CN214944028U - Oil pipe anti-toppling device and workover rig - Google Patents

Abstract

The application provides an oil pipe anti-toppling device and workover rig belongs to oil field production safety technical field. This oil pipe anti-overturning device includes: the device comprises a limiting rod, a first telescopic rod, a second telescopic rod, a first supporting rod and a second supporting rod; one end of the first telescopic rod is used for being connected with a first supporting point of the derrick, one end of the second supporting rod is used for being connected with a second supporting point of the derrick, the other end of the first telescopic rod is connected with the other end of the second telescopic rod through a limiting rod, and the first supporting point and the second supporting point are at the same height of the derrick; first telescopic link and second telescopic link are used for fixed gag lever post, and are used for changing the distance between gag lever post and the derrick, and first bracing piece and second bracing piece are used for supporting the gag lever post. Because this oil pipe prevents that gag lever post in the upset can block that oil pipe inclines and falls to ground, avoided subaerial staff by the occurence of failure of oil pipe casualties, so oil pipe prevents that the device of empting can improve workover rig's security.

Description

Oil pipe anti-toppling device and workover rig

Technical Field

The application relates to the field of oil field production safety, in particular to an oil pipe anti-dumping device and a workover rig.

Background

In the production process of an oil field, when an oil well is maintained, an oil pipe in the oil well needs to be transferred or a new oil pipe needs to be hoisted into the oil well. Currently, it is common to retrieve the tubing from the well or to hoist new tubing into the well by means of a workover rig.

In the related technology, the workover rig comprises a derrick and a hoisting piece, wherein one end of the hoisting piece is arranged at the top end of the derrick, and the other end of the hoisting piece is used for being connected with an oil pipe; the derrick is used for improving supporting force for the hoisting piece, and the hoisting piece is used for installing an oil pipe.

However, when the oil pipe buckle between the other end of the hoisting piece and the oil pipe falls off, the oil pipe can fall to the ground, and accidents of casualties are caused. The workover rig is of poor safety.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides an oil pipe anti-overturning device, and the safety of a workover rig can be improved. The technical scheme is as follows:

in one aspect, an embodiment of the present application provides an oil pipe anti-toppling device, the oil pipe anti-toppling device includes: the device comprises a limiting rod, a first telescopic rod, a second telescopic rod, a first supporting rod and a second supporting rod;

one end of the first telescopic rod is used for being connected with a first supporting point of a derrick, one end of the second supporting rod is used for being connected with a second supporting point of the derrick, the other end of the first telescopic rod is connected with the other end of the second telescopic rod through the limiting rod, and the first supporting point and the second supporting point are at the same height of the derrick;

one end of the first support rod is used for being connected with a third support point of the derrick, one end of the second support rod is used for being connected with a fourth support point of the derrick, the other end of the first support rod is connected with the other end of the second support rod through the limiting rod, and the third support point and the fourth support point are lower than the first support point at the same height on the derrick;

the first telescopic rod and the second telescopic rod are used for fixing the limiting rod and changing the distance between the limiting rod and the derrick, and the first supporting rod and the second supporting rod are used for supporting the limiting rod.

In one possible implementation manner, the first telescopic rod includes a first fixing rod, a first slide rail and a first slide block;

the first slide rail is arranged in the first fixing rod, and the first slide block is arranged at one end of the first slide rod;

the first sliding rod moves relative to the first fixing rod through the first sliding block and the first sliding rail.

In another possible implementation manner, a first rail notch is formed in the first slide rail; the first sliding block comprises a first stop pin, a first bearing and a first lock cap;

the first gear pin is arranged at one end of the first sliding rod, the first bearing is arranged in the first rail notch, and the first gear pin penetrates through the axis of the first bearing and is connected with the first lock cap;

the first sliding bar moves relative to the first fixing bar through the first bearing and the first track notch; the first stop pin is connected with the first lock cap and used for fixing the moving position of the first sliding rod.

In another possible implementation manner, the second telescopic rod includes a second fixed rod, a second sliding rail and a second sliding block;

the second slide rail is arranged in the second fixing rod, and the second slide block is arranged at one end of the second slide rod;

the second sliding rod moves relative to the second fixing rod through the second sliding block and the second sliding rail.

In another possible implementation manner, a second rail notch is formed in the second slide rail; the second sliding block comprises a second gear pin, a second bearing and a second locking cap;

the second gear pin is arranged at one end of the second sliding rod, the second bearing is arranged in the second rail notch, and the second gear pin penetrates through the axis of the second bearing and is connected with the second lock cap;

the second sliding bar moves relative to the second fixed bar through the second bearing and the second track notch; the second stop pin is connected with the second lock cap and used for fixing the moving position of the second sliding rod.

In another possible implementation manner, the oil pipe anti-toppling device further comprises a steel wire rope, a first fixed pulley and a steel wire rope winch;

the first fixed pulley is arranged at the top end of the derrick, the wire rope winch is arranged at the bottom end of the derrick, and one end of the wire rope is connected with one end of the limiting rod and is connected with the wire rope winch through the first fixed pulley;

the steel wire rope winch is used for controlling the length of the steel wire rope, the steel wire rope is used for changing the height of the limiting rod, and the first fixed pulley is used for reducing the friction resistance of the steel wire rope in the sliding process.

In another possible implementation manner, one end of the limiting rod is provided with a first movable pulley;

one end of the steel wire rope is fixed at the top end of the derrick and is connected with the steel wire rope winch sequentially through the first movable pulley and the first fixed pulley.

In another possible implementation, the first movable pulley includes a first hub, a first bearing, a lock nut, and a protective cover;

one end of the first bearing is connected with one end of the limiting rod, the other end of the first bearing is connected with the locking nut, the first hub is arranged on the outer side of the first bearing, and the protective cover is arranged on the outer side of the first hub;

the first bearing is used for driving the first hub to rotate, the locking nut is used for fixing the first bearing, and the protective cover is used for preventing the steel wire rope from falling off from the first hub.

In another possible implementation, the first fixed pulley includes a second hub, a second bearing, and a support pin;

the supporting pin penetrates through the second bearing and is used for providing supporting force for the second bearing, and the second hub is arranged on the outer side of the second bearing;

the second bearing is used for driving the second hub to rotate, and the second hub is used for reducing the friction resistance of the steel wire rope in the sliding process.

In another aspect, an embodiment of the present application provides a workover rig, the workover rig includes: the oil pipe anti-dumping device comprises a derrick, a hoisting piece and any one of the possible implementation manners;

the oil pipe anti-dumping device is arranged in the middle of the derrick; one end of the hoisting piece is arranged at the top end of the derrick, and the other end of the hoisting piece is used for being connected with an oil pipe;

the derrick is used for improving the supporting force of the oil pipe anti-tilting device and the hoisting piece, the hoisting piece is used for installing the oil pipe, and the oil pipe anti-tilting device is used for preventing the oil pipe from falling.

The technical scheme provided by the embodiment of the application has the beneficial effects that at least:

the embodiment of the application provides an oil pipe anti-overturning device, because this oil pipe anti-overturning device is connected through first telescopic link between the gag lever post in the face of inclining and the first strong point of derrick, be connected through the second telescopic link between the second strong point with the derrick, like this at workover rig operation in-process, even oil pipe between hoist and mount piece and the oil pipe is buckled and is taken place to drop, the gag lever post also can block that oil pipe inclines to topple over to ground, avoided subaerial staff to be by the occurence of failure of oil pipe, so oil pipe anti-overturning device can improve workover rig's security.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic top view of an anti-tipping device for an oil pipe according to an embodiment of the present disclosure;

FIG. 2 is a schematic side view of an anti-toppling device for an oil pipe according to an embodiment of the present application;

fig. 3 is a schematic structural view of a first telescopic rod provided according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a workover rig according to an embodiment of the present application.

Reference numerals:

10 oil pipe anti-toppling device

11 limiting rod

12 first telescopic rod

121 first fixing lever

122 first slide bar

123 first slide rail

124 first slide

13 second telescopic rod

14 first support bar

15 second support bar

20 derrick

30 hoisting piece

Detailed Description

To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

Fig. 1 and 2 are schematic structural views of an oil pipe anti-tipping device provided according to an embodiment of the application. Referring to fig. 1 and 2, the oil pipe anti-toppling device includes: the device comprises a limiting rod 11, a first telescopic rod 12, a second telescopic rod 13, a first supporting rod 14 and a second supporting rod 15;

one end of a first telescopic rod 12 is used for being connected with a first supporting point of a derrick, one end of a second supporting rod 15 is used for being connected with a second supporting point of the derrick, the other end of the first telescopic rod 12 is connected with the other end of a second telescopic rod 13 through a limiting rod 11, and the first supporting point and the second supporting point are at the same height of the derrick;

one end of the first supporting rod 14 is used for being connected with a third supporting point of the derrick, one end of the second supporting rod is used for being connected with a fourth supporting point of the derrick, the other end of the first supporting rod 14 is connected with the other end of the second supporting rod 15 through the limiting rod 11, and the third supporting point and the fourth supporting point are lower than the first supporting point on the derrick at the same height;

the first telescopic rod 12 and the second telescopic rod 13 are used for fixing the limiting rod 11 and changing the distance between the limiting rod 11 and the derrick, and the first support rod 14 and the second support rod 15 are used for supporting the limiting rod 11.

The embodiment of the application provides an oil pipe anti-overturning device, because this oil pipe anti-overturning device is connected through first telescopic link 12 between the gag lever post 11 in the face of inclining and the first strong point of derrick, be connected through second telescopic link 13 between the second strong point with the derrick, like this at workover rig operation in-process, even oil pipe between hoist and mount piece and the oil pipe is detained and is taken place to drop, gag lever post 11 also can block the oil pipe slope and fall to ground, avoided subaerial staff by the occurence of failure of oil pipe, so oil pipe anti-overturning device can improve workover rig's security.

Introduction of the stopper rod 11: one end of the first telescopic rod 12 is used for being connected with a first supporting point of a derrick, one end of the second supporting rod 15 is used for being connected with a second supporting point of the derrick, the other end of the first telescopic rod 12 is connected with the other end of the second telescopic rod 13 through the limiting rod 11, and the first supporting point and the second supporting point are at the same height of the derrick.

In a possible implementation manner, one end of the first telescopic rod 12 is connected with the first supporting point of the derrick through welding or through a bolt; the other end of the first telescopic rod 12 is connected with the limiting rod 11 through welding. One end of the second telescopic rod 13 is connected with a second supporting point of the derrick through welding or through a bolt; the other end of the second telescopic rod 13 is connected with the limiting rod 11 through welding.

In a possible implementation manner, the other end of the first telescopic rod 12 is provided with a first fixing ring matched with the diameter of the limiting rod 11, and the other end of the second telescopic rod 13 is provided with a second fixing ring matched with the diameter of the limiting rod 11; the other end of the first telescopic rod 12 is connected with the limiting rod 11 through a first fixing ring, and the other end of the second telescopic rod 13 is connected with the limiting rod 11 through a second fixing ring.

It should be noted that the length of the stop rod 11 matches the width of the derrick. For example, the width of the derrick is 1m, and the length of the stopper rod 11 may be 1 m. The diameter of the stop rod 11 may be any value between 1cm and 8cm, for example, 2cm, 3cm, 4cm, etc. The material of the stop rod 11 may be metal, such as iron, copper, etc., or metal alloy, such as carbon steel, titanium alloy, etc. In the embodiment of the present application, the size and material of the stopper rod 11 are not particularly limited, and may be set and modified as needed.

In one possible implementation manner, the oil pipe anti-toppling device further comprises a steel wire rope, a first fixed pulley and a steel wire rope winch; the first fixed pulley is arranged at the top end of the derrick, the steel wire rope winch is arranged at the bottom end of the derrick, and one end of the steel wire rope is connected with one end of the limiting rod 11 and is connected with the steel wire rope winch through the first fixed pulley; the steel wire rope winch is used for controlling the length of the steel wire rope, the steel wire rope is used for changing the height of the limiting rod 11, and the first fixed pulley is used for reducing the friction resistance of the steel wire rope in the sliding process.

The point to be described is that the steel wire rope can not only adjust the height of the limiting rod 11, but also fix the limiting rod 11, so that the falling off of the limiting rod 11 and the casualties of ground workers can be avoided, and the safety of the oil pipe anti-falling device is improved.

In one possible implementation, the wire rope winch is connected to the drive mechanism. Alternatively, the driving mechanism may be a motor, and the motor controls the cable winch to rotate in the forward direction or the reverse direction, so as to control the length of the cable.

In a possible implementation manner, one end of the limiting rod 11 is provided with a first movable pulley; one end of the steel wire rope is fixed at the top end of the derrick and is connected with the steel wire rope winch sequentially through the first movable pulley and the first fixed pulley.

In one possible implementation, the first movable pulley includes a first hub, a first bearing, a lock nut, and a protective cover; one end of the first bearing is connected with one end of the limiting rod 11, the other end of the first bearing is connected with the locking nut, the first hub is arranged on the outer side of the first bearing, and the protective cover is arranged on the outer side of the first hub; the first bearing is used for driving the first hub to rotate, the locking nut is used for fixing the first bearing, and the protective cover is used for preventing the steel wire rope from falling off from the first hub. In a possible implementation, one end of the first bearing is connected with one end of the limiting rod 11 through threads.

In one possible implementation, the first fixed pulley includes a second hub, a second bearing, and a support pin; the supporting pin penetrates through the second bearing and is used for providing supporting force for the second bearing, and the second hub is arranged on the outer side of the second bearing; and the second bearing is used for driving the second hub to rotate, and the second hub is used for reducing the friction resistance of the steel wire rope in the sliding process.

In this application embodiment, because wire rope's one end is fixed on the top of derrick, loops through first movable pulley and first fixed pulley and is connected with the wire rope capstan winch, like this when the wire rope capstan winch is rotatory, first movable pulley and first fixed pulley can reduce the frictional resistance of wire rope removal in-process, and then have improved the efficiency that changes the height of gag lever post 11.

Introduction of the first telescopic rod 12: one end of the first telescopic rod 12 is used for being connected with a first supporting point of the derrick, and the other end of the first telescopic rod 12 is connected with the other end of the second telescopic rod 13 through a limiting rod 11.

In a possible implementation, referring to fig. 3, the first telescopic rod 12 comprises a first fixed rod 121, a first sliding rod 122, a first sliding rail 123 and a first sliding block 124; the first slide rail 123 is arranged in the first fixing rod 121, and the first slider 124 is arranged at one end of the first slide bar 122; the first sliding bar 122 moves relative to the first fixing bar 121 through the first slider 124 and the first sliding rail 123.

In one possible implementation, the first slide rail 123 is provided with a first rail notch; the first slider 124 includes a first stopper pin, a first bearing, and a first locking cap; a first gear pin is arranged at one end of the first sliding rod 122, a first bearing is arranged in the first rail notch, and the first gear pin penetrates through the axis of the first bearing and is connected with the first lock cap; a first slide bar 122 moving with respect to the first fixing bar 121 through a first bearing and a first rail notch; the first stopper pin is connected to the first locking cap for fixing the moving position of the first slide bar 122.

In a possible implementation manner, a first external thread is arranged on the first gear pin, a first groove is arranged on the first lock cap, a first internal thread is arranged in the first groove, and the first gear pin is connected with the first lock cap through the first external thread and the first internal thread.

It should be noted that the length of the first track notch is the same as the length variation value of the first telescopic rod 12. The length of the first track slot may be any value between 0.1m and 1 m; e.g., 0.4m, 0.5m, 0.6m, etc.; in the embodiment of the present application, the value of the length of the first rail notch is not particularly limited, and may be set and modified as needed.

Another point to be noted is that the length of the first telescopic rod 12 is the distance between the limit rod 11 and the derrick. The length of the first telescopic rod 12 may be any value between 0.5m and 1.5m, for example, 0.8m, 1.0m, 1.1m, etc. The diameter of the first telescopic rod 12 may be any value between 1cm and 8cm, for example, 2cm, 3cm, 4cm, etc. The material of the first telescopic rod 12 can be metal, such as iron, copper, etc., or metal alloy, such as carbon steel, titanium alloy, etc. In the embodiment of the present application, the size and material of the first telescopic rod 12 are not particularly limited, and can be set and modified as required.

Introduction of the second telescopic rod 13: one end of a second support rod 15 is used for connecting with a second support point of the derrick, the other end of the first telescopic rod 12 is connected with the other end of the second telescopic rod 13 through a limiting rod 11, and the first support point and the second support point are at the same height of the derrick; the first telescopic rod 12 and the second telescopic rod 13 are used for fixing the limiting rod 11 and changing the distance between the limiting rod 11 and the derrick.

In a possible implementation manner, the second telescopic rod 13 includes a second fixed rod, a second sliding rail and a second sliding block; the second slide rail is arranged in the second fixed rod, and the second slide block is arranged at one end of the second slide rod; and the second sliding rod moves relative to the second fixed rod through the second sliding block and the second sliding rail.

In one possible implementation manner, a second rail notch is arranged on the second sliding rail; the second sliding block comprises a second gear pin, a second bearing and a second locking cap; the second gear pin is arranged at one end of the second sliding rod, the second bearing is arranged in the second rail notch, and the second gear pin penetrates through the axis of the second bearing and is connected with the second lock cap; the second sliding rod moves relative to the second fixed rod through a second bearing and a second track notch; the second stop pin is connected with the second lock cap and used for fixing the moving position of the second sliding rod.

In a possible implementation manner, a second external thread is arranged on the second gear pin, a second groove is arranged on the second lock cap, a second internal thread is arranged in the second groove, and the second gear pin is connected with the second lock cap through the second external thread and the second internal thread.

It should be noted that the length of the second track notch is the same as the length variation value of the second telescopic rod 13. The length of the second track slot may be any value between 0.1m and 1 m; e.g., 0.4m, 0.5m, 0.6m, etc.; in the embodiment of the present application, the value of the length of the second rail notch is not particularly limited, and may be set and modified as needed.

Another point to be noted is that the length of the second telescopic rod 13 is equal to the distance between the limit rod 11 and the derrick. The length of the second telescopic rod 13 may be any value between 0.5m and 1.5m, for example, 0.8m, 1.0m, 1.1m, etc. The diameter of the second telescopic rod 13 may be any value between 1cm and 8cm, for example, 2cm, 3cm, 4cm, etc. The material of the second telescopic rod 13 can be metal, such as iron, copper, etc., or metal alloy, such as carbon steel, titanium alloy, etc. In the embodiment of the present application, the size and material of the second telescopic rod 13 are not particularly limited, and can be set and modified as needed.

Description of the first support bar 14 and the second support bar 15: one end of the first supporting rod 14 is used for being connected with a third supporting point of the derrick, one end of the second supporting rod is used for being connected with a fourth supporting point of the derrick, the other end of the first supporting rod 14 is connected with the other end of the second supporting rod 15 through the limiting rod 11, and the third supporting point and the fourth supporting point are lower than the first supporting point on the derrick at the same height; the first telescopic rod 12 and the second telescopic rod 13 are used for fixing the limiting rod 11 and changing the distance between the limiting rod 11 and the derrick, and the first support rod 14 and the second support rod 15 are used for supporting the limiting rod 11.

It should be noted that the lengths of the first support rod 14 and the second support rod 15 are the same and are matched with the lengths of the first telescopic rod 12 and the second telescopic rod 13; a stable triangle is formed among the first supporting rod 14, the first telescopic rod 12 and the derrick, and a stable triangle is formed among the second supporting rod 15, the second telescopic rod 13 and the derrick. The diameter of the first support bar 14 and the second support bar 15 may be any value between 1cm and 8cm, for example, 2cm, 3cm, 4cm, etc. The material of the first support bar 14 and the second support bar 15 may be metal, such as iron, copper, etc., or metal alloy, such as carbon steel, titanium alloy, etc. In the embodiment of the present application, the size and material of the first support bar 14 and the second support bar 15 are not particularly limited, and may be set and modified as needed.

In one possible implementation manner, the oil pipe anti-dumping device further comprises a first fixing piece and a second fixing piece; one end of the first supporting rod 14 is connected with the third supporting point of the derrick through a first fixing part, and one end of the second supporting rod 15 is connected with the third supporting point of the derrick through a second fixing part.

Optionally, the first fixing member includes a first cotter pin and a first connecting pin, and the second fixing member includes a second cotter pin and a second connecting pin. One end of the first supporting rod 14 is connected with the third supporting point of the derrick through a first split pin and a first connecting pin, and one end of the second supporting rod 15 is connected with the third supporting point of the derrick through a second split pin and a second connecting pin.

In a possible implementation, the first supporting rod 14 includes a third fixing rod, a third sliding rail and a third sliding block; the third slide rail is arranged in the third fixed rod, and the third slide block is arranged at one end of the third slide rod; and the third sliding rod moves relative to the third fixed rod through the third sliding block and the third sliding rail.

In one possible implementation, a third rail notch is formed on the third slide rail; the third sliding block comprises a third gear pin, a third bearing and a third locking cap; the third gear pin is arranged at one end of the third sliding rod, the third bearing is arranged in the third rail notch, and the third gear pin penetrates through the axis of the third bearing and is connected with the third lock cap; the third sliding rod moves relative to the third fixed rod through a third bearing and a third rail notch; and the third gear pin is connected with the third lock cap and used for fixing the moving position of the third sliding rod.

In a possible implementation manner, a third external thread is arranged on the third gear pin, a third groove is arranged on the third lock cap, a third internal thread is arranged in the third groove, and the third gear pin is connected with the third lock cap through the third external thread and the third internal thread.

It should be noted that the length of the notch of the third track is the same as the length of the third telescopic rod. The length of the third track notch can be any value between 0.1m and 1 m; e.g., 0.4m, 0.5m, 0.6m, etc.; in the embodiment of the present application, the value of the length of the third rail groove is not particularly limited, and may be set and modified as needed.

In one possible implementation manner, the fourth telescopic rod includes a fourth fixing rod, a fourth sliding rail and a fourth sliding block; the fourth slide rail is arranged in the fourth fixed rod, and the fourth slide block is arranged at one end of the fourth slide rod; and the fourth sliding rod moves relative to the fourth fixed rod through the fourth sliding block and the fourth sliding rail.

In another possible implementation manner, a fourth rail notch is formed in the fourth sliding rail; the fourth sliding block comprises a fourth gear pin, a fourth bearing and a fourth locking cap; the fourth gear pin is arranged at one end of the fourth sliding rod, the fourth bearing is arranged in the fourth track notch, and the fourth gear pin penetrates through the axis of the fourth bearing and is connected with the fourth lock cap; a fourth slide bar moving relative to the fourth fixed bar through a fourth bearing and a fourth rail slot; and the fourth gear pin is connected with the fourth lock cap and used for fixing the moving position of the fourth sliding rod.

In a possible implementation manner, a fourth external thread is arranged on the fourth shift pin, a fourth groove is arranged on the fourth lock cap, a fourth internal thread is arranged in the fourth groove, and the fourth shift pin and the fourth lock cap are connected through the fourth external thread and the fourth internal thread.

It should be noted that the length of the fourth track notch is the same as the length of the fourth telescopic rod. The length of the fourth track slot may be any value between 0.1m and 1 m; e.g., 0.4m, 0.5m, 0.6m, etc.; in the embodiment of the present application, the value of the length of the fourth track slot is not particularly limited, and may be set and modified as needed.

Fig. 4 is a schematic structural diagram of a workover rig according to an embodiment of the present application. Referring to fig. 4, the workover rig includes: derrick 20, sling 30, and tubing tip preventer 10 in any of the possible implementations described above; the oil pipe anti-dumping device 10 is arranged in the middle of the derrick 20; one end of the hoisting piece 30 is arranged at the top end of the derrick 20, and the other end of the hoisting piece 30 is used for being connected with an oil pipe; the derrick 20 is used for improving supporting force for the oil pipe anti-dumping device 10 and the hoisting piece 30, the hoisting piece 30 is used for installing the oil pipe, and the oil pipe anti-dumping device 10 is used for preventing the oil pipe from dumping when falling off.

The embodiment of the application provides a workover rig, because be connected through first telescopic link 12 between the gag lever post 11 in this workover rig and the first strong point of derrick 20, be connected through second telescopic link 13 between the second strong point with derrick 20, like this at the workover rig operation in-process, even oil pipe between hoist and mount piece 30 and the oil pipe is buckled and is taken place to drop, gag lever post 11 also can block that oil pipe slope falls to ground, avoided subaerial staff to be taken place by the accident of oil pipe injure and death, so oil pipe anti-overturning device 10 can improve workover rig's security.

The above description is only exemplary of the present application and should not be taken as limiting, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. An oil pipe anti-toppling device, characterized in that, oil pipe anti-toppling device includes: the device comprises a limiting rod (11), a first telescopic rod (12), a second telescopic rod (13), a first supporting rod (14) and a second supporting rod (15);

one end of the first telescopic rod (12) is used for being connected with a first supporting point of a derrick, one end of the second supporting rod (15) is used for being connected with a second supporting point of the derrick, the other end of the first telescopic rod (12) is connected with the other end of the second telescopic rod (13) through the limiting rod (11), and the first supporting point and the second supporting point are at the same height of the derrick;

one end of the first supporting rod (14) is used for being connected with a third supporting point of the derrick, one end of the second supporting rod is used for being connected with a fourth supporting point of the derrick, the other end of the first supporting rod (14) is connected with the other end of the second supporting rod (15) through the limiting rod (11), and the third supporting point and the fourth supporting point are lower than the first supporting point at the same height on the derrick;

the first telescopic rod (12) and the second telescopic rod (13) are used for fixing the limiting rod (11) and changing the distance between the limiting rod (11) and the derrick, and the first support rod (14) and the second support rod (15) are used for supporting the limiting rod (11).

2. The oil pipe anti-toppling device of claim 1, wherein the first telescopic rod (12) comprises a first fixing rod (121), a first slide rod (122), a first slide rail (123) and a first sliding block (124);

the first sliding rail (123) is arranged in the first fixing rod (121), and the first sliding block (124) is arranged at one end of the first sliding rod (122);

the first sliding bar (122) moves relative to the first fixing bar (121) through the first slider (124) and the first sliding rail (123).

3. The oil pipe anti-toppling device of claim 2, wherein the first slide rail (123) is provided with a first rail notch; the first slider (124) comprises a first stop pin, a first bearing and a first lock cap;

the first gear pin is arranged at one end of the first sliding rod (122), the first bearing is arranged in the first rail notch, and the first gear pin penetrates through the axis of the first bearing and is connected with the first lock cap;

the first slide bar (122) moving relative to the first fixed bar (121) through the first bearing and the first track notch; the first stop pin is connected with the first lock cap and used for fixing the moving position of the first sliding rod (122).

4. The oil pipe anti-toppling device of claim 1, wherein the second telescopic rod (13) comprises a second fixed rod, a second sliding rail and a second sliding block;

the second slide rail is arranged in the second fixing rod, and the second slide block is arranged at one end of the second slide rod;

the second sliding rod moves relative to the second fixing rod through the second sliding block and the second sliding rail.

5. The oil pipe anti-toppling device of claim 4, wherein the second slide rail is provided with a second rail notch; the second sliding block comprises a second gear pin, a second bearing and a second locking cap;

the second gear pin is arranged at one end of the second sliding rod, the second bearing is arranged in the second rail notch, and the second gear pin penetrates through the axis of the second bearing and is connected with the second lock cap;

the second sliding bar moves relative to the second fixed bar through the second bearing and the second track notch; the second stop pin is connected with the second lock cap and used for fixing the moving position of the second sliding rod.

6. The oil pipe anti-toppling device of claim 1, further comprising a wire rope, a first fixed pulley, and a wire rope winch;

the first fixed pulley is arranged at the top end of the derrick, the wire rope winch is arranged at the bottom end of the derrick, and one end of the wire rope is connected with one end of the limiting rod (11) and is connected with the wire rope winch through the first fixed pulley;

the steel wire rope winch is used for controlling the length of the steel wire rope, the steel wire rope is used for changing the height of the limiting rod (11), and the first fixed pulley is used for reducing the friction resistance of the steel wire rope in the sliding process.

7. The oil pipe anti-toppling device of claim 6, wherein one end of the limiting rod (11) is provided with a first movable pulley;

one end of the steel wire rope is fixed at the top end of the derrick and is connected with the steel wire rope winch sequentially through the first movable pulley and the first fixed pulley.

8. The oil pipe anti-toppling device of claim 7, wherein the first movable pulley comprises a first hub, a first bearing, a lock nut and a protective cover;

one end of the first bearing is connected with one end of the limiting rod (11), the other end of the first bearing is connected with the locking nut, the first hub is arranged on the outer side of the first bearing, and the protective cover is arranged on the outer side of the first hub;

the first bearing is used for driving the first hub to rotate, the locking nut is used for fixing the first bearing, and the protective cover is used for preventing the steel wire rope from falling off from the first hub.

9. The oil pipe anti-toppling device of claim 6, wherein the first fixed pulley comprises a second hub, a second bearing and a support pin;

the supporting pin penetrates through the second bearing and is used for providing supporting force for the second bearing, and the second hub is arranged on the outer side of the second bearing;

the second bearing is used for driving the second hub to rotate, and the second hub is used for reducing the friction resistance of the steel wire rope in the sliding process.

10. A workover rig, comprising: -a derrick (20), a sling (30) and an oil pipe anti-tip device (10) according to any one of claims 1 to 9;

the oil pipe anti-dumping device (10) is arranged in the middle of the derrick (20); one end of the hoisting piece (30) is arranged at the top end of the derrick (20), and the other end of the hoisting piece (30) is used for being connected with an oil pipe;

the derrick (20) is used for improving the supporting force of the oil pipe anti-dumping device (10) and the hoisting piece (30), the hoisting piece (30) is used for installing the oil pipe, and the oil pipe anti-dumping device (10) is used for preventing the oil pipe from dumping when falling off.

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