CN204402392U - A kind of sucker rod solution lock dog - Google Patents

Abstract

The utility model provides a kind of sucker rod solution lock dog, comprise unblock block body, unlock block body and comprise two ecto-entads in left and right gradually near the pushing tow fitting face drawn in, two pushing tow fitting faces when separating the rear side of lock dog by elevator body side being moved forward respectively with two after dead bolt be slidably matched and after extruding two respectively dead bolt close to each other.Sucker rod solution lock dog of the present utility model in use, unlock block body to move from back to front relative to elevator body, two pushing tow fitting faces respectively with two of elevator body after dead bolt be slidably matched, and dead bolt is relatively close after extruding two, thus the locking structure for locking sucker rod on elevator body is opened, sucker rod and elevator body can be made to depart from, and this unblock block operations is simple, easy to use, substantially increase and make sucker rod take off the success rate of card in process is speedily carried out rescue work in blowout.

Description

A kind of sucker rod solution lock dog

Technical field

the utility model relates to a kind of sucker rod solution lock dog.

Background technology

Oil is as industry and the requisite natural resource of economic development, and obtain the extensive use of the mankind, the oil exploitation engineering caused thus also develops rapidly.At present, well construction operation is frequent, in ground oil exploitation process, the oil reservoir of heavy oil wells buries more shallow, mutually gang up between oil reservoir when steam injection, larger impact is caused on the stability of reservoir oil layer, the change of the pressure of underground, under the impact of geological condition, cause the well control technique in construction operation process complicated and changeable, well control technique difficulty is increasing, slightly improperly will cause the phenomenon causing blowout because subsurface deposit pressure is excessive, the crude oil of high-pressure injection causes very large infringement to oil production equipment, larger potential safety hazard is brought to oil extraction operation personnel, simultaneously, the crude oil being ejected into external environment also causes very large pollution to environment, therefore, timely control is also rescued dangerous situation and is just seemed most important.

For such problem, main solution is exactly make sucker rod and rod elevator depart from time.Notification number is that the Chinese utility model patent of CN2555385Y provides a kind of rod elevator, comprise elevator body, elevator body realizes the relative fixing of elevator body and sucker rod by two to forward and backward dead bolt, when after two front dead bolts and two, dead bolt difference is close to each other, elevator body and sucker rod can be thrown off, after two front dead bolts and two dead bolt mutually away from time, elevator body can be relative fixing with sucker rod, in its natural state two to front dead bolt and rear dead bolt be in respectively under the resilient support effect of locking spring relative away from state.At present, make sucker rod throw off the method for rod elevator generally taking jarring rod elevator when there is blowout dangerous situation, but this method often can not effectively make front dead bolt or rear dead bolt separate fast, when dangerous situation occurs, situation is often more dangerous simultaneously, to the psychological pressure that staff is larger, often cause staff sucker rod effectively can not be made to throw off and rescue inefficacy, this just causes to rescue greatly affects.

Utility model content

The purpose of this utility model is to provide a kind of sucker rod solution lock dog, in order to solve when there is blowout dangerous situation, can not facilitate in time, effectively making sucker rod throw off the problem of elevator.

Sucker rod solution lock dog of the present utility model adopts following technical scheme: a kind of sucker rod solution lock dog, comprise unblock block body, described unblock block body comprises two, left and right to relative direction gradually near the pushing tow fitting face drawn in, described two pushing tow fitting faces when separating lock dog side being moved forward by the rear side of elevator body respectively with two after dead bolt be slidably matched and after extruding two respectively dead bolt close to each other.

Described unblock block body also comprise that the both sides up and down parallel interval that is positioned at two pushing tow fitting faces arranges for clamping the upper and lower bearing plate of elevator body, and with upper and lower bearing plate in the longitudinal direction spline to lead the upper clamp and lower clamp that coordinate.

Described upper clamp and lower clamp are respectively equipped with for passing for sucker rod and the slot to make way coordinated that leads with sucker rod.

Described upper clamp and/or lower clamp are provided with the mounting groove for installing latch of downward-extension, described latch is used for locking elevator body and prevents it from deviating from from the front side unlocking block body, the leading flank of described latch is lead-in chamfered, trailing flank is the stopping surface for coordinating with elevator body block, is provided with for being stretched out mounting groove and the back-moving spring coordinated with elevator body block by during pressure in the indentation mounting groove when latch is pressed, not between the mounting groove bottom land of described latch and correspondence.

The rear side of described unblock block body is provided with the force handle perpendicular to upper and lower clamp.

Sucker rod solution lock dog of the present utility model comprises unblock block body, unlock block body and be provided with two to relative direction gradually near the pushing tow fitting face drawn in, in use, unlock block body to move from back to front relative to elevator body, two pushing tow fitting faces respectively with two of elevator body after dead bolt be slidably matched, and dead bolt is relatively close after extruding two, thus the locking structure for locking sucker rod on elevator body is opened, sucker rod and elevator body can be made to depart from, this unblock block operations is simple, easy to use, substantially increase and make sucker rod take off the success rate of card in process is speedily carried out rescue work in blowout.

Further, unlock the clamp up and down that block body also comprises about two parallel interval settings, about two clamps can be fitted with the bearing plate up and down of elevator body, when separating lock dog and moving forward relative to elevator body and to make the locking structure on elevator body open, axis around elevator body rotates and can sucker rod be made fast directly to throw off elevator body, makes de-card more effectively, fast.

Further, upper and lower clamp is respectively equipped with and passes and the slot to make way coordinated that leads with sucker rod for sucker rod, in the process that unblock block body moves forward relative to elevator body, by slot to make way to coordinate with the guiding of sucker rod make mobile more accurate, can not produce and depart from, avoid causing operate miss.

Further, upper clamp and/or lower clamp are provided with the latch preventing elevator body from departing from from the front side unlocking block body that can fluctuate, the leading flank of latch is for guiding pushing tow fitting face, back-moving spring is provided with between latch and corresponding clamp, in the process that solution lock dog moves forward, the bearing plate up and down of elevator body makes it not affect the movement of separating lock dog by guiding wedge surface pressing lock stops, after solution lock dog moves into place, latch is directly ejected by back-moving spring and block elevator body prevents elevator body from deviating from from the front side of separating lock dog, avoid unlocking timeliness.

Further, the rear side unlocking block body is provided with force handle, can rotate solution lock dog easily and make sucker rod depart from elevator body, operate more light, safety by force handle staff.

Accompanying drawing explanation

Fig. 1 is the stereogram of a kind of sucker rod solution lock dog embodiment of the present utility model;

Fig. 2 is the front view of a kind of sucker rod solution lock dog embodiment of the present utility model;

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

Fig. 4 is the top view of Fig. 2;

Fig. 5 is the sectional view in B-B face in Fig. 2;

Fig. 6 is the sectional view in A-A face in Fig. 4;

Fig. 7 is the partial sectional view of latch position;

Fig. 8 is sucker rod solution lock dog using state figure of the present utility model.

Detailed description of the invention

The embodiment of a kind of sucker rod solution lock dog of the present utility model: as shown in figs. 1-7, comprise and unlock block body 1, unlock block body 1 and be provided with two symmetrical pushing tow fitting faces 112, two pushing tow fitting faces are V-type on the horizontal section unlocking block body 1, and the opening of V-type toward the front, certainly, in other embodiments, two pushing tow fitting faces can be the conical surface or the arc surface drawn in gradually.Unlock block body 1 and be respectively equipped with upper clamp 11 and lower clamp 12 in the both sides up and down of two pushing tow fitting faces 112, upper clamp 11 and lower clamp 12 are respectively equipped with two extend along the longitudinal direction respectively on above-below direction runs through, lower clamp 11, the slot to make way 13111 of 12, 121, two slots to make way 13111, 121 lay respectively at, lower clamp 11, the centre position of 12, lower clamp 12 is respectively equipped with the installing hole for installing latch 120 of two upper downward-extensions in the both sides of slot to make way 13121, mounting hole site is in the close foremost position place of lower clamp, installing hole is up-small and down-big ladder nibs, latch 120 from the lower end of installing hole dress as stretched out the upper surface of lower clamp 12 installing hole, the lower end of latch 120 is provided with the outer convex edge for coordinating with the cascaded surface block of installing hole, the outer convex edge of latch 120 lower end coordinates with cascaded surface and prevents latch 120 from deviating from from the upper end of installing hole, the section lower end, large footpath of installing hole is provided with internal thread segment, installing hole is installed with the nut 15 in the aperture, lower end of shutoff installing hole by internal thread segment, the back-moving spring 14 of the upper surface of lower clamp 12 is stretched out in the upper end be provided with between nut 15 and latch 120 for support lock stops 120, latch 120 for leading flank be the wedge of wedge surface, the wedge surface of latch 120 and vertical curve are that certain inclination angle rolls tiltedly backward, the rear side unlocking block body 1 is also provided with the handle installing hole for installing force handle 10 extended in vertical direction, force handle 10 to be arranged in handle installing hole and to downward-extension by certain length, the end of force handle 10 tilts backwards.

Sucker rod solution lock dog of the present utility model in use, the rear side of the spacial alignment elevator body separated between the upper and lower clamp of lock dog is also promoted separate lock dog to move forward, now, two clamps up and down separating lock dog fit with the bearing plate up and down of elevator body respectively, the wedge surface of two latch on the lower clamp of the lower bearing plate being unlocked by pressing block body of elevator body by latch by compressing into installing hole, two the pushing tow fitting faces unlocking block body contact with dead bolt after two of elevator body, along with separating moving forward of lock dog, two pushing tow fitting faces respectively with two after dead bolt be slidably matched and after extruding two dead bolt close to each other, two front dead bolts of elevator body are also close gradually under the stirring of rear dead bolt, thus the locking structure fixing sucker rod for locking on elevator body is opened gradually, slot to make way 13 in the middle of the clamp up and down of unblock block body can not affect moving forward of unblock block body for sucker rod fixing on elevator body passes in moving process, slot to make way 13 on upper and lower clamp also leads with the movement to unlocking block body that coordinates of sucker rod by both sides cell wall, avoid unlocking block body to offset in the process moved forward relative to elevator body, after the latch reach of the lower clamp front end unlocking block body exceeds the lower bearing plate of elevator body, latch under the effect of back-moving spring 14, stretch out the upper surface of lower clamp and block on front side of the lower bearing plate of elevator body, now, after two of elevator body, dead bolt draws in nearest position and makes two of elevator body front dead bolts also close to each other under the extruding of two pushing tow fitting faces unlocking block body, sucker rod locking fixed structure on elevator body is just opened, by the block of latch prevent elevator body dead bolt to unlock block body pushing tow fitting face reaction force under with unblock block body generation relative movement, ensure that the front dead bolt of elevator body is in opening all the time simultaneously, upwards rotating the force handle separated on rear side of lock dog can make sucker rod throw off rod elevator.

The unblock block body of the present embodiment comprises upper and lower clamp, when separating lock dog and being inserted on elevator body, upper and lower clamp can block solution lock dog, be convenient to make elevator body rotate together with solution lock dog when rotation urging handle, in other embodiments, upper and lower clamp can not be set, by separate lock dog be pushed to that the front and back dead bolt of elevator body is close to each other to be opened to locking structure time, by directly knocking sucker rod, it is got from elevator body.

The clamp up and down of the present embodiment is provided with slot to make way, in other embodiments, the plate that upper and lower clamp can be less for the width being only positioned at sucker rod side, now in the movable process of separating lock dog up and down clamp can not because of keep off by sucker rod and can not move forward.

The lower clamp of the present embodiment is provided with latch, in other embodiments, lower clamp can not establish latch, also can with the effect of deviating from from solution lock dog front to prevention elevator body by the extended length of upper and lower clamp, or on upper clamp, establish latch also can play identical effect, or be all provided with latch on upper and lower clamp.

The latch of the present embodiment is wedge, and the wedge surface of wedge is in vertical direction with the sweptback wedge surface of certain angle, and in other embodiments, latch can be cone pin.

Latch in the present embodiment be positioned at lower clamp foremost near, move to automatic spring when lock pin exceeds the lower bearing plate of elevator body block is carried out to elevator body separating lock dog, in other embodiments, till latch can being located at the middle part of upper clamp and/or lower clamp, now need elevator body to be provided with the lock groove corresponding with latch, when separating lock dog and opening relative to the locking structure that elevator body moves forward on elevator body, latch just moves to the position corresponding with lock groove.

The rear side separating lock dog in the present embodiment is provided with for rotating the force handle separating lock dog, in other embodiments, and can not facility power handle, and directly separate lock dog and make it rotate by knocking and sucker rod is thrown off.

Sucker rod solution lock block structure of the present utility model is simple, easy to operate, when there is gas blowout accident, the de-card of sucker rod can be realized quickly and easily, force handle simultaneously when operating on rear side of staff's direct actuating solution lock dog, can not only rotate easily and unlock sucker rod, certain distance can also be had with sucker rod, have higher safety.

Claims (5)

1. a kind of sucker rod solution lock dog, it is characterized in that, comprise unblock block body, described unblock block body comprises two, left and right to relative direction gradually near the pushing tow fitting face drawn in, described two pushing tow fitting faces when separating lock dog side being moved forward by the rear side of elevator body respectively with two after dead bolt be slidably matched and after extruding two respectively dead bolt close to each other.

2. sucker rod solution lock dog according to claim 1, it is characterized in that, described unblock block body also comprise that the both sides up and down parallel interval that is positioned at two pushing tow fitting faces arranges for clamping the upper and lower bearing plate of elevator body, and with upper and lower bearing plate in the longitudinal direction spline to lead the upper clamp and lower clamp that coordinate.

3. sucker rod solution lock dog according to claim 2, is characterized in that, described upper clamp and lower clamp are respectively equipped with for passing for sucker rod and the slot to make way coordinated that leads with sucker rod.

4. sucker rod solution lock dog according to claim 3, it is characterized in that, described upper clamp and/or lower clamp are provided with the mounting groove for installing latch of downward-extension, described latch is used for locking elevator body and prevents it from deviating from from the front side unlocking block body, the leading flank of described latch is lead-in chamfered, trailing flank is the stopping surface for coordinating with elevator body block, be provided with between the mounting groove bottom land of described latch and correspondence in the indentation mounting groove when latch is pressed, mounting groove is not stretched out and the back-moving spring coordinated with elevator body block by during pressure.

5. sucker rod solution lock dog according to claim 1-4 any one, is characterized in that, the rear side of described unblock block body is provided with the force handle perpendicular to upper and lower clamp.