Anti-blocking bidirectional drill rod jetting structure

Abstract

The utility model discloses a kind of anti-clogging two-way drill rod spud structure, including drill rod seat, filter assembly is arranged on drill rod seat, the side of filter screen plate is equipped with auxiliary assembly, by the filter assembly being set in drill rod seat, the impurity in slurry can be effectively intercepted, prevent these impurities from entering drill rod interior, solved the problem that impurity enters drill rod and leads to blockage, guarantee the continuity of grouting process, simultaneously, auxiliary assembly is set in filter assembly, can promptly remove the impurity on filter screen plate, prevent too much impurity from accumulating and affect filtration efficiency, simultaneously avoid the situation that impurity is difficult to clean due to long-term attachment on filter screen plate, without manual disassembly filter device to clean, greatly save maintenance time and manpower cost.

Description

Technical Field

[0001] This utility model relates to the field of drill pipe technology, and more specifically, to a bidirectional drill pipe spraying structure for preventing clogging. Background Technology

[0002] The bidirectional drill pipe shotcrete structure is an improved integrated drilling and injection equipment structure used in geological engineering, tunnel construction, foundation pit support and other scenarios. Its main function is to inject grout (such as cement grout, chemical grout, etc.) into the formation through the inside of the drill pipe during drilling or after drilling is completed, so as to consolidate the formation, stop water or reinforce it.

[0003] However, the aforementioned patents have certain shortcomings in actual use, although they can be used.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a two-way drill rod spraying structure to prevent clogging, so as to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] A clog-resistant bidirectional drill rod shotcrete structure includes a drill rod base, a filter assembly on the drill rod base, a faucet on the drill rod base, a grout inlet pipe connected to one end of the faucet, filter boxes at both ends of the grout inlet pipe, a fixing frame below the filter boxes, one end of the fixing frame positioned above the drill rod base, multiple filter screens on the inner wall of the filter boxes, and a delivery pipe running through one side of the filter boxes, one end of one delivery pipe connected to a delivery pump, and the other end of the delivery pipe connected to a grouting pump.

[0008] Furthermore, to better prevent clogging of the bidirectional drill rod spraying, an auxiliary component is provided on one side of the filter screen. The auxiliary component includes a cleaning plate on one side of the filter screen, multiple chip discharge ports at the bottom of the filter box, the inner wall of the chip discharge ports contacting one end of the cleaning plate, a collection trough at the bottom of the filter box, a collection box being snapped into the inner wall of the collection trough, and an electric telescopic rod above the cleaning plate, one end of which is attached to the filter box.

[0009] Furthermore, in order to better transport the slurry, one end of the faucet is equipped with an output pipe, one end of which passes through the drill pipe seat and is connected to a connecting joint. A connecting seat is provided on the surface of the connecting joint and the output pipe, and the connecting seat is located below the drill pipe seat.

[0010] Furthermore, in order to better transport the slurry, an inner drill rod is provided at one end of the connecting seat, and a slurry outlet pipe is provided on the inner wall of the inner drill rod. One end of the slurry outlet pipe is connected to one end of the connecting joint.

[0011] Furthermore, in order to better carry out drilling work, a drill bit is installed at one end of the inner drill rod, and the slurry outlet pipe is connected to the drill bit through one end.

[0012] Furthermore, to further improve stability, the surface of the inner drill rod is provided with copper sleeves that are evenly distributed. The surface of the copper sleeves is connected to the outer drill rod. One end of the outer drill rod is connected to the second connecting seat, and one end of the second connecting seat is connected to the first connecting seat.

[0013] Furthermore, to further improve sealing, sealing ring one and sealing ring two are respectively provided on the surface of the outer drill pipe and the inner drill pipe, and inner and outer drill pipe protective sleeves are provided on the surface of sealing ring one and sealing ring two.

[0014] The beneficial effects of this utility model are as follows:

[0015] (1) By setting the filter assembly in the drill pipe seat, impurities in the slurry can be effectively intercepted, preventing these impurities from entering the drill pipe. This solves the problem of impurities entering the drill pipe and causing blockage, ensuring the continuity of the grouting process. At the same time, the auxiliary components set in the filter assembly can remove impurities on the filter screen in a timely manner, preventing excessive accumulation of impurities from affecting the filtration efficiency. It also avoids the situation where impurities are difficult to clean due to long-term adhesion to the filter screen. There is no need to manually disassemble the filter device for cleaning, which greatly saves maintenance time and labor costs.

[0016] (2) By setting sealing ring one and sealing ring two on the outer drill rod and the inner drill rod, as well as the inner and outer drill rod protective sleeves, leakage of grout during the internal transport of the drill rod can be effectively prevented, ensuring that the grout is transported along the predetermined path, reducing the possibility of the drill rod being damaged by external factors (such as friction, collision, etc.) during drilling and grouting, reducing the interruption of grouting due to equipment failure, thereby improving construction efficiency and project quality. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the main body and filter assembly of an anti-clogging bidirectional drill rod shotcrete structure according to an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of a filter component part of an anti-clogging bidirectional drill rod shotcrete structure according to an embodiment of the present invention. Figure 1 ;

[0020] Figure 3 This is a schematic diagram of a filter component part of an anti-clogging bidirectional drill rod shotcrete structure according to an embodiment of the present invention. Figure 2 ;

[0021] Figure 4 This is a schematic diagram of the filter assembly and auxiliary assembly of a clog-resistant bidirectional drill rod shotcrete structure according to an embodiment of the present utility model;

[0022] Figure 5 yes Figure 1 Enlarged structural diagram at point a.

[0023] In the picture:

[0024] 1. Drill rod holder; 2. Filter assembly; 201. Water tap; 202. Grout inlet pipe; 203. Filter box; 204. Fixing frame; 205. Filter screen; 206. Delivery pipe; 207. Delivery pump; 208. Grouting pump; 3. Auxiliary components; 301. Cleaning plate; 302. Collection box; 303. Electric telescopic rod; 4. Output pipe; 5. Connecting joint; 6. Connecting seat one; 7. Inner drill rod; 8. Grout outlet pipe; 9. Drill bit; 10. Copper sleeve; 11. Outer drill rod; 12. Connecting seat two; 13. Sealing ring one; 14. Sealing ring two; 15. Inner and outer drill rod protective sleeves. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1:

[0027] like Figures 1-4As shown, a clog-resistant bidirectional drill rod grouting structure according to an embodiment of the present invention includes a drill rod seat 1, a filter assembly 2 on the drill rod seat 1, and a faucet 201 on the drill rod seat 1 for auxiliary control of slurry and gas. One end of the faucet 201 is connected to a slurry inlet pipe 202 for conveying slurry and gas. Filter boxes 203 are provided at both ends of the slurry inlet pipe 202. A fixing frame 204 is provided below the filter box 203 for fixing the filter box 203. One end of the fixing frame 204 is located above the drill rod seat 1. Three filter screens 205 are provided on the inner wall of the filter box 203 for filtering impurities in the slurry and gas. A conveying pipe 206 passes through one side of the filter box 203 for conveying slurry and gas. One end of one conveying pipe 206 is connected to a conveying pump 207, and one end of the other conveying pipe 206 is connected to a grouting pump 208.

[0028] Example 2:

[0029] like Figure 1 As shown in the figure, according to an embodiment of the present invention, an anti-clogging bidirectional drill rod spraying structure is provided with an auxiliary component 3 on one side of the filter screen plate 205. The auxiliary component 3 includes a cleaning plate 301 on one side of the filter screen plate 205 for cleaning the filter screen plate 205. Three chip discharge ports are provided below the filter box 203 for discharging the cleaned impurities. The inner wall of the chip discharge port is in contact with one end of the cleaning plate 301. A collection groove is provided below the filter box 203. A collection box 302 is engaged with the inner wall of the collection groove for collecting the cleaned impurities. An electric telescopic rod 303 is provided above the cleaning plate 301 for driving the cleaning plate 301. One end of the electric telescopic rod 303 is provided on the filter box 203.

[0030] Example 3:

[0031] like Figures 1-2 , Figure 4 As shown, according to an embodiment of the present invention, a two-way drill rod grouting structure for preventing blockage is provided at one end of the faucet 201, which is used to transport a mixture of slurry and gas. One end of the output pipe 4 passes through the drill rod seat 1 and is connected to a connecting joint 5. A connecting seat 6 is provided on the surface of the connecting joint 5 and the output pipe 4. The connecting seat 6 is located below the drill rod seat 1. An inner drill rod 7 is provided at one end of the connecting seat 6. A slurry outlet pipe 8 is provided on the inner wall of the inner drill rod 7 for transporting a mixture of slurry and gas. The inner diameter of the slurry outlet pipe 8 is 25mm. One end of the slurry outlet pipe 8 is connected to one end of the connecting joint 5.

[0032] One end of the inner drill rod 7 is equipped with a drill bit 9, and one end of the slurry pipe 8 is connected to the drill bit 9. The surface of the inner drill rod 7 is provided with copper sleeves 10 distributed at equal intervals, with one copper sleeve 10 every three meters. The surface of the copper sleeve 10 is connected to an outer drill rod 11, and one end of the outer drill rod 11 is connected to a connecting seat 2 12. One end of the connecting seat 2 12 is connected to the connecting seat 1 6.

[0033] Sealing ring 13 and sealing ring 2 14 are respectively provided on the surface of the outer drill rod 11 and the inner drill rod 7. Inner and outer drill rod protective sleeves 15 are provided on the surface of sealing ring 13 and sealing ring 2 14.

[0034] The electric telescopic pole 303, grouting pump 208, and conveying pump 207 are electrically connected to a controller (not shown in the diagram) during actual use. The controller is a PLC programmable logic controller or a microcontroller. By writing a suitable control program, the electrical components connected electrically can be precisely controlled. The above structure is electrically connected to an external power supply during actual use.

[0035] The electric telescopic rod 303, grouting pump 208, conveying pump 207, and drill bit 9 are existing technologies and will not be described in detail. The specific models and specifications need to be selected and determined according to the actual specifications of the device.

[0036] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0037] In summary, with the help of the above-mentioned technical solution of this utility model, during operation, the slurry and gas are respectively transported to the delivery pipe 206 through the grouting pump 208 and the delivery pump 207, and then enter the filter box 203. The filter box 203 has three layers of filter screens 205 on its inner wall, forming a multi-level filtration barrier. Impurities are intercepted layer by layer. The pure slurry enters through the slurry inlet pipe 202, and the pressurized slurry is transported to the connecting joint 5 through the outlet pipe 4. The slurry enters the slurry outlet pipe 8 of the inner drill rod 7 from the connecting joint 5. The slurry outlet pipe 8 penetrates the inner drill rod 7 and reaches the end of the drill bit 9.

[0038] The inner drill rod 7 and the outer drill rod 11 are fixed at intervals by copper sleeves 10 to enhance rigidity. The sealing rings 13 and 14 set on the inner drill rod 7 and the outer drill rod 11 respectively seal the interface of the inner drill rod 7 and the outer drill rod 11. At the same time, the inner and outer drill rod protective sleeves 15 set on the sealing rings 13 and 14 resist external friction and collision. The slurry is sprayed out from the drill bit 9. At the same time, the drill bit 9 rotates and drills into the formation. The slurry solidifies the formation in real time, realizing the integrated drilling and injection operation.

[0039] When the filter is cleaned regularly, the cleaning plate 301 is driven by the electric telescopic rod 303 to scrape off impurities along the surface of the filter screen 205. The scraped-off impurities fall into the collection tank through the chip discharge port at the bottom of the filter box 203. The collection tank has a removable collection box 302 inside to store the impurities. The filter device does not need to be disassembled throughout the process, which improves maintenance efficiency.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An anti-clogging bidirectional drill pipe jetting structure, characterized in that, The system includes a drill rod seat (1), a filter assembly (2) on the drill rod seat (1), a faucet (201) on the drill rod seat (1), a grout inlet pipe (202) connected to one end of the faucet (201), filter boxes (203) on both ends of the grout inlet pipe (202), a fixing frame (204) below the filter box (203), one end of the fixing frame (204) above the drill rod seat (1), multiple filter screens (205) on the inner wall of the filter box (203), a conveying pipe (206) passing through one side of the filter box (203), a conveying pump (207) connected to one end of one of the conveying pipes (206), and a grouting pump (208) connected to one end of the other conveying pipe (206).

2. The anti-clogging bidirectional drill rod shotcrete structure according to claim 1, characterized in that, An auxiliary component (3) is provided on one side of the filter screen (205). The auxiliary component (3) includes a cleaning plate (301) on one side of the filter screen (205), multiple chip discharge ports are provided below the filter box (203), the inner wall of the chip discharge port is in contact with one end of the cleaning plate (301), a collection groove is provided below the filter box (203), a collection box (302) is attached to the inner wall of the collection groove, and an electric telescopic rod (303) is provided above the cleaning plate (301), one end of the electric telescopic rod (303) is set on the filter box (203).

3. The anti-blocking bidirectional drill rod jetting structure according to claim 2, characterized in that, One end of the faucet (201) is provided with an output pipe (4), and one end of the output pipe (4) passes through the drill rod seat (1) and is connected to a connecting joint (5). The surface of the connecting joint (5) and the output pipe (4) is provided with a connecting seat (6), and the connecting seat (6) is located below the drill rod seat (1).

4. The anti-blocking bidirectional drill rod jetting structure according to claim 3, characterized in that, One end of the connecting seat (6) is provided with an inner drill rod (7), and the inner wall of the inner drill rod (7) is provided with a slurry outlet pipe (8). One end of the slurry outlet pipe (8) is connected to one end of the connecting joint (5).

5. The anti-jamming bidirectional drill rod jetting structure according to claim 4, characterized in that, One end of the inner drill rod (7) is equipped with a drill bit (9), and one end of the slurry outlet pipe (8) is connected to the drill bit (9) through.

6. The anti-jamming bidirectional drill rod jetting structure according to claim 5, characterized in that, The inner drill rod (7) is provided with copper sleeves (10) distributed at equal intervals. The surface of the copper sleeves (10) is connected to the outer drill rod (11). One end of the outer drill rod (11) is connected to the second connecting seat (12). One end of the second connecting seat (12) is connected to the first connecting seat (6).

7. The anti-jamming bidirectional drill rod jetting structure according to claim 6, characterized in that, The outer drill rod (11) and the inner drill rod (7) are respectively provided with sealing ring one (13) and sealing ring two (14), and the surfaces of sealing ring one (13) and sealing ring two (14) are provided with inner and outer drill rod protective sleeves (15).

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