Gas extraction drilling repair equipment

Abstract

The utility model provides gas extraction drill hole repairing equipment, which belongs to the technical field of drill hole repairing and comprises an inner plate, a rubber ring is fixedly connected onto the peripheral side wall of the inner plate, two supports are symmetrically and fixedly connected onto the inner plate, connecting rods are fixedly connected to one ends, far away from the inner plate, of the two supports, and the connecting rods are fixedly connected onto the inner plate. And the outer end of the connecting rod is fixedly connected with a fixing frame, the inner plate is rotationally connected with a two-way screw rod through a bearing, the two-way screw rod is symmetrically connected with two moving sleeves in a threaded mode, and the two moving sleeves are rotationally connected with four rotating rods at equal intervals. Through the arrangement of the inner plate, the support, the connecting rod, the fixing frame, the two-way screw rod, the movable sleeve, the rotating rod, the connecting block, the supporting plate, the rotating shaft and the rotary knob, the interior of a drill hole is supported in four directions, the drill hole repairing strength is remarkably improved, and then the drill hole repairing effect is improved; the problem that in the prior art, drill hole repairing equipment is insufficient in drill hole repairing strength is solved.

Description

Technical Field

[0001] This utility model relates to the field of borehole repair technology, and more specifically, to a gas extraction borehole repair equipment. Background Technology

[0002] In the field of coal mine safety production and gas control, gas drainage drilling technology is one of the key means to ensure safe and efficient coal mining. By drilling a large number of boreholes in the coal seam, gas is extracted from the coal seam in advance, reducing the gas content and pressure, thereby effectively preventing major disasters such as gas outbursts and gas explosions. At the same time, the extracted gas can be utilized as a resource, improving the overall efficiency of coal mine production. Borehole repair is a repair work that uses repair equipment to fill the inside of the borehole. If the boreholes caused by gas drainage are not repaired in time, the long-term accumulation of boreholes will lead to a decrease in ground hardness, eventually causing ground collapse.

[0003] A search revealed that patent application CN202223267019.1 discloses a gas drainage borehole repair equipment, comprising a repair equipment body, a starting device, a discharge pipe, and a moving trough. The starting device is fixed to one side wall of the repair equipment body; the discharge pipe is fixed to the bottom of the repair equipment body; and a moving trough is formed on the outer side wall of the discharge pipe. During operation, the entire device fills the space between the top of the blocking plate and the ground with semi-solid material for repairing the borehole. When the bottom of the moving plate contacts the ground, the operator moves the repair equipment body upwards to repair the borehole generated by the gas drainage borehole. The entire device improves the repair effect on boreholes generated by gas drainage boreholes. The device reduces the occurrence of poor repair results and waste of semi-solid material due to poor retention of the semi-solid material inside the borehole. However, it still has the following drawbacks:

[0004] (1) The existing drilling repair device has insufficient strength, resulting in poor strength of drilling repair and inconvenience for grouting repair.

[0005] (2) The existing drilling repair devices are not good at sealing holes, which leads to unsatisfactory repair results.

[0006] Therefore, we have made improvements to this and proposed a gas extraction borehole repair equipment. Utility Model Content

[0007] The purpose of this invention is to address the problems of insufficient strength, inconvenience in grouting, and poor sealing effect in existing drill repair assembly.

[0008] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0009] Gas extraction borehole repair equipment to improve the above problems.

[0010] The present invention is as follows:

[0011] The device includes an inner plate, on which a rubber ring is fixedly connected. Two supports are symmetrically and fixedly connected to the inner plate. A connecting rod is fixedly connected to the end of each support away from the inner plate. A fixing frame is fixedly connected to the outer end of each connecting rod. A bidirectional screw is rotatably connected to the inner plate via a bearing. Two movable sleeves are symmetrically and threadedly connected to the bidirectional screw. Four rotating rods are rotatably connected to the two movable sleeves at equal intervals. A connecting block is rotatably connected to the top of each rotating rod. A support plate is fixedly connected to the outer ends of two adjacent connecting blocks laterally. A guide mechanism is provided on the bidirectional screw. A rotating shaft is fixedly connected to the end of the bidirectional screw away from the inner plate. The rotating shaft is rotatably connected to the fixing frame. A knob is fixedly connected to the outer end of the rotating shaft through the fixing frame. A threaded tube is sleeved on the rotating shaft. The outer end of the threaded tube is fixedly connected to the fixing frame. A sealing plate is slidably connected to the threaded tube. A nut is provided on the outer side of the sealing plate. The nut is threadedly connected to the threaded tube.

[0012] As a preferred technical solution of this utility model, the guiding mechanism includes a connecting sleeve sleeved at the center of the bidirectional screw, four guide frames are uniformly fixedly connected to the connecting sleeve, and guide rods are slidably connected inside each of the four guide frames. The outer ends of the guide rods are respectively fixedly connected to the support plate, and the front and rear guide frames are respectively fixedly connected to the bracket through connecting columns.

[0013] As a preferred technical solution of this utility model, a circular hole matching the bidirectional screw is provided at the center of the connecting sleeve.

[0014] As a preferred technical solution of this utility model, a grouting pipe is fixedly connected to the sealing plate, the grouting pipe penetrates the sealing plate and extends into the interior, and a return grouting pipe is fixedly connected to the top of the sealing plate.

[0015] As a preferred technical solution of this utility model, the interior of the threaded tube is designed as a hollow structure, and a through hole matching the threaded tube is opened at the center of the sealing plate.

[0016] As a preferred technical solution of this utility model, the cross-sectional shape of the support plate is arc-shaped, and the material of the support plate is high manganese steel.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] In the solution of this utility model:

[0019] 1. By using an inner plate, bracket, connecting rod, fixing frame, bidirectional screw, moving sleeve, rotating rod, connecting block, support plate, rotating shaft and knob, the interior of the borehole is supported in four directions, which significantly improves the strength of the borehole repair and thus improves the effect of the borehole repair, solving the problem of insufficient borehole repair strength in existing borehole repair equipment.

[0020] 2. By incorporating threaded pipes, sealing plates, nuts, grouting pipes, and return grout pipes, grouting can be conveniently injected into the borehole repair equipment, facilitating borehole sealing and improving the effectiveness of grouting repair. This solves the problems of inconvenient grouting repair and poor borehole sealing in existing technologies. Attached Figure Description

[0021] Figure 1 A schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0023] Figure 3 This is a cross-sectional structural diagram provided for this utility model;

[0024] Figure 4 Provided by this utility model Figure 3 Enlarged view of point A in the middle;

[0025] Figure 5 A schematic diagram of the guiding mechanism provided by this utility model;

[0026] Figure 6 A schematic diagram of the bottom structure provided by this utility model.

[0027] The image shows:

[0028] 1. Inner plate; 2. Rubber ring; 3. Bracket; 4. Connecting rod; 5. Fixing frame; 6. Double-acting screw; 7. Moving sleeve; 8. Rotating rod; 9. Connecting block; 10. Support plate; 11. Guide mechanism; 1101. Connecting sleeve; 1102. Guide frame; 1103. Guide rod; 1104. Connecting column; 12. Rotating shaft; 13. Knob; 14. Threaded pipe; 15. Sealing plate; 16. Nut; 17. Grouting pipe; 18. Return grout pipe. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, this embodiment proposes a gas extraction borehole repair device, including an inner plate 1. A rubber ring 2 is fixedly connected to the outer peripheral side wall of the inner plate 1. Two supports 3 are symmetrically and fixedly connected to the inner plate 1. A connecting rod 4 is fixedly connected to the end of each support 3 away from the inner plate 1. A fixing frame 5 is fixedly connected to the outer end of the connecting rod 4. A bidirectional screw 6 is rotatably connected to the inner plate 1 via a bearing. Two movable sleeves 7 are symmetrically and threadedly connected to the bidirectional screw 6. Four rotating rods 8 are rotatably connected to the two movable sleeves 7 at equal intervals. A connecting block 9 is rotatably connected to the top of each rotating rod 8. A support plate 10 is fixedly connected to the outer ends of two adjacent connecting blocks 9 laterally. A guide mechanism 11 is provided on the bidirectional screw 6. A rotating shaft 12 is fixedly connected to the end of the bidirectional screw 6 away from the inner plate 1. The rotating shaft 12 is rotatably connected to the fixing frame 5. The outer end of the rotating shaft 12 passes through the fixing frame 5. A fixed frame 5 is fixedly connected to a knob 13. A threaded tube 14 is sleeved on a rotating shaft 12. The outer end of the threaded tube 14 is fixedly connected to the fixed frame 5. A sealing plate 15 is slidably connected to the threaded tube 14. A nut 16 is provided on the outer side of the sealing plate 15. The nut 16 is threadedly connected to the threaded tube 14. By rotating the knob 13, the rotating shaft 12 is rotated, which in turn causes the bidirectional screw 6 to rotate. This causes the two movable sleeves 7 to move towards or away from each other along the bidirectional screw 6. The movable sleeves 7 drive the rotating rod 8 to move. The movement of the rotating rod 8 drives the connecting block 9 to move, which causes the support plate 10 to expand outward or contract inward, thereby supporting or loosening the inner wall of the borehole. After the support plate 10 supports the inner wall of the borehole, repair grout can be injected into the borehole through the grouting pipe 17. The repair grout fills the cracks and damaged parts in the borehole. Excess grout is discharged from the return grout pipe 18, completing the borehole repair.

[0031] like Figure 1 and Figure 5 As shown, in a preferred embodiment, based on the above method, the guide mechanism 11 further includes a connecting sleeve 1101 sleeved at the center of the bidirectional screw 6. Four guide frames 1102 are uniformly fixedly connected to the connecting sleeve 1101. Guide rods 1103 are slidably connected inside each of the four guide frames 1102. The outer ends of the guide rods 1103 are respectively fixedly connected to the support plate 10. The front and rear guide frames 1102 are respectively fixedly connected to the bracket 3 through connecting columns 1104. When the bidirectional screw 6 rotates and the moving sleeve 7 moves, the rotating rod 8 drives the support plate 10 to move. The guide rods 1103 slide inside the guide frames 1102 to provide guidance for the movement of the support plate 10, ensuring that the support plate 10 can only move in a straight line and ensuring the stability of the expansion or contraction of the support plate 10.

[0032] like Figure 1 and Figure 5As shown, in a preferred embodiment, based on the above method, a circular hole matching the bidirectional screw 6 is further provided at the center of the connecting sleeve 1101; the circular hole facilitates the assembly of the connecting sleeve 1101.

[0033] like Figure 1 , Figure 3 and Figure 6 As shown, in a preferred embodiment, based on the above method, a grouting pipe 17 is fixedly connected to the sealing plate 15. The grouting pipe 17 penetrates the sealing plate 15 and extends into the interior. A return grouting pipe 18 is fixedly connected to the top of the sealing plate 15. Repair grout can be injected into the borehole through the grouting pipe 17. During the injection of grout, when the grout in the borehole reaches a certain amount, the excess grout will be discharged from the return grouting pipe 18, thereby filling the borehole with sufficient repair grout.

[0034] like Figure 3 and Figure 4 As shown, in a preferred embodiment, based on the above method, the threaded tube 14 has a hollow structure design inside, and the sealing plate 15 has a through hole at the center that matches the threaded tube 14; the hollow structure design can provide space for the installation of the rotating shaft 12, and the through hole allows the sealing plate 15 to slide smoothly on the threaded tube 14, which facilitates the adjustment of the position of the sealing plate 15 and thus facilitates assembly.

[0035] like Figure 1 and Figure 2 As shown, in a preferred embodiment, based on the above method, the cross-sectional shape of the support plate 10 is arc-shaped, and the material of the support plate 10 is high manganese steel. The arc-shaped cross-sectional shape of the support plate 10 can better fit the inner wall of the borehole and improve the support effect on the inner wall of the borehole. High manganese steel has good strength and can withstand greater pressure when supporting the inner wall of the borehole, thereby improving the reliability of the repair.

[0036] Specifically, when using the borehole repair equipment for gas extraction: First, insert the inner plate 1 into the borehole, so that the two legs of the fixing frame 5 abut against the contact surface outside the hole. Then, fix the fixing frame 5 with the fixing bolt. Then, rotate the knob 13 to drive the rotating shaft 12 to rotate, which in turn causes the bidirectional screw 6 to rotate, so that the two moving sleeves 7 move inward along the bidirectional screw 6 at the same time. The moving sleeves 7 drive the rotating rod 8 to move, and the movement of the rotating rod 8 drives the connecting block 9 to move, so that the support plate 10 expands outward and contacts the inner wall of the borehole. Then, move the sealing plate 15 to seal the outer opening of the hole. Then, rotate the nut 16 to lock the sealing plate 15. Then, inject repair grout into the borehole through the grouting pipe 17. The repair grout fills the cracks and damaged parts in the borehole. Excess grout is discharged from the return grout pipe 18, completing the borehole repair.

[0037] All technical features in this embodiment can be freely combined according to actual needs.

[0038] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A gas extraction borehole repair device, comprising an inner plate (1), characterized in that, A rubber ring (2) is fixedly connected to the outer peripheral sidewall of the inner plate (1). Two supports (3) are symmetrically and fixedly connected to the inner plate (1). A connecting rod (4) is fixedly connected to the end of each of the two supports (3) away from the inner plate (1). A fixing frame (5) is fixedly connected to the outer end of the connecting rod (4). A double-acting screw (6) is rotatably connected to the inner plate (1) through a bearing. Two movable sleeves (7) are symmetrically and threadedly connected to the double-acting screw (6). Four rotating rods (8) are rotatably connected to the two movable sleeves (7) at equal intervals. A connecting block (9) is rotatably connected to the top of each rotating rod (8). The outer ends of two adjacent connecting blocks (9) are connected together. A support plate (10) is fixedly connected to the bidirectional screw (6), and a guide mechanism (11) is provided on the bidirectional screw (6). A rotating shaft (12) is fixedly connected to one end of the bidirectional screw (6) away from the inner plate (1). The rotating shaft (12) is rotatably connected to the fixed frame (5). The outer end of the rotating shaft (12) passes through the fixed frame (5) and is fixedly connected to a knob (13). A threaded tube (14) is provided on the outer sleeve of the rotating shaft (12). The outer end of the threaded tube (14) is fixedly connected to the fixed frame (5). A sealing plate (15) is slidably connected to the threaded tube (14). A nut (16) is provided on the outer side of the sealing plate (15). The nut (16) is threadedly connected to the threaded tube (14).

2. The gas drainage borehole repair equipment according to claim 1, characterized in that, The guiding mechanism (11) includes a connecting sleeve (1101) sleeved at the center of the bidirectional screw (6). Four guide frames (1102) are evenly fixedly connected to the connecting sleeve (1101). Guide rods (1103) are slidably connected inside each of the four guide frames (1102). The outer ends of the guide rods (1103) are fixedly connected to the support plate (10) respectively. The front and rear guide frames (1102) are fixedly connected to the bracket (3) through the connecting column (1104) respectively.

3. The gas drainage borehole repair equipment according to claim 2, characterized in that, The connecting sleeve (1101) has a circular hole at its center that matches the bidirectional screw (6).

4. The gas drainage borehole repair equipment according to claim 1, characterized in that, A grouting pipe (17) is fixedly connected to the sealing plate (15). The grouting pipe (17) penetrates the sealing plate (15) and extends into the interior. A return grouting pipe (18) is fixedly connected to the top of the sealing plate (15).

5. The gas drainage borehole repair equipment according to claim 1, characterized in that, The interior of the threaded tube (14) is designed as a hollow structure, and the center of the sealing plate (15) is provided with a through hole that matches the threaded tube (14).

6. The gas drainage borehole repair equipment according to claim 1, characterized in that, The cross-sectional shape of the support plate (10) is arc-shaped, and the material of the support plate (10) is high manganese steel.

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