CN2791191Y - Anti-dismounting device for giving up something - Google Patents

Abstract

The utility model discloses an anti-dismounting giving up device. The correspondence contact surface of the free end of an upper fastening member (1) is provided with a groove (11). The corresponding contact surface of the free end of a matched lower fastening member (3) is provided with a convex block (31). A key groove (32) at one side of the convex block (31) is matched with a pin axle (4) which can be telescopic along the axle direction. The pin axle (4) is positioned in the grooved hole (6) of the upper fastening member (1). A dialing groove (41) in the middle part of the pin axle (4) is corresponding to the dialing block of a lock core (5). The rear part of the pin axle (4) is provided with a lug boss shoulder (42). The grooved hole (6) matched with the pin axle (4) is also provided with a lug boss shoulder (62). The pin axle (4) between the two lug boss shoulders are sheathed with a spring (43). A pin axle position limiting block (61) is arranged in the grooved hole (6). The giving up device of the utility model has the advantages of quick and convenient use, ability of effectively preventing criminals from easily opening without permission and safe and stable using performance.

Description

The anti-fetters of freeing

Technical field:

The utility model relates to constraint utensil, the especially fetters such as fetters, handcuffss that law enforcement behavior uses.

Background technology:

Fetters such as fetters, handcuffss is alert utensils of using of public security, prison, the constraint criminal of judicial department indispensability, the loose collar of existing common fetters puts and has some unidirectional teeth, on the Fixing shrink ring of fetters, be provided with the tooth lock of the unidirectional stop of band holddown spring, when user mode, the restraint ring set only can when opening fetters, lift unidirectional stop tooth with general key to the direction motion of locking, the movable ring set that makes fetters is to the direction activity of unclamping, thereby reaches the purpose of locking or unlatching.During this fetters used, the convict can be with starting the stop tooth in the tooth lock or the tooth locking device being damaged and reach the purpose of unlatching fetters easily such as article such as iron wire, waddy, cloths, uses dangerously, brings hidden danger easily.

The utility model content:

The purpose of this utility model provide a kind of safe in utilization, convenient, prevent the fetters that the convict opens easily voluntarily.

The utility model is anti-free fetters mainly comprise corresponding on, following two clamp structures and connect the rotating shaft of these two clamp structures, iron chains connecting hole and lock core, have groove tightening on the free-ended corresponding contact surface of member, suitablely down be provided with projection on the free-ended corresponding contact surface of clamp structure, one side of projection is provided with keyway, with the suitable bearing pin that can stretch vertically of establishing of keyway, this bearing pin is positioned at the slotted eye that tightens member, allocating slot is established at the bearing pin middle part, the shifting block of lock core is corresponding with this allocating slot, the bearing pin rear portion is provided with the boss shoulder, suitable with it slotted eye also is provided with the boss shoulder, on the bearing pin between these two boss shoulders, be with spring, be provided with the bearing pin limited block in the slotted eye.

Fetters of the present utility model is by tightening member and the free-ended realization locking that is laminated of following clamp structure, projection on the following clamp structure snaps in the groove that tightens member, inwardly compress the bearing pin spring, the bearing pin end is stretched in the projection keyway, rotational lock core make the lock core shifting block snap in the bearing pin allocating slot in, get final product the locking fetters, when needs are opened fetters, use the key rotary locking cylinder, the lock core shifting block is broken away from the bearing pin allocating slot, bearing pin makes its end eject from the keyway on the projection by the tension force effect of spring, can open fetters.Fetters of the present utility model uses efficient and convenient, can prevent effectively that the convict from opening easily voluntarily, and is safe in utilization, satisfies detention house and prison constraint convict's instructions for use fully.

Description of drawings:

Fig. 1 is the anti-assembling drawing of freeing the fetters locking state of the utility model.

The specific embodiment:

As shown in Figure 1, the utility model fetters comprises corresponding upper and lower two clamp structures 1,3 and connects rotating shaft 2, iron chains connecting hole 7 and the lock core 5 of these two clamp structures, have groove 11 tightening on the member 1 free-ended corresponding contact surface, be provided with projection 31 on the clamp structure 3 free-ended corresponding contact surfaces down with this groove is suitable, projection 31 has keyway 32 with bearing pin 4 corresponding these sides, when locking, the end of bearing pin 4 is stretched in the keyway 32, for locking, unlatching convenience, the deep length in the degree of depth of keyway 32 and bearing pin 4 ends will suit.Bearing pin 4 is positioned at slotted eye 6 and the telescopic moving vertically that tightens member 1, and bearing pin 4 is for having the axis body of shoulder, and the middle part of bearing pin has allocating slot 41, and the shifting block 51 of lock core 5 is corresponding with this allocating slot 41, can snap in or break away from allocating slot 41.Bearing pin 4 rear portions are with spring 43, spring 43 is stuck between two boss shoulders 42,62, boss shoulder 42 is located at bearing pin 4 rear portions, and another boss shoulder 62 is that bearing pin 4 can outwards eject easily when unblanking under the effect of spring 43 on the corresponding slotted eye 6 that tightens member with it.For prevent that bearing pin 4 from all ejecting, and can install spacer pin or limited block 61 in slotted eye 6 in slotted eye 6.

Claims (1)

1, a kind of anti-fetters of freeing, mainly comprise corresponding on, following two clamp structures (1) (3) and connect the rotating shaft (2) of these two clamp structures, iron chains connecting hole (7) and lock core (5), it is characterized in that: have groove (11) tightening on the free-ended corresponding contact surface of member (1), suitablely down be provided with projection (31) on the free-ended corresponding contact surface of clamp structure (3), one side of described projection (31) is provided with keyway (32), with the suitable bearing pin (4) that can stretch vertically of establishing of keyway (32), this bearing pin (4) is positioned at the slotted eye (6) that tightens member (1), allocating slot (41) is established at described bearing pin (4) middle part, the shifting block (51) of lock core (5) is corresponding with this allocating slot (41), described bearing pin (4) rear portion is provided with boss shoulder (42), suitable with it slotted eye (6) also is provided with boss shoulder (62), on the bearing pin (4) between these two boss shoulders, be with spring (43), be provided with bearing pin limited block (61) in the described slotted eye (6).

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