CN2601338Y

CN2601338Y - Antitheft device of valve

Info

Publication number: CN2601338Y
Application number: CN 03236759
Authority: CN
Inventors: 张良亭; 杨云峰; 徐殿波; 朱步新
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-01-24
Filing date: 2003-01-24
Publication date: 2004-01-28
Anticipated expiration: 2013-01-24

Abstract

The utility model discloses an anti-theft device of the valve, which is arranged on the valve, a sleeve is coated on the plugging gland of the valve body, a nut is screwed on the protruded end of a threaded spindle in the inner bore of the sleeve, a regulating sleeve is fixed on the excircle of the nut by a key, the regulating sleeve has a plurality of lateral bolt holes, an anti-theft nut is arranged on the upper part of the regulating sleeve, the anti-theft nut is screwed with the nut by internal thread, and takes the shape of upper round and lower hexagonal, the upper part of the internal thread hole is round, the round hole has a ring groove, a shield seat is arranged on the upper part of the anti-theft nut, the shield seat is screw-connected with the sleeve, a lock core unlocked by a key is arranged in the inner bore of the shield seat, with the locking condition, the dead bolt of the lock core goes through the edge gap of the lock shell and is extended into the ring groove in the inner bore of the anti-theft nut, the lock shell tighten the lock core from the lower part and a pentangular bolt is arranged in the bolt hole of the shield seat on the upper part of the lock core. With the advantages of simple structure, durability, anti-drilling, anti-sawing and anti-prying, the utility model can be only opened and closed by the special tool and lockset with strong anti-theft performance and convenient opening and laborsaving.

Description

The valve anti-theft device

Technical field

The utility model relates to antitheft equipment class field, particularly is applied to the valve anti-theft device on oil field production tree, oil transportation, the gas transmission line.

Background technique

The oil recovery well in oil field is distributed on the wide open country more, wide, the people is rare, be difficult for nurse, for a long time, production tree is regarded as money tree by the lawless person in some societies, wanton destruction, and it is stolen for preventing production tree to steal crude oil, be badly in need of a kind of anti-theft feature valve anti-theft devices such as anti-drilling, anti-saw, pick-proof that have, the anti-theft capability that existing valve for guarding against theft device has is poor, and the use inconvenience that has has and improves perfect necessity.

Summary of the invention

The purpose of this utility model provides the valve anti-theft device of a kind of certificate simple in structure, firm, anti-drilling, anti-, pick-proof, and its relies on special spanner and lockset to combine the opening and closing of control valve, and theftproof performance is strong, and it is convenient, laborsaving to open.

The purpose of this utility model is achieved in that a kind of valve anti-theft device, be installed on the valve, the rotational lead screw of opening/shutting valve stretches out from valve body top, it is characterized in that: outside the putty gland of valve body, be set with sheath, in the endoporus of this sheath, on the external part of leading screw, be bolted with nut, this nut cylindrical is fixed with adjustment sleeve with key, this adjusting is with some horizontal screws, anti-theft nut is equipped with on top at this adjustment sleeve, this anti-theft nut is with the internal thread nut that is spirally connected, and this anti-theft nut gabarit is presented circle six sides' shape down, and the top of its interior threaded hole is circular hole, have annular groove on this circular hole, guard housing is equipped with on top at this anti-theft nut, and this guard housing is bolted in sheath, is equipped with in the endoporus of this guard housing with key operated lock core; At locking states, the edge breach that the dead bolt of this lock core passes lock housing enters the annular groove of anti-theft nut, and this lock housing is surrounded lock core from the bottom, and this lock housing is fixed in guard housing with screw and lock core is fixed, and in the screw of the guard housing on this lock core top five corner bolts is housed.

Described five corner bolts and adjustment sleeve dispose special spanner, and an end of this special spanner has interior five jiaos of holes corresponding with five corner bolts, and end has the horizontal screw of screw rod and adjustment sleeve corresponding in addition.

The material of described sheath and guard housing is high strength, high hardness steel.

The utility model has following actively useful effect:

1. the locking-valve one is firm solid, hard, the high-strength material of sheath and guard housing material selection height, and its hardness can not be destroyed by sharp device such as hacksaw, file, anti-ly pounds, shock resistance, and anti-malicious sabotage performance is strong.

2. do not have special spanner and key, valve can't opening and closing, have very strong theftproof performance.

3. valve opening is convenient and strength-saving, and switch all can to any position.

Description of drawings

Fig. 1 is the utility model one embodiment's a structural representation;

Fig. 2 is the structural representation of adjustment sleeve among Fig. 1;

Fig. 3 is the plan view of Fig. 2;

Fig. 4 is the structural representation of five corner bolts among Fig. 1;

Fig. 5 is the plan view of Fig. 4;

Fig. 6 is the structural representation of lock housing among Fig. 1;

Fig. 7 is the worm's eye view of Fig. 6;

Fig. 8 is the structural representation of anti-theft nut among Fig. 1;

Fig. 9 is the worm's eye view of Fig. 8;

Figure 10 is the structural representation of guard housing among Fig. 1;

Figure 11 is the plan view of Figure 10;

Figure 12 is the structural representation of the utility model special spanner;

Figure 13 is that the A of Figure 12 is to partial sectional view.

Embodiment

Please refer to Fig. 1, valve anti-theft device of the present utility model comprises valve body 1, sheath 2, guard housing 3, five corner bolts 4, lock core 5, lock housing 6, anti-theft nut 7, leading screw 8, transmission nut 9, adjustment sleeve 10, the structure of adjustment sleeve 10 such as Fig. 2, shown in Figure 3, the structure of five corner bolts 4 such as Fig. 4, shown in Figure 5, the structure of lock housing 6 such as Fig. 6, shown in Figure 7, the structure of anti-theft nut 7 such as Fig. 8, shown in Figure 9, the structure of guard housing 3 such as Figure 10, shown in Figure 11.

This valve anti-theft device does not change the main structure of General valve, as Fig. 1, valve handle is removed from transmission nut 9, load onto adjustment sleeve 10 and anti-theft nut 7, lock core 5 is installed on the guard housing 3 with lock housing 6, guard housing 3 is threaded with sheath 2, and five special corner bolts 4 are twisted the lockhole position in guard housing 3.Like this, valve is just locked, and has realized the anti-theft feature of valve.The high material of material selection intensity, hardness of sheath 2 and guard housing 3 can not be destroyed its hardness by sharp device such as hacksaw, file, and anti-ly pound, shock resistance.

Please refer to Fig. 1, outside the putty gland 11 of valve body 1, be set with sheath 2, in the endoporus of this sheath 2, on the external part of leading screw 8, be bolted with nut 9, these nut 9 cylindricals are fixed with adjustment sleeve 10 with key, this adjustment sleeve 10 has some horizontal screw 101 as Fig. 2, shown in Figure 3, having keyway 102 on this adjustment sleeve 10 is used for being connected with nut 9 keys, on the top of this adjustment sleeve 10 anti-theft nut 7 is housed, this anti-theft nut 7 is with the internal thread nut 9 that is spirally connected, these anti-theft nut 7 gabarits are presented circle shape such as Fig. 8 of six sides down, shown in Figure 9, the top of its interior threaded hole is circular hole, has annular groove 701 on this circular hole, on the top of this anti-theft nut 7 guard housing 3 is housed, this guard housing 3 is bolted in sheath 2, is equipped with in the endoporus of this guard housing 3 with key operated lock core 5; At locking states, the edge breach 601 that the dead bolt of this lock core 5 passes lock housing 6 enters the annular groove 701 of anti-theft nut 7, this lock housing 6 is surrounded from the bottom with lock core 5, have screw hole 602 on the lock housing 6 as shown in Figure 7, this lock housing 6 is fixed in guard housing 3 with screw and lock core 5 is fixing, in the screw of the guard housing 3 on these lock core 5 tops five corner bolts 4 is housed.

Please refer to Figure 12, Figure 13, described five corner bolts 4 and adjustment sleeve 10 dispose special spanner 12, and an end of this special spanner 12 has interior five jiaos of holes 13 corresponding with five corner bolts 4, and the end in addition of this special spanner 12 has screw rod 14 corresponding with the horizontal screw 101 of adjustment sleeve 10.

During Open valve, back out five corner bolts 4 with the interior five jiaos of holes 13 on the special spanner 12 earlier, take off sheath 2, rotate adjustment sleeve 10 with the screw rod on the special spanner 12 14 again, drive transmission nut 9 by key, transmission nut 9 rises leading screw 8 or descends the function that reaches valve opening or close.When valve closing fashionable dress upper jacket 2, lock core 5 is locked, lock core 5 is connected with anti-theft nut 7, anti-theft device and valve are fused, with five corner bolts 4 of screwing on of the interior five jiaos of holes 13 on the special spanner 12, finish the antitheft work of valve this moment.During Open valve, earlier with the interior five jiaos of holes 13 on the special spanner 12 open five corner bolts 4, key is opened lock 5, is taken off sheath 2, rotates adjustment sleeves 10, valve opening with the screw rod on the special spanner 12 14 again.

Claims

1. valve anti-theft device, be installed on the valve, the rotational lead screw of opening/shutting valve (8) stretches out from valve body (1) top, it is characterized in that: outside the putty gland (11) of valve body (1), be set with sheath (2), in the endoporus of this sheath (2), on the external part of leading screw (8), be bolted with nut (9), this nut (9) cylindrical is fixed with adjustment sleeve (10) with key, this adjustment sleeve (10) has some horizontal screws (101), on the top of this adjustment sleeve (10) anti-theft nut (7) is housed, this anti-theft nut (7) is with the internal thread nut (9) that is spirally connected, this anti-theft nut (7) gabarit is presented circle six sides' shape down, the top of its interior threaded hole is circular hole, have annular groove (701) on this circular hole, on the top of this anti-theft nut (7) guard housing (3) is housed, this guard housing (3) is bolted in sheath (2), is equipped with in the endoporus of this guard housing (3) with key operated lock core (5); At locking states, the edge breach (601) that the dead bolt of this lock core (5) passes lock housing (6) enters the annular groove (701) of anti-theft nut (7), this lock housing (6) is surrounded from the bottom with lock core (5), this lock housing (6) is fixed in guard housing (3) with screw and lock core (5) is fixing, in the screw of the guard housing (3) on this lock core (5) top five corner bolts (4) is housed.

2. valve anti-theft device as claimed in claim 1, it is characterized in that: described five corner bolts (4) and adjustment sleeve (10) dispose special spanner (12), one end of this special spanner (12) has interior five jiaos of holes (13) corresponding with five corner bolts (4), and the end in addition of this special spanner (12) has screw rod (14) corresponding with the horizontal screw (101) of adjustment sleeve (10).

3. valve anti-theft device as claimed in claim 1 is characterized in that: the material of described sheath (2) and guard housing (3) is high strength, high hardness steel.