Orifice pipe structure for drilling in underground pit
By designing the orifice pipe structure drilled in the underground pit, the problems of orifice collapse and water influx in the mine are solved, and construction safety and efficiency are improved, and are suitable for deep underground drilling.
Patent Information
- Application Number
- CN202422463286.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-10-12
AI Technical Summary
There are problems of orifice collapse and uncontrollable water infiltration in underground drilling of mines, especially high-temperature water infiltration, which affects construction progress and safety.
A orifice pipe structure drilled in an underground pit is designed, including an orifice pipe and a removable orifice cap. The lower end of the orifice pipe is buried in the base hole, and a reinforced seal is provided between the outer peripheral surface and the side wall of the base hole. A through hole and a control valve are provided on the orifice cap. The water inrush pressure is controlled through the control valve, and the water inrush is guided through the pipe body to avoid spraying, and the taper thread ensures sealing.
Effectively prevent orifice collapse and water influx, ensure construction safety, improve construction efficiency, reduce environmental uncertainty, save drainage costs, and is suitable for deep underground drilling.
Smart Images
Figure CN223256770U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of drilling auxiliary devices, in particular to an orifice pipe structure for drilling in a pit underground. Background Art
[0002] When mining, drilling is necessary to obtain information on the reserves of the minerals in the mine. Pit drilling is the primary method for underground geological prospecting. However, deep drilling operations in mines present many uncertainties, primarily underground water inrush and orifice collapse. Unpredictable high-temperature water inrush, in particular, poses significant risks to underground prospecting operations, creating a harsh construction environment and significantly impacting construction progress. Therefore, controlling water inrush within the required range and addressing orifice collapse during drilling are pressing challenges in construction. Utility Model Content
[0003] The purpose of the utility model is to solve the above problems and provide a hole pipe structure for underground pit drilling to solve the technical problems of mine drilling hole collapse and uncontrollable drilling water gushing in the prior art.
[0004] To achieve the above-mentioned purpose, the technical solution of the present invention is a hole pipe structure for underground pit drilling, comprising:
[0005] An orifice tube, the lower end of which is used to be buried in the base hole, and a reinforced sealing body is provided between the outer peripheral surface of the orifice tube and the side wall of the base hole;
[0006] The orifice cap is detachably connected to the upper end of the orifice tube. A through hole is provided on the orifice cap, and a control valve is provided on the through hole.
[0007] Specifically, through the above-mentioned setting method, during geological drilling, a base hole is set at the drilling position, an orifice pipe is set in the base hole, and the orifice pipe is fixed with a reinforced sealing body, and then drilling operations are carried out in the orifice pipe. The orifice pipe can effectively avoid the phenomenon of orifice collapse. When water gushing occurs during drilling, the orifice cap can be set at the end of the orifice pipe to effectively prevent the gushing water from leaking. By setting a through hole and a control valve, the control valve can be opened when the orifice cap is installed on the orifice pipe, and the gushing water pressure can be released through the control valve, which facilitates the installation of the orifice cap. After installation, the control valve is closed to prevent gushing.
[0008] Furthermore, a tube body communicating with the through hole is provided on a surface of the orifice cap away from the orifice tube, and the control valve is provided on the tube body.
[0009] Specifically, by setting up the pipe body, it can play a role in guiding water. When the orifice cap is set on the orifice pipe, the gushing water is guided outward to avoid the gushing water spraying on the operator, thereby ensuring safe construction.
[0010] Furthermore, the upper end of the orifice tube is provided with a tapered internal thread, the orifice cap includes a connecting tube and an end plate sealed at the end of the connecting tube, and the other end of the connecting tube is provided with a tapered external thread adapted to the tapered internal thread.
[0011] Specifically, the connecting pipe and the orifice pipe are matched with tapered internal threads and tapered external threads. The tapered threads have good sealing properties and reliable connection effects, thereby ensuring that the connecting pipe and the orifice pipe are tightly sealed and matched.
[0012] Furthermore, the reinforced sealing body is concrete filled between the base hole and the orifice pipe.
[0013] Furthermore, a blocking plate with a circular plate structure is detachably provided on the end plate. When the orifice cap is installed on the end of the orifice tube, the blocking plate is located at the lower orifice position of the orifice tube, and the outer peripheral surface of the blocking plate is slidably sealed with the inner peripheral surface of the orifice tube.
[0014] Specifically, by arranging a blocking plate on the end plate, when the orifice pipe is arranged in the base hole and concrete is poured to form a reinforced sealing body, the blocking plate can be penetrated into the orifice pipe, and the orifice cap is pre-installed at the end of the orifice pipe. At this time, concrete is poured. At this time, the blocking plate is located at the lower end of the orifice pipe, blocking the orifice, thereby preventing the concrete from flowing to the lower end of the orifice pipe, and also preventing the concrete from entering the interior of the orifice pipe from the upper end of the orifice pipe, thereby avoiding the pouring of concrete in the orifice pipe, which is convenient for subsequent drilling construction.
[0015] Furthermore, an air passage is provided through the blocking plate.
[0016] Specifically, by setting up an air channel, when the blocking plate is pulled out from the orifice tube from bottom to top, air is exchanged through the air channel so that the gas above the blocking plate enters the bottom of the blocking plate, making it easier to remove the blocking plate.
[0017] Furthermore, a rigid second connecting pipe is detachably provided on the blocking plate, the blocking plate is provided at the other end of the second connecting pipe, the second connecting pipe is connected to the airway, and the upper end of the airway can be connected to the atmosphere through the end plate.
[0018] Furthermore, the through hole is coaxially arranged with the connecting pipe, and the second connecting pipe is coaxially arranged with the connecting pipe and communicates with the through hole.
[0019] Specifically, through this setting method, when the blocking plate is set at the bottom of the orifice pipe, the control valve can be closed, so that the airflow in the second connecting pipe cannot be discharged upward. At this time, when pouring concrete, even if the concrete flows to the airway through the gap between the end of the orifice pipe and the bottom of the base hole, since the airway is connected to the second connecting pipe, gas is sealed in the airway, so it is not easy for concrete to enter the airway, thereby effectively avoiding concrete blocking the airway.
[0020] Furthermore, the blocking plate is detachably fixedly connected to the second connecting pipe.
[0021] Specifically, through this arrangement, the blocking plate and the second connecting pipe can be removed when the blocking plate is not in use, so as to facilitate storage.
[0022] The utility model discloses an orifice pipe structure for underground pit drilling, which has the following beneficial effects compared with the prior art: it can effectively prevent the problems of orifice collapse and uncontrollable water gushing during drilling, and comprises an orifice pipe, the lower end of which is used to be buried in a base hole, and a reinforced sealing body is provided between the outer peripheral surface of the orifice pipe and the side wall of the base hole; an orifice cap, which is detachably connected to the upper end of the orifice pipe, the orifice cap is provided with a through hole, and the through hole is provided with a control valve. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 The utility model provides a structural schematic diagram of the connection between an orifice pipe and an orifice cap in an orifice pipe structure for underground pit drilling.
[0024] Figure 2 The utility model provides a structural schematic diagram of an orifice pipe in an orifice pipe structure for underground pit drilling.
[0025] Figure 3 The utility model provides a structural schematic diagram of an orifice cap and a plugging plate in an orifice pipe structure for underground pit drilling.
[0026] Figure 4 The utility model provides an overall structural diagram of an orifice pipe structure for underground pit drilling.
[0027] Figure 5 The utility model provides a schematic cross-sectional structure diagram of a hole cap and a plugging plate in a hole pipe structure for underground pit drilling.
[0028] Figure 6 for Figure 5 A schematic structural diagram of the second connecting pipe and the blocking plate is hidden in FIG.
[0029] Figure 7 The utility model provides a schematic cross-sectional structure diagram of a second connecting pipe and a plugging plate in an orifice pipe structure for underground pit drilling.
[0030] In the figure: 1, orifice pipe; 10, tapered internal thread; 2, orifice cap; 2a, connecting pipe; 2b, end plate; 201, tapered external thread; 21, through hole; 22, pipe body; 23, control valve; 24, first threaded connecting sleeve; 3, blocking plate; 31, airway; 32, second connecting pipe; 321, second external thread; 33, second threaded connecting sleeve; 4, base hole; 41, reinforced sealing body. DETAILED DESCRIPTION
[0031] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner, and thus only show components related to the present invention.
[0032] Please refer to Figure 1-6 The present invention provides an orifice pipe structure for underground pit drilling. As a specific embodiment, the structure includes:
[0033] An orifice pipe 1, the lower end of which is used to be buried in a base hole 4, and a reinforced sealing body 41 is provided between the outer peripheral surface of the orifice pipe 1 and the side wall of the base hole 4;
[0034] The orifice cap 2 is detachably connected to the upper end of the orifice pipe 1 . A through hole 21 is provided through the orifice cap 2 , and a control valve 23 is provided on the through hole 21 .
[0035] Specifically, before drilling the geology, a base hole 4 with a diameter larger than the outer diameter of the orifice pipe 1 can be drilled at the drilling location. The depth of the base hole is less than the height of the orifice pipe. For example, the base hole diameter is 9.1 cm and the depth is more than 1 meter. The outer diameter of the orifice pipe is 8.9 cm and the length is more than 1.2 meters. Then the orifice pipe is set in the base hole and the upper end is reserved 20 cm outside the base hole. The bottom of the orifice pipe contacts the bottom of the base hole. Then concrete is poured in the base hole. After the concrete is dried, a reinforced sealing body 41 is formed to ensure that the orifice pipe is effectively connected to the geology and sealed. Through the above setting method, During the quality drilling, a basic hole is set at the drilling position, an orifice pipe 1 is set in the basic hole, and the orifice pipe 1 is fixed with a reinforced sealing body 41, and then the drilling operation is carried out in the orifice pipe. The orifice pipe can effectively avoid the phenomenon of orifice collapse. When water gushing occurs during drilling, the orifice cap 2 can be set at the end of the orifice pipe 1 to effectively prevent the gushing water from leaking out. By setting the through hole 21 and the control valve 23, the control valve 23 can be opened when the orifice cap is installed on the orifice pipe, and the gushing water pressure can be released through the control valve, which facilitates the installation of the orifice cap. After installation, the control valve is closed to prevent gushing.
[0036] Furthermore, a tube body 22 communicating with the through hole 21 is provided on a surface of the orifice cap 2 away from the orifice tube 1 , and the control valve 23 is provided on the tube body 22 .
[0037] Specifically, by setting the tube body 22, it can play a guiding role on water. When the orifice cap 2 is set on the orifice pipe, the gushing water is discharged outward to avoid the gushing water spraying on the operator, thereby ensuring safe construction. Specifically, the tube body 22 can be connected to the orifice cap by welding, and can also be connected by threads.
[0038] Further, as a preferred embodiment, refer to Figure 2 、 Figure 3 The upper end of the orifice tube 1 is provided with a tapered internal thread 10, and the orifice cap 2 includes a connecting tube 2a and an end plate 2b sealed at the end of the connecting tube, and the other end of the connecting tube 2a is provided with a tapered external thread 201 adapted to the tapered internal thread 10.
[0039] Specifically, the connecting pipe and the orifice pipe are matched with tapered internal threads and tapered external threads. The tapered threads have good sealing properties and reliable connection effects, thereby ensuring that the connecting pipe and the orifice pipe are tightly sealed and matched.
[0040] Furthermore, the reinforced sealing body 41 is concrete filled between the base hole 4 and the orifice pipe 1 .
[0041] Further, as a specific implementation method, refer to Figure 3-Figure 5 , Figure 7 A circular plate-shaped blocking plate 3 is detachably provided on the end plate 2b. When the orifice cap 2 is installed on the end of the orifice tube 1, the blocking plate 3 is located at the lower orifice position of the orifice tube 1, and the outer peripheral surface of the blocking plate 3 is slidably sealed with the inner peripheral surface of the orifice tube 1.
[0042] Specifically, the blocking plate can be made by cutting steel plates. By arranging the blocking plate 3 on the end plate, when the orifice pipe is set in the base hole and concrete is poured to form a reinforced sealing body 41, the blocking plate can be penetrated into the orifice pipe. The orifice cap is pre-installed at the end of the orifice pipe. At this time, concrete is poured. At this time, the blocking plate is located at the lower end of the orifice pipe, blocking the orifice, thereby preventing the concrete from flowing to the lower end of the orifice pipe, and also preventing the concrete from entering the interior of the orifice pipe from the upper end of the orifice pipe, thereby avoiding pouring concrete in the orifice pipe, which is convenient for subsequent drilling construction.
[0043] Further, as a specific embodiment, refer to Figure 7 An air passage 31 is provided through the blocking plate 3 .
[0044] Specifically, it can be understood that, when the plugging plate is installed into the orifice tube from top to bottom, the air flow in the orifice tube can be discharged from the base hole. After the concrete is poured into the base hole to form a reinforced sealing body, the orifice tube and the base hole are sealed and matched, and the plugging plate slides and seals with the inner wall of the orifice tube, making it inconvenient to remove the plugging plate. By setting the air channel 31, when the plugging plate is pulled out of the orifice tube from bottom to top, air is exchanged through the air channel 31, so that the gas above the plugging plate enters the bottom of the plugging plate, making it easy to remove the plugging plate.
[0045] Furthermore, as a preferred embodiment, a rigid second connecting pipe 32 is detachably provided on the blocking plate, and the blocking plate 3 is provided at the other end of the second connecting pipe 32. The second connecting pipe 32 is connected to the airway 31, and the upper end of the airway can be connected to the atmosphere through the end plate 2b.
[0046] Specifically, refer to Figure 6 、 Figure 7 A first threaded connection sleeve 24 is provided on the end plate, and a second external thread 321 is provided at the end of the second connecting pipe. The second external thread can be connected to the first threaded connection sleeve. Through this arrangement, the blocking plate 3 can be easily disassembled from the orifice cap after being taken out of the orifice pipe.
[0047] Further, as a preferred embodiment, the through hole 21 is coaxially arranged with the connecting pipe 2 a , and the second connecting pipe 32 is coaxially arranged with the connecting pipe 2 a and communicates with the through hole 21 .
[0048] Specifically, through this setting method, when the blocking plate is set at the bottom of the orifice pipe, the control valve can be closed, so that the air flow in the second connecting pipe cannot be discharged upward. At this time, when pouring concrete, even if the concrete flows to the air channel 31 through the gap between the end of the orifice pipe and the bottom of the base hole, since the air channel is connected to the second connecting pipe, gas is sealed in the air channel 31, so it is not easy for concrete to enter the air channel 31, thereby effectively avoiding concrete blocking the air channel 31.
[0049] Furthermore, the blocking plate 3 and the second connecting pipe 32 are detachably fixedly connected.
[0050] Specifically, refer to Figure 7 A second threaded connection sleeve 33 is coaxially arranged on the blocking plate 3 and the airway 31, and is threadedly connected to the second connecting pipe through the second threaded connection sleeve. Through this arrangement, the blocking plate can be removed from the second connecting pipe when not in use for easy storage.
[0051] The orifice pipe structure provided by the present application effectively prevents gravel and debris from falling into the orifice, and is conducive to the passage of the drill rod, shortening the time for lifting and lowering the drill, and improving the efficiency of drilling per round; it can effectively control the sudden high-temperature water gushing in deep mine exploration, ensure that the construction environment is suitable and comfortable, improve the work efficiency of workers, greatly reduce the uncertainty of the underground construction environment, and provide a strong guarantee for the exploration and reserve increase of the mine; it can timely adjust and seal the water volume according to production needs and the drainage volume of the water pump, saving the electricity bill generated by drainage, reducing production costs, and being conducive to the high-quality development of the mine. This orifice pipe device is simple to make, easy to install, and has excellent effects. It is particularly suitable for application in deep underground drilling. Therefore, after verification and use in this mining area, this orifice pipe device for underground drilling has broad application prospects and promotion significance.
[0052] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.
Claims
1. An orifice pipe structure for underground pit drilling, characterized in that: include: An orifice tube (1), wherein the lower end portion of the orifice tube (1) is used to be buried in a base hole (4), and a reinforced sealing body (41) is provided between the outer peripheral surface of the orifice tube (1) and the side wall of the base hole (4); An orifice cap (2) is detachably connected to the upper end of the orifice tube (1); a through hole (21) is provided through the orifice cap (2); and a control valve (23) is provided on the through hole (21).
2. The orifice pipe structure for underground pit drilling according to claim 1, characterized in that: A tube body (22) communicating with the through hole (21) is provided on a surface of the orifice cap (2) away from the orifice tube (1), and the control valve (23) is provided on the tube body (22).
3. The orifice pipe structure for underground pit drilling according to claim 2, characterized in that: The upper end of the orifice tube (1) is provided with a tapered internal thread (10), the orifice cap (2) comprises a connecting tube (2a) and an end plate (2b) sealingly provided at the end of the connecting tube, and the other end of the connecting tube (2a) is provided with a tapered external thread (201) adapted to the tapered internal thread (10).
4. The orifice pipe structure for underground pit drilling according to claim 1, characterized in that: The reinforced sealing body (41) is concrete filled between the base hole (4) and the orifice pipe (1).
5. The orifice pipe structure for underground pit drilling according to claim 3, characterized in that: A blocking plate (3) with a circular plate-like structure is detachably provided on the end plate (2b); when the orifice cap (2) is installed on the end of the orifice tube (1), the blocking plate (3) is located at the lower orifice of the orifice tube (1), and the outer peripheral surface of the blocking plate (3) is in sliding sealing cooperation with the inner peripheral surface of the orifice tube (1).
6. The orifice pipe structure for underground pit drilling according to claim 5, characterized in that: An air passage (31) is provided through the blocking plate (3).
7. The orifice pipe structure for underground pit drilling according to claim 6, characterized in that: A rigid second connecting pipe (32) is detachably provided on the blocking plate, and the blocking plate (3) is provided at the other end of the second connecting pipe (32). The second connecting pipe (32) is connected to the airway (31), and the upper end of the airway can be connected to the atmosphere through the end plate (2b).
8. The orifice pipe structure for underground pit drilling according to claim 7, characterized in that: The through hole (21) is coaxially arranged with the connecting pipe (2a), and the second connecting pipe (32) is coaxially arranged with the connecting pipe (2a) and communicates with the through hole (21).
9. The orifice pipe structure for underground pit drilling according to claim 8, characterized in that: The blocking plate (3) is detachably fixedly connected to the second connecting pipe (32).