CN210598814U - Soil and groundwater sample restoration integral type rig - Google Patents
Soil and groundwater sample restoration integral type rig Download PDFInfo
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- CN210598814U CN210598814U CN201920984433.3U CN201920984433U CN210598814U CN 210598814 U CN210598814 U CN 210598814U CN 201920984433 U CN201920984433 U CN 201920984433U CN 210598814 U CN210598814 U CN 210598814U
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Abstract
The utility model provides an integral type rig is restoreed in soil and groundwater sample, including the unit head part, the unit head part is including impacting gyration unit head and spouting the unit head soon, impact gyration unit head with spout the unit head soon and install side by side in the slip track of the top planker of planker part, the bottom planker is connected through the hydro-cylinder to the top planker, hydro-cylinder one end by round pin axle and split pin with the bottom planker is fixed, the other end uses the nut to pin through the piston head that stretches out the top planker, the planker part still includes first antifriction plate and second antifriction plate, first antifriction plate is fixed by the bolt both ends about the bottom planker to it forms to have certain interval the slip track of top planker, the planker part is installed on surveying the frame. The utility model discloses compact structure, reasonable in design has practiced thrift the conversion operating time between sample and the repair function, has improved work efficiency.
Description
Technical Field
The utility model relates to a soil and groundwater normal position are taken a sample fast and prosthetic environmental equipment field, concretely relates to integral type rig is restoreed in soil and groundwater sample.
Background
At present, soil sampling and underground water monitoring well building equipment is various in types, but functions are single often, organic superposition on sampling and repairing functions is not achieved, the same equipment can only sample and cannot be repaired or can only be repaired and cannot sample, a construction mode is rough, and the functions of directly pushing and quickly building an underground water monitoring well without disturbance in situ can not be achieved. Even in the sampling function, the existing equipment cannot be compact and universal, the power head for in-situ sampling and the power head for establishing the underground water monitoring well are separated, and the unnecessary conversion time can be increased in the construction process.
SUMMERY OF THE UTILITY MODEL
The utility model provides an integral type rig is restoreed in soil and groundwater sample to solve the not enough of prior art, realized both can carry out the quick undisturbed sample of soil and set up groundwater monitoring well fast on same platform equipment, can utilize the unit head of spouting soon of synchronous installation to carry out the injection of high pressure restoration medicament again, realize fixed point normal position and restore, and the unit head of just taking a sample and building well unit head integrated as an organic whole fast, need not the conversion and can realize taking a sample and building the well function.
The utility model provides an integral type rig is restoreed in soil and groundwater sample, including the unit head part, the unit head part is including impacting gyration unit head and spouting the unit head soon, impact gyration unit head with spout the unit head soon and install side by side in the sliding guide of the top planker of planker part, the bottom planker is connected through the hydro-cylinder to the top planker, hydro-cylinder one end by round pin axle and split pin with the bottom planker is fixed, the other end uses the nut to pin through the piston head that stretches out the top planker, the planker part still includes first antifriction plate and second antifriction plate, first antifriction plate is fixed by the bolt both ends about the bottom planker to it forms to have certain interval the slip track of top planker, the planker part is installed on surveying the frame.
Preferably, the detection frame comprises two bottom feet, a toothed fixing plate and two groups of vertically parallel guide rails, the toothed fixing plate is connected and reinforced with the two bottom feet, the bottom feet are installed at the bottom ends of the guide rails, the guide rails are provided with a front main guide rail and a back auxiliary guide rail, a lifting feeding oil cylinder is arranged between the two guide rails, the spherical end face of a piston rod of the lifting feeding oil cylinder is connected with the toothed fixing plate through a flange, a mounting plate is further arranged on a cylinder body of the lifting feeding oil cylinder and connected with the carriage component, and the carriage component can move up and down on the guide rails in a reciprocating mode.
Preferably, the auxiliary guide rail of the detection frame is installed on the tower-lifting sliding frame assembly through a wear-resistant block and a wear-resistant pressing plate, and the piston rod end of the sliding oil cylinder of the tower-lifting sliding frame assembly is connected with the detection frame through a support.
Preferably, the tower-lifting sliding frame assembly is provided with a slewing bearing, the slewing bearing is fixedly connected with the sliding oil cylinder and is arranged on a deflection support, and the deflection support is provided with a deflection oil cylinder.
Preferably, the tower lifting sliding frame assembly further comprises a tower lifting oil cylinder, a piston rod end of the tower lifting oil cylinder is connected with the deflection support through a pin shaft, and a cylinder body end of the tower lifting oil cylinder is connected with the rack platform through the tower lifting support.
Preferably, the rack platform is a front-back movable platform, two longitudinal parallel guide rails are arranged on the lower portion of the rack platform, and the rack platform is installed on the crawler connecting bridge through the cooperation of an upper wear pad, a lower wear pad and a pressing plate.
Preferably, the upper middle part of the crawler connecting bridge is provided with a longitudinal moving oil cylinder, a piston rod end of the longitudinal moving oil cylinder is connected with a support on the lower plane of the rack platform through a pin shaft, and a cylinder body end of the longitudinal moving oil cylinder is connected with the support welded on the crawler connecting bridge through a pin shaft.
Preferably, the main actions of power head rotation, impact and pressurization lifting of the drilling machine are executed in an electro-hydraulic driving mode, and the other auxiliary actions of tower lifting, deflection, sliding and the like are executed by operating a handle of the hydraulic multi-way valve.
Preferably, the crawler connecting bridge both sides parallel welding installation crawler attachment frame, every the crawler attachment frame includes drive wheel, tight pulley, thrust wheel, riding wheel and track, drive wheel and tight pulley set up in the both ends of crawler attachment frame cover on it the track, the track lower part is equipped with a plurality of thrust wheels that are used for bearing, and upper portion is equipped with a plurality of riding wheels that are used for planar lifting and righting, the drive wheel is connected to hydraulic motor.
Preferably, a rubber cushion block is further arranged between the crawler belts.
Preferably, the track connecting bridge with the track mounting bracket afterbody still is equipped with bracket assembly, bracket assembly including hold up hydro-cylinder and bracket body, bracket assembly through the round pin axle with the foot stall connection of track connecting bridge, two hold up the hydro-cylinder and then connect the track connecting bridge and bracket body.
Preferably, still include the power supply, the power supply is installed the afterbody of frame platform, the power supply is diesel engine drive high-pressure oil pump, provides hydraulic power for executive component such as each pneumatic cylinder, hydraulic motor.
Preferably, the hydraulic cylinder and the power motor are respectively connected with a control circuit and a wireless receiving device, and the control circuit and the wireless receiving device are used for receiving external remote control signals to remotely control the activities of the hydraulic cylinders and the power motor.
The utility model discloses beneficial effect:
the utility model provides a soil and groundwater sampling restoration integrated drilling machine, compact structure, reasonable design, saving the conversion working time between sampling and restoration functions, improving the working efficiency; only one device is needed to enter the same field, so that secondary damage and pollution to the earth surface caused by frequent passing of various devices into and out of the operation area are avoided.
Drawings
Fig. 1 is a side view of an embodiment of the invention when not in operation.
Fig. 2 is a side view of an embodiment of the present invention in operation.
Fig. 3 is a front view of a working portion according to an embodiment of the present invention.
Fig. 4 is a bottom view of the working portion according to the embodiment of the present invention.
Fig. 5 is a front view of a detection frame according to an embodiment of the present invention.
Fig. 6 is a side view of a detection frame according to an embodiment of the present invention.
Fig. 7 is an elevation view of a tower carriage assembly in accordance with an embodiment of the present invention.
Fig. 8 is a side view of a tower carriage assembly in accordance with an embodiment of the present invention.
Fig. 9 is a top view of a deflector support in a tower carriage assembly in accordance with an embodiment of the present invention.
Fig. 10 is a top view of a rack platform according to an embodiment of the present invention.
Fig. 11 is a front view of a rack platform according to an embodiment of the present invention.
Fig. 12 is a front view of a crawler connecting bridge according to an embodiment of the present invention.
Fig. 13 is a top view of the crawler connecting bridge according to the embodiment of the present invention.
Fig. 14 is a top view of a bracket assembly in accordance with an embodiment of the present invention.
Figure 15 is a side view of a bracket assembly in accordance with an embodiment of the present invention.
Wherein, 1-power head part, 2-impact rotary power head, 3-rotary spray power head, 4-carriage part, 401 top carriage, 402-oil cylinder, 403-bottom carriage, 404 pin shaft, 405-split pin, 406-nut, 407-first wear-resisting plate, 408-second wear-resisting plate, 409-bolt, 5-detection frame, 501-footing, 502-toothed fixing plate, 503-guide rail, 504-front main guide rail, 505-back auxiliary guide rail, 506-lifting feed oil cylinder, 507-flange, 508-mounting plate, 6-tower-lifting carriage assembly, 601-wear-resisting block, 602-wear-resisting pressure plate, 603-sliding oil cylinder, 604-support, 605-rotary support, 606-deflection support, 607-deflection oil cylinder, 608-tower lifting oil cylinder, 609-tower lifting support, 7-frame platform, 701-parallel guide rail, 702-wear pad, 703-pressing plate, 704-longitudinal moving support, 8-crawler connecting bridge, 801-longitudinal moving oil cylinder, 802-longitudinal moving oil cylinder support, 9-crawler mounting frame, 901-driving wheel, 902-tension wheel, 903-supporting wheel, 904-supporting wheel, 905-crawler, 906-rubber cushion block, 1001-bracket assembly, 1002-lifting oil cylinder, 1003-bracket body and 11-power source.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to specific embodiments.
Examples
As shown in fig. 1 to 13, the utility model provides an integral drilling machine for soil and groundwater sampling and remediation, which comprises a power head component 1, wherein the power head component 1 comprises an impact rotary power head 2 and a rotary spraying power head 3, the impact rotary power head 2 and the rotary spraying power head 3 are installed side by side in a sliding guide rail of a top carriage 401 of a carriage component 4, the top carriage 401 is connected with a bottom carriage 403 through an oil cylinder 402, one end of the oil cylinder 402 is fixed with the bottom carriage 403 by a pin shaft 404 and a cotter pin 405, the other end of the oil cylinder is locked with the top carriage 401 by a nut 406 through an extended piston head, the carriage component 4 further comprises a first wear plate 407 and a second wear plate 408, the first wear plate 407 and the second wear plate 408 are fixed at the upper and lower ends of the bottom carriage 403 by bolts 409 and have a sliding rail of the top carriage 401 with a, the carriage assembly 4 is mounted on a probe carriage 5. When the device works, if well construction and soil sampling are needed, the top dragging plate 401 is controlled to slide through the oil cylinder 402 so that the impact rotary power head 2 is aligned to a construction center in a transverse moving mode; if the medicine needs to be injected into the hole, the oil cylinder 402 controls the top carriage 401 to move transversely so that the rotary spraying power head 3 is aligned with the construction center. Therefore, the oil cylinder 401 controls the impact power head 2 and the rotary spraying power head 3 to move transversely, the sampling power head and the quick well building power head are integrated, and the sampling and well building functions can be realized without conversion.
The detection frame 5 consists of two feet 501, a fixed plate 502 with teeth and two groups of vertical parallel guide rails 503, the toothed fixing plate 502 is connected and fixed with two feet 501, the feet 501 are arranged at the bottom ends of the guide rails 503, the bottom foot 501 increases the contact area between the working state detection frame 5 and the ground, enhances the stability, the guide rail 503 is provided with a front main guide rail 504 and a back auxiliary guide rail 505, a lifting feed cylinder 506 is arranged between the two guide rails, the spherical end surface of the piston rod of the lifting feed cylinder 506 is connected with the toothed fixing plate 502 through a flange 507, the cylinder body of the lifting feed cylinder 506 is also provided with a mounting plate 508 connected with the carriage component 4, the cylinder 506 is driven to move by the movement of the piston rod of the lifting feeding cylinder 506, and the mounting plate 508 reciprocates up and down along with the cylinder, so that the carriage component 4 reciprocates up and down on the guide rail.
The auxiliary guide rail 505 of the detection frame 5 is installed on the tower-lifting carriage assembly 6 through a wear-resistant block 601 and a wear-resistant pressing plate 602, and the piston rod end of the sliding oil cylinder 603 of the tower-lifting carriage assembly 6 is connected with the detection frame 5 through a support 604, so that the sliding oil cylinder 603 can realize the function of lifting the detection frame 5. The tower crane carriage assembly 6 is provided with a slewing bearing 605, the slewing bearing 605 is fixedly connected with the sliding oil cylinder 603 and is arranged on a deflection support 606, and the deflection support 606 is provided with a deflection oil cylinder 607. Through the push-and-pull of the deflection oil cylinder, the sliding frame body can be controlled to do rotary motion around the central point, so that the drilling angle is further changed, through the matching of the sliding oil cylinder 603 and the deflection oil cylinder 607, the multi-angle arrangement of the detection frame 5 can be realized, and the multi-angle drilling can be further realized.
The tower-lifting carriage assembly 6 further comprises a tower-lifting oil cylinder 608, a piston rod end of the tower-lifting oil cylinder 608 is connected with the deflection support 606 through a pin shaft, and a cylinder body end of the tower-lifting oil cylinder 608 is connected with the rack platform 7 through a tower-lifting support 609. The tower-lifting oil cylinder 608 realizes the collection and release of the detection frame 5, as shown in fig. 1, when the device does not work, the tower-lifting oil cylinder 608 is recovered to collect the detection frame 5, at the moment, the transportation is convenient, and the detection frame 5 cannot be easily collided; as shown in fig. 2, when the equipment works, the tower-lifting oil cylinder 608 lifts the detection frame 5, and the sliding oil cylinder 603 and the deflection oil cylinder 607 are matched to determine the drilling angle.
The frame platform 7 is a front-back movable platform, two longitudinal parallel guide rails 701 are arranged on the lower portion of the frame platform 7, and the frame platform is installed on the crawler connecting bridge 8 through the cooperation of an upper wear pad 702, a lower wear pad 702 and a pressing plate 703.
The upper middle part of the crawler connecting bridge 8 is provided with a longitudinal moving oil cylinder 801, the piston rod end of the longitudinal moving oil cylinder 801 is connected with a longitudinal moving support 704 on the lower plane of the rack platform 7 through a pin shaft, and the cylinder body end of the longitudinal moving oil cylinder 801 is connected with a longitudinal moving oil cylinder support 802 welded on the crawler connecting bridge 8 through a pin shaft. Therefore, the front and back movement of the frame platform can be controlled by the extension and retraction of the longitudinal movement oil cylinder.
The crawler belt mounting frames 9 are welded on two sides of the crawler belt connecting bridge 8 in parallel, each crawler belt mounting frame 9 comprises a driving wheel 901, a tension wheel 902, a supporting wheel 903, supporting wheels 904 and a crawler belt 905, the driving wheel 901 and the tension wheel 902 are arranged at two ends of the crawler belt mounting frame 9, the crawler belt 905 is covered on the driving wheel 901 and the tension wheel 902, the supporting wheels 903 used for bearing are arranged at the lower portion of the crawler belt, the supporting wheels 904 used for supporting and righting the upper portion of the crawler belt are arranged at the upper portion of the crawler belt, and the driving wheel 901 is connected to a hydraulic motor. The driving wheel is driven by a speed reducer provided with a hydraulic motor, the tensioning wheel is used for tensioning the crawler belt through a tensioning oil cylinder, the plurality of supporting wheels play a bearing role, and the supporting wheels are used for supporting and righting the upper plane of the crawler belt.
A rubber pad 906 is also arranged between the crawler belts 905. The rubber cushion block is used for not damaging the road surface when walking on the road, and can be replaced singly when the rubber cushion block is damaged.
The crawler connecting bridge 8 and the tail of the crawler mounting frame 9 are further provided with a bracket assembly 1001, the bracket assembly 1001 comprises a supporting oil cylinder 1002 and a bracket body 1003, the bracket assembly 1001 is connected with the tail of the crawler connecting bridge 8 through a pin shaft, and the two supporting oil cylinders 1002 are connected with the crawler connecting bridge 8 and the bracket body 1003. The bracket component has three functions of supporting a tool transportation frame, leveling a construction site and supporting a drilling machine to save self conveniently. And a goods shelf is additionally arranged on the bracket component to be used as a tool transportation frame. The lifting oil cylinder 1002 can enable the bracket body 1003 to abut against the ground and enable the crawler 905 located behind to leave the ground, a steel plate is additionally arranged on the bracket body and used for leveling a construction site or repairing the crawler 905, or a sleeper is filled in the bracket body and used for escaping from the crawler 905, and therefore the device has a self-rescue function.
Still include power supply 11, power supply 11 installs rack platform 7's afterbody, power supply 11 is diesel engine drive high-pressure oil pump, provides hydraulic power for executive component such as each pneumatic cylinder, hydraulic motor.
The remote control device also comprises a control circuit and a wireless receiving device, and is used for receiving external remote control signals to remotely control the activities of each hydraulic cylinder and each power motor.
The main actions of power head rotation, impact and pressurization lifting of the drilling machine are executed in an electro-hydraulic driving mode, and the other auxiliary actions of tower lifting, deflection, sliding and the like are executed by operating a handle of the hydraulic multi-way valve.
In summary, the soil and groundwater sampling and repairing integrated drilling machine provided by the utility model has the advantages of compact structure and reasonable design, saves the conversion working time between the sampling and repairing functions, and improves the working efficiency; only one device is needed to enter the same field, so that secondary damage and pollution to the earth surface caused by frequent passing of various devices into and out of the operation area are avoided.
The above description is only an example of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a soil and groundwater sample restoration integral type rig, includes power head spare (1), characterized in that, power head spare (1) includes impact gyration unit head (2) and jet power head (3), impact gyration unit head (2) with jet power head (3) are installed side by side in the sliding track of top planker (401) of planker subassembly (4), bottom planker (403) is connected through hydro-cylinder (402) top planker (401), hydro-cylinder (402) one end by round pin axle (404) and split pin (405) with bottom planker (403) are fixed, the other end uses nut (406) to lock through the piston head that stretches out top planker (401), planker subassembly (4) still include first antifriction plate (407) and second antifriction plate (408), first antifriction plate (407) and second antifriction plate (408) are fixed by bolt (409) both ends about bottom planker (403), and the carriage component (4) is arranged on the detection frame (5).
2. The soil and groundwater sampling and remediation integrated rig of claim 1, the detection frame (5) consists of two bottom feet (501), a fixed plate (502) with teeth and two groups of vertical and parallel guide rails (503), the toothed fixing plate (502) is connected and used for reinforcing two feet (501), the feet (501) are arranged at the bottom end of the guide rail (503), the guide rail (503) is provided with a front main guide rail (504) and a back auxiliary guide rail (505), a lifting feed oil cylinder (506) is arranged between the two guide rails, the spherical end surface of a piston rod of the lifting feed oil cylinder (506) is connected with the toothed fixing plate (502) through a flange (507), the cylinder body of the lifting feed cylinder (506) is also provided with a mounting plate (508) connected with the carriage component (4) to realize the up-and-down reciprocating movement of the carriage component (4) on the guide rail.
3. The soil and groundwater sampling and remediation integrated drilling machine according to claim 2, characterized in that the secondary guide rail (505) of the detection frame (5) is mounted on the tower carriage assembly (6) through a wear block (601) and a wear pressure plate (602), and the piston rod end of the sliding cylinder (603) of the tower carriage assembly (6) is connected with the detection frame (5) through a support (604).
4. The soil and groundwater sampling and repairing integrated drilling machine according to claim 3, wherein the tower-lifting carriage assembly (6) is provided with a slewing bearing (605), the slewing bearing (605) is fixedly connected with the sliding oil cylinder (603) and mounted on a deflection support (606), an offset oil cylinder (607) is arranged on the deflection support (606), the tower-lifting carriage assembly (6) further comprises a tower-lifting oil cylinder (608), a piston rod end of the tower-lifting oil cylinder (608) is connected with the deflection support (606) through a pin shaft, and a cylinder body end of the tower-lifting oil cylinder (608) is connected with the frame platform (7) through a tower-lifting support (609).
5. The soil and groundwater sampling and repairing integrated drilling machine according to claim 4, wherein the rack platform (7) is a front-back movable platform, two longitudinal parallel guide rails (701) are arranged on the lower portion of the rack platform (7), the rack platform is installed on a track connecting bridge (8) through upper and lower wear pads (702) and a pressing plate (703) in a matching mode, a longitudinal moving oil cylinder (801) is arranged in the upper middle of the track connecting bridge (8), a piston rod end of the longitudinal moving oil cylinder (801) is connected with a longitudinal moving support (704) on the lower plane of the rack platform (7) through a pin shaft, and a cylinder body end of the longitudinal moving oil cylinder (801) is connected with a longitudinal moving oil cylinder support (802) welded on the track connecting bridge (8) through a pin shaft.
6. The soil and groundwater sampling and repairing integrated drilling machine according to claim 5, wherein the crawler mounting frames (9) are welded on two sides of the crawler connecting bridge (8) in parallel, each crawler mounting frame (9) comprises a driving wheel (901), a tension wheel (902), a supporting wheel (903), a supporting wheel (904) and a crawler (905), the driving wheel (901) and the tension wheel (902) are arranged at two ends of the crawler mounting frame (9) and cover the crawler (905) thereon, the lower portion of the crawler is provided with a plurality of supporting wheels (903) for bearing, the upper portion of the crawler is provided with a plurality of supporting wheels (904) for supporting and righting the upper plane, and the driving wheel (901) is connected to a hydraulic motor.
7. The soil and groundwater sampling and remediation integrated drilling machine according to claim 6, wherein a bracket assembly (1001) is further arranged at the tail of the crawler connecting bridge (8) and the crawler mounting frame (9), the bracket assembly (1001) comprises a jacking cylinder (1002) and a bracket body (1003), the bracket assembly (1001) is connected with the tail of the crawler connecting bridge (8) through a pin shaft, and the two jacking cylinders (1002) are connected with the crawler connecting bridge (8) and the bracket body (1003).
8. The soil and groundwater sampling and repairing integrated drilling machine according to any one of claims 4 to 7, further comprising a power source (11), wherein the power source (11) is installed at the tail of the rack platform (7), and the power source (11) is a diesel engine driven high-pressure oil pump and provides hydraulic power for each hydraulic cylinder and each hydraulic motor execution element.
9. The soil and groundwater sampling and remediation integrated rig of any one of claims 1 to 7, further comprising a control circuit and a wireless receiving device for receiving external remote control signals for remotely controlling the activities of the respective hydraulic cylinders and the power motors.
10. The soil and groundwater sampling and remediation integrated drilling machine as claimed in any one of claims 1 to 7, wherein power head slewing, impacting and pressurizing lifting actions of the drilling machine are performed in an electro-hydraulic driving mode, and other tower lifting, deflection and sliding auxiliary actions are performed by operating a handle of a hydraulic multi-way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920984433.3U CN210598814U (en) | 2019-06-27 | 2019-06-27 | Soil and groundwater sample restoration integral type rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920984433.3U CN210598814U (en) | 2019-06-27 | 2019-06-27 | Soil and groundwater sample restoration integral type rig |
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| CN210598814U true CN210598814U (en) | 2020-05-22 |
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| CN201920984433.3U Active CN210598814U (en) | 2019-06-27 | 2019-06-27 | Soil and groundwater sample restoration integral type rig |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185388A (en) * | 2019-06-27 | 2019-08-30 | 江苏省无锡探矿机械总厂有限公司 | A kind of integrated churn of soil and groundwater sampling reparation |
| CN113236229A (en) * | 2021-06-29 | 2021-08-10 | 中煤科工集团重庆研究院有限公司 | Device and method for measuring displacement of power head of drilling machine |
| US12084367B2 (en) | 2022-01-11 | 2024-09-10 | Chengdu University Of Technology | Staggered electrode bio-electro-Fenton groundwater circulation well system, and electro-Fenton assembly |
-
2019
- 2019-06-27 CN CN201920984433.3U patent/CN210598814U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185388A (en) * | 2019-06-27 | 2019-08-30 | 江苏省无锡探矿机械总厂有限公司 | A kind of integrated churn of soil and groundwater sampling reparation |
| CN113236229A (en) * | 2021-06-29 | 2021-08-10 | 中煤科工集团重庆研究院有限公司 | Device and method for measuring displacement of power head of drilling machine |
| US12084367B2 (en) | 2022-01-11 | 2024-09-10 | Chengdu University Of Technology | Staggered electrode bio-electro-Fenton groundwater circulation well system, and electro-Fenton assembly |
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