CN2493708Y - Built-in mechanical type theft-proof door lock - Google Patents

Abstract

A built-in mechanical type theft-proof door lock comprises a lock core, three lock tongues, a large carriage, a small carriage, a shift lever, a gear, an upper jam plate, a lower jam plate, a lock shell, three springs, two fork-levers, a lock card, a hitting rod and a lock lever; wherein two lock tongues are fixed on the large carriage and one lock tongue is arranged on the small carriage; a locking key and two connectors are arranged on the gear; the gear is cooperated with the large carriage and the upper and lower jam plates. Compared with mechanical type theft-proof door lock in existence, the built-in mechanical type theft-proof door lock is characterized in that the volume is small and the structure is simple; the built-in mechanical type theft-proof door lock is arranged on the theft-proof door, thus having no effect on the whole appearance of the theft-proof door and enhancing the safety of the theft-proof door lock.

Description

Hidden mechanical formula safe-guard door lock

The utility model belongs to lock technology field, particularly a kind ofly is applicable to employed hidden mechanical formula safe-guard door lock on the security door.

The prior mechanical safe-guard door lock generally is to adopt the conventional door lock structure, and its volume is bigger, and complex structure is contained on the security door, has influenced the overall appearance of security door.

Task of the present utility model is bigger at the existing above-mentioned volume of prior mechanical safe-guard door lock, and baroque weak point provides a kind of hidden mechanical formula safe-guard door lock that can not influence the moulding of security door overall appearance.

Task of the present utility model is finished in the following way: hidden mechanical formula safe-guard door lock comprises lock core, dead bolt, saddle, driving lever, gear, following card, lock housing, catch, spring lever, shift fork A, upper clamp slice, pintle hook lock, shift fork B, touching lever, locking key, securing rod, upper slide rest, and wherein shift fork A is contained on the lock core; Match with the locating slot B on the saddle in the protrusion position at gear one end center, the locking key on the gear matches with lock slots on the saddle; 2 terminal B on the gear match with sliding tray on following card and the upper clamp slice respectively, gear, link together by the steady pin hinge between card, the upper clamp slice down, and the steady pin two ends are fixed on the lock housing; Pintle hook lock matches with shift fork B, and they link together with the lock housing hinge respectively; Locating slot A on the upper slide rest is enclosed within on the alignment pin, and alignment pin is fixed on the lock housing; Spring B one end and upper slide rest join, and the spring B other end withstands on the lock-shell lining; Securing rod matches with shift fork B, and securing rod can pass in and out flexible.Safe-guard door lock of the present utility model is housed in use, rotational lock core drives shift fork A and rotates, thereby gear is rotated, by the locking key on the gear and 2 terminal B circular motion is converted to rectilinear motion, realizes the switching of door lock thereby driving saddle and following card and upper clamp slice stretch.After the door lock closure, automatically lock, by the effect of 2 terminal B and following card and upper clamp slice sliding tray on the gear, realize the self-locking of door lock simultaneously by the lock slots on locking key on the gear and the saddle.At closing time, door lock can be sealed automatically.Drive terminal A by rotating shift fork B, can make dead bolt flexible.Press securing rod, then securing rod inserts among lock hole A or the lock hole B, and then the lockable upper slide rest is flexible.

The utility model is compared with the prior mechanical safe-guard door lock, it is little to have volume, characteristics simple for structure, and the utility model is contained in can not influence the moulding of security door overall appearance on the security door, and the safety that has improved safe-guard door lock, the possibility that has prevented that safe-guard door lock from being prized and dialled.The utility model is particularly suitable as a kind of door lock that is used on the security door.

Description of drawings:

Fig. 1 is the structural representation of hidden mechanical formula safe-guard door lock.Wherein (1) represents dead bolt; (2) expression guide pin bushing; (3) expression saddle; (4) expression driving lever; (5) expression gear; (6) expression steady pin; (7) card under the expression; (8) expression lock housing; (9) expression spring A; (10) expression catch; (11) expression spring lever; (12) expression shift fork A; (13) expression locating slot A; (14) expression spring B; (15) expression upper slide rest; (16) expression upper clamp slice; (17) expression pintle hook lock; (18) expression lock hole A; (19) expression terminal A; (20) expression shift fork B; (21) expression screw; (22) expression lock hole B; (23) expression spring C; (24) expression touching lever.

Fig. 2 is the structural representation of following card.Wherein (25) represent sliding tray A.

Fig. 3 is the structural representation of upper clamp slice.Wherein (26) represent sliding tray B.

Fig. 4 is the structural representation of planker.Wherein (27) represent locating slot B; (28) expression lock slots.

Fig. 5 is the structural representation of gear.Wherein (29) represent locking key; (30) expression terminal B.

Fig. 6 is the A-A sectional view of Fig. 1.Wherein (31) represent securing rod.

Below in conjunction with accompanying drawing, the utility model is described in further detail by embodiment.

Hidden mechanical formula safe-guard door lock comprises lock core, 3 dead bolts (1), saddle (3), driving lever (4), gear (5), following card (7), lock housing (8), spring A (9), catch (10), spring lever (11), shift fork A (12), spring B (14), upper slide rest (15), upper clamp slice (16), pintle hook lock (17), terminal A (19), shift fork B (20), spring C (23), touching lever (24), locking key (29), securing rod (31).Wherein, 2 dead bolts (1) are fixed on the saddle (3), and 1 dead bolt (1) is located on the upper slide rest (15), is equipped with dead bolt guide pin bushing (2) on 3 dead bolts (1).Shift fork A (12) is contained on the lock core.Match with locating slot B (27) on the saddle (3) in the protrusion position at gear (5) one end centers; Gear (5) wherein the locking key (29) on the teeth match with lock slots (28) on the saddle (3); 2 terminal B (30) on the gear (5) match with sliding tray A (25) and sliding tray B (26) on following card (7) and the upper clamp slice (16) respectively.Link together by steady pin (6) hinge between gear (5), following card (7) and the upper clamp slice (16), steady pin (6) two ends are fixed on the lock housing (8).Pintle hook lock (17) matches with shift fork B (20), and they link together with lock housing (8) hinge respectively.Locating slot A (13) on the upper slide rest (15) is enclosed within on the alignment pin, and alignment pin is fixed on the lock housing (8).On upper slide rest (15), have lock hole A (18) and lock hole B (22).Spring A (9) is enclosed within on the spring lever (11), and spring A (9) one ends are fixed on the spring fixed hole on the gear (5), and spring A (9) one ends withstand on the catch (10) that is located at spring lever (11) afterbody.Spring B (14) one ends and upper slide rest (15) join, and spring B (14) other end withstands on the inwall of lock housing (8).Securing rod (31) matches with shift fork B (20), and securing rod (31) can pass in and out flexible.Touching lever (24) is located at dead bolt (1) middle part on the upper slide rest (15), and spring C (23) is enclosed within the afterbody of touching lever (24), is provided with screw (21) on the tail end of touching lever (24).

Claims (4)

1, a kind of hidden mechanical formula safe-guard door lock, this safe-guard door lock comprises lock core, 3 dead bolts (1), saddle (3), driving lever (4), gear (5), following card (7), lock housing (8), shift fork A (12), upper slide rest (15), upper clamp slice (16), pintle hook lock (17), shift fork B (20), securing rod (31), wherein 2 dead bolts (1) are fixed on the saddle (3), 1 dead bolt (1) is located on the upper slide rest (15), shift fork A (12) is contained on the lock core, match with locating slot B (27) on the saddle (3) in the protrusion position at gear (5) one end centers, pintle hook lock (17) matches with shift fork B (20), they link together with lock housing (8) hinge respectively, securing rod (31) matches with shift fork B (20), it is characterized in that on gear (5) one teeth, being provided with locking key (29), this locking key (29) matches with lock slots (28) on the saddle (3), on gear (5), be provided with 2 terminal B (30), (30 match with sliding tray A (25) and sliding tray B (26) on following card (7) and the upper clamp slice (16) respectively these 2 terminal B, on upper slide rest (15), have lock hole A (18) and lock hole B (22), spring A (9) is enclosed within on the spring lever (11), spring A (9) one ends are fixed on the spring fixed hole on the gear (5), spring A (9) one ends withstand on the catch (10) that is located at spring lever (11) afterbody, spring B (14) one ends and upper slide rest (15) join, and spring B (14) other end withstands on the inwall of lock housing (8).

2, hidden mechanical formula safe-guard door lock according to claim 1 is characterized in that linking together by steady pin (6) hinge between gear (5), following card (7) and the upper clamp slice (16), and steady pin (6) two ends are fixed on the lock housing (8).

3, hidden mechanical formula safe-guard door lock according to claim 1 is characterized in that dead bolt (1) middle part on upper slide rest (15) is provided with touching lever (24), is provided with spring C (23) at the afterbody of touching lever (24).

4, hidden mechanical formula safe-guard door lock according to claim 1 is characterized in that being equipped with dead bolt guide pin bushing (2) on 3 dead bolts (1).

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