CN220487510U - Double-pipeline drilling grouting drill rod - Google Patents

Abstract

The utility model relates to the technical field of grouting drill pipes, in particular to a double-pipeline drilling grouting drill pipe, which comprises the following components: the double-pipeline drilling grouting drill rod disclosed by the utility model has the advantages that the blocking of a grouting opening caused by broken stone or sundries generated during punching is avoided during use, the using effect and the construction effect of the device are improved, and meanwhile, the blocking piece can be driven to move through the screw rod during grouting, so that the grouting opening is opened, grouting is convenient to use and convenient to operate.

Description

Double-pipeline drilling grouting drill rod

Technical Field

The utility model relates to the technical field of grouting drill pipes, in particular to a double-pipeline drilling grouting drill pipe.

Background

Tunnel engineering often adopts ground grouting reinforcement technology. However, when the tunnel is buried deeply, the underground construction condition is complex or the ground does not have the construction condition, the underground grouting reinforcement technology is needed. Therefore, effective underground reinforcement of a weak stratum in front of the shield is one of important works for ensuring safe construction of the shield; the grouting method is based on the principle that the cementing grouting material is injected into the stratum to change the physical and mechanical properties of the stratum, so that the aim of impervious reinforcement is fulfilled.

In tunnel construction, when the construction drilling angle is the elevation angle, the cement paste filled in the hole can flow back out when not being solidified, and in order to avoid the situation, the cement is required to be solidified rapidly when grouting after drilling and forming holes. The common cement needs to be added with chemical coagulant to help the cement blocks to be quickly coagulated, so that the double-pipeline grouting drill rod is adopted for grouting.

The existing grouting drill rod needs to be perforated in the use process, however, broken stones or sundries generated in the perforation process easily cause blockage of a grouting outlet of the grouting drill rod, so that workers need to take out the drill rod to clean the drill rod, the drilling construction and grouting effects are poor, and the grouting drill rod is seriously damaged even.

Disclosure of Invention

The utility model aims to provide a double-pipeline drilling grouting drill rod, which aims to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a dual-tubing drill grouting drill stem comprising: the drilling machine comprises a first drill rod and a second drill rod, wherein a mounting bin is formed in the second drill rod, a mounting ring is fixedly connected to the inner wall of the mounting bin, two connecting ports are formed in the top of the mounting ring, two screw rods are rotationally connected to the bottom of the inner wall of the mounting bin, the outer wall of the measuring screw rod is respectively in contact with the inner walls of the two connecting ports, two limiting rods are fixedly connected to the bottom of the mounting ring and the bottom of the inner wall of the mounting bin, two sealing pieces are respectively arranged on the outer walls of the two screw rods and the two limiting rods, sealing grooves are formed in the bottom of the inner wall of the mounting bin, the outer walls of the two sealing pieces are respectively in sliding connection with the inner walls of the two sealing grooves, and two slurry spraying ports are formed in the outer wall of the second drill rod and are respectively communicated with the two sealing grooves.

A dual-tubing drill grouting drill pipe as described above: the top of the first drill rod is provided with a conveying opening, the bottom of the inner wall of the conveying opening is provided with a first conveying cavity and a second conveying cavity, the first conveying cavity and the second conveying cavity are penetrated, and the two conveying cavities are respectively located at two sides of the first conveying cavity.

A dual-tubing drill grouting drill pipe as described above: the inner wall fixedly connected with of delivery port blocks the piece, blocks the bottom of piece and is equipped with a plurality of elasticity arc boards, and a plurality of elasticity arc boards are located the inside of carrying chamber one and two carrying chamber two respectively.

A dual-tubing drill grouting drill pipe as described above: the outer wall of the first drill rod is provided with a thread groove, the top of the second drill rod is provided with a mixing bin, the inner wall of the mixing bin is provided with an internal thread, and the outer wall of the internal thread is in threaded connection with the inner wall of the thread groove.

A dual-tubing drill grouting drill pipe as described above: the inner wall bottom of mixing bin has seted up the mixing chamber, and four installing ports have been seted up to the inner wall in mixing chamber, and the inner wall of four installing ports rotates respectively and is connected with two installation poles, and four mixing plates of equal fixedly connected with of outer wall of two installation poles, and two guniting mouths are linked together with the mixing chamber.

A dual-tubing drill grouting drill pipe as described above: one of them the both ends of installation pole all fixedly connected with drive gear, two drive gears all are located the inside of installation storehouse, and the equal fixedly connected with driven gear in top of two lead screws, two driven gears mesh with two drive gears respectively.

A dual-tubing drill grouting drill pipe as described above: the bottom of drilling rod II has been seted up the connector, and the inside of connector is equipped with the drill bit, and the fixed orifices that is linked together has been seted up with the outer wall of drilling rod II to the outer wall of drill bit, and the inside of fixed orifices is equipped with the lock bolt, and lock nut has been connected to lock bolt's outer wall threaded connection.

Compared with the prior art, the utility model has the beneficial effects that: 1. through being provided with lead screw, collar, installation storehouse, gag lever post, spouting the thick liquid mouth, shutoff groove and shutoff piece, when using, the shutoff piece is located the shutoff groove and can be inside when drilling, can carry out the shutoff to the spouting the thick liquid mouth through the shutoff piece this moment to avoid rubble or debris that produces when punching cause the spouting the mouth to block up when using, improved the result of use and the construction effect of device, simultaneously when carrying out the slip casting, can drive the shutoff piece through the lead screw and remove for the spouting the mouth and open, thereby be convenient for slip casting use, the simple operation; 2. through being provided with first conveying cavity, second conveying cavity, blocking piece, elastic arc plate, thread groove and internal thread, when carrying out the slip casting, can make elastic arc plate take place deformation through the pressure of slip casting for slip casting and coagulant are carried respectively to first conveying cavity, second conveying cavity, avoid the slurry to solidify in advance in the transportation, and can avoid appearing the backward flow when grouting through elastic arc plate, improve the result of use of device, and can dismantle drilling rod one and drilling rod two through thread groove and internal thread, thereby be convenient for deposit the device; 3. through being provided with mixing chamber, the installation pole, driving gear, driven gear, the mixing plate, the drill bit, fixed orifices and locking bolt, during the slip casting, thick liquid and coagulant can drive the mixing plate and rotate when moving this moment with mixing chamber inside, thereby help the slip casting mix, and the mixing plate can drive driving gear and rotate when rotating, thereby make the lead screw rotate, and then open the shutoff piece automatically, so that the slip casting uses, need not staff's manual operation, the practicality of device has been improved, and can change the drill bit through locking bolt and fixed orifices, only need to change the drill bit when the drill bit damages need not to change the drilling rod is whole, reduce the wasting of resources.

Drawings

Fig. 1 is a schematic structural view of a dual-pipeline drill grouting drill stem.

Fig. 2 is a schematic view of the combination of a lock bolt and a mixing chamber in a dual-tubing drill grouting drill stem.

Fig. 3 is a schematic view of the combination of the blocking member and the thread groove in the dual-pipe drill grouting drill pipe.

Fig. 4 is a schematic structural view of a combination of a screw and a mixing plate in a dual-pipeline drill grouting drill stem.

In the figure: 1. a first drill rod; 2. a second drill rod; 3. a guniting port; 4. a drill bit; 5. an internal thread; 6. a mixing bin; 7. a mounting port; 8. a mounting bin; 9. a mixing chamber; 10. a fixing hole; 11. a connection port; 12. a locking bolt; 13. a lock nut; 14. a thread groove; 15. a first conveying cavity; 16. a second conveying cavity; 17. an elastic arc plate; 18. a blocking member; 19. a mounting ring; 20. a screw rod; 21. a driven gear; 22. a mixing plate; 23. a mounting rod; 24. a drive gear; 25. a limit rod; 26. a closure.

Detailed Description

Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers indicate identical or functionally similar elements. Although various aspects of the embodiments are illustrated in the accompanying drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

The word "exemplary" is used herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.

In addition, numerous specific details are set forth in the following examples in order to provide a better understanding of the present application. It will be understood by those skilled in the art that the present application may be practiced without some of these specific details. In some instances, well known methods, procedures, and components have not been described in detail so as not to obscure the subject matter of the present application.

Referring to fig. 1-4, in an embodiment of the present utility model, a dual-pipeline drilling grouting drill pipe includes: the drilling rod 1 and drilling rod 2, install bin 8 has been seted up to the inside of drilling rod 2, and the inner wall fixedly connected with collar 19 of install bin 8, two connector 11 have been seted up at the top of collar 19, and the inner wall bottom of install bin 8 rotates and is connected with two lead screws 20, the outer wall of measuring lead screw 20 contacts with the inner wall of two connector 11 respectively, the bottom of collar 19 and the inner wall bottom fixedly connected with two gag lever posts 25 of install bin 8, and the outer wall of two lead screws 20 and two gag lever posts 25 is equipped with two shutoff pieces 26 respectively, the volume shutoff groove has been seted up to the inner wall bottom of install bin 8, and the outer wall of two shutoff pieces 26 respectively with the inner wall sliding connection of two shutoff grooves, two guniting mouths 3 have been seted up to the outer wall of drilling rod 2, and two guniting mouths 3 are linked together with two shutoff grooves respectively.

It should be noted that, can drive the shutoff piece 26 through lead screw 20 and move during the use for shutoff piece 26 moves on gag lever post 25 and lead screw 20, thereby makes shutoff piece 26 shift out the inside of shutoff groove, makes spouting mouthful 3 can be linked together with mixing chamber 9, so that the slip casting, and can carry out spacingly to shutoff piece 26 through gag lever post 25 during the use, avoid shutoff piece 26 to rotate, guarantee its use, can block up spouting mouthful 3 before the shutoff piece 26 slip casting simultaneously, avoid spouting mouthful 3 to block up.

In the utility model, a conveying port is formed in the top of a first drill rod 1, a first through conveying cavity 15 and two second through conveying cavities 16 are formed in the bottom of the inner wall of the conveying port, and the two conveying cavities 16 are respectively positioned at two sides of the first conveying cavity 15.

In the utility model, a blocking piece 18 is fixedly connected to the inner wall of the conveying port, a plurality of elastic arc plates 17 are arranged at the bottom of the blocking piece 18, and the plurality of elastic arc plates 17 are respectively positioned in the first conveying cavity 15 and the second conveying cavities 16.

In the utility model, the outer wall of a first drill rod 1 is provided with a thread groove 14, the top of a second drill rod 2 is provided with a mixing bin 6, the inner wall of the mixing bin 6 is provided with an internal thread 5, and the outer wall of the internal thread 5 is in threaded connection with the inner wall of the thread groove 14.

Specifically, during grouting, the slurry and the coagulant are respectively injected into the first conveying cavity 15 and the second conveying cavity 16, so that the slurry is prevented from being coagulated in advance in the conveying process, and the elastic arc plate 17 is deformed through pressure during conveying, so that grouting operation is facilitated, and meanwhile, backflow can be avoided when the elastic arc plate 17 is used for grouting, and the using effect of the device is improved.

In the utility model, the bottom of the inner wall of a mixing bin 6 is provided with a mixing cavity 9, the inner wall of the mixing cavity 9 is provided with four mounting ports 7, the inner walls of the four mounting ports 7 are respectively and rotatably connected with two mounting rods 23, the outer walls of the two mounting rods 23 are fixedly connected with four mixing plates 22, and the two slurry spraying ports 3 are communicated with the mixing cavity 9.

In the utility model, the two ends of one mounting rod 23 are fixedly connected with the driving gears 24, the two driving gears 24 are positioned in the mounting bin 8, the top ends of the two screw rods 20 are fixedly connected with the driven gears 21, and the two driven gears 21 are respectively meshed with the two driving gears 24.

According to the utility model, a connecting port 11 is formed in the bottom of a second drill rod 2, a drill bit 4 is arranged in the connecting port 11, a fixing hole 10 communicated with the outer wall of the drill bit 4 and the outer wall of the second drill rod 2 is formed in the fixing hole 10, a locking bolt 12 is arranged in the fixing hole 10, and a locking nut 13 is connected to the outer wall of the locking bolt 12 in a threaded manner.

In a specific application scene, the slurry and the coagulant enter the mixing bin 6 through the first conveying cavity 15 and the second conveying cavity 16 and are primarily mixed, then enter the mixing cavity 9, the grouting can drive the mixing plate 22 to rotate, the mixing effect of the slurry and the coagulant is further achieved, the mixing plate 22 can drive the mounting rod 23 and the driving gear 24 to rotate when rotating, and the driving gear 24 is meshed with the driven gear 21, so that the screw rod 20 can be driven to rotate, the plugging piece 26 is opened, and grouting is further carried out.

Working principle: during grouting, the slurry and the coagulant are respectively injected into the first conveying cavity 15 and the second conveying cavity 16, the slurry is prevented from being coagulated in advance in the conveying process, the elastic arc plate 17 is deformed through pressure during conveying so as to facilitate grouting operation, the slurry and the coagulant can enter the mixing bin 6 through the first conveying cavity 15 and the second conveying cavity 16 and are initially mixed, then enter the mixing cavity 9, the grouting can drive the mixing plate 22 to rotate at the moment, the mixing effect of the slurry and the coagulant is further achieved, the mixing plate 22 can drive the mounting rod 23 and the driving gear 24 to rotate during rotation, and the driving gear 24 and the driven gear 21 are meshed, so that the screw rod 20 can drive the plugging piece 26 to move, the plugging piece 26 moves on the limiting rod 25 and the screw rod 20, the plugging piece 26 moves out of the inside of the plugging groove, the grouting opening 3 can be communicated with the mixing cavity 9, the plugging piece 26 is opened, and grouting is performed through the grouting opening 3.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (7)

1. A dual-tubing drill grouting drill stem, comprising: the drilling rod one (1) and drilling rod two (2), install bin (8) have been seted up to the inside of drilling rod two (2), and the inner wall fixedly connected with collar (19) of install bin (8), two connector (11) have been seted up at the top of collar (19), and the inner wall bottom of install bin (8) rotates and is connected with two lead screws (20), and the outer wall of measuring lead screw (20) contacts with the inner wall of two connector (11) respectively, the bottom of collar (19) and the inner wall bottom fixedly connected with two gag lever posts (25) of install bin (8), and the outer wall of two lead screws (20) and two gag lever posts (25) is equipped with two shutoff pieces (26) respectively, the volume shutoff groove has been seted up to the inner wall bottom of install bin (8), and the outer wall of two shutoff pieces (26) respectively with the inner wall sliding connection of two shutoff grooves, two slurry spraying ports (3) have been seted up to the outer wall of drilling rod two (2), and two slurry spraying ports (3) are linked together with two shutoff grooves respectively.

2. The double-pipeline drilling grouting drill rod according to claim 1, wherein a conveying port is formed in the top of the first drill rod (1), a first through conveying cavity (15) and two second through conveying cavities (16) are formed in the bottom of the inner wall of the conveying port, and the two second conveying cavities (16) are respectively located on two sides of the first conveying cavity (15).

3. The double-pipeline drilling grouting drill rod according to claim 2, wherein a blocking piece (18) is fixedly connected to the inner wall of the conveying port, a plurality of elastic arc plates (17) are arranged at the bottom of the blocking piece (18), and the elastic arc plates (17) are respectively located in the first conveying cavity (15) and the second conveying cavities (16).

4. The double-pipeline drilling grouting drill rod according to claim 1, wherein a thread groove (14) is formed in the outer wall of the first drill rod (1), a mixing bin (6) is formed in the top of the second drill rod (2), an inner thread (5) is formed in the inner wall of the mixing bin (6), and the outer wall of the inner thread (5) is in threaded connection with the inner wall of the thread groove (14).

5. The double-pipeline drilling grouting drill rod according to claim 4, wherein a mixing cavity (9) is formed in the bottom of the inner wall of the mixing bin (6), four mounting openings (7) are formed in the inner wall of the mixing cavity (9), two mounting rods (23) are respectively connected to the inner wall of the four mounting openings (7) in a rotating mode, four mixing plates (22) are fixedly connected to the outer walls of the two mounting rods (23), and the two grouting openings (3) are communicated with the mixing cavity (9).

6. The double-pipeline drilling grouting drill rod according to claim 5, wherein two ends of one mounting rod (23) are fixedly connected with driving gears (24), two driving gears (24) are located in the mounting bin (8), the top ends of two screw rods (20) are fixedly connected with driven gears (21), and the two driven gears (21) are meshed with the two driving gears (24) respectively.

7. The double-pipeline drilling grouting drill rod according to claim 1, wherein a connecting port (11) is formed in the bottom of the second drill rod (2), a drill bit (4) is arranged in the connecting port (11), a fixing hole (10) communicated with the outer wall of the drill bit (4) is formed in the outer wall of the second drill rod (2), a locking bolt (12) is arranged in the fixing hole (10), and a locking nut (13) is connected with the outer wall of the locking bolt (12) in a threaded mode.