CN2846631Y

CN2846631Y - Lock

Info

Publication number: CN2846631Y
Application number: CN 200520144595
Authority: CN
Inventors: 沈程凯
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-12-13
Filing date: 2005-12-13
Publication date: 2006-12-13
Anticipated expiration: 2015-12-13

Abstract

The utility model relates to a lock, which is composed of a lock body, a lock core, a cylinder, etc., wherein a transfixion containing groove is symmetrically arranged in the lock body along a centerline, and at least one cylinder groove is arranged on the radial direction of the containing groove; a cylindrical lock core hole is arranged in the lock core along axial direction. The utility model is characterized in that the lock core comprises a front lock core and a back lock core; the position of off-centered shaft is coaxially provided with a hole and a back lock core key groove on the contact end surface of the front lock core and the back lock core; the diameter of the hole is bigger than the diameter of the back lock core key groove; a washer and a T-shaped key which is arranged in the washer are arranged in the hole; a spring is butted between a shaft shoulder of the key and the end surface of the washer; the length of the key is less than or equal to the depth of the hole; the height of the radial direction of the key is less than or equal to the height of the radial direction of a cylinder in the same side. The utility model can prevent from using screw drivers which are in a cross shape or a straight shape or other similar tools to unlock, and the utility model has safe performance.

Description

Tapered end

Technical field

The utility model relates to a kind of lock, particularly about having the tapered end of linking bond in a kind of lock core.

Background technology

At present, cylinder lock is the most common.Usually cylinder lock has the lock core cover that has lock core hole, is provided with lock core in the lock core hole, and the lock core middle part is provided with keyhole, in the hole that radially has built-in pellet shot from a slingshot and spring of lock core, lock core hole.Key is inserted in the keyhole, radially move to a certain position when key promotes pellet shot from a slingshot, lock core is promptly rotatable, and lock core rotates and drives the dead bolt motion, thereby makes lock open or lock.

Usually keyhole has cross, in-line or circular arc etc.Because described keyhole shape exposes, the linking bond that is key and lock core is shaped as cross, in-line or circular arc etc., so that use the instrument of cross, Flathead screwdriver or shape approximation lock core hole to open lockset with regard to inserting the lock core hole of described shape at an easy rate.Make this lock lose its antitheft meaning.

The utility model content

The purpose of this utility model is to provide a kind of tapered end for solving described problem and defective, constitute by tapered end 1, lock core, pellet shot from a slingshot 7, be symmetrically arranged with the storage tank 13 of perforation in the tapered end 1 along center line, the footpath of this storage tank 13 upwards is provided with at least one bullet groove, is provided with lock cylinder hole 11 in the described lock core vertically.

Lock core is along comprising preceding lock core 2 and rear lock core 3; Before described on lock core 2 and the end face that rear lock core 3 contacts, departing from coaxial hole 10 and the rear lock core keyway 5 of being provided with of central axis respectively, and the diameter in described hole 10 is greater than the diameter of described rear lock core keyway 5, and the radial height of key 4 is smaller or equal to the radial height of the pellet shot from a slingshot 7 that homonymy had.

Packing ring 6 and the T font key 4 that is arranged in this packing ring 6 are set in the described hole 10, support between the end face of the shaft shoulder of described key 4 and described packing ring 6 and establish spring 4a, and the length of key 4 are smaller or equal to the degree of depth in hole 10.

On the sidewall of described lock core hole 11 with storage tank 13 on the bullet groove that had radially have the groove that at least one holds pellet shot from a slingshot 7 accordingly.

One end of described rear lock core 3 has the shaft shoulder, supports between the bottom of the shaft shoulder and storage tank 13 and establishes spring 3a.

The external peripheral surface of lock core 2 has annular keyway 9 before described; Be disposed radially tapered end keyway 12 on the relevant position of described storage tank 13 sidewalls; And in described annular keyway 9 and described tapered end keyway 12, plug steady pin 8.

Described rear lock core 3 not with described before movable reed or dead bolt can be set on the end that contacts of lock core 2, perhaps form gear etc.Be connected with other lockset by the parts set in the end of described rear lock core.

Tapered end of the present utility model can use in various locksets.And advantage of the present utility model is: can prevent the problem of using cross or Flathead screwdriver or other similar tool to unblank, have the performance of safety and reliability.

Description of drawings

Fig. 1 is the whole sectional drawing of tapered end of the present utility model;

Fig. 2 is the whole front view of tapered end of the present utility model;

Fig. 3 is the part sectioned view of tapered end of the present utility model;

Fig. 4 is the part sectioned view of anterior lock core of the present utility model;

Fig. 5 is the lateral plan of rear portion of the present utility model lock core.

The figure number explanation

1, tapered end 2, preceding lock core

3, rear lock core 4, key

5, rear lock core keyway 6, packing ring

7, pellet shot from a slingshot 8, steady pin

9, annular keyway 10, hole

11, lock core hole 12, tapered end keyway

3a, 4a, 7a, spring

The specific embodiment

With reference to the accompanying drawings the utility model is elaborated.

As Fig. 1 and shown in Figure 2, tapered end among the embodiment of the present utility model is made of tapered end 1, lock core, pellet shot from a slingshot 7, be symmetrically arranged with the storage tank 13 of perforation in the tapered end 1 along center line, the footpath of this storage tank 13 upwards is provided with at least one bullet groove, is provided with lock cylinder hole 11 in the described lock core vertically.

Lock core is along comprising preceding lock core 2 and rear lock core 3; Before described on lock core 2 and the end face that rear lock core 3 contacts, central axis is coaxial to be provided with hole 10 and rear lock core keyway 5 (shown in Figure 5) departing from respectively, and the diameter in described hole 10 is greater than the diameter of described rear lock core keyway 5.

Packing ring 6 and the T font key 4 that is arranged in this packing ring 6 are set in the described hole 10, support between the end face of the shaft shoulder of described key 4 and described packing ring 6 and establish spring 4a, and the length of key 4 is smaller or equal to the degree of depth in hole 10, key 4 does not just stretch into rear lock core keyway 5 like this, thereby under locking state, can not a lock be opened by lock core before rotating.And the radial height of key 4 is smaller or equal to the radial height of the pellet shot from a slingshot 7 that homonymy had, and like this if do not make in a plurality of pellets shot from a slingshot 7 indentation bullet groove of key 4 one sides, just can not make similar tool such as key touch key 4.

Because the diameter in described hole 10 is greater than the diameter of described rear lock core keyway 5, so make packing ring 6 tighten and be butted on the upper surface of keyway 5 by the effect of spring 4a.

One end of described rear lock core 3 has the shaft shoulder, supports between the bottom of the shaft shoulder and storage tank 13 and establishes spring 3a.And can make rear lock core 3 is the center rotation with the central axis.

On the sidewall of described lock core hole 11 with storage tank 13 on the bullet groove that had radially have some a plurality of grooves that hold pellet shot from a slingshot 7 accordingly.Effect by spring 7a (spring in other bullet groove omits diagram) in this groove can radially be moved pellet shot from a slingshot 7.

As Fig. 3 and shown in Figure 4, the external peripheral surface of described preceding lock core 2 has annular keyway 9; Be disposed radially tapered end keyway 12 on the relevant position of described storage tank 13 sidewalls; And in described annular keyway 9 and described tapered end keyway 12, plug steady pin 8.Lock core 2 can not be the center rotation movably forward and backward with the central axis before effect by steady pin 8 made.

In use, key is inserted preceding lock core hole 11, at first enter rotatable state by lock core 2 before making key and cooperating of a plurality of pellets shot from a slingshot 7; The key front end touches key 4 then, makes key 4 insert rear lock core keyway 5, makes rear lock core 3 enter the state that can be driven to rotate; Key then, thus lock core 2 rotations before making drive rear lock core 3 rotations simultaneously, thereby the lockset that is connected are opened.

In described operation, because the radial height of key 4 is lower than the height that pellet shot from a slingshot 7 exposes, thus when key and similar tool etc. can not make in a plurality of pellet shot from a slingshot 7 indentation bullet groove, just can not touch key 4, thus the lockset that is connected is opened; And, even key can make in a plurality of pellet shot from a slingshot 7 indentation bullet groove, key 4 is inserted in the rear lock core keyway 5 and touch key 4, but can not cooperate with pellet shot from a slingshot 7, lock core 2 rotations before just can not making then can not drive rear lock core 3 rotations, thereby the lockset that is connected is opened.

In sum, have only when cooperating, key 4 is inserted in the rear lock core keyways 5, the lockset that is connected is opened with a plurality of pellets shot from a slingshot 7.Thereby improved theftproof performance greatly.

By described description, the related work personnel can carry out various change and modification fully in the scope that does not depart from the utility model technological thought.

Therefore, technical scope of the present utility model is not limited to the content on the manual, must determine its technical scope according to interest field.

Claims

1, a kind of tapered end, constitute by tapered end, lock core, pellet shot from a slingshot (7), be symmetrically arranged with the storage tank (13) of perforation in the tapered end (1) along center line, the footpath of this storage tank (13) upwards is provided with at least one bullet groove, be provided with lock cylinder hole (11) in the described lock core vertically, it is characterized in that

Lock core is along comprising preceding lock core (2) and rear lock core (3); Before described on lock core (2) and the end face that rear lock core (3) contacts, central axis is coaxial to be provided with hole (10) and rear lock core keyway (5) departing from respectively, and the diameter of described hole (10) is greater than the diameter of described rear lock core keyway (5);

Packing ring (6) is set in the described hole (10) and is arranged on the interior T font key (4) of this packing ring (6), support between the end face of the shaft shoulder of described key (4) and described packing ring (6) and establish spring (4a), and the length of key (4) is smaller or equal to the degree of depth of hole (10); And the radial height of key (4) is smaller or equal to the radial height of the pellet shot from a slingshot (7) that homonymy had.

2, tapered end as claimed in claim 1 is characterized in that, on the sidewall of described lock core hole (11) with storage tank (13) on the bullet groove that had radially have the groove that at least one holds pellet shot from a slingshot (7) accordingly.

3, tapered end as claimed in claim 1 is characterized in that, an end of described rear lock core (3) has the shaft shoulder, supports between the bottom of the shaft shoulder and storage tank (13) and establishes spring (3a).

4, tapered end as claimed in claim 1 is characterized in that, the external peripheral surface of described preceding lock core (2) has annular keyway (9); Be disposed radially tapered end keyway (12) on the relevant position of described storage tank (13) sidewall; And in described annular keyway (9) and described tapered end keyway (12), plug steady pin (8).

5, tapered end as claimed in claim 1 is characterized in that, described rear lock core (3) not with described before movable reed or dead bolt are set on the end that contacts of lock core (2), perhaps form gear.