CN201165785Y - Spiral double-clip lock core - Google Patents

Abstract

The utility model relates to a spiral double card lock core, which comprises an outer casing, a bushing, an inner core movably arranged in the bushing, a spring, and a lower marble; wherein a row of spiral guiding grooves are arranged in the inner cores, and the quantity of the spiral guiding grooves is identical with the quantity of the inner cores, the direction of the spiral guiding grooves is vertical to the direction of the inner cores, and the two ends of the spiral guiding grooves are respectively communicated with the key hole and the inner core hole; a starting and locating slot is arranged on the inner core, a starting and locating lever is positioned in the starting and locating slot by being passed through the bushing, the shape of the lower marble is matched with the shape of the outer surface of the inner core hole, which presents a taper shape. The spiral double card lock core has the advantages of reasonable and compact structure, good, secure and reliable anti-theft performance, convenient operation and wide application, and thereby the lock core can be used as a variety of anti-theft locking device.

Description

The two kayser cores of spiral

Technical field

The utility model relates to a kind of lock core, says to relate to a kind of lock cylinder with having more.

Background technology

Along with China's rapid development of economy and the people's living standard steadily improves, its material wealth is constantly abundant, so the demand of theftproof lock is also correspondingly strengthened.The lock core of the anti-theft cylinder lock of prior art, usually adopt cross, in-line, circle, U type etc., all be provided with spring and pellet shot from a slingshot in the inner chip hole of these lock cores, in key insertion keyhole, the pellet shot from a slingshot in its inner chip hole is urged, and the direction of past spring moves, thereby eliminated the obstacle that inner core rotates, lock promptly is opened.All be exposed to the outside but the defective one of these locks is pellets shot from a slingshot, be easy to be pried open by the thief or open with destructive method; The 2nd, the pellet shot from a slingshot lower end of these locksets is positioned at keyhole, and the robber is easy to insert keyhole with particular tool, and mobile pellet shot from a slingshot arrives certain location, thereby the pirate of the open success, so theftproof performance is poor, security performance is bad.

Summary of the invention

The utility model is at the problems referred to above, and its goal of the invention is to provide a kind of being difficult for to steal sled, and theftproof performance is good, the two kayser cores of safe and reliable spiral.

The utility model solves the problems of the technologies described above by following technical proposals:

The two kayser cores of a kind of spiral, comprise shell, lining, be movably arranged on the upper and lower pellet shot from a slingshot of inner core, spring on the lining, inner core is provided with a row's inner chip hole and a keyhole, in-core is provided with 3～5 helical guide grooves in described, the quantity of helical guide groove is identical with the quantity of inner chip hole, the direction of helical guide groove is vertical with keyhole, and its two ends communicate with inner chip hole with keyhole respectively; Also be provided with a unlatching locating slot on inner core, a unlatching backstay passes lining, puts into and opens locating slot.

The described external surface of pellet shot from a slingshot down is conical, and the shape of inner chip hole is complementary with the shape of the external surface of following pellet shot from a slingshot.

In sum, because the utility model has been made many helical guide grooves on the core within it, following pellet shot from a slingshot is tapered, its underpart can not be stretched in the keyhole, its beneficial effect is: one, cannot see pellet shot from a slingshot from the outside, so bump less than pellet shot from a slingshot with the stealing instrument, increased the difficulty of stealing; Have and to prevent the violence unlatching with imitating; The 2nd, the precautionary technology unlatching effectively of the width of guide groove; The 3rd, many helical guide grooves are arranged, all be provided with pellet shot from a slingshot in every helical guide groove, possess independent function of taking precautions against pirate of the open.

Description of drawings

Fig. 1 is the structural representation that lock core of the present utility model inserts key;

Fig. 2 is the A-A sectional view of the inner core of Fig. 1.

1-shell, 2-lining, 3-dead bolt hole, 4-dead bolt, 5-inner core, 6-open locating slot, 7-opens pellet shot from a slingshot, 12-helical guide groove, 13-bush hole, 14-inner chip hole, 15-spoon tooth, 16-key, 17-keyhole under backstay, 8-capping, 9-spring, the last pellet shot from a slingshot of 10-, the 11-.

The specific embodiment

Be further described this reality is novel below in conjunction with accompanying drawing.

As shown in Figure 1, 2, the two kayser cores of a kind of spiral comprise shell 1, lining 2 and inner core 5.Lining 2 is fixed on the shell 1, and inner core 5 is movably arranged in the lining 2, and a dead bolt hole 3 is set on shell 1 and the lining 2, and the dead bolt 4 on the inner core 5 stretches in the dead bolt hole 3.Lining 2 is provided with row's bush hole 13, and pack in each bush hole 13 spring 9 and last pellet shot from a slingshot 10 are sealed the upper end of all bush hole 13 with a capping 8.Relevant position at inner core 5 and lining 13 is provided with inner chip hole 14, each inner chip hole is provided with a following pellet shot from a slingshot 11 for 14 li, the shape of the external surface of following pellet shot from a slingshot 11 and inner chip hole 14 is complementary, it all is taper, the bottom of following pellet shot from a slingshot 11 can not stretch in the keyhole 17, therefore, theftproof performance is good, and the length of following pellet shot from a slingshot 11 is fixed according to the length of spoon tooth 15.The helical guide groove 12 of setting and inner chip hole 14 equal numbers is 4 as Fig. 1 in inner core 5.One end of helical guide groove 12 communicates with keyhole 17, and the other end communicates with inner chip hole 14, and helical guide groove 12 is vertical with keyhole 17.After key 16 inserted keyholes 17, its spoon tooth 15 can be from keyhole 17 along helical guide groove 12 goes to inner chip hole 14, promptly revolved to turn 90 degrees, and then a spoon tooth 15 will descend pellet shot from a slingshot 11 outwards push up, will go up pellet shot from a slingshot 10 ejector sleeve holes 13, then lock core unlatching.Be rotated further key 16, then inner chip hole 14 misplaces with bush hole 13, and then key 16 can take out.On inner core 5, be provided with a unlatching locating slot 6, a unlatching backstay 7 passes lining 2, puts into and opens locating slot 6, has accounted for 1/4 of whole inner core 5 radial sections owing to open locating slot 6, so open the effect of backstay 7, the one, locking inner core 5 moving axially with respect to lining 2; The 2nd, allow inner core 5 with respect to lining 2 half-twists.

Claims (2)

1, the two kayser cores of a kind of spiral, comprise shell (1), lining (2), be movably arranged on inner core (5), spring (9), the upper and lower pellet shot from a slingshot (10,11) of lining (2), inner core (5) is provided with a row's inner chip hole (14) and a keyhole (17), it is characterized in that: in described inner core (5), be provided with 3～5 helical guide grooves (12), the quantity of helical guide groove (12) is identical with the quantity of inner chip hole (14), the direction of helical guide groove (12) is vertical with keyhole (17), and its two ends communicate with inner chip hole (14) with keyhole (17) respectively; Also be provided with a unlatching locating slot (6) on inner core (5), a unlatching backstay (7) passes lining (2), puts into and opens locating slot (6).

2, the two kayser cores of spiral according to claim 1 is characterized in that: the described external surface of pellet shot from a slingshot (11) down is conical, and the shape of inner chip hole (14) is complementary with the shape of the external surface of following pellet shot from a slingshot (11).

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