CN212562814U

CN212562814U - Anti-theft device for door lock

Info

Publication number: CN212562814U
Application number: CN202020598635.7U
Authority: CN
Inventors: 姜武
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2021-02-19
Anticipated expiration: 2030-04-16

Abstract

The utility model discloses a door lock burglar alarm, which comprises a door seam clamping piece and a hanging hammer, wherein a small empty groove is arranged at the upper part in the door seam clamping piece, a large empty groove is arranged at the inner lower part in the door seam clamping piece, a round convex block is arranged at the rear end of the hanging hammer, a chain is arranged in front of the hanging hammer, connecting rings are respectively arranged at two ends of the chain, the connecting ring at one end of the chain is fixedly connected with the hanging hammer, the connecting ring at the other end of the chain is fixedly connected with the door seam clamping piece, the connecting part of the connecting ring and the door seam clamping piece is positioned above the small empty groove, and a small bell is arranged at the middle part of the chain. Unless the door lock is forcibly destroyed, it also makes a noise, which is startled to the people in the room.

Description

Anti-theft device for door lock

Technical Field

The utility model relates to an anti-theft technical field specifically is a lock alarm.

Background

Door locks are devices used, as the name implies, to lock a door to prevent others from opening the door. The door locks are classified into a plurality of categories, the requirements on the door locks are different in each occasion, and the anti-theft door lock is generally used in ordinary families, and is high in safety and low in price.

Now, theft in the late-night room often occurs in various areas, and particularly, a tourist who is going to play at home is often locked and taken in a state that a tenant or the tourist is asleep in a hotel or a place where a grade is not high. Therefore, the utility model provides a door lock alarm to solve the problem that proposes among the above-mentioned background art.

Disclosure of Invention

An object of the utility model is to provide a lock alarm to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a door lock alarm, includes crack card, hanging hammer, little dead slot is seted up on the upper portion in the crack card, and big dead slot is seted up to the lower part in the crack card, hangs the circular lug of hammer rear end installation, and the place ahead of hanging hammer sets up the chain, and the go-between is installed respectively at the chain both ends, and the go-between fixed connection hanging hammer of chain one end, the go-between fixed connection crack card of the chain other end, and the junction of go-between and crack card is located little dead slot top, chain mid-mounting small bell.

As a further proposal of the utility model, the manufacturing material of the door seam clamping piece is 304 stainless steel.

As a further aspect of the present invention, the hammer is made of a polymer material.

As a further proposal of the utility model, the round convex block, the chain, the connecting ring and the small bell are made of 304 stainless steel.

As a further proposal of the utility model, the small empty groove is trapezoidal.

As a further aspect of the present invention, the large empty groove is rectangular.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a under the dead circumstances of hardness and lock spring bolt lock of stainless steel crack card self, hug closely under the reinforcement circumstances of door plant by hanging the hammer outside again, the card is died when forming two fixed points, and guarantees that the door is not opened by outside personnel, as long as the spring bolt is not extracted the locked groove completely, outdoor stealing personnel are the protection that can't avoid the alarm, unless strength destroys the lock, nevertheless also can make the noise like this, frightened indoor people.

2. The utility model discloses a space part of door plant and door pocket has been filled to the self thickness of crack card, has also prevented the thief and has wanted to open the spring bolt possibility with the thin slice, if someone wants to destroy the lock outdoors, also can rock small bell, touches small bell and makes a sound, arouses indoor personnel's alertness.

Drawings

Fig. 1 is a schematic structural diagram of a door lock burglar alarm.

Fig. 2 is a schematic structural diagram of a large empty groove in a door lock burglar alarm.

Fig. 3 is a schematic structural view of a circular bump in a door lock burglar alarm.

In the figure: 1. a door seam card; 2. a large empty groove; 3. a small empty slot; 4. hanging a hammer; 5. a circular bump; 6. a chain; 7. a connecting ring; 8. a bell.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, in the embodiment of the present invention, a door lock burglar alarm includes a door seam clamp 1 and a hanging hammer 4, the manufacturing material of the door seam clamping piece 1 is 304 stainless steel, a small empty groove 3 is arranged at the upper part in the door seam clamping piece 1, the small empty groove 3 is trapezoidal, the large empty groove 2 is arranged at the lower part in the door seam clamping piece 1, the large empty groove 2 is rectangular, the hanging hammer 4 is made of high polymer materials, the circular lug 5 is arranged at the rear end of the hanging hammer 4, the chain 6 is arranged in front of the hanging hammer 4, the connecting rings 7 are respectively arranged at the two ends of the chain 6, the connecting ring 7 at one end of the chain 6 is fixedly connected with the hanging hammer 4, the connecting ring 7 at the other end of the chain 6 is fixedly connected with the door seam clamping piece 1, the connecting position of the connecting ring 7 and the door seam clamping piece 1 is positioned above the small empty groove 3, the small bell 8 is arranged in the middle of the chain 6, and the round convex block 5, the chain 6, the connecting ring 7 and the small bell 8 are all made of 304 stainless steel.

The utility model discloses a theory of operation is: under the state that the door was opened, hug closely the spring bolt groove part on the door pocket with big dead slot 2 on the crack card 1, both coincidences cover, then close the door, the spring bolt of lock can bite big dead slot 2 on the crack card 1, with circular convex block 5 along the landing in the little dead slot 3 on the crack card 1, the two chucking that slowly falls this moment, indoor every board surface can be hugged closely in the outside of hanging hammer 4 this moment, can tightly block.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a door lock alarm, its characterized in that, including crack card (1), hanging hammer (4), little dead slot (3) are seted up on upper portion in crack card (1), big dead slot (2) are seted up to lower part in crack card (1), circular lug (5) are installed to hanging hammer (4) rear end, hanging hammer (4) the place ahead sets up chain (6), go-between (7) are installed respectively at chain (6) both ends, go-between (7) fixed connection hanging hammer (4) of chain (6) one end, go-between (7) fixed connection crack card (1) of the chain (6) other end, and the junction of go-between (7) and crack card (1) is located little dead slot (3) top, chain (6) mid-mounting small bell (8).

2. Door lock alarm according to claim 1, characterised in that the slot card (1) is made of 304 stainless steel.

3. The door lock burglar alarm according to claim 1, characterized in that said hanging hammer (4) is made of polymer material.

4. The door lock burglar alarm according to claim 1, wherein said round protrusion (5), said chain (6), said coupling ring (7) and said bell (8) are made of 304 stainless steel.

5. A door lock alarm according to claim 1, characterised in that said small recess (3) is trapezoidal in shape.

6. A door lock alarm according to claim 1, characterised in that said large hollow channel (2) is rectangular in shape.