Drilling water gushing plugging device

Abstract

The utility model discloses a drilling water gushing plugging device which comprises a main lead screw, the lower end of the main lead screw is connected with a base plate playing a supporting role in an embedded mode, and the upper end of the main lead screw is connected with a third nut in a threaded mode. The upper end of the base plate makes contact with the lower end of the rubber expansion assembly, the rubber expansion assembly is connected to the main lead screw in a nested mode, the main lead screw is sleeved with the hollow lead screw, the lower end of the main lead screw is in threaded connection with a first nut, the main lead screw comprises a main body and a first antirust layer, and a protection structure is arranged on the upper side of the base plate. Wherein the protective structure comprises a connecting disc, a limiting strip, a connecting lug, a mounting groove, a waterproof spring, a limiting block and a protective cylinder; and a second nut on the lower side of the third nut is in threaded connection with the upper end of the hollow lead screw. According to the drilling water gushing plugging device, rapid assembling for plugging is facilitated, the upper end of the main lead screw can be protected conveniently, and meanwhile damage caused by corrosion of the main lead screw is prevented.

Description

Technical Field

[0001] This utility model relates to the technical field of borehole water inflow sealing devices, specifically a borehole water inflow sealing device. Background Technology

[0002] In metal and non-metal mines, wireline coring is often used in underground drilling operations. During geological drilling operations, water inrush may occur in the borehole. After the borehole is completed, timely or temporary sealing of the borehole to stop the water is one of the six major quality elements of drilling operations, and it needs to be accomplished through sealing devices.

[0003] However, a utility model patent with authorization announcement number CN217176564U discloses a device for sealing water inflow in a foundation borehole, including a steel casing, a grouting pipe, a tee joint, a main ball valve switch, a pressure relief valve switch, a sand-filled weir structure, a first drainage pipe, and a base pad layer. A borehole is drilled at the water inflow point, and a sand-filled weir structure is set around the water inflow point. A steel casing is installed inside the borehole, with its top protruding above the ground. Grouting pipes are arranged around the outer perimeter of the steel casing, used to inject two types of grout into the borehole. A tee joint is connected to the top of the steel casing, and a main ball valve switch and a pressure relief valve switch are installed at the tee joint. The first drainage pipe is connected to the top of the tee joint and extends to the outside of the foundation pit. A base pad layer is set where the steel casing and grouting pipe protrude above the ground, and the base pad layer is located below the foundation pit floor. This utility model can ensure effective sealing of the water inflow point and prevent the formation of new water inflow points.

[0004] The existing technical solutions described above have the following drawbacks: the sealing method uses high-pressure cement grout injection. However, for boreholes requiring temporary sealing, this method is cumbersome, has high transportation and material costs, high labor intensity, and low sealing quality. Furthermore, the upper end of the main screw is exposed to the outside environment and is easily damaged by impacts. At the same time, the lower end of the main screw comes into contact with water in the borehole, making it prone to corrosion and damage. Therefore, we propose a borehole water inflow sealing device to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a borehole water inrush sealing device to solve the problems mentioned in the background art, such as the inconvenience of quick assembly for sealing, the inconvenience of protecting the upper end of the main screw, and the easy corrosion and damage of the main screw.

[0006] To achieve the above object, the utility model provides the following technical scheme: a borehole water gushing plugging device, include: main lead screw, the lower end of main lead screw is nested connection has the backing pad of playing the supporting role and the upper end of main lead screw is screwed and has the third nut;

[0007] Further comprising:

[0008] The upper end of the backing plate is in contact with the lower end of the rubber expansion assembly, the rubber expansion assembly is nested on the main lead screw, the hollow lead screw is sleeved on the main lead screw, the lower end of the main lead screw is screwed with the first nut, the main lead screw comprises a main body and a first rust-proof layer, the upper side of the backing plate is provided with a protection structure, wherein the protection structure comprises a connecting disc, a limiting strip, a connecting lug, a mounting groove, a waterproof spring, a limiting block and a protection cylinder;

[0009] The second nut on the lower side of the third nut is screwed on the upper end of the hollow lead screw.

[0010] Preferably, the outer wall of the main body is coated with the first rust-proof layer, the outer wall of the first rust-proof layer is coated with the second rust-proof layer, and the lengths of the main body, the first rust-proof layer and the second rust-proof layer are equal.

[0011] Preferably, the longitudinal section of the hollow lead screw is in the shape of a "T", and the middle and lower end of the hollow lead screw is nested with a nylon vertebral sleeve, wherein the upper end of the nylon vertebral sleeve is clamped and connected inside the lower end of the expansion sleeve.

[0012] Preferably, the expansion sleeve is nested on the middle and upper end of the hollow lead screw, and the diameters of the backing plate, the rubber expansion assembly, the nylon vertebral sleeve, the expansion sleeve and the bottom end of the hollow lead screw are equal, wherein the expansion sleeve is connected inside the borehole body.

[0013] Preferably, the upper end of the expansion sleeve is embedded with the connecting disc, and the upper end of the connecting disc is fixedly connected with the limiting strip symmetrically left and right.

[0014] Preferably, the limiting strip is clamped and connected inside the connecting lug, and the connecting lug is fixedly connected on the outer wall of the lower end of the protection cylinder symmetrically left and right, and the protection cylinder is nested on the upper end of the expansion sleeve.

[0015] Preferably, the outer end of the limiting strip is provided with the mounting groove inside, the waterproof spring is fixedly connected inside the mounting groove, and the outer end of the waterproof spring is fixedly connected with the limiting block.

[0016] Preferably, the limiting block is slidingly connected inside the mounting groove, and the sum of the thickness of the limiting block and the minimum extension length of the waterproof spring is equal to the depth of the mounting groove.

[0017] Compared with the prior art, the beneficial effects of this utility model are: the drilling water inrush sealing device is easy to assemble and seal quickly, and it is also convenient to protect the upper end of the main screw, while preventing the main screw from being damaged by corrosion.

[0018] 1. It is equipped with a main lead screw and a hollow lead screw. The lower end of the main lead screw is threaded with a first nut, and the second nut is threaded with the upper end of the hollow lead screw, so that the pad, rubber expansion component, and hollow lead screw are nested in the lower end of the main lead screw.

[0019] The nylon cone sleeve and expansion sleeve are nested and connected to the hollow screw. The position of the expansion sleeve is limited by the second nut, and the position of the main screw is limited by the first nut and the third nut, which facilitates quick assembly into the sealing.

[0020] 2. It is equipped with a protective sleeve and a limiting strip. The limiting block is slidably connected inside the mounting groove, so that when the protective sleeve is nested in the upper end of the expansion sleeve, the limiting strip is engaged with the corresponding connecting lug.

[0021] The position of the limiting strip is limited by the limiting block, so that the upper end of the expansion sleeve and the main screw are both located inside the protective cylinder, thereby facilitating the protection of the upper end of the main screw.

[0022] 3. A first rust-proof layer and a second rust-proof layer are provided. The lengths of the main body, the first rust-proof layer, and the second rust-proof layer are all equal, so that the first rust-proof layer and the second rust-proof layer cover the outer wall of the main body, thereby preventing the main screw from being damaged by rust. Attached Figure Description

[0023] Figure 1 This is a frontal cross-sectional view of the present invention.

[0024] Figure 2 This is a schematic diagram of the main lead screw structure of this utility model;

[0025] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0026] Figure 4 This is a schematic diagram of the overall structure of the expansion sleeve and hollow screw connection of this utility model;

[0027] Figure 5 This is a schematic diagram of the overall structure of the connection between the connecting disc and the limiting strip of this utility model;

[0028] Figure 6 This is a schematic diagram of the overall structure of the connection between the main lead screw and the hollow lead screw of this utility model.

[0029] In the figure: 1, main lead screw; 101, main body; 102, first anti-rust layer; 103, second anti-rust layer; 2, backing plate; 3, first nut; 4, rubber expansion assembly; 5, nylon vertebral sheath; 6, expansion sleeve; 7, hollow lead screw; 8, second nut; 9, third nut; 10, drilled body; 11, connecting disc; 12, limiting strip; 13, connecting lug; 14, mounting groove; 15, waterproof spring; 16, limiting block; 17, protective cylinder. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] Please refer to Figures 1-6 The present application provides a technical solution: a drilling water gushing plugging device, comprising a main lead screw 1, a backing plate 2, a first nut 3, a rubber expansion assembly 4, a nylon vertebral sheath 5, an expansion sleeve 6, a hollow lead screw 7, a second nut 8, a third nut 9, a drilled body 10, a connecting disc 11, a limiting strip 12, a connecting lug 13, a mounting groove 14, a waterproof spring 15, a limiting block 16 and a protective cylinder 17.

[0032] Embodiment 1: The existing plugging method is to use high-pressure grouting of cement slurry, and the use of high-pressure grouting of cement slurry for temporary plugging of drill holes has the disadvantages of complicated process, high transportation and material cost, high labor intensity, and low quality of hole sealing. Therefore, the present embodiment solves the above problems by the following technical solutions, such as Figure 1 、 Figure 4 and Figure 6Since the rubber expansion assembly 4 is nested and connected on the main lead screw 1, the hollow lead screw 7 is sleeved on the main lead screw 1, the longitudinal section of the hollow lead screw 7 is in a "T" shape structure, the upper end of the nylon vertebra sleeve 5 is clamped and connected inside the lower end of the expansion sleeve 6, the diameter of the pad plate 2, the diameter of the rubber expansion assembly 4, the diameter of the nylon vertebra sleeve 5, the diameter of the expansion sleeve 6 and the diameter of the bottom end of the hollow lead screw 7 are all equal, so the first nut 3 is placed on the lower side of the main lead screw 1, the first nut 3 is screwed and connected on the lower end of the main lead screw 1 by rotating, the pad plate 2 is nested and connected on the main lead screw 1, the lower end of the pad plate 2 is in contact with the upper end of the first nut 3, the rubber expansion assembly 4 and the hollow lead screw 7 are nested and connected on the main lead screw 1 respectively, the lower end of the rubber expansion assembly 4 is in contact with the upper end of the pad plate 2, and the lower end of the hollow lead screw 7 is in contact with the upper end of the rubber expansion assembly 4, the nylon vertebra sleeve 5 is nested and connected on the hollow lead screw 7, so that the bottom end of the rubber expansion assembly 4 is in contact with the lower end of the hollow lead screw 7 which is in a "T" shape structure, the expansion sleeve 6 is nested and connected on the hollow lead screw 7, and the lower end of the expansion sleeve 6 is clamped and connected on the upper end of the nylon vertebra sleeve 5, the second nut 8 is penetrated and connected on the upper end of the main lead screw 1, and the third nut 9 is screwed and connected on the uppermost end of the main lead screw 1, so as to facilitate the rapid assembly into the plugging;

[0033] Embodiment 2: The upper end of the existing main lead screw 1 is exposed to the outside world and is easy to be collided, which causes damage, so the technical scheme is as follows in this embodiment, Figure 1 , Figure 3 and Figure 5Since the protection structure comprises the connecting disc 11, the limiting strip 12, the connecting lug 13, the mounting groove 14, the waterproof spring 15, the limiting block 16 and the protection cylinder 17, the upper end of the connecting disc 11 is fixedly connected with the limiting strip 12 symmetrically left and right, the limiting strip 12 is clamped and connected in the inside of the connecting lug 13, the protection cylinder 17 is nested and connected at the upper end of the expansion sleeve 6, the limiting block 16 is slidingly connected in the inside of the mounting groove 14, and the sum of the thickness of the limiting block 16 and the minimum extension length of the waterproof spring 15 is equal to the depth of the mounting groove 14, so that the assembled plugging device is placed in the inside of the drilling hole body 10, the second nut 8 is first rotated, at this time, the wide mouth of the expansion sleeve 6 is pressed against the vertebral surface of the nylon vertebral sleeve 5, the expansion sleeve 6 is expanded to be fixed on the hole wall of the drilling hole body 10 and is not easy to fall off, the third nut 9 is then rotated, at this time, the pad 2 and the base of the hollow lead screw 7 press the rubber expansion assembly 4 to be expanded and deformed so as to plug the water gushing from the drilling hole, after the plugging is completed, the lower end of the connecting disc 11 is attached to the upper end of the drilling hole body 10, the protection cylinder 17 is nested and connected at the upper end of the main lead screw 1 and the expansion sleeve 6, the limiting strips 12 symmetrically arranged left and right are clamped and connected in the connecting lug 13 at the corresponding positions, the waterproof spring 15 drives the limiting block 16 to slide outward in the inside of the mounting groove 14, the position of the limiting strip 12 on the connecting lug 13 is limited by the limiting block 16, so that the upper end of the main lead screw 1 is not directly exposed to the outside, when the protection cylinder 17 is disassembled, the limiting block 16 is pressed from the inside, the waterproof spring 15 is contracted until the limiting block 16 enters the inside of the mounting groove 14, so that the upper end of the main lead screw 1 is conveniently protected;

[0034] Embodiment 3: The lower end of the existing main lead screw 1 is in contact with water in the drilling hole, which causes the lower end of the main lead screw 1 to be easily corroded and damaged, therefore, in this embodiment, the following technical scheme is adopted, Figure 1 and Figure 2 Since the main body 101, the first rust-proof layer 102 and the second rust-proof layer 103 constitute the main lead screw 1, the lengths of the main body 101, the first rust-proof layer 102 and the second rust-proof layer 103 are equal, therefore, the first rust-proof layer 102 is an electroplated nickel film layer, the second rust-proof layer 103 is a paint phenolic resin paint layer, the first rust-proof layer 102 protects the main body 101, the second rust-proof layer 103 protects the first rust-proof layer 102, the first rust-proof layer 102 and the second rust-proof layer 103 double-protect the main body 101, so as to prevent the main lead screw 1 from being corroded and damaged, the above-mentioned electrical elements are all prior art and will not be described in detail here.

[0035] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0036] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement and the like within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A water inflow plugging device for a borehole, comprising: The main lead screw (1) is nested with the supporting base plate (2) at the lower end and is screwed with the third nut (9) at the upper end; It is characterized in that further comprising: The upper end of the base plate (2) is in contact with the lower end of the rubber expansion assembly (4), the rubber expansion assembly (4) is nested on the main lead screw (1), the hollow lead screw (7) is sleeved on the main lead screw (1), the lower end of the main lead screw (1) is screwed with the first nut (3), the main lead screw (1) comprises a main body (101) and a first rust-proof layer (102), the upper side of the base plate (2) is provided with a protection structure, wherein the protection structure comprises a connecting disc (11), a limiting strip (12), a connecting lug (13), a mounting groove (14), a waterproof spring (15), a limiting block (16) and a protection cylinder (17). The second nut (8) at the lower side of the third nut (9) is screwed at the upper end of the hollow lead screw (7).

2. The water inrush plugging device according to claim 1, characterized in that: The outer wall of the main body (101) is coated with the first rust-proof layer (102), the outer wall of the first rust-proof layer (102) is coated with the second rust-proof layer (103), and the lengths of the main body (101), the first rust-proof layer (102) and the second rust-proof layer (103) are equal.

3. The water inrush plugging device according to claim 1, characterized in that: The longitudinal section of the hollow lead screw (7) is in "T" shape structure, and the middle and lower end of the hollow lead screw (7) is nested with the nylon vertebral sleeve (5), wherein the upper end of the nylon vertebral sleeve (5) is clamped and connected inside the lower end of the expansion sleeve (6).

4. The water inrush plugging device according to claim 3, characterized in that: The expansion sleeve (6) is nested at the middle and upper end of the hollow lead screw (7), and the diameters of the base plate (2), the rubber expansion assembly (4), the nylon vertebral sleeve (5), the expansion sleeve (6) and the bottom end of the hollow lead screw (7) are equal, wherein the expansion sleeve (6) is connected inside the drilling body (10).

5. The water inrush plugging device according to claim 3, characterized in that: The upper end of the expansion sleeve (6) is embedded with the connecting disc (11), and the upper end of the connecting disc (11) is fixedly connected with the limiting strip (12) symmetrically left and right.

6. The water inrush plugging device according to claim 5, characterized in that: The limiting strip (12) is clamped and connected inside the connecting lug (13), and the connecting lug (13) is fixedly connected to the lower end of the outer wall of the protection cylinder (17) symmetrically left and right, and the protection cylinder (17) is nested at the upper end of the expansion sleeve (6).

7. The water inrush plugging device according to claim 6, characterized in that: The outer end of the limiting strip (12) is provided with the mounting groove (14) inside, the waterproof spring (15) is fixedly connected inside the mounting groove (14), and the outer end of the waterproof spring (15) is fixedly connected with the limiting block (16).

8. The water inrush plugging device according to claim 7, characterized in that: The limiting block (16) is slidingly connected inside the mounting groove (14), and the sum of the thickness of the limiting block (16) and the minimum extension length of the waterproof spring (15) is equal to the depth of the mounting groove (14).

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