A pipe hole opening device and a hole opening method for water conservancy construction

Abstract

The present invention relates to the technical field of water conservancy engineering, and discloses a pipe hole opening device for water conservancy construction, including a drill bit, a pneumatic pipe is fixedly sleeved inside the drill bit, a transverse bevel gear is fixedly installed at the bottom end of the pneumatic pipe, a pressure block is fixedly installed on the lower surface of the transverse bevel gear, the pressure block is connected to the pneumatic pipe, and a drilling mechanism located between the drill bit and the pressure block is movably sleeved inside the drill bit. The pipe hole opening device for water conservancy construction, when the drill roller rotates until the suction nozzle is opposite to the hole channel, the connecting pipe, the chip suction port and the chip accumulation pipe are connected, and air is pumped upward in the pneumatic pipe, so that the debris generated by drilling is sucked into the ventilation pipe from the suction nozzle, so that the device can continuously clean the debris in the hole groove during the hole opening process, so that the residues generated by the pipe in the hole opening are cleared out of the short pipe, and then the water pipe will not be blocked by debris accumulation.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy projects, and in particular to a pipe hole-opening device for water conservancy construction and a hole-opening method thereof. Background Art

[0002] The most commonly used pipe drilling equipment in water conservancy construction is the pressurized hole tapping machine. The pressurized hole tapping machine is a safe, environmentally friendly and economical pipe drilling device, which is very suitable for the emergency repair of water pipes. The drilling principle of the pressurized hole tapping machine is to lead out a short pipe at the location where the pipe needs to be drilled, and connect the flange, three-layer plywood valve, flange, manifold and hole tapping machine in sequence above the short pipe to drill a hole in the pipe. After the drill bit drills the hole, retract the hole tapping machine and close the plywood valve to prevent leakage when installing the branch pipe.

[0003] Firstly, when the drill bit makes a hole in the pipe, a round edge is used. Finally, the orifice plate left after the hole is made needs to be brought out of the pipe through the drill bit. However, the round edge in contact with the hole-making teeth during the hole-making cannot bring out the debris generated during the hole-making. The debris will first remain on the opened hole during the hole-making. After the drill bit continues to drill in, it will be pressed out and accumulated in the short pipe. After the drilling is completed, the short pipe will not be removed as a connecting device, which will cause the water pipe to be blocked after the branch pipe is connected.

[0004] Secondly, since the pipeline is cylindrical, the first contact between the drill bit and the pipeline is linear contact. At this time, the drill bit continues to drill under the action of pressure, and all the pressure is concentrated on the hole-opening teeth at both ends of the drill bit. As the drill bit rotates continuously, each hole-opening tooth is subjected to a large single force. After multiple drillings, the strength of the hole-opening teeth decreases, which in turn reduces the service life of the drill bit. Secondly, when the drill bit is about to open a hole in the pipeline, force is applied to both sides of the drill bit, and the wall thickness of the pipeline is reduced at this time, so that the drill bit is subjected to the downward drilling pressure, and is also subjected to the water pressure of the water flow in the pipeline on the thin wall, which causes pressure on both sides of the drill bit, and then causes damage to the drill bit. Summary of the invention

[0005] The present invention provides a pipe hole opening device and a hole opening method for water conservancy construction, which have the advantage of preventing debris from clogging the water pipe and solve the problems mentioned in the above background technology.

[0006] The present invention provides the following technical solution: a pipeline hole opening device for water conservancy construction, comprising a drill bit, a pneumatic pipeline is fixedly sleeved inside the drill bit, a transverse bevel gear is fixedly installed at the bottom end of the pneumatic pipeline, a pressure block is fixedly installed on the lower surface of the transverse bevel gear, the pressure block is vertically connected to the pneumatic pipeline, a drilling mechanism located between the drill bit and the pressure block is movably sleeved inside the drill bit, the drilling mechanism corresponds to the chip storage pipe, the upper end of the drilling mechanism is movably connected to a longitudinal bevel gear, the longitudinal bevel gear and the transverse bevel gear are connected to each other. The wheels are adapted to each other, side gears are fixedly installed at both ends of the longitudinal bevel gear, a chip suction ball located below the longitudinal bevel gear is movably connected to the middle part of the drilling mechanism, the gears at both ends of the chip suction ball are meshed with the side gears, a drill roller adapted to the chip suction ball is movably connected to the lower end of the drilling mechanism, four chip suction ports are evenly opened on the outer surface of the chip suction ball in the vertical direction, hole-opening teeth are evenly fixedly installed on the outside of the drill roller, a suction nozzle is fixedly installed on the inner surface of the drill roller, and a connecting pipe connected to the suction nozzle is opened in the middle part of the drill roller.

[0007] Preferably, ventilation pipes are evenly arranged inside the pressure block around the cavity communicating with the pressure block and the air pressure pipe, a chip collection pipe connected to the other end of the ventilation pipe is movably installed inside the pressure block, a spring is fixedly installed on the lower surface of the chip collection pipe, a chip collection chamber is fixedly installed between two consecutive drilling mechanisms, a pressure relief port is arranged in the middle of the chip collection chamber close to one side of the pressure block, and a chip relief port is arranged at the other end of the pressure relief port.

[0008] Preferably, the position of the transverse bevel gear corresponds to the longitudinal bevel gear, the position of the pressure block corresponds to the chip suction ball, and when the drill bit rotates, the air pressure pipeline is connected to the upper hole opening machine and does not rotate, and the air pressure pipeline generates pulse air pressure.

[0009] Preferably, the transversely placed bevel gear rotates so that when the chip collection tube rotates from one chip suction ball to the next chip suction ball, the chip suction ball rotates one quarter of a circle, at which time the drill roller rotates one circle, and the chip collection tube is aligned with the lower end of the pressure discharge port when it is not load-bearing.

[0010] Preferably, a transverse groove is provided on the side of the drilling roller opposite to the suction nozzle.

[0011] A method for drilling a hole in a pipe drilling device for water conservancy construction, comprising the following steps:

[0012] S1. Install a short pipe at the location where a hole is to be drilled in the pipeline. Connect the flange, three-layer clamp valve, flange, manifold and drilling machine to the short pipe in sequence. Move the drill bit to the surface of the pipeline and start to rotate to drill the hole. At this time, the drill bit rotates but the horizontal bevel gear does not rotate.

[0013] S2. When the drill bit rotates, the longitudinal bevel gear rotates, thereby driving the chip suction ball and the drill roller to rotate. At this time, the drill roller with the hole-opening tooth part acts on the pipeline to start opening a hole, and the air pressure in the air pressure pipeline is the downward feed air pressure.

[0014] S3. When the drill roller rotates to the point where the suction nozzle faces the hole slot, the connecting pipe, the chip suction port and the chip storage pipe are connected, and an upward suction force is generated in the air pressure pipe to suck the chips in the hole slot into the ventilation pipe.

[0015] S4. After the chips are sucked into the ventilation pipe, the chip pipe rotates to a position opposite to the chip collection chamber, and the drill roller starts to drill holes again. At this time, the air pressure pipe generates downward feed pressure to concentrate the chips inside the chip pipe, so that the chip pipe and the ventilation pipe have alignment holes, and the exhaust pipe area changes, thereby changing the feed pressure, and the cycle continues until the drilling is completed.

[0016] S5. After the hole is drilled, take out the drill bit and the remaining orifice plate, close the clamp valve, remove the hole drill, install the branch pipe and open the clamp valve.

[0017] The present invention has the following beneficial effects:

[0018] 1. The pipeline hole-opening device for water conservancy construction, when the drill roller rotates to the point where the suction nozzle is opposite to the hole, the connecting pipe, the chip suction port and the chip accumulation pipe are connected, and air is pumped upward in the air pressure pipe, so that the debris generated by the drilling is sucked into the ventilation pipe from the suction nozzle, so that the device can continuously clean the debris in the hole groove during the hole-opening process, so that the residues generated by the pipeline in the hole-opening are cleared out of the short pipe, and then the water pipe will not be blocked by debris accumulation.

[0019] 2. The pipeline hole-opening device for water conservancy construction generates a downward impact force in the air pressure pipeline after the chip accumulation pipe leaves the chip suction port. When the chip accumulation pipe is not at the pressure discharge port, the sucked-in chips are discharged into the chip accumulation pipe due to the air pressure. At this time, the chip accumulation pipe moves downward due to the influence of the gravity of the chips, thereby generating an exhaust port in alignment with the ventilation pipe, thereby causing the air pressure to change the bottom of the pressure block. Then, when the hole-opening teeth act less on the pipeline, the feed pressure of the device on the pipeline is reduced, thereby increasing the service life of the drill bit. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front cross-sectional view of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the drilling mechanism of the present invention;

[0022] Figure 3 This is a schematic diagram of the internal structure of the drill roller of the present invention;

[0023] Figure 4It is a schematic diagram of the structure of the chip suction ball of the present invention;

[0024] Figure 5 For the present invention Figure 1 Middle AA section display diagram;

[0025] Figure 6 This is a schematic diagram of the chip storage tube structure of the present invention;

[0026] Figure 7 It is the front structural diagram of the chip collection chamber of the present invention.

[0027] In the figure: 1. drill bit; 2. air pressure pipeline; 3. horizontal bevel gear; 4. pressure block; 41. ventilation pipe; 42. chip storage pipe; 43. spring; 5. drilling mechanism; 51. longitudinal bevel gear; 52. side gear; 53. chip suction ball; 531. chip suction port; 54. drill roller; 541. hole opening teeth; 542. connecting pipe; 543. suction nozzle; 6. chip collection chamber; 61. pressure discharge port; 62. chip discharge port. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-7, a pipeline hole opening device for water conservancy construction, comprising a drill bit 1, a pneumatic pipeline 2 is fixedly sleeved inside the drill bit 1, a transverse bevel gear 3 is fixedly installed at the bottom end of the pneumatic pipeline 2, the drill bit 1 drives the feeding mechanism 5 to rotate while the pneumatic pipeline 2 and the transverse bevel gear 3 do not rotate, thereby driving the longitudinal bevel gear 51 to rotate, a pressure block 4 is fixedly installed on the lower surface of the transverse bevel gear 3, because the pneumatic pipeline 2 is clamped above the drill bit 4, so that the pressure block 4 affects the drill bit 1 to generate a downward feeding pressure after being compressed, and the pressure block 4 is connected to the pneumatic pipeline 2, and the drill bit 1 is internally movably sleeved with a drilling mechanism 5 located between the drill bit 1 and the pressure block 4, and the drilling mechanism 5 corresponds to the chip accumulation tube 42. The chip accumulation tube 42 contacts with the inner wall of the chip accumulation chamber 6 except for contacting with the chip suction port 531 to prevent the debris from leaking out, and the upper end of the drilling mechanism 5 is movably connected with the longitudinal bevel gear 51, The longitudinal bevel gear 51 is matched with the transverse bevel gear 3, and side gears 52 are fixedly installed at both ends of the longitudinal bevel gear 51. A chip suction ball 53 located below the longitudinal bevel gear 51 is movably connected to the middle part of the drilling mechanism 5. When sucking chips, the inside of the chip suction ball 53 sucks at 90°, and the gears at both ends of the chip suction ball 53 are meshed with the side gears 52. A drill roller 54 matched with the chip suction ball 53 is movably connected to the lower end of the drilling mechanism 5. When the roller 54 rotates, it continuously opens holes and sucks chips. Four chip suction ports 531 are evenly opened on the outer surface of the chip suction ball 53 in the vertical direction. When sucking chips, the chip suction ports 531 that do not work are blocked by the inner wall of the drill bit 1. Hole opening teeth 541 are evenly fixedly installed on the outside of the drill roller 54, a suction nozzle 543 is fixedly installed on the inner surface of the drill roller 54, and a connecting pipe 542 connected to the suction nozzle 543 is opened in the middle of the drill roller 54.

[0030] Among them, ventilation pipes 41 located around the cavity connecting the pressure block 4 and the air pressure pipe 2 are evenly opened inside the pressure block 4, and a chip collection pipe 42 connected to the other end of the ventilation pipe 41 is movably installed inside the pressure block 4. A stopper is arranged above the chip collection pipe 42, which partially blocks the ventilation pipe 41 after moving downward to form an offset ventilation hole, and a spring 43 is fixedly installed on the lower surface of the chip collection pipe 42, and a chip collection chamber 6 is fixedly installed between two consecutive drilling mechanisms 5. After the hole drilling is completed, the debris in the chip collection chamber 6 needs to be taken out after the drill bit 1 is lifted out, and a ventilation hole is arranged at the rear of the chip collection chamber 6 so that the wind pressure can be dispersed, and a pressure discharge port 61 is opened in the middle of the chip collection chamber 6 close to the pressure block 4, and a chip discharge port 62 is opened at the other end of the pressure discharge port 61. The bottom position of the chip discharge port 62 is located in the middle of the position of the spring 43, so that the chips can be discharged smoothly. At the same time, it is located on the weak side of the rotation of the drill roller 54 at this time, which can reduce the feed pressure at this time.

[0031] Among them, the position of the horizontal bevel gear 3 corresponds to the longitudinal bevel gear 51, the position of the pressure block 4 corresponds to the chip suction ball 53, and when the drill bit 1 rotates, the air pressure pipe 2 is connected to the upper hole opening machine and does not rotate. The air pressure pipe 2 generates pulse air pressure, and the corresponding position of the roller 54 and the position of the chip suction port 531 generates pulse air pressure to absorb and remove chips.

[0032] Among them, when the transverse bevel gear 3 rotates so that the chip accumulation tube 42 rotates from one chip suction ball 53 to the next chip suction ball 53, the chip suction ball 53 rotates one quarter of a circle, and the drill roller 54 rotates one circle at this time. When the chip accumulation tube 42 is not load-bearing, it is aligned with the lower end of the pressure discharge port 61, so that the pressure will not change when the feed pressure is applied, and chip discharge is only carried out when it rotates to the chip discharge port 62.

[0033] A transverse groove is provided on the side of the drill roller 54 opposite to the suction nozzle 543 to facilitate the suction of chips.

[0034] A method for drilling a hole in a pipe drilling device for water conservancy construction, comprising the following steps:

[0035] S1. Install a short pipe at the location where a hole is to be drilled in the pipeline, connect the flange, three-layer clamp valve, flange, manifold and drilling machine to the short pipe in sequence, move the drill bit 1 to the surface of the pipeline and start to rotate to drill the hole. At this time, the drill bit 1 rotates while the horizontal bevel gear 3 does not rotate.

[0036] S2. When the drill bit 1 rotates, the longitudinal bevel gear 51 rotates, thereby driving the chip suction ball 53 and the drill roller 54 to rotate. At this time, the drill roller 54 with the hole-opening teeth 541 acts on the pipeline to start opening a hole, and the air pressure in the air pressure pipeline 2 is a downward feed air pressure.

[0037] S3, when the drill roller 54 rotates to the point where the suction nozzle 543 faces the hole groove, the connecting pipe 542, the chip suction port 531 and the chip storage pipe 42 are connected, and an upward suction force is generated in the air pressure pipe 2 to suck the chips in the hole groove into the ventilation pipe 41.

[0038] S4. After the chips are sucked into the ventilation pipe 41, the chip collection pipe 42 rotates to a position opposite to the chip collection chamber 6, and the drill roller 54 starts to open holes again. At this time, the air pressure pipe 2 generates a downward feed pressure to concentrate the chips into the chip collection pipe 42, so that the chip collection pipe 42 and the ventilation pipe 41 have a registration hole, and the exhaust pipe area changes, thereby changing the feed pressure, and this cycle is repeated until the hole opening is completed.

[0039] S5. After the hole drilling is completed, the drill bit 1 is taken out together with the remaining orifice plate, and the clamping valve is closed. The hole drilling machine is removed, and the branch pipe is installed and the clamping valve is opened.

[0040] The working principle of this implementation case is as follows:

[0041] A short pipe is installed at the position where a hole is to be drilled in the pipeline, and a flange, a three-layer splint valve, a flange, a manifold and a hole-drilling machine are connected to the short pipe in sequence. The drill bit 1 on the hole-drilling machine is extended downward and continuously close to the pipeline surface. It stops when it touches the pipeline surface. The drill bit 1 starts to rotate, driving the longitudinal bevel gear 51 to rotate around the transverse bevel gear 3. At this time, the transverse bevel gear 3 does not rotate, so that the longitudinal bevel gear 51 rotates around the transverse bevel gear 3 and starts to rotate at the same time. At this time, the side gears 52 on both sides rotate to drive the chip suction ball 53 and the drill roller 54 to rotate. At this time, the shell of the drill roller 54 with hole-drilling teeth 541 on the outside acts on the pipeline, so that the drill bit starts to drill a hole in the pipeline, generating a circular empty groove, and pulsating air pressure is generated in the air pressure pipeline 2. At this time, the air pressure in the air pressure pipeline 2 acts downward on the pressure block 4, and the pressure block 4 feeds the drill bit 1 downward.

[0042] When the drill roller 54 rotates to the position where the suction nozzle 543 faces the hole groove, a negative pressure is generated in the air pressure pipe 2 to suck upwards. At this time, the connecting pipe 542 faces the chip suction port 531. At the same time, the 90° chip suction port 531 corresponds to the chip storage pipe 42. The negative pressure sucks the chips in the hole groove into the ventilation pipe 41. After suction, the pressure block 4 rotates to make the chip storage pipe 42 leave the chip suction port 531. At this time, downward air pressure is generated in the air pressure pipe 2, and all the chips are concentrated on the chip storage pipe 42. At this time, due to the hole groove The length changes continuously, resulting in different amounts of debris. At this time, the chip tube 42 moves downward to different degrees, so that the chip tube 42 and the ventilation tube 41 form corresponding exhaust channels. When the hole-opening teeth 541 have less contact with the pipe, the ventilation tube 41 and the chip tube 42 form a larger channel area. At this time, the air pressure generated in the air pressure pipe 2 is discharged in a larger amount from the channel, so that the feed air pressure to the pressure block 4 is reduced at this time. When it rotates to the chip discharge port 62, the chips in the chip tube 42 are discharged into the chip collecting chamber 6.

[0043] After the hole drilling is completed, the remaining orifice plate of the hole drilling is lifted into the drill bit 1 when the drill roller 54 rotates. At this time, the drill bit 1 moves upward into the hole drilling machine. When the drill bit 1 moves above the three-layer plywood valve, the plywood valve moves horizontally to close the valve to seal the short pipe, the hole drilling machine is removed, and a branch pipe is installed on the short pipe. After connection, the plywood valve is opened to allow water to flow into the branch pipe.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pipe hole opening device for water conservancy construction, comprising a drill bit (1), characterized in that: The drill bit (1) is fixedly sleeved with a pneumatic pipe (2) inside, a transverse bevel gear (3) is fixedly installed at the bottom end of the pneumatic pipe (2), a pressure block (4) is fixedly installed on the lower surface of the transverse bevel gear (3), and the pressure block (4) is connected to the pneumatic pipe (2). The drill bit (1) is movably sleeved with a drilling mechanism (5) located between the drill bit (1) and the pressure block (4), the drilling mechanism (5) corresponds to the chip storage tube (42), and the upper end of the drilling mechanism (5) is movably connected with a longitudinal bevel gear (51), the longitudinal bevel gear (51) is adapted to the transverse bevel gear (3), and side gears are fixedly installed at both ends of the longitudinal bevel gear (51). The middle part of the drilling mechanism (5) is movably connected to a chip suction ball (53) located below the longitudinally placed bevel gear (51), the gears at both ends of the chip suction ball (53) mesh with the side gear (52), the lower end of the drilling mechanism (5) is movably connected to a drilling roller (54) adapted to the chip suction ball (53), the outer surface of the chip suction ball (53) is evenly provided with four chip suction openings (531) in the vertical direction, the outer surface of the drilling roller (54) is evenly fixedly provided with hole-opening teeth (541), the inner surface of the drilling roller (54) is fixedly provided with a suction nozzle (543), and the middle part of the drilling roller (54) is provided with a connecting pipe (542) connected with the suction nozzle (543); The pressure block (4) is evenly provided with ventilation pipes (41) around the cavity communicating between the pressure block (4) and the air pressure pipe (2); a chip storage pipe (42) connected to the other end of the ventilation pipe (41) is movably installed inside the pressure block (4); a spring (43) is fixedly installed on the lower surface of the chip storage pipe (42); a chip collection chamber (6) is fixedly installed between two consecutive drilling mechanisms (5); a pressure relief port (61) is provided in the middle of the chip collection chamber (6) close to one side of the pressure block (4); and a chip discharge port (62) is provided at the other end of the pressure relief port (61); The position of the transversely placed bevel gear (3) corresponds to the longitudinally placed bevel gear (51), the position of the pressure block (4) corresponds to the chip suction ball (53), when the drill bit (1) rotates, the air pressure pipe (2) is connected to the upper hole opening machine and does not rotate, and the air pressure pipe (2) generates pulse air pressure; The transversely placed bevel gear (3) rotates so that the chip collecting tube (42) rotates from one chip collecting ball (53) to the next chip collecting ball (53), and the chip collecting ball (53) rotates one quarter of a circle. At this time, the drill roller (54) rotates one circle, and the chip collecting tube (42) is aligned with the lower end of the pressure discharge port (61) when it is not bearing any weight. A transverse groove is provided on the side of the drilling roller (54) opposite to the suction nozzle (543).

2. A method for drilling a hole in a pipe drilling device for water conservancy construction as claimed in claim 1, characterized in that: The steps include: S1. Install a short pipe at the location where a hole is to be drilled in the pipeline, connect a flange, a three-layer clamping valve, a flange, a header and a drilling machine to the short pipe in sequence, move the drill bit (1) to the surface of the pipeline and start to rotate to drill a hole. At this time, the drill bit (1) rotates while the horizontally placed bevel gear (3) does not rotate; S2, when the drill bit (1) rotates, the longitudinal bevel gear (51) rotates, thereby driving the chip suction ball (53) and the drill roller (54) to rotate. At this time, the drill roller (54) with the hole-opening teeth (541) acts on the pipeline to start opening a hole, and at this time, the air pressure in the air pressure pipeline (2) is a downward feed air pressure; S3, when the drill roller (54) rotates to the point where the suction nozzle (543) faces the hole groove, the connecting pipe (542), the chip suction port (531) and the chip storage pipe (42) are connected, and an upward suction force is generated in the air pressure pipe (2) to suck the chips in the hole groove into the ventilation pipe (41); S4, after the debris is sucked into the ventilation pipe (41), the chip accumulating pipe (42) rotates to a position opposite to the chip collecting chamber (6), and the drill roller (54) starts to open holes again. At this time, the air pressure pipe (2) generates a downward feed pressure, which collects the debris into the chip accumulating pipe (42), so that the chip accumulating pipe (42) and the ventilation pipe (41) form a registration hole, and the area of ​​the exhaust pipe is changed to change the feed pressure, and this cycle is repeated until the hole opening is completed; S5. After the hole drilling is completed, the drill bit (1) and the remaining orifice plate are taken out, the clamping valve is closed, the hole drilling machine is removed, and the branch pipe is installed and the clamping valve is opened.

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