CN2199282Y - Crab claw bolt theft-prevention lock - Google Patents

Abstract

The utility model relates to a crab-claw bolt anti-theft lock. The left and right sides of one surface connected by a bolt body and a bolt plate are respectively provided with one grooves. Each groove is riveted and embedded with a crab-claw hook. When the lock is closed, the bolt springs out of a big shell. At the moment, the crab-claw hooks in the two grooves in the bolt body respectively spring obliquely toward left and right and firmly hook a small shell. The other end of the crab-claw hooks tightly hooks the inner wall of the big shell. When the lock is opened, the bolt returns to the big shell. At the moment, the two crab-claw hooks respectively return to the two grooves. The utility model has the advantages of firmness, reliability, shock resistance, good anti-prying performance, good anti-dismounting performance, good anti-theft, good anti-opening with foreign objects, convenient fabrication and lower cost. The crab-claw bolt anti-theft lock is suitable as various door locks and is favorable to maintain the social order if popularized to use.

Description

Crab claw bolt theft-prevention lock

The utility model relates to a kind of crab claw tongue theftproof lock.Especially adapt to the door lock of making garden gate, biparting unlatching door, secret chamber door, bank's door, Lun Kumen, security door, rolling-gate, moving door and common house door.

The dead bolt of Gong Ying all kinds of locks is commonly the monocline tongue in the market, though occurred two tongue locks in recent years; But always do not break away from the textural association that dead bolt is oblique tongue or cuboid tongue, the lock of this class is because it is simple in structure, and is very easy in sled, stolen and opened by foreign matter.

The purpose of this utility model is for strengthening theftproof performance, and a kind of structure of design is special, cooperates cleverly, and difficulty or ease are prized, stolen and opened and the impact-resistant crab claw tongue theftproof lock that has crab claw shape hook by foreign matter.

The purpose of this utility model realizes like this, lock of the present utility model is by big shell, little shell, hyoplastron, tapered end is dialled peach, tapered end, the spoon door, base plate is dialled peach, handle, stop button and dead bolt are formed, and there are two 90 ° of bending angles on the top of hyoplastron, the structure of dead bolt is: a dead bolt body that places the hyoplastron top, respectively be equipped with a groove in its left and right edges that are connected this one side with hyoplastron, inlay a crab claw hook in each groove, hook is to outwardly, each rivets the lower end of each crab claw hook with a pin and dead bolt body, after shutting action, when dead bolt ejects big shell, the crab claw hook in tongue body two grooves simultaneously toward about tiltedly ejection, end hook firmly hooks little shell on the two outer crab claw hooks that eject, simultaneously, two crab claw hook lower ends hook hooks big shell inwall, and the bent angle face on hyoplastron top is tightly withstood at the following base angle of crab hook, this moment, no matter you used any instrument, even unload the latch (referring to double door) of Xiamen, also can't pry open this lock, play the pick-proof of this lock, anti-unloading, antitheft effect.After unlocking action, when dead bolt was regained big shell, two crab claw hooks were respectively got back in two grooves about original tongue body.For further increasing function, improve pick-proof, antitheft reliability, can increase an oblique tongue that has safeties again on crab claw tongue structure of the present invention side, become two tongue locks (an oblique tongue, a crab claw tongue) that have crab claw tongue, tapered end, key can adopt cross, because of the tartar data of cross-key big, secrecy height, foreign matter extremely are difficult for opening, especially suitable particular environment, as secret chamber, bank, warehouse, Theft-proof iron door etc. are installed and used.Also can adopt a word locking cam for reducing cost, and can mix safe antitheft chain and inside and outside handle.

Crab claw tongue theftproof lock of the present utility model, easy to make, cost is low, and is sturdy and durable, safe and reliable, pick-proof, anti-unloading, shock-resistant, performances such as antitheft anti-foreign matter unlatching are good, are the elaboration in the lockset in fact, and promoting the use of can favourable maintaining social unity.

Details are as follows to structure of the present utility model with reference to the accompanying drawings below:

Fig. 1 the utility model embodiment one: the crab claw tongue theftproof lock of folk prescription ligulate;

Fig. 2 the utility model embodiment two: the crab claw tongue theftproof lock of monocline ligulate;

Fig. 3 the utility model embodiment three: the two tongue theftproof locks of cross-key that have crab claw tongue;

Fig. 4 is the lateral view of two tongue theftproof locks shown in Figure 3.

The utility model is by big shell 1, little shell 2, hyoplastron 3, tapered end are dialled and are chosen 20, inner lock head 29, spoon door 27, outer tapered end (figure is slightly), base plate 28, base plate are dialled and are chosen 26, handle 21, stop button 24 and dead bolt 31 are formed, and there are two 90 ° of bent angles on hyoplastron 3 tops, and the structure of dead bolt 31 is a dead bolt body 4 that places the hyoplastron top, respectively be equipped with a groove at its right and left that is connected this one side with hyoplastron 3, inlay a crab claw hook 5 in each groove, hook is to outwardly, and each rivets the lower end of each crab claw hook 5 with a pin 16 and dead bolt body 4, two crab claw hooks 5 are symmetrical, and shape is

Shape, wherein ∠ B ∠ C is 30 °～95 °.When shutting, tapered end drives tapered end and dials and choose 20 and make slide plate 7 actions, and slide plate 7 drives hyoplastrons 3 toward the action of big shell limits, and dead bolt 31 and hyoplastron 3 usefulness side tongue pins 6 rivet, so dead bolt 31 ejects outside the big shell 1 thereupon, enters little shell 2; Because connection inclined design between the angle that above-mentioned ∠ B ∠ C is specific and two jiaos, can make two crab claw hooks 5 in little shell 2 toward about tiltedly eject, and firmly catch on the inward flange of little shell 2, the other end of two crab claw hooks 5 hooks the inwall that tightly hooks big shell 1 simultaneously, and the ∠ E point of two crab claw hooks 5 presses closer the flexure plane of hyoplastron 3; Thereby reach insurance of the present utility model, safe functioning.

For an embodiment (referring to Fig. 3, Fig. 4) who has the two tongue theftproof locks of cross-key of crab claw tongue.The dead bolt of this lock has two: one is dead bolt 31(crab claw tongue), one is the oblique tongue of dead bolt 15(), tiltedly tongue portion is by dead bolt 15, oblique tongue rod 19, handle 21, cottor pin 22, pagoda spring 23, stop button 24, safety slide 11, insurance are dialled plate 12, relief spring 13 and safety slide post nail 14 and are formed, crab claw tongue portion is by rectangular tongue 4, crab claw hook 5, hyoplastron 3, square tongue pin 6, slide plate 7, slide block cover 8, skateboard spring 9 and hyoplastron post nail 10 are formed; Dial its an end cover of plate 18 and go here and there on oblique tongue rod 19, and the other end is followed closely 17 and is riveted on the hyoplastron 3 with dialling sheet-pile, makes a disposable continuous action of key, two dead bolts all can be taken in the big shell 1, reaches the purpose of unblanking.Fig. 3, shown in Figure 4 be to adopt cross-key inner lock head 29 and outer tapered end (figure slightly), hang on the spoon circle 25 be cross key 30(in addition: also can select low word locking cam of valency or the outer tapered end of list for use).

Claims (2)

1, a kind of crab claw tongue theftproof lock, by big shell (1), little shell (2), hyoplastron (3), tapered end is dialled peach (20), inner lock head (29), spoon door (27), outer tapered end base plate (28), base plate is dialled peach (26), handle (21), and stop button (24) and dead bolt (31) are formed, there are two 90 ° of bending angles on hyoplastron (3) top, the structure of dead bolt (31) respectively is equipped with a groove for placing a dead bolt body (4) on hyoplastron (3) top at its right and left that is connected this one side with hyoplastron (3), inlays a crab claw hook (5) in each groove, hook is to outwardly, and each rivets the lower end of each crab claw hook (5) with a pin (16) and dead bolt body (4).

2, crab claw tongue theftproof lock according to claim 1 is characterized in that two crab claw hooks (5) are symmetrical, and shape is

Shape, wherein ∠ B ∠ C is between 30 °～95 °.

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