CN211008443U - Pumping full casing drilling machine - Google Patents
Pumping full casing drilling machine Download PDFInfo
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- CN211008443U CN211008443U CN201921779946.7U CN201921779946U CN211008443U CN 211008443 U CN211008443 U CN 211008443U CN 201921779946 U CN201921779946 U CN 201921779946U CN 211008443 U CN211008443 U CN 211008443U
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Abstract
The utility model provides a pump suction full casing drill, including rig main part, power car, hydraulic hose and reaction rod, the power car with the rig main part sets up to two detached independent mechanisms, the power car passes through hydraulic hose connects the rig main part and does the rig main part provides power, reaction rod detachably connects the power car with the rig main part. Because the power car and the rig main part set up to two detached independent mechanisms, the hydraulic hose is soft body, can be by the pulling wantonly, the reaction pole can be pulled down as required or the dress is gone up, therefore, when the construction in the tunnel pilot hole, only need the rig main part get into the tunnel pilot hole can, the power car can remain outside the tunnel pilot hole, for the pump suction complete casing rig complete machine, the volume of rig main part is less, adaptable constrictive construction space, thereby can accomplish the construction operation fast, the operating efficiency of pump suction complete casing rig in constrictive space has been improved greatly.
Description
Technical Field
The utility model relates to an engineering machine tool technical field especially relates to a pump suction full casing rig.
Background
With the continuous acceleration of the basic construction of China, the construction condition under the complex geological environment is more and more. In the face of narrow construction spaces such as tunnels, the traditional pump suction full casing drilling machine is large in size and weight and is not beneficial to walking and construction in narrow tunnel pilot tunnels.
SUMMERY OF THE UTILITY MODEL
Accordingly, there is a need for an improved pump-pumping full casing drill that can be walked and constructed in confined spaces.
The utility model provides a pump suction full casing drill, including rig main part, power car, hydraulic hose and reaction rod, the power car with the rig main part sets up to two detached independent mechanisms, the power car passes through hydraulic hose connects the rig main part and does the rig main part provides power, reaction rod detachably connects the power car with the rig main part.
In an embodiment of the present invention, the drilling machine main body includes: the device comprises a frame assembly, a sliding frame mechanism, a rotary drill mast and a power head; the sliding frame mechanism can be horizontally and slidably arranged on the frame assembly; the rotary drill mast is rotatably arranged on the sliding frame mechanism; the power head is arranged on the rotary drill mast in a lifting way.
In an embodiment of the present invention, the sliding frame mechanism is installed on the frame assembly through a smooth rail.
In an embodiment of the present invention, the drilling machine main body further includes a carriage translation cylinder, the carriage translation cylinder is connected to the carriage assembly and the carriage mechanism, so as to control the horizontal sliding of the carriage mechanism.
In an embodiment of the present invention, the rotary drill mast is rotatably mounted to the carriage mechanism through a rotating shaft.
In an embodiment of the present invention, the drilling machine further comprises a drilling mast deflection oil cylinder, the drilling mast deflection oil cylinder is connected to the carriage mechanism and the rotary drilling mast to control the deflection angle of the rotary drilling mast.
In an embodiment of the present invention, the number of the drilling mast deflection oil cylinders is two, and the two drilling mast deflection oil cylinders are respectively disposed on two sides of the rotary drilling mast; and the sliding frame mechanism is provided with a support rod, and the two drilling mast deflection oil cylinders are arranged at two ends of the support rod.
In an embodiment of the present invention, the power head is installed on the mast of the rotary drill in a liftable manner through the lifting rail; the drilling machine main body further comprises a pressing and pulling oil cylinder, and the pressing and pulling oil cylinder is installed on two sides of the power head and connected with the rotary drill mast so as to control the power head to lift.
In an embodiment of the utility model, the frame assembly includes crawler attachment, frame platform and leveling landing leg, frame platform install in crawler attachment is last, the leveling landing leg is connected frame platform is used for adjusting frame platform is in the level, balladeur train mechanism install in on the frame platform.
In an embodiment of the present invention, the power head is provided with a steel casing driver and/or a reverse circulation drill rod.
The utility model provides a pump suction full casing drill, because power car and rig main part set up to two detached independent mechanisms, the hydraulic hose is soft body, can be by the pulling wantonly, therefore, when the construction in the tunnel pilot tunnel, only need the rig main part get into in the tunnel pilot tunnel can, the power car can stay outside the tunnel pilot tunnel, for pumping the full casing drill complete machine of pump suction, the volume of rig main part is less, adaptable constrictive construction space, thereby can accomplish the construction operation fast, the operating efficiency of pumping the full casing drill of pump in narrow space has been improved greatly. Because reaction rod detachably connects motor vehicle and rig main part, consequently when the rig main part was advanced in the tunnel switches on, can be earlier with reaction rod and rig main part disconnection, let the rig main part can freely walk, during the construction, couple together reaction rod and rig main part again, this reaction rod can provide the reaction support for the rig main part to offset the gyration torsion when the rig main part is under construction, guarantee the normal construction operation of rig main part.
Drawings
Fig. 1 is a schematic structural view of a pump-suction full casing drill according to an embodiment of the present invention;
FIG. 2 is a side view of the drill body of a pump-pumped full casing drill according to one embodiment of the present invention;
FIG. 3 is a top view of a drill body of a pump-pumped, full casing drill according to an embodiment of the present invention;
FIG. 4 is a block diagram of a power head and a rotary drill mast of a pump-pumped, full-casing drill according to an embodiment of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 4 at A;
fig. 6 is a block diagram of a power head of a pump-pumped all casing drill according to an embodiment of the present invention;
FIG. 7 is a block diagram of a frame platform, a carriage mechanism, and a rotary drill mast of a pump-pumped all-casing drill according to an embodiment of the present invention;
FIG. 8 is an enlarged view of a portion of FIG. 7 at B;
FIG. 9 is a block diagram of a carriage mechanism of a pump-down full casing drill in accordance with an embodiment of the present invention;
fig. 10 is a diagram illustrating a state switching between a traveling state of a drilling machine main body of a pump-suction all casing drilling machine according to an embodiment of the present invention;
fig. 11 is a state diagram of positioning pile core construction performed by the main body of the pump-suction all casing drill according to an embodiment of the present invention;
FIG. 12 is a schematic view of a steel casing below a pump-pumped full casing drill according to an embodiment of the present invention;
fig. 13 is a construction diagram of a pump-suction full casing drilling machine for lowering a reinforcement cage and pouring concrete according to an embodiment of the present invention;
fig. 14 is a state switching diagram of the pump suction full casing drilling machine according to an embodiment of the present invention for steel casing pulling construction.
Description of the main elements
The following detailed description of the invention will be further described in conjunction with the above-identified drawings.
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.
It will be understood that when an element is referred to as being "mounted on" another element, it can be directly mounted on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, a pumping full casing drill includes a drill body 100, a power car 200, a hydraulic hose 300, and a reaction force lever 500. The power car 200 and the drill main body 100 are provided as two separate independent mechanisms, and the power car 200 is connected to the drill main body 100 through a hydraulic hose 300 and supplies power to the drill main body 100. The reaction lever 500 detachably connects the power car 200 and the drill body 100.
Because the power car 200 and the drilling machine main body 100 are arranged into two separated independent mechanisms, and the hydraulic hose 300 is a soft pipe body and can be pulled freely, when the drilling machine main body 100 is constructed in a narrow tunnel pilot hole, only the drilling machine main body 100 is required to enter the tunnel pilot hole, the power car 200 can be left outside the tunnel pilot hole, compared with a pumping whole casing drilling machine, the drilling machine main body 100 is small in size and suitable for a narrow construction space, thereby the construction operation can be completed quickly, and the operation efficiency of the pumping whole casing drilling machine in the narrow space is greatly improved. Because the reaction rod 500 is detachably connected with the power vehicle 200 and the drilling machine main body 100, when the drilling machine main body 100 moves in the tunnel conduction, the reaction rod 500 can be disconnected with the drilling machine main body 100 (the reaction rod 500 can move together with the power vehicle 200), so that the drilling machine main body 100 can move freely, when in construction, the reaction rod 500 is connected with the drilling machine main body 100, and the reaction rod 500 can provide reaction support for the drilling machine main body 100, thereby offsetting rotary torsion force when the drilling machine main body 100 is constructed and ensuring normal construction operation of the drilling machine main body 100.
Further, the reaction force lever 500 is a metal lever member. The two ends of the reaction rod 500 can be respectively pivotally connected to the power vehicle 200 and the drilling machine main body 100 through a pivot shaft and screws, or the two ends of the reaction rod 500 are fixedly connected to the power vehicle 200 and the drilling machine main body 100 through screws, however, the reaction rod 500 can also be connected to the power vehicle 200 and the drilling machine main body 100 through other detachable modes without being limited thereto.
Referring to fig. 2-14, a drill body 100 includes: the frame assembly 1, carriage mechanism 2, gyration drill mast 3 and unit head 4.
The carriage mechanism 2 is mounted on the frame assembly 1 so as to be horizontally slidable. The rotary drill mast 3 is rotatably mounted on the carriage mechanism 2. The power head 4 is arranged on the rotary drill mast 3 in a lifting way.
During this pump suction full casing rig construction, in rig main part 100 got into the tunnel pilot hole, through the whole length of the adjustable rig main part 100 of translation balladeur train mechanism 2, through the whole height of the adjustable rig main part 100 of lift unit head 4 to rig main part 100 can adjust the length and the height of rig main part 100 according to specific operating mode needs, thereby rig main part 100 can be in the narrow, narrow and small tunnel pilot hole of turning range fast travel of width size, higher commonality has. The pump-suction full casing drilling machine can also quickly complete pile positioning through rotation of the rotary drilling mast 3 and lifting of the power head 4, so that a pile self-positioning function is realized, and the operation efficiency is greatly improved.
Different parts can be installed on the power head 4 according to the construction operation requirement.
As shown in fig. 2, a steel casing drive 5 is mounted on the power head 4. The upper part of the steel casing driver 5 can be connected with the power head 4 through a pin shaft, and the lower part of the steel casing driver 5 can be connected with the steel casing 400 through a bolt and a key, so that the steel casing driver 5 can be used as a transition connection mechanism to realize the connection of the power head 4 and the steel casing 400.
Because the power head 4 is provided with the steel casing driver 5, the steel casing driver 5 can be used as a transition connection mechanism to be connected with the steel casing 400, so that the power head 4 can move and lower the steel casing 400, the steel casing 400 can be used for protecting the wall and forming a pile, the pollution of slurry wall and pile forming to the environment is avoided, and the steel casing 400 can be used for protecting the wall and forming the pile, and has the advantages of high pile forming verticality and good pile forming quality.
Furthermore, the power head 4 is provided with a rotary water pipe connector 41, and water pipes in different directions can be connected through the rotary water pipe connector 41, so that the use is more flexible and convenient.
Further, a reverse circulation drill rod 600 (shown in fig. 12) can be further installed on the power head 4, and the reverse circulation drill rod 600 can achieve the soil taking and slag removing functions, so that a plurality of drilling machines are not required to perform construction operation in the tunnel pilot tunnel at the same time.
The pump-suction full casing drill can realize different functions by installing different parts on the power head 4, and only the drill main body 100 needs to enter a narrow construction site during construction operation, so that the pump-suction full casing drill is particularly suitable for construction operation in a narrow tunnel pilot tunnel.
Further, the frame assembly 1 comprises a crawler device 11, a frame platform 12 and leveling legs 13, the frame platform 12 is installed on the crawler device 11, the leveling legs 13 are connected with the frame platform 12 for adjusting the frame platform 12 to be horizontal, and the carriage mechanism 2 is installed on the frame platform 12. The leveling legs 13 can adjust the level of the frame platform 12 and the components on the frame platform 12, so that the drilling machine main body 100 can quickly enter a construction state, and the operation efficiency is improved. Specifically, the number of the leveling legs 13 may be 4, or other numbers, and the leveling legs are uniformly distributed around the frame platform 12, so that the frame platform 12 is conveniently adjusted to be in a horizontal state. Further, the leveling legs 13 may be oil cylinders, and the total length of the oil cylinders is adjusted by the extension length of the piston rods of the oil cylinders, so that the height of the frame platform 12 is adjusted to keep the frame platform 12 horizontal.
Furthermore, a balancing weight 15 is arranged on the frame assembly 1, and the balancing weight 15 is arranged at one end, far away from the power head 4, of the frame assembly 1 and used for balancing the weight of the frame assembly 1, so that the problem of side turning caused by too large weight difference of two ends of the frame assembly 1 is avoided.
Further, the carriage mechanism 2 is mounted on the carriage assembly 1 via a smooth rail 21. The smooth rail 21 has a simple structure, and can realize stable horizontal sliding of the carriage mechanism 2. In one embodiment, the smooth rail 21 may include a sliding slot disposed on the frame assembly 1 and a sliding rail disposed on the sliding frame mechanism 2, wherein the sliding rail and the sliding slot are slidably engaged to realize the horizontal sliding of the sliding frame mechanism 2 on the frame assembly 1. However, without being limited thereto, in another embodiment, the smooth rail 21 may also include a slide rail disposed on the frame assembly 1 and a sliding slot disposed on the carriage mechanism 2, and the sliding of the carriage mechanism 2 on the frame assembly 1 is also achieved by the sliding fit of the slide rail and the sliding slot. Of course, other implementations of the smooth track 21 are also possible, and are not described in detail herein.
Further, the drill body 100 further includes a carriage translation cylinder 6, and the carriage translation cylinder 6 connects the carriage assembly 1 and the carriage mechanism 2 to control the horizontal sliding of the carriage mechanism 2. In the embodiment, the length of the carriage translation oil cylinder 6 is changed to control the carriage mechanism 2 to horizontally slide on the frame assembly 1, and the control mode is very simple. Specifically, the carriage assembly 1 can be connected through a cylinder body of the carriage translation oil cylinder 6, and a piston rod of the carriage translation oil cylinder 6 is connected with the carriage mechanism 2; of course, the other way around can be used, the carriage mechanism 2 is connected through the cylinder body of the carriage translation oil cylinder 6, and the piston rod of the carriage translation oil cylinder 6 is connected with the frame assembly 1. The length of the carriage translation cylinder 6 can be changed by controlling the extension length of the piston rod, thereby controlling the movement of the carriage mechanism 2.
Further, the rotary drill mast 3 is rotatably mounted to the carriage mechanism 2 via a rotary shaft 7. The rotating shaft can be of a cylindrical structure, and is simple in structure and stable in performance.
Further, the drilling machine main body 100 further comprises a drill mast deflection oil cylinder 8, and the drill mast deflection oil cylinder 8 is connected with the carriage mechanism 2 and the rotary drill mast 3 to control the deflection angle of the rotary drill mast 3. The rotary drill mast 3 can be controlled to rotate within a certain angle range by the drill mast deflection oil cylinder 8. In the embodiment, the drill mast deflection oil cylinder 8 is connected to the side part of the rotary drill mast 3, the rotary drill mast 3 can be controlled to deflect by changing the length of the drill mast deflection oil cylinder 8, and the control mode is very simple. Specifically, the carriage mechanism 2 can be connected through a cylinder body of the drill mast deflection oil cylinder 8, and a piston rod of the drill mast deflection oil cylinder 8 is connected with the rotary drill mast 3, as shown in fig. 4 and 7; of course, the other way around can be used, the rotary drill mast 3 is connected through the cylinder body of the drill mast deflection oil cylinder 8, and the piston rod of the drill mast deflection oil cylinder 8 is connected with the carriage mechanism 2. The length of the drilling mast deflection oil cylinder 8 can be changed by controlling the extension length of the piston rod, thereby controlling the deflection angle of the rotary drilling mast 3.
Furthermore, the number of the drilling mast deflection oil cylinders 8 can be two, and the two drilling mast deflection oil cylinders 8 are respectively arranged on the two sides of the rotary drilling mast 3, so that the structure is more stable; the carriage mechanism 2 is provided with a support rod 20, and two drilling mast deflection oil cylinders 8 are arranged at two ends of the support rod 20. The two drilling mast deflection oil cylinders 8 can respectively change the respective lengths, thereby conveniently controlling the deflection angle of the rotary drilling mast 3 and being very convenient to use.
Further, the power head 4 is liftably mounted on the rotary drill mast 3 via a lifting rail 31. In one embodiment, the lifting track 31 includes a slide slot disposed on the rotary drill mast 3 and a slide track disposed on the power head 4, as shown in fig. 4-6, wherein the slide track and slide slot slidably cooperate to allow the power head 4 to be lifted and lowered on the rotary drill mast 3. However, in another embodiment, the lifting track 31 may also include a slide rail disposed on the rotary drill mast 3 and a slide groove disposed on the power head 4, and the lifting of the power head 4 on the rotary drill mast 3 is also achieved by the slide rail and the slide groove being slidably engaged. Of course, other implementations of the lifting rail 31 are also possible, and are not described herein.
The drilling machine main body 100 further comprises a pressing and pulling oil cylinder 9, wherein the pressing and pulling oil cylinder 9 is installed on two sides of the power head 4 and connected with the rotary drill mast 3 so as to control the power head 4 to lift. In the embodiment, the lifting of the power head 4 on the rotary drill mast 3 can be controlled by changing the length of the pressing and pulling oil cylinder 9, so that the ground clearance of the power head 4 is changed, and the control mode is very simple. The number of the pressing and pulling oil cylinders 9 is two, and the pressing and pulling oil cylinders are arranged on two sides of the power head 4, so that the power head 4 can lift more stably. Specifically, the power head 4 can be connected through a cylinder body of the pressing and pulling oil cylinder 9, and a piston rod of the pressing and pulling oil cylinder 9 is connected with the rotary drill mast 3, as shown in fig. 1, 2, 4 and 7; of course, the other way around can be adopted, the rotary drill mast 3 is connected through the cylinder body of the pressing and pulling cylinder 9, and the piston rod of the pressing and pulling cylinder 9 is connected with the power head 4. The length of the pressing and pulling oil cylinder 9 can be changed by controlling the extension length of the piston rod, so that the ground clearance of the power head 4 is changed.
The utility model discloses a pump suction full casing drill's construction flow does:
the pump suction full casing drill machine walks in the tunnel pilot tunnel: when the drilling machine runs in a tunnel pilot tunnel with narrow width and narrow turning space, the length and the height of the drilling machine main body 100 can be reduced as much as possible. As shown in fig. 10, the carriage mechanism 2 can be horizontally slid to the left (with reference to fig. 10) to retract the carriage mechanism 2, the rotary drill mast 3, the power head 4 and the steel casing 400, thereby reducing the travel length of the drill body 100 and enabling the drill body 100 to travel more flexibly in narrow tunnel passages. Further, the height of the drill body 100 can also be reduced by lowering the power head 4.
Pump-suction full casing drill positioning pile core: when the drilling machine is constructed in a narrow tunnel pilot tunnel, the drilling machine main body 100 can drive the power head 4 to rotate together through the rotation of the rotary drilling mast 3, as shown in fig. 11, so that the power head 4 can quickly position a pile core, the operation efficiency is improved, in addition, the use amount of a width space is greatly reduced in a left-right rotation mode of the rotary drilling mast 3, and the pumping full casing drilling machine is very suitable for the operation in narrow industrial and mining fields.
The pump pumps and puts down the steel casing by the full casing drill: the height and size of the tunnel pilot tunnel are limited, the space requirement of simultaneous construction of multiple devices is not met, and the power head 4 on the drilling machine main body 100 can be used for installing different drilling tools, so that corresponding drilling operation can be completed by replacing the corresponding drilling tools, one machine has multiple functions, and multiple devices are not required to be constructed in the tunnel pilot tunnel at the same time. Further, as shown in fig. 12, the steel casing 400 can be connected to the steel casing driver 5, and the lowering of the steel casing 400 and the soil sampling operation inside the steel casing 400 can be completed.
A pump suction full casing drill is used for lowering a reinforcement cage and pouring concrete: after the pumping full casing drilling machine finishes lowering the steel casing 400, the crawler 11 may not be moved, and the translational carriage mechanism 2 translates the power head 4 to the rear portion of the crawler 11 (i.e., the left end of the crawler 11 in fig. 2), so as to leave a construction space for lowering a reinforcement cage and pouring concrete, as shown in fig. 13.
Drawing a steel casing in the tunnel pilot tunnel: as shown in fig. 14, after the pile hole filling is completed, the movable carriage mechanism 2 rapidly translates the power head 4 to the pile hole position, so that the preparation of the steel casing 400 in the drawing state is completed, the crawler device 11 does not need to be moved, and the construction efficiency is greatly improved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be taken as limiting the present invention, and that suitable modifications and variations of the above embodiments are within the scope of the invention as claimed.
Claims (10)
1. A pumping full casing drill is characterized by comprising a drill main body, a power vehicle, a hydraulic hose and a reaction rod, wherein the power vehicle and the drill main body are arranged into two separated independent mechanisms, the power vehicle is connected with the drill main body through the hydraulic hose and provides power for the drill main body, and the reaction rod is detachably connected with the power vehicle and the drill main body.
2. The pumping full casing drill of claim 1, wherein the drill body comprises: the device comprises a frame assembly, a sliding frame mechanism, a rotary drill mast and a power head;
the sliding frame mechanism can be horizontally and slidably arranged on the frame assembly;
the rotary drill mast is rotatably arranged on the sliding frame mechanism;
the power head is arranged on the rotary drill mast in a lifting way.
3. The pumping all casing rig of claim 2, wherein the carriage mechanism is mounted to the carriage assembly by a smooth rail.
4. The pumping full casing drill of claim 2, wherein the drill body further comprises a carriage translation cylinder connecting the carriage assembly and the carriage mechanism to control horizontal sliding of the carriage mechanism.
5. The pumping all casing rig of claim 2, wherein the rotary drill mast is rotatably mounted to the carriage mechanism by a shaft.
6. The pumping full casing drill of claim 2, wherein the drill body further comprises a drill mast yaw cylinder connecting the carriage mechanism and the rotary drill mast to control a yaw angle of the rotary drill mast.
7. The pumped full casing drill of claim 6, wherein said drill mast yaw cylinders are two in number, two being disposed on either side of said rotary drill mast; and the sliding frame mechanism is provided with a support rod, and the two drilling mast deflection oil cylinders are arranged at two ends of the support rod.
8. The pumping all casing drill of claim 2, wherein the power head is elevationally mounted to the rotary drill mast by a lifting rail; the drilling machine main body further comprises a pressing and pulling oil cylinder, and the pressing and pulling oil cylinder is installed on two sides of the power head and connected with the rotary drill mast so as to control the power head to lift.
9. The pumping full casing rig according to any one of claims 2 to 8, wherein the carriage assembly comprises a crawler assembly, a carriage platform mounted on the crawler assembly, and leveling legs connected to the carriage platform for adjusting the carriage platform to be level, the carriage mechanism being mounted on the carriage platform.
10. A pumping full casing drill according to any one of claims 2 to 8, wherein the power head is fitted with a steel casing drive and/or a reverse circulation drill pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921779946.7U CN211008443U (en) | 2019-10-22 | 2019-10-22 | Pumping full casing drilling machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921779946.7U CN211008443U (en) | 2019-10-22 | 2019-10-22 | Pumping full casing drilling machine |
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| CN211008443U true CN211008443U (en) | 2020-07-14 |
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| CN201921779946.7U Active CN211008443U (en) | 2019-10-22 | 2019-10-22 | Pumping full casing drilling machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593761A (en) * | 2019-10-22 | 2019-12-20 | 徐州盾安重工机械制造有限公司 | Pumping full casing drilling machine |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593761A (en) * | 2019-10-22 | 2019-12-20 | 徐州盾安重工机械制造有限公司 | Pumping full casing drilling machine |
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Effective date of registration: 20210519 Address after: 201901 5 / F, 6 / F, building 5, No. 258, Yangnan Road, Baoshan District, Shanghai Patentee after: SHANGHAI ENGINEERING MACHINERY Co.,Ltd. Address before: 221140 No.8 Tongfa Road, Quanzhou Economic Development Zone, Quanzhou District, Xuzhou City, Jiangsu Province Patentee before: Xuzhou Dun'an Construction Machinery Manufacturing Co.,Ltd. |