Drilling blowout preventer for water exploration and drainage in coal mine

Abstract

The utility model discloses a drilling blowout preventer for coal mine water exploration and drainage, and relates to the technical field of coal mine water exploration and drainage. The device comprises a shell, a blowout prevention assembly is arranged at the bottom of the shell, a lifting seat is arranged in the shell, a motor is fixedly connected to the top of the lifting seat, the blowout prevention assembly comprises a protective cover, a sliding hole is formed in the center axis of the top of the protective cover, and a rotating rod is connected to the inner wall of the sliding hole in a sliding mode. The blowout prevention assembly is arranged, specifically, sprayed water flow can make contact with the first buffering ring and the second buffering ring, the two-time buffering effect is achieved, at the moment, the water flow flows in an S-shaped mode, along with continuous rising of the water flow, the water flow flows to the position above the intercepting ring through the intercepting ring, and at the moment, the impact force of the water flow is greatly weakened; and the water flow on the intercepting ring flows out through the water outlet, so that the spraying condition is avoided, and the damage to surrounding equipment and workers caused by the impact of the water flow is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal mine water exploration and drainage, in particular to a drilling blowout prevention device for coal mine water exploration and drainage. Background Art

[0002] Water exploration drills are mainly suitable for drilling gas emission holes, blasting coal holes and rock holes to implement measures to prevent and control coal and gas outbursts at mining faces. They can also be used to drill water exploration holes in small tunnel sections.

[0003] After the water exploration drill drills through the underground water flow, the water will be sprayed out by pressure. The existing water exploration drill does not have the function of preventing blowout, so the water flow will cause a certain degree of damage to the equipment when it is sprayed, resulting in economic losses and affecting the drilling work. At the same time, the sprayed water will also cause certain harm to the surrounding workers. Therefore, we proposed a drilling blowout prevention device for coal mine water exploration and drainage. Utility Model Content

[0004] The purpose of the utility model is to provide a drilling blowout prevention device for coal mine water exploration and drainage. By setting up a blowout prevention component, specifically the impact force of the water flow will be greatly weakened, and the water flow on the interception ring will flow out through the drain outlet without spraying, thereby avoiding the impact of the water flow to cause damage to surrounding equipment and personnel, and solving the problem that the existing water exploration drilling rigs do not have the function of blowout prevention, so that the water flow will cause a certain degree of damage to the equipment when spraying, resulting in economic losses.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a drilling blowout prevention device for coal mine water exploration and drainage, comprising a shell, a blowout prevention assembly is arranged at the bottom of the shell, a lifting seat is arranged inside the shell, a motor is fixedly connected to the top of the lifting seat, the blowout prevention assembly comprises a protective cover, a sliding hole is opened at the middle axis of the top of the protective cover, and a rotating rod is slidably connected to the inner wall of the sliding hole;

[0007] A fixing ring is fixedly connected to the top of the inner wall of the protective cover, a buffer ring 1 is fixedly connected to the outer surface of the fixing ring, a buffer ring 2 is fixedly connected to the inner wall of the protective cover, an interception ring is arranged above the buffer ring 2, a plurality of drain outlets are opened on the outer surface of the protective cover, and the plurality of drain outlets are arranged in a circular array with the rotating rod as the center, an adjustment ring is arranged on the outside of the protective cover, and by arranging a blowout prevention component, the impact force of the water flow will be greatly weakened, and the water flow on the interception ring will flow out through the drain outlet without spraying, thereby preventing the impact of the water flow from causing damage to surrounding equipment and personnel.

[0008] Furthermore, a connecting ring is fixedly connected to the bottom output end of the motor, a drill bit is fixedly connected to the bottom of the rotating rod, support blocks are fixedly connected to the left and right sides of the inner wall of the shell, hydraulic cylinders are fixedly connected to the bottoms of the two support blocks, and the top output ends of the two hydraulic cylinders are fixedly connected to the bottom of the lifting seat. When the hydraulic cylinder is started and drives the lifting seat to move downward, the motor and the connecting ring move downward together, and the rotating rod drives the drill bit to press downward to increase the drilling depth.

[0009] Furthermore, a fixing frame is fixedly connected to the top of the adjusting ring, and a plurality of limit blocks are fixedly connected to the outer surface of the adjusting ring. The limit blocks are arranged in a circular array with the protective cover as the center. The parts contained in the limit blocks are the same. A slide groove is provided inside the limit block, and a stabilizing column is slidably connected to the inner wall of the slide groove. The bottom of the stabilizing column is fixedly connected to the bottom surface of the protective cover. The size of the drain outlet can be adjusted by moving the adjusting ring. When the impact force of the water flow is large, the opening of the drain outlet can be reduced to reduce the water flow rate. When the impact force is small, the opening of the drain outlet can be increased to increase the water flow rate. This can be regulated according to different needs so that the water flow can be discharged more quickly.

[0010] Furthermore, a threaded groove begins to be formed inside the fixing frame, a threaded rod is threadedly connected to the inner wall of the threaded groove, a turning handle is fixedly connected to the top of the threaded rod, a limiting ring is rotatably connected to the bottom of the threaded rod, and the bottom of the limiting ring is fixedly connected to the top of the protective cover. The limiting ring is used to limit the threaded rod so that the threaded rod can rotate in place. When the threaded rod rotates, it will drive the adjusting ring to move upward or downward through the fixing frame.

[0011] Furthermore, the inner surface of the intercepting ring is fixedly connected to the outer surface of the fixing ring, the outer surface of the intercepting ring is fixedly connected to the inner wall of the protective cover, the inner wall of the adjusting ring is in contact with the outer surface of the protective cover, the inner wall of the adjusting ring is in contact with the outer surface of the protective cover, the drain outlet can be sealed, and the intercepting ring is used to intercept larger sediment in the water flow to reduce the damage caused by water jetting.

[0012] Furthermore, a receiving hole is provided on the top of the shell, the motor is located at the center of the receiving hole, a positioning groove is provided on the bottom of the connecting ring, and insertion holes are provided inside the connecting ring and the rotating rod. Positioning blocks are fixedly connected to the front and back of the rotating rod, and the top of the rotating rod and the top of the positioning block are both plugged into the positioning groove provided on the bottom of the connecting ring. Bolts are plugged into the inner wall of the insertion hole, and the bolts respectively penetrate the connecting ring and the rotating rod and extend to the outside. The positioning groove is used to position the rotating rod and the positioning block, so that after the rotating rod and the connecting ring are connected, the bolts can be smoothly plugged into the rotating rod and the connecting ring, which is convenient for installation.

[0013] The utility model has the following beneficial effects:

[0014] 1. The utility model sets a blowout prevention component, specifically, the sprayed water will contact the buffer ring 1 and the buffer ring 2 respectively, thereby playing a double buffering role. At this time, the water flows in an S-shaped manner. As the water flow continues to rise, the water flows through the interception ring to the top of the interception ring. At this time, the impact force of the water flow is greatly weakened, and the water flow on the interception ring will flow out through the drain port without spraying, thereby avoiding damage to surrounding equipment and personnel caused by the impact of the water flow.

[0015] 2. The utility model is capable of adjusting the size of the drain outlet by setting an adjustment ring, specifically by moving the adjustment ring. When the impact force of the water flow is large, the opening of the drain outlet can be reduced to reduce the water flow rate. When the impact force is small, the opening of the drain outlet can be increased to increase the water flow rate. Thus, the utility model can be regulated according to different needs, so that the water flow can be discharged more quickly and the surrounding equipment and staff can be protected to the greatest extent.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings required for describing the embodiment will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the protective cover of the utility model;

[0020] Figure 3 For this utility model Figure 2 A is a schematic diagram of the enlarged structure of the middle part;

[0021] Figure 4 This is a schematic diagram of the overall structure of the adjustment ring of the utility model;

[0022] Figure 5 The figure is a schematic diagram of the bottom structure of the utility model lifting seat.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Shell; 11. Lifting seat; 111. Motor; 112. Connecting ring; 21. Bolt; 113. Turn rod; 31. Positioning block; 114. Drill bit; 115. Support block; 116. Hydraulic cylinder; 12. Blowout prevention assembly; 121. Protective cover; 122. Fixing ring; 221. Buffer ring 1; 123. Intercepting ring; 124. Buffer ring 2; 125. Drain port; 13. Adjusting ring; 131. Fixing frame; 132. Limiting block; 133. Stabilizing column; 134. Threaded rod; 135. Turning handle; 136. Limiting ring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in 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.

[0026] See also Figure 1-5 As shown, the utility model is a drilling blowout prevention device for coal mine water exploration and drainage, comprising a shell 1, a blowout prevention assembly 12 is arranged at the bottom of the shell 1, a lifting seat 11 is arranged inside the shell 1, a motor 111 is fixedly connected to the top of the lifting seat 11, and the blowout prevention assembly 12 comprises a protective cover 121, a sliding hole is opened at the central axis of the top of the protective cover 121, and a rotating rod 113 is slidably connected to the inner wall of the sliding hole;

[0027] A fixing ring 122 is fixedly connected to the top of the inner wall of the protective cover 121, a buffer ring 121 is fixedly connected to the outer surface of the fixing ring 122, a buffer ring 124 is fixedly connected to the inner wall of the protective cover 121, an interception ring 123 is arranged above the buffer ring 124, a plurality of drain outlets 125 are opened on the outer surface of the protective cover 121, and the plurality of drain outlets 125 are arranged in a circular array with the rotating rod 113 as the center, and an adjustment ring 13 is arranged on the outside of the protective cover 121. By setting the anti-blowout component 12, specifically, the sprayed water flow will contact the buffer ring 1 221 and the buffer ring 2 124 respectively, thereby playing a double buffering role. At this time, the water flow flows in an S-shaped manner. As the water flow continues to rise, the water flow flows through the interception ring 123 to the top of the interception ring 123. At this time, the impact force of the water flow is greatly weakened, and the water flow on the interception ring 123 will flow out through the drain outlet 125, and no spraying will occur, thereby avoiding the impact of the water flow to cause damage to surrounding equipment and personnel.

[0028] A connecting ring 112 is fixedly connected to the bottom output end of the motor 111, a drill bit 114 is fixedly connected to the bottom of the rotating rod 113, support blocks 115 are fixedly connected to the left and right sides of the inner wall of the shell 1, and hydraulic cylinders 116 are fixedly connected to the bottom of the two support blocks 115. The top output ends of the two hydraulic cylinders 116 are fixedly connected to the bottom of the lifting seat 11.

[0029] A fixing frame 131 is fixedly connected to the top of the adjusting ring 13, and a plurality of limit blocks 132 are fixedly connected to the outer surface of the adjusting ring 13. The limit blocks 132 are arranged in a circular array with the protective cover 121 as the center. The parts contained in the limit blocks 132 are the same. A slide groove is provided inside the limit block 132, and a stabilizing column 133 is slidably connected to the inner wall of the slide groove. The bottom of the stabilizing column 133 is fixedly connected to the bottom surface of the protective cover 121. By setting the adjusting ring 13, specifically by moving the adjusting ring 13, the size of the drain outlet 125 can be adjusted. When the impact force of the water flow is large, the opening of the drain outlet 125 can be reduced to reduce the water flow rate. When the impact force is small, the opening of the drain outlet 125 can be increased to increase the water flow rate. Therefore, regulation can be performed according to different needs, so that the water flow can be discharged more quickly and the surrounding equipment and staff can be protected to the greatest extent.

[0030] A threaded groove is formed inside the fixing frame 131 , a threaded rod 134 is threadedly connected to the inner wall of the threaded groove, a turning handle 135 is fixedly connected to the top of the threaded rod 134 , a limiting ring 136 is rotatably connected to the bottom of the threaded rod 134 , and the bottom of the limiting ring 136 is fixedly connected to the top of the protective cover 121 .

[0031] The inner ring surface of the interception ring 123 is fixedly connected to the outer surface of the fixing ring 122 , the outer ring surface of the interception ring 123 is fixedly connected to the inner wall of the protective cover 121 , and the inner wall of the adjustment ring 13 contacts the outer surface of the protective cover 121 .

[0032] A receiving hole is provided at the top of the housing 1 , the motor 111 is located at the center of the receiving hole, a positioning groove is provided at the bottom of the connecting ring 112 , and plug holes are provided inside the connecting ring 112 and the rotating rod 113 .

[0033] The front and back sides of the rotating rod 113 are fixedly connected with positioning blocks 31 , and the top of the rotating rod 113 and the top of the positioning block 31 are plugged into the positioning grooves provided at the bottom of the connecting ring 112 .

[0034] A bolt 21 is inserted into the inner wall of the insertion hole. The bolt 21 passes through the connecting ring 112 and the rotating rod 113 respectively and extends to the outside.

[0035] A specific application of this embodiment is:

[0036] When in use, the device is placed at the position where a hole needs to be drilled, and then the rotating rod 113 and the drill bit 114 are inserted into the protective cover 121, and the rotating rod 113 is plugged into the fixing ring 122, and then the top of the rotating rod 113 is plugged into the bottom of the connecting ring 112, so that the positioning block 31 enters the positioning groove inside the connecting ring 112, thereby positioning the rotating rod 113, and then the bolt 21 is plugged into the connecting ring 112 and the rotating rod 113, and then the nut is installed to fix the connecting ring 112 and the rotating rod 113, and then the motor 111 is started to drive the connecting ring 112 to rotate, and the connecting ring 112 The drill bit 114 is driven to rotate by the rotating rod 113 to perform drilling work. At the same time, the hydraulic cylinder 116 is started to drive the lifting seat 11 to move downward, and the motor 111 and the connecting ring 112 move downward together. The rotating rod 113 drives the drill bit 114 to press downward to increase the drilling depth. After the water flow is drilled out, the water flow will be sprayed into the protective cover 121. The sprayed water flow will first contact with the buffer ring 1 221 to perform the first buffering to reduce the impact force of the water flow. The buffered water flow will flow upward and then contact with the buffer ring 2 124, thereby playing a second buffering role. At this time, the water flow is The water flows in an S-shaped manner. As the water flow continues to rise, the water flows through the interception ring 123 and flows to the top of the interception ring 123. The larger sediment remaining in the water flow will be intercepted at the bottom of the interception ring 123. At this time, the impact force of the water flow is greatly weakened, and the water flow on the interception ring 123 will flow out through the drain port 125 without spraying. The large amount of sediment intercepted by the interception ring 123 can prevent the impact of the water flow from causing damage to the surrounding equipment and staff. The staff rotates the handle 135 to drive the threaded rod 134 to rotate on the limit ring 136, and the fixed frame 1 31 will move upward or downward, and drive the adjusting ring 13 to move together. The adjusting ring 13 slides on the stabilizing column 133 through the limit block 132, which can make the adjusting ring 13 more stable when moving. The size of the drain outlet 125 can be adjusted by moving the adjusting ring 13. When the impact force of the water flow is large, the opening of the drain outlet 125 can be reduced to reduce the water flow rate. When the impact force is small, the opening of the drain outlet 125 can be increased to increase the water flow rate. Therefore, it is possible to adjust and control according to different needs, so that the water flow can be discharged more quickly and the surrounding equipment and staff can be protected to the greatest extent.

[0037] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0038] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A borehole blowout prevention device for coal mine water exploration and drainage, comprising a housing (1), a blowout prevention assembly (12) being arranged at the bottom of the housing (1), a lifting seat (11) being arranged inside the housing (1), a motor (111) being fixedly connected to the top of the lifting seat (11), characterized in that: The blowout prevention assembly (12) comprises a protective cover (121), a sliding hole is provided at the central axis of the top of the protective cover (121), and a rotating rod (113) is slidably connected to the inner wall of the sliding hole; A fixing ring (122) is fixedly connected to the top of the inner wall of the protective cover (121); a buffer ring 1 (221) is fixedly connected to the outer surface of the fixing ring (122); a buffer ring 2 (124) is fixedly connected to the inner wall of the protective cover (121); an interception ring (123) is arranged above the buffer ring 2 (124); a plurality of drainage openings (125) are opened on the outer surface of the protective cover (121); the plurality of drainage openings (125) are arranged in a circular array with the rotating rod (113) as the center; and an adjustment ring (13) is arranged on the outer side of the protective cover (121).

2. A drilling blowout prevention device for coal mine water exploration and drainage according to claim 1, characterized in that: The bottom output end of the motor (111) is fixedly connected to a connecting ring (112), the bottom of the rotating rod (113) is fixedly connected to a drill bit (114), the left and right sides of the inner wall of the housing (1) are fixedly connected to support blocks (115), the bottoms of the two support blocks (115) are fixedly connected to hydraulic cylinders (116), and the top output ends of the two hydraulic cylinders (116) are fixedly connected to the bottom of the lifting seat (11).

3. A drilling blowout prevention device for coal mine water exploration and drainage according to claim 2, characterized in that: The top of the adjusting ring (13) is fixedly connected to a fixing frame (131), and the outer surface of the adjusting ring (13) is fixedly connected to a plurality of limit blocks (132), the plurality of limit blocks (132) are arranged in a circular array with the protective cover (121) as the center, the plurality of limit blocks (132) contain the same parts, a sliding groove is provided inside the limit block (132), a stabilizing column (133) is slidably connected to the inner wall of the sliding groove, and the bottom of the stabilizing column (133) is fixedly connected to the bottom surface of the protective cover (121).

4. A drilling blowout prevention device for coal mine water exploration and drainage according to claim 3, characterized in that: A thread groove is formed inside the fixing frame (131), a threaded rod (134) is threadedly connected to the inner wall of the thread groove, a turning handle (135) is fixedly connected to the top of the threaded rod (134), a limiting ring (136) is rotatably connected to the bottom of the threaded rod (134), and the bottom of the limiting ring (136) is fixedly connected to the top of the protective cover (121).

5. A drilling blowout prevention device for coal mine water exploration and drainage according to claim 4, characterized in that: The inner ring surface of the interception ring (123) is fixedly connected to the outer surface of the fixing ring (122), the outer ring surface of the interception ring (123) is fixedly connected to the inner wall of the protective cover (121), and the inner wall of the adjustment ring (13) is in contact with the outer surface of the protective cover (121).

6. A drilling blowout prevention device for coal mine water exploration and drainage according to claim 5, characterized in that: The housing (1) has a receiving hole at the top, the motor (111) is located at the center of the receiving hole, the connecting ring (112) has a positioning groove at the bottom, and the connecting ring (112) and the rotating rod (113) have insertion holes inside.

7. A drilling blowout prevention device for coal mine water exploration and drainage according to claim 5, characterized in that: The front and back sides of the rotating rod (113) are fixedly connected with positioning blocks (31), and the top of the rotating rod (113) and the top of the positioning block (31) are plugged into positioning grooves provided at the bottom of the connecting ring (112).

8. A drilling blowout prevention device for coal mine water exploration and drainage according to claim 6, characterized in that: A bolt (21) is inserted into the inner wall of the insertion hole, and the bolt (21) passes through the connecting ring (112) and the rotating rod (113) respectively and extends to the outside.

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