CN2292865Y - Cylinder lock capable of changing key - Google Patents

Abstract

The utility model relates to a lock, particularly a cylinder lock with a changeable key. The utility model adopts a positioning device and a position changing device; the rows of middle cylinders arranged on a sleeve barrel is less than the rows of lower cylinders arranged on a lock core; various corresponding unlocking keys can be made for fit; under the condition of the key is lost, the position can be independently changed by a user so as to use different unlocking keys; the keys can be periodically changed so as to enhance the security performance of the lock. The utility model has the advantages of simple structure, practicality, and convenience, conforms to the traditional lock making process, and is convenient to produce.

Description

A kind of cylinder lock of used for changeable keys

The utility model relates to lock, is a kind of cylinder lock of used for changeable keys specifically.

It is many that application at present has the lockset that various keys are available for users to from line translation, be " cylinder lock set of convertible many moneys key of 93234797.5 " as from Chinese patent literature, retrieving the patent No., this patent has two deficiencies, the one, two pellets shot from a slingshot are arranged in the cover annular distance that is provided with between lock core and lock body, make that the cover ring wall is very thick, volume is big, cause the volume of whole tapered end big, the 2nd, conversion key key bit is to match with the spoon body by chute, be connected with the spoon body by spring, this makes concerning the very little key of volume is very difficult, has influenced the enforcement of whole proposal and feasible.

The purpose of this utility model provides a kind of middle pellet shot from a slingshot row row number that is provided with on positioner, transposition device, the sleeve that adopts and is less than following pellet shot from a slingshot row row number set on the lock core, can prepare the cylinder lock of a kind of used for changeable keys of various corresponding keys.

The purpose of this utility model is achieved in that

The cylinder lock of a kind of used for changeable keys of the utility model, comprise lock core 1, sleeve 2, lock body 3, open key 10, positioner, transposition device, lock core 1, sleeve 2, lock body 3 is provided with radially many rows pellet shot from a slingshot group 11 that evenly distribution axially sets in a row, open the multiaspect key bit 9 that key 10 is provided with dissimilar tooth form, the middle pellet shot from a slingshot row 13 row's numbers that are provided with on the sleeve 2 are less than row's number of following pellet shot from a slingshot row 12 set on the lock core 1, all middle pellet shot from a slingshot 16 length are all identical with sleeve 2 wall thickness, positioner is location pellet shot from a slingshot group 21, transposition device is transposition key 20, the middle pellet shot from a slingshot row 13 row's numbers that are provided with on each 9 number of key bit of opening key 10 and the sleeve 2 equate, and are mixed with multiple different unlatching key 10 according to lock core 1 accordingly with position location between the sleeve 2.Unlatching key 10 is not provided with the position of key bit and leaves spoon root 8, arranges on the corresponding to position of 12 radial distribution at outer face 4 and each time pellet shot from a slingshot of sleeve 2 and has groove 5; Each opens spoon shoulder 7 its corresponding groove 5 wedgeables that have a key bit 9 on the key 10 at least, and in the then recessed sleeve 2 in the outer face 6 of lock core 1, the recessed degree of depth is not more than the degree of depth of groove 5; Location pellet shot from a slingshot group 21 becomes same row to be provided with on opening with pellet shot from a slingshot row extended position, location pellet shot from a slingshot group 21 by be separately positioned on lock core 1, sleeve 2, the lock body 3 following, in, go up pellet shot from a slingshot 22,23,24 and spring 25 constitutes, the length of the major part 26 of middle pellet shot from a slingshot 23 is identical with the wall thickness of sleeve 2, the diameter of major part 26 is identical with the diameter of last pellet shot from a slingshot 24, in the microcephaly 27 of pellet shot from a slingshot 23 reach in the hole of following pellet shot from a slingshot 22 of lock core 1, microcephaly 27 the length that has a middle pellet shot from a slingshot 23 at least is less than the length of major part 26, and microcephaly's 27 diameters are identical with the diameter of following pellet shot from a slingshot 22; Transposition key 20 is made up of with the shank of the key 28 each face key bit 29, the face number of key bit 29 equates with following pellet shot from a slingshot row 12 row's numbers with unlatching, the end face 30 of the shank of the key 28 has the groove 31 that can insert each face key bit 29, the center that each groove 31 intersects is provided with central post 32, the unlatching key bit part of each face key bit 29 is identical with the profile of tooth of the corresponding key bit 9 of opening key 10, and the profile of tooth of the transposition key bit of key bit 29 part flushes preparation with each time pellet shot from a slingshot 22 outer ends with lock core 1 outer wall surface.There is chamfering at the spoon back of the body 19 two ends of the key bit 29 of transposition key 20, and the end of the central post 32 on the shank of the key 28 is cones, and the spoon shoulder 33 of key bit 29 is provided with thickening step 34.

Adopt the cylinder lock of a kind of used for changeable keys of the utility model, use different unlatching keys instead losing can replace voluntarily under the situation of key, the also key of conversion regularly is to improve the fail-safe of lock, simple in structure, practical, convenient, meet traditional lockmaking technology, be convenient to produce.

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

Fig. 1 is tapered end opening figure;

The D that Fig. 2 opens key for Fig. 1 removes is to view;

Fig. 3 is tapered end transposition state diagram;

Fig. 4 is transposition key the shank of the key figure;

Fig. 5 opens the opening sectional drawing of pellet shot from a slingshot group for Fig. 1;

Fig. 6 locatees the transposition state profile of pellet shot from a slingshot group for Fig. 3;

Fig. 7 is transposition key single face key tooth figure;

Fig. 8 is that the E of Fig. 7 is to view;

Fig. 9 is that Fig. 4 F is to view.

Embodiment:

Extremely shown in Figure 9 as Fig. 1, the cylinder lock of used for changeable keys is made up of lock core 1, sleeve 2, lock body 3, positioner, transposition device, 2 in lock core 1 and sleeve are provided with two and radially are being the convex sliding pin 35 of 180 ° of configurations, hole sliding fit or stationary fit on the major part of sliding pin 35 and the sleeve 2, the microcephaly is sliding to be assigned in the cannelure 36 of lock core 1 outer wall, makes lock core 1 and sleeve 2 can only relatively rotate and can not move axially; Be connected by convex sliding pin 37 between sleeve 2 and the lock body 3, the major part of sliding pin 37 and lock body 3 stationary fits or threaded engagement, the microcephaly is sliding to be assigned in the cannelure 38 of sleeve 2 outer walls, makes sleeve 2 can only rotate and can not move axially with respect to lock body 3 together with lock core 1.Be provided with on the lock core 1 and be down pellet shot from a slingshot row 12 of four uniform rows of cross, on sleeve 2 and the lock body 3 respectively with three rows down pellet shot from a slingshot row 12 be provided with among three rows pellet shot from a slingshot row 13 accordingly and go up pellet shot from a slingshot row 14; Pellet shot from a slingshot that every row communicates row axially in a row be made up of four groups of pellet shot from a slingshot groups 11, every group of pellet shot from a slingshot group 11 by be separately positioned on lock core 1, sleeve 2, the lock body 3 following, in, last pellet shot from a slingshot 15,16,17 and spring 18 form; Open key 10 three key bits 9 are arranged; Transposition key 20 can replace on each position location of lock core 1 and sleeve 2, it is made up of four sides monolithic key bit 29 and the shank of the key 28, the end face 30 of the shank of the key 28 have with lock core 1 on following pellet shot from a slingshot arrange 12 corresponding cross recesses 31, there is a garden cylindricality central post 32 at the intersection center of cross recess 31, the square catercorner length that each groove face of the diameter of central post 32 and lockhole intersects formation is identical, and central post 32 also can be the square column of the length of side square sectional identical with the keyhole groove width.Locate pellet shot from a slingshot group 21 and be provided with four rows, every row has one group of pellet shot from a slingshot group 21, corresponds respectively to the unlatching same row's setting of pellet shot from a slingshot row 12 one-tenth on the position of lockhole inner end prolongation down; Location pellet shot from a slingshot group 21 by be separately positioned on lock core 1, sleeve 2, the lock body 3 following, in, go up pellet shot from a slingshot 22,23,24 and spring 25 constitutes; Middle pellet shot from a slingshot 23 is axisymmetric convex garden pylons, and its major part 26 is configured in the sleeve 2, and the length of major part 26 is identical with the wall thickness of sleeve 2, and diameter is identical with the diameter of last pellet shot from a slingshot 24; The microcephaly 27 of middle pellet shot from a slingshot 23 reaches down in the pellet shot from a slingshot hole of pellet shot from a slingshot 22, and lock core 1 and sleeve 2 are constituted one, and microcephaly 27 diameter is identical with the diameter of following pellet shot from a slingshot 22; Microcephaly 27 the length that has a middle pellet shot from a slingshot 23 at least is less than the length of major part 26, when guaranteeing transposition should in the major part 26 of pellet shot from a slingshot 23 have in the pellet shot from a slingshot hole of one section middle pellet shot from a slingshot 23 of still staying sleeve 2, make the fixing and unlikely skew of relative position energy between sleeve 2 and the lock body 3, sleeve 2 drive plectrums 39 are stirred dead bolt and are carried out work.As Fig. 5, shown in Figure 6, the key bit face that indicates pellet shot from a slingshot and pellet shot from a slingshot row's position and corresponding unlatching key, transposition key with a, b, c, d is other.As can be seen from Fig. 5, during a of sleeve 2 and lock body 3 row is not provided with, go up pellet shot from a slingshot row 13,14, thereby have only b, c, d three rows down, in, go up pellet shot from a slingshot row 12,13,14 and communicate.Below, the unlatching and the transposition state of elaboration tapered end.As Fig. 1, Fig. 2 and Fig. 5, the unlatching key 10 with b, c, three key bits 9 of d inserts in the lockhole.At this moment, b, c, d three row down pellet shot from a slingshot row 12 each down pellet shot from a slingshot 15 outer ends all by corresponding key bit 9 tops to flushing with lock core 1 outer wall surface, because of the two ends of all middle pellets shot from a slingshot 16 also respectively with sleeve 2 in, outer wall surface flushes, and the middle pellet shot from a slingshot 23 of location pellet shot from a slingshot group 21 constitutes one with lock core 1 and sleeve 2, so, when reversing unlatching key 10, lock core 1 rotates simultaneously with sleeve 2, and stir dead bolt by sleeve 2 drive plectrums 39 and open tapered end, in order to alleviate the power that middle pellet shot from a slingshot 23 bears when working, have in the outer face 4 of sleeve 2 and to arrange 12 with following pellet shot from a slingshot and correspondingly be 90 ° of four uniform radial slots 5, and the outer face 6 of lock core 1 is than outer face 4 indents of sleeve 2, the degree of depth of its indent is slightly less than the degree of depth of groove 5, so, each is opened the spoon shoulder 7 of each face key bit 9 on the key 10 and all can wedge in the groove 5, to strengthen the strength that sleeve 2 drives plectrum 39.Guidance quality when inserting lockhole in order to strengthen opening key 10 leaves spoon root 8 at a face of not establishing key bit 9 of opening key 10.As Fig. 3, Fig. 4, Fig. 5 and Fig. 6, Fig. 7, Fig. 8, Fig. 9, during transposition, a that a face key bit of the key 20 that will replace earlier 29 inserts lockholes in groove, be inserted into behind the end again to a row down pellet shot from a slingshot row be close to.Then, with order be inserted with b, c, the shank of the key 28 three key bits 29 of d, that have central post 32 inserts in the lockhole in the lump, the spoon shoulder 33 of a face key bit 29 also is inserted in the dead slot 31 of the shank of the key 28, transposition key 20 just has been combined into integral body.At this moment, b, c, d three arranges and opens down pellet shot from a slingshot row 12 and be in opening, and following pellet shot from a slingshot 22 outer ends of respectively locating pellet shot from a slingshot group 21 are all extremely flushed with the outer wall surface of lock core 1 by the transposition key bit of key bit 29 top, the upper half of the major part 26 of middle pellet shot from a slingshot 23 is then headed in the pellet shot from a slingshot hole of pellet shot from a slingshot 24 by following pellet shot from a slingshot 22, at this moment, lock core 1 is in relatively turnable state with sleeve 2, sleeve 2 and lock body 3 then in the quilt pellet shot from a slingshot 23 pins fixed, transposition by twisting key 20, drive lock core half-twist or 180 °, then successively with the shank of the key 28 and c, d, b, a face key bit 29 is extracted out from lockhole, and transposition is promptly accused and finished.The lock core 1 after the transposition and the new position location of sleeve 2 promptly are applicable to the corresponding unlatching key in position work therewith.Insert lockhole for ease of each key bit 29 and the shank of the key 28, there is chamfering at the spoon back of the body 19 two ends of key bit 29, and the end of the central post 32 on the shank of the key 28 is processed into cone; The degree of depth of inserting lockhole for the ease of monolithic key bit 29 is spacing, and the spoon shoulder 33 of key bit 29 is provided with thickening step 34.

Each face key bit and lockhole cross recessed four orientation a, b, c, the d of transposition key should do corresponding mark in product manufacturing of the present utility model, open key and then can not do correspondence markings, have more fail-safe, the utility model is simple in structure, practical, convenient, meet traditional lockmaking technology, is convenient to produce.

Claims (3)

1, a kind of cylinder lock of used for changeable keys, comprise lock core 1, sleeve 2, lock body 3, open key 10, positioner, transposition device, it is characterized in that: lock core 1, sleeve 2, lock body 3 is provided with radially many rows pellet shot from a slingshot group 11 that evenly distribution axially sets in a row, open the multiaspect key bit 9 that key 10 is provided with dissimilar tooth form, the middle pellet shot from a slingshot row 13 row's numbers that are provided with on the sleeve 2 are less than row's number of following pellet shot from a slingshot row 12 set on the lock core 1, all middle pellet shot from a slingshot 16 length are all identical with sleeve 2 wall thickness, positioner is location pellet shot from a slingshot group 21, transposition device is transposition key 20, the middle pellet shot from a slingshot row 13 row's numbers that are provided with on each 9 number of key bit of opening key 10 and the sleeve 2 equate, and are mixed with multiple different unlatching key 10 according to lock core 1 accordingly with position location between the sleeve 2.

2, the cylinder lock of a kind of used for changeable keys according to claim 1 is characterized in that: unlatching key 10 is not provided with the position of key bit and leaves spoon root 8, arranges on the corresponding to position of 12 radial distribution at outer face 4 and each time pellet shot from a slingshot of sleeve 2 and has groove 5; Each opens spoon shoulder 7 its corresponding groove 5 wedgeables that have a key bit 9 on the key 10 at least, and in the then recessed sleeve 2 in the outer face 6 of lock core 1, the recessed degree of depth is not more than the degree of depth of groove 5; Location pellet shot from a slingshot group 21 becomes same row to be provided with on opening with pellet shot from a slingshot row extended position, location pellet shot from a slingshot group 21 by be separately positioned on lock core 1, sleeve 2, the lock body 3 following, in, go up pellet shot from a slingshot 22,23,24 and spring 25 constitutes, the length of the major part 26 of middle pellet shot from a slingshot 23 is identical with the wall thickness of sleeve 2, the diameter of major part 26 is identical with the diameter of last pellet shot from a slingshot 24, in the microcephaly 27 of pellet shot from a slingshot 23 reach in the hole of following pellet shot from a slingshot 22 of lock core 1, microcephaly 27 the length that has a middle pellet shot from a slingshot 23 at least is less than the length of major part 26, and microcephaly's 27 diameters are identical with the diameter of following pellet shot from a slingshot 22; Transposition key 20 is made up of with the shank of the key 28 each face key bit 29, the face number of key bit 29 equates with following pellet shot from a slingshot row 12 row's numbers with unlatching, the end face 30 of the shank of the key 28 has the groove 31 that can insert each face key bit 29, the center that each groove 31 intersects is provided with central post 32, the unlatching key bit part of each face key bit 29 is identical with the profile of tooth of the corresponding key bit 9 of opening key 10, and the profile of tooth of the transposition key bit of key bit 29 part flushes preparation with each time pellet shot from a slingshot 22 outer ends with lock core 1 outer wall surface.

3, the cylinder lock of a kind of used for changeable keys according to claim 2 is characterized in that: there is chamfering at the spoon back of the body 19 two ends of the key bit 29 of transposition key 20, and the end of the central post 32 on the shank of the key 28 is cones, and the spoon shoulder 33 of key bit 29 is provided with thickening step 34.

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