CN204402169U - Four grooved blade lock core and keys - Google Patents

Four grooved blade lock core and keys Download PDF

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Publication number
CN204402169U
CN204402169U CN201520054258.XU CN201520054258U CN204402169U CN 204402169 U CN204402169 U CN 204402169U CN 201520054258 U CN201520054258 U CN 201520054258U CN 204402169 U CN204402169 U CN 204402169U
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CN
China
Prior art keywords
blade
lock core
notch
key
locking cylinder
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201520054258.XU
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Chinese (zh)
Inventor
聂红卫
胡波
季彬
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聂红卫
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Priority to CN201520054258.XU priority Critical patent/CN204402169U/en
Application granted granted Critical
Publication of CN204402169U publication Critical patent/CN204402169U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of four grooved blade lock core and keys, comprise lock core body (1), rotary locking cylinder (9), key (7), described rotary locking cylinder (9) is provided with blade groove (10), is provided with first, second, and third blade (4,5,6) in blade groove (10); First blade (4) is provided with blade notch (12), spring positioning seat (14) and the right tooth (13); Second blade (5) is provided with blade notch (12) and middle tooth (15); Three-blade (6) is provided with blade notch (12), spring positioning seat (14) and left side tooth (16); Rotary locking cylinder (9) is provided with middle block (18), is provided with leaf spring (17) between spring positioning seat (14) and middle block (18); Rotary locking cylinder (9) is provided with locking piece notch (2) with lock core body (1) is above corresponding, and locking piece notch (2) is provided with the locking piece (3) matched with the blade notch (12) on all blades.After adopting said structure, there is the features such as production and processing is convenient, mutual opening rate is low, antitheft performance is good, and derive the key of new structure thus.

Description

Four grooved blade lock core and keys
Technical field
The utility model relates to a kind of mechanical lock master, particularly a kind of novel key three kinds of different leaves assemblies being combined in four grooved blade lock cores in same blade groove and deriving from.
Background technology
Although existing all kinds of mechanical lock head profile is ever-changing, the internal construction of tapered end is substantially identical, primarily of parts compositions such as tapered end, lock core body, keys, is aided with pellet different in size and marble spring, common locking and the open function forming tapered end.During blocking, the lower pellet in marble hole is all lower than lock core body surface under the elastic force effect of marble spring, and upper pellet half enters in lock core, and second half stays in lock body, and now lock core can not rotate.When after insertion key, the different key bit of height extrudes lower pellet after overcoming the elastic force of marble spring on the key, the rising making lower pellet upwards make differing heights is moved, whole lower pellet afterbodys and lock core body surface is caused to maintain an equal level, and upper pellet is all discharged lock core body, lock core body freely can rotate relative to tapered end under key drives, and lock core just can be opened.When this type of lock core has just released market, due to pellet circumferentially and distribute more, lawless person does not also have special pirate of the open instrument for the moment, and theftproof performance is better; But after use in a few years, market has occurred the special pirate of the open instrument for this type of tapered end, As time goes on and constantly theftproof performance also declines.For this reason, people develop again blade anti-theft lock core, although pick-proof effect increases, still not, still by the pirate of the open of lawless person institute, anti-theft security performance needs to be improved further size of key.Therefore, many manufacturers and knowledgeable people have carried out R and D, but not yet have rational product to emerge so far.
Summary of the invention
In order to overcome the above-mentioned disadvantage that existing blade lock core exists, the purpose of this utility model is by being optimized combination and structure improvement to said structure, providing four grooved blade lock core and the keys that a kind of mutual opening rate is low, antitheft performance is good.
The utility model solves the problems of the technologies described above adopted technical scheme, it comprises lock core body, rotary locking cylinder, key, rotary locking cylinder is arranged in lock core body rotationally, rotary locking cylinder is provided with key hole, it is the blade groove of right-angled intersection with key hole that described rotary locking cylinder is provided with some, and the first blade, the second blade and Three-blade are housed in described blade groove successively; The top of the first blade is provided with blade notch, bottom is provided with spring positioning seat, key hole is provided with the right tooth; The top of the second blade is provided with in blade notch, key hole and is provided with middle tooth; Three-vaned top is provided with blade notch, bottom is provided with in spring positioning seat, key hole and is provided with left side tooth; Rotary locking cylinder is provided with middle block, and first and three-vaned spring positioning seat be provided with leaf spring corresponding between middle block; Described rotary locking cylinder is corresponding with on lock core body is provided with the locking piece notch parallel with key hole, and locking piece notch is provided with locking piece, and the bottom of locking piece coordinates with the blade notch on all blades.
Further scheme of the present utility model, the tow sides correspondence of described key is provided with left and right heel teeth groove and two symmetrical middle teeth groove, and left and right heel teeth groove is corresponding to match with left and right heel teeth, and two middle teeth groove and middle tooth match.
Further scheme of the present utility model, described rotary locking cylinder is connected with shift fork of unblanking.
After adopting said structure, the utility model has the following advantages and effect: one is because described blade groove is built with three kinds of different leaves, when unblanking, the left and right heel teeth groove of key, symmetrical middle teeth groove match with left and right heel teeth and middle tooth simultaneously and merge promotion three kinds of different leaves and moved and unblank, size of key doubles, reduce mutual opening rate, increase opening difficulty further, thus substantially increase the theftproof performance of anti-technical opening.Two is because blade is provided with spring positioning seat, and leaf spring is arranged between middle block and spring positioning seat, and leaf spring is installed more convenient, uses reliable.Three is that the key hole closure designs of blade center, therefore processes more convenient, can greatly enhance productivity and planeness because key hole design is at rotary locking cylinder center.Four is that key tow sides are provided with left and right heel teeth groove and symmetrical middle teeth groove, two-sidedly can insert in key hole, and unblank more convenient, derive new structure four grooved key, key has obvious distinguishing characteristics for this reason.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model first blade.
Fig. 3 is the structural representation of the utility model second blade.
Fig. 4 is the three-vaned structural representation of the utility model.
Fig. 5 is the A-A cross-sectional view of the utility model Fig. 1.
Fig. 6 is the utility model Key structure schematic diagram.
Wherein 1 lock core body, 2 locking piece notches, 3 locking piece, 4 first blades, 5 second blades, 6 Three-blade, 7 keys, 8 key holes, 9 rotary locking cylinders, 10 blade grooves, 11 unblank shift fork, 12 blade notches, tooth on the right of in the of 13,14 spring positioning seats, tooth in 15,16 left side teeth, 17 leaf springs, 18 middle blocks, 19 left side teeth groove, teeth groove on the right of in the of 20, teeth groove in 21.
Detailed description of the invention
Shown in Fig. 1 to Fig. 6, for the specific embodiments of a kind of four grooved blade lock cores of the utility model and key, it comprises lock core body 1, rotary locking cylinder 9, key 7, rotary locking cylinder 9 is arranged in lock core body 1 rotationally, rotary locking cylinder 9 is provided with key hole 8, rotary locking cylinder 9 is connected with shift fork 11 of unblanking, described rotary locking cylinder 9 be provided with some with key hole 8 blade grooves 10 in right-angled intersection, the first blade 4, second blade 5 and Three-blade 6 is housed in described blade groove 10 successively; The top of the first blade 4 is provided with blade notch 12, bottom is provided with spring positioning seat 14, key hole 8 is provided with the right tooth 13; The top of the second blade 5 is provided with in blade notch 12, key hole 8 and is provided with middle tooth 15; The top of Three-blade 6 is provided with blade notch 12, bottom is provided with spring positioning seat 14, be provided with left side tooth 16 in key hole 8; Rotary locking cylinder 9 is provided with that the spring positioning seat 14 of middle block 18, the first and the Three-blade 4,6 is corresponding with between middle block 18 is provided with leaf spring 17; Described rotary locking cylinder 9 is corresponding with on lock core body 1 is provided with the locking piece notch 2 parallel with key hole 8, and locking piece notch 2 is provided with locking piece 3, and the bottom of locking piece 3 coordinates with the blade notch 12 on all blades.
The tow sides correspondence of described key 7 is provided with left and right heel teeth groove 19,20 and symmetrical two middle teeth groove 21, and left and right heel teeth groove 19,20 is corresponding to match with left and right heel teeth 16,13, and two middle teeth groove 21 match with middle tooth 15.
Utility model works process is as follows, when inserting key 7 on the key hole 8 of rotary locking cylinder 9, the left and right heel teeth groove 19 of key 7, the right tooth 13 on the left side tooth 16 of 20 corresponding extruding Three-blade 6 and the first blade 4, the middle teeth groove 21 of key 7 extrudes the middle tooth 15 on the second blade 5, make first, second and Three-blade 4, 5, blade notch 12 on 6 moves and corresponding with locking piece 3, when the blade notch 12 on all blades coincide with locking piece 3, locking piece 3 enters in the blade notch 12 on all blades, locking piece 3 is made to depart from the locking piece notch 2 of lock core body 1 and maintain an equal level with rotary locking cylinder 9 periphery, lock core body 1 is free to rotate relatively for rotary locking cylinder 9, when rotating key 7, rotary locking cylinder 9 is just rotatable.
After extracting key 7, the vaned pressure releases of middle teeth groove 21 extruding that left and right heel teeth groove on key 7 19,20 and two is symmetrical, first and Three-blade 4,6 move inward and automatically reset under leaf spring 17 acts on, reset under second blade 5 teeth groove 21 in key drives, and make the blade notch 12 on blade produce displacement, when blade produces displacement, locking piece 3 is raised and is entered in the locking piece notch 2 of lock core body 1 under the promotion of blade, can not rotate after rotary locking cylinder 9 is blocked the pinning of sheet 3, thus realize locking.
The above; just specific embodiment of the utility model, not makes any pro forma restriction to the utility model, is not departing from the technical solution of the utility model basis; done simple modification, equivalent variations or modification, all fall into protection domain of the present utility model.

Claims (3)

1. a grooved blade lock core and key, comprise lock core body (1), rotary locking cylinder (9), key (7), rotary locking cylinder (9) is arranged in lock core body (1) rotationally, rotary locking cylinder (9) is provided with key hole (8), it is characterized in that: described rotary locking cylinder (9) is provided with some with key hole (8) blade groove in right-angled intersection (10), and the first blade (4), the second blade (5) and Three-blade (6) are housed in described blade groove (10) successively; The top of the first blade (4) is provided with blade notch (12), bottom is provided with spring positioning seat (14), key hole (8) is provided with the right tooth (13); The top of the second blade (5) is provided with in blade notch (12), key hole (8) and is provided with middle tooth (15); The top of Three-blade (6) is provided with blade notch (12), bottom is provided with spring positioning seat (14), be provided with left side tooth (16) in key hole (8); Rotary locking cylinder (9) is provided with middle block (18), and first and the spring positioning seat (14) of Three-blade (4,6) is corresponding with between middle block (18) is provided with leaf spring (17); Described rotary locking cylinder (9) is provided with the locking piece notch (2) parallel with key hole (8) with lock core body (1) is above corresponding, locking piece notch (2) is provided with locking piece (3), and the bottom of locking piece (3) coordinates with the blade notch (12) on all blades.
2. four grooved blade lock core and keys according to claim 1, it is characterized in that: the tow sides correspondence of described key (7) is provided with left and right heel teeth groove (19,20) and two symmetrical middle teeth groove (21), left and right heel teeth groove (19,20) is corresponding to match with left and right heel teeth (16,13), and two middle teeth groove (21) match with middle tooth (15).
3. four grooved blade lock core and keys according to claim 2, is characterized in that: described rotary locking cylinder (9) is connected with shift fork of unblanking (11).
CN201520054258.XU 2015-01-27 2015-01-27 Four grooved blade lock core and keys Expired - Fee Related CN204402169U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520054258.XU CN204402169U (en) 2015-01-27 2015-01-27 Four grooved blade lock core and keys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520054258.XU CN204402169U (en) 2015-01-27 2015-01-27 Four grooved blade lock core and keys

Publications (1)

Publication Number Publication Date
CN204402169U true CN204402169U (en) 2015-06-17

Family

ID=53426042

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520054258.XU Expired - Fee Related CN204402169U (en) 2015-01-27 2015-01-27 Four grooved blade lock core and keys

Country Status (1)

Country Link
CN (1) CN204402169U (en)

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150617

Termination date: 20170127