CN203584031U - Novel pin-free mechanical lock and special key for lock - Google Patents

Abstract

The utility model relates to a lock, in particular to a novel pin-free mechanical lock and a special key for the lock. The lock comprises a lock body, a lock cylinder and a lock cylinder protection piece, wherein the lock cylinder and the lock cylinder protection piece are installed in the lock body. The novel pin-free mechanical lock is characterized in that the lock cylinder is a T-shaped stepped shaft, a key insertion hole is formed in a large cylinder on the T-shaped stepped shaft, the large cylinder on the T-shaped stepped shaft is matched with a stepped hole in the lock body, the lower end of a small cylinder of the T-shaped stepped shaft stretches out of the lower end of the lock body and positioned through an axial positioning device, an annular cavity is formed between the small cylinder and the lock body, two or more externally coded protrusions are arranged on the inner wall, in the axial direction of the annular cavity, of the lock body, two or more internally coded protrusions are distributed on the portion, in the annular cavity, of the small cylinder of the T-shaped stepped shaft, and a key barrier plate is installed on the large cylinder of the T-shaped stepped shaft and in the stepped hole, matched with the large cylinder, of the lock body. The lock has the advantages of being provided with fewer parts, low in production cost, good in safety and the like.

Description

A kind of novel non-marble mechanical lock and private key

Affiliated technical field

The utility model relates to a kind of lockset, particularly a kind of novel non-marble mechanical lock and private key.

Background technology

At present, utilize mechanical lock that key opens all by lock body be arranged on rotatable lock core in institute's body and form, on lock core, have the keyhole for inserting key, many group pellets and spring are installed in lock core and lock body, every group of pellet is comprised of two pellets different in size.In a side of lock body, utilize lead sealing that pellet and spring are enclosed in lock core and lock body, supporting with it have on the key a corresponding pit, when key inserts after keyhole, pellet just contacts with corresponding pit, corresponding pellet is along the diverse location that moves axially to of pellet, the contact surface of two pellets in the many groups pellet that makes to install in lock core and lock body, is just in time positioned on the contact surface of lock core periphery and lock body endoporus, and key turns band movable lock core rotates lock is opened.For improving the safety of mechanical cylinder lock, common way is the shape that increases the quantity of pellet group and change key cross section, as the cross section of current key, there are the shapes such as " one " font, " Y " shape, " ten " font, crescent, the quantity of pellet group is in 4-12 groups, increased so on the one hand the difficulty of the number of parts of cylinder lock and processing, assembling, improved processing cost, on the other hand because the operating principle of cylinder lock causes its safety not high, be very easy to be opened by lawless person.

Applicant has applied for the utility model patent of " a kind of duplex safety mechanical lock " by name, notice of authorization CN201963074U on February 1st, 2011.This patent discloses one and added lock core bluff piece between rotor lock core and nail lock body, by lock core bluff piece, by the keyhole sealing on rotor lock core, can effectively prevent that other instrument except private key from entering in keyhole, and the phenomenon of illegal opened lock occurs.

Summary of the invention

The purpose of this utility model is to provide Novel marble mechanical lock and the private key that a kind of number of parts is few, simple in structure, security performance is good.

The technical solution of the utility model is: one is newly without type marble mechanical lock, comprise lock body and be arranged on the rotatable lock core in lock body, lock core bluff piece is installed in lock body and lock core, it is characterized in that lock core is "T"-shaped multidiameter, on large cylinder in "T"-shaped multidiameter, have key hole, and the shoulder hole on large cylinder and lock body on "T"-shaped multidiameter matches, lock body lower end is stretched out in the small cylinder lower end of "T"-shaped multidiameter, and locate by axial direction positioning device, the annular cavity forming between small cylinder and lock body, on lock body along the projection that is arranged with more than 2 outer codings on the inwall of annular cavity axial direction, on the small cylinder of the "T"-shaped multidiameter in toroidal cavity, be distributed with the projection of 2 above Inner codings, key barrier plate be arranged on large cylinder in "T"-shaped multidiameter and the lock body that matches with large cylinder on shoulder hole in.

Above-mentioned axial direction positioning device is axle spring collar or pad and hold-down screw in the installation of lock core lower surface.

Angle between the protruding center line of the center line of above-mentioned key hole and above-mentioned outer coding is 90-180 degree.

The projection of the Inner coding on the small cylinder in above-mentioned "T"-shaped multidiameter is comprised of the annular projection on small cylinder surface.

The projection of the Inner coding on the small cylinder in above-mentioned "T"-shaped multidiameter, comprise the through hole radially opened along small cylinder, be arranged on the bearing pin in through hole and be sleeved on the stage clip composition on bearing pin, at bearing pin, stretch out on the periphery of small cylinder endmost surface and have annular boss, compression spring sleeve is contained on the upper pin between annular boss and small cylinder, on annular cavity inwall on above-mentioned lock body, have with the end face correspondence position of bearing pin one end the pit matching with pin roll end face, the bearing pin other end is corresponding with key hole.

A kind of novel non-marble mechanical lock private key, comprise the shank of the key and key body, it is characterized in that matching at key body and above-mentioned key hole, on key body top and above-mentioned lock core bluff piece correspondence position, have the through hole matching with lock core bluff piece, on the relative two sides of key body, have pit, the match profiles convexing to form of the projection of the outer coding in pit and above-mentioned annular cavity and Inner coding, the lower end of key body is wedge shape.

The technical solution of the utility model has been utilized matching relationship and the structure between lock body and the lock core of existing machinery cylinder lock, but there is annular cavity between lock body internal cylinder and lock body, on lock body in annular cavity and lock core, be separately installed with the projection of outer coding and the projection of Inner coding, angle between the protruding center line of the center line of key hole and outer coding is equal to or greater than 90 degree, in the radial direction of key hole, lock core bluff piece is installed.Under normal condition, key hole is sealed by lock core bluff piece, when illegally unblanking, lock core bluff piece inwardly need be pushed away, now lock core bluff piece just pins lock core and lock body, makes cannot relatively rotate between lock core and lock body, so just can effectively prevent from illegally unblanking, improve the safety of lock.And when inserting with phase-locked key of joining, lock core bluff piece is just in time positioned at the through hole matching with lock core bluff piece on the key, key turns is equal to or greater than after 90 degree, key body two relative side will contact with the projection of Inner coding with the projection of outer coding, when the match profiles convexing to form of the outline of key body and the projection of outer coding and Inner coding, key just can be rotated further startup opening mechanism of lock spring bolt lock is opened, when the not timing of profile convexing to form of the outline of key body and the projection of outer coding and Inner coding, key cannot be rotated further, lock just cannot be opened.The projection of encoding due to projection and the Inner of outer coding is positioned at the annular cavity of lock body, and cannot see or visit the position of arriving have again lock core bluff piece that key hole is sealed in key hole, utilizes so existing means illegally to open.Because the part of the technical program is less than the number of parts of existing mechanical cylinder lock greatly, produce and assembly cost low, safety is good.Because the profile convexing to form of the outline of key and the projection of outer coding and Inner coding matches, small variation between the two just can solve the high problem of repetitive rate of current lock.

Accompanying drawing explanation

Accompanying drawing 1 is the structural representation of the utility model embodiment 1;

Accompanying drawing 2 is the A-A sectional view of the utility model accompanying drawing 1;

Accompanying drawing 3 is the top view of the utility model accompanying drawing 1;

Accompanying drawing 4 is the structural representation of the utility model private key;

Accompanying drawing 5 is the structural representation of the utility model embodiment 2.

The specific embodiment

Embodiment 1:

As shown in Figure 1,2,3, 4, rotatable lock core 1 is installed in lock body 3, lock core is "T"-shaped multidiameter, on the large cylinder on "T"-shaped multidiameter top, has key hole 14, and the shoulder hole on large cylinder and the lock body on "T"-shaped multidiameter top matches.Lock body lower end is stretched out in the lower end of the small cylinder of "T"-shaped multidiameter, and carry out axial location by axial direction positioning device 6, axial direction positioning device, pad and the hold-down screw that can adopt axle of the prior art spring collar or install in the lower surface of "T"-shaped multidiameter are fixed, shoulder hole is passed through on lock core top like this, bottom, by spring collar or pad and hold-down screw for axle, is fixed on the "T"-shaped multidiameter as lock core in lock body vertically.

Between the small cylinder of the large cylinder lower end on "T"-shaped multidiameter top and lock body, form an annular cavity 5, on lock body, on the inwall of annular cavity axial direction, be arranged with the projection 7 of coding outside 4, the small cylinder surface distributed of the "T"-shaped multidiameter in toroidal cavity consists of the projection 4 of Inner coding 3 annular projections.Angle between the center line of the center line of key hole 13 and the projection of above-mentioned outer coding 7 is 180 degree, its objective is and makes illegal opener cannot see or visit protruding shape and the position to outer coding.Lock core bluff piece 10 is installed in the large cylinder on lock body and lock core, lock core bluff piece is by spring 8 and pellet 9 is removable is arranged between lock body and lock core, the contact surface of pellet and lock core bluff piece under normal condition, just in time be positioned on the contact surface of the shoulder hole on large cylinder and the lock body on "T"-shaped multidiameter top, between lock core and lock body, can relatively rotate.

A kind of novel non-marble mechanical lock private key, comprise the shank of the key and key body, at key body and above-mentioned key hole 14, match, on key body top and above-mentioned lock core bluff piece 10 correspondence positions, have the through hole 11 matching with lock core bluff piece, on the relative two sides of key body, have pit 13, the match profiles that the projection 4 of the projection 7 of the outer coding in pit and above-mentioned annular cavity 5 and Inner coding forms, the lower end of key body is wedge shape.

During use, private key is inserted in the keyhole of lock core, by the wedge shape of private key front end, lock core bluff piece is moved to the left, when private key is inserted into behind position, lock core bluff piece is just inserted in the through hole on private key, now private key just can be with movable lock core to rotate, when after private key Rotate 180 degree, private key is encountered after the projection of outer coding, because the pit on private key left side and 3 annular projections on small cylinder just in time match, the pit on private key right side matches with the projection of the outer coding that is positioned at lock body, key just can turn over 180 degree smoothly like this, just be rotated further and can start opening mechanism of lock spring bolt by private key and will lock to open and will lock unlatching.

Embodiment 2:

As shown in Figure 5, on the basis of embodiment 1, the protruding structure of Inner coding is changed, all the other are identical with embodiment 1.

Now just change and be described as follows.The projection of Inner coding by the through hole of radially opening along small cylinder, be arranged on the bearing pin 4-1 in through hole and the stage clip 15 that is sleeved on bearing pin forms, at bearing pin left end, stretch out on the periphery on small cylinder surface and have annular boss, stage clip 15 is sleeved on the upper pin between annular boss and small cylinder, on annular cavity 5 inwalls on above-mentioned lock body, have with the end face correspondence position of bearing pin left end the pit matching with pin roll end face.After private key inserts, turn simultaneously, the bearing pin left side, just by moving right in the pit on lock body, makes bearing pin right-hand member stretch out small cylinder surface, forms the projection matching with private key left surface pit.Pit depth on lock body and the length of bearing pin can determine that bearing pin right-hand member stretches out the height on small cylinder surface.

In above-described embodiment, can utilize the projection 7 of screw as outer coding, namely, after the boring of relevant position, lock body left side, tapping, will on screw, enter, adjust after the length of stretching out fixing.

The projection of Inner coding and the protruding quantity of outer coding can design as required, and the safety of the more locks of quantity is higher.

Angle between projection and the key hole of outer coding, can be as the case may be at 90-180 degree.The projection of outer coding also can be according to designing on lock body along the projection of arranging two exclusive codings on the inwall of annular cavity axial direction, angle between two rows can be in 90 degree left and right, if the angle between two rows is 30 degree or 60 degree, opening mechanism of lock spring bolt is placed between the projection of two exclusive codings.

Claims (6)

1. a novel non-marble mechanical lock, comprise lock body and be arranged on the rotatable lock core in lock body, lock core bluff piece is installed in lock body and lock core, it is characterized in that lock core (1) is "T"-shaped multidiameter, on large cylinder in "T"-shaped multidiameter, have key hole (14), and the shoulder hole on the large cylinder on "T"-shaped multidiameter and lock body (3) matches, lock body lower end is stretched out in the small cylinder lower end of "T"-shaped multidiameter, and by axial direction positioning device (6) location, the annular cavity (5) forming between small cylinder and lock body, on lock body along the projection (7) that is arranged with more than 2 outer codings on the inwall of annular cavity (5) axial direction, on the small cylinder of the "T"-shaped multidiameter in toroidal cavity, be distributed with the projection (4) of 2 above Inner codings, key barrier plate (10) be arranged on large cylinder in "T"-shaped multidiameter and the lock body that matches with large cylinder on shoulder hole in.

2. the novel non-marble mechanical lock of one according to claim 1, is characterized in that pad and hold-down screw that above-mentioned axial direction positioning device (6) is installed for axle spring collar or in lock core lower surface.

3. the novel non-marble mechanical lock of one according to claim 2, is characterized in that the angle between the center line of above-mentioned key hole (13) and the center line of the projection (7) of above-mentioned outer coding is 90-180 degree.

4. the novel non-marble mechanical lock of one according to claim 3, is characterized in that the projection (4) of the Inner coding on the small cylinder in above-mentioned "T"-shaped multidiameter is comprised of the annular projection on small cylinder surface.

5. the novel non-marble mechanical lock of one according to claim 3, it is characterized in that the projection (4) of the Inner coding on the small cylinder in above-mentioned "T"-shaped multidiameter, comprise the through hole of radially opening along small cylinder, be arranged on the bearing pin (4-1) in through hole and be sleeved on stage clip (15) composition on bearing pin, at bearing pin, stretch out on the periphery of small cylinder endmost surface and have annular boss, stage clip (15) is sleeved on the upper pin (4-1) between annular boss and small cylinder, on annular cavity (5) inwall on above-mentioned lock body, have with the end face correspondence position of bearing pin (4-1) one end the pit matching with pin roll end face, the bearing pin other end is corresponding with key hole (14).

6. a novel non-marble mechanical lock private key, be exclusively used in novel non-marble mechanical lock as a kind of in any one in claim 1-5, this private key comprises the shank of the key and key body, it is characterized in that matching at key body and above-mentioned key hole (14), on key body top and above-mentioned lock core bluff piece (10) correspondence position, have the through hole (11) matching with lock core bluff piece, on the relative two sides of key body, have pit (13), the match profiles that the projection (4) of the projection (7) of the outer coding in pit and above-mentioned annular cavity (5) and Inner coding forms, the lower end of key body is wedge shape.

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