A fracturing valve seat for oil drilling

Abstract

This utility model discloses an oil drilling fracturing valve seat, belonging to the field of valve technology. It includes a valve body, with a mounting block fixedly connected to its surface. A mounting seat is installed at the upper end of the valve body, and a valve stem is installed inside the mounting seat. Connecting rings are fixedly connected to both ends of the valve body, and a loading / unloading assembly is installed in the middle of the valve body. An auxiliary docking assembly is rotatably connected to the surface of the mounting block. This utility model, by setting up the auxiliary docking assembly, can provide auxiliary calibration and support when the device needs to be connected to other pipelines, making operation more convenient for workers. It can also be rotated and retracted, saving space during storage and demonstrating strong practicality. The loading / unloading assembly allows for quick loading and unloading of the mounting seat, facilitating valve core maintenance. In case of malfunction, the valve core can be quickly maintained without requiring complete replacement, reducing costs. It is simple to operate and highly practical.

Description

Technical Field

[0001] This utility model belongs to the field of valve technology, specifically relating to an oil drilling fracturing valve seat. Background Technology

[0002] Oil drilling is an engineering technology that uses specialized equipment to drill cylindrical boreholes at selected surface locations down to underground oil and gas reservoirs. It undertakes core tasks such as exploring oil-bearing structures, obtaining industrial oil flows, and oil production. This process is categorized by purpose into exploratory wells (regional exploratory wells, pre-exploration wells, etc.) and development wells (production wells, water injection wells, etc.). Well types include vertical wells, directional wells, and horizontal wells. The construction process encompasses three main stages: pre-drilling engineering, drilling operations, and well completion operations, requiring the coordinated operation of eight types of drilling rigs, including rotary drilling systems and circulation systems.

[0003] When the fracturing valve seat in oil drilling is in operation, the existing technology cannot provide auxiliary calibration and support when connecting to other pipelines, making pipeline connection cumbersome and difficult to operate, with limited practicality. It also cannot quickly install or remove the mounting seat, making it inconvenient to maintain the valve core and not convenient enough. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides an oil drilling fracturing valve seat that features auxiliary pipe connection and a quick-release mounting base.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fracturing valve seat for oil drilling, comprising a valve body, an mounting block fixedly connected to the surface of the valve body, an mounting seat installed at the upper end of the valve body, a valve stem installed inside the mounting seat, docking rings fixedly connected to both ends of the valve body, a loading and unloading assembly installed in the middle of the valve body, and an auxiliary docking assembly rotatably connected to the surface of the mounting block.

[0006] The auxiliary docking assembly includes a limiting component, which is mounted on the surface of the mounting block. Rotating rods are mounted at both ends of the limiting component, and lifting semi-rings are fixedly connected to the surfaces of the rotating rods.

[0007] Preferably, a lifting block is installed at the lower end of the rotating rod, and a pin is installed at one end of the rotating rod.

[0008] Preferably, the limiting component includes a rotating rod, which is mounted on the surface of the mounting block. A gear is fixedly connected to the surface of the rotating rod, a rack is mounted on the surface of the gear, a telescopic rod is fixedly connected to one end of the rack, a limiting plate is slidably connected to the surface of the telescopic rod, and a return spring is fixedly connected to one end of the limiting plate.

[0009] Preferably, a handle is fixedly connected to one end of the rotating rod, and a triangular block is fixedly connected to one end of the return spring.

[0010] Preferably, the loading and unloading assembly includes a lifting frame, which is installed in the middle of the valve body. A movable plate is installed on the upper end of the lifting frame. A guide rod is slidably connected inside the movable plate. A positioning spring is installed on the surface of the guide rod. Limit rods are slidably connected to both ends of the movable plate, and a limiting rod is slidably connected to one end of the lifting frame.

[0011] Preferably, the other end of the lifting frame is threadedly connected to a threaded rod, and a locking block is fixedly connected to the upper end of the moving plate.

[0012] Preferably, a handle is fixedly connected to the upper end of the threaded rod, and a slot is provided on the locking block.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. By setting up an auxiliary docking component, this utility model can play a role in auxiliary calibration and support when the device needs to be docked with other pipelines, making it more convenient for workers to operate. It can also be rotated and retracted, and does not take up extra space when stored, making it highly practical.

[0015] 2. This utility model, by setting up a loading and unloading component, allows for quick loading and unloading of the mounting base, thereby facilitating the maintenance of the valve core. In case of malfunction, the valve core can be quickly maintained without the need for complete replacement, reducing costs. It is simple to operate and highly practical. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the auxiliary docking component of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the limiting component of this utility model;

[0019] Figure 4 This is a schematic diagram of the loading and unloading assembly of this utility model.

[0020] In the diagram: 1. Mounting block; 2. Valve body; 3. Connecting ring; 4. Loading / unloading assembly; 41. Lifting frame; 42. Limiting rod; 43. Moving plate; 44. Guide rod; 45. Limiting rod; 46. Positioning spring; 5. Valve stem; 6. Mounting seat; 7. Auxiliary docking assembly; 71. Limiting assembly; 711. Rotating rod; 712. Gear; 713. Rack; 714. Return spring; 715. Telescopic rod; 716. Limiting plate; 72. Rotating rod; 73. Lifting half ring. Detailed Implementation

[0021] 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.

[0022] Example 1

[0023] Please see Figure 1-4 The present invention provides the following technical solution: a fracturing valve seat for oil drilling, including a valve body 2, an mounting block 1 fixedly connected to the surface of the valve body 2, an mounting seat 6 installed at the upper end of the valve body 2, a valve stem 5 installed inside the mounting seat 6, docking rings 3 fixedly connected to both ends of the valve body 2, a loading and unloading assembly 4 installed in the middle of the valve body 2, and an auxiliary docking assembly 7 rotatably connected to the surface of the mounting block 1.

[0024] The auxiliary docking assembly 7 includes a limiting assembly 71, which is mounted on the surface of the mounting block 1. Rotating rods 72 are mounted at both ends of the limiting assembly 71, and lifting semi-rings 73 are fixedly connected to the surface of the rotating rods 72.

[0025] Specifically, a lifting block is installed at the lower end of the rotating rod 72, and a pin is installed at one end of the rotating rod 72.

[0026] By adopting the above technical solution, the limiting component 71 is used to limit the rotating rod 72. The rotating rod 72 can rotate around the axis through the pin, and the lifting half ring 73 rotates with the rotating rod 72 to lift the pipe used for docking, making the docking of the pipe more accurate and convenient. The lower lifting block enhances the support stability.

[0027] Specifically, the limiting component 71 includes a rotating rod 711, which is mounted on the surface of the mounting block 1. A gear 712 is fixedly connected to the surface of the rotating rod 711. A rack 713 is mounted on the surface of the gear 712. A telescopic rod 715 is fixedly connected to one end of the rack 713. A limiting plate 716 is slidably connected to the surface of the telescopic rod 715. A return spring 714 is fixedly connected to one end of the limiting plate 716.

[0028] By adopting the above technical solution, the rotating rod 711 is manually rotated through the end handle, which drives the gear 712 to rotate. The gear 712 converts the rotational motion into the linear motion of the rack 713, which pushes the telescopic rod 715 to extend or retract. The limiting plate 716 limits the range of movement of the telescopic rod 715. The return spring 714 returns the component to its original position after operation. The triangular block is installed at one end of the return spring 714, and the inclined surface design facilitates the retraction of the rotating rod 72.

[0029] Specifically, a handle is fixedly connected to one end of the rotating rod 711, and a triangular block is fixedly connected to one end of the return spring 714.

[0030] By adopting the above technical solution, a handle is fixedly connected to one end of the rotating rod 711, which can be rotated. A triangular block is fixedly connected to one end of the return spring 714, and the inclined surface design allows direct entry when restriction is required.

[0031] In this embodiment, when in use: the limiting component 71 is used to limit the rotating rod 72, which can rotate around the axis via a pin, and the lifting half ring 73 rotates with the rotating rod 72 to lift the pipe for docking, making the docking of the pipe more accurate and convenient. The lower lifting block enhances the support stability.

[0032] The rotating rod 711 is manually rotated via the end handle, which drives the gear 712 to rotate. The gear 712 converts the rotational motion into the linear motion of the rack 713, which pushes the telescopic rod 715 to extend or retract. The limiting plate 716 limits the range of movement of the telescopic rod 715. The return spring 714 returns the assembly to its original position after operation. A triangular block is installed at one end of the return spring 714, and the inclined surface design makes it easy for the rotating rod 72 to retract.

[0033] One end of the rotating rod 711 is fixedly connected to a handle, which can be rotated. One end of the return spring 714 is fixedly connected to a triangular block, and the inclined surface design allows it to be directly inserted when restriction is required.

[0034] Example 2

[0035] The difference between this embodiment and embodiment 1 is that, specifically, the loading and unloading assembly 4 includes a lifting frame 41, which is installed in the middle of the valve body 2. A movable plate 43 is installed on the upper end of the lifting frame 41. A guide rod 44 is slidably connected inside the movable plate 43. A positioning spring 46 is installed on the surface of the guide rod 44. Limiting rods 45 are slidably connected at both ends of the movable plate 43. A limiting rod 42 is slidably connected at one end of the lifting frame 41.

[0036] By adopting the above technical solution, the threaded rod adjusts the height of the lifting frame 41 by rotating the handle, which is used to push the moving plate 43 to lock the mounting seat 6. The limiting rod 42 restricts the movement direction of the lifting frame 41, the moving plate 43 slides on the guide rod 44, the positioning spring 46 provides reset, the two end limit rods 45 limit the movement range, and the slot on the locking block engages with the external structure to fix the position of the mounting seat 6, realizing quick loading and unloading.

[0037] Specifically, the other end of the lifting frame 41 is threaded with a threaded rod, and the upper end of the moving plate 43 is fixedly connected with a locking block.

[0038] By adopting the above technical solution, the other end of the lifting frame 41 is threaded with a threaded rod, which can be adjusted for lifting, and the upper end of the moving plate 43 is fixedly connected with a locking block, which can be locked.

[0039] Specifically, a handle is fixedly connected to the upper end of the threaded rod, and a slot is opened on the locking block.

[0040] By adopting the above technical solution, a handle is fixedly connected to the upper end of the threaded rod, which can rotate the threaded rod, and a slot is opened on the locking block, which can be locked by a snap.

[0041] In this embodiment, when in use: the threaded rod is rotated by the handle to adjust the height of the lifting frame 41, which is used to push the moving plate 43 and lock the mounting seat 6. The limiting rod 42 limits the movement direction of the lifting frame 41. The moving plate 43 slides on the guide rod 44. The positioning spring 46 provides reset. The two end limit rods 45 limit the movement range. The slot on the locking block engages with the external structure to fix the position of the mounting seat 6 and realize quick loading and unloading.

[0042] The other end of the lifting frame 41 is threaded with a threaded rod, which can be adjusted for lifting. The upper end of the moving plate 43 is fixedly connected with a locking block, which can be locked.

[0043] A handle is fixedly connected to the upper end of the threaded rod, which can be rotated. The locking block has a slot for locking.

[0044] The structure and operating principle of the valve body 2, docking ring 3, valve stem 5, and mounting base 6 in this utility model have been disclosed in a petroleum drilling fracturing valve seat disclosed in Chinese patent application number 202020798724.6.

[0045] The working principle and usage process of this utility model: When this utility model is used, the valve seat is mainly used in high-pressure drilling environments. The valve stem 5 controls the opening and closing of the valve to realize the opening and closing of the fluid channel. The docking ring 3 is used to connect with the pipeline. The valve body 2 serves as the main body to bear the pressure. The mounting seat 6 provides support and guidance for the valve stem 5. The auxiliary docking component 7 is used to simplify the docking process with other equipment and ensure the connection is stable. The loading and unloading component 4 is used to quickly install or remove the mounting seat 6 to improve maintenance efficiency. The mounting block 1 provides support.

[0046] The limiting component 71 is used to limit the rotating rod 72, which can rotate around the axis via a pin. The lifting half ring 73 rotates with the rotating rod 72, lifting the pipe for docking, making the docking of the pipe more accurate and convenient. The lower lifting block enhances the support stability.

[0047] The rotating rod 711 is manually rotated via the end handle, which drives the gear 712 to rotate. The gear 712 converts the rotational motion into the linear motion of the rack 713, which pushes the telescopic rod 715 to extend or retract. The limiting plate 716 limits the range of movement of the telescopic rod 715. The return spring 714 returns the assembly to its original position after operation. A triangular block is installed at one end of the return spring 714, and the inclined surface design makes it easy for the rotating rod 72 to retract.

[0048] The threaded rod adjusts the height of the lifting frame 41 by rotating the handle, which is used to push the moving plate 43 and lock the mounting seat 6. The limiting rod 42 restricts the movement direction of the lifting frame 41. The moving plate 43 slides on the guide rod 44. The positioning spring 46 provides reset. The limit rods 45 at both ends limit the movement range. The slot on the locking block engages with the external structure to fix the position of the mounting seat 6 and realize quick loading and unloading.

[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fracturing valve seat for oil drilling, comprising a valve body (2), wherein a mounting block (1) is fixedly connected to the surface of the valve body (2), a mounting seat (6) is mounted on the upper end of the valve body (2), a valve stem (5) is mounted inside the mounting seat (6), and mating rings (3) are fixedly connected to both ends of the valve body (2), characterized in that: The valve body (2) is equipped with a loading and unloading assembly (4) in the middle, and the mounting block (1) is rotatably connected to an auxiliary docking assembly (7); The auxiliary docking assembly (7) includes a limiting assembly (71), which is mounted on the surface of the mounting block (1). Rotating rods (72) are mounted at both ends of the limiting assembly (71), and a lifting half-ring (73) is fixedly connected to the surface of the rotating rods (72).

2. The oil drilling fracturing valve seat according to claim 1, characterized in that: A lifting block is installed at the lower end of the rotating rod (72), and a pin is installed at one end of the rotating rod (72).

3. The oil drilling fracturing valve seat according to claim 1, characterized in that: The limiting component (71) includes a rotating rod (711), which is mounted on the surface of the mounting block (1). A gear (712) is fixedly connected to the surface of the rotating rod (711). A rack (713) is mounted on the surface of the gear (712). A telescopic rod (715) is fixedly connected to one end of the rack (713). A limiting plate (716) is slidably connected to the surface of the telescopic rod (715). A return spring (714) is fixedly connected to one end of the limiting plate (716).

4. The oil drilling fracturing valve seat according to claim 3, characterized in that: One end of the rotating rod (711) is fixedly connected to a handle, and one end of the return spring (714) is fixedly connected to a triangular block.

5. The oil drilling fracturing valve seat according to claim 1, characterized in that: The loading and unloading assembly (4) includes a lifting frame (41), which is installed in the middle of the valve body (2). A movable plate (43) is installed on the upper end of the lifting frame (41). A guide rod (44) is slidably connected inside the movable plate (43). A positioning spring (46) is installed on the surface of the guide rod (44). Limiting rods (45) are slidably connected at both ends of the movable plate (43). A limiting rod (42) is slidably connected at one end of the lifting frame (41).

6. The oil drilling fracturing valve seat according to claim 5, characterized in that: The other end of the lifting frame (41) is threaded with a threaded rod, and the upper end of the moving plate (43) is fixedly connected with a locking block.

7. The oil drilling fracturing valve seat according to claim 6, characterized in that: A handle is fixedly connected to the upper end of the threaded rod, and a slot is provided on the locking block.

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