CN214741101U - Municipal pipeline horizontal directional drilling machine with reamer - Google Patents
Municipal pipeline horizontal directional drilling machine with reamer Download PDFInfo
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- CN214741101U CN214741101U CN202120724472.7U CN202120724472U CN214741101U CN 214741101 U CN214741101 U CN 214741101U CN 202120724472 U CN202120724472 U CN 202120724472U CN 214741101 U CN214741101 U CN 214741101U
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Abstract
The utility model discloses a municipal administration pipeline level directional drilling machine with enlarger, include: the bottom end of the bottom plate is provided with a plurality of spring buffer columns at intervals, the bottom end of each spring buffer column is connected with a roller, and two sides of the bottom plate are respectively and movably connected with a plurality of supporting plates; the drill pipe mechanism is fixed on one side of the top end of the bottom plate, and a reamer is fixed at the head of a drill pipe on the drill pipe mechanism; and the cab is arranged at the top end of the bottom plate and positioned on one side of the drill pipe mechanism and is used for controlling the horizontal directional drilling machine to work. The drill rod is provided with the reamer, the reaming construction process is completed in the tunneling process, and then the back-dragging pipeline operation can be directly carried out, so that the construction process is simplified, and the construction efficiency is improved; and the spring buffer post can let the rig adapt to various ground conditions, and the removal in-process is steady more can not damage corresponding part because of assaulting, and in addition, the backup pad of both sides can let the device steady more firm, can prevent that the rig from rocking the skew that leads to the drill pipe and influencing drilling quality in the course of the work.
Description
Technical Field
The utility model relates to a municipal administration pipeline construction tool technical field, more specifically the municipal administration pipeline level directional drilling machine with enlarger that says so relates to.
Background
The horizontal directional drilling machine is a construction machine for laying various underground utilities (pipelines, cables and the like) under the condition of not excavating the ground surface, and is widely applied to the laying construction of flexible pipelines of water supply, electric power, telecommunication, natural gas, petroleum and the like.
The conventional construction process of the existing small and medium-sized horizontal directional drilling machine is as follows: the method comprises the steps of drill bit tunneling → back-dragging reaming → reaming and tunneling → back-dragging pipeline, namely after a horizontal directional drilling machine is fixed at a drilling opening position, selecting a proper drill bit, enabling an engine to provide power for the drilling machine according to a preset position and angle, driving a rotary drill pipe to drive the drill bit to advance, enabling the drill bit to penetrate through a ground obstacle, and finally penetrating out of the ground to form a guide hole; when the drill pipe carried by the drill bit penetrates out of the ground, the drill bit is detached, the hole expanding tool and the drill pipe are installed and fixed, the diameter of the hole expanding tool is determined according to the size of a laid pipeline, back dragging hole expanding operation is started, the drill pipe rotates in the opposite direction in the back dragging process, the drill machine drives the drill pipe and the hole expanding head to retreat, back dragging hole expanding is carried out, and the diameter size of the underground pipeline is enlarged finally; when the hole expanding and pulling back are carried out, the pipeline to be laid needs to be fixed behind the hole expanding tool, the drilling machine pulls the drill pipe, the hole expanding tool and the pipeline can be driven to carry out pulling back simultaneously, and finally the pipeline is pulled out of the ground by bypassing the ground obstacle, so that the laying construction of the whole pipeline is completed.
However, in the construction process, the drill pipe needs to be disassembled and assembled twice, namely the drill bit needs to be disassembled and then the reaming tool needs to be replaced, so that the construction procedures are increased undoubtedly, and the construction efficiency is reduced; in addition, the existing horizontal directional drilling machine is unstable in the moving process of a hollow road surface, can be damaged due to impact, is unstable in support, and causes the deviation of a drill pipe due to shaking in the working process, so that the drilling quality is influenced.
Therefore, how to provide a method for completing a reaming construction process in a tunneling process and then directly carrying out back-dragging of a pipeline so as to simplify the construction process and improve the construction efficiency; the walking stick can walk stably on a hollow road surface, and corresponding parts are prevented from being damaged due to impact; meanwhile, the municipal pipeline horizontal directional drilling machine with the reamer can ensure the working stability of the drilling machine and avoid the influence on the drilling quality caused by the deviation of a drill pipe due to the shaking in the working process, and the problem to be solved by technical personnel in the field is urgent.
SUMMERY OF THE UTILITY MODEL
In view of the above, the utility model provides a reaming construction process is just accomplished in the tunneling process, then the pipeline is directly dragged back to simplify the construction process, improve the construction efficiency; the walking stick can walk stably on a hollow road surface, and corresponding parts are prevented from being damaged due to impact; meanwhile, the stability of the drilling machine during working can be guaranteed, and the municipal pipeline horizontal directional drilling machine with the reamer, which is used for preventing the drilling pipe from deviating and affecting the drilling quality due to shaking in the working process, is avoided.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a municipal pipe horizontal directional drilling rig with a reamer comprising:
the bottom end of the bottom plate is provided with a plurality of spring buffer columns at intervals, the bottom end of each spring buffer column is connected with a roller, and two sides of the bottom plate are respectively and movably connected with a plurality of supporting plates;
the drill pipe mechanism is fixed on one side of the top end of the bottom plate, and a reamer is fixed at the head of a drill pipe on the drill pipe mechanism;
and the cab is arranged at the top end of the bottom plate and positioned on one side of the drill pipe mechanism and used for controlling the horizontal directional drilling machine to work.
According to the technical scheme, compared with the prior art, the utility model discloses a municipal pipeline horizontal directional drilling machine with the reamer, the reamer is arranged on the drill rod, the reaming construction process is completed in the tunneling process, then the back dragging pipeline operation can be directly carried out, the construction process is simplified, and the construction efficiency is improved; and the setting of spring cushion post can let the rig adapt to various ground conditions, and the removal in-process is steady more can not damage corresponding part because of assaulting, and in addition, the backup pad of both sides can let the device steady more firm, can prevent that the rig from rocking the skew that leads to the drill pipe and influencing drilling quality in the course of the work.
Further, the drill pipe mechanism comprises:
one end of the telescopic supporting rod is fixedly connected with the top end of the bottom plate;
the high end of the oblique sliding rod is hinged with the other end of the telescopic supporting rod, and the low end of the oblique sliding rod is hinged with the edge of one side of the top end of the bottom plate;
the sliding block component is in transmission connection with the oblique sliding rod, and the top end of the sliding block component is fixed with the drill pipe.
The beneficial effects that adopt above-mentioned technical scheme to produce are that slider component drives the drilling rod and removes along the slant slide bar, can realize the drilling work of drill pipe to the inclination of drill pipe can freely be adjusted to flexible bracing piece, makes the drilling more convenient.
Furthermore, a guide sleeve is arranged at the lower end of the oblique sliding rod, and the drill pipe penetrates through the guide sleeve.
The beneficial effects that adopt above-mentioned technical scheme to produce are that, can make the drill pipe carry out the operation along the incline direction of slant slide bar, guarantee the stationarity of drill pipe motion, avoid the drill pipe skew to appear in the drilling process, guarantee drilling quality.
Furthermore, the oblique sliding rod is provided with a strip-shaped sliding hole, the bottom wall of the inner hole of the strip-shaped sliding hole is uniformly provided with a plurality of meshing teeth along the length direction, and the oblique sliding rod further comprises an oil supply tank mechanism, and the oil supply tank mechanism is fixed at the top end of the bottom plate;
the slider assembly includes:
a transverse rotating shaft is arranged in the U-shaped sliding frame, a transmission gear is fixedly sleeved on the transverse rotating shaft, and the transmission gear is in meshing transmission connection with the meshing teeth;
the bottom end of the fixed concave seat is fixedly connected with the top end of the U-shaped sliding frame, and the drill pipe is embedded and fixed in a concave port on the fixed concave seat;
the hydraulic motor is fixed on one side of the U-shaped sliding frame, an output shaft of the hydraulic motor is fixedly connected with one end of the transverse rotating shaft, and the oil supply tank mechanism is connected with a cylinder barrel of the hydraulic motor through a pipeline.
The beneficial effect who adopts above-mentioned technical scheme to produce is that, the oil supply tank mechanism carries hydraulic oil to hydraulic motor and makes its work, and hydraulic motor drives the rotation of horizontal pivot, and then makes the transmission gear on the horizontal pivot and meshing tooth meshing transmission for the U type balladeur train takes the drill pipe to move on the slant slide bar together, thereby realizes the drilling reaming operation of enlarger. And adopt gear engagement transmission, the drive drilling rod removes, and its is efficient, can let drilling precision more accurate, and can reduce the loss that friction brought, improve drilling quality effectively.
Furthermore, the positions of the transverse rotating shaft on two sides of the transmission gear are respectively sleeved with a fixed limiting block.
The beneficial effect that adopts above-mentioned technical scheme to produce is, can avoid drive gear skew on horizontal pivot to influence its transmission effect.
Further, the fuel supply tank mechanism includes:
the bottom end of the first mounting plate is fixedly connected with the top end of the bottom plate;
the oil tank is fixed at the top end of the first mounting plate and is connected with the hydraulic motor through a pipeline, and an oil pump is arranged on the pipeline;
the first diesel engine is fixed on the top end of the first mounting plate, and the driving end of the first diesel engine is fixedly connected with the input end of the oil pump.
Adopt the beneficial effect that above-mentioned technical scheme produced to be, first diesel engine drives the oil pump work, and the oil pump passes through the pipeline with the hydraulic oil in the oil tank and carries to hydraulic motor, drive hydraulic motor work.
Furthermore, a water cavity communicated with the drill pipe is formed inside the reamer, and a plurality of water outlets communicated with the water cavity are formed in the reamer;
the drilling machine further comprises a water supply tank mechanism, the water supply tank mechanism is fixed to the top end of the bottom plate, and a water outlet pipe on the water supply tank mechanism is communicated with a water inlet pipe on the tail end of the drilling pipe.
Adopt the beneficial effect that above-mentioned technical scheme produced to be, water supply tank mechanism can carry the cooling water to the water cavity through outlet pipe, inlet tube, drill pipe to flow by the delivery port, can cool off the cooling to the enlarger, the life of extension enlarger.
Further, the water supply tank mechanism includes:
the bottom end of the second mounting plate is fixedly connected with the top end of the bottom plate;
the water tank is fixed at the top end of the second mounting plate and is provided with a water injection funnel;
the water pump is fixed at the top end of the second mounting plate, a water inlet of the water pump is connected with a water outlet of the water tank, and a water outlet of the water pump is connected with the water outlet pipe;
the second diesel engine is fixed on the top end of the second mounting plate, and the driving end of the second diesel engine is fixedly connected with the input end of the water pump.
Adopt the beneficial effect that above-mentioned technical scheme produced to be, the second diesel engine drives the water pump work, and the cooling water in the water tank is taken out to the water intracavity through the outlet pipe to the water pump.
Furthermore, a spiral cutting edge is arranged on the outer surface of the reamer.
The beneficial effect that adopts above-mentioned technical scheme to produce is, the better various geological conditions of reply of easy enlarger, more effectively drills in the drilling process.
Further, the diameter of the reamer is gradually reduced from the middle part to the two ends.
The beneficial effect that adopts above-mentioned technical scheme to produce is for the friction that the enlarger received when drilling operation is little, easily tunnelling and back drag the operation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Figure 1 accompanying drawing is the utility model provides a municipal pipeline horizontal directional drilling machine's with enlarger structure schematic diagram.
FIG. 2 is a schematic structural diagram of a transmission gear and a meshing tooth in transmission.
FIG. 3 is a schematic diagram of a slider assembly.
Fig. 4 is a schematic structural diagram of the underreamer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the embodiment of the utility model discloses municipal pipeline horizontal directional drilling machine with enlarger includes:
the spring buffer device comprises a bottom plate 1, wherein a plurality of spring buffer columns 2 are arranged at the bottom end of the bottom plate 1 at intervals, the bottom end of each spring buffer column 2 is connected with a roller 3, and a plurality of support plates 4 are movably connected to two sides of the bottom plate 1 respectively;
the drilling pipe mechanism 5 is fixed on one side of the top end of the bottom plate 1, and the head of a drilling pipe 54 on the drilling pipe mechanism 5 is fixed with a reamer 6;
and the cab 7 is arranged at the top end of the bottom plate 1 and positioned on one side of the drill pipe mechanism 5 and is used for controlling the horizontal directional drilling machine to work.
The drill pipe mechanism 5 includes:
one end of the telescopic supporting rod 51 is fixedly connected with the top end of the bottom plate 1;
the high end of the oblique sliding rod 52 is hinged with the other end of the telescopic supporting rod 51, and the low end of the oblique sliding rod 52 is hinged with the edge of one side of the top end of the bottom plate 1;
the sliding block assembly 53 is in transmission connection with the oblique sliding rod 52, and a drilling pipe 54 is fixed at the top end of the sliding block assembly 53.
The lower end of the oblique sliding rod 52 is provided with a guide sleeve 55, and the drill pipe 54 is arranged in the guide sleeve 55 in a penetrating way.
The oblique sliding rod 52 is provided with a strip-shaped sliding hole 521, the bottom wall of an inner hole of the strip-shaped sliding hole 521 is uniformly provided with a plurality of meshing teeth 522 along the length direction, the oblique sliding rod further comprises an oil supply and oil tank mechanism 8, and the oil supply and oil tank mechanism 8 is fixed at the top end of the bottom plate 1;
the slider assembly 53 includes:
a transverse rotating shaft 532 is arranged in the U-shaped sliding frame 531, a transmission gear 533 is sleeved on the transverse rotating shaft 532, and the transmission gear 533 is in meshing transmission connection with the meshing teeth 522;
the bottom end of the fixed concave seat 534 is fixedly connected with the top end of the U-shaped sliding frame 531, and the drill pipe 54 is embedded in a concave opening 5341 on the fixed concave seat 534;
the hydraulic motor 535, the hydraulic motor 535 is fixed on one side of the U-shaped sliding rack 531, and the output shaft of the hydraulic motor 535 is fixedly connected with one end of the transverse rotating shaft 532, the oil supply tank mechanism 8 is connected with the cylinder of the hydraulic motor 535 through the pipeline.
Fixed limit blocks 536 are respectively sleeved at the positions of the transverse rotating shaft 532 at the two sides of the transmission gear 533.
The fuel supply tank mechanism 8 includes:
the bottom end of the first mounting plate 81 is fixedly connected with the top end of the bottom plate 1;
the oil tank 82 is fixed at the top end of the first mounting plate 81, the oil tank 82 is connected with the hydraulic motor 535 through a pipeline, and an oil pump 83 is arranged on the pipeline;
The interior of the reamer 6 is provided with a water cavity 61 communicated with the drill pipe 54, and the reamer 6 is provided with a plurality of water outlets 62 communicated with the water cavity 61;
the drilling machine further comprises a water supply tank mechanism 9, the water supply tank mechanism 9 is fixed at the top end of the bottom plate 1, and a water outlet pipe 94 on the water supply tank mechanism 9 is communicated with a water inlet pipe 10 on the tail end of the drilling pipe 54.
The water supply tank mechanism 9 includes:
the bottom end of the second mounting plate 91 is fixedly connected with the top end of the bottom plate 1;
the water tank 92 is fixed at the top end of the second mounting plate 91, and a water filling funnel 921 is arranged on the water tank 92;
the water pump 93 is fixed at the top end of the second mounting plate 91, a water inlet of the water pump 93 is connected with a water outlet of the water tank 92, and a water outlet of the water pump 93 is connected with a water outlet pipe 94;
The reamer 6 is provided on its outer surface with helical cutting edges 63.
The diameter of the reamer 6 is gradually reduced from the middle part to the two ends.
When the device is used, the horizontal directional drilling machine is moved to an operation position, then the supporting plate is put down and supported on the ground, a worker operates and controls in a cab, the first diesel engine is started to drive the oil pump to work, the oil pump conveys hydraulic oil in an oil tank to the hydraulic motor through a pipeline to drive the hydraulic motor to work, the hydraulic motor drives the transverse rotating shaft to rotate, and further the transmission gear on the transverse rotating shaft is in meshing transmission with the meshing teeth, so that the U-shaped sliding frame drives the drill pipe to move on the oblique sliding rod together, thereby realizing the drilling and reaming operation of the reamer, meanwhile, the second diesel engine is started to drive the water pump to work, the water pump conveys cooling water in the water tank to the water cavity through the water outlet pipe, the water inlet pipe and the drill pipe and the cooling water flows out from the water outlet, the temperature of the reamer can be reduced and cooled, the service life of the reamer is prolonged, or a mixture of fine soil and water can be added into the water tank, the mud is prepared by stirring, is pumped into the water cavity and flows out through the water outlet, and not only can the reamer be cooled, but also the friction force of the reamer can be reduced, so that the reaming operation is easy to implement.
The municipal pipeline horizontal directional drilling machine with the reamer has the advantages that the reamer is arranged on the drill rod, the reaming construction process is completed in the tunneling process, and then the back-dragging pipeline operation can be directly carried out, so that the construction process is simplified, and the construction efficiency is improved; and the setting of spring cushion post can let the rig adapt to various ground conditions, and the removal in-process is steady more can not damage corresponding part because of assaulting, and in addition, the backup pad of both sides can let the device steady more firm, can prevent that the rig from rocking the skew that leads to the drill pipe and influencing drilling quality in the course of the work.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A municipal pipeline horizontal directional drilling machine with a reamer is characterized by comprising:
the spring buffer device comprises a bottom plate (1), wherein a plurality of spring buffer columns (2) are arranged at the bottom end of the bottom plate (1) at intervals, the bottom end of each spring buffer column (2) is connected with a roller (3), and a plurality of supporting plates (4) are movably connected to two sides of the bottom plate (1) respectively;
the drilling pipe mechanism (5), the drilling pipe mechanism (5) is fixed on one side of the top end of the bottom plate (1), and a reamer (6) is fixed at the head of a drilling pipe (54) on the drilling pipe mechanism (5);
the cab (7) is arranged at the top end of the bottom plate (1) and located on one side of the drill pipe mechanism (5) and used for controlling the horizontal directional drilling machine to work.
2. The municipal pipe horizontal directional drilling machine with reamer as claimed in claim 1, wherein the drill pipe mechanism (5) comprises:
one end of the telescopic supporting rod (51) is fixedly connected with the top end of the bottom plate (1);
the high end of the oblique sliding rod (52) is hinged with the other end of the telescopic supporting rod (51), and the low end of the oblique sliding rod (52) is hinged with the edge of one side of the top end of the bottom plate (1);
the sliding block assembly (53) is in transmission connection with the oblique sliding rod (52), and the drilling pipe (54) is fixed at the top end of the sliding block assembly (53).
3. The municipal pipe horizontal directional drilling machine with the reamer as claimed in claim 2, wherein the lower end of the diagonal rod (52) is provided with a guide sleeve (55), and the drill pipe (54) is arranged in the guide sleeve (55) in a penetrating manner.
4. The municipal pipeline horizontal directional drilling machine with the reamer as claimed in claim 2, wherein the oblique sliding rod (52) is provided with an elongated sliding hole (521), the bottom wall of the inner hole of the elongated sliding hole (521) is uniformly provided with a plurality of meshing teeth (522) along the length direction, the machine further comprises an oil supply and oil tank mechanism (8), and the oil supply and oil tank mechanism (8) is fixed at the top end of the bottom plate (1);
the slider assembly (53) includes:
a U-shaped sliding frame (531), wherein a transverse rotating shaft (532) is arranged in the U-shaped sliding frame (531), a transmission gear (533) is sleeved on the transverse rotating shaft (532), and the transmission gear (533) is in meshing transmission connection with the meshing teeth (522);
the bottom end of the fixed concave seat (534) is fixedly connected with the top end of the U-shaped carriage (531), and the drill pipe (54) is embedded in a concave opening (5341) on the fixed concave seat (534);
the hydraulic motor (535) is fixed on one side of the U-shaped sliding frame (531), an output shaft of the hydraulic motor (535) is fixedly connected with one end of the transverse rotating shaft (532), and the oil supply tank mechanism (8) is connected with a cylinder barrel of the hydraulic motor (535) through a pipeline.
5. The municipal pipeline horizontal directional drilling machine with the reamer as claimed in claim 4, wherein the transverse rotating shaft (532) is sleeved with fixed limit blocks (536) at the two sides of the transmission gear (533).
6. The municipal pipe horizontal directional drilling machine with the reamer as claimed in claim 4, wherein the oil supply tank mechanism (8) comprises:
the bottom end of the first mounting plate (81) is fixedly connected with the top end of the bottom plate (1);
the oil tank (82) is fixed to the top end of the first mounting plate (81), the oil tank (82) is connected with the hydraulic motor (535) through a pipeline, and an oil pump (83) is arranged on the pipeline;
the first diesel engine (84), first diesel engine (84) are fixed first mounting panel (81) top, the drive end of first diesel engine (84) with the input fixed connection of oil pump (83).
7. The municipal pipe horizontal directional drilling machine with the reamer as claimed in claim 6, wherein the reamer (6) is internally provided with a water cavity (61) communicated with the drill pipe (54), and the reamer (6) is provided with a plurality of water outlets (62) communicated with the water cavity (61);
the drilling machine is characterized by further comprising a water supply tank mechanism (9), wherein the water supply tank mechanism (9) is fixed to the top end of the base plate (1), and a water outlet pipe (94) on the water supply tank mechanism (9) is communicated with a water inlet pipe (10) on the tail end of the drilling pipe (54).
8. The municipal pipe horizontal directional drilling machine with the underreamer as claimed in claim 7, wherein the water supply tank mechanism (9) comprises:
the bottom end of the second mounting plate (91) is fixedly connected with the top end of the bottom plate (1);
the water tank (92) is fixed at the top end of the second mounting plate (91), and a water injection funnel (921) is arranged on the water tank (92);
the water pump (93), the water pump (93) is fixed on the top end of the second mounting plate (91), the water inlet of the water pump (93) is connected with the water outlet of the water tank (92), and the water outlet of the water pump (93) is connected with the water outlet pipe (94);
the second diesel engine (95), second diesel engine (95) are fixed second mounting panel (91) top, the drive end of second diesel engine (95) with the input fixed connection of water pump (93).
9. A municipal pipe horizontal directional drilling machine with a reamer as claimed in any one of claims 1 to 8, characterized in that the outer surface of the reamer (6) is provided with helical cutting edges (63).
10. A municipal pipe horizontal directional drilling machine with a reamer according to any one of claims 1 to 8, characterized in that the diameter of the reamer (6) is gradually reduced from the middle to both ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120724472.7U CN214741101U (en) | 2021-04-09 | 2021-04-09 | Municipal pipeline horizontal directional drilling machine with reamer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120724472.7U CN214741101U (en) | 2021-04-09 | 2021-04-09 | Municipal pipeline horizontal directional drilling machine with reamer |
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| Publication Number | Publication Date |
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| CN214741101U true CN214741101U (en) | 2021-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120724472.7U Active CN214741101U (en) | 2021-04-09 | 2021-04-09 | Municipal pipeline horizontal directional drilling machine with reamer |
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| CN (1) | CN214741101U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114526009A (en) * | 2022-02-22 | 2022-05-24 | 长沙矿山研究院有限责任公司 | Modification method for improving convenience of YGZ-90 drilling machine |
| CN116291214A (en) * | 2023-03-06 | 2023-06-23 | 东营市德慧机电设备有限公司 | Explosion-proof drilling machine for petroleum |
-
2021
- 2021-04-09 CN CN202120724472.7U patent/CN214741101U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114526009A (en) * | 2022-02-22 | 2022-05-24 | 长沙矿山研究院有限责任公司 | Modification method for improving convenience of YGZ-90 drilling machine |
| CN114526009B (en) * | 2022-02-22 | 2022-11-25 | 长沙矿山研究院有限责任公司 | Refitting method for improving convenience of YGZ-90 drilling machine |
| CN116291214A (en) * | 2023-03-06 | 2023-06-23 | 东营市德慧机电设备有限公司 | Explosion-proof drilling machine for petroleum |
| CN116291214B (en) * | 2023-03-06 | 2023-11-10 | 东营市德慧机电设备有限公司 | Explosion-proof drilling machine for petroleum |
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