A highly wear-resistant and corrosion-resistant choke and kill manifold

Abstract

The present invention relates to the technical field of manifolds, and specifically to a highly wear-resistant and corrosion-resistant choke and kill manifold, which includes a base; a sliding seat slidably mounted on the base; a mounting mechanism provided on the sliding seat; a valve body provided on the mounting mechanism; a first flange fixedly mounted on the valve body; a five-way fixedly mounted on the base; a protective pipeline provided in the five-way; and a docking mechanism provided on the five-way; wherein, the mounting mechanism includes a limiting device, an anti-disengagement device and a driving component. For this highly wear-resistant and corrosion-resistant choke and kill manifold, by providing a docking mechanism, the two flanges on the valve body and the five-way can be docked and fixed, without the need to use bolts to install the valve body on the five-way, thereby improving the efficiency of installing and disassembling the valve body. By providing a protective pipeline, the inner wall of the connection between the valve body and the five-way can be sealed and protected, improving the wear resistance and corrosion resistance of the connection.

Description

Technical Field

[0001] The present invention relates to the technical field of manifolds, and particularly to a highly wear-resistant and corrosion-resistant choke and kill manifold. Background Art

[0002] A choke and kill manifold is a set of special manifolds equipped with adjustable choke valves. During the kill operation, a certain backpressure is applied to the well by adjusting the choke valve, and the fluid in the well is restricted by the manifold to make the fluid in the well flow or change the flow direction under control. Generally, the kill manifold and the choke manifold are used in combination, each with its own responsibility; the kill manifold is responsible for transporting the kill fluid, and the choke manifold is responsible for adjusting the pressure balance and blowout prevention. Both the choke and kill manifolds are composed of a base, a pressure gauge, a four-way or five-way connection, and multiple valve bodies. Among them, the valve bodies on the choke manifold are generally flat valves and choke valves, while the valve bodies on the kill manifold are flat valves and check valves.

[0003] Traditional choke and kill manifolds are relatively large in volume and have a fixed structure. The valve bodies thereon are fixed to the five-way connection through bolts and flanges, and are also fixed to the base through brackets. When installing and disassembling, it requires the assistance of hoisting equipment and multiple operators. The disassembly and assembly steps are cumbersome and inefficient, making it inconvenient to operate at the construction site at any time. As a result, it is not easy to frequently inspect and maintain the manifold, and it is also inconvenient to replace a certain valve body when a failure occurs; in addition, the protection ability of the pipeline joints of traditional manifolds is weak, and they are easily worn and corroded under the scouring of mud, resulting in liquid leakage and other phenomena at the pipeline joints. In view of this, we propose a highly wear-resistant and corrosion-resistant choke and kill manifold. Summary of the Invention

[0004] The purpose of the present invention is to provide a highly wear-resistant and corrosion-resistant choke and kill manifold, which solves the problems in the background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A highly wear-resistant and corrosion-resistant choke and kill manifold, comprising a base; a sliding seat slidably installed on the base; an installation mechanism provided on the sliding seat; a valve body provided on the installation mechanism; a first flange fixedly installed on the valve body; a five-way connection fixedly installed on the base; a protective pipeline provided in the five-way connection; and a docking mechanism provided on the five-way connection; wherein, the installation mechanism includes a limiting device, an anti-disengagement device, and a driving component.

[0007] Further, the docking mechanism includes a fixed pipe, one end of the fixed pipe is fixedly installed on the five-way joint, a second flange is fixedly installed at the end of the fixed pipe away from the five-way joint, a movable ring is slidably installed on the fixed pipe, a positioning pin is fixedly installed on the inner wall of the movable ring, a piston plate is fixedly installed at one end of the positioning pin, the surface of the piston plate is piston-connected to the inner wall of the five-way joint, and the inner wall of the piston plate is fixedly connected to the surface of the protective pipe; the surface of the protective pipe is slidably connected to the inner wall of the fixed pipe, and a transmission component for controlling the movement of the protective pipe is arranged on the movable ring.

[0008] Further, the transmission component includes a fixing plate, the fixing plate is fixedly installed on the second flange, a rotating rod is rotatably installed on the fixing plate, a transmission gear is fixedly installed on the rotating rod, a transmission rack is meshed with the surface of the transmission gear, and the transmission rack is fixedly installed on the movable ring; the driving component has teeth, and the teeth can be meshed with the transmission gear.

[0009] Further, the movable ring is elastically connected to the second flange through a spring.

[0010] Further, the limiting device includes a support plate, the support plate is fixedly installed on the sliding seat, a bidirectional lead screw is rotatably installed on the inner wall of the support plate, two movable frames are threadedly connected to the surface of the bidirectional lead screw, first clamping seats are fixedly installed on both of the two movable frames, the valve body is placed on the first clamping seats, connecting rods are rotatably installed on the inner walls of both of the two movable frames, and second clamping seats are fixedly installed on the connecting rods.

[0011] Further, a trigger gear is fixedly installed on the connecting rod, a trigger rack is meshed with the surface of the trigger gear, a mounting plate is fixedly installed on the trigger rack, an inclined plate is slidably installed on the inner wall of the mounting plate, a straight plate is fixedly installed on the inclined plate, and a pressing plate is fixedly installed at one end of the straight plate away from the inclined plate.

[0012] Further, the limiting device further includes a first limiting plate and a second limiting plate, both the first limiting plate and the second limiting plate are fixedly installed on the movable frame, the mounting plate is slidably installed on the first limiting plate, the mounting plate is elastically connected to the first limiting plate through a spring, the straight plate is slidably installed on the second limiting plate, and the straight plate is elastically connected to the second limiting plate through a spring.

[0013] Further, the anti-disengagement device includes a movable plate, the movable plate is slidably installed on the inner wall of the first clamping seat, a connecting plate is fixedly installed at the top end of the movable plate, a clamping block is fixedly installed at the top end of the connecting plate, and a clamping groove adapted to the clamping block is formed on one side of the second clamping seat close to the first clamping seat.

[0014] Further, a trapezoidal groove is provided at the top of the sliding seat, and the bottom end of the movable plate is located in the trapezoidal groove.

[0015] Further, one end of the bidirectional lead screw penetrates through the support plate and is fixedly installed with a turning handle. A guide plate is fixedly installed on the support plate, and the movable frame is slidably installed on the guide plate;

[0016] The driving component is fixedly installed on the second clamping seat.

[0017] By means of the above technical solution, the present invention provides a highly wear-resistant and corrosion-resistant throttle kill manifold. It has at least the following beneficial effects:

[0018] (1) For the highly wear-resistant and corrosion-resistant throttle kill manifold, by providing a docking mechanism, the two flanges on the valve body and the five-way connection can be docked and fixed. There is no need to use bolts to install the valve body on the five-way connection, thereby improving the efficiency of installing and disassembling the valve body. By providing a protective pipeline, the inner wall of the connection between the valve body and the five-way connection can be sealed and protected, improving the wear resistance and corrosion resistance of the connection, and enhancing the overall anti-mud erosion ability of the manifold.

[0019] (2) For the highly wear-resistant and corrosion-resistant throttle kill manifold, by providing a limiting device, the valve body can be supported and fixed, and at the same time, the valve body can be driven to move on the base. There is no need to use a bracket to fix the valve body on the base, and there is no need to use lifting equipment to transfer the valve body, making the disassembly and assembly steps of the valve body simpler and facilitating the inspection and maintenance of the manifold at the construction site at any time.

[0020] (3) For the highly wear-resistant and corrosion-resistant throttle kill manifold, by providing a driving component, when the clamping seat moves, the positioning pin and the protective pipeline can be driven to move synchronously, so that the positioning pin and the protective pipeline automatically enter the second flange and the valve body. The steps are simple and the operation efficiency is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the protective pipeline in the present invention;

[0024] Figure 3 It is a schematic diagram of the docking mechanism in the present invention;

[0025] Figure 4 It is a schematic diagram of the transmission component in the present invention;

[0026] Figure 5 Schematic diagram of the installation mechanism in the present invention;

[0027] Figure 6 Schematic diagram of the anti - detachment mechanism in the present invention;

[0028] Figure 7 Cross - sectional view of the second clamping seat in the present invention;

[0029] Figure 8 Schematic diagram of the inclined plate in the present invention.

[0030] In the figure: 1, base; 11, limit sliding groove; 2, five - way joint; 3, sliding seat; 31, trapezoidal groove; 4, installation mechanism; 41, limiting device; 411, support plate; 412, bidirectional lead screw; 413, movable frame; 414, first clamping seat; 415, guide plate; 416, connecting rod; 417, second clamping seat; 418, trigger gear; 419, trigger rack; 4110, mounting plate; 4111, inclined plate; 4112, straight plate; 4113, second limiting plate; 4114, turning handle; 4115, pressing plate; 4116, first limiting plate; 42, anti - detachment device; 421, movable plate; 422, connecting plate; 423, clamping block; 43, driving component; 5, valve body; 6, docking mechanism; 61, fixed pipe; 62, second flange; 63, movable ring; 64, positioning pin; 65, piston plate; 66, transmission component; 661, fixing plate; 662, rotating rod; 663, transmission gear; 664, transmission rack; 7, protective pipeline; 8, first flange. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0032] Please refer to Figures 1-8 , a technical solution provided by the present invention:

[0033] A highly wear-resistant and corrosion-resistant choke and kill manifold, comprising a base 1; a sliding seat 3 slidably mounted on the base 1; a mounting mechanism 4 provided on the sliding seat 3; a valve body 5 provided on the mounting mechanism 4; a first flange 8 fixedly mounted on the valve body 5; a five-way connection 2 fixedly mounted on the base 1; a protective pipe 7 provided in the five-way connection 2; and a docking mechanism 6 provided on the five-way connection 2. A limit chute 11 for the sliding seat 3 to slide is provided on the base 1. By sliding the base 1 in the limit chute 11, the mounting mechanism 4 and the valve body 5 can be driven to move, so as to achieve the purpose of assembling and disassembling the manifold. By providing valve bodies 5 with different functions on the mounting mechanism 4, such as manual flat valves, manual chokes, hydraulic chokes, check valves, etc., a choke or kill manifold can be assembled. By providing the docking mechanism 6 and the mounting mechanism 4, it is convenient to disassemble and assemble the choke and kill manifold, and further convenient to assemble, repair and maintain the manifold according to actual needs at the construction site. When the valve body 5 is damaged, it can be quickly replaced, ensuring the construction efficiency.

[0034] Among them, the mounting mechanism 4 includes a limiting device 41, an anti-disengagement device 42 and a driving component 43, and the driving component 43 is used to control the movement of the docking mechanism 6.

[0035] Specifically, the docking mechanism 6 in this embodiment includes a fixed pipe 61. One end of the fixed pipe 61 is fixedly mounted on the five-way connection 2, and a second flange 62 is fixedly mounted at the end of the fixed pipe 61 away from the five-way connection 2. A movable ring 63 is slidably mounted on the fixed pipe 61. A positioning pin 64 is fixedly mounted on the inner wall of the movable ring 63. There are through holes provided on the first flange 8. The number of the positioning pins 64 is the same as that of the through holes, and the outer diameter of the positioning pin 64 is the same as the inner diameter of the through holes. The structure of the second flange 62 is the same as that of the first flange 8. By moving the movable ring 63, a plurality of positioning pins 64 can be simultaneously driven to pass through the through holes on the second flange 62 and enter the first flange 8 to limit the relative radial movement between the two flanges. On the other hand, the limit chute 11 provided on the base 1 can limit the sliding seat 3 so that the sliding seat 3 cannot move along the axial direction of the fixed pipe 61, so as to achieve the purpose of mounting the valve body 5 on the five-way connection 2.

[0036] Since the anti-mud erosion resistance at the pipe connection is weaker than other places, it is vulnerable to wear and corrosion, and then phenomena such as liquid leakage occur. Therefore, a piston plate 65 is fixedly installed at one end of the positioning pin 64. The surface of the piston plate 65 is piston-connected to the inner wall of the five-way pipe 2. The inner wall of the piston plate 65 is fixedly connected to the surface of the protective pipe 7. The surface of the protective pipe 7 is slidably connected to the inner wall of the fixed pipe 61. A transmission component 66 for controlling the movement of the protective pipe 7 is arranged on the movable ring 63. By setting the transmission component 66, the protective pipe 7 can be driven to move along its own axis direction and enter the valve body 5, so as to achieve the purpose of sealing and protecting the connection between the valve body 5 and the five-way pipe 2, making the inner wall of the connection between the valve body 5 and the five-way pipe 2 more wear-resistant and corrosion-resistant, thereby improving the overall anti-mud erosion resistance of the pipe assembly.

[0037] In this embodiment, the limiting device 41 includes a support plate 411. The support plate 411 is fixedly installed on the sliding seat 3. A bidirectional lead screw 412 is rotatably installed on the inner wall of the support plate 411. One end of the bidirectional lead screw 412 penetrates through the support plate 411 and is fixedly installed with a turning handle 4114. Two movable frames 413 are threadedly connected to the surface of the bidirectional lead screw 412. A guide plate 415 is fixedly installed on the support plate 411. The movable frame 413 is slidably installed on the guide plate 415. By setting the guide plate 415, the circumferential movement of the movable frame 413 can be restricted. When the bidirectional lead screw 412 rotates, the two movable frames 413 can be driven to move in the same direction at the same time. First clamping seats 414 are fixedly installed on both of the two movable frames 413. The valve body 5 is placed on the first clamping seats 414. Connecting rods 416 are rotatably installed on the inner walls of both of the two movable frames 413. Second clamping seats 417 are fixedly installed on the connecting rods 416. The first clamping seats 414 and the second clamping seats 417 cooperate with each other to clamp and fix the valve body 5. By driving the first clamping seats 414 and the second clamping seats 417 to move through the movable frame 413, the valve body 5 can be pressed tightly against the five-way pipe 2, thereby preventing the valve body 5 from moving randomly.

[0038] Furthermore, the transmission assembly 66 includes a fixing plate 661 which is fixedly installed on the second flange 62. A rotating rod 662 is rotatably installed on the fixing plate 661. A transmission gear 663 is fixedly installed on the rotating rod 662. A transmission rack 664 is engaged with the surface of the transmission gear 663. The transmission rack 664 is fixedly installed on the movable ring 63. The movable ring 63 is elastically connected to the second flange 62 through a spring, so that the movable ring 63 can automatically reset when the external force restriction is removed. The driving component 43 is fixedly installed on the second clamping seat 417, and the driving component 43 is a bracket with teeth on it. The teeth are engaged with the transmission gear 663. When the second clamping seat 417 moves, it can synchronously drive the driving component 43 to move, so that the teeth on the driving component 43 are engaged with the transmission gear 663, and drive the transmission gear 663 to rotate. The transmission gear 663 drives the transmission rack 664 to move in the opposite direction through meshing, thereby providing power for the movement of the docking mechanism 6.

[0039] It should be noted that a trigger gear 418 is fixedly installed on the connecting rod 416. A trigger rack 419 is engaged with the surface of the trigger gear 418. A mounting plate 4110 is fixedly installed on the trigger rack 419. An inclined plate 4111 is slidably installed on the inner wall of the mounting plate 4110. A straight plate 4112 is fixedly installed on the inclined plate 4111. An inclined groove adapted to the inclined plate 4111 is formed on the inner wall of the mounting plate 4110. Through the cooperation of the inclined groove and the inclined plate 4111, the transmission direction of the movement can be changed, so that the movement directions of the straight plate 4112 and the mounting plate 4110 are perpendicular to each other. The limiting device 41 further includes a first limiting plate 4116 and a second limiting plate 4113. Both the first limiting plate 4116 and the second limiting plate 4113 are fixedly installed on the movable frame 413. The mounting plate 4110 is slidably installed on the first limiting plate 4116. The mounting plate 4110 is elastically connected to the first limiting plate 4116 through a spring. The straight plate 4112 is slidably installed on the second limiting plate 4113. The straight plate 4112 is elastically connected to the second limiting plate 4113 through a spring. By setting the first limiting plate 4116 and the second limiting plate 4113, the mounting plate 4110 and the straight plate 4112 can be respectively limited. One end of the straight plate 4112 away from the inclined plate 4111 is fixedly installed with a pressing plate 4115. When the two movable frames 413 move to the specified positions, the two pressing plates 4115 can contact each other and be pressed against each other as the two movable frames 413 continue to move, so that relative movement is generated between the two inclined plates 4111 and the two mounting plates 4110, and further the two mounting plates 4110 move towards one side of the valve body 5. The mounting plate 4110 synchronously drives the trigger rack 419 to move. The trigger rack 419 drives the trigger gear 418 to rotate through meshing. The trigger gear 418 drives the second clamping seat 417 to rotate through the connecting rod 416, so that the second clamping seat 417 is disengaged from the valve body 5, facilitating the removal of the valve body 5 from the mounting mechanism 4.

[0040] In addition, the anti-loosening device 42 includes a movable plate 421 which is slidably mounted on the inner wall of the first clamping seat 414. A connecting plate 422 is fixedly mounted at the top of the movable plate 421, and two clamping blocks 423 are fixedly mounted at the top of the connecting plate 422. A clamping groove adapted to the clamping blocks 423 is formed on one side of the second clamping seat 417 close to the first clamping seat 414. When the clamping blocks 423 are inserted into the clamping groove, the second clamping seat 417 can be limited, preventing the second clamping seat 417 from rotating randomly, thereby making the use of the valve body 5 more stable. A trapezoidal groove 31 is provided at the top of the sliding seat 3, and the bottom end of the movable plate 421 is located in the trapezoidal groove 31, and the bottom end of the movable plate 421 has an inclined surface. When the movable plate 421 moves to a specified position, the inclined surface thereon can contact the inclined surface on the trapezoidal groove 31, and under the mutual pushing of the two inclined surfaces, it moves upward. The movable plate 421 drives the clamping blocks 423 to move upward through the connecting plate 422, so that the clamping blocks 423 enter the clamping groove, realizing the clamping and limiting of the second clamping seat 417.

[0041] When the highly wear-resistant and corrosion-resistant choke and kill manifold of the present invention is in use, during the assembly of the manifold, first rotate the turning handle 4114. The turning handle 4114 drives the bidirectional lead screw 412 to rotate. The bidirectional lead screw 412 drives the two movable frames 413 to approach each other. The movable frames 413 simultaneously drive the first clamping seat 414 and the second clamping seat 417 to approach each other. When the two movable frames 413 move to the designated position, the two pressing plates 4115 can contact each other and be pressed against each other as the two movable frames 413 continue to move. As a result, relative movement is generated between the two inclined plates 4111 and the two mounting plates 4110, and then the two mounting plates 4110 move towards one side of the valve body 5. The mounting plates 4110 synchronously drive the trigger rack 419 to move. The trigger rack 419 drives the trigger gear 418 to rotate through meshing. The trigger gear 418 drives the second clamping seat 417 to rotate through the connecting rod 416, so that the valve body 5 can be placed on the first clamping seat 414. Subsequently, rotate the turning handle 4114 in the reverse direction, so that the second clamping seat 417 rotates in the reverse direction and clamps and fixes the valve body 5. Then push the sliding seat 3 along the limiting chute 11, so that the first flange 8 on the valve body 5 contacts the second flange 62 on the five-way pipe 2. Subsequently, continue to rotate the turning handle 4114 in the reverse direction, so that the two movable frames 413 move away from each other. The movable frames 413 simultaneously drive the first clamping seat 414 and the second clamping seat 417 to move, so as to press the valve body 5 tightly against the five-way pipe 2. When the first clamping seat 414 moves to the designated position, the inclined surface at the bottom of the movable plate 421 can contact the inclined surface on the trapezoidal groove 31 and move upward under the mutual pushing of the two inclined surfaces. The movable plate 421 drives the clamping block 423 to move upward through the connecting plate 422, so that the clamping block 423 enters the card slot, realizing the clamping and limiting of the second clamping seat 417 and preventing the second clamping seat 417 from rotating randomly. During the movement of the second clamping seat 417, the driving component 43 can be synchronously driven to move. After the driving component 43 moves to the designated position, the teeth on it can mesh with the transmission gear 663 and drive the transmission gear 663 to rotate. The transmission gear 663 drives the transmission rack 664 to move in the opposite direction through meshing. The transmission rack 664 drives the movable ring 63 to move. The movable ring 63 simultaneously drives the positioning pin 64 and the protective pipe 7 to move, so that the positioning pin 64 enters the through hole on the second flange 62 and enters the first flange 8 to limit the two flanges. At the same time, the protective pipe 7 enters the valve body 5 to achieve the purpose of sealing and protecting the connection between the valve body 5 and the five-way pipe 2.

[0042] It should be noted that, in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0043] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A highly wear-resistant and corrosion-resistant choke and kill manifold, characterized in that, it includes: a base (1); a sliding seat (3) slidably mounted on the base (1); a mounting mechanism (4) provided on the sliding seat (3); a valve body (5) provided on the mounting mechanism (4); a first flange (8) fixedly mounted on the valve body (5); a five-way joint (2) fixedly mounted on the base (1); a protective pipe (7) provided in the five-way joint (2); and a docking mechanism (6) provided on the five-way joint (2); wherein, the mounting mechanism (4) includes a limiting device (41), an anti-disengagement device (42) and a driving component (43); the docking mechanism (6) includes a fixed pipe (61), one end of the fixed pipe (61) is fixedly mounted on the five-way joint (2), a second flange (62) is fixedly mounted at the end of the fixed pipe (61) away from the five-way joint (2), a movable ring (63) is slidably mounted on the fixed pipe (61), a positioning pin (64) is fixedly mounted on the inner wall of the movable ring (63), a piston plate (65) is fixedly mounted at one end of the positioning pin (64), the surface of the piston plate (65) is piston-connected to the inner wall of the five-way joint (2), and the inner wall of the piston plate (65) is fixedly connected to the surface of the protective pipe (7); the surface of the protective pipe (7) is slidably connected to the inner wall of the fixed pipe (61), and a transmission assembly (66) for controlling the movement of the protective pipe (7) is provided on the movable ring (63); the transmission assembly (66) includes a fixing plate (661), the fixing plate (661) is fixedly mounted on the second flange (62), a rotating rod (662) is rotatably mounted on the fixing plate (661), a transmission gear (663) is fixedly mounted on the rotating rod (662), a transmission rack (664) is engaged with the surface of the transmission gear (663), and the transmission rack (664) is fixedly mounted on the movable ring (63); the driving component (43) has teeth, and the teeth can be engaged with the transmission gear (663); the limiting device (41) includes a support plate (411), the support plate (411) is fixedly mounted on the sliding seat (3), a bidirectional lead screw (412) is rotatably mounted on the inner wall of the support plate (411), two movable frames (413) are threadedly connected to the surface of the bidirectional lead screw (412), a first clamping seat (414) is fixedly mounted on each of the two movable frames (413), the valve body (5) is placed on the first clamping seat (414), a connecting rod (416) is rotatably mounted on the inner wall of each of the two movable frames (413), and a second clamping seat (417) is fixedly mounted on the connecting rod (416); The anti - shedding device (42) includes a movable plate (421), the movable plate (421) is slidably installed on the inner wall of the first clamping seat (414), a connecting plate (422) is fixedly installed at the top end of the movable plate (421), a clamping block (423) is fixedly installed at the top end of the connecting plate (422), and a clamping groove adapted to the clamping block (423) is formed on one side of the second clamping seat (417) close to the first clamping seat (414). A trapezoidal groove (31) is provided at the top of the sliding seat (3), and the bottom end of the movable plate (421) is located in the trapezoidal groove (31).

2. The highly wear - resistant and corrosion - resistant choke and kill manifold according to claim 1, characterized in that, The movable ring (63) is elastically connected to the second flange (62) through a spring.

3. The highly wear - resistant and corrosion - resistant choke and kill manifold according to claim 1, characterized in that, A trigger gear (418) is fixedly installed on the connecting rod (416), a trigger rack (419) is engaged with the surface of the trigger gear (418), a mounting plate (4110) is fixedly installed on the trigger rack (419), an inclined plate (4111) is slidably installed on the inner wall of the mounting plate (4110), a straight plate (4112) is fixedly installed on the inclined plate (4111), and a pressing plate (4115) is fixedly installed at one end of the straight plate (4112) away from the inclined plate (4111).

4. The highly wear - resistant and corrosion - resistant choke and kill manifold according to claim 3, characterized in that, The limiting device (41) further includes a first limiting plate (4116) and a second limiting plate (4113), both the first limiting plate (4116) and the second limiting plate (4113) are fixedly installed on the movable frame (413), the mounting plate (4110) is slidably installed on the first limiting plate (4116), the mounting plate (4110) is elastically connected to the first limiting plate (4116) through a spring, the straight plate (4112) is slidably installed on the second limiting plate (4113), and the straight plate (4112) is elastically connected to the second limiting plate (4113) through a spring.

5. The highly wear - resistant and corrosion - resistant choke and kill manifold according to claim 1, characterized in that, One end of the bidirectional lead screw (412) penetrates through the support plate (411) and is fixedly installed with a turning handle (4114), a guide plate (415) is fixedly installed on the support plate (411), and the movable frame (413) is slidably installed on the guide plate (415); The driving component (43) is fixedly installed on the second clamping seat (417).

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