Self-locking U-shaped slip half packer

Abstract

The utility model relates to petroleum drilling equipment technical field, concretely discloses a kind of self-locking U-shaped slip half-sealing gate plate, including slip body, the outer surface of the slip body is equipped with two groups of connecting holes, the inner side wall of one group of connecting holes is equipped with rotating rod, the outer surface of rotating rod is rotatably connected with first connecting block, the outer surface of one group of connecting holes is equipped with fixed mechanism, the outer surface of fixed mechanism is equipped with second connecting block, the outer surface of first connecting block is embedded with first bearing, the inner ring of first bearing is fixedly connected with threaded rod, by the thread cooperation of threaded rod and second connecting block, the position of first connecting block and second connecting block can be accurately adjusted, so that the holding force of slip body to oil pipe can be adjusted, by the self-locking structure of ratchet, limit rod and first elastic piece, threaded rod can be effectively prevented reverse rotation, avoid loosening due to vibration and other factors, ensure that slip is long-term stable fixation to oil pipe, eliminate the hidden danger of slipping.

Description

Technical Field

[0001] This utility model relates to the field of oil drilling equipment technology, and specifically discloses a self-locking U-shaped slip semi-sealing gate. Background Technology

[0002] In the fields of oil and gas drilling, well workover operations, and related pipeline transportation, slips are a key holding device widely used to temporarily or temporarily fix tubular workpieces such as tubing and drill pipes to ensure the stability of the tubular workpieces during operations and prevent them from axial displacement or falling off due to their own weight, internal pressure, or external operating forces. They are an important component for ensuring operational safety and efficiency.

[0003] Currently, bolts and nuts are commonly used to fix the two ends of the slip together. However, during long-term use, the bolts and nuts are prone to loosening due to factors such as vibration and pressure changes, which reduces the fixing effect of the slip on the oil pipe and poses a safety hazard of oil pipe slippage. To address this issue, we propose a self-locking U-shaped slip semi-sealing gate to solve the above problems. Utility Model Content

[0004] This utility model proposes a self-locking U-shaped slip semi-sealing gate. The self-locking structure, composed of a ratchet, a limiting rod, and a first elastic element, can effectively prevent the threaded rod from rotating in the opposite direction, avoid loosening due to vibration and other factors, and ensure the long-term stable fixation of the slip to the oil pipe. It solves the problem that during long-term use, the bolts and nuts are prone to loosening due to vibration, pressure changes, and other factors, which leads to a decrease in the fixing effect of the slip on the oil pipe and poses a safety hazard of oil pipe slippage.

[0005] This utility model is implemented as follows: a self-locking U-shaped locking semi-sealing gate includes a locking body. The outer surface of the locking body has two sets of connecting holes. The inner wall of one set of connecting holes is provided with a rotating rod. The outer surface of the rotating rod is rotatably connected to a first connecting block. The outer surface of the other set of connecting holes is provided with a fixing mechanism. The outer surface of the fixing mechanism is provided with a second connecting block. The outer surface of the first connecting block is inlaid with a first bearing. The inner ring of the first bearing is fixedly connected with a threaded rod. The threaded rod is threadedly connected to the second connecting block. The right side of the threaded rod is fixedly connected with a ratchet. The right side of the first connecting block is fixedly connected with a sliding frame. The inner wall of the sliding frame is slidably connected with a limit rod. The outer surface of the limit rod and the outer surface of the first connecting block are jointly fixedly connected with a first elastic element.

[0006] As a preferred embodiment of the self-locking U-shaped slip semi-sealing gate of this utility model, the fixing mechanism includes a plug rod, which is rotatably connected to the second connecting block, and a cover is slidably connected to the outer surface of the plug rod.

[0007] As a preferred embodiment of the self-locking U-shaped slip semi-sealing gate of this utility model, the outer surface of the insertion rod is provided with multiple sliding holes, and the inner wall of each sliding hole is fixedly connected with a second elastic element.

[0008] As a preferred embodiment of the self-locking U-shaped slip semi-sealing gate of this utility model, each of the sliding holes has a sliding stop block slidably connected to its inner wall, and the outer surface of each sliding stop block is fixedly connected to the outer surface of each second elastic element.

[0009] As a preferred embodiment of the self-locking U-shaped slip semi-sealing gate of this utility model, the outer surface of the ratchet is fixedly connected with a reinforcing rib, and the outer surface of the limiting rod is fixedly connected with a pushing column.

[0010] As a preferred embodiment of the self-locking U-shaped slip semi-sealing gate of this utility model, a limiting light rod is fixedly connected to the outer surface of the first connecting block, the limiting light rod is slidably connected to the second connecting block, and a knob is fixedly connected to the outer surface of the threaded rod.

[0011] The beneficial effects of this utility model are:

[0012] This self-locking U-shaped slip semi-sealing gate, through the threaded engagement of the threaded rod and the second connecting block, can precisely adjust the position of the first and second connecting blocks, thereby adjusting the clamping force of the slip body on the oil pipe. The self-locking structure composed of a ratchet, a limit rod, and a first elastic element can effectively prevent the threaded rod from rotating in the opposite direction, avoid loosening caused by vibration and other factors, ensure the long-term stable fixation of the slip on the oil pipe, and eliminate the risk of slippage. Attached Figure Description

[0013] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0014] Figure 1 This is a front view structural diagram of a self-locking U-shaped slip semi-sealing gate of this utility model;

[0015] Figure 2 This is a side sectional view of a self-locking U-shaped slip semi-sealing gate according to the present invention;

[0016] Figure 3 This is a side sectional view of the insert rod in a self-locking U-shaped slip semi-sealed gate according to the present invention.

[0017] Figure 4 This is a top view of the self-locking U-shaped slip semi-sealing gate of this utility model.

[0018] The markings in the diagram are as follows: 1. Valves body; 2. Connecting hole; 3. Rotating rod; 4. First connecting block; 5. Fixing mechanism; 501. Insert rod; 502. Cover; 503. Sliding hole; 504. Sliding stop; 505. Second elastic element; 6. Second connecting block; 7. First bearing; 8. Threaded rod; 9. Ratchet; 10. Sliding frame; 11. Limiting rod; 12. First elastic element; 13. Reinforcing rib; 14. Push column; 15. Knob; 16. Limiting rod. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model. Unless otherwise specified, the methods used in the present utility model are conventional methods; unless otherwise specified, the raw materials and apparatus used are conventional commercially available products.

[0020] Please see Figure 1-4 A self-locking U-shaped locking semi-sealing gate includes a locking body 1. The outer surface of the locking body 1 has two sets of connecting holes 2. The inner side wall of one set of connecting holes 2 is provided with a rotating rod 3. The outer surface of the rotating rod 3 is rotatably connected to a first connecting block 4. The outer surface of the other set of connecting holes 2 is provided with a fixing mechanism 5. The outer surface of the fixing mechanism 5 is provided with a second connecting block 6. The outer surface of the first connecting block 4 is inlaid with a first bearing 7. The inner ring of the first bearing 7 is fixedly connected to a threaded rod 8. The threaded rod 8 is threadedly connected to the second connecting block 6. The right side of the threaded rod 8 is fixedly connected to a ratchet 9. The right side of the first connecting block 4 is fixedly connected to a sliding frame 10. The inner side wall of the sliding frame 10 is slidably connected to a limit rod 11. The outer surface of the limit rod 11 and the outer surface of the first connecting block 4 are jointly fixedly connected to a first elastic element 12.

[0021] In this embodiment: by rotating the threaded rod 8, the distance between the first connecting block 4 and the second connecting block 6 can be adjusted, so that the slip body 1 can hold the oil pipe tightly. The first elastic element 12 pushes the limiting rod 11, so that the limiting rod 11 is inserted into the ratchet 9. The ratchet 9 is connected to the threaded rod 8. When the threaded rod 8 rotates in the opposite direction, it will be blocked by the limiting rod 11, forming a self-locking structure to prevent the slip body 1 from loosening due to the rotation of the threaded rod 8.

[0022] As a technical optimization of this utility model, the fixing mechanism 5 includes a plug rod 501, which is rotatably connected to the second connecting block 6. A cover 502 is slidably connected to the outer surface of the plug rod 501. A plurality of sliding holes 503 are opened on the outer surface of the plug rod 501. A second elastic element 505 is fixedly connected to the inner wall of each sliding hole 503. A sliding block 504 is slidably connected to the inner wall of each sliding hole 503. The outer surface of each sliding block 504 is fixedly connected to the outer surface of each second elastic element 505.

[0023] In this embodiment: after the insertion rod 501 is inserted into the connection hole 2, the sliding block 504 pops out from the sliding hole 503 under the elastic force of the second elastic element 505, and restricts the cover 502 on the insertion rod 501 to prevent the insertion rod 501 from falling off.

[0024] As a technical optimization of this utility model, the outer surface of the ratchet 9 is fixedly connected with a reinforcing rib 13, the outer surface of the limiting rod 11 is fixedly connected with a pushing column 14, the outer surface of the first connecting block 4 is fixedly connected with a limiting light rod 16, the limiting light rod 16 is slidably connected to the second connecting block 6, and the outer surface of the threaded rod 8 is fixedly connected with a knob 15.

[0025] In this embodiment, the stability of the structure can be enhanced by setting a reinforcing rib 13 on the outer surface of the ratchet 9, and the limiting rod 16 can move synchronously with the threaded rod 8 to ensure that the structure is stable and does not deviate during the adjustment process.

[0026] The working principle and usage process of this utility model are as follows: When in use, pull out the insert rod 501, separate the slip body 1 from the second connecting block 6, place the slip body 1 around the pipe, align the second connecting block 6 with the connecting hole 2, insert the insert rod 501 into the connecting hole 2, and put the cover 502 on the insert rod 501 so that the sliding block 504 blocks the cover 502 to prevent the cover 502 from falling off. Rotate the threaded rod 8 to make the second connecting block 6 move closer to the first connecting block 4, so that the slip body 1 hugs the pipe tightly. When the threaded rod 8 rotates in the reverse direction, the ratchet 9 rotates synchronously with the threaded rod 8. At this time, the limiting rod 11 is locked into the tooth groove of the ratchet 9 under the elastic force of the first elastic element 12, preventing the ratchet 9 from rotating counterclockwise and locking the threaded rod 8. Move the push column 14 to move the limiting rod 11 away from the ratchet 9, which can release the self-locking of the threaded rod 8.

[0027] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0028] However, the above description is merely a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model. For those skilled in the art, it is obvious that this utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model.

Claims

1. A self-locking U-shaped slip semi-sealing gate, characterized in that: The device includes a slip body (1), the outer surface of which has two sets of connecting holes (2). One set of connecting holes (2) has a rotating rod (3) on its inner sidewall. The outer surface of the rotating rod (3) is rotatably connected to a first connecting block (4). The outer surface of one set of connecting holes (2) has a fixing mechanism (5). The outer surface of the fixing mechanism (5) has a second connecting block (6). The outer surface of the first connecting block (4) is inlaid with a first bearing (7). The inner ring of the first bearing (7) is fixedly connected to a threaded rod (8). The threaded rod (8) is threadedly connected to the second connecting block (6). The right side of the threaded rod (8) is fixedly connected to a ratchet (9). The right side of the first connecting block (4) is fixedly connected to a sliding frame (10). The inner sidewall of the sliding frame (10) is slidably connected to a limit rod (11). The outer surface of the limit rod (11) and the outer surface of the first connecting block (4) are jointly fixedly connected to a first elastic element (12).

2. The self-locking U-shaped slip semi-sealing gate according to claim 1, characterized in that: The fixing mechanism (5) includes a plug rod (501), which is rotatably connected to the second connecting block (6), and a cover (502) is slidably connected to the outer surface of the plug rod (501).

3. The self-locking U-shaped slip semi-sealing gate according to claim 2, characterized in that: The outer surface of the insertion rod (501) is provided with a plurality of sliding holes (503), and a second elastic element (505) is fixedly connected to the inner wall of each sliding hole (503).

4. The self-locking U-shaped slip semi-sealing gate according to claim 3, characterized in that: Each of the sliding holes (503) has a sliding stop (504) slidably connected to its inner wall, and the outer surface of each sliding stop (504) is fixedly connected to the outer surface of each second elastic member (505).

5. The self-locking U-shaped slip semi-sealing gate according to claim 1, characterized in that: The outer surface of the ratchet (9) is fixedly connected with a reinforcing rib (13), and the outer surface of the limiting rod (11) is fixedly connected with a pushing column (14).

6. The self-locking U-shaped slip semi-sealing gate according to claim 1, characterized in that: A limiting light rod (16) is fixedly connected to the outer surface of the first connecting block (4), the limiting light rod (16) is slidably connected to the second connecting block (6), and a knob (15) is fixedly connected to the outer surface of the threaded rod (8).

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