CN201056918Y

CN201056918Y - Anti-theft chain lock

Info

Publication number: CN201056918Y
Application number: CNU2007200239944U
Authority: CN
Inventors: 荣刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-06-25
Filing date: 2007-06-25
Publication date: 2008-05-07
Anticipated expiration: 2017-06-25

Abstract

The utility model discloses an anti-theft chain lock, which comprises a lock body, a key, and a lock chain actively connected with the lock body. A lock core is arranged inside the lock body, a lock header connected with the lock body is arranged at the other end of the lock chain, a lock sleeve is arranged outside the lock body, the lock sleeve is fixed and connected with the lock body, the lock chain extends out of one end of the lock sleeve, a baffle plate is arranged at the other end of the lock sleeve, a through hole is arrange on the baffle plate far from the position which is relative to the lock hole of the lock core, and the key passes through the through hole and is inserted into the lock hole of the lock core, the utility model can prevent the lock body from being destroyed by strong external force, prevent the lock hole from being directly exposed outside to be easy to be blocked or opened by a universal key, and the lock chain is uneasy to be cut and destroyed by a wire cutter or the external force, and thereby the anti-theft function can be realized.

Description

A kind of mild steel safeguard chain lock

Technical field

The utility model belongs to a kind of lockset, especially relates to a kind of mild steel safeguard chain lock that has chain.

Background technology

Lockset plays the important function of safe antitheft in people's production, life, its multifarious, a great variety, as padlock, pin formula lock,, insert formula lock, Steel wire rope lock, chain lock etc., complete.Wherein chain lock is because its plasticity is strong, bending freely, it is big that lock is striden the space, now increasing vehicle and bigger Men Shangjun can see, but this lock is generally an end that has tapered end and directly inserts the people in the shell of the other end that connects chain, easily by outside destroy, and because lockhole is directly exposed to the outside, easily blocked or master key is opened, the while chain is often thin or adopt a plurality of chain links to connect, easily cut off,, thereby lose its antitheft effect also easily by outside destroy by cutting pliers.

Summary of the invention

Technical problem to be solved in the utility model provides sound construction, a kind of mild steel safeguard chain lock survivable and easy to use, and not only chain structure is firm, and when using, must use private key just can open, and lockhole is also difficult to be blocked.

For addressing the above problem, the utility model by the following technical solutions:

A kind of mild steel safeguard chain lock, comprise lock body, key and the chain that flexibly connects with lock body, be provided with lock core in the described lock body, the other end of described chain is provided with the tapered end that is connected with lock body, it is characterized in that: the outside of described lock body is provided with lock tube, and lock tube is fixedlyed connected with lock body, described chain stretches out from an end of lock tube, the other end of described lock tube is provided with dividing plate, and away from being provided with through hole with the corresponding position of the lockhole of lock core, described key passes in the lockhole that through hole is inserted into lock core on the described dividing plate.

Below be a kind of improvement of the utility model to such scheme:

Through hole on the described dividing plate is an arc, and described key is a bow-shaped structural, and the through hole that described key passes arc is inserted in the lockhole of lock core.

Described chain is connected and composed by some latch fittings, and an end of described latch fitting is provided with boss, the other end is provided with the groove that can hold boss, is respectively equipped with pin-and-hole on described boss and the groove, and described some latch fittings are rotationally connected from beginning to end by the pin that is through in the pin-and-hole.

Described lock body is provided with deep gouge, and the lock tube of the opening correspondence of described deep gouge is provided with fairlead, and described tapered end can pass fairlead and enter in the deep gouge, and described lock core is provided with the dead bolt that tapered end is pinned.

Beneficial effect

The utility model adopts above technical scheme; outside at lock body is provided with lock tube; protected lock body; make it avoid being destroyed by outside hard power; the setting of the dividing plate in the lock tube and the structure of key design archwise; prevented that lockhole is directly exposed to that the outside is easily blocked or master key is opened; structure before chain has been cancelled by some chain links connections; change into by some latch fittings and connecting and composing; latch fitting is made by steel part or cast member; its intensity is higher, is difficult for being cut off by cutting pliers or by outside destroy, thereby has played its antitheft effect.

Below in conjunction with drawings and Examples the utility model is further described:

Description of drawings

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

Accompanying drawing 2 be in the accompanying drawing 1 A-A to sectional view;

Accompanying drawing 3 is the structural representation of latch fitting among the utility model embodiment.

The specific embodiment

Embodiment; as shown in Figure 1; a kind of mild steel safeguard chain lock; comprise lock body 1; arched key 7 and the chain that flexibly connects with lock body 1; be provided with lock core 4 in the described lock body 1; the other end of described chain is provided with the tapered end 12 that is connected with lock body 1; the outside of described lock body 1 is provided with lock tube 2; lock tube 2 is fixedlyed connected with lock body 1; protected lock body; make it avoid being destroyed by outside hard power; described chain stretches out from an end of lock tube 2; described lock body 1 is provided with deep gouge 3; the lock tube 2 of the opening correspondence of described groove 3 is provided with fairlead 9; described tapered end 12 passes fairlead 9 and enters in the deep gouge 3; described lock core 4 is provided with the dead bolt 5 that tapered end 12 can be pinned; the other end of described lock tube 2 is provided with dividing plate 6; as shown in Figure 2; on the described dividing plate 6 away from being provided with through hole 8 with the corresponding position of the lockhole of lock core 4; described key 7 passes in the lockhole that through hole 8 is inserted into lock core 4; prevented that lockhole is directly exposed to the outside; be difficult for being blocked or master key is opened; described chain is connected and composed by some latch fittings 10; as shown in Figure 3; one end of described latch fitting 10 is provided with boss 13; the other end is provided with the groove 14 that can hold boss 13, is respectively equipped with pin-and-hole 15 on described boss 13 and the groove 14, and described some latch fittings 10 are rotationally connected by pin 11 head and the tail that are through in the pin-and-hole 15; latch fitting is made by steel part or cast member; its intensity is higher, is difficult for being cut off by cutting pliers or by outside destroy, thereby has played its antitheft effect.

Claims

1. a mild steel safeguard chain is locked, comprise lock body (1), key (7) and the chain that flexibly connects with lock body (1), be provided with lock core (4) in the described lock body (1), the other end of described chain is provided with the tapered end (12) that is connected with lock body (1), it is characterized in that: the outside of described lock body (1) is provided with lock tube (2), lock tube (2) is fixedlyed connected with lock body (1), described chain stretches out from an end of lock tube (2), the other end of described lock tube (2) is provided with dividing plate (6), described dividing plate (6) is gone up and is provided with through hole (8) away from the corresponding position of lockhole with lock core (4), and described key (7) passes through hole (8) and is inserted in the lockhole of lock core (4).

2. a kind of mild steel safeguard chain lock according to claim 1, it is characterized in that: the through hole (8) on the described dividing plate (6) is an arc, and described key (7) is a bow-shaped structural, and the through hole (8) that described key (7) passes arc is inserted in the lockhole of lock core (4).

3. a kind of mild steel safeguard chain lock according to claim 1 and 2, it is characterized in that: described chain is connected and composed by some latch fittings (10), one end of described latch fitting (10) is provided with boss (13), the other end is provided with the groove (14) that can hold boss (13), be respectively equipped with pin-and-hole (15) on described boss (13) and the groove (14), described some latch fittings (10) are rotationally connected by pin (11) head and the tail that are through in the pin-and-hole (15).

4. a kind of mild steel safeguard chain lock according to claim 3, it is characterized in that: described lock body (1) is provided with deep gouge (3), the lock tube (2) of the opening correspondence of described deep gouge (3) is provided with fairlead (9), described tapered end (12) passes fairlead (9) and enters in the deep gouge (3), and described lock core (4) is provided with the dead bolt (5) that tapered end (12) can be pinned.