A fracturing manifold and rapid positioning device

Abstract

The utility model discloses a fracturing manifold and fast positioning device, including male head and female head, the outer port of male head adopts conical structure, and the inside of female head adopts the horn mouth shape structure of cooperation with male head guide conical surface, the radial sliding connection of wedge block has on the outer port inner wall of female head, and the outer port of locking ring is equipped with the extrusion strip of width gradual change, and this extrusion strip is used for extruding wedge block to the convergence of axial line place. The utility model discloses through the conical structure of male head and the horn mouth structure of female head cooperation, realizes blind insertion guide centering, has reduced the alignment accuracy requirement, has improved initial butt joint speed significantly, and simultaneously adopts the mode of rotating locking ring drive wedge block radial locking, and operating personnel only need to rotate locking ring small angle usually less than a circle to complete firm connection, need not complex tool, and one person can complete efficiently, has improved the connection efficiency greatly.

Description

Technical Field

[0001] This utility model relates to the field of pipeline connection system technology, and in particular to a fracturing manifold and a rapid positioning device. Background Technology

[0002] In fracturing operations in the oil and gas industries, high-pressure manifold systems are key equipment for transporting fracturing fluid. The reliability of the connections between pipelines and between pipelines and valves directly affects operational safety and efficiency. Currently, union or flange connections are commonly used on-site.

[0003] While traditional threaded unions have a simple structure, the threading process is cumbersome and time-consuming, requiring operators to rotate them multiple times to complete. Furthermore, they are prone to loosening under high pressure and vibration conditions, posing a safety hazard. Flange connections, on the other hand, require aligning multiple bolt holes and tightening the bolts one by one, making the operation even more time-consuming and labor-intensive. Moreover, both threaded and flange connections require precise axial alignment during connection, which is difficult in harsh outdoor environments or low visibility conditions, further impacting operational efficiency.

[0004] To address these issues, we propose a fracturing manifold and a rapid positioning device. Utility Model Content

[0005] The purpose of this invention is to provide a fracturing manifold and a rapid positioning device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A rapid positioning device includes a male head and a female head. The outer port of the male head has a conical structure, and the interior of the female head has a flared opening that matches the guide cone surface of the male head. A wedge block is slidably connected to the inner wall of the outer port of the female head along the radial direction. A locking ring is rotatably sleeved on the outer side of the female head, and a gradually changing extrusion strip is provided along the inner edge of the outer port of the locking ring. The extrusion strip is used to extrude the wedge block toward the axis.

[0008] In a further embodiment, two first sealing rings are sequentially embedded on the conical sealing surfaces of the male and female heads, and a second sealing ring is embedded on the horizontal sealing surfaces of the male and female heads.

[0009] In a further embodiment, several wedge-shaped blocks are evenly distributed at equal intervals along the circumference of the mother head, and the extrusion strip corresponds one-to-one with the wedge-shaped blocks.

[0010] In a further embodiment, the male end face is provided with circumferentially evenly spaced inclined grooves corresponding to the number of wedge blocks.

[0011] In a further embodiment, the outer wall of the locking ring is provided with a plurality of protruding bumps.

[0012] In a further embodiment, a ring of ratchet teeth is provided on the outer wall of the female head, and a guide rod is mounted on one of the protrusions via a bracket. The guide rod slides through the interior of the bracket, and a stop block is fixed at one end of the guide rod near the ratchet teeth. A spring is also installed between the stop block and the bracket. A handle bar is rotatably mounted at the other end of the guide rod, and a protrusion supporting the handle bar is fixed on the outer wall of the bracket.

[0013] A fracturing manifold includes a rapid positioning device as described above, and also includes a fracturing tube body, wherein the male and female heads of the rapid positioning device are respectively fixed to both ends of the fracturing tube body.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention achieves blind insertion and alignment by using the conical structure of the male head and the flared structure of the female head to cooperate with each other, reducing the alignment accuracy requirements and significantly improving the initial docking speed. At the same time, it adopts a method of radial locking by driving the wedge block with a rotating locking ring. The operator only needs to rotate the locking ring at a small angle, usually less than one turn, to complete a firm connection. No complicated tools are required, and a single person can complete the work efficiently, which greatly improves the connection efficiency. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the rapid positioning device of this utility model.

[0017] Figure 2 This is a schematic diagram of the assembly cross-sectional structure of the rapid positioning device of this utility model;

[0018] Figure 3 This is a bottom view of the structure of the present invention when the locking ring and the wedge block are pressed together;

[0019] Figure 4 This is a schematic diagram of the external structure of the female head of this utility model;

[0020] Figure 5 This is a schematic diagram of the fracturing pipeline structure of this utility model.

[0021] In the diagram: 1. Male head; 2. Female head; 21. Trumpet mouth; 3. Wedge block; 4. Locking ring; 41. Protrusion; 5. Extrusion strip; 6. Ratchet; 7. Stop block; 8. Bracket; 81. Protrusion rod; 9. Guide rod; 10. Spring; 11. Inclined groove; 12. First sealing ring; 13. Second sealing ring; 14. Handle strip; 15. Fracturing tube body. Detailed Implementation

[0022] 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 the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] 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 protection scope of the present utility model.

[0025] Please see Figure 1-5 A quick positioning device mainly consists of a male head 1 and a female head 2. The male head 1 and the female head 2 are usually forged from high-strength alloy steel. The outer wall of the head end of the male head 1 is machined into a conical structure, and multiple inclined grooves 11 are evenly opened on the outer wall of its tail end in a circumferential direction. The inner wall of the entrance of the female head 2 is machined into a flared mouth 21 that matches the conical surface of the male head 1, so as to facilitate the insertion of the male head 1.

[0026] On the inner wall of the outer port of the female head 2, multiple circumferentially equidistant mounting grooves are provided radially. A wedge block 3 is slidably connected in each groove. The inner working surface of the wedge block 3 is an inclined surface at a certain angle to the axis of the male head 1, and the outer surface is the force-bearing surface.

[0027] The male head 1 is rotatably sleeved with a locking ring 4 via a bearing. The front end of the inner wall of the locking ring 4 is fixed with a pressing strip 5 corresponding to the wedge block 3. The width of the pressing strip 5 gradually changes along the circumference of the locking ring 4. When it rotates with the locking ring 4, its gradually changing side will press the outer force surface of the wedge block 3, forcing the wedge block 3 to slide along the radial mounting groove of the female head 2 towards the axis. It should be noted that when the wedge block 3 slides outward to its farthest point, the size of the hole groove formed between its inner ends can facilitate the free insertion of the male head 1 into the female head 2.

[0028] To ensure sealing performance, sealing grooves are respectively opened on the conical sealing surface of the male head 1 and the horizontal end face that mates with the female head 2, and a first sealing ring 12 and a second sealing ring 13 are embedded therein. The first sealing ring 12 is preferably an O-ring, and the second sealing ring 13 is preferably a plug seal or a metal composite sealing ring that can withstand higher pressure.

[0029] To prevent the locking ring 4 from accidentally reversing and causing the connection to loosen, a ring of ratchet teeth 6 is fixed on the outer wall of the female head 2. On one of the protrusions 41 of the locking ring 4, an anti-reverse mechanism is installed via a bracket 8. This mechanism consists of a guide rod 9, a stop block 7, a spring 10, and a handle bar 14. The guide rod 9 slides through the bracket 8, with a stop block 7 fixed at one end that can engage with the ratchet teeth 6, and a handle bar 14 rotatably mounted at the other end. The spring 10 is sleeved on the guide rod 9, and its two ends act on the stop block 7 and the bracket 8 respectively, providing the stop block 7 with a continuous elastic force pressing against the ratchet teeth 6. A protrusion 81 is also fixed on the bracket 8 to support the handle bar 14 in the non-operating state. When it is necessary to reverse the locking ring 4, the handle bar 14 can be pulled outward, and the stop block 7 can be disengaged from the ratchet teeth 6 via the guide rod 9. Then, the handle bar 14 can be rotated to lock onto the outer edge of the protrusion 41, thus facilitating the reversal of the locking ring 4.

[0030] A fracturing manifold includes the aforementioned quick positioning device. When applied to the fracturing manifold, the quick positioning device welds and fixes the male connector 1 and the female connector 2 to both ends of the fracturing pipe body 15, thereby facilitating rapid docking and assembly between different pipelines.

[0031] Assembly process: Align the tube with the female head 2 with the tube or equipment port with the male head 1, push the tube forward so that the conical surface of the male head 1 enters the flared mouth 21 of the female head 2. Under the guidance, it will automatically center until the end face of the male head 1 contacts the inner shoulder of the female head 2. Then rotate the locking ring 4 clockwise. The locking ring 4 drives the extrusion strip 5 to rotate, extruding all the wedge blocks 3 to move towards the center synchronously until the inner tip of the wedge block 3 is firmly embedded in the inclined groove 11 at the tail end of the male head 1. At this time, you will feel a significant increase in torque, indicating that the locking is in place. During the rotation of the locking ring 4, the stop block 7 moves. The stop block 7 is restricted by the inclined extrusion of the ratchet 6 in turn. The compression spring 10 of the stop block 7 extends and retracts, and is locked into the tooth groove of the ratchet 6 to prevent the locking ring 4 from reversing.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A rapid positioning device, characterized in that: It includes a male head (1) and a female head (2). The outer port of the male head (1) adopts a conical structure, and the interior of the female head (2) adopts a flared mouth (21) that matches the guide cone surface of the male head (1). A wedge block (3) is slidably connected to the inner wall of the outer port of the female head (2) along the radial direction. A locking ring (4) is rotatably sleeved on the outer side of the female head (2), and a pressing strip (5) with a gradually changing width is provided on the inner edge of the outer port of the locking ring (4). The pressing strip (5) is used to press the wedge block (3) closer to the axis.

2. The rapid positioning device according to claim 1, characterized in that: Two first sealing rings (12) are sequentially embedded on the conical sealing surfaces of the male head (1) and the female head (2), and a second sealing ring (13) is embedded on the horizontal sealing surfaces of the male head (1) and the female head (2).

3. The rapid positioning device according to claim 1, characterized in that: The wedge-shaped blocks (3) are evenly distributed at equal intervals along the circumference of the mother head (2), and the extrusion strips (5) correspond one-to-one with the wedge-shaped blocks (3).

4. The rapid positioning device according to claim 1, characterized in that: The male head (1) has circumferentially evenly spaced inclined grooves (11) on its tail end face, corresponding to the number of wedge blocks (3).

5. A rapid positioning device according to claim 1, characterized in that: The outer wall of the locking ring (4) is provided with several protruding protrusions (41).

6. A rapid positioning device according to claim 5, characterized in that: The outer wall of the female head (2) is provided with a ring of ratchet teeth (6). A guide rod (9) is installed on one of the protrusions (41) via a bracket (8). The guide rod (9) slides through the inside of the bracket (8). A stop block (7) is fixed at one end of the guide rod (9) near the ratchet teeth (6). A spring (10) is also installed between the stop block (7) and the bracket (8). A handle bar (14) is rotatably installed at the other end of the guide rod (9). A protrusion (81) supporting the handle bar (14) is fixed on the outer wall of the bracket (8).

7. A fracturing manifold, comprising the rapid positioning device as described in any one of claims 1-6, characterized in that: It also includes a fracturing tube (15), and the male head (1) and female head (2) of the quick positioning device are respectively fixed at both ends of the fracturing tube (15).

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