CN2511764Y - an anti-theft lock - Google Patents

Abstract

The utility model relates to a tool to lock technical field refers in particular to a sound construction, safe and reliable's pickproof lock uses. The technical scheme includes that the lock core, the sharp spring bolt assembly, the square spring bolt assembly and the handle are all installed in a lock box, a through hole slightly larger than the sharp spring bolt is formed in the lock box, a stop block is clamped in a corresponding sliding groove, a plurality of anti-theft rods are arranged in the square spring bolt, a tail plate extends out of one end of the square spring bolt, a plurality of clamping grooves and a square shaft are formed in the tail plate, two ends of the square shaft are clamped in the sliding grooves in the lock box, corresponding clamping holes and sliding grooves are formed in two sliding blocks, and the two sliding blocks are overlapped and sleeved on pins on the lock box. After adopting this kind of structure, guaranteed the security performance of tool to lock, and adopted multiple braking structure, made braking performance more superior.

Description

an anti-theft lock

Technical field:

The utility model relates to the technical field of locks, in particular to an anti-theft lock with firm structure and safe and reliable use.

Background technique:

At present, the door mortise locks commonly used on the market can be divided into two parts if divided according to the number of deadbolts: single deadbolt structure and multi-bolt structure locks. Wherein the lock structure of single dead bolt structure is relatively simple, and safety performance and brake performance are all not very good. For the lock with multi-bolt structure, it generally adopts double bolts, so that the safety performance is greatly improved, but due to the increase in the number of bolts, the structure of the lock becomes complicated, and its braking performance is generally difficult to achieve. The dead bolt of the lock can only be used in a single way, and cannot be twisted to realize two-way use. Purpose of the invention:

The purpose of the utility model is to provide a more firm structure, superior braking performance, safe and reliable anti-theft lock.

Invention content:

The utility model is realized through the following technical scheme: the lock surface is fixed at one end of the lock box, the lock box is composed of the lock bottom and the lock cover, and the lock cylinder, the pointed lock tongue assembly, the square lock tongue assembly and the handle are all installed in the lock box . There is a through hole slightly larger than the sharp lock tongue on the lock box, and a stopper is set in the corresponding chute; there are several anti-theft rods inside the square lock tongue; a tail plate extends from one end of the square lock tongue, and the tail plate A plurality of draw-in slots and a square shaft are arranged, and the two ends of the square shaft are stuck in the chute on the lock box. The two sliders are provided with corresponding card holes and slide grooves, and the two sliders are superimposed and sleeved on the pins on the lock box.

After adopting this structure, at first the sharp dead bolt can be rotated in the through hole in the lock box by stirring the block, so that both sides of the lock can be used. Secondly, a number of anti-theft rods are added in the square lock tongue, so that even if the saw blade is used to saw the square lock tongue, the anti-theft rod in the square lock tongue will roll under the action of the saw teeth, making it difficult to saw off and ensuring the safety of the lock. performance. Finally, the utility model adopts multiple braking structures to make the braking performance more superior.

Description of drawings:

Below in conjunction with accompanying drawing, the utility model is further described:

Fig. 1 is a perspective view of the utility model;

Fig. 2 is the plane structural diagram of the utility model;

Fig. 3 is the three-dimensional structural diagram of square dead bolt of the present invention;

Fig. 4 is a three-dimensional structure diagram of the utility model slider 52;

Fig. 5 is a three-dimensional structure diagram of the utility model slider 53;

Fig. 6 is a three-dimensional structure diagram of the lock cylinder of the present invention.

Detailed ways:

See accompanying drawing 1,2,3,4,5,6, the utility model comprises: lock face 1, lock box 2, lock core 3, pointed deadbolt assembly 4, square deadbolt assembly 5 and handle 6. The lock box 2 includes a lock bottom 21 and a lock cover 22, the lock surface 1 is fixed on one side of the lock bottom 21, and the lock bottom 21 and the lock cover 22 are fixed together by screws. Lock core 3, pointed dead bolt assembly 4, square dead bolt assembly 5 and handle 6 are all installed in the lock box 2.

The lock box 2 is provided with through holes 231 , 232 , the through hole 231 is slightly larger than the pointed lock tongue 41 , and the stopper 42 is clamped in the slide groove 24 .

A number of anti-theft rods 511 are arranged in the square lock tongue 51, one end of which extends out of the tail plate 512, and the tail plate 512 is provided with a card slot 513 and a side shaft 514, and the two ends of the square shaft 514 are clamped on the lock box 2 in the chute 26.

The sliding blocks 52 , 53 are provided with corresponding locking holes 521 , 531 and slide grooves 522 , 532 , and the sliding blocks 52 , 53 are overlapped and socketed on the pins on the lock box 2 . There is a small boss 533 on the back side of the slide block 53 .

The pointed dead bolt 41 is fixedly connected to one end of the connecting rod 43, the other end of the connecting rod 43 is fixedly connected with a baffle plate 44, one end of the spring leaf 45 is fixed on the pin of the lock box 2, and the other end resists the outside of the baffle plate 44; The dial block 61 is stuck in the lock box 2, and a handle hole 62 is provided in the dial block 61, the dial ring 63 is sleeved on the dial block 61, and the dial block 61 has a depressing tongue 611 and a blocking tongue 612, the baffle plate 44 is tightly pressed on the depressing tongue 611 under the elastic force of the spring leaf 45 . The torsion spring 64 is sleeved on the pin on the lock box 2, and one end leans against the pin on the lock box 2, and the other end leans against the small dial 613 of the dial 61, and the dial 61 is pressed against the torsion spring 64 by elastic force. Under the action, the depressing tongue 611 is tightly pressed on the pin 25 . A dial sleeve 614 is sleeved on the small dial 613 of the dial 61 to ensure that the small dial 613 will not be damaged due to long-time friction.

One end of the dial 54 is connected to the dial ring 63 , and the other end is sleeved on the pin 515 on the clamping plate 512 through the sliding slot 541 . The torsion spring 55 is sleeved on the pin on the lock box 2, and the two ends of the torsion spring 55 are pressed against the slide blocks 52, 53 respectively.

Lock core 3 is plugged in the lock hole 33, and is fixed on the lock box 2 by bolts, and a toggle tongue 31 is affixed on the lock core shaft in the lock core 3, and copper courage 32 is affixed at an end at rotating shaft.

When using the utility model, at first determine the left and right sides of the door, and the side of the sharp bolt 41 that has a radian should correspond to the closing direction of the door, so that the sharp bolt 41 can be retracted into the lock box 2 under the pressure of the lock plate 7, if The curved side of the pointed lock tongue 41 is opposite to the desired direction, that is, the direction of the lock does not match the direction of the door, then the lock box 2 is turned upside down, the stopper 42 is dropped, and the pointed lock tongue 41 is completely compressed into the lock box 2 At this time, the sharp lock tongue 41 and the baffle plate 44 are just in the through holes 231, 232. After the sharp lock tongue 41 is rotated 180° by hand, the lock box 2 is turned back, and the stopper 42 is restored to its original position, so that The lock is installed.

After installation, when the square deadbolt assembly 5 does not participate in work, that is, the square deadbolt 51 is fully retracted in the lock box 2, the utility model relies on the pointed deadbolt assembly 4 to realize the locking of doors and windows. In the process of closing the door, the lock plate 7 gradually presses the pointed lock tongue 41 into the lock box 2 along the arc surface of the pointed lock tongue 41 until the door is completely closed, and the pointed lock tongue 41 is facing the lock plate 7 at this moment. On the upper lock hole 71, the pointed deadbolt 41 is pushed into the upper lock hole 71 under the elastic force of the spring leaf 45, so the door is locked. When it needs to be opened, turn the handle 6 clockwise, and the handle 6 will drive the shift block 61 to rotate together, so that the tongue 611 of the shift block 61 will push the baffle 44 to move, and at the same time, driven by the baffle 44, the pointed lock tongue 41 is pulled in the lock box 2, so that doors and windows can be opened. After the handle 6 is released, the shifting block 61 is pressed back to its original position under the elastic force of the torsion spring 64 .

When the square bolt assembly 5 participates in the work, the double locking and braking of the present invention can be realized. The square lock tongue assembly 5 mainly drives the dial tongue 31 to rotate together through the rotation of the lock core shaft in the lock cylinder 3, uses the dial tongue 31 to toggle the tail plate 512 to realize the double locking of the door, and realizes the locking through the sliders 52 and 53. motion effect. And the rotation of the lock core shaft can be realized in two ways: the one is to rotate the lock core shaft with the key corresponding to the lock core 3; As shown in FIG. 2 , the square lock tongue 51 is fully stretched out at this moment, and is inserted into the lock hole 72 on the lock piece 7 . The sliders 52, 53 are pressed down under the elastic force of the torsion spring 55, so that the square shaft 514 falls into a groove of the clamping holes 521, 531, and the small boss 533 on the slider 53 also falls into the groove on the tail plate 512. In a card slot 513, the square deadbolt assembly 5 is in a braking state. Use a key or rotate the copper gall 32 to make the lock core shaft of the lock cylinder 3 rotate clockwise. When it rotates to a certain position, the dial tongue 31 presses the sliders 53 and 52 sequentially, and the sliders 53 and 52 are here Move upwards along the chute 532, 522 under pressure, so that the square shaft 514 breaks away from the groove in the clamping hole 521, 531, and the small boss 533 on the slider 53 also breaks away from the clamping groove 513 on the clamping plate 512. At this time, the tongue 31 continues to rotate, and at the same time, move the tooth-shaped slot at the lower end of the tail plate 512 to move the square bolt 51 into the lock box 2 until the tongue 31 leaves, at this time, the sliders 52 and 53 recover under the elastic force of the torsion spring 55 To the original position, the square shaft 514 falls into a groove of the clamping holes 521 and 531 at the same time, and the small boss 533 also falls into a clamping groove 513 on the tail plate 512 . Recirculate once like this, only shrink in the lock box 2 fully to square dead bolt 51. Simultaneously because one end of the dial 54 is sleeved on the pin 515 on the tail plate 512 through the chute 541, so the dial 54 also moves inwardly, and the lower end of the dial 54 is also in the trajectory of the tongue 31 rotation at this time, At this time, continue to rotate the lock core shaft clockwise, the dial tongue 31 will push the dial 54 to move upward, the dial ring 63 will rotate clockwise under the push of the dial 54, and the tongue 631 on the dial ring 63 will push the baffle plate 44 to move, Under the drive of baffle plate 44, pointed dead bolt 41 is pulled in the lock box 2, and now two dead bolts of the present utility model all shrink in the lock box 2, so the door just can be opened. In the same way, the locking of the anti-theft lock can be realized by turning the lock core shaft of the lock core counterclockwise.

Claims (5)

1, a kind of theftproof lock, comprise: locking face (1), lock box (2), lock core (3), sharp dead bolt assembly (4), Square lock bolt assembly (5) and handgrip (6), lock box (2) was made up of the lock end (21) and locking closure (22), locking face (1) is fixed on one side of the lock end (21), lock core (3), sharp dead bolt assembly (4), Square lock bolt assembly (5) and handgrip (6) all are installed in the lock box (2), it is characterized in that: offer through hole (231), (232) on the lock box (2), through hole (231) is slightly larger than sharp dead bolt (41), and block (42) is fastened in the chute (24); Be provided with some antitheft rods (511) in the Square lock bolt (51); One end of Square lock bolt (51) extends a tailgate (512), have some draw-in grooves (513) on the tailgate (512) and be provided with a square shaft (514), and the two ends of square shaft (514) are fastened in the chute (26) on the lock box (2), slide block (52), (53) offer corresponding hole clipping (521), (531) and chute (522), (532), and slide block (52), (53) are by on chute (522), (532) superimposed pin that is socketed on the lock box (2).

2, a kind of theftproof lock according to claim 1, it is characterized in that: sharp dead bolt (41) is fixed in an end of connecting rod (43), the other end of connecting rod (43) is connected with baffle plate (44), one end of spring leaf (45) is fixed on the pin of lock box (2), and the other end is kept out the outside in baffle plate (44); Shifting block (61) is fastened in the lock box (2), and offer a handle hole (62) in the shifting block (61), ring (63) is socketed on the shifting block (61), have one to press a tongue (611) and a retaining tongue (612) on the shifting block (61), baffle plate (44) is being pressed under spring leaf (45) the elastic force effect on the pressure tongue (611), torsion spring (64) is socketed on the pin on the lock box (2), and an end is pulled on the pin that leans against on the lock box (2), the other end is pulled on the little shifting block (613) that leans against shifting block (61), shifting block (61) makes and presses tongue (611) to be pressed on the pin (25) under torsion spring (64) elastic force effect.

3, a kind of theftproof lock according to claim 1 and 2 is characterized in that: an end of dialling bar (54) is connected on the ring (63), and the other end is socketed in by chute (541) on the pin (515) on the tailgate (512) of Square lock bolt (51).

4, a kind of theftproof lock according to claim 1 is characterized in that: torsion spring (55) is socketed on the pin on the lock box (2), and the two ends of torsion spring (55) are pressed against slide block (52), (53) top respectively.

5, a kind of theftproof lock according to claim 2 is characterized in that: the little shifting block (613) of shifting block (61) is gone up socket one shifting block cover (614).

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