CN104831999A

CN104831999A - Key with pits provided with side walls for anti-theft lock

Info

Publication number: CN104831999A
Application number: CN201510279135.0A
Authority: CN
Inventors: 曹云周
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-05-27
Filing date: 2015-05-27
Publication date: 2015-08-12

Abstract

The invention discloses a key with pits provided with side walls for an anti-theft lock. The key comprises a key body and a key handle. The portion, close to a key rod, of the key body is provided with at least two pits matched with anti-theft pins of the anti-theft lock. The depth of the pits exceeds the center line of the thickness of the key body. The side walls are reserved on the two sides of the pits. The key is simple in structure, solid and durable, and can jack up the anti-theft pins inside the anti-theft lock on the condition of not being completely inserted into a lock cylinder due to the fact that the key body is provided with at least two pits, the lock cylinder can be freely rotated when the anti-theft pins completely fall into the pits, and other foreign matter is effectively prevented from rotating the lock cylinder due to the fact that the depth of the pits exceeds the center line of the thickness of the key body. Due to the fact that the side walls are reserved on the two sides of the pits, no material cost is added, and meanwhile the key rigidity and stress degree are improved.

Description

For the key of the pit band abutment wall of theftproof lock

Technical field

The present invention relates to field of lockset, particularly relate to a kind of key of the pit band abutment wall for theftproof lock.

Background technology

The structure of existing a kind of common theftproof lock is: it comprises lock body, be contained in the lock cylinder in lock body rotationally, lock core is axially having keyhole, lock core and lock body are provided with pellet and spring, or locking plate and spring are set, to limit the mutual rotation between lock core and lock body, the head end of lock core has radial through vallecular cavity, lay respectively at keyhole both sides and diametrically arrange, have at least a main anti-theft pin and secondary anti-theft pin to be placed in vallecular cavity and be slidably matched, the back-moving spring matched is provided with between lock core with each anti-theft pin, the inner side of each anti-theft pin short transverse is provided with antitheft raised line, the width of keyhole contacts each other.The antitheft performance of this lockset is strong, security reliability good.First the key opening this theftproof lock by least two anti-theft pin jack-up of lock core inside, then all must advance among lock core and lock core could be rotated, thus opened by this theftproof lock.Normal key (or master key of burglar's use) is inserted in keyhole, even if by least two of this theftproof lock anti-theft pin jack-up, outer end due to anti-theft pin is stretched out lock core external diameter and can not rotary locking cylinder, in addition, because at least two anti-theft pins of this theftproof lock have certain gravity, normal key (or burglar use master key) is due to comparatively thin, and there will be unavoidably in use procedure cannot jack-up anti-theft pin be even disconnected cuts in lock core.

Therefore need to provide a kind of key being applicable to this theftproof lock to solve the problems referred to above.

Summary of the invention

Technical problem to be solved by this invention is to provide a kind of key of the pit band abutment wall for theftproof lock, easily can open theftproof lock and durable.

For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: the key providing a kind of pit band abutment wall for theftproof lock, comprise spoon body and the shank of the key, at spoon body, the position of spoon bar is provided with at least two pits matched with the anti-theft pin of theftproof lock, the degree of depth of pit all exceedes a spoon center line for body thickness, leaves abutment wall in the both sides of pit.

In a preferred embodiment of the present invention, described pit shifts to install the tow sides at spoon body, and shape is inverted trapezoidal.The anti-theft pin structure of the position of pit and structure and theftproof lock matches, and greatly strengthens the working strength of this key.

In a preferred embodiment of the present invention, the width of abutment wall is at 0.5-4mm.By arranging the larger abutment wall of width in the both sides of pit, while not increasing material cost, improve the hardness of key and stressed degree.

In a preferred embodiment of the present invention, spoon bar is provided with inner lock core matches with theftproof lock groove, projection, sawtooth.Not only match with the lock core structure of theftproof lock inside, and too increase the uniqueness of this key.

In a preferred embodiment of the present invention, the shank of the key offers perforation, easy to use with storage.

The invention has the beneficial effects as follows: structure of the present invention is simple, durable, by arranging at least two pits with it at spoon, can by the anti-theft pin jack-up of theftproof lock inside when all not inserting lock core, any rotary locking cylinder is got final product after anti-theft pin all falls into pit, and the degree of depth of pit all exceedes a spoon center line for body thickness, effectively prevent other foreign matter rotational lock core; By leaving abutment wall in pit both sides, while not increasing material cost, improve the hardness of key and stressed degree.

Accompanying drawing explanation

Fig. 1 is the present invention for one of perspective view of key one preferred embodiment of the pit band abutment wall of theftproof lock.

Fig. 2 is the perspective view two of the present invention for key one preferred embodiment of the pit band abutment wall of theftproof lock.

Fig. 3 is the front view of the key of the described pit band abutment wall for theftproof lock.

Fig. 4 is the top view of the key of the described pit band abutment wall for theftproof lock.

Fig. 5 is the lateral view of the key of the described pit band abutment wall for theftproof lock.

Fig. 6 is the A-A sectional view of Fig. 3.

Fig. 7 is the B-B sectional view of Fig. 3.

Fig. 8 is one of using state figure of the key of the described pit band abutment wall for theftproof lock.

Fig. 9 is the using state figure bis-of the key of the described pit band abutment wall for theftproof lock.

In accompanying drawing, the mark of each parts is as follows: 1, spoon body, and 11, spoon bar, 111, groove, 112, protruding, 113, sawtooth, 12, pit, 13, abutment wall, 2, the shank of the key, 21, perforation, 3, theftproof lock, 31, anti-theft pin, 311, back-moving spring, 32, lock core, 321, preformed hole.

Detailed description of the invention

Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.

Refer to Fig. 1 and Fig. 2, the embodiment of the present invention comprises:

A kind of key of the pit band abutment wall for theftproof lock, comprise spoon body 1 and the shank of the key 2, at spoon body 1, the position of spoon bar 11 is provided with at least two pits 12 matched with the anti-theft pin 31 of theftproof lock 3, the degree of depth of pit 12 all exceedes the center line of spoon body 1 thickness, leaves abutment wall 13 in the both sides of pit 12.As shown in Figure 5, described pit 12 shifts to install the tow sides at spoon body 1, and shape is inverted trapezoidal, and anti-theft pin 31 structure of the position of pit 12 and structure and theftproof lock 3 matches, and greatly strengthens the working strength of this key.Composition graphs 6 and Fig. 7, the degree of depth of pit 12 is same consistent with anti-theft pin 31 structure of theftproof lock 3, when there being other foreign matter to insert theftproof lock 3, anti-theft pin 31 outward direction can boost by the thickness of foreign matter, the outer end of anti-theft pin 31 is stretched out lock core 32 external diameter, is entered the preformed hole 321 of lock core cover, at this moment lock core 32 cannot rotate, and effectively prevent other foreign matter rotational lock core 32.Refer to Fig. 3 and Fig. 4, the width of abutment wall 13, at 1.5mm, by arranging the larger abutment wall of width 13 in the both sides of pit 12, improves the hardness of key and stressed degree while not increasing material cost.In order to match with lock core 32 structure of theftproof lock 3 inside, spoon bar 11 is provided with inner lock core 32 matches with theftproof lock 3 groove 111, projection 112, sawtooth 113.In addition, the shank of the key 2 offers perforation 21, easy to use with storage.

The operating principle of described key is specifically introduced below in conjunction with a theftproof lock 3.Refer to Fig. 8, when this key does not all insert in the lock core 32 of theftproof lock 3, have certain thickness spoon bar 11 to be boosted by anti-theft pin 31 outward direction, the outer end of anti-theft pin 31 is stretched out lock core 32 external diameter, is entered in the preformed hole 321 of lock core cover, and at this moment lock core 32 cannot rotate.Refer to Fig. 9, when in the lock core 32 that this key all inserts theftproof lock 3, two anti-theft pins 31 takeoff all fall into the pit 12 of this key just, and the back-moving spring 311 in anti-theft pin 31 is upspring, because the upper end of anti-theft pin 31 and vallecular cavity offset, lock core 32 can be rotated by any direction, again because the groove 111 on spoon bar 11, protruding 112, sawtooth 113 match theftproof lock 3 can be opened with lock core 32 internal construction.

Structure of the present invention is simple, durable, by arranging at least two pits 12 on spoon body 1, can by anti-theft pin 31 jack-up of theftproof lock 3 inside when all not inserting lock core 32, any rotary locking cylinder 32 is got final product after anti-theft pin 31 all falls into pit 12, and the degree of depth of pit 12 all exceedes the center line of spoon body 1 thickness, effectively prevent other foreign matter rotational lock core 32; By leaving abutment wall 13 in pit 12 both sides, while not increasing material cost, improve the hardness of key and stressed degree.

The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize manual of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.

Claims

1. the key for the pit band abutment wall of theftproof lock, comprise spoon body and the shank of the key, it is characterized in that, at spoon body, the position of spoon bar is provided with at least two pits matched with the anti-theft pin of theftproof lock, the degree of depth of pit all exceedes a spoon center line for body thickness, leaves abutment wall in the both sides of pit.

2. the key of the pit band abutment wall for theftproof lock according to claim 1, it is characterized in that, described pit shifts to install the tow sides at spoon body, and shape is inverted trapezoidal.

3. the key of the pit band abutment wall for theftproof lock according to claim 1, it is characterized in that, the width of abutment wall is at 0.5-4mm.

4. the key of the pit band abutment wall for theftproof lock according to claim 1, is characterized in that, spoon bar is provided with inner lock core matches with theftproof lock groove, projection, sawtooth.

5. the key of the pit band abutment wall for theftproof lock according to claim 1, is characterized in that, the shank of the key offers perforation.