Anti-floating anchor rod reaming device

Abstract

The invention discloses an anti-floating anchor rod reaming device, which relates to the technical field of building construction, and comprises a reaming mechanism for reaming the bottom of a guide hole of an anti-floating anchor rod; the connecting mechanism is connected to the top of the reaming mechanism and used for transmitting torque and axial force, achieving circulation of slurry and water and taking away muck; the anti-blocking mechanism is used for preventing the lower end of the connecting mechanism from being blocked by muck; and the anti-falling mechanisms are used for preventing the large-volume muck from falling in the connecting mechanism under the influence of gravity, and each anti-falling mechanism comprises a grating used for intercepting the large-volume muck. According to the anti-floating anchor rod reaming device, a reaming structure can be conveniently unfolded in the guide hole, reaming operation is conducted on the guide hole, meanwhile, muck can be prevented from falling back into the guide hole, follow-up grouting and installation operation of the anti-floating anchor rod are not affected, the blocked muck suction opening can be cleaned without pulling out the anti-floating anchor rod reaming device from the guide hole, and the time for cleaning blockage is saved.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to an anti-floating anchor rod hole enlarging device. Background Art

[0002] The anti-floating anchor hole enlarging device is a key device used to enlarge the anchor hole during the anti-floating anchor construction process. It is mainly composed of an enlarging drill bit and a drill rod, and needs to be used in conjunction with an external suction pump and a driving device. The external driving device drives the anti-floating anchor hole enlarging device to rotate and excavate to complete the hole enlarging operation, and the suction pump cooperates with the drill rod to discharge the mud and debris formed during the hole enlarging operation; The patent document with publication number "CN218324749U" discloses "a device for expanding the hole of an anti-floating anchor, comprising: an expanding drill bit, suitable for expanding the hole at the bottom of the guide hole of the anti-floating anchor; a drill rod, which is a hollow tube with an inner channel and is connected to the expanding drill bit. The device adopts suction hole cleaning, so that the water flow in the base hole of the anti-floating anchor, which is small at the top and large at the bottom, only forms a one-way flow, thereby improving the efficiency and effect of hole cleaning. In addition, it also has the advantages of saving drilling rig power, improving drilling efficiency, and high working reliability." Although it has the effect of "water flow only forms a one-way flow, thereby improving the efficiency and effect of hole cleaning. In addition, it also has the advantages of saving drilling rig power, improving drilling efficiency, and high working reliability", when the suction pump stops working, the large volume of debris inside the drill rod will be affected by gravity and will fall back into the guide hole, causing debris residue, which will have an adverse effect on the subsequent installation of anti-floating anchors and grouting operations. Summary of the invention

[0003] The main purpose of the present invention is to provide an anti-floating anchor rod hole enlarging device, which can effectively solve the technical problems raised by the background technology.

[0004] To achieve the above object, the technical solution adopted by the present invention is: An anti-floating anchor rod hole enlarging device, comprising an enlarging mechanism for performing hole enlarging operation at the bottom of the guide hole of the anti-floating anchor rod; a connecting mechanism connected to the top of the enlarging mechanism for transmitting torque and axial force, realizing mud and water circulation and taking away debris; an anti-blocking mechanism for preventing the lower end of the connecting mechanism from being blocked by debris; and a plurality of anti-falling mechanisms for preventing large-volume debris from falling under the influence of gravity inside the connecting mechanism; The anti-falling mechanism includes a grille for intercepting large volumes of debris; an anti-standing baffle plate arranged at the rear end of the grille for preventing the grille from remaining vertical and not falling; and an anti-falling baffle rod arranged at the front of the bottom of the grille for preventing the grille from rotating below the horizontal plane.

[0005] Specifically, large volumes of debris in the mud are intercepted to prevent the debris from falling back into the guide hole and affecting subsequent grouting and installation of anti-floating anchors.

[0006] As a further solution of the present invention, the reaming mechanism includes a drill bit for excavating a borehole; a drill shank fixedly mounted on the top of the drill bit for transmitting torque and axial force; a chuck fixedly mounted on the top of the drill shank; and a sleeve sleeved on the outside of the chuck.

[0007] As a further solution of the present invention, the reaming mechanism also includes a plurality of upper reaming links equidistantly arranged and movably connected to the bottom of the casing; a plurality of lower reaming links movably connected to the upper reaming links; a plurality of reaming teeth equidistantly arranged and fixedly mounted on the outer wall of the lower reaming links; and a spring sleeved on the outside of the drill shank, the upper and lower ends of the spring being fixedly connected to the drill bit and the casing respectively.

[0008] Specifically, the drill bit is used to rotate and dig during the rotation process, and the lower reaming connecting rod is used in conjunction with the reaming teeth to expand the hole, thereby completing the reaming operation.

[0009] As a further solution of the present invention, the connecting mechanism includes a drill rod for transmitting torque, axial force and providing mud and water circulation and slag flow channels; an upper connecting piece fixedly installed on the top of the drill rod for connecting an external drive device and a suction pump; a lower connecting piece fixedly installed on the bottom of the drill rod, the lower connecting piece is fixedly connected to the casing by a plurality of hexagon socket bolts; and a slag suction port for sucking mud and slag.

[0010] Specifically, the slag is sucked into the channel of the drill pipe through the slag suction port along with the mud and is continuously transported upward until it is discharged through the top end of the upper connecting piece.

[0011] As a further solution of the present invention, the anti-clogging mechanism includes a pushing piece for pushing out the slag at the slag suction port, the two sides of the pushing piece are movably connected to the drill rod through a rotating shaft at the upper end, and the pushing piece is installed inside the slag suction port; and a torsion spring is arranged at the connection between the pushing piece and the slag suction port to drive the pushing piece to reset.

[0012] As a further solution of the present invention, the anti-blocking mechanism also includes a ring movably installed at the bottom of the top silt piece; and a traction rope fixedly installed on the outside of the ring for pulling the top silt piece for dredging, and the end of the traction rope is fixedly connected to the clamp.

[0013] Specifically, the blocked slag suction port can be cleaned without pulling out the anti-floating anchor rod hole expanding device from the guide hole, thus saving the time for cleaning the blockage.

[0014] As a further solution of the present invention, the anti-falling mechanism is installed inside the drill rod, and the two sides of the grid are movably connected to the inner wall of the drill rod through a rotating shaft, the anti-vertical baffle is fixedly connected to the rear end inner wall of the drill rod, the anti-falling baffle rod is fixedly connected to the front end inner wall of the drill rod, the anti-falling baffle rod is arranged in a right-angled triangular column shape, and the direction of the inclined surface of the anti-falling baffle rod is the same as the direction of flow of mud and slag.

[0015] The beneficial effects of the present invention are: The present invention arranges a drill bit, a drill shank, a chuck, a casing, an upper reaming connecting rod, a lower reaming connecting rod and reaming teeth in the reaming mechanism. After the external driving device is started, the reaming mechanism is driven to rotate. After the casing is subjected to pressure from the top, it slides downward along the chuck, the spring is compressed, and the upper reaming connecting rod and the lower reaming connecting rod are expanded toward the periphery. At the same time, the casing rotates while driving the chuck to rotate, thereby driving the entire reaming mechanism to rotate. During the rotation process, the drill bit is used to rotate for excavation, and the lower reaming connecting rod is used to cooperate with the reaming teeth to expand the hole, so as to facilitate the expansion of the reaming structure inside the lead hole and perform the reaming operation on the lead hole. The present invention arranges an anti-falling mechanism inside the drill pipe. When the mud is flowing, the grille is in a vertical state. When the suction pump stops working, the mud flows back. The grille is blocked by the anti-falling blocking rod during rotation and falls back to a horizontal state, thereby intercepting a large volume of debris in the mud and preventing the debris from falling back into the guide hole, which affects the subsequent grouting and installation of anti-floating anchor rods. The present invention arranges an anti-clogging mechanism to cooperate with the hole expanding mechanism. After the external driving equipment is shut down, the anti-floating anchor rod hole expanding device is lifted up a certain distance, the spring drives the drill bit to move downward, the upper hole expanding connecting rod and the lower hole expanding connecting rod are reset to a retracted state, and at the same time the clamping head moves downward to drive the traction rope to pull the silt pushing part to rotate into the slag suction port, so as to push out the mud and slag blocked at the slag suction port. The blocked slag suction port can be cleaned without pulling the anti-floating anchor rod hole expanding device out of the guide hole, thereby saving the time for cleaning the blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an anti-floating anchor rod hole enlarging device of the present invention; Figure 2 It is a structural schematic diagram of a hole expansion mechanism in an anti-floating anchor hole expansion device of the present invention in an initial state; Figure 3 The present invention is an anti-floating anchor rod expansion device Figure 2 Structural breakdown diagram of the middle hole expansion mechanism; Figure 4 It is a structural schematic diagram of a hole expansion mechanism in an anti-floating anchor hole expansion device of the present invention in a working state; Figure 5 It is a structural schematic diagram of an anti-floating anchor rod hole enlarging device in a working state according to the present invention; Figure 6 It is a structural schematic diagram of an anti-blocking mechanism in an anti-floating anchor rod hole enlarging device of the present invention in a non-desilting state; Figure 7 It is a structural schematic diagram of a connection mechanism in an anti-floating anchor rod hole enlarging device of the present invention; Figure 8It is a schematic diagram of the internal structure of a drill rod in an anti-floating anchor rod hole enlarging device of the present invention; Fig. 9 It is a structural schematic diagram of an anti-fallback mechanism in an anti-floating anchor rod hole enlarging device of the present invention in a working state; Fig.10 It is a structural schematic diagram of an anti-fallback mechanism in an anti-floating anchor rod hole enlarging device of the present invention in an initial state; Fig.11 The present invention is a kind of anti-floating anchor rod expansion device Fig. 9 Magnified view of area A.

[0017] In the figure: 1. Hole expansion mechanism; 11. Drill bit; 12. Drill handle; 13. Chuck; 14. Casing; 15. Spring; 16. Upper hole expansion connecting rod; 17. Lower hole expansion connecting rod; 18. Hole expansion teeth; 2. Connecting mechanism; 21. Drill rod; 22. Upper connecting piece; 23. Lower connecting piece; 24. Slag suction port; 3. Anti-blocking mechanism; 31. Anti-sludge piece; 32. Ring; 33. Traction rope; 34. Torsion spring; 4. Anti-falling mechanism; 41. Grille; 42. Anti-standing baffle; 43. Anti-falling baffle rod. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0019] like Figure 1-Figure 11 As shown, an anti-floating anchor rod expansion device, please refer to Figure 1 , Figure 5 , Figure 8 , Fig. 9 , Fig.10 and Fig.11 , including a hole-expanding mechanism 1 for performing hole-expanding operation at the bottom of the lead-in hole of the anti-floating anchor rod; a connecting mechanism 2 connected to the top of the hole-expanding mechanism 1 for transmitting torque and axial force, realizing mud and water circulation and taking away slag; an anti-blocking mechanism 3 for preventing the lower end of the connecting mechanism 2 from being blocked by slag; and a plurality of anti-falling mechanisms 4 for preventing large-volume slag from falling under the influence of gravity inside the connecting mechanism 2; The anti-fall mechanism 4 includes a grille 41 for intercepting large volumes of debris; an anti-standing baffle 42 arranged at the rear end of the grille 41 to prevent the grille 41 from remaining in a vertical state and not falling back; and an anti-fall baffle rod 43 arranged at the front of the bottom of the grille 41 to prevent the grille 41 from rotating below the horizontal plane.

[0020] Specifically, in the initial state, the reaming mechanism 1 is in an undeployed state, the grille 41 in the anti-fallback mechanism 4 is in a horizontal state, the external driving device is connected through the connecting mechanism 2, the suction pump is connected to the upper end of the connecting mechanism 2 and communicated with the channel inside the connecting mechanism 2, after the anti-floating anchor reaming device is inserted into the guide hole, clean water is poured into the guide hole, and the suction pump and the external driving device are started at the same time. The external driving device starts to drive the connecting mechanism 2 to rotate, and then drives the reaming mechanism 1 to rotate and dig to perform the reaming operation. In the working state, the reaming Mechanism 1 is in the expanded state. At this time, the debris generated during the rotary excavation process is mixed with clean water to form mud, which is pumped into the channel of the connecting mechanism 2 by the suction pump and finally discharged from the guide hole through the upper end of the connecting mechanism 2. When the mud is flowing, the grille 41 is in a vertical state. When the suction pump stops working, the mud flows back. The grille 41 is blocked by the anti-fall baffle rod 43 during rotation and falls back to a horizontal state, intercepting a large volume of debris in the mud to prevent the debris from falling back into the guide hole and affecting the subsequent grouting and anti-floating anchor installation operations.

[0021] Please refer to Figure 3 and Figure 4 The reaming mechanism 1 includes a drill bit 11 for drilling a hole; a drill shank 12 fixedly mounted on the top of the drill bit 11 for transmitting torque and axial force; a chuck 13 fixedly mounted on the top of the drill shank 12; and a sleeve 14 sleeved on the outside of the chuck 13.

[0022] Please refer to Figure 3 and Figure 4 The reaming mechanism 1 also includes a plurality of upper reaming links 16 movably connected to the bottom of the casing 14 in an equidistant arrangement; a plurality of lower reaming links 17 movably connected to the upper reaming links 16; a plurality of reaming teeth 18 equidistantly arranged and fixedly mounted on the outer wall of the lower reaming links 17; and a spring 15 sleeved on the outside of the drill shank 12, the upper and lower ends of the spring 15 being fixedly connected to the drill bit 11 and the casing 14 respectively.

[0023] Specifically, when the anti-floating anchor rod reaming device is in working condition, the casing 14 slides downward along the clamping head 13 after receiving the pressure from the top, the spring 15 is compressed, and the upper reaming link 16 and the lower reaming link 17 are expanded to the periphery. At the same time, the casing 14 rotates while driving the clamping head 13 to rotate, thereby driving the entire reaming mechanism 1 to rotate. During the rotation process, the drill bit 11 is used to rotate and advance, and the lower reaming link 17 is used to cooperate with the reaming teeth 18 to reame, thereby completing the reaming operation.

[0024] Please refer to Figure 7The connecting mechanism 2 includes a drill rod 21 for transmitting torque, axial force and providing a mud and water circulation and slag flow channel; an upper connecting piece 22 fixedly installed on the top of the drill rod 21 for connecting an external drive device and a suction pump; a lower connecting piece 23 fixedly installed on the bottom of the drill rod 21, and the lower connecting piece 23 is fixedly connected to the casing 14 through a plurality of hexagon socket bolts; and a slag suction port 24 for sucking mud and slag.

[0025] Specifically, after clean water is poured into the guide hole along the outer wall of the drill pipe 21, it is mixed with the debris formed during the hole expansion operation to form mud. After the suction pump is started, suction is generated, and the debris is sucked into the channel of the drill pipe 21 through the debris suction port 24 along with the mud and continuously transported upward until it is discharged through the top of the upper connecting piece 22.

[0026] Please refer to Figure 1 and Figure 6 The anti-clogging mechanism 3 includes a silt-pushing piece 31 for pushing out the slag at the slag suction port 24. The upper ends of both sides of the silt-pushing piece 31 are movably connected to the drill rod 21 through a rotating shaft, and the silt-pushing piece 31 is installed inside the slag suction port 24; and a torsion spring 34 is arranged at the connection between the silt-pushing piece 31 and the slag suction port 24 for driving the silt-pushing piece 31 to return to its original position.

[0027] Please refer to Figure 1 and Figure 6 The anti-clogging mechanism 3 also includes a ring 32 movably mounted on the bottom of the top silt member 31; and a traction rope 33 fixedly mounted on the outside of the ring 32 for pulling the top silt member 31 for dredging, and the end of the traction rope 33 is fixedly connected to the clamp 13.

[0028] Specifically, when the anti-floating anchor rod reaming device is in working condition, the torsion spring 34 drives the clamping head 13 to reset to a horizontal state. At this time, the clamping head 13 is in a non-dredging state, and the slag suction port 24 is in an open state, which is convenient for sucking mud and slag. When no mud and slag are discharged from the top of the upper connecting member 22, it indicates that the slag suction port 24 is blocked. At this time, the external driving equipment is shut down, and the anti-floating anchor rod reaming device is lifted up by one end. The spring 15 drives the drill bit 11 to move downward, and the upper reaming connecting rod 16 and the lower reaming connecting rod 17 are reset to a retracted state. At the same time, the clamping head 13 moves downward, driving the traction rope 33 to pull the silt-removing member 31 to rotate into the slag suction port 24, and the mud and slag blocked at the slag suction port 24 are pushed out. The blocked slag suction port 24 can be cleaned without pulling the anti-floating anchor rod reaming device out of the guide hole, saving time for cleaning the blockage.

[0029] Please refer to Figure 8 , Fig. 9 , Fig.10 and Fig.11The anti-falling mechanism 4 is installed inside the drill rod 21, and the two sides of the grid 41 are movably connected to the inner wall of the drill rod 21 through a rotating shaft, the anti-standing baffle 42 is fixedly connected to the rear end inner wall of the drill rod 21, and the anti-falling baffle rod 43 is fixedly connected to the front end inner wall of the drill rod 21. The anti-falling baffle rod 43 is arranged in a right-angled triangular column shape, and the direction of the inclined surface of the anti-falling baffle rod 43 is the same as the direction of the flow of mud and slag.

[0030] How it works Specifically, in the initial state, the hole expansion mechanism 1 is in an unexpanded state, the grille 41 in the anti-fallback mechanism 4 is in a horizontal state, the torsion spring 34 drives the clamping head 13 to return to a horizontal state, at this time the clamping head 13 is in a non-dredging state, the slag suction port 24 is in an open state, the external driving device is connected through the connecting mechanism 2, the suction pump is connected to the upper end of the connecting mechanism 2 and communicated with the channel inside the connecting mechanism 2, after the anti-floating anchor rod hole expansion device is inserted into the guide hole, clean water is poured into the guide hole, and the suction pump and the external driving device are started at the same time. The upper driving device starts to drive the connecting mechanism 2 to rotate. The casing 14 is subjected to the pressure from the top and slides downward along the clamping head 13. The spring 15 is compressed, and the upper reaming connecting rod 16 and the lower reaming connecting rod 17 are expanded to the periphery. At the same time, the casing 14 rotates while driving the clamping head 13 to rotate, thereby driving the entire reaming mechanism 1 to rotate. During the rotation process, the drill bit 11 is used to rotate and dig, and the lower reaming connecting rod 17 is used to cooperate with the reaming teeth 18 to expand the hole. At this time, the slag generated during the rotation and digging process is mixed with clean water to form mud, and the slag follows the mud through The mud is sucked into the channel of the drill pipe 21 through the suction port 24 and continuously transported upward, and finally discharged from the guide hole through the upper end of the connecting mechanism 2. When the mud is flowing, the grid 41 is in a vertical state. When the suction pump stops working, the mud flows back. The grid 41 is blocked by the anti-fall blocking rod 43 during rotation and falls back to a horizontal state, intercepting a large volume of slag in the mud to prevent the slag from falling back into the guide hole and affecting the subsequent grouting and installation of anti-floating anchor rods. When no mud and slag are discharged from the top of the upper connecting piece 22, it means that The slag suction port 24 is blocked. At this time, the external driving equipment is shut down, the anti-floating anchor rod reaming device is lifted up a distance, the spring 15 drives the drill bit 11 to move downward, the upper reaming link 16 and the lower reaming link 17 are reset to a retracted state, and at the same time the clamping head 13 moves downward to drive the traction rope 33 to pull the silt-removing part 31 to rotate into the slag suction port 24, and the mud and slag blocked at the slag suction port 24 are pushed out. The blocked slag suction port 24 can be cleaned without pulling the anti-floating anchor rod reaming device out of the guide hole, saving the time for cleaning the blockage.

[0031] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An anti-floating anchor rod hole enlarging device, characterized in that: It comprises a hole enlarging mechanism (1) for performing hole enlarging operation at the bottom of the guide hole of the anti-floating anchor rod; a connecting mechanism (2) connected to the top of the hole enlarging mechanism (1) for transmitting torque and axial force, realizing mud and water circulation and taking away debris; an anti-blocking mechanism (3) for preventing the lower end of the connecting mechanism (2) from being blocked by debris; and a plurality of anti-falling mechanisms (4) for preventing a large volume of debris from falling under the influence of gravity inside the connecting mechanism (2); The anti-falling mechanism (4) comprises a grille (41) for intercepting large volumes of debris; an anti-standing baffle (42) arranged at the rear end of the grille (41) for preventing the grille (41) from remaining in a vertical state and not falling back; and an anti-falling baffle rod (43) arranged at the front of the bottom of the grille (41) for preventing the grille (41) from rotating below a horizontal plane.

2. The anti-floating anchor rod hole enlarging device according to claim 1, characterized in that: The hole expansion mechanism (1) comprises a drill bit (11) for drilling a hole; a drill shank (12) fixedly mounted on the top of the drill bit (11) for transmitting torque and axial force; a chuck (13) fixedly mounted on the top of the drill shank (12); and a sleeve (14) sleeved on the outside of the chuck (13).

3. The anti-floating anchor hole enlarging device according to claim 2, characterized in that: The reaming mechanism (1) further comprises a plurality of upper reaming connecting rods (16) movably connected to the bottom of the casing (14) and arranged at equal intervals; a plurality of lower reaming connecting rods (17) movably connected to the upper reaming connecting rods (16); a plurality of reaming teeth (18) equidistantly arranged and fixedly mounted on the outer wall of the lower reaming connecting rods (17); and a spring (15) sleeved on the outside of the drill shank (12), the upper and lower ends of the spring (15) being fixedly connected to the drill bit (11) and the casing (14), respectively.

4. The anti-floating anchor hole enlarging device according to claim 2, characterized in that: The connection mechanism (2) comprises a drill rod (21) for transmitting torque, axial force and providing a channel for circulating mud and water and circulating slag; an upper connection piece (22) fixedly mounted on the top of the drill rod (21) for connecting an external drive device and a suction pump; a lower connection piece (23) fixedly mounted on the bottom of the drill rod (21), the lower connection piece (23) being fixedly connected to a casing (14) via a plurality of hexagon socket bolts; and a slag suction port (24) for sucking mud and slag.

5. The anti-floating anchor hole enlarging device according to claim 4, characterized in that: The anti-clogging mechanism (3) comprises a silt-removing member (31) for removing slag from the slag suction port (24); the upper ends of both sides of the silt-removing member (31) are movably connected to the drill rod (21) via a rotating shaft, and the silt-removing member (31) is installed inside the slag suction port (24); and a torsion spring (34) is provided at the connection between the silt-removing member (31) and the slag suction port (24) for driving the silt-removing member (31) to return to its original position.

6. The anti-floating anchor hole enlarging device according to claim 5, characterized in that: The anti-clogging mechanism (3) further comprises a collar (32) movably mounted on the bottom of the silt-removing member (31); and a traction rope (33) fixedly mounted on the outside of the collar (32) and used for pulling the silt-removing member (31) for silting, wherein the end of the traction rope (33) is fixedly connected to the clamp (13).

7. The anti-floating anchor hole enlarging device according to claim 4, characterized in that: The anti-fallback mechanism (4) is installed inside the drill rod (21), and the two sides of the grid (41) are movably connected to the inner wall of the drill rod (21) through a rotating shaft, the anti-standing baffle (42) is fixedly connected to the rear end inner wall of the drill rod (21), and the anti-falling baffle rod (43) is fixedly connected to the front end inner wall of the drill rod (21), the anti-falling baffle rod (43) is arranged in a right-angled triangular column shape, and the direction of the inclined surface of the anti-falling baffle rod (43) is the same as the direction of the flow of mud and slag.

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