CN201130837Y

CN201130837Y - Anti-theft device for cable

Info

Publication number: CN201130837Y
Application number: CNU2007200619002U
Authority: CN
Inventors: 李鸿亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-12-21
Filing date: 2007-12-21
Publication date: 2008-10-08
Anticipated expiration: 2017-12-21

Abstract

The utility model discloses a cable anti-theft device, comprising an upper housing and a lower housing, wherein the lower housing is connected with the upper housing hinge; the upper housing and the lower housing are shown as tube shape when closed; a theftproof clamp is arranged at the inner wall of the upper housing; the theftproof clamp comprises an elastic connecting rod and a locking piece arranged on the terminal of the elastic connecting rod; an oblique under cut is arranged at the bottom of the locking piece. The cable anti-theft device has the advantages of ingenious and rational structure and convenient use, which is an electric cable anti-theft device with theftproof effect widely arranged in electric cable protecting pipe.

Description

A kind of cable theft-prevention device

Technical field

The utility model relates to a kind of anti-theft device, particularly a kind of cable theft-prevention device that is arranged in the cable protecting pipe.

Background technology

Usually; the cable that is imbedded in the underground piping is directly to be sleeved in the cable protecting pipe; owing to do not take safeguard measure; make some lawless persons have an opportunity to take advantage of like this; these lawless persons utilize tools used in crime such as scissors to cut off cable and just protect behind two and can be easily cable to be released in the protecting pipe and steal copper cash in the cable to seek ill-gotten gains; their this illegal activities have greatly damaged the people's public interest, and national wealth is suffered a loss.

Summary of the invention

In order to overcome the deficiencies in the prior art, the utility model provides a kind of structure ingenious, reasonable and easy to use and can prevent the cable theft-prevention device that cable is stolen by the lawless person.

The technical scheme that its technical problem that solves the utility model adopts is:

A kind of cable theft-prevention device, comprise upper shell and the lower house that is connected with the upper shell hinge, when this upper shell and lower house are closed in a tubular form, be provided with theft-prevention clamp in upper enclosure inner wall, described theft-prevention clamp comprises elastic link and is arranged on the locking member of elastic link end that described locking member bottom is provided with the oblique tooth of stinging.

In the utility model, described elastic link is made up of torsionspring and adjusting connecting rod.

In the utility model, described locking member and elastic link flexibly connect by connecting axle, have fastener to be inlaid in the link axle and with the upper shell outer wall locking member are located.

The beneficial effects of the utility model are: during use, open, lower house, cable is put in this product, remove fastener, elastic link on the theft-prevention clamp is clamped cable under the effect of elastic reset power, again this product is advanced in the protecting pipe of cable, when the lawless person when cable one end is firmly pullled cable, cable then can to locking member bottom oblique sting applying frictional force and drive elastic link and moving downward of tooth, to go up when making locking member extruded cable line, lower house backs down, because it is last, lower house is sleeved in the protecting pipe, and and the gap between the protecting pipe is limited, when last, after lower house withstands protecting pipe, pull at cable more, stinging tooth and cable will be held tightlyer under the locking member gone up simultaneously, lower house also can with protecting pipe inwall extruding more tightly, make cable not stolen, played good antitheft effect by the lawless person.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the structural representation after the utility model is opened;

Fig. 2 is the end view after the utility model closure;

Structural representation when Fig. 3 is the utility model use;

Fig. 4 is the structural representation of the utility model when not using.

Embodiment

With reference to Fig. 1, Fig. 2, Fig. 3, a kind of cable theft-prevention device, comprise upper shell 1 and the lower house 2 that is connected with upper shell 1 hinge, when this upper shell 1 and lower house 2 are closed in a tubular form, be provided with theft-prevention clamp 3 at upper shell 1 inwall, described theft-prevention clamp 3 comprises elastic link 4 and is arranged on the locking member 5 of elastic link 4 ends that described locking member 5 bottoms are provided with the oblique tooth of stinging.

In the utility model, elastic link 4 is made up of torsionspring 41 and adjusting connecting rod 42, can regulate the length of self by regulating connecting rod 42, so that adapt to the cable of different thicknesses.

As shown in Figure 4, in the utility model, locking member 5 and elastic link 4 flexibly connect by connecting axle, have fastener 6 to be inlaid in the link axle and with upper shell 2 outer walls locking member 5 are located.

Operation principle of the present utility model is: during use, earlier the upper shell 1 and the lower house 2 of alarm are opened, cable a is put in this product, then fastener 6 is extracted, elastic link 4 on the theft-prevention clamp 3 is clamped cable a under the effect of elastic reset power, this product is advanced among the cable protecting pipe b again, when the lawless person with cable a when the c direction is firmly pullled cable a, cable a to locking member 5 bottoms oblique sting applying frictional force and drive elastic link 4 and moving downward of tooth, to go up when making locking member 5 extruded cable line a,

lower house

1,2 back down, because it is last, lower house 1, the 2nd, be sleeved in the protecting pipe b, and and the gap between the protecting pipe b is limited, when last, after lower house withstands protecting pipe b, pull at cable a more, stinging tooth and cable a will be held tighter under the locking member 5, go up simultaneously,

lower house

1,2 also can with protecting pipe b inwall extruding more tightly, make cable a not stolen by the lawless person, played good antitheft effect, if with two these products by in it oblique sting tooth and put in the cable protecting pipe in the opposite direction after, no matter then whichaway draws cable a all can not pull it.

The utility model structure is ingenious, reasonable and easy to use, is a kind of cable alarm that plays antitheft effect in the cable protecting pipe that extensively is installed in.

Claims

1. cable theft-prevention device, it is characterized in that: comprise upper shell (1) and the lower house (2) that is connected with upper shell (1) hinge, when this upper shell (1) and lower house (2) are closed in a tubular form, be provided with theft-prevention clamp (3) at upper shell (1) inwall, described theft-prevention clamp (3) comprises elastic link (4) and is arranged on the locking member (5) of elastic link (4) end that described locking member (5) bottom is provided with the oblique tooth of stinging.

2. a kind of cable theft-prevention device according to claim 1 is characterized in that described elastic link (4) is by torsionspring (41) with regulate connecting rod (42) and form.

3. a kind of cable theft-prevention device according to claim 1 is characterized in that described locking member (5) and elastic link (4) flexibly connect by connecting axle, has fastener (6) to be inlaid in the link axle and with upper shell (2) outer wall locking member (5) is located.