Upward drilling water return prevention drill rod
By designing an uplink drilling anti-return drilling rod for coal mine gas treatment projects, using a combined structure of anti-return balloon and filter mesh, the waiting problem caused by water reflux during drilling construction is solved, and construction efficiency and resource utilization are improved rate, reduce costs and sewage discharge.
Patent Information
- Application Number
- CN202421469067.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-06-26
AI Technical Summary
In coal mine gas treatment projects, when drilling upwards, water reflux in the drill rod will require waiting for drilling and drilling, wasting water resources, increasing sewage discharge, reducing construction efficiency and increasing costs.
An uplink drilling anti-return drilling rod is designed, including the drill pipe body, water supply port, water outlet, water outlet, water outlet, waterproof hole, waterproof balloon and filter net. Through the communication between the water supply port and the water-through hole, the water flow is prevented from returning by using the waterproof balloon and water pressure, and the water flow is filtered through the filter.
It effectively prevents the water return in the drill rod, reduces the waiting time for adding drill rods and drilling, improves construction efficiency, saves water resources and reduces sewage discharge, thereby saving costs and improving the working environment of workers.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of drill rods, in particular to an upward drilling anti-backwater drill rod. Background Art
[0002] In coal mine gas control projects, drilling is an indispensable task, especially in the construction of low-extraction tunnels, where gas is extracted from the upper coal seams by drilling holes in the upper layers. This is widely used in coal mines. Usually, when adding drill rods during the construction of upward drilling holes, it is necessary to wait for the water in the drill rod to flow back before adding the drill rod. After adding the drill rod, it is necessary to wait for the water in the drill rod to be full before drilling. The waiting time for this process varies according to the depth of the borehole. The deeper the borehole, the longer the waiting time. This process not only wastes mine water resources, but also increases the amount of sewage discharged from the mine, reduces the efficiency of drilling construction, and increases the cost of the mine. Utility Model Content
[0003] The technical problem to be solved by the utility model is to overcome the defects of the above-mentioned technology and provide an upward drilling anti-backwater drill rod.
[0004] In order to solve the above technical problems, the technical solution provided by the utility model is an upward drilling anti-backwater drill rod: it includes a drill rod body, a water supply port is provided at the lower end of the drill rod body, and a water outlet is provided at the upper end, a water hole connecting the water supply port with the water outlet is provided inside the drill rod body, the diameter of the water outlet is larger than the diameter of the water hole, the connection between the water outlet and the water hole is linearly transitioned, an anti-backwater ball is provided in the water outlet, and a filter net is provided on the upper inner side of the water outlet.
[0005] Furthermore, the filter screen is connected to the drill rod body via a retaining spring and is detachable.
[0006] Furthermore, the diameter of the water supply port decreases linearly from the outer end to the inner end, and the inner end diameter of the water supply port is larger than the diameter of the water through hole.
[0007] Compared with the prior art, the utility model has the following advantages: the utility model can prevent water backflow in the drill rod when adding the drill rod; reduce the waiting time for adding the drill rod and drilling, thereby improving the construction efficiency; save mine water resources and reduce sewage discharge, thereby saving costs; and improve the working environment of workers. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 The utility model is a structural schematic diagram of an upward drilling anti-backwater drill rod.
[0009] As shown in the figure:
[0010] 1. Drill pipe body, 2. Water supply port, 3. Water outlet, 4. Water hole, 5. Anti-backflow ball, 6. Filter screen, 7. Circlip. DETAILED DESCRIPTION
[0011] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0012] Embodiment 1, in combination with Figure 1 A backflow prevention drill rod for upward drilling comprises a drill rod body 1, a water supply port 2 is provided at the lower end of the drill rod body 1, and a water outlet 3 is provided at the upper end. A water through hole 4 connecting the water supply port 2 with the water outlet 3 is provided inside the drill rod body 1. The diameter of the water outlet 3 is larger than the diameter of the water through hole 4. The connection between the water outlet 3 and the water through hole 4 is linearly transitioned. A backflow prevention ball 5 is provided in the water outlet 3, and a filter screen 6 is provided on the upper inner side of the water outlet 3.
[0013] The filter screen 6 is connected to the drill rod body 1 through a retaining spring 7 and is detachable for easy maintenance and replacement.
[0014] The diameter of the water supply port 2 decreases linearly from the outer end to the inner end, and the inner end diameter of the water supply port 2 is larger than the diameter of the water through hole 4 .
[0015] Working principle:
[0016] 1. During normal drilling, use the water supply pressure to flush the anti-backflow ball, open the water supply, and use the filter net above to block the anti-backflow ball.
[0017] 2. When adding drill pipes, use the gravity of the anti-backflow ball and the water pressure to block the waterway to prevent water backflow.
[0018] In the description of the embodiments of the present utility model, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate an orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0019] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0020] In the description of the embodiments of the present invention, "multiple" means at least 2.
[0021] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0022] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.
Claims
1. An upward drilling anti-backwater drill rod, comprising a drill rod body (1), wherein the lower end of the drill rod body (1) is provided with a water inlet (2), and the upper end is provided with a water outlet (3), and the inside of the drill rod body (1) is provided with a water hole (4) for connecting the water inlet (2) and the water outlet (3), characterized in that: The diameter of the water outlet (3) is greater than the diameter of the water through hole (4); the connection between the water outlet (3) and the water through hole (4) is linearly transitioned; a water backflow prevention ball (5) is provided in the water outlet (3); and a filter screen (6) is provided at the upper inner part of the water outlet (3).
2. The anti-backwater drill rod for upward drilling according to claim 1, characterized in that: The filter screen (6) is connected to the drill rod body (1) via a retaining spring (7) and is detachable.
3. The anti-backwater drill pipe for upward drilling according to claim 1, characterized in that: The diameter of the water supply port (2) decreases linearly from the outer end to the inner end, and the inner end diameter of the water supply port (2) is greater than the diameter of the water through hole (4).