CN210370247U - Anti-theft primary and secondary lock - Google Patents

Abstract

The utility model provides a prevent that the technique is unblanked, high strength, low material consumption's theftproof primary and secondary tool to lock, a theftproof primary and secondary tool to lock, including doubler, handle and tapered end, the tapered end is installed on the doubler, the tapered end includes sub-lock, female lock and locking body, and the sub-lock passes through the locking body and is connected with the female lock, the sub-lock lockhole is the through-hole to with female lock lockhole intercommunication, the key can pass the sub-lock and stretch into the female lock core, and turn sub-lock and female lock simultaneously. The utility model has the advantages of, tool to lock simple structure, the safety and stability, the installation of being convenient for, it is pleasing to the eye promptly to press gliding dust cover, improves tool to lock life-span and service reliability simultaneously.

Description

Anti-theft primary and secondary lock

Technical Field

The utility model relates to a tool to lock, especially a theftproof primary and secondary tool to lock.

Background

The emergency lock head of the existing intelligent lock in the market mostly adopts a one-way single-head lock body, is easy to open the door by the technology and has poor safety performance. An emergency lock head of an intelligent lock in the existing market is arranged at the lower end of an outer compound plate; the one-way single-head lock head is arranged at the eccentric position of the anti-theft lock body, the distance between the lock cylinder hole and the key socket of the compound plate is larger, and the key is difficult to align when being inserted; opening is very inconvenient in an emergency. And the lock cylinder hole dust cover of intelligence tool to lock when emergent opening, will pry the dust cover down, this kind of technology of going back a horse is very inconvenient.

Disclosure of Invention

The utility model provides a prevent that technique is unblanked, high strength, low material consumption's theftproof primary and secondary tool to lock specifically as follows:

the utility model provides a theftproof primary and secondary tool to lock, includes double plate, handle and tapered end, the tapered end is installed on the double plate, the tapered end includes sub-lock, female lock and lock head body, and the sub-lock passes through the lock head body and is connected with the female lock, the sub-lock lockhole is the through-hole to communicate with the female lock lockhole, the key can pass the sub-lock and stretch into the female lock core, and change sub-lock and female lock simultaneously.

On the basis of the technical scheme, further, the secondary lock is connected with the primary lock through the lock body, which means that the lock body integrally covers the secondary lock and the primary lock, the secondary lock and the primary lock are fixedly connected, and the lock tongue of the primary lock is exposed.

On the basis of the technical scheme, the secondary lock is connected with the primary lock through the lock body, the lock body is fixedly connected with the secondary lock, a concave part matched with the primary lock is arranged at the tail part of the secondary lock on the back surface of the lock body, and the head part of the primary lock can be embedded into the concave part to be connected with the lock body.

On the basis of the technical scheme, further, the edge of the concave part on the back of the lock head body inclines towards the concave part and is funnel-shaped.

On the basis of the technical scheme, a plurality of reinforcing ribs are further arranged on the circumferential direction of the lock head body.

On the basis of the technical scheme, the sub-lock is a pin tumbler lock.

On the basis of the technical scheme, the female lock is a pin tumbler lock.

On the basis of the technical scheme, further, a dust cover is arranged at the lock head on the compound plate and is in sliding connection with the compound plate.

On the basis of the technical scheme, the dust cover is connected with the compound plate in a sliding mode, a sliding groove is formed in the back face of the compound plate, a return spring is arranged on the back face of the dust cover, and the dust cover can move along the sliding groove by pressing down the dust cover.

On the basis of the technical scheme, the handle is movably connected with the composite plate through an oil-retaining bearing.

The utility model has the advantages of, tool to lock simple structure, the safety and stability, the installation of being convenient for, it is pleasing to the eye promptly to press gliding dust cover, improves tool to lock life-span and service reliability simultaneously.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a sectional view of the lock cylinder structure;

FIG. 3 is an exploded view of a structural part of the lock;

FIG. 4 is a perspective view of the body of the lock;

FIG. 5 is a schematic view of an integrally wrapped master-slave lock;

FIG. 6 is a cross-sectional view of FIG. 5;

FIG. 7 is a schematic view of the back of the doubler plate.

Description of the reference numerals

1-doubling plate; 2-a handle; 3-a dust cover; 4-a key; 5-primary and secondary lock heads; 51-sub-lock; 52-a female lock; 53-locking head body; 54-reinforcing ribs; 55-a recess; 56-inclined plane; 57-bolt; 11-a chute; 31-return spring.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or components having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

The technical scheme of the utility model is elaborated in detail below with the accompanying drawings:

as shown in fig. 1 and 2, the anti-theft primary-secondary lock comprises a composite plate 1, a handle 2 and a lock head 5, wherein the lock head is installed on the composite plate 1, the lock head 5 comprises a secondary lock 51, a primary lock 52 and a lock head body 53, the secondary lock 51 is connected with the primary lock 52 through the lock head body 53, a lock hole of the secondary lock 51 is a through hole and is communicated with a lock hole of the primary lock 52, and a key 4 can penetrate through the lock hole of the secondary lock 51 to extend into the lock core of the primary lock 52 and simultaneously rotate the secondary lock 51 and the primary lock 52 to realize unlocking.

As shown in fig. 5 and 6, the sub-lock 51 is connected to the main lock 52 through the lock head body 53, which means that the lock head body 53 integrally covers the sub-lock 51 and the main lock 52, and fixedly connects the sub-lock 51 and the main lock 52, and the bolt 57 of the main lock 52 is exposed. The sub-lock 51 and the female lock 52 are pin locks, and the sub-lock 51 and the female lock 52 can be pin locks with blade lock cylinders.

As shown in fig. 2, fig. 3 and fig. 4, the sub-lock 51 is connected to the main lock 52 through a lock head body 53, the lock head body 53 is fixedly connected to the sub-lock 51, a recess 55 matching with the main lock 52 is provided at the rear of the lock head body 53 at the rear of the sub-lock 51, and the head of the main lock 52 can be inserted into the recess 55 to be connected to the lock head body 53; the edge of the concave part 55 on the back of the lock body forms a slope 56 inclined towards the concave part, and the slope is funnel-shaped, so that the female lock 52 is guided to be inserted into the concave part 55 of the lock body 53 when the lock is installed and is aligned with the lock hole of the sub lock 51; a plurality of strengthening ribs 54 are arranged to lock head body 53 circumference, and strengthening rib 54 internal medicine is fretwork, and lock head body 53 front panel and doubler 1 fixed connection, strengthening rib 54 extends backward from the panel. Compared with the integrated cladding type primary-secondary lock head shown in fig. 5, the semi-cladding type primary-secondary lock head can save material consumption without reducing the strength of the lock head.

When people try to technically open the lockset, the primary-secondary lock is observed from the lock hole and is not different from the common single-head lock body, if the unlocking tool is used, the length of the primary lock 52 behind the secondary lock 51 cannot be touched, when the unlocking tool opens the secondary lock 51, the lock hole of the secondary lock 51 rotates to block the lock hole of the primary lock 52, so that an unlocking person cannot perceive the existence of the primary lock 52, and the primary lock 52 cannot be rotated only by rotating the lock hole of the secondary lock 51, and finally the lock cannot be opened by rotating the lock tongue 57.

As shown in fig. 7, a dust cover 3 is installed at a lock head 5 on the compound plate 1, the dust cover 3 is slidably connected with the compound plate 1, a sliding groove 11 is formed in the back of the compound plate 1, a return spring 31 is arranged on the back of the dust cover 3, and the dust cover 3 can move along the sliding groove 11 by pressing down.

The handle 2 is movably connected with the compound plate 1 through the oil-retaining bearing, and the oil-retaining bearing can greatly prolong the service life of the handle.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Claims (10)

1. The utility model provides a theftproof primary and secondary tool to lock, includes double plate, handle and tapered end, the tapered end is installed on the double plate, its characterized in that, the tapered end includes sub-lock, female lock and lock head body, and the sub-lock passes through the lock head body and is connected with the female lock, the sub-lock lockhole is the through-hole to communicate with the female lock lockhole, the key can pass the sub-lock and stretch into the female lock core to turn sub-lock and female lock simultaneously.

2. The anti-theft primary-secondary lock according to claim 1, wherein the secondary lock is connected with the primary lock through the lock body, which means that the lock body integrally covers the secondary lock and the primary lock, fixedly connects the secondary lock and the primary lock, and exposes the bolt of the primary lock.

3. The anti-theft primary-secondary lock according to claim 1, wherein the secondary lock is connected to the primary lock through a lock body, the lock body is fixedly connected to the secondary lock, a recess matching the primary lock is formed in the rear surface of the lock body at the rear end of the secondary lock, and the head of the primary lock can be inserted into the recess to be connected to the lock body.

4. The anti-theft composite lock according to claim 3, wherein the edge of the recess on the back of the lock body is inclined toward the recess and is funnel-shaped.

5. The anti-theft child-mother lock according to claim 4, wherein the lock body is circumferentially provided with a plurality of reinforcing ribs.

6. The anti-theft child-mother lock according to claim 1, wherein the child lock is a pin tumbler lock.

7. The anti-theft parent-child lock according to claim 1, wherein said parent lock is a pin lock.

8. The anti-theft child-mother lock according to claim 1, wherein a dust cover is installed at the lock head on the compound plate, and the dust cover is slidably connected with the compound plate.

9. The anti-theft child-mother lock according to claim 8, wherein the dust cover is slidably connected to the doubler plate, a sliding groove is formed on the back surface of the doubler plate, a return spring is arranged on the back surface of the dust cover, and the dust cover can be moved along the sliding groove by pressing down the dust cover.

10. The anti-theft child-mother lock according to claim 1, wherein the handle is movably connected to the composite plate through an oil bearing.

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