Drilling leaking stoppage supercharging device

Abstract

The utility model discloses a drilling leaking stoppage supercharging device which comprises a leaking stoppage device, and the middle of the leaking stoppage device is fixedly connected with a welding fixing ring. The multiple splicing fixing frames are annularly arranged on the outer side of the leakage stopper, and every two adjacent splicing fixing frames are connected through a fixing mechanism. The top of each splicing fixing frame is provided with an inclined fixing plate inclining towards the leakage stopper, the inner side of the bottom of each splicing fixing frame is rotationally connected with a steering pressing plate, and the free end of each steering pressing plate is lapped on the upper surface of the welding fixing ring. The fixed ends of the multiple telescopic mechanisms are installed at the bottom of the oblique fixing plate, the telescopic ends of the multiple telescopic mechanisms are connected with the tops of the corresponding steering pressing plates, and the multiple steering pressing plates can press and weld the fixing ring through the telescopic mechanisms. The bottom of each splicing fixing frame is connected with a deep-layer pouring mechanism, and the deep-layer pouring mechanisms are used for injecting cement mortar into the ground so as to fix the splicing fixing frames. According to the utility model, the welding fixing ring and the leak stopper can be effectively pressed, and the leak stopper can be effectively pressurized.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine drilling, in particular to a drilling plugging and pressurizing device. Background Art

[0002] In the process of coal mining, drilling pressure plugging technology is one of the important means to ensure the safe production of coal mines. Traditional drilling pressure plugging methods include mud weight pressure method, bentonite mixing method, bubble degassing method and plugging device method. The plugging device method is a method of plugging the wellhead leak by using the blocking property provided by the plugging device. The existing plugging device is generally made of rubber or synthetic materials, and has good pressure adaptability and wear resistance. When the plugging device is installed, it plugs the wellbore through expansion deformation, thereby achieving the technical effect of pressure plugging. However, due to the lack of protection and limited pressure of the current plugging device, it is difficult to adapt to the changes in mine pressure and cannot be effectively pressurized, resulting in poor plugging effect of the plugging device. Therefore, a drilling plugging and pressurization device is urgently needed. Utility Model Content

[0003] In view of the deficiencies existing in the prior art, the utility model provides a drilling plugging and pressurizing device.

[0004] The utility model discloses a drilling plugging and pressurizing device, comprising:

[0005] A leak stopper, wherein a welding fixing ring is fixedly connected to the middle of the leak stopper;

[0006] A splicing fixing frame, wherein a plurality of the splicing fixing frames are arranged in a ring shape on the outside of the leak stopper, and two adjacent splicing fixing frames are detachably connected through a fixing mechanism; the top of each splicing fixing frame is provided with an oblique fixing plate inclined toward the leak stopper, and the inner side of the bottom of each splicing fixing frame is rotatably connected with a steering pressure plate, and the free end of the steering pressure plate rests on the upper surface of the welding fixing ring;

[0007] A telescopic mechanism, wherein the fixed ends of the plurality of telescopic mechanisms are respectively mounted on the bottom of the oblique fixed plate, and the telescopic ends of the plurality of telescopic mechanisms are respectively connected to the top of the corresponding steering pressure plate, and the plurality of steering pressure plates can press the welding fixing ring through the telescopic mechanism;

[0008] A deep-layer grouting mechanism is connected to the bottom of each splicing and fixing frame, and is used to inject cement mortar into the ground to fix the splicing and fixing frame.

[0009] As a further improvement of the present invention, the spliced ​​fixing frame is an arc-shaped structure, and a plurality of the spliced ​​fixing frames are spliced ​​together through the fixing mechanism to form an annular fixing frame body.

[0010] As a further improvement of the present invention, the fixing mechanism includes a magnetic attraction plate and an electromagnet;

[0011] The end surface of one end of the splicing fixing frame is provided with a plurality of first fixing grooves, and the plurality of magnetic suction plates are respectively telescopically installed in the corresponding first fixing grooves through electric push rods; the end surface of the other end of the splicing fixing frame is provided with an insertion groove matched with the first fixing groove; and the plurality of electromagnets are respectively installed in the corresponding insertion grooves;

[0012] When two adjacent splicing and fixing frames are spliced ​​together, the magnetic attraction plate of one of the splicing and fixing frames is extended through the electric push rod and is attracted to the electromagnet in the insertion groove of the adjacent splicing and fixing frame.

[0013] As a further improvement of the utility model, the oblique fixing plate is fan-shaped, one end of a plurality of the oblique fixing plates is respectively connected to the top of the corresponding splicing fixing frame, and the other ends of the plurality of the oblique fixing plates are all inclined downwardly toward the direction of the leak stopper;

[0014] A plurality of the oblique fixing plates are spliced ​​around the leak stopper to form a concave disc shape.

[0015] As a further improvement of the present invention, the steering pressure plate is fan-shaped, one end of a plurality of the steering pressure plates is rotatably connected to the inner side of the bottom of the corresponding splicing fixing frame through a hinge, and the other ends of the plurality of steering pressure plates are all placed on the upper surface of the welding fixing ring; and the plurality of steering pressure plates are spliced ​​into a disc shape around the welding fixing ring, and a reinforcing plate is fixedly installed on the upper surface of each steering pressure plate, and the shape of the reinforcing plate is consistent with the shape of the steering pressure plate;

[0016] The fixed ends of the multiple telescopic mechanisms are respectively installed on the bottom of the oblique fixed plate, and the telescopic ends of the multiple telescopic mechanisms are respectively connected to the corresponding reinforcing plates.

[0017] As a further improvement of the utility model, the telescopic mechanism includes a first hydraulic rod;

[0018] The fixed ends of the multiple first hydraulic rods are respectively installed at the bottom of the corresponding oblique fixed plates, and the telescopic ends of the multiple first hydraulic rods are respectively connected to the corresponding reinforcing plates. The multiple steering pressure plates can press the welding fixing rings through the telescopic action of the multiple first hydraulic rods.

[0019] As a further improvement of the utility model, the deep perfusion mechanism comprises a hollow extension plate and a fixing frame;

[0020] The top of the hollow extension plate is fixedly mounted on the bottom of the corresponding splicing fixing frame, the bottom end of the hollow extension plate is connected to the fixing frame, and the top of the hollow extension plate is fixedly connected to a feed port on one side away from the leak stopper;

[0021] A second fixing groove is provided inside the fixing frame, and a discharge port is provided on a side of the fixing frame away from the leak stopper. A feeding device is installed in the second fixing groove, and the feeding device is connected to the feeding port through the hollow extension plate via a connecting hose. The feeding device is used to inject cement mortar into the ground to fix the spliced ​​fixing frame.

[0022] As a further improvement of the present invention, the hollow extension plate is an arc-shaped structure, and the curvature of the hollow extension plate is consistent with the curvature of the splicing fixing frame;

[0023] The fixing frame is a flat fan-shaped chamber, in which the second fan-shaped fixing groove is provided, and a discharge port is provided on the side of the fan-shaped chamber away from the leak stopper, and the discharge port is connected to the second fixing groove; the feeding device is installed in the second fixing groove.

[0024] As a further improvement of the utility model, the feeding device includes a second hydraulic rod and a fixed insertion rod;

[0025] The fixed end of the second hydraulic rod is fixedly installed in the second fixed groove, the telescopic end of the second hydraulic rod extends toward the discharge port and the end thereof is fixedly connected to the fixed plug rod, and the fixed plug rod is connected to the feed port through a connecting hose;

[0026] The end of the fixed plug rod facing the discharge port is pointed, and a plurality of through holes are arranged on the inclined surface of the pointed end. The fixed plug rod can be extended toward the discharge port through the second hydraulic rod.

[0027] As a further improvement of the utility model, the hollow extension plate and the fixing frame are both buried underground, and the feed port is connected to an external cement grouting mechanism.

[0028] Compared with the prior art, the beneficial effects of the utility model are:

[0029] The utility model fixes a welding fixing ring in the middle of the leak stopper, and arranges a splicing fixing frame on the outer side thereof, and an oblique fixing plate and a steering pressure plate are respectively arranged on the top and bottom of each splicing fixing frame, and a telescopic mechanism is arranged between the oblique fixing plate and the steering pressure plate. The multiple telescopic mechanisms can respectively drive the steering pressure plate to rotate downward, thereby being able to effectively press the welding fixing ring and the leak stopper, and to effectively increase the pressure on the leak stopper;

[0030] The utility model can realize detachable splicing of multiple splicing fixing frames by setting a fixing mechanism, so that the steering pressure plate and the welding fixing ring are surrounded as a whole by the multiple splicing fixing frames, so as to facilitate the fixing;

[0031] In the utility model, a deep injection mechanism is arranged at the bottom of each splicing fixing frame, and the deep injection mechanism can be buried underground during installation to inject cement mortar into the ground, thereby fixing the splicing fixing frame as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the three-dimensional structure of a drilling plugging and pressurizing device disclosed in one embodiment of the utility model;

[0033] Figure 2 This is a schematic diagram of the internal structure of a drilling plugging and pressurizing device disclosed in one embodiment of the utility model;

[0034] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of part A;

[0035] Figure 4 for Figure 2 Schematic diagram of the enlarged structure of part B.

[0036] In the figure:

[0037] 1. Leak stopper; 2. Welding fixing ring; 3. Splicing fixing frame; 4. First fixing groove; 5. Electric push rod; 6. Fixing plate; 7. Magnetic plate; 8. Insertion groove; 9. Electromagnet; 10. Hinge; 11. Steering pressure plate; 12. Reinforcement plate; 13. Oblique fixing plate; 14. First hydraulic rod; 15. Hollow extension plate; 16. Fixing frame; 17. Feeding port; 18. Feeding valve; 19. Second fixing groove; 20. Connecting hose; 21. Second hydraulic rod; 22. Fixing plug rod; 23. Through hole. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment 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.

[0039] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0040] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] The utility model is further described in detail below in conjunction with the accompanying drawings:

[0042] like Figure 1-2 As shown, a drilling plugging and pressurizing device provided by the utility model includes a plugger 1, a splicing fixing frame 3, a telescopic mechanism, and a deep perfusion mechanism; wherein a welded fixing ring 2 is fixedly connected to the middle part of the plugger 1; a plurality of splicing fixing frames 3 are arranged in a ring shape on the outside of the plugger 1, and two adjacent splicing fixing frames 3 are detachably connected by a fixing mechanism; the top of each splicing fixing frame 3 is provided with an oblique fixing plate 13 inclined toward the direction of the plugger 1, and a steering pressure plate 11 is rotatably connected to the inner side of the bottom of each splicing fixing frame 3, and the free end of the steering pressure plate 11 rests on the upper surface of the welded fixing ring 2; the fixed ends of the plurality of telescopic mechanisms are respectively mounted on the bottom of the oblique fixing plate 13, and the telescopic ends of the plurality of telescopic mechanisms are respectively connected to the tops of the corresponding steering pressure plates 11, and the plurality of steering pressure plates 11 can press the welded fixing ring 2 through the telescopic mechanism; the bottom of each splicing fixing frame 3 is connected with a deep perfusion mechanism, and the deep perfusion mechanism is used to inject cement mortar into the ground to fix the splicing fixing frame 3.

[0043] In this embodiment, a fixing ring 2 is fixedly welded to the middle part of the leak stopper 1, and a fixing frame 3 is spliced ​​and arranged on the outer side thereof. An oblique fixing plate 13 and a steering pressure plate 11 are respectively arranged on the top and bottom of each spliced ​​fixing frame 3. A telescopic mechanism is arranged between the oblique fixing plate 13 and the steering pressure plate 11. The multiple telescopic mechanisms can respectively drive the steering pressure plate 11 to rotate downward, thereby achieving effective pressing of the welding fixing ring 2 and the leak stopper 1, and achieving effective pressurization of the leak stopper 1.

[0044] Specific:

[0045] like Figure 1-2 As shown, in the above embodiment, preferably, the splicing fixing frame 3 is an arc-shaped structure, and a plurality of splicing fixing frames 3 are spliced ​​on the outside of the leak stopper 1 through a fixing mechanism to form an annular fixing frame body.

[0046] like Figure 2 , Figure 4 As shown, in the above embodiment, preferably, the fixing mechanism includes a first fixing groove 4, an electric push rod 5, a fixing plate 6, a magnetic plate 7, an insertion groove 8 and an electromagnet 9, wherein the end surface of one end of the splicing fixing frame 3 is provided with a plurality of first fixing grooves 4 in the vertical direction, and the plurality of first fixing grooves 4 are formed concavely on the end surface of the splicing fixing frame 3; each first fixing groove 4 is telescopically installed in the corresponding first fixing groove 4 through the electric push rod 5, and during actual installation, the fixed end of the electric push rod 5 is fixedly installed on the inner wall of the first fixing groove, and the telescopic end of the electric push rod 5 is fixedly connected to the inner side of the fixing plate 6, and a magnetic plate 7 is fixedly installed on the outer side of the fixing plate 6, and the magnetic plate 7 can be extended out of the first fixing groove 4 through the electric push rod 5.

[0047] In the above embodiment, preferably, the end surface of the other end of the splicing fixing frame 3 is concave inward in the vertical direction to form a plurality of plug-in grooves 8 that cooperate with the first fixing groove 4, and each plug-in groove 8 is installed with an electromagnet 9 that cooperates with the magnetic attraction plate 7. When two adjacent splicing fixing frames 3 are spliced, the magnetic attraction plate 7 of one of the splicing fixing frames 3 is extended through the electric push rod 5 and is attracted to the electromagnet 9 in the plug-in groove 8 of the adjacent splicing fixing frame 3 to form an annular fixed frame body, so as to surround the multiple steering pressure plates 11 and the welding fixing ring 2 as a whole to facilitate fixation.

[0048] In the above embodiment, preferably, the inclined fixing plate 13 is fan-shaped, one end of the multiple inclined fixing plates 13 is respectively connected to the top of the corresponding splicing fixing frame 3, and the other ends of the multiple inclined fixing plates 13 are all inclined downward toward the leak plugger 1, and the multiple inclined fixing plates 13 are spliced ​​around the leak plugger 1 into a concave disc shape.

[0049] In the above embodiment, preferably, the steering pressure plate 11 is fan-shaped, one end of the plurality of steering pressure plates 11 is rotatably connected to the inner side of the bottom of the corresponding splicing fixed frame 3 through a hinge 10, and the other ends of the plurality of steering pressure plates 11 are all placed on the upper surface of the welded fixing ring 2; and the plurality of steering pressure plates 11 are spliced ​​into a disc shape around the welded fixing ring 2, and a reinforcing plate 12 is fixedly installed on the upper surface of each steering pressure plate 11, and the shape of the reinforcing plate 12 is consistent with the shape of the steering pressure plate 11; the fixed ends of the plurality of telescopic mechanisms are respectively installed at the bottom of the oblique fixed plate 13, and the telescopic ends of the plurality of telescopic mechanisms are respectively connected to the corresponding reinforcing plates 12.

[0050] In the above embodiment, preferably, the telescopic mechanism includes a first hydraulic rod 14; the fixed ends of the multiple first hydraulic rods 14 are respectively installed at the bottom of the corresponding oblique fixed plate 13, and the telescopic ends of the multiple first hydraulic rods 14 are respectively connected to the corresponding reinforcement plate 12, and the multiple steering pressure plates 11 can press the welded fixing ring 2 through the telescopic action of the multiple first hydraulic rods 14.

[0051] During actual installation, a plurality of first hydraulic rods 14 are arranged in sequence from the outside to the inside at the bottom of each oblique fixed plate 13, and the plurality of first hydraulic rods 14 are arranged in the vertical direction; the specifications of the plurality of first hydraulic rods 14 can be selected according to actual needs to ensure that when the telescopic ends of the plurality of first hydraulic rods 14 are extended downward, the plurality of steering pressure plates 11 can simultaneously press the welding fixing ring 2 downward to achieve effective pressurization of the leak stopper 1 and the welding fixing ring 2.

[0052] like Figure 3 As shown, in the above embodiment, preferably, the deep perfusion mechanism includes a hollow extension plate 15, a fixed frame 16, a feed port 17, a feed valve 18, a second fixed groove 19, a connecting hose 20, a second hydraulic rod 21, a fixed plug rod 22 and a through hole 23; wherein, the top of the hollow extension plate 15 is fixedly installed on the bottom of the corresponding splicing fixed frame 3, the bottom end of the hollow extension plate 15 is connected to the fixed frame 16, and the top of the hollow extension plate 15 is fixedly connected with the feed port 17 on the side away from the plugger 1; a second fixed groove 19 is provided inside the fixed frame 16, and a discharge port 17 is provided on the side of the fixed frame 16 away from the plugger 1, and a feeding device is installed in the second fixed groove 19, and the feeding device passes through the hollow extension plate 15 through the connecting hose 20 to communicate with the feed port 17, and the feeding device is used to inject cement mortar into the ground to fix the splicing fixed frame 3.

[0053] In the above embodiment, preferably, the hollow extension plate 15 is an arc-shaped structure, and the curvature of the hollow extension plate 15 is consistent with the curvature of the splicing fixing frame 3; the fixing frame 16 is a flat fan-shaped chamber, and a fan-shaped second fixing groove 19 is provided in the fan-shaped chamber, and a discharge port is provided on the side of the fan-shaped chamber away from the leak stopper 1, and the discharge port is connected to the second fixed groove 19; at least one feeding device is installed in the second fixed groove 19.

[0054] In the above embodiment, preferably, the feeding device includes a second hydraulic rod 21 and a fixed plug rod 22; the fixed end of the second hydraulic rod 21 is fixedly installed in the second fixed groove 19, the telescopic end of the second hydraulic rod 21 extends toward the discharge port and its end is fixedly connected to the fixed plug rod 22, and the fixed plug rod 22 is connected to the feed port 17 through the connecting hose 20; the end of the fixed plug rod 22 facing the discharge port is pointed, and a plurality of through holes 23 are provided on the pointed inclined surface, and the fixed plug rod 22 can be extended toward the discharge port through the second hydraulic rod 21.

[0055] In the above embodiment, preferably, the fixed rod 22 can slide in the second fixed groove 19 inside the fixed frame 16 through the second hydraulic rod 21. In this embodiment, there are four fixed frames 16, and the four fixed frames 16 are equidistantly distributed at the bottom of the splicing fixed frame 3.

[0056] In the above embodiment, preferably, a feed valve 18 is installed at the feed port 17 on each hollow extension plate 15. During actual installation, the hollow extension plate 15 and the fixed frame 16 are buried underground, and the feed port 17 is connected to the external cement grouting position. The external cement mortar can be connected through the set feed valve 18, so that after the fixed frame 16 and the hollow extension plate 15 are buried underground, cement mortar is injected into the ground through the second hydraulic rod 21 and the fixed plug rod 22 to fix the spliced ​​fixed frame 3 as a whole.

[0057] The method of using this embodiment is as follows:

[0058] 1) Before use, complete the installation and fixation of the welded fixing ring 2 of the leak stopper 1, and complete the installation of multiple splicing fixing frames 3, oblique fixing plates 13, steering pressure plates 11, first hydraulic rods 14, reinforcement plates 12, and deep perfusion mechanisms on the outside;

[0059] 2) bury the fixed frame 16 and the hollow extension plate 15 underground to complete the installation of the deep injection mechanism;

[0060] 4) When in use, the plurality of first hydraulic rods 14 are started, and the plurality of steering pressure plates 11 are pushed downward by the plurality of first hydraulic rods 14 to complete the pressing of the welding fixing ring 2 and the plugging device 1, thereby achieving effective pressurization of the plugging device;

[0061] 5) Activate the feed valve 18 to connect the external cement mortar. After the fixing frame 16 and the hollow extension plate 15 are buried underground, start the second hydraulic rod 21 to drive the fixing rod 22 to inject cement mortar into the ground to fix the splicing fixing frame 3 as a whole.

[0062] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A drilling plugging and pressurizing device, characterized in that: include: A leak stopper, wherein a welding fixing ring is fixedly connected to the middle of the leak stopper; A splicing fixing frame, wherein a plurality of the splicing fixing frames are arranged in a ring shape on the outside of the leak stopper, and two adjacent splicing fixing frames are detachably connected through a fixing mechanism; the top of each splicing fixing frame is provided with an oblique fixing plate inclined toward the leak stopper, and the inner side of the bottom of each splicing fixing frame is rotatably connected with a steering pressure plate, and the free end of the steering pressure plate rests on the upper surface of the welding fixing ring; A telescopic mechanism, wherein the fixed ends of the plurality of telescopic mechanisms are respectively mounted on the bottom of the oblique fixed plate, and the telescopic ends of the plurality of telescopic mechanisms are respectively connected to the top of the corresponding steering pressure plate, and the plurality of steering pressure plates can press the welding fixing ring through the telescopic mechanism; A deep-layer grouting mechanism is connected to the bottom of each splicing and fixing frame, and is used to inject cement mortar into the ground to fix the splicing and fixing frame.

2. The drilling plugging and pressurizing device according to claim 1, characterized in that: The splicing fixing frame is an arc-shaped structure, and a plurality of the splicing fixing frames are spliced ​​together through the fixing mechanism to form an annular fixing frame body.

3. The drilling plugging and pressurizing device according to claim 2 is characterized in that: The fixing mechanism includes a magnetic attraction plate and an electromagnet; The end surface of one end of the splicing fixing frame is provided with a plurality of first fixing grooves, and the plurality of magnetic suction plates are respectively telescopically installed in the corresponding first fixing grooves through electric push rods; the end surface of the other end of the splicing fixing frame is provided with an insertion groove matched with the first fixing groove; and the plurality of electromagnets are respectively installed in the corresponding insertion grooves; When two adjacent splicing and fixing frames are spliced ​​together, the magnetic attraction plate of one of the splicing and fixing frames is extended through the electric push rod and is attracted to the electromagnet in the insertion groove of the adjacent splicing and fixing frame.

4. The drilling plugging and pressurizing device according to claim 1, characterized in that: The oblique fixing plates are fan-shaped, one end of each of the oblique fixing plates is connected to the top of the corresponding splicing fixing frame, and the other ends of each of the oblique fixing plates are inclined downward toward the leak stopper; A plurality of the oblique fixing plates are spliced ​​around the leak stopper to form a concave disc shape.

5. The drilling plugging and pressurizing device according to claim 1, characterized in that: The steering pressure plate is fan-shaped, one end of the plurality of steering pressure plates is rotatably connected to the inner side of the bottom of the corresponding splicing fixing frame through a hinge, and the other ends of the plurality of steering pressure plates are all placed on the upper surface of the welding fixing ring; and the plurality of steering pressure plates are spliced ​​into a disc shape around the welding fixing ring, and a reinforcing plate is fixedly installed on the upper surface of each steering pressure plate, and the shape of the reinforcing plate is consistent with the shape of the steering pressure plate; The fixed ends of the multiple telescopic mechanisms are respectively installed on the bottom of the oblique fixed plate, and the telescopic ends of the multiple telescopic mechanisms are respectively connected to the corresponding reinforcing plates.

6. The drilling plugging and pressurizing device according to claim 5, characterized in that: The telescopic mechanism comprises a first hydraulic rod; The fixed ends of the multiple first hydraulic rods are respectively installed at the bottom of the corresponding oblique fixed plates, and the telescopic ends of the multiple first hydraulic rods are respectively connected to the corresponding reinforcing plates. The multiple steering pressure plates can press the welding fixing rings through the telescopic action of the multiple first hydraulic rods.

7. The drilling plugging and pressurizing device according to claim 1, characterized in that: The deep perfusion mechanism comprises a hollow extension plate and a fixing frame; The top of the hollow extension plate is fixedly mounted on the bottom of the corresponding splicing fixing frame, the bottom end of the hollow extension plate is connected to the fixing frame, and the top of the hollow extension plate is fixedly connected to a feed port on one side away from the leak stopper; A second fixing groove is provided inside the fixing frame, and a discharge port is provided on a side of the fixing frame away from the leak stopper. A feeding device is installed in the second fixing groove, and the feeding device is connected to the feeding port through the hollow extension plate via a connecting hose. The feeding device is used to inject cement mortar into the ground to fix the spliced ​​fixing frame.

8. The drilling plugging and pressurizing device according to claim 7, characterized in that: The hollow extension plate is an arc-shaped structure, and the curvature of the hollow extension plate is consistent with the curvature of the splicing fixing frame; The fixing frame is a flat fan-shaped chamber, in which the second fan-shaped fixing groove is provided, and a discharge port is provided on the side of the fan-shaped chamber away from the leak stopper, and the discharge port is connected to the second fixing groove; the feeding device is installed in the second fixing groove.

9. The drilling plugging and pressurizing device according to claim 8, characterized in that: The feeding device comprises a second hydraulic rod and a fixed insertion rod; The fixed end of the second hydraulic rod is fixedly installed in the second fixed groove, the telescopic end of the second hydraulic rod extends toward the discharge port and the end thereof is fixedly connected to the fixed plug rod, and the fixed plug rod is connected to the feed port through a connecting hose; The end of the fixed plug rod facing the discharge port is pointed, and a plurality of through holes are arranged on the inclined surface of the pointed end. The fixed plug rod can be extended toward the discharge port through the second hydraulic rod.

10. The drilling plugging and pressurizing device according to claim 7, characterized in that: The hollow extension plate and the fixing frame are both buried underground, and the feed port is communicated with an external cement grouting mechanism.

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