CN2202839Y

CN2202839Y - Theft-proof hoop

Info

Publication number: CN2202839Y
Application number: CN 94242792
Authority: CN
Inventors: 张必龙
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-11-02
Filing date: 1994-11-02
Publication date: 1995-07-05
Anticipated expiration: 2004-11-02

Abstract

The utility model relates to a hoop for connecting a valve and a pipeline. At present, due to the fact that the hoop used in the oilfield field, the chemical industry field, etc. is easy to dismantle, the stolen phenomenon frequently occur. The utility model effectively solves the problem. The utility model comprises a hoop body composed of a bolt, a nut, an upper slip and a lower slip and a theft protection card which is connected with the upper slip and the lower slip through a pressing spring and a locking pin. Thus, the nut is exactly sealed by the theft protection card to realize the theft protection purpose for the hoop. The utility model has the advantages of simple structure, high safety, convenient installation, etc.

Description

Theft-proof hoop

The utility model relates to a kind of clip that connects valve and pipeline.

At present, in the field such as oil, chemical industry, be used to connect the clip of valve and pipeline, be the clip head (flange edge) of valve and pipeline to be tied tight with double-screw bolt, nut by a pair of slips to be in the same place, formation is tightly connected, because this clip connected is not only simple and convenient but also solid and reliable, thus valve be used widely during pipeline is connected, particularly all the more so in the oil well mouth.But, owing to tying tight with bolt, nut at the clip two ends, so be easy to be removed, so it is very difficult that the clip of this structure with in the open air the time, is managed, often clip takes place, valve is stolen, cause crude oil, natural gas or industrial chemicals to leak, also can cause blowout, fire when serious.Cause heavy losses to country, the while is befouling environment also.Therefore, people are badly in need of a kind of simple and practical clip with antitheft effect.

The purpose of this utility model is to provide a kind of anti-theft clip, and it can solve present clip effectively and easily be removed and stolen deficiency, thereby guarantees the safety of field pipeline and valve.

For achieving the above object, technical solution of the present utility model is: set up a pair of antitheft card on original clip (clip main body), the nut seal that will expose, thereby reach antitheft purpose, for realizing such scheme, formation of the present utility model is: it comprises by bolt, nut, the clip main body that upper slips and lower slips are formed, and upper and lower slips links together by bolt, nut; It also comprises a pair of antitheft card, sets up one group of antitheft setting up the stage on the upper and lower slips, in the spring eye in antitheft the setting up the stage stage clip is housed, stage clip is strutting lock pin, lock pin is between spring eye and lockpin hole, and on upper and lower slips, antitheft like this card is just in time with nut seal with antitheft kayser.

The outside of the lockpin hole on the antitheft card of the present utility model also is provided with a coaxial aperture, and this hole diameter is more much smaller than lockpin hole diameter.

This shows that in a single day antitheft card is loaded onto, remove special-purpose mounting or dismounting tools and from aperture, compress a pair of lock pin simultaneously, otherwise be difficult to remove antitheft card that therefore, above-mentioned Theft-proof collar clamp has anti-theft feature.

Below in conjunction with drawings and Examples structure of the present utility model is done detailed explanation.

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

Fig. 2 is an A-A sectional view of the present utility model;

Fig. 3 is the plan view of upper slips;

Fig. 4 is the plan view of upper slips;

Fig. 5 is the left side of the upper slips figure that bows;

Fig. 6 is the plan view of antitheft card;

Fig. 7 is the plan view of antitheft card;

Fig. 8 is the left view of antitheft card;

Fig. 1 is an embodiment of the present utility model, as shown in Figure 1, it comprises the clip main body of being made up of pair of bolts ［ 1 ］, nut ［ 2 ］, upper slips ［ 4 ］ and lower slips ［ 3 ］, also comprise two pairs of antitheft cards ［ 5 ］, upper slips ［ 4 ］ and lower slips ［ 3 ］ are provided with one group of antitheft control tower ［ 10 ］, stage clip ［ 7 ］ is housed in the spring eye in the antitheft control tower ［ 8 ］, stage clip is strutting lock pin ［ 6 ］, lock pin is positioned between spring eye and the lockpin hole ［ 11 ］, and antitheft card ［ 5 ］ is locked on upper slips ［ 4 ］ and the lower slips ［ 3 ］.During assembling, earlier the clip main body is contained on the valve and pipeline clip head that needs to connect, fastening nut ［ 2 ］, upper and lower clip is drawn close, the valve and the pipeline clip head that are clipped between upper and lower slips are tightly pressed together by the circular arc anchor ring ［ 9 ］ of slips, thereby realize being tightly connected of valve and pipeline; The clip main body refills compression spring, lock pin and antitheft card after installing, and the hexagon head of nuts and bolt is just in time sealed by antitheft card like this, thereby reaches the antitheft purpose of whole clip.

The utlity model has the advantages such as simple in structure, easy for installation, good anti-theft effect.

Claims

1, a kind of Theft-proof collar clamp, it comprises the clip main body of being made up of bolt [1], nut [2], lower slips [3] and upper slips [4], upper and lower slips links together by bolt, nut, it is characterized in that the utility model also comprises two pairs of antitheft cards [5], set up one group of antitheft setting up the stage [10] on lower slips [3], the upper slips [4], stage clip [7] is housed in the spring eye in antitheft the setting up the stage [8], stage clip is strutting lock pin [6], lock pin is positioned between spring eye and the lockpin hole [11], and antitheft card [5] is locked on the upper and lower slips.

2, clip according to claim 1 is characterized in that the outside of lockpin hole ［ 11 ］ also is provided with a coaxial aperture ［ 12 ］, and the diameter of this aperture is more much smaller than lockpin hole diameter.