Improved U-shaped lock
By arranging the mechanical lock cylinder, electric lock cylinder, and bolt in a cross shape and setting staggered protrusions, the problem of bolt interference in U-locks is solved, achieving efficient unlocking and structural reliability, and extending the service life of the lock.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN DEYANG ENPU ELECTRONIC TECH CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-04-28
AI Technical Summary
In existing U-locks, the parallel arrangement of mechanical and electric lock cylinders can easily lead to interference between the bolts, affecting unlocking efficiency and potentially damaging the lock.
The mechanical lock cylinder and electric lock cylinder, as well as the first bolt and second bolt, are arranged in a cross shape to reduce the number of bosses and avoid bolt interference. The mechanical and electric bosses are staggered to ensure a compact and reliable structure.
It effectively reduces lock tongue interference, improves unlocking efficiency, enhances structural reliability, extends service life, and prevents lock jamming or damage.
Smart Images
Figure CN224173878U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lock technology, specifically to an improved U-shaped lock. Background Technology
[0002] U-locks are widely used due to their compact structure and reliable security. Currently, U-locks mainly have two unlocking methods: mechanical lock cylinder unlocking and electric lock cylinder unlocking. These two unlocking methods are often integrated into the same lock to meet different usage needs and improve security.
[0003] In existing integrated designs, mechanical lock cylinder unlocking and electric lock cylinder unlocking are usually arranged in parallel. While this design achieves functional integration to some extent, the U-shaped lock has a first and second bolt positioned opposite each other. During operation, this parallel dual-lock cylinder structure is highly susceptible to interference between the first and second bolts. Once interference occurs, it not only reduces the lock's unlocking efficiency but can also cause the lock to jam, fail to open or close properly, or even damage internal parts, significantly impacting the user experience and lifespan of the U-shaped lock. Utility Model Content
[0004] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by providing an improved U-lock.
[0005] The purpose of this utility model is achieved through the following technical solution: an improved U-shaped lock, including an outer lock body and an inner lock body disposed within the outer lock body; the outer lock body is provided with a first lock hole, a second lock hole, a first extension hole communicating with the first lock hole, and a second extension hole communicating with the second lock hole;
[0006] One end of the inner lock body is provided with a first locking tongue; the other end of the inner lock body is provided with a second locking tongue; one end of the first locking tongue is movably disposed in the first lock hole through a first extension hole; one end of the second locking tongue is movably disposed in the second lock hole through a second extension hole.
[0007] The inner lock body is provided with a mechanical lock cylinder and an electric lock cylinder for driving the movement of the first lock tongue and the second lock tongue; the mechanical lock cylinder is located between the top of the other end of the first lock tongue and the top of the other end of the second lock tongue; the electric lock cylinder is located between the bottom of the other end of the first lock tongue and the bottom of the other end of the second lock tongue.
[0008] The present invention is further configured such that a first abutment block is provided at one end of the first locking tongue; a second abutment block is provided at one end of the second locking tongue; and springs are provided between the first abutment block and the inner lock body and between the second abutment block and the inner lock body.
[0009] The present invention is further configured such that: a first protrusion is provided at the other end of the first abutment block; a second protrusion is provided at the other end of the second abutment block; a mechanical protrusion is provided at the bottom of the mechanical lock cylinder; an electric protrusion is provided at the top of the electric lock cylinder; the two sides of the mechanical protrusion abut against the top of the first protrusion and the top of the second protrusion, respectively; and the two sides of the electric protrusion abut against the bottom of the first protrusion and the bottom of the second protrusion, respectively.
[0010] The present invention is further configured such that the first boss and the second boss are misaligned; and the mechanical boss and the electric boss are directly opposite each other.
[0011] The present invention is further configured such that the mechanical lock cylinder is rotatably mounted on the inner lock body; the top of the mechanical lock cylinder is provided with a keyhole; the keyhole is exposed on the top of the inner lock body.
[0012] The present invention is further configured such that the electric lock cylinder is a motor; the output end of the motor is connected to the electric boss.
[0013] The present invention is further provided that the top of the inner lock body is detachably connected to a waterproof plug for covering the keyhole.
[0014] The present invention is further provided that the corners of the inner lock body are provided with anti-foolproof planes.
[0015] The present invention is further provided with a sealing ring between one end of the first locking tongue and the inner lock body, and between one end of the second locking tongue and the inner lock body.
[0016] The present invention is further configured such that: a window is provided on one side of the outer lock body; a first fixing hole is provided on one side of the inner lock body; the first fixing hole is exposed in the window; a first screw hole is provided on the other side of the outer lock body; a first screw is provided between the first fixing hole and the first screw hole; a second fixing hole is provided on the other side of the outer lock body; a second screw hole is provided on the other side of the inner lock body; a second screw is provided between the second fixing hole and the second screw hole; and a panel is detachably connected to one side of the outer lock at the window.
[0017] The present invention is further configured such that a reset switch is provided in the inner lock body; a trigger block is provided in the mechanical lock cylinder; and the trigger block is used to abut against the reset switch.
[0018] The present invention is further configured such that the inner lock body includes a front shell and a rear shell detachably connected to the front shell; the rear shell is provided with a waterproof groove around its perimeter; and the front shell is provided with waterproof protrusions around its perimeter that cooperate with the waterproof groove.
[0019] The beneficial effects of this utility model are as follows: By arranging the mechanical lock cylinder, electric lock cylinder, first lock tongue, and second lock tongue in a cross shape, this utility model can effectively reduce the number of bosses, greatly simplify the structure of the first lock tongue and the second lock tongue, and make it less likely for the first lock tongue and the second lock tongue to interfere with each other, thus improving the structural reliability. Attached Figure Description
[0020] The utility model will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present utility model. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the structure of this utility model in conjunction with the U-shaped locking rod;
[0022] Figure 2 This is a schematic diagram of the structure of this utility model;
[0023] Figure 3 This is a cross-sectional view of the present invention;
[0024] Figure 4 This is a cross-sectional view of the hidden panel of this utility model;
[0025] Figure 5 This is a schematic diagram of the structure of the inner lock body after the waterproof plug is hidden.
[0026] Figure 6 This is a cross-sectional view of the inner lock body of this utility model;
[0027] Figure 7 This is an internal structural diagram of the inner lock body of this utility model;
[0028] The components are as follows: 1. Outer lock body; 11. First lock hole; 12. Second lock hole; 13. First extension hole; 14. Second extension hole; 15. Window; 16. Panel; 2. Inner lock body; 21. Waterproof plug; 22. Anti-foolproof surface; 23. Sealing ring; 3. First bolt; 31. First stop block; 32. Spring; 33. First boss; 4. Second bolt; 41. Second stop block; 42. Second boss; 5. Mechanical lock cylinder; 51. Mechanical boss; 52. Keyhole; 6. Electric lock cylinder; 61. Electric boss; 71. First fixing hole; 72. First screw hole; 73. First screw; 81. Second fixing hole; 82. Second screw hole; 83. Second screw; 91. Reset switch; 92. Trigger block; 24. Front shell; 25. Rear shell; 26. Waterproof groove; 27. Waterproof protrusion. Detailed Implementation
[0029] The present invention will be further described in conjunction with the following embodiments.
[0030] Depend on Figures 1 to 7 As can be seen, the improved U-shaped lock described in this embodiment includes an outer lock body 1 and an inner lock body 2 disposed within the outer lock body 1; the outer lock body 1 is provided with a first lock hole 11, a second lock hole 12, a first extension hole 13 communicating with the first lock hole 11, and a second extension hole 14 communicating with the second lock hole 12; wherein, the outer lock body 1 is made of profile aluminum alloy, which can reduce processing costs;
[0031] One end of the inner lock body 2 is provided with a first locking tongue 3; the other end of the inner lock body 2 is provided with a second locking tongue 4; one end of the first locking tongue 3 is movably disposed in the first lock hole 11 through a first extension hole 13; one end of the second locking tongue 4 is movably disposed in the second lock hole 12 through a second extension hole 14.
[0032] The inner lock body 2 is provided with a mechanical lock cylinder 5 and an electric lock cylinder 6 for driving the first lock tongue 3 and the second lock tongue 4 to move; the mechanical lock cylinder 5 is located between the top of the other end of the first lock tongue 3 and the top of the other end of the second lock tongue 4; the electric lock cylinder 6 is located between the bottom of the other end of the first lock tongue 3 and the bottom of the other end of the second lock tongue 4.
[0033] Specifically, in this embodiment, the improved U-shaped lock is made by inserting the two ends of the U-shaped locking rod into the first lock hole 11 and the second lock hole 12 respectively, and locking one end of the first locking tongue 3 and one end of the second locking tongue 4 into the locking groove of the U-shaped locking rod, thereby completing the locking of the improved U-shaped lock and the U-shaped locking rod.
[0034] When unlocking, the user can move the first bolt 3 and the second bolt 4 through the mechanical lock cylinder 5, or through the electric lock cylinder 6. This causes one end of the first bolt 3 and one end of the second bolt 4 to retract into the inner lock body 2 through the first extension hole 13 and the second extension hole 14, respectively. At this time, one end of the first bolt 3, one end of the second bolt 4, and the lock groove of the U-shaped lock rod are separated, and the U-shaped lock rod can be removed from the outer lock body 1.
[0035] In addition, in this embodiment, by placing the mechanical lock cylinder 5 between the top of the other end of the first latch 3 and the top of the other end of the second latch 4, and placing the electric lock cylinder 6 between the bottom of the other end of the first latch 3 and the bottom of the other end of the second latch 4, the mechanical lock cylinder 5, the electric lock cylinder 6, the first latch 3 and the second latch 4 are arranged in a cross shape, which can effectively reduce the number of bosses, greatly simplify the structure of the first latch 3 and the second latch 4, and make it less likely for the first latch 3 and the second latch 4 to interfere with each other, thus making the structure more reliable.
[0036] This embodiment describes an improved U-shaped lock, in which a first stop block 31 is provided at one end of the first latch 3; a second stop block 41 is provided at one end of the second latch 4; and springs 32 are provided between the first stop block 31 and the inner lock body 2, and between the second stop block 41 and the inner lock body 2. This configuration allows one end of the first latch 3 to remain extended into the first lock hole 11, and simultaneously allows one end of the second latch 4 to remain extended into the second lock hole 12.
[0037] In this embodiment of the improved U-shaped lock, the other end of the first abutment block 31 is provided with a first protrusion 33; the other end of the second abutment block 41 is provided with a second protrusion 42; the bottom of the mechanical lock cylinder 5 is provided with a mechanical protrusion 51; the top of the electric lock cylinder 6 is provided with an electric protrusion 61; the two sides of the mechanical protrusion 51 abut against the top of the first protrusion 33 and the top of the second protrusion 42, respectively; the two sides of the electric protrusion 61 abut against the bottom of the first protrusion 33 and the bottom of the second protrusion 42, respectively. In this embodiment of the improved U-shaped lock, the mechanical lock cylinder 5 is rotatably mounted on the inner lock body 2; the top of the mechanical lock cylinder 5 is provided with a keyhole 52; the keyhole 52 is exposed on the top of the inner lock body 2. In this embodiment of the improved U-shaped lock, the electric lock cylinder 6 is a motor; the output end of the motor is connected to the electric protrusion 61.
[0038] Specifically, in this embodiment of the improved U-lock, when unlocking, the user can insert the key into the keyhole 52 to rotate the mechanical lock cylinder 5. During the rotation of the mechanical lock cylinder 5, the mechanical boss 51 pushes the first boss 33 and the second boss 42 away from each other, so that one end of the first bolt 3 and one end of the second bolt 4 retract into the inner lock body 2 through the first extension hole 13 and the second extension hole 14, respectively. Alternatively, the motor can be started directly, and the electric lock cylinder 6 drives the electric boss 61 to rotate, thereby pushing the first boss 33 and the second boss 42 away from each other, so that one end of the first bolt 3 and one end of the second bolt 4 retract into the inner lock body 2 through the first extension hole 13 and the second extension hole 14, respectively.
[0039] In this embodiment, an improved U-shaped lock is provided, wherein the first boss 33 and the second boss 42 are offset; the mechanical boss 51 and the electric boss 61 are directly opposite each other. This arrangement makes the overall structure compact and reliable.
[0040] In this embodiment, an improved U-shaped lock is provided, wherein the top of the inner lock body 2 is detachably connected to a waterproof plug 21 for covering the keyhole 52. This design prevents moisture from entering the interior of the inner lock body 2 through the keyhole 52.
[0041] This embodiment describes an improved U-shaped lock, in which the inner lock body 2 has a foolproof surface 22 at its corner. This feature prevents fooling during the installation of the inner lock body 2 and the outer lock body 1.
[0042] This embodiment describes an improved U-shaped lock, wherein one side of the outer lock body 1 is provided with a window 15; one side of the inner lock body 2 is provided with a first fixing hole 71; the first fixing hole 71 is exposed in the window 15; the other side of the outer lock body 1 is provided with a first screw hole 72; a first screw 73 is provided between the first fixing hole 71 and the first screw hole 72; the other side of the outer lock body 1 is provided with a second fixing hole 81; the other side of the inner lock body 2 is provided with a second screw hole 82; a second screw 83 is provided between the second fixing hole 81 and the second screw hole 82; and a panel 16 is detachably connected to one side of the outer lock in the window 15.
[0043] Specifically, this embodiment, through the above-mentioned settings, ensures a stable and reliable connection between the inner lock body 2 and the outer lock body 1. In addition, the second screw 83 is locked from the outside, and the first screw 73 is locked from the inside, which optimizes and prevents external unlocking and improves security.
[0044] This embodiment describes an improved U-shaped lock, in which a reset switch 91 is provided inside the inner lock body 2; a trigger block 92 is provided in the mechanical lock cylinder 5; the trigger block 92 is used to abut against the reset switch 91. Specifically, after the key is inserted into the keyhole 52, it drives the mechanical lock cylinder 5 to rotate. During the rotation of the mechanical lock cylinder 5, the trigger block 92 can trigger the reset switch 91, which requires an administrator to reset.
[0045] In this embodiment of the improved U-shaped lock, a sealing ring 23 is provided between one end of the first locking tongue 3 and the inner lock body 2, and between one end of the second locking tongue 4 and the inner lock body 2. The above arrangement can prevent moisture from entering the inner lock body 2 through the gap between one end of the first locking tongue 3 and the inner lock body 2, and the gap between one end of the second locking tongue 4 and the inner lock body 2.
[0046] This embodiment describes an improved U-shaped lock, wherein the inner lock body 2 includes a front shell 24 and a rear shell 25 detachably connected to the front shell 24; the rear shell 25 is provided with waterproof grooves 26 around its perimeter; the front shell 24 is provided with waterproof protrusions 27 that cooperate with the waterproof grooves 26 around its perimeter; the above-mentioned configuration facilitates the assembly and disassembly of the inner lock body 2; the cooperation between the waterproof grooves 26 and the waterproof protrusions 27 further prevents water vapor from entering the interior of the inner lock body 2.
[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.
Claims
1. An improved U-lock, characterized in that: It includes an outer lock body (1) and an inner lock body (2) disposed within the outer lock body (1); the outer lock body (1) is provided with a first lock hole (11), a second lock hole (12), a first extension hole (13) communicating with the first lock hole (11) and a second extension hole (14) communicating with the second lock hole (12); One end of the inner lock body (2) is provided with a first locking tongue (3); the other end of the inner lock body (2) is provided with a second locking tongue (4); one end of the first locking tongue (3) is movably disposed in the first lock hole (11) through the first extension hole (13); one end of the second locking tongue (4) is movably disposed in the second lock hole (12) through the second extension hole (14); The inner lock body (2) is provided with a mechanical lock cylinder (5) and an electric lock cylinder (6) for driving the first lock tongue (3) and the second lock tongue (4) to move; the mechanical lock cylinder (5) is located between the top of the other end of the first lock tongue (3) and the top of the other end of the second lock tongue (4); the electric lock cylinder (6) is located between the bottom of the other end of the first lock tongue (3) and the bottom of the other end of the second lock tongue (4).
2. An improved U-shaped lock according to claim 1, characterized in that: The first locking tongue (3) is provided with a first abutment block (31) at one end; the second locking tongue (4) is provided with a second abutment block (41) at one end; and springs (32) are provided between the first abutment block (31) and the inner lock body (2) and between the second abutment block (41) and the inner lock body (2).
3. An improved U-lock according to claim 1, characterized in that: The first abutment (31) has a first protrusion (33) at one end; the second abutment (41) has a second protrusion (42) at one end; the mechanical lock cylinder (5) has a mechanical protrusion (51) at the bottom; the electric lock cylinder (6) has an electric protrusion (61) at the top; the mechanical protrusion (51) has two sides that abut against the top of the first protrusion (33) and the top of the second protrusion (42) respectively; the electric protrusion (61) has two sides that abut against the bottom of the first protrusion (33) and the bottom of the second protrusion (42) respectively.
4. An improved U-shaped lock according to claim 3, characterized in that: The first boss (33) and the second boss (42) are offset; the mechanical boss (51) and the electric boss (61) are directly opposite each other.
5. An improved U-shaped lock according to claim 3, characterized in that: The mechanical lock cylinder (5) is rotatably mounted on the inner lock body (2); the top of the mechanical lock cylinder (5) is provided with a keyhole (52); the keyhole (52) is exposed on the top of the inner lock body (2).
6. An improved U-shaped lock according to claim 3, characterized in that: The electric lock cylinder (6) is a motor; the output end of the motor is connected to the electric boss (61).
7. An improved U-lock according to claim 5, characterized in that: The top of the inner lock body (2) is detachably connected to a waterproof plug (21) for covering the keyhole (52); The inner lock body (2) is provided with a foolproof surface (22) at its corners; A sealing ring (23) is provided between one end of the first locking tongue (3) and the inner locking body (2) and between one end of the second locking tongue (4) and the inner locking body (2).
8. An improved U-lock according to claim 1, characterized in that: The inner lock body (2) includes a front shell (24) and a rear shell (25) detachably connected to the front shell (24); the rear shell (25) is provided with a waterproof groove (26) around its perimeter; the front shell (24) is provided with waterproof protrusions (27) that cooperate with the waterproof groove (26) around its perimeter.
9. An improved U-lock according to claim 1, characterized in that: The outer lock body (1) has a window (15) on one side; the inner lock body (2) has a first fixing hole (71) on one side; the first fixing hole (71) is exposed in the window (15); the outer lock body (1) has a first screw hole (72) on the other side; a first screw (73) is provided between the first fixing hole (71) and the first screw hole (72); the outer lock body (1) has a second fixing hole (81) on the other side; the inner lock body (2) has a second screw hole (82) on the other side; a second screw (83) is provided between the second fixing hole (81) and the second screw hole (82); a panel (16) is detachably connected to one side of the outer lock in the window (15).
10. An improved U-lock according to claim 5, characterized in that: The inner lock body (2) is provided with a reset switch (91); the mechanical lock cylinder (5) is provided with a trigger block (92); the trigger block (92) is used to abut against the reset switch (91).