Rapid plugging and water stopping device for mining orifice pipe

Abstract

The utility model discloses a quick plugging and water stopping device for a mining orifice pipe, which belongs to the technical field of tunnel grouting hole plugging and comprises a mining grouting pipe, a plugging and water stopping assembly comprises a top cover disc, an orifice upper plugging block and an I-shaped plugging column, and an elastic sealing and water stopping assembly is arranged on the peripheral side of the I-shaped plugging column. The top cover disc enables the hole opening upper plugging block and the I-shaped plugging column to be arranged in a hole opening of the mine grouting pipe, the elastic sealing water stopping assembly is elastically connected to the inner wall of the hole opening of the mine grouting pipe in an abutting mode on the peripheral side of the I-shaped plugging column, and a damping buffering assembly is further arranged between the I-shaped plugging column and the hole opening upper plugging block. The damping and buffering assembly is used for conducting buffering and damping on the plugging and water stopping assembly through impacted water flow in the mine grouting pipe. The plugging device can be directly inserted into a drill hole and quickly fixed without waiting for material curing or cast-in-place, and the purposes of remarkably shortening construction time and improving operation efficiency are achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of tunnel grouting hole plugging, especially to a mine orifice pipe fast plugging water stop device. BACKGROUND

[0002] In mine engineering, tunneling and underground space construction, grouting operation is an important means to prevent groundwater seepage and reinforce surrounding rock. In this process, the grouting orifice, as a slurry injection channel, often faces the risk of high-pressure groundwater infiltration. To ensure construction safety and engineering quality, the orifice usually needs to be effectively plugged after grouting to prevent subsequent water seepage, leakage or even water inrush accidents. Therefore, a mine orifice pipe fast plugging water stop device capable of fast installation, efficient sealing and strong impact resistance is in great demand. Such devices are widely used in complex conditions such as high water pressure strata, deep well grouting and mine rescue, and are one of the key equipment to ensure the safety and efficiency of underground engineering construction.

[0003] Currently, the common orifice plugging method in mine grouting operation is to use cement mortar or rapid-setting materials for on-site grouting, relying on natural solidification to form a sealing layer. Such materials need a long time to achieve sufficient strength and sealing performance, which seriously affects the overall construction progress, and may even lead to disaster expansion and endanger personnel safety in water inrush emergency treatment. UTILITY MODEL CONTENTS

[0004] The utility model aims to provide a mine orifice pipe fast plugging water stop device to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a mine orifice pipe fast plugging water stop device, comprising a mine grouting pipe, a plugging water stop assembly is arranged at the top end of the mine grouting pipe, the plugging water stop assembly comprises a top cover disc arranged above the top surface of the mine grouting pipe, an orifice upper plugging block integrally connected to the center position of the bottom surface of the top cover disc, and an I-shaped plugging column arranged below the orifice upper plugging block, an elastic sealing water stop assembly is arranged on the circumferential side of the I-shaped plugging column, the top cover disc places the orifice upper plugging block and the I-shaped plugging column in the orifice of the mine grouting pipe, so that the outer walls of the I-shaped plugging column and the orifice upper plugging block abut on the inner wall of the orifice of the mine grouting pipe, the elastic sealing water stop assembly elastically abuts on the inner wall of the orifice of the mine grouting pipe on the circumferential side of the I-shaped plugging column, so that the elastic sealing water stop assembly blocks the water flow, a shock absorption assembly is further arranged between the I-shaped plugging column and the orifice upper plugging block, and the shock absorption assembly is used to buffer and absorb the shock of the water flow impacting upwards on the plugging water stop assembly in the mine grouting pipe.

[0006] Preferably, the I-shaped plugging column comprises a connecting plugging block and a hole lower plugging block arranged symmetrically up and down, and an intermediate column body integrally connected between the center positions of the connecting plugging block and the hole lower plugging block.

[0007] Preferably, a plurality of threaded holes are arranged in the annular array on the top surface of the connecting plugging block.

[0008] Preferably, a plurality of locking screw rods are longitudinally connected through the annular array on the top surface of the top cover disc, and each locking screw rod longitudinally penetrates the hole upper plugging block and extends to the outside of the hole upper plugging block.

[0009] Preferably, an outer threaded end of each locking screw rod extending to the lower side of the hole upper plugging block is threadedly connected with the threaded hole.

[0010] Preferably, the elastic sealing water stop assembly comprises a water stop silica gel sleeve wound around the circumferential side of the intermediate column body and a sealing silica gel ring sleeved around the circumferential side of the connecting plugging block, and the outer walls of the water stop silica gel sleeve and the sealing silica gel ring are elastically abutted on the inner wall of the hole of the mine grouting pipe.

[0011] Preferably, the outer wall of the water stop silica gel sleeve has a shearing end portion, by which the water stop silica gel sleeve is unfolded and sleeved around the circumferential side of the intermediate column body.

[0012] Preferably, the shock absorption and buffering assembly comprises a spring element sleeved around the end of each locking screw rod extending to the outside of the hole upper plugging block and an air cushion spring fixedly installed at the center position of the top surface of the connecting plugging block, and the top end of the air cushion spring is elastically abutted on the bottom surface of the hole upper plugging block.

[0013] Preferably, the upper and lower ends of each spring element are elastically abutted on the opposite side surfaces of the hole upper plugging block and the connecting plugging block, respectively.

[0014] Preferably, mounting ear plates are symmetrically welded on the circumferential outer wall of the top cover disc, each mounting ear plate is longitudinally connected with an anchor rod, and the anchor rod is fixedly extended in the inner wall of the mine.

[0015] Compared with the prior art, the technical effects and advantages of the utility model are as follows:

[0016] The mine hole pipe rapid plugging and water stopping device is characterized in that the top cover disc, the hole upper plugging block and the I-shaped plugging column are sequentially combined and integrally connected to the top end of the mine grouting pipe, thereby forming a compact and easy-to-assemble plugging assembly, the plugging device can be directly inserted into the drill hole and quickly fixed, without waiting for the material to solidify or on-site pouring, the construction time is significantly shortened, the operation efficiency is improved, and the device is suitable for mine emergency rescue and high-frequency plugging scenes.

[0017] By setting the elastic sealing water stop assembly on the side of the I-shaped plugging column, dynamic self-adaptive sealing effect is generated, efficient water stopping under different hole diameters and geological conditions is achieved, and the technical effect of preventing groundwater seepage is achieved.

[0018] By setting the shock absorption and buffering assembly, elastic buffering effect is generated, structure protection under high-pressure water flow impact is achieved, and the technical effects of prolonging service life and improving stability are achieved. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0020] Figure 1 It is a structural schematic diagram of the present application;

[0021] Figure 2 It is a connection structure schematic diagram of the shock absorption and buffering assembly and the I-shaped plugging column of the present application;

[0022] Figure 3 It is a mounting structure schematic diagram of the spring part of the present application;

[0023] Figure 4 It is a mounting structure schematic diagram of the air cushion spring of the present application;

[0024] Figure 5 It is a disassembled state structure schematic diagram of the water stopping silica gel sleeve of the present application.

[0025] EXPLANATION OF REFERENCE NUMERALS:

[0026] In the figure: 1, mine grouting pipe; 2, plugging and water stopping assembly; 3, top cover disc; 4, mounting ear plate; 5, anchor rod; 6, upper plugging block of hole; 7, water stopping silica gel sleeve; 8, sealing silica gel ring; 9, shock absorption and buffering assembly; 10, I-shaped plugging column; 11, locking screw part; 12, outer threaded end; 13, spring part; 14, threaded hole; 15, air cushion spring; 16, lower plugging block of hole; 17, shearing end; 18, middle column body; 19, connecting plugging block. DETAILED DESCRIPTION

[0027] In the following description, numerous specific details are set forth to provide a more thorough understanding of the present application. However, it will be apparent to one of skill in the art upon

[0028] Unless the context clearly requires otherwise, throughout the description, the terms "comprise," "comprising," "include," "including," and the like are to be construed in an inclusive sense, as

[0029] The embodiment provides a mine orifice pipe rapid plugging water stop device as shown in the figure. Figures 1 to 5 The embodiment provides a mine orifice pipe rapid plugging water stop device as shown in the figure. The top cover disc 3 is arranged on the top of the orifice upper plugging block 6 and the H-shaped plugging column 10 in the orifice of the mine grouting pipe 1, so that the outer wall of the H-shaped plugging column 10 and the orifice upper plugging block 6 abuts on the inner wall of the orifice of the mine grouting pipe 1, and the elastic sealing water stop assembly elastically abuts on the inner wall of the orifice of the mine grouting pipe 1 on the periphery of the H-shaped plugging column 10, so that the elastic sealing water stop assembly blocks the water flow, and the damping buffer assembly 9 is arranged between the H-shaped plugging column 10 and the orifice upper plugging block 6, and is used for buffering and damping the water flow impacting on the plugging water stop assembly 2 in the mine grouting pipe 1.

[0030] In the embodiment, the H-shaped plugging column 10 comprises the connecting plugging block 19 and the orifice lower plugging block 16 which are symmetrically arranged upwards and downwards, and the middle column body 18 which is integrally connected between the center positions of the connecting plugging block 19 and the orifice lower plugging block 16.

[0031] In the embodiment, a plurality of threaded holes 14 are arranged in the annular array on the top surface of the connecting plugging block 19.

[0032] In the embodiment, a plurality of locking screw rods 11 are longitudinally connected in the annular array on the top surface of the top cover disc 3, each of the locking screw rods 11 longitudinally penetrates the orifice upper plugging block 6 and extends to the outside of the orifice upper plugging block 6.

[0033] In the embodiment, each of the locking screw rods 11 is provided with an external thread end 12 which is threadedly connected with the threaded hole 14 at one end extending to the lower side of the orifice upper plugging block 6.

[0034] In this embodiment, the elastic sealing water stop assembly includes a water stop silica gel sleeve 7 wrapped around the middle column 18 and a sealing silica gel ring 8 wrapped around the connecting sealing block 19. The outer wall of the water stop silica gel sleeve 7 and the sealing silica gel ring 8 elastically abuts the inner wall of the hole of the mine grouting pipe 1.

[0035] In this embodiment, the outer wall of the water stop silica gel sleeve 7 has a shearing end 17. The water stop silica gel sleeve 7 is unfolded and wrapped around the middle column 18 through the shearing end 17. Through the design of the shearing end 17, the unfolded installation characteristic is generated, the convenient assembly and tight wrapping of the water stop silica gel sleeve 7 are realized, and the technical effect of enhancing the sealing performance is achieved.

[0036] In this embodiment, the shock absorbing and buffering assembly 9 includes a spring member 13 wrapped around each locking screw member 11 extending to the outer side of the hole sealing block 6 and an air buffer spring 15 fixedly installed at the center of the top surface of the connecting sealing block 19. The top end of the air buffer spring 15 elastically abuts the bottom surface of the hole sealing block 6. Through the setting of the shock absorbing and buffering assembly, the elastic buffering effect is generated, the structural protection under the impact of high-pressure water flow is realized, and the technical effects of prolonging the service life and improving the stability are achieved.

[0037] In this embodiment, the upper and lower ends of each spring member 13 elastically abut the opposite sides of the hole sealing block 6 and the connecting sealing block 19, respectively.

[0038] In this embodiment, the outer wall of the top cover disc 3 is symmetrically welded with mounting ear plates 4. Each mounting ear plate 4 is longitudinally connected with an anchor rod 5, and the anchor rod 5 is fixedly extended in the inner wall of the mine. Through the setting of the mounting ear plate 4 and the anchor rod 5, the external fixed support effect is generated, the overall stability in the high water pressure environment is realized, and the technical effect of preventing the device from slipping or tilting is achieved.

[0039] Working principle

[0040] The mine hole pipe rapid sealing water stop device is inserted into the drill hole to be sealed, ensures its stable verticality, integrally connects the hole sealing block 6 with the top cover disc 3, sequentially installs the I-shaped sealing column 10 below the hole sealing block 6, ensures that the water stop silica gel sleeve 7 and the sealing silica gel ring 8 in the elastic sealing water stop assembly have been correctly wrapped and wrapped, wraps the entire sealing water stop assembly 2 at the hole position of the top end of the mine grouting pipe 1, embeds it inside the drill hole, and tightly abuts the hole wall with the outer wall of each sealing block.

[0041] The water-stopping silica gel sleeve 7 and the sealing silica gel ring 8 have good elasticity and expansion performance. Under the action of external pressure or self-gravity, these materials will automatically expand outward, tightly fit the inner wall of the hole of the mine grouting pipe 1, and the design of the shearing end 17 enables the water-stopping silica gel sleeve 7 to better wrap the middle column 18 after expansion, thereby improving the sealing effect. This elastic contact forms the first effective waterproof barrier to prevent underground water from seeping out of the hole.

[0042] The plurality of locking screw members 11 penetrating through the annular array on the top of the cover disc 3 pass through the hole to the upper blocking block 6. The bottom of the locking screw member 11 is provided with an externally threaded end 12 which can be screwed with the threaded hole 14 connected to the top of the blocking block 19. The compression and fixation between the upper and lower blocking blocks are achieved by rotating the locking screw member 11, further compressing the elastic sealing water-stopping assembly and enhancing the sealing performance. Meanwhile, the spring member 13 is sleeved on the locking screw member 11 to play a pre-tightening and buffering role, avoiding damage caused by excessive tightening.

[0043] When there is a high-pressure water flow upwardly impacting in the mine grouting pipe 1, it will first act on the hole upper blocking block 6. The air buffer spring 15 in the shock absorption and buffering assembly 9 and the spring member 13 begin to play a role. The air buffer spring 15 is located at the top center of the connecting blocking block 19, and its top end abuts against the bottom surface of the hole upper blocking block 6 to form a flexible support. The spring member 13 is distributed on the locking screw member 11, and its two ends abut against the hole upper blocking block 6 and the connecting blocking block 19 respectively. The above two springs jointly absorb the water flow impact energy to prevent the blocking assembly from loosening and falling off due to vibration or impact, thereby ensuring long-term stable operation.

[0044] An anchor rod 5 is penetrated through each ear plate 4 welded on the side of the cover disc 3. The anchor rod 5 is driven into the rock wall of the mine tunnel to fix the entire device. This fixing mode not only improves the overall stability of the device, but also enhances the pullout resistance and shear resistance, and is especially suitable for complex environments such as deep wells and high water pressure.

[0045] It should be noted that, in the present document, relational terms such as one and another and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying that the entities or actions are different in any way. In addition, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the statement "includes one... limited element" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the stated element or a limitation.

[0046] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick sealing device for sealing a borehole in a mine, comprising a mine grouting pipe (1), characterized in that: The top end of the mine grouting pipe (1) is provided with a plugging and water stopping assembly (2), the plugging and water stopping assembly (2) comprises a top cover disc (3) arranged above the top surface of the mine grouting pipe (1), an orifice upper plugging block (6) integrally connected to the center position of the bottom surface of the top cover disc (3), and an I-shaped plugging column (10) arranged below the orifice upper plugging block (6), the peripheral side of the I-shaped plugging column (10) is provided with an elastic sealing and water stopping assembly, the top cover disc (3) places the orifice upper plugging block (6) and the I-shaped plugging column (10) in the orifice of the mine grouting pipe (1), so that the outer wall of the I-shaped plugging column (10) and the orifice upper plugging block (6) abuts on the inner wall of the orifice of the mine grouting pipe (1), the elastic sealing and water stopping assembly elastically abuts on the inner wall of the orifice of the mine grouting pipe (1) on the peripheral side of the I-shaped plugging column (10), so that the elastic sealing and water stopping assembly blocks the water flow, and a shock absorbing and buffering assembly (9) is further arranged between the I-shaped plugging column (10) and the orifice upper plugging block (6), the shock absorbing and buffering assembly (9) is used for buffering and damping the plugging and water stopping assembly (2) impacted by the water flow in the mine grouting pipe (1).

2. A quick plugging and sealing device for borehole tubings used in mining as claimed in claim 1, wherein: The I-shaped plugging column (10) comprises a connecting plugging block (19) and an orifice lower plugging block (16) arranged symmetrically upward and downward, and an intermediate column body (18) integrally connected between the center positions of the connecting plugging block (19) and the orifice lower plugging block (16).

3. A quick plugging and sealing device for borehole tubings in mining according to claim 2, characterized in that: A plurality of threaded holes (14) are arranged in the annular array on the top surface of the connecting plugging block (19).

4. A quick plugging and sealing device for borehole tubings used in mining according to claim 3, characterized in that: A plurality of locking screw rods (11) are longitudinally connected in the annular array on the top surface of the top cover disc (3), each locking screw rod (11) longitudinally penetrates the orifice upper plugging block (6) and extends to the outside of the orifice upper plugging block (6).

5. A quick plugging and sealing device for a borehole tubular according to claim 4, characterised in that: An outer threaded end (12) is arranged at one end of each locking screw rod (11) extending to the lower side of the orifice upper plugging block (6), and the outer threaded end (12) is threadedly connected with the threaded hole (14).

6. The quick plugging and sealing device for mine borehole pipes according to claim 2, characterized in that: The elastic sealing and water stopping assembly comprises a water stopping silica gel sleeve (7) wound around the peripheral side of the intermediate column body (18) and a sealing silica gel ring (8) wound around the peripheral side of the connecting plugging block (19), and the outer walls of the water stopping silica gel sleeve (7) and the sealing silica gel ring (8) elastically abut on the inner wall of the orifice of the mine grouting pipe (1).

7. A quick plugging and sealing device for borehole tubings used in mining according to claim 6, characterized in that: The outer wall of the water stopping silica gel sleeve (7) has a shearing end (17), the water stopping silica gel sleeve (7) is unfolded and wound around the peripheral side of the intermediate column body (18) through the shearing end (17).

8. The quick plugging and sealing device for mine borehole pipe according to claim 4, characterized in that: The shock absorbing and buffering assembly (9) comprises a spring member (13) wound around one end of each locking screw rod (11) extending to the outside of the orifice upper plugging block (6) and an air buffer spring (15) fixedly installed at the center position of the top surface of the connecting plugging block (19), and the top end of the air buffer spring (15) elastically abuts on the bottom surface of the orifice upper plugging block (6) upward.

9. A quick plugging and sealing device for borehole tubings used in mining according to claim 8, characterized in that: The upper and lower ends of each spring member (13) elastically abut on the opposite side surfaces of the orifice upper plugging block (6) and the connecting plugging block (19), respectively.

10. The quick plugging and sealing device for mine borehole pipes according to claim 1, characterized in that: The peripheral outer wall of the top cover disc (3) is symmetrically welded with mounting ear plates (4), each of which is longitudinally connected with an anchor rod (5), and the anchor rod (5) is extended and fixed in the inner wall of the mine.

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