CN102720401A

CN102720401A - Fence lock

Info

Publication number: CN102720401A
Application number: CN2012102451961A
Authority: CN
Inventors: 刘进平; 刘水旺; 张太平; 张士杰; 余利波; 夏良洪; 雷钧; 王杰
Original assignee: Changcun Coal Mining of Shanxi Luan Environmental Energy Development Co Ltd
Current assignee: Changcun Coal Mining of Shanxi Luan Environmental Energy Development Co Ltd
Priority date: 2012-07-16
Filing date: 2012-07-16
Publication date: 2012-10-10

Abstract

A fence lock consists of a lock body, a lock core, a lock bolt, a lock chain and a key, wherein the lock body has a cylindrical lock cavity, an internal thread is arranged on the wall of the lock cavity, and a through hole running through the lock cavity is formed at one end of the lock body; the lock bolt is a dumbbell-shaped cylinder with two thick ends and a fine middle section and is inserted into the through hole in the lock body; the lock core is a cylinder, the external part of which is provided with an external thread, is arranged in the lock cavity and matched with the internal thread of the lock cavity through the external thread, and can move helically front and back in the lock cavity; a U-shaped clamp is movably connected at the front end of the lock core, the lock core moves to the front end of the lock cavity, the U-shaped clamp is clamped into the middle section of the lock bolt for clamping the lock bolt, a connecting part is arranged on the rear end surface of the lock core, and the key is connected and matched with the connecting part on the lock core; and one end of the lock chain is fixed on the lock body, and the other end of the lock chain is connected with the lock bolt.

Description

The fence lock

Technical field

The present invention relates to a kind of lockset, particularly relate to a kind of lockset that closed fence uses under the coal mine that is used for.

Background technology

The tunnel that all are airtight under the coal mine, windbreak front and return airway, high gas zone and part temporarily do not allow to get into all sets full section standardization fence, is strayed into this zone accident that meets accident to prevent personnel.Simultaneously, for ease watt inspection person, ventilation professional get in the fence closed area and check, work such as reparation, on fence, all be installed on a body, and use iron pad lock to block.Block with padlock and to have several drawbacks: because underground air is moist, and has coal dust, padlock is easy to get rusty or is stopped up by coal dust, to such an extent as to can't open; An exploiting field under normal circumstances has tens of roads fence, because padlock is corresponding one by one with key, so patrolman's per tour in each exploiting field all must carried a large amount of keys, very inconvenience.

Summary of the invention

The purpose of this invention is to provide a kind of fence lock, get rusty easily, stopped up by coal dust with common padlock under the solution coal mine, and the problem that needs a large amount of keys.

Fence lock of the present invention is made up of lock body, lock core, locking bolt, chain and key, and said lock body has a columniform lock chamber, and lock chamber wall is provided with internal thread, is provided with one at lock body one end and runs through the through hole of locking the chamber; Said locking bolt is the dumbbell shaped cylinder that two ends are thick, the stage casing is thin, is inserted in the through hole on the lock body; Said lock core is that an outside is provided with externally threaded cylinder, is installed in the lock chamber, through external screw thread and lock chamber screw-internal thread fit; Spiral moves before and after in the lock chamber; Front end at lock core is connected with a U type card, and lock core moves to lock chamber front end, and U type card snaps in the stuck locking bolt in locking bolt stage casing; On the lock core rear end face, be provided with a junction, the connecting portion on said key and the said lock core is connected; Said chain one end is fixed on the lock body, and the other end is connected with locking bolt.

Wherein, can one plug be installed in the rear end in said lock chamber, plug middle part be provided with one can insert said key keyhole.The setting of plug both can guarantee the insertion of key, prevented that again excessive screw key from causing the lock core accident to drop out.

Further, in said lock chamber, be provided with a slide rail, said U type card is movably arranged in the said slide rail, and is spacing by slide rail, prevents that the U type is stuck in rotation in the lock chamber, can't block locking bolt.

An end that connects chain at said locking bolt is provided with a protuberance, can prevent to fall in the lock body when locking bolt from inserting through hole.

Described connecting portion is one to be fixed on the polygonal nut on the lock core rear end face, and said key front end is provided with an inner polygon groove, and said polygonal nut inserts in the inner polygon groove of key front end.Perhaps, described connecting portion is one to be located at the polygon groove on the lock core rear end face, and said key front end is and the polygon of said polygon groove fit, inserts in the polygon groove on the lock core rear end face.

During use, chain is enclosed within on the fence, locking bolt inserts in the through hole on the lock body, pulls the connecting portion rotation on the lock core with key, and the screw thread reach of lock core in lock body promotes U type card and block locking bolt.When unblanking, pull the connecting portion on the lock core in the other direction, lock core is extracted U type card, extracts locking bolt, and the fence lock is opened.

Fence lock construction of the present invention is simple, can prevent effectively that lockset from getting rusty and coal dust gets in the lockset, influences the unlatching of lockset.

Fence lock key of the present invention is general, and administrative staff use a key just can open all fence in one's respective area, and are easy to use.Simultaneously, the fence lock key of zones of different is not general, can prevent to open by mistake to be strayed into.Key is by the personal management, and other staff can not open fence lock, vi have high safety.

Description of drawings

Fig. 1 is the structural representation of embodiment 1 fence lock.

Fig. 2 is the lock core structure sketch map of fence lock.

Fig. 3 is the structural representation of embodiment 2 fence lock.

The specific embodiment

Embodiment 1

Structure such as Fig. 1 of fence lock are made up of lock body 11, lock core 12, locking bolt 13, chain 14 and supporting with it key 20.Lock body 11 is a tubulose, and its inside is a columniform lock chamber 22, on the wall of lock chamber, is provided with internal thread, and lock body 11 1 ends are provided with one and vertically run through the through hole 21 of locking chamber 22.Locking bolt 13 is the dumbbell shaped cylinder that two ends are thick, the stage casing is thin, is inserted in the through hole 21 on the lock body 11.The structure of lock core 12 such as Fig. 2 are cylinders than lock body 11 weak points, and its outside is provided with external screw thread, are installed in the lock chamber 22, and with the screw-internal thread fit in lock chamber 22, the front and back spiral moves in lock chamber 22.Front end at lock core 12 is connected with a U type card 15, and when lock core 12 moved to lock chamber 22 front ends, U type card 15 snapped in the stuck locking bolt in locking bolt 13 stage casings.On lock core 12 rear end faces, be provided with a six-sided nut connecting portion 16.Chain 14 1 ends are fixed on the lock body 11, and the other end is connected with locking bolt 13.The front end of key 20 be provided with one with lock core 12 on the interior hexagonal indentations that cooperates of six-sided nut connecting portion 16, six-sided nut connecting portion 16 can insert in the interior hexagonal indentations of key 20 front ends.

During use, chain 14 is enclosed within on the fence, in the through hole 21 that locking bolt 13 inserts on the lock body 11, pulls six-sided nut connecting portion 16 rotations on the lock core 12 with key 20, the screw thread reach of lock core 12 in lock body 11 promotes U type card 15 and blocks locking bolt 13.When unblanking, pull six-sided nut connecting portion 16 in the other direction, lock core 12 is extracted U type card 15, extracts locking bolt 13, and the fence lock is opened.

Embodiment 2

Structure such as Fig. 3 of fence lock are made up of lock body 11, lock core 12, locking bolt 13, chain 14 and supporting with it key 20.Lock body 11 is a tubulose, and its inside is a columniform lock chamber 22, on the wall of lock chamber, is provided with internal thread, and lock body 11 1 ends are provided with one and vertically run through the through hole 21 of locking chamber 22.Locking bolt 13 is the dumbbell shaped cylinder that two ends are thick, the stage casing is thin, and at one end is provided with a protuberance 19, is inserted in the through hole 21 on the lock body 11.Lock core 12 is a cylinder than lock body 11 weak points, and its outside is provided with external screw thread, is installed in the lock chamber 22, and with the screw-internal thread fit in lock chamber 22, the front and back spiral moves in lock chamber 22.Front end at lock core 12 is connected with a U type card 15, and U type card 15 is movably arranged in the slide rail 18 in the lock chamber 22, and when lock core 12 moved to lock chamber 22 front ends, U type card 15 snapped in the stuck locking bolt in locking bolt 13 stage casings along slide rail 18 reaches.The rear end face of lock core 12 is provided with hexagonal indentations connecting portion 16 in.Seal with a plug 17 rear end in lock chamber 22, plug 17 middle parts be provided with one can insert key keyhole 23.Chain 14 1 ends are fixed on the lock body 11, and the other end is connected on the protuberance 19 of locking bolt 13.The front end of key 20 be with lock core 12 on the hexagonal shape that cooperates of interior hexagonal indentations connecting portion 16, in can being inserted in the hexagonal indentations connecting portion 16.

Claims

1. a fence is locked; Form by lock body (11), lock core (12), locking bolt (13), chain (14) and key (20); It is characterized in that said lock body (11) has a columniform lock chamber (22); Lock chamber wall is provided with internal thread, is provided with one at lock body (11) one ends and runs through the through hole (21) of locking chamber (22); Said locking bolt (13) is the dumbbell shaped cylinder that two ends are thick, the stage casing is thin, is inserted in the through hole (21) on the lock body (11); Said lock core (12) is that an outside is provided with externally threaded cylinder; Be installed in the lock chamber (22); Through external screw thread and lock chamber (22) screw-internal thread fit, the front and back spiral moves in lock chamber (22), is connected with a U type card (15) at the front end of lock core (12); Lock core (12) moves to lock chamber (22) front end; U type card (15) snaps in the stuck locking bolt in locking bolt (13) stage casing, on lock core (12) rear end face, is provided with a junction (16), and the connecting portion (16) on said key (20) and the said lock core (12) is connected; Said chain (14) one ends are fixed on the lock body (11), and the other end is connected with locking bolt (13).

2. fence according to claim 1 lock is characterized in that in the rear end in said lock chamber (22) plug (17) being installed, plug (17) middle part be provided with one can insert said key keyhole (23).

3. fence lock according to claim 1 is characterized in that in said lock chamber (22), being provided with a slide rail (18), and said U type card (15) is movably arranged in the said slide rail (18).

4. fence lock according to claim 1 is characterized in that an end that connects chain (14) at said locking bolt (13) is provided with a protuberance (19).

5. fence lock according to claim 1; It is characterized in that said connecting portion (16) is one to be fixed on the polygonal nut on lock core (12) rear end face; Said key (20) front end is provided with an inner polygon groove, and said polygonal nut inserts in the inner polygon groove of key (20) front end.

6. fence lock according to claim 1; It is characterized in that said connecting portion (16) is one to be located at the polygon groove on lock core (12) rear end face; Said key (20) front end is and the polygon of said polygon groove fit, inserts in the polygon groove on lock core (12) rear end face.