CN202970134U - Anti-theft outer tapered ned of exterior door lock - Google Patents

Abstract

The utility model provides an anti-theft outer tapered ned of an exterior door lock, and the anti-theft outer tapered ned of the exterior door lock comprises a lock core device and a key. The structure of the lock core device includes that a rotating shaft is arranged on a lock core body in a horizontal direction, a first bevel gear wheel is arranged at the tail end of the rotating shaft, a lock rod which is plugged into the lock body is arranged at the front end of the rotating shaft, and a lock core is arranged on the lock body in a vertical mode. The lock core is composed of an inner lock core and an outer lock core, the inner lock core is in connection inside the outer lock core in a rotatable mode, a second bevel gear wheel is arranged at the front end of the lock core, and the first cone gear is meshed with the second cone gear. A ratchet wheel is sleeved on the inner lock core, and a pawl is arranged on the outer lock core. The ratchet wheel and the pawl form a ratchet wheel-pawl structure. A key hole of the inner lock core is formed downward vertically, and the structure of the key includes a key body, and the tail end of the key body end is hinged with a sleeve. A narrow groove capable of containing the key is formed in a door when the anti-theft outer tapered ned is installed, due to the facts that the key hole of the inner lock core is formed downward vertically, the interior of the lock core cannot be seen and the lock cannot be pried by other tools, the purpose of anti-theft is achieved.

Description

The antitheft outside tapered end of rim lock

Technical field

The utility model relates to rim lock, especially the antitheft outside tapered end of rim lock.

Background technology

Present rim lock is comprised of lock body, the outside tapered end of lock box, belt lock tongue, and outside tapered end is comprised of lock core, key, and after lock core was installed, keyhole directly was emerging in face outdoors, is easy to by keyhole with tamper tool or opens door lock, and is non-anti-theft.

Summary of the invention

For the outside tapered end that solves existing rim lock directly is exposed at the shortcoming of face outdoors, the utility model proposes the antitheft outside tapered end of rim lock, reach pick-proof, antitheft purpose.

For this reason, the technical solution of the utility model is: the antitheft outside tapered end of rim lock, formed by lock core device, key, the structure that it is characterized in that lock core device is: the rotating shaft that horizontal direction is placed is housed on plug body, the rotating shaft tail end is equipped with the first conical gear, and the rotating shaft front end is connected with the locking bar that inserts lock body; Lock core vertically is contained on plug body, and lock core is comprised of internal cylinder and outer lock core, and internal cylinder is rotating to be connected in outer lock core, and the internal cylinder front end is equipped with the second conical gear, the first conical gear and the engagement of the second conical gear; On internal cylinder, cover has ratchet, and outer lock core is provided with ratchet, and ratchet and pawl consists of ratchet and pawl arrangement; Keyhole on internal cylinder vertically downward;

The structure of key is: comprise key body, the key body tail end is hinged with sleeve.

Beneficial effect: when this antitheft outside tapered end is installed, have the narrow groove that holds key on door, insert from bottom to top key body, rotation is unblanked.Because the keyhole on lock core is downward, can not see that lock core is inner, can't pry open with other instrument, reach antitheft purpose.

Description of drawings

Fig. 1 is structural representation of the present utility model.

The specific embodiment

The structure of the antitheft outside tapered end of rim lock as shown in Figure 1, formed by lock core device, key, the structure of lock core device is: the rotating shaft 8 that horizontal direction is placed is housed on plug body 1, and the rotating shaft tail end is equipped with the first conical gear 9, and the rotating shaft front end is connected with the locking bar 7 that inserts lock body; Lock core vertically is contained on plug body 1, and lock core is comprised of internal cylinder 3 and outer lock core 4, and internal cylinder 3 is rotating to be connected in outer lock core 4, and the internal cylinder front end is equipped with the second conical gear 2, the first conical gears 9 and the second conical gear 2 engagements; On internal cylinder, cover has ratchet 5, and outer lock core is provided with ratchet 6, and ratchet 5 and ratchet 6 consist of ratchet and pawl arrangement; Keyhole on internal cylinder 3 vertically downward;

The structure of key is: comprise key body 10, the key body tail end is hinged with sleeve 11.

Claims (1)

1. the antitheft outside tapered end of rim lock, formed by lock core device, key, the structure that it is characterized in that lock core device is: the rotating shaft that horizontal direction is placed is housed on plug body, and the rotating shaft tail end is equipped with the first conical gear, and the rotating shaft front end is connected with the locking bar that inserts lock body; Lock core vertically is contained on plug body, and lock core is comprised of internal cylinder and outer lock core, and internal cylinder is rotating to be connected in outer lock core, and the internal cylinder front end is equipped with the second conical gear, the first conical gear and the engagement of the second conical gear; On internal cylinder, cover has ratchet, and outer lock core is provided with ratchet, and ratchet and pawl consists of ratchet and pawl arrangement; Keyhole on internal cylinder vertically downward;

The structure of key is: comprise key body, the key body tail end is hinged with sleeve.

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