A high-efficiency downhole control point modification structure

Abstract

This utility model discloses a high-efficiency downhole control point modification structure, belonging to the field of downhole construction technology. It includes a nail head, a nail rod fixedly mounted on the upper surface of the nail head, a nail sleeve fitted on the outer surface of the nail rod, and several tightening holes on the nail sleeve. A tightening plate is movably installed within each tightening hole. A protrusion is fixedly mounted on the side of the tightening plate facing the nail rod, and the protrusion fits snugly against the outer surface of the nail rod. By using the nail head, nail rod, and nail sleeve together, the nail rod can be inserted into the nail sleeve, driving the tightening plate to rotate outwards. This tightening plate then tightens against the inner wall of the mounting hole on the roadway roof, preventing loosening and detachment. Furthermore, the nail rod and nail sleeve are detachable via a locking sleeve, allowing for repeated disassembly and reassembly, improving economic efficiency. Simultaneously, the use of a eccentrically positioned measuring line through-hole with the nail rod enables stable installation of the measuring line, allowing for immediate use and avoiding excessive time investment.

Description

Technical Field

[0001] This utility model belongs to the field of downhole construction technology, specifically relating to an efficient downhole control point modification structure. Background Technology

[0002] Downhole operations refer to a series of technical measures taken on underground oil, gas, and water wells during oilfield exploration and development to ensure their normal production. Downhole operations include various methods, each with its specific application scenarios and technical requirements.

[0003] To ensure safety during underground operations, it is necessary to lay underground traverse control points. These control points are used to install vertically downward survey lines on the tunnel roof. Underground traverse control points are classified into two types according to the measurement direction: horizontal control points and vertical control points. They are also classified into two types according to their retention period: permanent points and temporary points. Furthermore, they are classified into three categories according to their level: high-level control points, basic control points, and mining area control points. High-level and basic control points are permanent and are typically installed using copper stakes, generally in sets every 500-2000 meters, with each set consisting of at least three adjacent points. Mining area control points are temporary and can be installed using nails and cement nails.

[0004] Existing underground control point applications use specially made copper piles mixed with cement and buried in the roadway roof, providing clear measurement markers. However, the cost of underground control points using copper piles and cement is high, and the copper piles and cement cannot be used immediately, requiring the cement to harden, increasing time costs. Furthermore, after installation, subsequent disassembly, assembly, and maintenance are inconvenient, resulting in certain limitations in use. Therefore, we propose an efficient underground control point modification structure. Utility Model Content

[0005] The purpose of this utility model is to provide an efficient underground control point modification structure to solve the problems mentioned in the background art. The existing underground control point measurement points are made by using specially made copper piles mixed with cement and buried on the roadway roof. They have obvious measurement marks, but the cost of underground wire control points using copper piles and cement is high. In addition, the copper piles and cement cannot be used immediately, and they can only be used after the cement hardens, which increases the time cost. Furthermore, it is not convenient to carry out subsequent disassembly, assembly and maintenance after the laying is completed, which has certain limitations in use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency downhole control point modification structure, comprising a nail head, a nail rod fixedly mounted on the upper surface of the nail head, a nail sleeve fitted on the outer surface of the nail rod, a plurality of tightening holes being formed on the nail sleeve, and a tightening plate being movably disposed within the tightening holes, a protrusion being fixedly mounted on the side of the tightening plate facing the nail rod, the protrusion being fitted against the outer surface of the nail rod, a receiving groove being formed on the upper surface of the nail head, the bottom end of the nail sleeve being inserted into the receiving groove, an operating plate being fixedly mounted on the outer surface of the bottom end of the nail sleeve, the operating plate being filled into the receiving groove, and a measuring line through hole being formed on the nail head, the measuring line through hole being eccentrically arranged with respect to the nail rod.

[0007] The above solution utilizes a combination of nail head, nail rod, and nail sleeve. The nail rod can be inserted into the nail sleeve, causing the top clamping plate to rotate outward. This allows the top clamping plate to tighten against the inner wall of the mounting hole on the tunnel roof, preventing loosening and detachment. The nail rod and nail sleeve are designed to be detachable via a locking sleeve, allowing for repeated disassembly and reassembly, thus improving economic efficiency. Furthermore, the use of the eccentric measuring line through-holes with the nail rod ensures stable installation of the measuring line, enabling immediate use and avoiding excessive time investment.

[0008] In a preferred embodiment, a recessed area is provided on the nail head at the position opposite the test line hole, and the recessed area is used to support the test line and allow the test line to be wound through.

[0009] By adopting the above solution, the recessed area can prevent the measuring line from protruding from the nail head after passing through the measuring line hole, thus avoiding squeezing and wear between the measuring line and the roadway roof, thereby ensuring the normal use of the measuring line.

[0010] In a preferred embodiment, a sealing ring is attached to the upper surface of the nail head, and a sealing groove is provided at the bottom end of the nail sleeve, with the sealing ring fitted and disposed on the inner wall of the sealing groove.

[0011] By using the above solution, and employing a sealing ring in conjunction with a sealing groove, a good sealing characteristic can be ensured between the nail sleeve and the nail head after the nail rod is inserted into the nail sleeve.

[0012] In a preferred embodiment, a fixing rod is rotatably mounted on the inner wall of the tightening hole on the nail sleeve, and the tightening plate is fixedly mounted on the outer surface of the fixing rod.

[0013] By using the above solution, the rotation of the top plate can be achieved by setting the fixing rod, thereby achieving the tightening effect of the top plate.

[0014] In a preferred embodiment, an adjustment groove is provided on the outer surface of the bottom end of the nail rod, and a return spring is fixedly installed on the inner wall of the adjustment groove. A locking sleeve is fixedly installed on the end of the return spring, and a locking hole is provided on the nail sleeve for the locking sleeve to be inserted.

[0015] Using the above scheme, the adjustment groove is used in conjunction with the return spring. The force generated by the deformation of the return spring drives the locking sleeve to be quickly inserted into the locking hole, so that the nail rod can be deformed and locked with the nail sleeve after being inserted into the nail sleeve. The locking structure is simple and easy to operate.

[0016] In a preferred embodiment, a telescopic rod is fixedly installed on the inner wall of the adjusting groove on the nail rod, and the telescopic rod is fixedly connected to the locking sleeve.

[0017] By adopting the above solution, the telescopic rod can provide support and guidance for the locking sleeve, preventing the nail sleeve from shaking and improving stability.

[0018] In a preferred embodiment, the locking sleeve has an inclined surface, and the inclined surface is located on the upper surface of the locking sleeve.

[0019] With the above solution, when the nail rod is inserted into the nail sleeve from bottom to top, the locking sleeve will move and retract into the adjustment groove due to the existence of the inclined surface when it contacts the nail sleeve, thus improving the convenience of insertion operation.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] This efficient downhole control point modification structure uses a nail head, nail rod, and nail sleeve in combination. The nail rod can be inserted into the nail sleeve and drive the top clamping plate to rotate outward. This uses the top clamping plate to tighten the inner wall of the mounting hole on the roadway roof, achieving the effect of preventing loosening and falling off. The nail rod and nail sleeve are detachable through a locking sleeve, and the whole can be repeatedly disassembled and reassembled, improving the economical use cost. At the same time, it is used in conjunction with the eccentric measuring line through hole of the nail rod to achieve stable installation of the measuring line, which can be used immediately after installation, avoiding excessive time cost investment. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of a partial cross-section of the present invention;

[0024] Figure 3 This is a schematic diagram of the nail head and nail rod of this utility model;

[0025] Figure 4 This is a structural schematic diagram of the cross-section of the nail rod of this utility model;

[0026] Figure 5 This utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0027] In the diagram: 1. Nail head; 2. Nail rod; 3. Nail sleeve; 4. Fixing rod; 5. Tightening plate; 6. Locking sleeve; 7. Operating panel; 8. Test line through hole; 9. Protrusion block; 10. Recessed area; 11. Sealing ring; 12. Telescopic rod; 13. Return spring. Detailed Implementation

[0028] Please see Figure 1-5 This utility model provides a high-efficiency downhole control point modification structure, including a nail cap 1, a nail rod 2 fixedly installed on the upper surface of the nail cap 1, a nail sleeve 3 sleeved on the outer surface of the nail rod 2, a plurality of tightening holes opened on the nail sleeve 3, and a tightening plate 5 movably installed in the tightening holes. A protrusion 9 is fixedly installed on the side of the tightening plate 5 facing the nail rod 2. The protrusion 9 is fitted and arranged on the outer surface of the nail rod 2. A receiving groove is opened on the upper surface of the nail cap 1. The bottom end of the nail sleeve 3 is inserted into the receiving groove. An operating plate 7 is fixedly installed on the outer surface of the bottom end of the nail sleeve 3. The operating plate 7 is filled in the receiving groove. A measuring line through hole 8 is opened on the nail cap 1. The measuring line through hole 8 is eccentrically arranged with the nail rod 2.

[0029] By using the nail head 1, nail rod 2, and nail sleeve 3 together, the nail rod 2 can be inserted into the nail sleeve 3 and drive the top plate 5 to rotate outward. This allows the top plate 5 to tighten against the inner wall of the mounting hole on the tunnel roof, preventing loosening and falling off. The nail rod 2 and nail sleeve 3 are detachable through the locking sleeve 6, allowing for repeated disassembly and reassembly, thus improving economic efficiency. At the same time, the use of the eccentric measuring line through hole 8 with the nail rod 2 enables stable installation of the measuring line, allowing for immediate use and avoiding excessive time investment.

[0030] A recessed area 10 is provided on the nail head 1 at the position opposite to the measuring line through hole 8. The recessed area 10 is used to support the measuring line and allow the measuring line to pass through. The recessed area 10 can prevent the measuring line from protruding from the nail head 1 after passing through the measuring line through hole 8 and causing squeezing and wear between it and the roadway roof, thereby ensuring the normal use of the measuring line.

[0031] A sealing ring 11 is attached to the upper surface of the nail head 1, and a sealing groove is provided at the bottom of the nail sleeve 3. The sealing ring 11 is attached to the inner wall of the sealing groove. By using the sealing ring 11 in conjunction with the sealing groove, a good sealing characteristic can be ensured between the nail sleeve 3 and the nail head 1 after the nail rod 2 is inserted into the nail sleeve 3.

[0032] A fixing rod 4 is rotatably installed on the inner wall of the tightening hole on the nail sleeve 3, and the tightening plate 5 is fixedly installed on the outer surface of the fixing rod 4. The fixing rod 4 can be used to rotate the tightening plate 5, thereby achieving the tightening effect of the tightening plate 5.

[0033] An adjustment groove is provided on the outer surface of the bottom end of the nail rod 2, and a return spring 13 is fixedly installed on the inner wall of the adjustment groove. A locking sleeve 6 is fixedly installed on the end of the return spring 13. A locking hole is provided on the nail sleeve 3 for the locking sleeve 6 to be inserted. The adjustment groove is used in conjunction with the return spring 13. The force generated by the deformation of the return spring 13 drives the locking sleeve 6 to be quickly inserted into the locking hole, so that the nail rod 2 can be deformed and locked with the nail sleeve 3 after being inserted into the nail sleeve 3. The locking structure is simple and easy to operate.

[0034] A telescopic rod 12 is fixedly installed on the inner wall of the adjustment groove on the nail rod 2. The telescopic rod 12 is fixedly connected to the locking sleeve 6. The telescopic rod 12 can support and guide the locking sleeve 6, prevent the nail sleeve 3 from shaking, and improve stability.

[0035] The locking sleeve 6 has an inclined surface, which is located on the upper surface of the locking sleeve 6. When the nail rod 2 is inserted into the nail sleeve 3 from bottom to top, the locking sleeve 6 will move and retract into the adjustment groove due to the presence of the inclined surface when it contacts the nail sleeve 3, thus improving the ease of use of the insertion operation.

[0036] In use, first insert the nail sleeve 3 into the mounting hole on the roof of the underground roadway, then pass the measuring line through the measuring line hole 8, and then insert the nail rod 2 into the nail sleeve 3 from bottom to top. During the insertion of the nail rod 2, when the locking sleeve 6 touches the nail sleeve 3, the inclined surface of the locking sleeve 6 will cause the locking sleeve 6 to compress the return spring 13 and deform into the adjustment groove. When the nail rod 2 continues to be inserted into the nail sleeve 3 until it is fully inserted, the nail rod 2 will drive the protrusion 9 to drive the top plate 5 to rotate, so that the top plate 5 rotates outward and presses against the inner wall of the mounting hole on the roof of the underground roadway. At the same time, the elastic force of the return spring 13 will drive the locking sleeve 6 to move and insert into the locking hole, realizing the assembly and locking of the nail rod 2 and the nail sleeve 3. At this time, the bottom end of the nail sleeve 3 and the operating plate 7 are inserted into the receiving groove on the nail cap 1, and the nail sleeve 3 and the nail cap 1 are sealed by the sealing rubber ring 11.

Claims

1. A high-efficiency downhole control point modification structure, characterized in that: The device includes a nail head (1), a nail rod (2) fixedly mounted on the upper surface of the nail head (1), a nail sleeve (3) sleeved on the outer surface of the nail rod (2), a plurality of tightening holes on the nail sleeve (3), and a tightening plate (5) movably disposed in the tightening holes. A protrusion (9) is fixedly mounted on the side of the tightening plate (5) facing the nail rod (2). The protrusion (9) is fitted and disposed on the outer surface of the nail rod (2). A receiving groove is opened on the upper surface of the nail head (1). The bottom end of the nail sleeve (3) is inserted into the receiving groove. An operating plate (7) is fixedly mounted on the outer surface of the bottom end of the nail sleeve (3). The operating plate (7) is filled in the receiving groove. A measuring line through hole (8) is opened on the nail head (1). The measuring line through hole (8) is eccentrically disposed with respect to the nail rod (2).

2. The high-efficiency downhole control point reformation structure according to claim 1, characterized in that: A recessed area (10) is provided on the nail cap (1) at the position opposite to the measuring line through hole (8), and the recessed area (10) is used to support the measuring line and allow the measuring line to be wound through.

3. The high-efficiency downhole control point reformation structure according to claim 1, characterized in that: A sealing ring (11) is pasted and installed on the upper surface of the nail head (1), and a sealing groove is opened at the bottom end of the nail sleeve (3). The sealing ring (11) is attached to the inner wall of the sealing groove.

4. The high-efficiency downhole control point reformation structure according to claim 1, characterized in that: A fixing rod (4) is rotatably installed on the inner wall of the tightening hole on the nail sleeve (3), and the tightening plate (5) is fixedly installed on the outer surface of the fixing rod (4).

5. The high-efficiency downhole control point modification structure according to claim 1, characterized in that: An adjustment groove is provided on the outer surface of the bottom end of the nail rod (2), and a return spring (13) is fixedly installed on the inner wall of the adjustment groove. A locking sleeve (6) is fixedly installed on the end of the return spring (13), and a locking hole for the locking sleeve (6) to be inserted is provided on the nail sleeve (3).

6. The high-efficiency downhole control point reformation structure according to claim 5, characterized in that: A telescopic rod (12) is fixedly installed on the inner wall of the adjustment groove on the nail rod (2), and the telescopic rod (12) is fixedly connected to the locking sleeve (6).

7. The high-efficiency downhole control point reformation structure according to claim 5, characterized in that: The locking sleeve (6) has an inclined surface, and the inclined surface is located on the upper surface of the locking sleeve (6).

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