, which reduces the wear of the bolt and also reduces the probability of jamming or seizing.
[0019] It should be noted that, in combination Figures 4-6As shown, when the encryption step of the lock head 2 matches the upper and lower pins and the key ring 4 of the lock box 1, the upper pin 14 is fully retracted into the first through hole 12, and the lower pin 13 is fully retracted into the second through hole 41, thus decrypting the lock head. At this time, the key ring 4 can be pushed forward by the lock head 2. Conversely, if the lock head 2 cannot push the key ring 4 forward (the upper and lower pins cannot be fully retracted to the decrypted state, and they will jam the key ring 4, preventing it from moving), then the lock head 2 cannot be locked by the bolt. The key ring 4 is in the encryption position when it is retracted into the end of the socket 10, and in the decryption position when it is partially extended out of the end of the socket 10.
[0020] Combination Figure 1 , Figure 2 As shown, in use, the two lock heads 2 are connected together by a locking rope 23. Each of the two lock heads 2 has a corresponding lock box 1 for cooperation. A lock tongue assembly 5 is provided between the two lock boxes 1. The lock tongue assembly 5 drives the lock tongue to insert into the slot 11 and engage with the lock groove 20 of the lock head 2 to achieve locking. The lock tongue assembly 5 is used for opening / closing the lock. The lock tongue assembly 5 can be an existing conventional lock tongue push structure, such as a linkage reciprocating push structure, a slide bar pull structure, etc. Therefore, its specific structure will not be described in detail here.
[0021] Specifically, in combination Figures 3-6 As shown, there are two of each of the first through hole 12 and the second through hole 41, forming two sets of through holes. There are two of each of the upper ball 14 and the lower ball 13, forming two sets of ball. The two sets of through holes are used to insert the two sets of ball. The encryption step includes a first encryption step 21 and a second encryption step 22. The two sets of balls are respectively matched with the first encryption step 21 and the second encryption step 22. The encryption level is improved by setting two encryption steps. In this case, the length of the lower pin 13 in each of the two sets of pins is different, and the height of the first encryption step 21 and the second encryption step 22 are adapted to the length of the corresponding lower pin 13 so that the key ring 4 can be pushed to unlock.
[0022] Specifically, the reset of the key ring 4 can be a conventional reset structure, such as a tension spring reset or a top spring reset. In the tension spring reset (not shown in the figure), the lock box is provided with a tension spring. One end of the tension spring is fixedly connected to the lock box, and the other end is fixedly connected to the key ring. The tension spring pulls the key ring towards the inside of the socket, so that after the lock head is pulled out, the tension spring can pull the key ring back to the initial encrypted position. When the top spring returns to its original position, combined with Figure 3 , Figure 4 As shown, the socket 10 is provided with a limiting step 100 to limit the key ring 4 to move inward. A fixing seat 3 is provided on the outside of the key ring 4. A first spring 30 is provided between the key ring 4 and the fixing seat 3. The first spring 30 pushes the key ring 4 towards the limiting step 100. That is, after the lock head 2 is pulled out, the first spring 30 pushes the key ring 4 back to the initial encryption position.
[0023] In summary, this application forms an encrypted structure that matches the lock head by using a lock box, key ring, and pin tumblers. This prevents mismatched lock heads from driving the key ring to move, thereby avoiding the lock tongue located inside or on one side of the lock box from locking mismatched lock heads. This avoids situations where mismatched lock heads are inserted and cause jamming or damage to internal components. At the same time, it ensures the security of the rope lock and prevents the rope lock from being used by misused lock heads.
[0024] Compared to traditional slot recognition or bolt recognition, it offers higher reliability and durability. Traditional bolt recognition involves the bolt, propelled by a spring, matching the depth of the groove on the lock head. If the matching is incorrect, the bolt cannot extend properly, preventing the lock from locking. However, since the bolt is initially propelled into the slot by the spring, its front end remains against the outer wall of the lock head. This leads to wear and jamming during the recognition process, resulting in the lock head remaining stuck and unable to be pulled out even after a mismatch. Alternatively, the bolt on the lock head may push the bolt inward, damaging internal components. Over time, wear on the bolt can also cause the rope lock to become unreliable.
[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Specifically, the terms "first position" and "second position" refer to two different positions.
[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0027] The embodiments described above are merely illustrative of one or more implementations of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.
Claims
1. A lock head encryption structure for a rope lock, characterized in that, The lock encryption structure includes: a lock box, the lock box having a socket for inserting the lock head, and a key ring being inserted into the socket; The lock box is provided with a first through hole, the outer opening of the first through hole is sealed by the top cover, the key ring is provided with a second through hole, the second through hole is connected to the first through hole, an upper pin is installed in the first through hole, a lower pin is provided on the lower side of the upper pin, and a second spring is provided between the upper pin and the top cover, the second spring pushes the upper pin downward; Under the action of the second spring, one end of the lower pin extends into the ring hole of the key ring, and the other end of the lower pin is engaged and limited by the second through hole; The outer wall of the lock head is provided with a lock groove and a security step, the security step being used to lift the lower pin; When the lock head matches the lock box, the lock head is inserted into the ring hole of the key ring and moves the key ring forward. The upper and lower pins are lifted up without interfering with the forward and backward movement of the key ring.
2. The lock head encryption structure of the rope lock according to claim 1, characterized in that, The lock box is provided with a slot, and the insertion hole communicates with the slot. The slot is used for the insertion of the bolt, and the bolt is used to engage and lock with the lock head's lock groove.
3. The lock head encryption structure of the rope lock according to claim 1, characterized in that, Two of each of the first and second through holes are provided to form two sets of through holes. Two of each of the upper and lower ball bearings are provided to form two sets of ball bearings. The two sets of through holes are used to insert the two sets of ball bearings. The encryption step includes a first encryption step and a second encryption step, and the two sets of balls are respectively matched with the first encryption step and the second encryption step.
4. The lock head encryption structure of the rope lock according to claim 3, characterized in that, The length of the lower pin in each of the two sets of pins is different. The height of the first encryption step and the second encryption step are adapted to the length of the corresponding lower pin, so that the key ring can be pushed to unlock.
5. The lock head encryption structure of the rope lock according to claim 1, characterized in that, The socket is provided with a limiting step to restrict the key ring from moving inward.
6. The lock head encryption structure of the rope lock according to claim 5, characterized in that, A fixing seat is provided on the outer side of the key ring, and a first spring is provided between the key ring and the fixing seat. The first spring pushes the key ring toward the limiting step.