Mechanical anti-theft lock
By introducing a double lock-keeping mechanism of through holes and safety pins into the mechanical anti-theft lock, the problem of professional and technical personnel destroying the lock is solved, and the anti-technical opening capability of the lock is improved.
Patent Information
- Application Number
- CN202422601628.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-28
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-10-28
AI Technical Summary
When facing professional and technical personnel, existing mechanical anti-theft locks are at risk of being destroyed and are difficult to effectively protect.
A mechanical anti-theft lock is designed. By adding a through hole and a safety pin in the slot frame at the lower lock tongue, combined with the design of the movable groove and the anti-lock knob, a double lock-keeping mechanism is realized, so that the lower lock tongue cannot rebound when technically unlocked.
The anti-technical opening capability of mechanical anti-theft locks has been enhanced and the protection effect for professional and technical personnel has been improved.
Smart Images
Figure CN223305550U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of anti-theft locks, in particular to a mechanical anti-theft lock. Background Art
[0002] A mechanical anti-theft lock refers to a mechanical lock that uses a mechanical transmission device to control the opening and closing of the lock, and has the functional requirements of anti-drilling, anti-sawing, anti-prying, anti-pulling, anti-impact, and anti-technical opening.
[0003] In 2015, the country promulgated relevant industry standards for the classification of anti-theft locks, which are divided into four levels from low to high: ordinary, A, B, and C.
[0004] However, some professionals with specific skills can still destroy the anti-theft lock through technical means.
[0005] To this end, the applicant has made further improvements. Utility Model Content
[0006] The utility model aims at the deficiencies in the prior art and provides a mechanical anti-theft lock.
[0007] In order to solve the above technical problems, the present invention is solved by the following technical solutions:
[0008] A mechanical anti-theft lock includes a lock body and a slot frame. The lock body is provided with an upper lock tongue and several lower lock tongues. At least one of the lower lock tongues is provided with a first through hole. The slot frame includes an upper lock groove for accommodating the upper lock tongue, a lower lock groove for accommodating the lower lock tongue, and a safety pin adapted to the first through hole. When the safety pin is placed inside the first through hole, the lower lock tongue is locked.
[0009] In the above technical solution, preferably, the groove frame is further provided with a movable groove that movably cooperates with the safety pin, and the safety pin is placed in the movable groove.
[0010] In the above technical solution, preferably, the movable groove is disposed on the outer wall of the groove frame, and a second through hole is further provided inside the movable groove.
[0011] In the above technical solution, preferably, the lock body is further provided with an anti-locking knob movably engaged with the lower lock tongue and a door handle movably engaged with the upper lock tongue.
[0012] In the above technical solution, preferably, when the anti-lock knob is rotated clockwise, the lower lock tongue is expanded outward and placed in the lower lock groove, and the center points of the first through hole and the second through hole are aligned.
[0013] In the above technical solution, preferably, when the door handle and the anti-lock knob are rotated counterclockwise, the upper lock tongue and the lower lock tongue are locked inward.
[0014] In the above technical solution, preferably, the lock body is further provided with a first accommodating cavity for accommodating the upper lock tongue and a second accommodating cavity for accommodating the lower lock tongue.
[0015] In the above technical solution, preferably, a spring is connected to the first accommodating cavity, and the other end of the spring is connected to the upper locking tongue.
[0016] In the above technical solution, preferably, the safety pin includes a pin handle and a pin rod, and at least one end of the pin handle is placed on the outer end of the groove frame.
[0017] In the above technical solution, preferably, the shape of the safety pin is set to be a seven-shaped shape, and the shape of the movable groove is set to be L-shaped.
[0018] The beneficial effect of the utility model is that after the secondary locking is completed internally by the newly added through hole at the lower lock tongue and the newly added safety pin at the lock groove, when a technical unlocking situation is encountered under double locking, the lower lock tongue cannot be fully rebounded. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is a schematic structural diagram of the utility model.
[0020] Figure 2 This is a schematic diagram of the lock body structure of the utility model.
[0021] Figure 3 This is a schematic diagram of the lock frame structure of the utility model.
[0022] Figure 4 This is a schematic diagram of the movable slot structure of the utility model.
[0023] Figure 5 This is a schematic diagram of the safety pin structure of the utility model.
[0024] Figure 6 This is a schematic diagram of the internal structure of the lock body of the utility model.
[0025] 1. Lock body, 11. Upper lock tongue, 12. Lower lock tongue, 13. First through hole, 14. Door handle, 15. Anti-lock knob, 16. First accommodating chamber, 17. Second accommodating chamber, 18. Spring, 2. Slot frame, 21. Upper lock slot, 22. Lower lock slot, 23. Movable slot, 24. Second through hole, 3. Safety pin, 31. Pin rod, 32. Pin handle. DETAILED DESCRIPTION
[0026] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:
[0027] like Figures 1-6As shown, a mechanical anti-theft lock includes a lock body 1 and a slot frame 2. The lock body 1 is provided with an upper lock tongue 11 and a plurality of lower lock tongues 12. There are at least three lower lock tongues 12. The uppermost lower lock tongue 12 is provided with a first through hole 13.
[0028] The groove frame 2 is provided with an upper locking groove 21 for accommodating the upper locking tongue 11 and a plurality of lower locking grooves 22 for accommodating the plurality of lower locking tongues 12 .
[0029] The lock body 1 further includes a door handle 14 , an anti-lock knob 15 , a first accommodating cavity 16 and a plurality of second accommodating cavities 17 , with at least three second accommodating cavities 17 being provided.
[0030] The door handle 14 is movably engaged with the upper lock tongue 11 , the anti-lock knob 15 is movably engaged with the lower lock tongue 12 , the first accommodating cavity 16 is used to place the upper lock tongue 11 , and the second accommodating cavity 17 is used to place the lower lock tongue 12 .
[0031] When the door handle 14 is rotated counterclockwise, the upper lock tongue 11 is locked into the first accommodating cavity 16 ; when the door handle 14 is not rotated, the upper lock tongue 11 is placed in the upper lock groove 21 provided on the groove frame 2 .
[0032] A spring 18 is connected to the inner wall of the first accommodating cavity 16 , and the other end of the spring 18 is connected to the upper locking tongue 11 .
[0033] When the anti-locking knob 15 is not rotated, the lower locking tongue 12 is placed in the second accommodating cavity 17 ; when the single locking knob 15 is rotated clockwise, the lower locking tongue 12 is unfolded and placed in the lower locking groove 22 provided on the groove frame 2 .
[0034] Furthermore, the lower locking tongue 12 is provided with a first through hole 13 adapted to fit the safety pin 3 .
[0035] The safety pin 3 includes a pin rod 31 and a pin handle 32 .
[0036] The groove frame 2 is also provided with a movable groove 23 for lifting and lowering to cooperate with the safety pin 3.
[0037] A second through hole 24 is connected between the movable groove 23 and the uppermost lower locking tongue 12 . The diameter of the second through hole 24 is equal to that of the first through hole 13 .
[0038] When the lower lock tongue 12 is placed in the lower lock groove 22 , the center point of the first through hole 13 and the center point of the second through hole 24 are aligned, and both are adapted to fit the safety pin 3 .
[0039] In this embodiment, when located inside the room, at least a portion of the pin handle 32 is exposed to the outer end of the groove frame 2. By raising and lowering the pin handle 32, the pin rod 31 is placed in the first through hole 13 to complete the secondary locking. In this state, if the anti-lock knob 15 is rotated counterclockwise, the lower lock tongue 13 cannot rotate back into the second accommodating cavity 17.
[0040] Furthermore, in order to prevent the exposed pin handle 32 from accidentally colliding with it, the pin handle 32 can be rotated leftward into the movable groove 23.
[0041] The appearance of the movable groove 23 is set to a mirror image L-shape, and the appearance of the safety pin 3 is set to a seven-shaped shape.
[0042] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.
Claims
1. A mechanical anti-theft lock, characterized in that: The invention comprises a lock body (1) and a slot frame (2), wherein the lock body (1) is provided with an upper lock tongue (11) and a plurality of lower lock tongues (12), at least one of the lower lock tongues (12) is provided with a first through hole (13), and the slot frame (2) comprises an upper lock groove (21) for accommodating the upper lock tongue (11), a lower lock groove (22) for accommodating the lower lock tongue (12), and a safety pin (3) adapted to the first through hole (13), and when the safety pin (3) is placed in the first through hole (13), the lower lock tongue (12) is locked.
2. A mechanical anti-theft lock according to claim 1, characterized in that: The groove frame (2) is further provided with a movable groove (23) that movably cooperates with the safety pin (3), and the safety pin (3) is placed in the movable groove (23).
3. A mechanical anti-theft lock according to claim 2, characterized in that: The movable groove (23) is disposed on the outer wall of the groove frame (2), and a second through hole (24) is further provided inside the movable groove (23).
4. A mechanical anti-theft lock according to claim 3, characterized in that: The lock body (1) is further provided with an anti-locking knob (15) movably engaged with the lower lock tongue (12) and a door handle (14) movably engaged with the upper lock tongue (11).
5. The mechanical anti-theft lock according to claim 4, characterized in that: When the anti-locking knob (15) is rotated clockwise, the lower locking tongue (12) is expanded outward and placed in the lower locking groove (22), and the center points of the first through hole (13) and the second through hole (24) are aligned.
6. The mechanical anti-theft lock according to claim 4, characterized in that: When the door handle (14) and the anti-lock knob (15) are rotated counterclockwise, the upper lock tongue (11) and the lower lock tongue (12) are locked inward.
7. The mechanical anti-theft lock according to claim 6, characterized in that: The lock body (1) is further provided with a first accommodating cavity (16) for accommodating the upper lock tongue (11) and a second accommodating cavity (17) for accommodating the lower lock tongue (12).
8. The mechanical anti-theft lock according to claim 7, characterized in that: A spring (18) is connected to the first accommodating cavity (16), and the other end of the spring (18) is connected to the upper locking tongue (11).
9. The mechanical anti-theft lock according to claim 1, characterized in that: The safety pin (3) comprises a pin handle (32) and a pin rod (31), and at least one end of the pin handle (32) is placed on the outer end of the groove frame (2).
10. A mechanical anti-theft lock according to claim 2 or 3, characterized in that: The safety pin (3) is shaped like a seven-shaped figure, and the movable groove (23) is shaped like an L.