CN2436748Y - Lock and open device for theft-proof valve - Google Patents

Abstract

The utility model relates to a locking and opening device for a theft-proof valve, which belongs to the technical field of a valve and a special lock. A locking device is mainly composed of a lock shell, a lock core, slide pins, locking pins, a spring, a screw nut, a screw rod, etc. The lock core in a circular pipe shape is arranged in an inner cavity of the lock shell. The slide pins and the locking pins are arranged in eight axial holes. The screw nut is arranged in the inner cavity of the lock core, and is arranged on the screw rod. An opening device is mainly composed of a handle, a handle seat, a spanner body, a positioning sleeve, plugs, positioning pins, etc. The eight plugs are arranged on the front end of a tube-shaped spanner. The positioning sleeve is arranged at the outside of the spanner. The locking and opening device for a theft-proof valve is hard to simulate, and is matched to specially use. The utility model has the advantages of reliable theft-proof performance and convenient operation, and is especially suitable for field occasions, such as oil wells, etc.

Description

Valve for guarding against theft locking and breakdown device

The utility model relates to valve, relates to also that valve is antitheft to unload special-purpose special lock, particularly is a kind of valve for guarding against theft locking and breakdown device.

All kinds of valves are in oil field shaft mouth, oil tank, gathering station, oil and gas pipes system and petroleum chemical industry extensive use.Especially in unattended occasion, in order to prevent lawless person's breakdown valve robber draining gas without authorization, the antitheft lockset that unloads special-purpose on some valve for guarding against theft and the valve arises at the historic moment.By retrieval, existing tens pieces of this type of patent documentation can be divided three classes by the breakdown mode, wherein adopt special tool (or special-purpose wrench) breakdown mode at most, special spanner and key and usefulness, small part employing cipher lock mode of structure are also arranged.Because special tool or special-purpose wrench structure shape are all simpler, and each valve is general, in case copied or steal a cover special tool or a wrench by the lawless person, large quantities of similar valves will lose antitheft use.Adopt the cipher lock mode of structure, each uses unique password each valve, though can overcome above-mentioned shortcoming, this cipher anti theft valve of oil field shaft mouth high volume applications, the relevant personnel will remember the password of each valve of Yi, and are convenient inadequately.

Above-mentioned shortcoming and defect part in view of prior art, the purpose of this utility model just is to provide distinguished valve for guarding against theft locking of a kind of structural type and breakdown device, the anti-theft feature that not only has existing valve for guarding against theft, and be difficult for being copied, in case stolen by the lawless person, can not be used for which valve, application person can avoid remembering the trouble of Yi password, easy to use and management.

Above-mentioned purpose is realized by following technical proposals:

Valve for guarding against theft locking and breakdown device are to remove handle or handwheel on the basis of original valve, increase locking device, special-purpose breakdown device in the outfit.It is characterized in that locking device is stifled by lock housing, lock core, sliding pin, locking lock, locking spring, spring, bearing, screw, screw mandrel and sealing is stifled forms.There is the installation that matches of outside thread and valve pressure cap upper end internal thread the lock housing lower end.Lock housing top inner chamber is equipped with lock core, and 8 axial bores are arranged on the lock core, and sliding pin and stop pin are housed in each hole.The lock housing bottom have 8 with the isometrical concentric axial bore of lock core axial bore, it is stifled that locking spring and spring are housed in each hole.The lock core internal diameter is identical with lock housing bottom internal diameter, and interior dress screw is fixedly become one by fixing jackscrew between screw top and the lock core, between screw bottom cylindrical and the valve pressure cap inwall bearing is housed, and the installation that matches of internal thread and screw mandrel is arranged at screw top.The stifled lock housing upper end-hole that is installed in of sealing.The breakdown device is because handle, handle set, wrench body, wrench setting sleeve, spring, steel ball, fixing pin and latch composition.Handle is welded on the handle set cylindrical.Handle set is contained in the external round top of wrench, and the two fixedly becomes one with fixing pin.The wrench setting sleeve is contained in the external round middle and lower part of wrench, in 4 axial blind holes in its underpart spring and steel ball is housed respectively.Insert in 8 axial bores in wrench body lower end surface on 8 latch tops, and fixedly become one with fixing pin.

Lock housing in above-mentioned valve for guarding against theft locking and the breakdown device is the ladder round tube shape, and is upper coarse and lower fine.Uniform 8 axial bores in its underpart, uniform 4 radial direction top thread holes, outside thread place.There is end face mouth groove on top on it.

Lock core in above-mentioned valve for guarding against theft locking and the breakdown device is a round tube shape, uniform 8 axial step through holes, and the Lower Half in hole and upper top aperture are greater than the first half, and wherein 1 axial bore upper top has end face groove.4 radial direction top thread holes are arranged at lock core top.

Screw in above-mentioned valve for guarding against theft locking and the breakdown device is a round tube shape, and internal thread is arranged at its top, and bearings mounted outer lug boss is arranged at the bottom.

Stop pin in the device of above-mentioned valve for guarding against theft locking and breakdown is a cylindrical shape, and it has 8, equal in length.Its Lower Half has the blind hole that the locking spring is installed.

Sliding pin in above-mentioned valve for guarding against theft locking and the breakdown device is a cylindrical shape, has 8, and each is unequal for length.

Wrench setting sleeve in locking of above-mentioned valve for guarding against theft and the breakdown device is a round tube shape, and there is the end face outer lug boss its underpart, matches uniform 4 the spring-loaded axial blind holes of Lower Half with the end face mouth groove of lock housing upper top.

Wrench body in above-mentioned valve for guarding against theft locking and the breakdown device is a round tube shape, and there is the annular outer platform its underpart, uniform 8 axial bores on the outer lug boss, and respectively there is a radially fixed pin holes at the axial bore place.4 radially fixed pin holes are arranged at its top.

Latch in above-mentioned valve for guarding against theft locking and the breakdown device is the ladder cylindrical shape, and is upper coarse and lower fine, has 8, and each is unequal for its length.Wherein have 1 to be the locating basis latch, individual end face pin boss is arranged at its top.

The valve for guarding against theft of making according to technique scheme locks and the breakdown device, owing to adopted the lock of special construction dexterously, and the breakdown device has adopted the special-purpose wrench of special construction dexterously, characteristics with permutation lock, wrench can only a valve of breakdown locking device, also because the breakdown device is difficult to copy, even copy, do not know with the locking device of which valve yet just in time supporting, so the lawless person without authorization the breakdown valve steal draining gas.Also because fixedly jackscrew mounting type has all been adopted in valve pressure cap and lock housing scyewed joint place, lock housing and lock core cooperation place, and its plug is not quick detachable, this valve oneself can prevent that also the lawless person from dismantling destruction.Can remember that for the user check mark of Yi valve arranges, it is very convenient that the user feels.

Accompanying drawing 1 is the vertical complete section plan view of the overall structure of the utility model valve for guarding against theft locking device.

Accompanying drawing 2 is that Fig. 1 is unkitted the A of sealing stifled 1 to view.

Accompanying drawing 3 is B-B sectional views of Fig. 1.

Accompanying drawing 4 is C-C sectional views of Fig. 1.

Accompanying drawing 5 is vertical complete section plan views of overall structure of the utility model valve for guarding against theft breakdown device.

Accompanying drawing 6 is that the D of Fig. 5 is to view.

Accompanying drawing 7 is E-E sectional views of Fig. 5.

Accompanying drawing 8 is F-F sectional views of Fig. 5.

Accompanying drawing 9 is latch 24,25 and sliding pin 5 check mark arrangement embodiment unfolded drawings among Fig. 5.

In conjunction with the accompanying drawings embodiment of the present utility model is described below:

Among the accompanying drawing 1-4, the 1st, sealing is stifled, and the 2nd, lock housing, the 3rd, screw, the 4th, lock core, the 5th, sliding pin, the 6th, the locking lock, the 7th, screw mandrel, the 8th, the locking spring, the 9th, the valve pressure cap, the 10th, spring is stifled, and the 11st, bearing, the 12nd, seal ring, the 13, the 15th, plug, the 14, the 16th, fixing jackscrew.G is a breakdown latch jack, and H is an end face mouth groove, and I is an end face groove.

Among the accompanying drawing 5-9, the 17th, handle, the 18th, handle set, the 19th, wrench setting sleeve, the 20th, wrench body, the 21st, spring, the 22nd, steel ball, the 23rd, fixing pin, the 24th, locating basis latch, the 25th, latch, the 26th, fixing pin.J is the end face outer lug boss of wrench setting sleeve 19 bottoms, matches with the end face mouth groove H of lock housing 2 upper tops.

Accompanying drawing 1-4 is the valve for guarding against theft locking device., bearing 11 stifled 10 by lock housing 2, lock core 4, sliding pin 5, stop pin 6, locking spring 8, spring, screw 3, screw mandrel 7 and sealing stifled 1 are formed.There is the installation that matches of the internal thread of outside thread and valve pressure cap 9 upper ends the lower end of lock housing 2, and is fixedly become one by 4 fixterm silks 16 among Fig. 4.Lock housing 2 top inner chambers are equipped with lock core 4, and 8 axial bore G are arranged on the lock core, and sliding pin 5 and locking lock 6 are housed in each hole.Locking spring 8 and spring stifled 10 is housed in 8 axial bores in lock housing 2 bottoms.Lock core 4 internal diameters are identical with lock housing 2 bottom internal diameters, interior dress screw 3.Fixedly become one by fixing jackscrew 14 between screw 3 tops and the lock core 4.Between screw 3 bottom cylindricals and valve pressure cap 9 inwalls, bearing 11 is housed.The installation that matches of internal thread and screw mandrel 7 is arranged at screw 3 tops.Sealing stifled 1 is installed in lock housing 2 upper end-hole.

Accompanying drawing 5-9 is a valve for guarding against theft breakdown device.Form by handle 17, handle set 18, wrench body 20, wrench setting sleeve 19, spring 21, steel ball 22,23,1 locating basis latch 24 of fixing pin and 7 latches 25.Handle 17 is welded on handle set 18 cylindricals.Handle set 18 is installed in wrench body 20 cylindrical tops, and the two fixedly becomes one with the fixing pin among Fig. 7 26.Wrench setting sleeve 19 is contained in wrench body 20 cylindrical middle and lower parts, in 4 axial blind holes in its underpart spring 21 and steel ball 22 is housed respectively.8 latch 24,25 top major diameters are partly inserted in 8 axial bores in wrench body 20 lower end surfaces, and fixedly become one with fixing pin 23.17,18,20,23,24,25 all fixedly become one, and have only wrench setting sleeve 19 to rotate on wrench body 20 cylindricals, and axially fine motion, regulate and eliminate axial clearance.

Accompanying drawing 1 is the screw mandrel 7 locked states of valve for guarding against theft.Because screw 3 is fixedly become one by the fixedly jackscrew 14 among Fig. 3 with lock core 4, lock core 4 is by 6 lockings of the stop pin among Fig. 1, can not rotate, so screw 3 also just can not rotate, screw 3 can not rotate, screw mandrel 7 just can not move up and down, and valve just can't breakdown, thereby prevents that the lawless person from opening valve robber draining gas without authorization.

8 stop pin 6 equal in length in the accompanying drawing 1, the length of present embodiment is 30 millimeters.Each is unequal for the length of 8 sliding pins 5, see shown in Figure 9,10 millimeters of the shortest persons, 24 millimeters of elders differ 2 millimeters successively.The thin diameter section of 8 latches is an insertion depth, and also each is unequal, 40 millimeters of elders, and 26 millimeters of the shortest persons differ 2 millimeters successively.Each sliding pin 5 corresponding 1 latch, the two length sum all is 50 millimeters.The longest 40 millimeters the latch of length is as locating basis latch 24, and corresponding with it is 10 millimeters the shortest sliding pin 5 of length.The shortest 26 millimeters latch 25, corresponding with the longest 24 millimeters sliding pin 5.By that analogy, have 8 pairs.Each is to along any permutation and combination of circumference, and the corresponding relation that certain pin is decided device and certain breakdown device is unique, non-interchangeability.

When this valve for guarding against theft of needs breakdown, it is stifled 1 at first to lay down sealing among Fig. 1, the end face groove I that aims among Fig. 2 of the locating basis latch 24 of this breakdown device shown in Figure 5 that will be corresponding again with it, and other 7 latches 25 are aimed at separately jack G respectively.Push ahead the wrench setting sleeve 19 among the promptly rotatable Fig. 5 of certain depth, make the end face outer lug boss J of its underpart enter the end face mouth groove H of lock housing 2 upper tops among Fig. 2, and clockwise or inhour rotate wrench setting sleeve 19, it is stuck prevents to return.In the case, as shown in Figure 1, sliding pin 5 and stop pin 6 pressure that overcomes spring 8 that 8 latches 24 and 25 promote separately simultaneously move down, and it is concordant to make that the lower end surface of 8 sliding pins 5 arrives the lower end surface of lock core 4 simultaneously, and stop pin 6 has just lost the lock function to lock core 4.Clockwise rotate 17,8 latches of handle 24,25 among Fig. 5 again and can drive lock core 4 and clockwise rotate, lock core 4 drives screw 3 again and clockwise rotates, and makes screw mandrel 7 move up, and valve for guarding against theft is promptly by breakdown.It is many more to rotate the number of turns, and the breakdown degree is big more.

Claims (9)

1. a valve for guarding against theft locks and the breakdown device, comprise locking device and breakdown device, it is characterized in that locking device is by lock housing, lock core, sliding pin, stop pin, the locking spring, spring is stifled, bearing, screw, screw mandrel and sealing are stifled to be formed, there is the installation that matches of the internal thread of outside thread and valve pressure cap upper end the lock housing lower end, lock housing top inner chamber is equipped with lock core, 8 axial bores are arranged on the lock core, sliding pin and stop pin are housed in each hole, the lock housing bottom have 8 with the isometrical concentric axial bore of lock core axial bore, it is stifled that locking spring and spring are housed in each hole, the lock core internal diameter is identical with lock housing bottom internal diameter, interior dress screw, fixedly become one by fixing jackscrew between screw top and the lock core, between screw bottom cylindrical and the valve pressure cap inwall bearing is housed, the installation that matches of internal thread and screw mandrel is arranged at screw top, the stifled lock housing upper end-hole that is installed in of sealing; The breakdown device is made up of handle, handle set, wrench body, wrench setting sleeve, spring, steel ball, fixing pin and latch, handle is welded on the handle set cylindrical, handle set is contained in wrench cylindrical top, the two fixedly becomes one with fixing pin, the wrench setting sleeve is contained in middle and lower part, the external garden of wrench, in 4 axial blind holes in its underpart spring and steel ball are housed respectively, insert in 8 axial bores in wrench body lower end surface on 8 latch tops, and fixedly become one with fixing pin.

2. valve for guarding against theft locking as claimed in claim 1 and breakdown device is characterized in that lock housing is the ladder round tube shape, and be upper coarse and lower fine, uniform 8 axial bores in its underpart, and uniform 4 the radial direction top thread blind holes in outside thread place, its upper top has end face mouth groove.

3. valve for guarding against theft locking as claimed in claim 1 and breakdown device, it is characterized in that lock core is a round tube shape, uniform 8 axial step through holes, the Lower Half in hole and upper top aperture are greater than the first half, wherein 1 axial bore upper top has end face groove, and 4 radial direction top thread holes are arranged at lock core top.

4. valve for guarding against theft locking as claimed in claim 1 and breakdown device is characterized in that screw is a round tube shape, and internal thread is arranged at its top, and bearings mounted outer lug boss is arranged at the bottom.

5. valve for guarding against theft locking as claimed in claim 1 and breakdown device is characterized in that stop pin is a cylindrical shape, have 8, and equal in length, its Lower Half have the blind hole that the locking spring is installed.

6. valve for guarding against theft locking as claimed in claim 1 and breakdown device is characterized in that sliding pin is a cylindrical shape, and each is unequal to have 8 length.

7. valve for guarding against theft locking as claimed in claim 1 and breakdown device is characterized in that the wrench setting sleeve is a round tube shape, and there is the end face outer lug boss its underpart, uniform 4 axial blind holes of Lower Half.

8. valve for guarding against theft locking as claimed in claim 1 and breakdown device, it is characterized in that the wrench body is a round tube shape, there is the annular outer platform its underpart, uniform 8 axial bores on the outer lug boss, respectively there is 1 radially fixed pin holes at the axial bore place, and 4 radially fixed pin holes are arranged at its top.

9. valve for guarding against theft locking as claimed in claim 1 and breakdown device is characterized in that latch is the ladder cylindrical shape, and be upper coarse and lower fine, has 8, and each is unequal for length, wherein has 1 to be the locating basis latch, and individual end face pin boss is arranged at its top.

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