Water stopping and efficiency improving device for coal mine drill rod

Abstract

The utility model provides a coal mine drill rod water stopping and efficiency improving device, which relates to the technical field of coal mine drill rods and comprises water injectors mounted at two ends of a coal mine hollow drill rod and communicating grooves formed in the water injectors, connecting grooves are formed in the water injectors and positioned at the bottom ends of the communicating grooves, and connecting components are arranged in the connecting grooves. A folding plate is arranged at the top of the connecting assembly, a connecting block is arranged at the joint of the folding plate and the connecting assembly and hinged to the folding plate, and a first connecting part and a second connecting part are arranged at the two ends of the water injector respectively. Due to the arrangement of the connecting assembly and the folding plate, when the folding plate is located above the connecting assembly, pressure can be applied to the folding plate through the gravity of water liquid, then water flows in a one-way mode when the coal mine hollow drill rod and the water injector are constructed up and down, and the purposes of water stopping and efficiency improving are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal mine drill rod technical field, especially relate to a coal mine drill rod water stop efficiency device. BACKGROUND

[0002] Coal mine is the area that human extracts coal resources in the coal-rich mining area, and is generally divided into underground coal mine and open coal mine. When the coal seam is far from the ground surface, generally, the underground tunnel is excavated to mine coal, which is the underground coal mine. When the distance between the coal seam and the ground surface is very close, generally, the ground surface soil layer is directly stripped to excavate coal;

[0003] Coal drill rod is a kind of high-efficiency twist drill rod used for coal seam drilling spiral drill, which is generally made of high-quality carbon steel and is suitable for use in coal drilling.

[0004] When the hollow drill rod is used for drilling construction in the coal mine, the rock powder and coal powder drilled in the drilling construction process are flushed out of the hole by injecting water in the hole, so that the drilling purpose is achieved. However, during the replacement of the drill rod, the water in the original hole will flow out with the replacement of the drill rod, which causes that after the replacement of the drill rod, the hole needs to be filled with water again before drilling, resulting in the waste of drilling efficiency.

[0005] Therefore, the coal mine drill rod water stop efficiency device is provided to meet the needs. UTILITY MODEL CONTENTS

[0006] The technical problem to be solved by the utility model is to provide a coal mine drill rod water stop efficiency device to solve the technical problem that during the replacement of the drill rod, the water in the original hole will flow out with the replacement of the drill rod, which causes that after the replacement of the drill rod, the hole needs to be filled with water again before drilling, resulting in the waste of drilling efficiency.

[0007] To solve the above technical problems, the utility model provides the following technical scheme:

[0008] A coal mine drill rod water stop efficiency device, comprising a water injector installed at both ends of a coal mine hollow drill rod, a communication groove formed in the water injector, a connecting groove formed at the bottom end of the communication groove in the water injector, a connecting assembly arranged in the connecting groove, a folding plate arranged at the top of the connecting assembly, a connecting block arranged at the connection between the folding plate and the connecting assembly and hinged to the folding plate, and a connecting part one and a connecting part two arranged at both ends of the water injector respectively.

[0009] The water injector is connected with both ends of the coal mine hollow drill rod through the connecting part one and the connecting part two, and when the coal mine hollow drill rod is connected with the water injector for use, the folding plate is always located at the top of the connecting assembly, and the communication groove in the water injector and the middle position of the coal mine hollow drill rod form a closed space.

[0010] Preferably, the connecting assembly comprises a connecting piece connected with the connecting groove through threads, and a through groove one opened at the bottom end of the connecting piece, the top of the connecting piece is provided with a through groove two which is communicated with the through groove one, the top of the connecting piece is fixedly connected with the connecting block, and a reserved groove is opened below the connecting block at the connecting position of the hinge plate and the connecting block.

[0011] Preferably, the diameter of the through groove one is larger than that of the through groove two.

[0012] Preferably, the bottom end of the hinge plate is fixedly connected with a sealing ring one, the top of the connecting piece is fixedly connected with a sealing ring two, and the outer diameter of the sealing ring two is same with the inner diameter of the sealing ring one.

[0013] Preferably, the bottom end of the sealing ring one is provided with an arc surface, and the inner circle of the sealing ring two is provided with a plurality of water outlets.

[0014] Preferably, the connecting part one comprises a protruding block with a hollow middle part and external threads arranged outside the protruding block, and the bottom end of the protruding block is fixedly connected with the top end of the water injector.

[0015] Preferably, a strip groove is opened outside the protruding block.

[0016] Preferably, the connecting part two comprises a recessed groove arranged inside the bottom end of the water injector and internal threads arranged inside the recessed groove, and the internal threads are matched with the external threads.

[0017] Compared with the prior art, the utility model has at least the following beneficial effects:

[0018] In the above scheme, when the hinge plate is located above the connecting assembly, the water liquid can exert pressure on the hinge plate through its own gravity, and when the hollow drill rod and the water injector in the coal mine are constructed up and down, the water realizes one-way flow, and the purposes of water stopping and efficiency improving are met.

[0019] Through the arrangement of the through groove one, the through groove two, the water outlet, the sealing ring one and the sealing ring two, the water liquid flow rate can be increased, the hinge plate can be conveniently opened, the contact area between the connecting piece and the hinge plate can be increased, and the sealing property between the connecting piece and the hinge plate can be increased.

[0020] Through the arrangement of the connecting part one and the connecting part two, the water injector can be conveniently connected with the hollow drill rod in the coal mine, and the short connection effect is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0021] The drawings constituting part of this specification show embodiments of the present disclosure and, together with the specification, further serve to explain the principles of the present disclosure and to enable a person skilled in the relevant art to implement and use the present disclosure.

[0022] Figure 1 It is the whole structure schematic view of the utility model;

[0023] Figure 2 It is the inside structure schematic view of the water injector of the utility model;

[0024] Figure 3 It is the bottom structure schematic view of the connecting assembly of the utility model;

[0025] Figure 4 It is the top structure schematic view of the connecting piece of the utility model;

[0026] Figure 5 It is the bottom structure schematic view of the folding plate of the utility model.

[0027] Reference signs

[0028] 1, water injector;2, communication groove;3, connecting groove;4, connecting assembly;401, connecting piece;402, through groove one;403, through groove two;5, folding plate;6, connecting block;7, connecting part one;701, protruding block;702, external thread;703, strip groove;8, connecting part two;801, recessed groove;802, internal thread;9, reserved groove;10, sealing ring one;11, sealing ring two. DETAILED DESCRIPTION

[0029] The coal mine drill rod water stopping and efficiency improving device provided by the utility model will be described in detail below in combination with the drawings and specific embodiments. Meanwhile, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and other alternative ways can also be adopted by those skilled in the art to implement some known technologies, and the drawings are only used to describe the embodiments more specifically, and are not intended to specifically limit the utility model.

[0030] As Figure 1 , Figure 2 and Figure 3 described, the embodiment of the utility model provides a coal mine drill rod water stopping and efficiency improving device, the water injector 1 of the utility model as a whole includes connecting part one 7, connecting part two 8, connecting assembly 4 and folding plate 5 part. As can be seen from the drawing, the protruding block 701 in the connecting part one 7 and the recessed groove 801 inside the connecting part two 8 are conical as a whole, so that the connecting part one 7 and the connecting part two 8 can be used in cooperation, and at the same time, the water injector 1 can be connected with the coal mine hollow drill rod through the connecting part one 7 and the connecting part two 8, and the cooperation of the connecting assembly 4 and the folding plate 5, the subsequent connecting groove 3 and the communication groove 2 and the closed space formed by the hollow position of the coal mine inject water, when the folding plate 5 is located above the connecting assembly 4, the water liquid can exert pressure on the folding plate 5 through its own gravity, and then when the coal mine hollow drill rod and the water injector 1 are constructed upward and downward, the water realizes one-way flow, which meets the purpose of water stopping and efficiency improving.

[0031] Figure 4 And Figure 5 The internal structure of the connecting assembly 4 and the external structure of the folding plate 5 are shown. The connecting assembly 4 is externally threaded and can be connected and matched with the connecting groove 3. At the same time, the diameter of the through groove one 402 is greater than that of the through groove two 403. When the subsequent water liquid passes through the through groove one 402 and enters the internal connecting groove 2 through the through groove two 403, the water liquid flow rate can be increased, thereby making the folding plate 5 easy to open. At the same time, the connecting piece 401 is located at the bottom of the reserved groove 9 of the folding plate 5 and the connecting block 6. When the folding plate 5 and the connecting block 6 are connected as the center of the circle, the problem of being stuck is avoided.

[0032] The sealing ring one 10 provided at the bottom end of the folding plate 5 is used in cooperation with the sealing ring two 11 at the top of the connecting piece 401 to increase the contact area between the connecting piece 401 and the folding plate 5. The shape of the bottom of the sealing ring one 10 is preferably a circular arc surface, and can also be an inclined surface and a right angle surface.

[0033] As shown in Figure 2 And Figure 3 The water injector 1 is connected and used at both ends with the connecting part one 7 and the connecting part two 8.

[0034] Among them, the connecting part one 7 is internally composed of a protruding block 701, a strip groove 703 and an external thread 702. The number of strip grooves 703 is preferably two under the premise of meeting the rigid structure, and can also be three and four, etc., so that the production cost of the connecting part one 7 is reduced.

[0035] At the same time, the connecting part two 8 includes a recessed groove 801 and an internal thread 802. The recessed groove 801, the internal thread 802, the external thread 702 and the protruding block 701 are used in cooperation with the recessed groove 801, the internal thread 802, the external thread 702 and the protruding block 701 at both ends of the hollow drill rod in the coal mine to achieve the effect of short connection.

[0036] As shown in Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 And Figure 5As shown, when the coal mine drilling construction is carried out, the coal mine hollow drill rod is in a vertical state, and the upper and lower ends or the lower end of the coal mine hollow drill rod are connected with the connecting part one 7 or the connecting part two 8 in the water injector 1 for use, and then the water injector 1 at the bottom end of the coal mine hollow drill rod is subjected to water injection treatment, at this time, the water can enter the through groove one 402 and the through groove two 403 inside through the recessed groove 801, the impact of the through groove one 402 and the through groove two 403 is increased, and the water outlet hole in the sealing ring two 11 increases the contact area between the water and the folding plate 5, so that the water can conveniently impact the folding plate 5, the folding plate 5 will swing around the hinge point with the connecting block 6 as the center, so that the water enters the communication groove 2 and the coal mine hollow drill rod, and when the water is not injected subsequently, the water exerts pressure on the folding plate 5 through its own gravity, so that the folding plate 5 returns to the initial state, and at the same time, the folding plate 5 will drive the sealing ring one 10 and the sealing ring two 11 to contact, so as to increase the contact area between the folding plate 5 and the connecting piece 401, and when the coal mine hollow drill rod is replaced subsequently, only the replaced coal mine hollow drill rod needs to be injected with water, so that the whole is not needed to be injected with water, the device is used between the coal mine hollow drill rods, plays a short connection role, and realizes one-way water flow in up-down construction, so as to meet the purposes of water stopping and efficiency improving.

Claims

1. A coal mine drill pipe water stopping efficiency device, comprising a water injector (1) installed at both ends of a hollow drill pipe in a coal mine, and a communication groove (2) formed in the water injector (1), characterized in that, The connecting groove (3) is internally provided with a connecting assembly (4), the top of the connecting assembly (4) is provided with a folding plate (5), the connecting part between the folding plate (5) and the connecting assembly (4) is provided with a connecting block (6) and the connecting block (6) is hinged with the folding plate (5), the water injector (1) is respectively provided with a connecting part one (7) and a connecting part two (8) at both ends; The water injector (1) is connected with both ends of the coal mine hollow drill rod through the connecting part one (7) and the connecting part two (8), when the coal mine hollow drill rod is connected with the water injector (1) for use, the folding plate (5) is always located at the top of the connecting assembly (4), and the internal communicating groove (2) of the water injector (1) and the middle position of the coal mine hollow drill rod form a closed space.

2. The water stopping device for coal mine drill pipe according to claim 1, characterized in that, The connecting assembly (4) comprises a connecting piece (401) connected with the connecting groove (3) through threads and a through groove one (402) formed at the bottom of the connecting piece (401), the top of the connecting piece (401) is provided with a through groove two (403) which is communicated with the through groove one (402), the top of the connecting piece (401) is fixedly connected with the connecting block (6), and a reserved groove (9) is formed at the top of the connecting piece (401) below the connecting position of the folding plate (5) and the connecting block (6).

3. The water stopping device for coal mine drill pipe according to claim 2, characterized in that, The diameter of the through groove one (402) is larger than that of the through groove two (403).

4. The water stopping device for coal mine drill pipe according to claim 2, characterized in that, The bottom of the folding plate (5) is fixedly connected with a sealing ring one (10), the top of the connecting piece (401) is fixedly connected with a sealing ring two (11), and the outer diameter of the sealing ring two (11) is same as the inner diameter of the sealing ring one (10).

5. The water stopping device for coal mine drill pipe according to claim 4, characterized in that, The bottom of the sealing ring one (10) is provided with an arc surface, and the inner circle of the sealing ring two (11) is provided with a plurality of water outlets.

6. The water stopping device for coal mine drill pipe according to claim 1, characterized in that, The connecting part one (7) comprises a protruding block (701) with a hollow middle part and an external thread (702) arranged outside the protruding block (701), and the bottom of the protruding block (701) is fixedly connected with the top of the water injector (1).

7. The water stopping device for coal mine drill pipe according to claim 6, characterized in that, The protruding block (701) is provided with a strip groove (703) outside.

8. The water stopping device for coal mine drill pipe according to claim 6, characterized in that, The connecting part two (8) comprises a recessed groove (801) arranged inside the bottom of the water injector (1) and an internal thread (802) arranged inside the recessed groove (801), and the internal thread (802) is matched with the external thread (702).

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