CN202718490U

CN202718490U - D-type antitheft lock

Info

Publication number: CN202718490U
Application number: CN 201220339748
Authority: CN
Inventors: 李一达; 张秋生; 张丹枫
Original assignee: Xinxiang Vocational and Technical College
Current assignee: Xinxiang Vocational and Technical College
Priority date: 2012-07-13
Filing date: 2012-07-13
Publication date: 2013-02-06
Anticipated expiration: 2022-07-13

Abstract

The utility model discloses a D-type antitheft lock. A technical scheme disclosed by the utility model has the key points as follows: the D-type antitheft lock comprises a tubular straight handle and a U-shaped lock ring, wherein one end of the U-shaped lock ring is provided with pin hole which is riveted with a U-shaped part at one end of the tubular straight handle through a pin shaft to form an outer hinge; and the tubular straight handle is hollow, two ends of the inner wall of a cavity of the tubular straight handle are respectively provided with a round tube, a lock cylinder of an spring lock is clamped between the two round tubes, the front end of the lock cylinder is provided with an eccentric shaft, a spring bolt inside the lock cylinder clamps a lock rod to complete a locking state, the end face of a key hole of the lock cylinder is additionally provided with a round steel sheet, a jointing face between the round steel sheet and the lock cylinder can be provided with a steel ball additionally to form a pressure bearing, and the lock cylinder is arranged in the middle of the tubular straight handle. The D-type antitheft lock disclosed by the utility model can be used to effectively prevent from being unlocked by violently knocking an end face at an opening to make the spring bolt fall, and in addition, the lock cylinder of the D-type antitheft lock is arranged in the middle of the tubular straight handle, so that good effects of preventing technical unlocking and preventing the lock cylinder being broken by an electric drill are achieved.

Description

A kind of D type theftproof lock

Technical field

The utility model relates to the lock field, particularly a kind of D type theftproof lock of theftproof performance excellence.

Background technology

Popular D type lock one end is hinge in the market, and other end opening, the groove on the lock ring of opening one end is blocked the process of locking of namely finishing by dead bolt.Yet use such lockset, knock by force the opening part end face and be easy to make dead bolt to fall piece and cause theftproof lock to be opened.And keyhole is located at opening part one end, adopts technological means to open and also is easy to, and adopts in addition electric drill that lock core is broken also and lock can be opened.The insurance theftproof performance of the D type theftproof lock that therefore uses at present is relatively poor.

Summary of the invention

The purpose of this utility model has provided a kind of D type theftproof lock of theftproof performance excellence, and it both had been not easy to be torn down by violence, is difficult to again adopt the technology unlocking means to open it.

The technical solution of the utility model is finished as follows, a kind of D type theftproof lock, comprise tubulose staight shank and U-shape lock ring, it is characterized in that: an end of described U-shape lock ring has a pin-and-hole to form outer hinge by the U-shaped portion part riveted joint of bearing pin and tubulose staight shank one end; Described tubulose staight shank is hollow, a pipe respectively is equipped with at its cavity inner wall two ends, and card has the lock core of a cylinder lock between two pipes, and the lock core front end has an eccentric shaft, block locking bar with the supporting dead bolt of eccentric shaft and namely finish locking state, lock core is located at the middle part of tubulose staight shank; Side at lock core keyhole is equipped with the key extension bar, and an end of this key extension bar is provided with the key draw-in groove, and sidewall has two grooves, and they become 90 degree to intersect; The outer end of described locking bar is a circular flat, during the circular flat locking and tubulose staight shank one hold level with both hands together, the plane is connected with the round bar that the cross section becomes step, middle thicker part position is provided with sliding recess, the locking bar that makes lockset be in the enable possition can not be transferred to and break away from lock body, there is a groove at thinner position, and the openings of sizes of groove matches with dead bolt, and the distal end faces at thinner position is the inclined-plane; The afterbody of described U-shape lock ring opening one end is provided with penetrating hole, and the openings of sizes in this penetrating hole is consistent with the diameter of thicker part position in the middle of the locking bar.D type theftproof lock described in the utility model is characterized in that: the keyhole end face of described lock core is added with a circular steel disc, and this circle steel disc and lock core mating face can add steel ball mineralization pressure bearing.

The utility model can effectively prevent from knocking by force the opening part end face and make dead bolt fall piece and cause theftproof lock to be opened, because locking bar interts in the penetrating hole of U-shape lock ring one end, blocked by dead bolt at the other end, violence orcible entry makes dead bolt fall piece to cause theftproof lock to be opened unlikely like this; Lock core of the present utility model places the middle part of tubulose staight shank in addition, breaks lock core and has played good effect preventing technology unlocking and electric drill, has greatly increased the theftproof performance of such lockset.

Description of drawings

Fig. 1 is the structural representation under the utility model locking state.

Fig. 2 is the structural representation after the combination of pipe and lock core in the utility model.

Fig. 3 is the structural representation of locking bar in the utility model.

Fig. 4 is the structural representation of pipe in the utility model.

Fig. 5 is the structural representation of the interior bar of key extension bar in the utility model.

The specific embodiment

Describe by reference to the accompanying drawings embodiment in detail.A kind of D type theftproof lock comprises tubulose staight shank 1 and U-shape lock ring 2, and an end of U-shape lock ring 2 has a pin-and-hole to form outer hinge by U-shaped portion part 3 riveted joints of bearing pin and tubulose staight shank 1 one ends; Tubulose staight shank 1 is hollow, pipe 11 and pipe 12 are equipped with respectively in its cavity inner wall two ends, card has the lock core 4 of a cylinder lock between pipe 11 and the pipe 12, lock core 4 front ends have an eccentric shaft, block locking bar 6 with the supporting dead bolt 5 of eccentric shaft and namely finish locking state, lock core 4 keyhole end faces can add a circular steel disc 8 in addition, and this circle steel disc 8 can add steel ball 9 mineralization pressure bearings with lock core 4 mating faces, and lock core 4 is located at the middle part of tubulose staight shank 1; Side at lock core 4 keyholes is equipped with key extension bar 10, and an end of this key extension bar 10 is provided with the key draw-in groove, and sidewall has two grooves, and they become 90 degree to intersect; The outer end of described locking bar 6 is circular flats, during the circular flat locking and tubulose staight shank 1 one hold level with both hands together, the plane is connected with the round bar that the cross section becomes step, middle thicker part position is provided with sliding recess, the locking bar 6 that makes lockset be in the enable possition can not be transferred to and break away from lock body, there is a groove at thinner position, and the openings of sizes of groove matches with dead bolt 5, and the distal end faces at thinner position is the inclined-plane; The afterbody of described U-shape lock ring 2 openings one end is provided with penetrating hole, and its openings of sizes is consistent with the diameter of thicker part position in the middle of the locking bar 6.When D type theftproof lock was in locking state, eccentric shaft can be pushed the dead bolt 5 that is pressed in locking states by spring aside when inserting key 7 rear rotation, and locking bar 6 is ejected by an end spring, and D type theftproof lock can be opened.

For preventing technology unlocking, lock core 4 is located at the middle part of tubulose staight shank 1, key 7 must be furnished with key extension bar 10 and could insert in the lock core 4, such design has increased very large difficulty to technology unlocking, one end of key extension bar 10 is provided with the key draw-in groove, and it can be clamped on key 7 front end of extension bar.Key 7 also can convenient taking-up behind locking simultaneously.For assurance key 7 can accurately insert in lock core 4 keyholes, and can do 90 degree Unscrew dead bolts 5.Two grooves are arranged on the key extension bar 10, and their types that meets at right angles intersect.

For preventing violence orcible entry, the groove of conventional U-shape lock ring one end cooperated with dead bolt make locking bar 6 into and intert in the penetrating hole of U-shape lock ring 2 one ends, violence tears down unlikely like this.Can finish locking state as long as press locking bar 6 outer surface levels with finger during locking.

For preventing from electric drill lock core 4 being broken lock is opened, lock core 4 end faces add a circular steel disc 8 in addition, and steel disc and lock core 4 mating faces can add steel ball 9 mineralization pressure bearings, if when wanting like this to break lock core 4 with electric drill, circular steel disc 8 namely can dally, thereby lock core 4 can't be broken.

Claims

1. a D type theftproof lock comprises tubulose staight shank and U-shape lock ring, it is characterized in that: an end of described U-shape lock ring has a pin-and-hole to form outer hinge by the U-shaped portion part riveted joint of bearing pin and tubulose staight shank one end; Described tubulose staight shank is hollow, a pipe respectively is equipped with at its cavity inner wall two ends, and card has the lock core of a cylinder lock between two pipes, and the lock core front end has an eccentric shaft, block locking bar with the supporting dead bolt of eccentric shaft and namely finish locking state, lock core is located at the middle part of tubulose staight shank; Side at lock core keyhole is equipped with the key extension bar, and an end of this key extension bar is provided with the key draw-in groove, and sidewall has two grooves, and they become 90 degree to intersect; The outer end of described locking bar is a circular flat, during the circular flat locking and tubulose staight shank one hold level with both hands together, the plane is connected with the round bar that the cross section becomes step, middle thicker part position is provided with sliding recess, the locking bar that makes lockset be in the enable possition can not be transferred to and break away from lock body, there is a groove at thinner position, and the openings of sizes of groove matches with dead bolt, and the distal end faces at thinner position is the inclined-plane; The afterbody of described U-shape lock ring opening one end is provided with penetrating hole, and the openings of sizes in this penetrating hole is consistent with the diameter of thicker part position in the middle of the locking bar.

2. D type theftproof lock according to claim 1, it is characterized in that: the keyhole end face of described lock core is added with a circular steel disc, and this circle steel disc and lock core mating face can add steel ball mineralization pressure bearing.