Buckling device

Abstract

The utility model relates to the technical field of petroleum machinery, in particular to a buckling device, which comprises a support, an upper buckling clamp and a lower buckling clamp. The clamping cylinder assembly is of a split structure and is used for clamping and connecting two sections of oil pipes; the transmission assembly and the connecting support are connected with the clamping cylinder assembly and used for controlling opening and closing movement of the clamping cylinder assembly. Due to the fact that the upper buckling clamp is installed in a hanging mode, the buckling device is installed on the lower portion of the upper buckling clamp, and the position of the buckling device can be adjusted in a larger range through hanging installation. According to the anti-splashing buckling device, the clamping cylinder assembly of a split structure is adopted and matched with the detachable lining, so that the buckling device can adapt to pipe columns with different diameters, the tedious process that a sleeve needs to be replaced for a traditional buckling device is avoided, the installation efficiency is improved, and meanwhile the operation cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of petroleum machinery, in particular to a buckle device. Background Art

[0002] In oil production operations, a clamp is needed to clamp two pipe strings. After the two pipe strings are aligned, the two pipe strings are rotated and installed, or rotated and disassembled using hydraulic pliers.

[0003] The pipe string is connected in multiple sections in the oil well. The blowout preventer is at the wellhead, mainly to prevent blowouts. The pipe string passes through the blowout preventer and is connected or removed at the top. The entire control system includes a buckle to connect the pipe string concentrically, and an upper buckle clamp to rotate and lock the pipe string, thereby realizing the connection of the pipe string.

[0004] At present, the fastening device, such as the wellhead splash-proof fastening device of Patent 202221259521.5, needs to replace the sleeve when facing pipes of different diameters. The sleeve installation is complicated and the installation efficiency is low. During the fastening process, the sleeves on both sides move linearly toward the middle to fasten. The position of the fastened pipe has a large error, and the fastening structure cannot adapt to this situation well, resulting in inaccurate fastening and low fastening success rate. Utility Model Content

[0005] The utility model provides a buckle device, which aims to clamp a pipe column to achieve buckle.

[0006] To achieve the above purpose, the technical solution of the utility model is:

[0007] The utility model provides a buckle device, comprising: a bracket, which is arranged at the lower part of an upper buckle clamp, and the upper buckle clamp is suspended and installed on the bracket;

[0008] The clamp assembly is arranged in a split structure and is used to clamp and connect two sections of oil pipes;

[0009] The transmission assembly is connected with the connecting bracket and the clamping barrel assembly and is used to control the opening and closing movement of the clamping barrel assembly.

[0010] Further, the cartridge assembly includes a housing, a bushing and a splash guard;

[0011] The bushing is arranged inside the shell and is a detachable structure, and is used to clamp pipe columns of different specifications;

[0012] The splash shield is arranged on the upper part of the shell to prevent the liquid in the pipe column from splashing outwards during installation.

[0013] Furthermore, the bushings are arranged in three groups from top to bottom inside the shell, including an upper bushing, a middle bushing and a lower bushing.

[0014] Furthermore, the upper bushing is half funnel-shaped, with a groove on the edge and a connecting hole on the lower edge of the groove; an upper connecting plate that can be inserted into the groove is fixedly arranged inside the outer shell, and an opening concentric with the connecting hole is arranged on the connecting plate; a positioning pin is arranged at the lower part of the opening, and the positioning pin is inserted into the opening and the connecting hole to clamp the upper bushing.

[0015] Furthermore, the middle bushing and the lower bushing have the same structure, which are arc-shaped pieces with half holes at both ends of the outer edge and a through hole in the middle; an arc-shaped middle connecting piece and a lower connecting piece are fixedly provided inside the outer shell, and bolts matching the half holes are provided at both ends of the middle connecting piece, and a positioning pin matching the through hole is provided in the middle of the middle connecting piece, and the positioning pin is inserted into the through hole to clamp the middle connecting piece.

[0016] Furthermore, the outer side surface of the shell is provided with an edge.

[0017] Furthermore, the upper portion of the housing is semi-funnel-shaped, which facilitates alignment of the center lines of the two pipe columns during installation.

[0018] Furthermore, the transmission assembly is configured as a connecting rod mechanism, and the movement of the connecting rod mechanism is controlled by a cylinder, thereby controlling the opening and closing of the clamp assembly to clamp the pipe column.

[0019] Furthermore, the connecting rod mechanism includes an active rod, a driven rod and a connecting rod. One end of the active rod and the driven rod is rotatably connected to the bracket. A cylinder is provided on one side of the active rod. The cylinder pushes the active rod to rotate within a certain angle. The other end of the active rod and the driven rod is rotatably connected to the connecting rod. A clamping cylinder assembly is provided on the connecting rod.

[0020] The beneficial effects achieved by the utility model are:

[0021] The utility model discloses a fastener. The splash-proof fastener adopts a split-type clamping sleeve assembly and a detachable bushing, so that the fastener can adapt to pipes of different diameters. This avoids the cumbersome process of replacing the sleeve of the traditional fastener, improves the installation efficiency, and also reduces the operating cost.

[0022] The utility model discloses a fastener, in which the upper clamp is suspended and installed, and the suspension structure of the upper clamp has a large floating adaptability to the working position. The innovative installation method of the fastener of this solution attached to the upper clamp can make use of the floating adaptive structure of the upper clamp, avoiding the need to reconfigure an independent floating adaptive structure. The suspension installation can adjust the position of the fastener over a wider range, and the design of the barrel assembly enables more precise centering of the tubing during the fastening process, reducing the concentricity error between the fastening center line and the wellhead tubing. Compared with similar products without a floating adaptive structure, the range of its adaptive work is significantly increased, and the success rate of its work is higher.

[0023] The utility model discloses a buckle device, and the arrangement of the splash-proof baffle effectively prevents the liquid in the pipe column from splashing outwards during the installation process, thereby protecting the safety of the operators and maintaining the cleanliness of the working environment.

[0024] The utility model provides a buckle device, in which the connecting rod mechanism of the transmission component is a four-bar mechanism, the motion curve of the connecting rod is smoother and the structure is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0026] Figure 1 It is a schematic diagram of the overall structure of a buckle device;

[0027] Figure 2 An exploded view of a buckle device;

[0028] Figure 3 It is a schematic diagram of the lower structure of a buckle device installed on a lower buckle clamp;

[0029] Figure 4 A diagram showing a buckle before an upper pipe column is installed on a lower pipe column;

[0030] Figure 5 A diagram showing a buckle after an upper pipe column is installed on a lower pipe column;

[0031] In the figure, 1, bracket; 2, clamp assembly; 21, shell; 211, upper connecting plate; 2111, opening; 212, middle connecting plate; 213, lower connecting plate; 22, bushing; 221, upper bushing; 2211, groove; 222, middle bushing; 2221, half hole; 2222, through hole; 223, lower bushing; 23, splash guard; 3, transmission assembly; 31, active rod; 32, driven rod; 33, connecting rod; 4, upper clamp; 5, upper pipe column; 6, lower pipe column.

[0032] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0035] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0036] like Figures 1 to 5 As shown, the utility model provides a buckle device, including: a bracket 1, which is arranged at the lower part of an upper buckle clamp 4, and the upper buckle clamp 4 is suspended and installed on the frame body; the upper buckle clamp 4 is suspended and installed on the frame body, and serves as an operating tool of the buckle device, and two pipe columns are rotated and installed or removed through hydraulic clamps. Its suspension installation method enables the buckle device to adjust its position in a wider range and adapt to different wellhead heights and working environments.

[0037] The bracket 1 provides a stable connection between the fastener and the upper clamp 4, ensuring that the fastener can flexibly adjust its position along with the upper clamp 4 during operation, thereby expanding the application scope of the fastener and facilitating accurate centering of pipes at different positions.

[0038] The clamp assembly 2 is set as a split structure, which is used to clamp and connect two sections of oil pipes; it is designed as two separable parts, which is convenient for clamping the pipe column from both sides at the same time, and realizing fast and convenient buckling operation. The platform where the buckler is located is raised and lowered by rotating the bracket. After the buckler holds the oil pipe for connection, the upper buckle clamp is a locking device, and the oil pipe connection end is provided with a thread, and the rotating mechanism of the upper buckle clamp rotates and locks the oil pipe.

[0039] The transmission assembly 3 is connected to the support bracket 1 and the clamping assembly 2 and is used to control the opening and closing movement of the clamping assembly 2.

[0040] The cartridge assembly 2 includes a housing 21, a bushing 22 and a splash shield 23;

[0041] The bushing 22 is arranged inside the shell 21 and is a detachable structure for clamping pipes of different specifications. Bushings 22 of different specifications can be replaced according to the diameter of the pipe to adapt to pipes of different diameters without replacing the sleeve as a whole, which significantly improves installation efficiency and reduces costs.

[0042] The splash shield 23 is arranged on the upper part of the housing 21 to prevent the liquid in the pipe column from splashing outward during installation. It can prevent the internal liquid from splashing during the pipe column docking process, protect the safety of operators, and keep the working environment clean.

[0043] The bushings 22 are arranged in three groups from top to bottom inside the housing 21. The lower two groups are used to clamp the lower pipe column 6, and the upper group is used to clamp the upper pipe column 5, ensuring that the pipe column can remain stable during the buckling and installation process.

[0044] The upper bushing 221 is half funnel-shaped, with a groove 2211 on its edge, and a connecting hole on the lower edge of the groove 2211; an upper connecting piece 211 that can be inserted into the groove 2211 is fixedly provided inside the outer shell 21, and an opening 2111 concentric with the connecting hole is provided on the connecting piece; a positioning pin is provided at the lower part of the opening 2111, and the positioning pin is inserted into the opening 2111 and the connecting hole to clamp the upper bushing 221.

[0045] The middle bushing 222 and the lower bushing 223 have the same structure, which are arc-shaped pieces, with half holes 2221 set at both ends of the outer edge and a through hole 2222 set in the middle; the inside of the outer shell 21 is fixedly provided with an arc-shaped middle connecting piece 212 and a lower connecting piece 213, and the middle connecting piece 212 and the lower connecting piece 213 have the same structure; both ends of the middle connecting piece 212 are provided with bolts matching with the half holes 2221, and the middle of the middle connecting piece 212 is provided with a positioning pin matching with the through hole 2222, and the positioning pin is inserted into the through hole 2222 to clamp the middle connecting piece 212.

[0046] The outer side of the housing 21 is provided with edges. In this solution, after the buckle is engaged, the housing 21 is in the shape of a hexagonal prism, and the edges also help the operator to better hold and operate the buckle, thereby improving the convenience and safety of the operation.

[0047] The upper part of the housing 21 is semi-funnel-shaped. After the two housings 21 are joined, the upper part is funnel-shaped, which makes it easy to align the center lines of the two pipes during installation. When the two pipes are docked, the funnel-shaped structure can guide the pipes to enter the clamp assembly 2 smoothly, making it easier to align the center line of the pipe with the center line of the buckle. This not only improves the accuracy and efficiency of installation, but also reduces the risk of installation failure or damage due to misaligned center lines.

[0048] The transmission assembly 3 is configured as a connecting rod mechanism, and the movement of the connecting rod mechanism is controlled by a cylinder, thereby controlling the opening and closing of the chuck assembly 2 to clamp the pipe column. The connecting rod mechanism includes an active rod 31, a driven rod 32 and a connecting rod 33. One end of the active rod 31 and the driven rod 32 are rotatably connected to the bracket 1. A cylinder is provided on one side of the active rod 31, and the cylinder pushes the active rod 31 to rotate within a certain angle. The other end of the active rod 31 and the driven rod 32 is rotatably connected to the connecting rod 33, and the connecting rod 33 is provided with a chuck assembly 2. A four-bar mechanism design is adopted, and the movement of the connecting rod is controlled by the cylinder, thereby driving the opening and closing of the chuck assembly 2 to achieve the clamping and release of the pipe column. The connecting rod mechanism has a smooth motion curve and a stable structure, which ensures a smooth and reliable buckling process.

[0049] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A buckle clamp, wherein the upper buckle clamp (4) is suspended and mounted on a frame. It is characterized in that include: A bracket (1) is arranged at the lower part of the upper clamp (4); The clamp assembly (2) is configured as a split structure and is used to clamp and connect two sections of oil pipes; The cartridge assembly (2) comprises a housing (21), a bushing (22) and a splash guard (23); The bushing (22) is arranged inside the housing (21) and is a detachable structure used to clamp pipe columns of different specifications; The splash shield (23) is arranged on the upper part of the housing (21) and is used to prevent the liquid in the pipe column from splashing outward during installation; The transmission assembly (3) is connected to the connecting bracket (1) and the clamping barrel assembly (2) and is used to control the opening and closing movement of the clamping barrel assembly (2).

2. A buckle according to claim 1, Features: The bushings (22) are arranged in three groups from top to bottom inside the housing (21), including an upper bushing (221), a middle bushing (222) and a lower bushing (223).

3. A buckle device according to claim 2, Features: The upper bushing (221) is half funnel-shaped, with a groove (2211) provided on its edge, and a connecting hole provided on the lower edge of the groove (2211); an upper connecting piece (211) capable of being inserted into the groove (2211) is fixedly provided inside the housing (21), and an opening (2111) concentric with the connecting hole is provided on the connecting piece; a positioning pin is provided below the opening (2111), and the positioning pin is inserted into the opening (2111) and the connecting hole to lock the upper bushing (221).

4. A buckle device according to claim 2, Features: The middle bushing (222) and the lower bushing (223) have the same structure and are arc-shaped sheets, with half holes (2221) provided at both ends of the outer edge and a through hole (2222) provided in the middle; an arc-shaped middle connecting sheet (212) and a lower connecting sheet (213) are fixedly provided inside the housing (21), bolts matching the half holes (2221) are provided at both ends of the middle connecting sheet (212), a positioning pin matching the through hole (2222) is provided in the middle of the middle connecting sheet (212), and the positioning pin is inserted into the through hole (2222) to clamp the middle connecting sheet (212).

5. The buckle device according to claim 1, Features: The outer side surface of the housing (21) is provided with an edge.

6. A buckle device according to claim 1, Features: The upper part of the housing (21) is semi-funnel-shaped, which facilitates the alignment of the center lines of the two pipe columns during installation.

7. The buckle device according to claim 1, Features: The transmission assembly (3) is configured as a connecting rod mechanism, and the movement of the connecting rod mechanism is controlled by a cylinder, thereby controlling the opening and closing of the clamp assembly (2) to clamp the pipe column.

8. A buckle device according to claim 7, Features: The connecting rod mechanism comprises an active rod (31), a driven rod (32) and a connecting rod (33); one end of the active rod (31) and the driven rod (32) are rotatably connected to the bracket (1); a cylinder is provided on one side of the active rod (31); the cylinder pushes the active rod (31) to rotate within a certain angle; the other ends of the active rod (31) and the driven rod (32) are rotatably connected to the connecting rod (33); and a clamping barrel assembly (2) is provided on the connecting rod (33).

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