Auxiliary device for oil field workover treatment

Abstract

The utility model provides an auxiliary device for oil field workover treatment, which relates to the field of oil field workover and comprises a lock rod and a buffer spring. A pressing plate is welded to the top end of the buffer spring, a pull rod is welded to the center of the lower side face of the pressing plate, a hook disc is rotatably connected to the bottom end of the pull rod, a hook body is welded to the lower side face of the hook disc, a supporting rod is welded to the right end of the hook body, and a clamping hook is rotatably connected to the outer side face of the supporting rod. A ring plate is arranged at the position, close to the right end, of the outer side face of the lock rod, a spring bolt is welded to the right side face of the ring plate of the lock rod, a return spring is welded to the left side face of the ring plate of the lock rod, a hook is welded to the left end of the return spring, and a pull ring is welded to the left end of the lock rod. Through the arrangement of the clamping hook, the supporting rod, the hook body and the spring bolt, closing and locking of the clamping hook and the hook body are firmer, and the problem that due to the fact that the gravity self-locking closing hanging mode of the hook body and the clamping hook in a traditional oil field well repair large hook is unstable, an arc-shaped hanging rod of a faucet is collided and unhooked in the shaking process is solved.

Description

Technical Field

[0001] The utility model belongs to the field of oilfield well repair, and more specifically, relates to an auxiliary device for oilfield well repair operation. Background Art

[0002] Oilfield workover is an engineering operation that involves drilling for oil and subsequent maintenance of the well. Its purpose is to restore the normal production of the well through maintenance and upkeep, ensuring that the well can be used smoothly. The hook and the hook body are hinged and flipped on the same vertical plane, so that the arc-shaped boom of the faucet can easily knock open the gravity-locking hook during the swinging process, causing the arc-shaped boom of the faucet to be separated from the hook body of the big hook. It can be seen that in the actual operating environment, the gravity-self-locking closed hanging structure of the arc-shaped boom of the faucet of the traditional big hook is extremely unstable, which can easily cause the faucet to be unhooked and damaged. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides an auxiliary device for oilfield well repair operations to solve the problem that the gravity self-locking closed hanging method of the hook body and the hook in the traditional oilfield well repair hook is unstable, resulting in the arc-shaped suspension rod of the faucet colliding and unhooking during shaking.

[0004] The utility model provides an auxiliary device for oilfield well repair operations, comprising a connecting frame; the top of the connecting frame is connected to a hanger by bolts, and the lower side of the connecting frame is welded with a hook rod shell; it also includes a locking rod and a buffer spring; the top of the buffer spring is welded with a pressure plate, the center position of the lower side of the pressure plate is welded with a pull rod, the bottom end of the pull rod is rotatably connected to a hook disk, the lower side of the hook disk is welded with a hook body, the right end of the hook body is welded with a support rod, the outer side of the support rod is rotatably connected with a hook, and the bottom end of the buffer spring is welded with a hook rod shell; a ring plate is provided on the outer side of the locking rod near the right end, a locking tongue is welded on the right side of the ring plate of the locking rod, a return spring is welded on the left side of the ring plate of the locking rod, the left end of the return spring is welded with the hook body, and a pull ring is welded on the left end of the locking rod.

[0005] In at least some embodiments, the hook rod shell is a hollow cylindrical structure. A cylindrical boss is provided at the center of the bottom side surface of the hook rod shell, and a through hole is provided at the center of the upper side surface of the cylindrical boss, which passes through the upper and lower parts. A rubber ring is bonded to the inner wall of the through hole of the boss inside the hook rod shell, and the pull rod is inserted into the inner side of the through hole of the boss of the hook rod shell.

[0006] In at least some embodiments, the hook body is a C-shaped structure, a circular through hole is provided on the left side of the top of the C-shaped structure of the hook body, a groove is provided on the inner wall of the circular through hole, a square through hole is provided on the right side of the top of the C-shaped structure of the hook body, the square through hole of the hook body is connected to the circular through hole on the left and right, the lock tongue is inserted into the square through hole of the hook body, the lock rod is inserted into the circular through hole of the hook body, and a convex plate is provided on the right side of the bottom end of the C-shaped structure of the hook body.

[0007] In at least some embodiments, the front side of the locking tongue is a sloped structure.

[0008] In at least some embodiments, the outer side surface of the locking rod is provided with two groups of symmetrically distributed protrusions, and the two groups of protrusions on the outer side surface of the locking rod are embedded in the grooves on the inner side wall of the circular through hole of the hook body.

[0009] In at least some embodiments, a circular through hole running through the left and right sides is provided near the bottom end of the left side of the hook, the support rod is rotatably connected to the circular through hole of the hook, and a square through hole running through the left and right sides is provided near the top end of the left side of the hook, and the lock tongue is inserted into the inner side of the hook.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. In the utility model, on the one hand, the hook forms a hinged structure on the right side of the hook body through the support rod, which allows the hook to flip back and forth and open in different vertical directions from the hook body. This ensures that the impact direction of the faucet hanging rod is perpendicular to the flipping direction of the hook, thus avoiding the situation where the faucet hanging rod shakes and hits the hook to flip and open. On the other hand, the locking tongue is inserted into the square through hole of the hook to lock the hook in a flip-limited position, thereby abandoning the gravity self-locking method of the hook in the traditional large hook. The locking and unlocking operations are convenient and quick, and the closed locking of the hook and the hook body is more secure. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the present utility model.

[0013] Figure 2 It is a side structural schematic diagram of the utility model.

[0014] Figure 3 It is a front view structural schematic diagram of the present utility model.

[0015] Figure 4 It is a schematic diagram of the structure of the utility model when viewed from the side.

[0016] Figure 5 It is a schematic diagram of the cutaway structure of the present utility model.

[0017] Figure 6 This utility model Figure 5 Schematic diagram of the enlarged structure of part A in the middle.

[0018] Figure 7 It is a schematic diagram of the cross-sectional structure of the utility model when viewed from above.

[0019] Figure 8 It is a rear cross-sectional structural schematic diagram of the utility model.

[0020] Figure numerals: 1. hook body; 2. support rod; 3. hook; 4. hook plate; 5. hook rod shell; 6. hanger; 7. pull ring; 8. locking rod; 9. connecting frame; 10. buffer spring; 11. pull rod; 12. pressure plate; 13. rubber ring; 14. lock tongue; 15. return spring. DETAILED DESCRIPTION

[0021] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0022] like Figures 1-8 As shown, the utility model provides an auxiliary device for oilfield well repair operations, including a connecting frame 9; the top of the connecting frame 9 is connected to the hanger 6 by bolts, and the lower side of the connecting frame 9 is welded with a hook rod shell 5; it also includes a locking rod 8 and a buffer spring 10; the top of the buffer spring 10 is welded with a pressure plate 12, and the center position of the lower side of the pressure plate 12 is welded with a pull rod 11, the bottom end of the pull rod 11 is rotatably connected to a hook disk 4, the lower side of the hook disk 4 is welded with a hook body 1, the right end of the hook body 1 is welded with a support rod 2, the outer side of the support rod 2 is rotatably connected with a hook 3, and the bottom end of the buffer spring 10 is welded with a hook rod shell 5; a ring plate is provided on the outer side of the locking rod 8 near the right end, a lock tongue 14 is welded on the right side of the ring plate of the locking rod 8, a return spring 15 is welded on the left side of the ring plate of the locking rod 8, the left end of the return spring 15 is welded with the hook body 1, and the left end of the locking rod 8 is welded with a pull ring 7.

[0023] In the disclosed embodiment, the hook rod shell 5 is a cylindrical structure with a hollow interior. A cylindrical boss is provided at the center position of the bottom side surface of the hook rod shell 5, and a through hole is provided at the center position of the upper side surface of the cylindrical boss, which passes through the upper and lower parts. A rubber ring 13 is bonded to the inner wall of the through hole of the boss inside the hook rod shell 5, and the pull rod 11 is inserted into the inner side of the through hole of the boss of the hook rod shell 5. The pull rod 11 drives the pressure plate 12 to slide vertically up and down along the through hole of the boss of the hook rod shell 5. The pressure plate 12 squeezes the buffer spring 10, so that the buffer spring 10 uses the elastic force to buffer the gravity impact when the hook body 1 is mounted on the faucet, thereby reducing the mounting impact force of the traveling carriage and the steel cable connected to the top of the large hook, and protecting the traveling carriage and the steel cable structure.

[0024] In the disclosed embodiment, the hook body 1 is a C-shaped structure, a circular through hole is provided at the left side of the top of the C-shaped structure of the hook body 1, a groove is provided on the inner wall of the circular through hole, a square through hole is provided at the right side of the top of the C-shaped structure of the hook body 1, the square through hole of the hook body 1 is connected to the circular through hole on the left and right sides, the lock tongue 14 is inserted into the square through hole of the hook body 1, the lock rod 8 is inserted into the circular through hole of the hook body 1, and a convex plate is provided on the right side of the bottom end of the C-shaped structure of the hook body 1. When the hook 3 is closed with the hook body 1, the convex plate of the hook body 1 is attached to the rear side of the hook 3, and the convex plate of the hook body 1 limits the backward flipping of the hook 3 to prevent the front side wall inside the square through hole of the hook 3 from squeezing the lock tongue 14 again, and prevents the hook 3 from flipping backward and disengaging from the C-shaped opening of the hook body 1.

[0025] In the embodiment of the present disclosure, the front side surface of the lock tongue 14 is a sloped structure. During the process of the hook 3 flipping backward, the position of the left edge of the rear side surface of the hook 3 pushes the sloped structure of the lock tongue 14, so that the lock tongue 14 pushes the lock rod 8 to overcome the elastic force of the return spring 15 and move to the left, so that the lock tongue 14 automatically avoids the backward flipping action of the hook 3 until the lock tongue 14 and the square through hole of the hook 3 are opposite to each other on the left and right. At this time, the lock tongue 14 penetrates into the square through hole of the hook 3 under the elastic action of the return spring 15 and automatically locks. The locking method is convenient and fast.

[0026] In the embodiment of the present disclosure, two groups of convex strips are provided on the outer side surface of the locking rod 8, which are symmetrically distributed on the left and right sides. The two groups of convex strips on the outer side surface of the locking rod 8 are embedded in the grooves on the inner wall of the circular through hole of the hook body 1, so that the locking rod 8 drives the locking tongue 14 to move in a stable and directional manner left and right under the action of the return spring 15, ensuring that the inclined structure of the front side surface of the locking tongue 14 is opposite to the rear side surface of the hook 3, so that the hook 3 can stably contact and squeeze the inclined structure of the locking tongue 14.

[0027] In the embodiment of the present disclosure, a circular through hole is provided on the left side of the hook 3 near the bottom end, and the support rod 2 is rotatably connected to the circular through hole of the hook 3, so that the hook 3 forms a hinged structure with the hook body 1 through the support rod 2, and the hook 3 flips back and forth in front of the outer side of the support rod 2, so that the hook 3 flips and closes and flips and opens the C-shaped opening of the hook body 1, and a square through hole is provided on the left side of the hook 3 near the top end, and the lock tongue 14 is inserted into the inner side of the hook 3, and the lock tongue 14 limits and locks the flipping position of the hook 3, so that the hook 3 and the hook body 1 form a closed ring structure, so that the faucet's suspension rod is locked on the hook 3 and the inner side of the hook body 1 to prevent the faucet's suspension rod from shaking and unhooking.

[0028] The specific usage and function of this embodiment are as follows:

[0029] When the utility model is used to lock and mount the faucet boom with a large hook in oilfield well repair, the faucet boom is sleeved on the inner side of the C-shaped structure of the hook body 1. At this time, the gravity of the faucet pulls the hook body 1 through the faucet boom, and the hook body 1 pulls the pull rod 11 connected to the hook plate 4 to rotate. The pull rod 11 pulls the pressure plate 12 downward along the convex column through hole of the hook rod shell 5, and the pressure plate 12 squeezes the buffer spring 10. The buffer spring 10 supports the pressure plate 12 through the elastic force, so that the buffer spring 10 buffers the gravity impact of the faucet. Then the hook 3 is manually rotated, and the hook 3 is flipped backward around the support rod 2 until the left edge of the rear side of the hook 3 contacts and pushes the inclined structure of the lock tongue 14. The lock tongue 14 pushes the ring plate of the lock rod 8 to overcome the elastic force of the return spring 15 and move along the hook The groove on the inner wall of the circular through hole of the body 1 moves to the left. When the square through hole of the hook 3 is opposite to the lock tongue 14 left and right, the elastic force of the return spring 15 pushes the ring plate of the locking rod 8, and the ring plate of the locking rod 8 pushes the lock tongue 14 to the right and deep into the square through hole of the hook 3, completing the locking work of the lock tongue 14 on the hook 3. If the faucet hanger needs to be removed from the hook body 1 and the hook 3, the pull ring 7 is manually pulled, and the pull ring 7 drives the lock tongue 14 welded to the right end of the ring plate of the locking rod 8 to move horizontally to the left, and the lock tongue 14 disengages from the square through hole of the hook 3. Then the hook 3 is manually rotated, and the hook 3 flips forward around the support rod 2. At this time, the hook 3 disengages from the C-shaped opening of the hook body 1, completing the unlocking and opening work of the hook body 1, and finally the faucet hanger can be taken out of the hook body 1.

[0030] All of the above components are installed, connected, or configured using common mechanical methods, such as welding, threaded connections, and screw connections. The specific structures, models, and coefficients of all components are proprietary technologies, and any method that can achieve the desired effect may be employed. The rubber ferrules 13 used are commonly available on the market and, upon purchase, require only connection according to the included instruction manual, so further description is omitted here.

[0031] The technical solution of the present invention is not limited to the scope of the embodiments of the present invention, and the technical contents not described in detail in the present invention are all well-known technologies.

Claims

1. An auxiliary device for oilfield well repair work, comprising a connecting frame (9); the top of the connecting frame (9) is connected to a hanger (6) by bolts, and a hook rod shell (5) is welded to the lower side of the connecting frame (9); characterized in that: It also includes a locking rod (8) and a buffer spring (10); a pressure plate (12) is welded to the top of the buffer spring (10), a pull rod (11) is welded to the center of the lower side of the pressure plate (12), the bottom end of the pull rod (11) is rotatably connected to a hook plate (4), the lower side of the hook plate (4) is welded to a hook body (1), the right end of the hook body (1) is welded to a support rod (2), the outer side of the support rod (2) is rotatably connected to a hook (3), and the bottom end of the buffer spring (10) is welded to a hook rod shell (5); a ring plate is provided on the outer side of the locking rod (8) near the right end, a lock tongue (14) is welded to the right side of the ring plate of the locking rod (8), a return spring (15) is welded to the left side of the ring plate of the locking rod (8), the left end of the return spring (15) is welded to the hook body (1), and a pull ring (7) is welded to the left end of the locking rod (8).

2. The auxiliary device for oilfield well repairing operation according to claim 1, characterized in that: The hook rod shell (5) is a hollow cylindrical structure. A cylindrical boss is provided at the center of the bottom side surface of the hook rod shell (5). A through hole is provided at the center of the upper side surface of the cylindrical boss. A rubber ring (13) is bonded to the inner wall of the through hole of the boss inside the hook rod shell (5). The pull rod (11) is inserted into the inner side of the through hole of the boss of the hook rod shell (5).

3. The auxiliary device for oilfield well repairing operation according to claim 1, characterized in that: The hook body (1) is a C-shaped structure. A circular through hole is provided on the left side of the top of the C-shaped structure of the hook body (1). A groove is provided on the inner wall of the circular through hole. A square through hole is provided on the right side of the top of the C-shaped structure of the hook body (1). The square through hole of the hook body (1) is connected to the circular through hole on the left and right sides. The lock tongue (14) is inserted into the square through hole of the hook body (1). The lock rod (8) is inserted into the circular through hole of the hook body (1). A convex plate is provided on the right side of the bottom of the C-shaped structure of the hook body (1).

4. The auxiliary device for oilfield well repairing operation according to claim 1, characterized in that: The front side surface of the locking tongue (14) is a sloped structure.

5. The auxiliary device for oilfield well repairing operation according to claim 1, characterized in that: The outer side surface of the locking rod (8) is provided with two groups of symmetrically distributed protrusions, and the two groups of protrusions on the outer side surface of the locking rod (8) are embedded in the grooves on the inner side wall of the circular through hole of the hook body (1).

6. The auxiliary device for oilfield well repairing operation according to claim 1, characterized in that: A circular through hole extending leftward and rightward is provided on the left side of the hook (3) near the bottom end, the support rod (2) is rotatably connected in the circular through hole of the hook (3), a square through hole extending leftward and rightward is provided on the left side of the hook (3) near the top end, and the lock tongue (14) is inserted into the inner side of the hook (3).

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