CN2665350Y - Well head anti-theft case - Google Patents

Abstract

The utility model discloses a wellhead anti-theft box device, which comprises a box body device, a lock device, a power control device and an auxiliary device. The box body device comprises four small box bodies composed of a front left box body, a back left box body, a back right box body and a front right box body, and a big box body composed under the connection of a main pin shaft and an auxiliary pin shaft; the box bottom is made separately; the main pin shafts of the box bottom and the box body are movably connected with the wellhead; the lock device is arranged in the interlayer of the front box bodies, which is divided into a password lock, a remote reset lock, a mechanical lock and an emergency light lock. The power control device is divided into two parts, wherein, one part which is composed of a battery, a remote receiver, a remote lock, an explosion-proof emergency light, an explosion-proof emergency light switch and wires is arranged in the interlayer inside the front box bodies; the other part is a transformer arranged in the control box of the oil pumping machine, which transmits the transformed voltage to the electrical equipment inside the front box bodies through wires. The auxiliary device provides anti-theft measures on a packing set press cap which is the only exposed part on the wellhead, by adding a packing set anti-loosening device to prevent loosening the packing set press cap and stealing oil.

Description

The well head theft-proof box

One, technical field

The utility model is that a kind of well head theft-proof box that utilizes carries out antitheft device to wellhead equipment, is specially adapted to the antitheft of the wellhead equipment of all kinds of oil, gas, well and crude oil.

Two, background technology

Chinese patent 01243816,2 discloses a kind of well head theft-proof box, and casing and lockset before and after it comprises in whole well head bag and case, thereby play antitheft effect.Shortcomings such as though yet this theft-proof box has the stolen and certain guard against theft oil function of the equipment of preventing, it has, and volume is big, cost is high, dismounting is loaded down with trivial details, the narrow and small difficulty of construction in inner space is big, and dangerous situation occurring can't succour, and potential safety hazard is many are so result of use is undesirable.

Three, summary of the invention

Problem to be solved in the utility model is to improve the shortcoming and defect of prior art, provide a kind of can be antitheft and be convenient to the well head theft-proof box device of dismounting and construction operation.

The technical scheme that the utility model is dealt with problems is a kind of well head theft-proof box device, and it comprises box body device, lock device, power control and servicing unit.Box body device comprises four respectively by the big preceding left box body of FCL body 1/4, back left box body, back right case and preceding right case and about at the bottom of two casees and the master, secondary bearing pin is formed, box body wall top is drilled with aperture, the flammable explosive gas of box house is overflowed, and be welded with fire-fighting joint (figure is preceding left tank wall) at any side box wall middle part, breaking out of fire prevents just in case can be puted out a fire to save life and property, preceding left box body is connected by secondary bearing pin with the back left box body, back left box body is connected by the stub axle with the back right case, back right case is connected by secondary bearing pin with preceding right case, their each casings all can be around main, secondary mutual switch of bearing pin and rotation, in the preceding right case (or preceding left box body) lock device and power control are installed, lock mutually with preceding left box body by the stop pin on the preceding right case, make them become as a whole; Make separately according to the casing size at the bottom of the case, be installed in branch left and right sides two parts in the casing, so that installation and removal, end at the bottom of the case connects in the stub axle, and the middle part fixes with production tree at the bottom of the case, and respectively there are four feets the case bottom, support four limits at the bottom of the case respectively, and contact with ground.Bearing pin divides stub axle and secondary bearing pin, stub axle bottom is " it " font structure with two 90 ° of elbows, the prefabricated stub axle fixture in it and ground (will be embedded in underground certain depth with the flange of straight tube, and use cemented) fix by screw, the stub axle connects respectively at the bottom of back left box body, back right case and the case, before secondary bearing pin makes respectively left box body link to each other with the back left box body, preceding right case with after right case link to each other.

Lock device comprises coded lock, remote control reset lock, mechanical lock and emergency light lock, they are installed in respectively in preceding right case (or the preceding left box body) Sealed sandwich, finish the flexible of stop pin by the connecting rod in the interlayer, spring and lockset interaction, wherein the reset lock body and the lock core of lock, mechanical lock of coded lock, remote control is basic identical, adopt the special spanner corresponding with it to carry out switch, the lock core of emergency light lock is that " one " font is by the special spanner switch.

Power control comprises the oil pumper control cabinet, cable and be installed in before storage battery in the right case interlayer, receiver of remote-control sytem, the remote control lock, explosion-proof emergency light, explosion-proof emergency light switch be connected lead, transformer in the oil pumper control cabinet becomes the alternating current of 380V or 220V into required low-voltage DC, flow to storage battery by cable, receiver of remote-control sytem and explosion-proof emergency light switch, and by the connection of the lead in interlayer remote control lock and explosion-proof emergency light, storage battery wherein, the joint of receiver of remote-control sytem and each lead is installed in the preceding right case Sealed sandwich, can effectively stop electric fixtures sparking causing fire or explosion accident, explosion-proof emergency light is installed protected apron outward, it is connected by connecting rod with the emergency light lock, can prevent that booty from polluting lampshade.

Servicing unit is installed the packing check device to the unique exposed part packing box of whole well head pressure cap, comprise the check device main body that links to each other with the packing box pressure cap and the accessory body in the casing, it has guaranteed when not opening casing, tightly packing pressure cap and can not unload loose packing pressure cap and steal crude oil.

The utility model has the following advantages compared with prior art:

1, good anti-theft effect: whole production tree is wrapped in the casing, lockset on the cabinet door adopts advanced anti-theft measures such as mechanical cipher design, remote control design and password design, and to unique wellhead equipment packing box pressure cap employing packing box check device that exposes, prevent that effectively pine from unloading the packing box stolen, thus the decidable good anti-theft effect.

2, safety is good: casing can be opened mutually, the operating space is big, avoided the narrow and small unhandy shortcoming of casing in the past, air leakage hole and fire-fighting hole are arranged on the casing, succour in the time of can making inflammable gas overflow with breaking out of fire, power supply and remote control unit are installed in the box sealing interlayer, can stop electric fixtures sparking causing fire or explosion accident.

3, little, in light weight, the compact conformation of volume, good airproof performance: each casing posts weather strip in conjunction with tight and inside, can prevent effectively that casing from being prized and can prevent that the leakage of oil of well head from entering casing.

4, easy to operate: casing adopts bearing pin to connect, and can open mutually and be convenient to various construction operations.

5, observe conveniently: emergency light is arranged in the casing, can under the situation of not opening casing, observe the well head situation.

Four, description of drawings

Fig. 1 is the utility model well head theft-proof box Unit Installation structural representation;

Fig. 2 looks schematic diagram for the master of the utility model well head theft-proof box device;

Fig. 3 is the schematic side view of the well head theft-proof box of Fig. 2;

Fig. 4 is the schematic top plan view of the well head theft-proof box of Fig. 2;

Fig. 5 looks schematic diagram for the master of the preceding left box body of Fig. 2;

Fig. 6 is the schematic side view of Fig. 5;

Fig. 7 is the schematic top plan view of Fig. 5;

Fig. 8 looks schematic diagram for the master of the back left box body of Fig. 2;

Fig. 9 is the schematic side view of Fig. 8;

Figure 10 is the schematic top plan view of Fig. 8;

Figure 11 looks schematic diagram for the master of the back right case of Fig. 2

Figure 12 is the schematic side view of Figure 11;

Figure 13 is the schematic top plan view of Figure 11;

Figure 14 looks schematic diagram for the master of right case before Fig. 2;

Figure 15 is the schematic side view of Figure 14;

Figure 16 is the schematic top plan view of Figure 14;

Figure 17 looks schematic diagram for the master at the bottom of the right case of Fig. 1;

Figure 18 is the schematic side view of Figure 17;

Figure 19 is the schematic top plan view of Figure 17;

Figure 20 is the stub axle construction schematic diagram of Fig. 1;

Figure 21 is the schematic side view of Figure 20;

Figure 22 is the inner mounting structure schematic diagram of the preceding right case of Figure 14;

Figure 23 is the packing box check device structural representation of Fig. 1;

Figure 24 is the structural representation of Figure 23;

Figure 25 is the coded lock structural representation of Fig. 2;

Figure 26 is the schematic top plan view of Figure 25;

Figure 27 is the lock body structure schematic diagram of Figure 25;

Figure 28 is the schematic top plan view of Figure 27;

Figure 29 is the lock core structure schematic diagram of Figure 25;

Figure 30 is the schematic side view of Figure 29;

Figure 31 is the schematic top plan view of Figure 29;

Figure 32 is the jam plate structural representation of Figure 25;

Figure 33 is the schematic top plan view of Figure 32;

Figure 34 is the password board structural representation of Figure 25;

Figure 35 is the schematic top plan view of Figure 34;

Figure 36 is the emergency light lock construction schematic diagram of Fig. 2;

Figure 37 is the schematic top plan view of Figure 36;

Figure 38 is the lock body structure schematic diagram of Figure 36 emergency light lock;

Figure 39 is the schematic top plan view of Figure 38;

Figure 40 is the structural representation of the lock core of Figure 36 emergency light lock;

Figure 41 is the schematic side view of Figure 40;

Figure 42 is the schematic top plan view of Figure 40;

Five, the specific embodiment

Referring to Fig. 1 to Figure 42, a kind of well head theft-proof box device comprises box body device, lock device, power control and servicing unit.Box body device comprises at the bottom of preceding left box body 3, back left box body 5, back right case 8, preceding right case 10, the right case 12, at the bottom of the left case 13, stub axle 7 and secondary bearing pin 4,9; Lock device comprises coded lock 15, remote control reset lock 16, mechanical lock 17, emergency light lock 14; Power control comprises oil pumper control cabinet 1, cable 2 and is installed in storage battery 10-8, receiver of remote-control sytem 10-9, remote control lock 10-11, explosion-proof emergency light 10-10, the explosion-proof emergency light switch 10-14 in the preceding right case (or preceding left box body) 10 and is connected lead; Servicing unit comprises packing check device 6 and the interior ratchet 6-6 of casing that is installed on the well head packing box pressing cap.Box body device is mainly by centering on stub axle 7 and secondary bearing pin 4, the 9 preceding left box bodies 3 that rotate mutually, back left box body 5, back right case 8, before 10 4 small box of right case and two be installed at the bottom of the right case that can divide right and left in the casing 12,13 form at the bottom of the case of a left side, at preceding left box body 3, back left box body 5, pin body 3-2 is installed in the back right case 8,5-3,8-4, by pin three casings are synthesized 3/4 big integral body, in the preceding right case (or preceding left box body) 10 lockset and electric fixturess are installed, by stop pin 10-6 on the preceding right case 10 and 3 lockings of preceding left box body, at preceding left box body 3, back left box body 5, back right case 8, the tank wall top of preceding right case 10 is drilled with air leakage hole 3-1,5-2,8-2,10-7, and in the middle part of the tank wall of preceding left box body 3, be welded with fire-fighting hole 3-4; Divide at the bottom of the case at the bottom of the right case 12 and left case at the bottom of 13 two parts, two bases are identical, they are installed in the casing, the fixed head 12-2 that hangs down by case is connected with the fixed head 7-1 on the stub axle 7, bottom at the bottom of the case respectively has four feet 12-1 to contact with ground, can be according to well head flow process situation field machining at the bottom of the case; " it " font structure is formed by two 90 ° of elbows in the bottom of stub axle 7, and be hidden in the casing, stub axle 7 and back left box body 5, back right case 8 is by stub axle sleeve 5-4,8-1 is connected, make two casings around stub axle 7 left-right rotation, the fixed head 12-1 that stub axle bottom is provided with at the bottom of fixed head 7-1 and the case on 12 fixes, stub axle 7 is installed in well head with on the stub axle fixture 11 of cemented, by stub axle mounting flange 7-2, fixed screw 7-3 and stub axle 7 fix, secondary bearing pin 4,9 respectively by secondary pin sleeve 3-3,5-1,8-4,10-2 and preceding left box body 3 and back left box body 5, preceding right case 10 links to each other with back right case 8, and left box body 3 and preceding right case 10 rotate around back left box body 5 and back right case 8 respectively before making; Lock device is by coded lock 15, remote control resets and locks 16, mechanical lock 17, emergency light lock 14 is formed, they are installed in the interlayer of preceding right case 10, interlayer is provided with casing backplate 10-1 outward, the lock body 15-3 of coded lock 15 is that hollow structure is with the level cylindrical, there are two locating hole 15-2 in the lock body front, in interior step 4-6 (figure is 4) alignment pin 15-5 and spring 15-6 is housed, (its principle and normal domestic use are phase-locked together) different in size of alignment pin, lock core 15-4 is that the cylinder of different-diameter is formed, the top of lock core is notched " U " type cylinder, the size of breach has nothing in common with each other, the afterbody of lock core is the large semicircle shape that has screw thread, be convenient to two notched jam plate 15-7 in fixing preceding right case 10 intraformational beds, earlier password board 15-1 is installed on the locating hole 15-2 when opening coded lock, utilize the special spanner rotational lock core 15-4 corresponding with it then, the breach that makes two jam plate 15-7 can be opened coded lock at same position; Remote control reset lock 15 and mechanical lock 17 be installed in before in the interlayer of right case 10, it links to each other by connecting rod 10-13 with stop pin 10-6 with the jam plate 15-7 of remote control lock 10-11, spring 10-15, coded lock respectively, (remote control reset the lock core of lock, mechanical lock identical with coded lock with lock body); Emergency light lock 14 is installed in the interlayer of preceding right case 10, lock body 14-1 is the cylindrical of step in the hollow structure band, a circular hole is arranged on interior step, lock core 14-2 is that the cylinder of different-diameter is formed, the lock core top has " one " font groove, be drilled with a circular hole on one side of groove, utilize special spanner rotational lock core 14-2 to make circular hole on the lock core and the circular hole centering of lock body 14-1, press explosion-proof emergency light switch in the casing by circular hole then; Above lockset interconnecting and acting on by connecting rod and spring, the switch of right case 10 and preceding left box body 3 before controlling, and in the interlayer before lock device, connecting rod and flame-proof switch all are installed in the right case 10, separate by the preceding right case backplate 10-1 and the external world.Power control is by oil pumper control cabinet 1, cable 2, storage battery 10-8, receiver of remote-control sytem 10-9, remote control lock 10-11, explosion-proof emergency light 10-10 and explosion-proof emergency light switch 10-14 form, transformer in the oil pumper control cabinet 1 becomes 380V or 220V alternating current into the required low-voltage DC of electric fixtures, among the storage battery 10-8 and receiver of remote-control sytem 10-9 before cable 2 inputs are contained in right case 10 interlayers, and by lead and explosion-proof emergency light 10-10, explosion-proof emergency light switch 10-14 connects, explosion-proof emergency light 10-10 is equipped with outward and the emergency light lock 14 emergency light backplate 10-5 that link to each other, receiver of remote-control sytem 10-9 is by lead control remote control lock 10-11, locking mechanical lock 17, storage battery 10-8 wherein, receiver of remote-control sytem 10-9, the joint that cable 2 is connected lead with each all is installed in the interlayer of sealing of electric fixtures backplate 10-3, can effectively stop the electric fixtures sparking and cause fire incident.Servicing unit is by the packing check device 6 and the ratchet 6-6 that is installed in the casing that are installed on the well head packing box pressing cap, ratchet spring 6-7 forms, two backplate 6-2 about installing on the packing check device 6,6-4, when the backplate outer edge respectively has a hole 6-1 to be convenient to dismantle packing pressure cap is sling, backplate 6-2, be equipped with inner pentagonal screw 6-3 on the 6-4, be fixed on the ratchet 6-5, backplate is installed in outside the casing can prevent that booty from entering in the casing, ratchet divides left and right sides two parts, by holding screw 6-8 ratchet and packing pressure cap are fixed, ratchet 6-6 and ratchet spring 6-7 are installed in casing, the packing pressure cap can only be clockwise rotated, thereby can not unload the packing pressure cap by pine, when casing is opened, can finish packing and add the work of unloading.

Claims (10)

1, a kind of well head theft-proof box device comprises box body device, lock device, power control and servicing unit; Box body device comprises (13) at the bottom of (12) at the bottom of preceding left box body (3), back left box body (5), back right case (8), preceding right case (10), the right case, the left case, stub axle (7) and secondary bearing pin (4,9); Lock device comprises coded lock (15), remote control reset lock (16), mechanical lock (17), emergency light lock (14); Power control comprises oil pumper control cabinet (1), cable (2) and is installed in storage battery (10-8), receiver of remote-control sytem (10-9), remote control lock (10-11), explosion-proof emergency light (10-10), the explosion-proof emergency light switch (10-14) in the preceding right case (10) and is connected lead; Servicing unit comprises packing check device (6) and the interior ratchet (6-6) of casing that is installed on the well head packing box pressing cap; The casing that it is characterized in that described well head theft-proof box is by centering on stub axle (7) and secondary bearing pin (4,9) the preceding left box body (3) that rotates mutually, back left box body (5), back right case (8), before (10) four small box of right case and two be installed in (12) at the bottom of the right case that can divide right and left in the casing, (13) are formed at the bottom of the case of a left side, lockset and electric fixtures are installed in preceding right case (or preceding left box body) (10), by stop pin (10-6) on the preceding right case (10) and preceding left box body (3) locking, lock device is by coded lock (15), the remote control lock (16) that resets, mechanical lock (17), emergency light lock (14) is formed, they are installed in respectively in the interlayer of preceding right case (10), they interconnect and act on by the connecting rod in the interlayer, stretching of control lock rationed marketing (10-6), realization is to the opening and closing of theft-proof box, lock device has preceding right case backplate (10-1) can prevent that booty from entering lockset and causing the lockset switch dumb outward, the remote control lock (16) that resets can be locked (10-11) and resets to remote control, coded lock (15) is used the special spanner switch by the outer password board of installing (15-1) of lock body (15-3); Power control becomes 380V or 220V alternating current into the required low-voltage DC of electric fixtures by the transformer in the oil pumper control cabinet (1), be contained in storage battery (10-8) and receiver of remote-control sytem (10-9) in preceding right case (10) interlayer through cable (2) input, and by lead and explosion-proof emergency light (10-10), explosion-proof emergency light switch (10-14) connects, the outer emergency light backplate (10-5) that links to each other with emergency light lock (14) that is equipped with of explosion-proof emergency light (10-10), emergency light backplate (10-5) can prevent that booty from polluting lampshade, and receiver of remote-control sytem (10-9) is by lead control remote control lock (10-11) locking mechanical lock (17); Servicing unit is made up of the ratchet (6-6) that is installed in packing check device (6) on the well head packing box pressing cap and the casing, and they are used and can prevent that pine from unloading the packing box pressure cap and stealing crude oil.

2, well head theft-proof box device according to claim 1, it is characterized in that described box body device is mainly by centering on stub axle (7) and secondary bearing pin (4,9) the preceding left box body (3) that rotates mutually, back left box body (5), back right case (8), before (10) four small box of right case and two be installed in (12) at the bottom of the right case that can divide right and left in the casing, (13) are formed at the bottom of the case of a left side, in preceding left box body (3), back left box body (5), the interior mount pin of back right case (8) is decided body (3-2,5-3,8-3), by pin three casings are synthesized 3/4 big integral body, in the preceding right case (10) lockset and electric fixtures are installed, by stop pin (10-6) on the preceding right case (10) and preceding left box body (3) locking, make it become as a whole.

3, well head theft-proof box device according to claim 1 and 2, it is characterized in that described box body device is drilled with air leakage hole (3-1,5-2,8-2,10-7) at the tank wall top of preceding left box body (3), back left box body (5), back right case (8), preceding right case (10), can make the flammable explosive gas volatilization, and in the middle part of the tank wall of preceding left box body (3), be welded with fire-fighting hole (3-4), succour when being convenient to breaking out of fire.

4, according to claim 1 or 2 or 3 described well head theft-proof box devices, it is characterized in that dividing at the bottom of the case of described box body device at the bottom of the right case 12 and left case at the bottom of 13 two parts, structure at the bottom of two casees is identical, they are installed in the casing, be connected with fixed head (7-1) on the stub axle (7) by fixed head (12-2), bottom at the bottom of the case respectively has four feets (12-1) to contact with ground, can be according to well head flow process situation field machining at the bottom of the case.

5, according to claim 1 or 2 or 3 or 4 described well head theft-proof box devices, " it " font structure is formed by two 90 ° of elbows in the bottom that it is characterized in that the stub axle (7) of described box body device, and be hidden in the casing, stub axle (7) and back left box body (5), back right case (8) is by stub axle sleeve (5-4,8-1) be connected, make two casings around stub axle (7) left-right rotation, stub axle bottom is provided with fixed head (7-1) and fixes with fixed head (12-1) on (12) at the bottom of the case, stub axle (7) is installed in well head with on the stub axle fixture (11) of cemented, by stub axle mounting flange (7-2), fixed screw (7-3) fixes with stub axle (7), secondary bearing pin (4,9) respectively by secondary pin sleeve (3-3,5-1,8-4,10-2) with preceding left box body (3) and back left box body (5), preceding right case (10) links to each other with back right case (8), preceding left box body (3) and preceding right case (10) are rotated around back left box body (5) and back right case (8) respectively, thereby can make preceding left box body (3), back left box body (5), back right case (8), preceding (10) four casings of right case are around stub axle (7) and secondary bearing pin (4,9) freely rotate.

6, according to claim 1 or 2 or 3 or 4 or 5 described well head theft-proof box devices, coded lock (15) is installed in the casing front that it is characterized in that the preceding right case (or preceding left box body) (10) of described box body device respectively, the remote control lock (16) that resets, mechanical lock (17) and emergency light lock (14), the connecting rod (10-13) that installation can make lockset interconnect and act in the interlayer of preceding right case (10), spring (10-12,10-15), stop pin (10-6), and part power control cable (2), storage battery (10-8), receiver of remote-control sytem (10-9), remote control lock (10-11), explosion-proof emergency light (10-10), explosion-proof emergency light switch (10-15) and lead also are installed in the interlayer, cable (2) wherein, storage battery (10-8), receiver of remote-control sytem (10-9) and whole terminal are installed in the electric fixtures backplate (10-3) of Sealed sandwich, and preceding right case (10) passes through lock device, power control drives stop pin (10-6) and realizes switch with preceding left box body (3).

7, well head theft-proof box device according to claim 1, it is characterized in that described lock device is by coded lock (15), the remote control lock (16) that resets, mechanical lock (17), emergency light lock (14) is formed, they are installed in the interlayer of preceding right case (or preceding left box body) (10), the outside is provided with casing backplate (10-1), the lock body (15-3) of coded lock (15) is a hollow structure and with the level cylindrical, there are two locating holes (15-2) in the lock body front, in interior step 4-6 (figure is 4) alignment pin (15-5) and spring (15-6) are housed, (its principle and normal domestic use are phase-locked together) different in size of alignment pin, lock core (15-4) is that the cylinder of different-diameter is formed, the top of lock core is notched " U " type cylinder, the size of breach has nothing in common with each other, the afterbody of lock core is the large semicircle shape that has screw thread, be convenient to the two notched jam plates (15-7) in fixing preceding right case (10) intraformational bed, earlier password board (15-1) is installed on the locating hole (15-2) when opening coded lock, utilize the special spanner rotational lock core (15-4) corresponding then with it, the breach that makes two jam plates (15-7) can be opened coded lock (coded lock wherein on same position, the remote control institute that resets, the lock core and the lock body of mechanical lock are basic identical).

8, according to claim 1 or 7 described well head theft-proof box devices, the emergency light lock (14) that it is characterized in that described lock device is installed in the interlayer of preceding right case (10), lock body (14-1) is the cylindrical of step in hollow structure and the band, a circular hole is arranged on interior step, lock core (14-2) is that the cylinder of different-diameter is formed, the lock core top has " one " font groove, be drilled with a circular hole on one side of groove, utilize special spanner rotational lock core (14-2) to make circular hole centering in circular hole on the lock core and the lock body (14-1), press explosion-proof emergency light switch (10-15) in the casing by circular hole then, and open the preceding emergency light backplate (10-5) of explosion-proof emergency light (10-10) by the connecting rod of preceding right case (10) interlayer.

9, well head theft-proof box device according to claim 1, it is characterized in that described power control is by oil pumper control cabinet (1), cable (2), storage battery (10-8), receiver of remote-control sytem (10-9), remote control lock (10-11), explosion-proof emergency light (10-10) and explosion-proof emergency light switch (10-14) are formed, transformer in the oil pumper control cabinet (1) becomes 380V or 220V alternating current into the required low-voltage DC of electric fixtures, in cable (2) input is contained in storage battery (10-8) and receiver of remote-control sytem (10-9) in preceding right case (10) interlayer, and by lead and explosion-proof emergency light (10-10), explosion-proof emergency light switch (10-14) connects, the outer emergency light backplate (10-5) that links to each other with emergency light lock (14) that is equipped with of explosion-proof emergency light (10-10), receiver of remote-control sytem (10-9) passes through lead, control remote control lock (10-11), locking mechanical lock (17), wherein storage battery (10-8), receiver of remote-control sytem (10-9), the joint that cable (2) is connected lead with each all is installed in the interlayer of sealing of electric fixtures backplate (10-3).

10, well head theft-proof box device according to claim 1, it is characterized in that described servicing unit is by being installed in the packing check device (6) on the well head packing box pressing cap and being installed in the interior ratchet (6-6) of casing, ratchet spring (6-7) is formed, go up two backplate (6-2 about installation at packing check device (6), 6-4), backplate outer edge-respectively have a hole (6-1) when being convenient to dismantle packing pressure cap to be sling, backplate (6-2, be equipped with inner pentagonal screw (6-3) 6-4), be fixed on the ratchet (6-5), backplate is installed in outside the casing can prevent that booty from entering in the casing, ratchet divides left and right sides two parts, by holding screw (6-8) ratchet and packing pressure cap are fixed, ratchet (6-6) and ratchet spring (6-7) are installed in casing, the packing pressure cap can only be clockwise rotated, thereby can not unload the packing pressure cap by pine, when casing is opened, can finish packing and add the work of unloading.

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