Blowout prevention device of geological drill

Abstract

The utility model relates to the technical field of geological drills, and discloses a geological drill blowout preventer which comprises a fixing frame, the left end and the right end of the fixing frame are each provided with a round hole, the two round holes are each provided with an equal-strength anchor rod nut, an orifice disc is arranged at the bottom of the fixing frame, and a screw hole is formed in the orifice disc. Pushing rods are arranged in the two equal-strength anchor rod nuts in a penetrating mode, and the pushing rods are in threaded connection with the equal-strength anchor rod nuts. Two baffles are arranged in the fixing frame in a bilateral symmetry mode, the two baffles are in sliding connection with the fixing frame, the ends, located in the fixing frame, of the two pushing rods are rotationally connected with the baffles on the adjacent sides, and the ends, located outside the fixing frame, of the two pushing rods are connected with the pushing handles. According to the utility model, the problem of sudden increase of water quantity in the drill hole is solved, the blowout preventer can effectively prevent water in the drill hole from being sprayed out of the drill hole, and the construction safety is ensured; the blowout preventer is made of waste materials and is easy to manufacture, convenient to mount and dismount, easy to operate and good in blowout prevention effect.

Description

Technical Field

[0001] This utility model relates to the field of geological drilling technology, and in particular to a geological drilling blowout prevention device. Background Technology

[0002] Geological drilling is a technique that involves drilling holes into the ground at designed angles using drilling rigs and other equipment to retrieve rock cores or analyze the geological structure using testing instruments. Its main tasks include exploring underground resources, delineating soil and rock strata, obtaining hydrogeological data, and providing a basis for engineering geological evaluation.

[0003] During geological drilling, a sudden increase in water volume can easily cause water to gush out of the borehole, seriously affecting normal drilling operations and even causing safety accidents.

[0004] Therefore, those skilled in the art urgently need to develop a blowout prevention device for geological drilling. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a blowout prevention device for geological drilling.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a geological drilling blowout prevention device, comprising a fixed frame, with a circular hole at each of the left and right ends of the fixed frame, and an equal-strength anchor nut provided in each of the two circular holes; an orifice plate at the bottom of the fixed frame, with a screw hole on the orifice plate; a push rod penetrating through the interior of each of the two equal-strength anchor nuts, with a threaded groove on the push rod, and the push rod is threadedly connected to the equal-strength anchor nut; two baffles are symmetrically arranged on the left and right sides inside the fixed frame, and the two baffles are slidably connected to the fixed frame; one end of each push rod inside the fixed frame is rotatably connected to the baffle on the adjacent side; and one end of each push rod outside the fixed frame is connected to a push handle.

[0007] Preferably, each of the two baffles is provided with a rod sleeve, and each of the two rod sleeves is rotatably provided with a connecting rod, and each of the two connecting rods is fixedly connected to the push rod on the adjacent side.

[0008] Preferably, a first retaining ring and a second retaining ring are fitted on both connecting rods, and the first retaining ring and the second retaining ring are located on different sides of the rod sleeve.

[0009] Preferably, the two baffles are located on the same horizontal plane, and the adjacent sides of the two baffles are semi-circular structures, with the center directions of the two semi-circular structures located on adjacent sides.

[0010] Preferably, the fixing frame has a rectangular structure, with two guide rods above the two baffles. Both guide rods are arranged horizontally and are connected to the inner walls of the front and rear sides of the fixing frame.

[0011] Preferably, a support plate is provided between the two baffles and the orifice plate, and the number of support plates is two, and the support plates are connected to the inner walls of the front and rear sides of the fixing frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention solves the problem of sudden increases in water volume during drilling. The blowout preventer effectively prevents water from spraying out of the borehole, ensuring construction safety. It is made from recycled materials, is simple to manufacture, easy to install and disassemble, easy to operate, and has a good blowout prevention effect. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a top view of the structure of this utility model;

[0016] Figure 3 This is a bottom view of the structure of this utility model;

[0017] Figure 4 for Figure 2 Enlarged view of the structure at point A in the middle.

[0018] In the diagram: 1-fixed frame; 2-orifice plate; 21-screw hole; 3-equal strength anchor nut; 4-push rod; 5-push handle; 6-baffle; 7-guide rod; 8-support plate; 9-connecting rod; 10-first retaining ring; 11-rod sleeve; 12-second retaining ring. Detailed Implementation

[0019] The present invention will now be clearly described with reference to the accompanying drawings and specific embodiments. This description is merely for explaining the present invention and is not intended to limit it. Any modifications, equivalent substitutions, improvements, etc., made by those skilled in the art based on the embodiments of the present invention without inventive effort to obtain all other embodiments should be included within the protection scope of the present invention.

[0020] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 invention based on the specific circumstances.

[0022] Please see Figures 1-4 This utility model provides an embodiment: a geological drilling blowout prevention device, including a fixing frame 1, which is rectangular in structure. A round hole is opened at each of the left and right ends of the fixing frame 1, and an equal-strength anchor nut 3 is provided in each of the two round holes. An orifice plate 2 is provided at the bottom of the fixing frame 1, and a screw hole 21 is opened on the orifice plate 2. A push rod 4 is threaded through the interior of each of the two equal-strength anchor nuts 3, and a threaded groove is opened on the push rod 4. The push rod 4 is threadedly connected to the equal-strength anchor nut 3. Two baffles 6 are symmetrically arranged on the left and right sides inside the fixing frame 1, and the two baffles 6 are slidably connected to the fixing frame 1. One end of each push rod 4 inside the fixing frame 1 is rotatably connected to the baffle 6 on the adjacent side, and the other end of each push rod 4 outside the fixing frame 1 is connected to a push handle 5.

[0023] The fixing frame 1 is made of 40mm angle iron into a rectangular structure, 350mm long and 150mm wide. A φ25mm round hole is opened in the center of the width direction of the fixing frame, and an equal strength anchor nut 3 is welded to the opening of each round hole. A φ146mm hole plate 2 is welded to the bottom of the fixing frame 1 for connection and fixation with the drilling hole plate of the construction using screws.

[0024] Furthermore, each of the two baffles 6 is provided with a sleeve 11, and a connecting rod 9 is rotatably provided inside each of the two sleeves 11. The two connecting rods 9 are fixedly connected to the push rods 4 on the adjacent side. A first retaining ring 10 and a second retaining ring 12 are sleeved on each of the two connecting rods 9. The first retaining ring 10 and the second retaining ring 12 are located on different sides of the sleeve 11. The first retaining ring 10 and the second retaining ring 12 on the connecting rod 9 are fixedly connected to the connecting rod 9. The two baffles 6 are located on the same horizontal plane, and the adjacent side of the two baffles 6 is a semi-circular structure, and the center direction of the two semi-circular structures is located on the adjacent side.

[0025] The push rod 4 is threadedly connected to the equal-strength anchor nut 3. By rotating the push rod 4, the push rod 4 can rotate and move towards the center position. The push rod 4 drives the first retaining ring 10 and the second retaining ring 12 to rotate and move towards the center position together through the connecting rod 9. The connecting rod 9 is slidably connected to the rod sleeve 11. The first retaining ring 10 and the second retaining ring 12 limit the rod sleeve 11, thereby driving the baffle 6 to move.

[0026] Two drill hole baffles 6 are made from steel plates with a thickness of 8mm, a length of 100mm, and a width of 100mm. The corresponding surfaces of the baffles are cut into φ100mm semicircles. A 220mm long equal-strength anchor rod is welded to the other end as a push rod 4. 100mm long equal-strength anchor rods are added to both ends of the push rod 4 as push handles 5. By turning the push rod 4 by hand, the two blowout preventer steel plate semicircles (two baffles 6) are pushed to a position 20mm away from the drill rod. When the water volume in the drill hole increases and sprays out, the blowout preventer can effectively prevent the water in the drill hole from suddenly increasing and spraying out.

[0027] Furthermore, two guide rods 7 are provided above the two baffles 6. Both guide rods 7 are arranged horizontally and are connected to the inner walls of the front and rear sides of the fixing frame 1. There are two support plates 8 between the two baffles 6 and the orifice plate 2. The support plates 8 are connected to the inner walls of the front and rear sides of the fixing frame 1.

[0028] Two guide rods 7 and two support plates 8 are used to limit the baffle 6 and ensure that the baffle 6 slides horizontally.

[0029] The working principle of this utility model is as follows: When using this utility model, the operator connects and fixes the orifice plate 2 to the orifice plate of the construction drilling hole with screws, and manually turns the push rod 4 to push the two anti-blowout steel plate semicircular surfaces (two baffles 6) to a position 20mm away from the drill rod. When the water volume in the drill hole increases and sprays out from the drill hole, the anti-blowout device can effectively prevent the water in the drill hole from suddenly increasing and spraying out from the drill hole.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A blowout prevention device for geological drilling, characterized in that: The fixture includes a fixing frame (1), with a round hole at each of the left and right ends. Both round holes are provided with equal strength anchor nuts (3). The bottom of the fixing frame (1) is provided with a hole plate (2), and the hole plate (2) is provided with a screw hole (21). The interior of both equal strength anchor nuts (3) is provided with a push rod (4), and the push rod (4) is provided with a threaded groove. The push rod (4) is threadedly connected to the equal strength anchor nuts (3). The fixed frame (1) is symmetrically provided with two baffles (6) inside. The two baffles (6) are slidably connected to the fixed frame (1). One end of each of the two push rods (4) inside the fixed frame (1) is rotatably connected to the baffles (6) on the adjacent side. One end of each of the two push rods (4) outside the fixed frame (1) is connected to the push handle (5). Both baffles (6) are provided with rod sleeves (11), and both rod sleeves (11) are rotatably provided with connecting rods (9). Both connecting rods (9) are fixedly connected to the push rods (4) on the adjacent side. Both connecting rods (9) are provided with a first retaining ring (10) and a second retaining ring (12). The first retaining ring (10) and the second retaining ring (12) are located on different sides of the rod sleeves (11). The two baffles (6) are located on the same horizontal plane. The adjacent side of the two baffles (6) is a semi-circular structure, and the center direction of the two semi-circular structures is located on the adjacent side.

2. The geological drilling blowout prevention device according to claim 1, characterized in that: The fixing frame (1) is a rectangular structure. Two guide rods (7) are provided above the two baffles (6). Both guide rods (7) are arranged horizontally and are connected to the inner walls of the front and rear sides of the fixing frame (1).

3. The geological drilling blowout prevention device according to claim 2, characterized in that: A support plate (8) is provided between the two baffles (6) and the orifice plate (2). There are two support plates (8), and the support plates (8) are connected to the inner walls of the front and rear sides of the fixing frame (1).

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