CN113931160B - Ground soil covering and compacting device for geological exploration - Google Patents
Ground soil covering and compacting device for geological exploration Download PDFInfo
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- CN113931160B CN113931160B CN202111260104.2A CN202111260104A CN113931160B CN 113931160 B CN113931160 B CN 113931160B CN 202111260104 A CN202111260104 A CN 202111260104A CN 113931160 B CN113931160 B CN 113931160B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D1/00—Investigation of foundation soil in situ
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/22—Dredgers or soil-shifting machines for special purposes for making embankments; for back-filling
- E02F5/223—Dredgers or soil-shifting machines for special purposes for making embankments; for back-filling for back-filling
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- Life Sciences & Earth Sciences (AREA)
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- General Engineering & Computer Science (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Mechanical Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention relates to the technical field of geological exploration, in particular to a ground soil covering and compacting device for geological exploration.
Description
Technical Field
The invention relates to the technical field of geological exploration, in particular to a ground covering compaction device for geological exploration.
Background
Geological exploration is an investigation activity of determining a foundation type and calculating foundation parameters through exploration, detection and sampling analysis of geological soil layers. Therefore, in the geological exploration process, operations such as digging, turning and the like are generally needed, so that after the geological exploration is finished, soil needs to be backfilled and covered, and then is compacted.
Manual compaction is adopted in the traditional compaction, so that the compaction effect is poor; therefore, a researcher researches devices and equipment required by the geological exploration soil covering compaction process so as to improve the compaction effect and improve the soil covering efficiency. For example: patent number 201921958773 discloses a compaction device for geological survey pit filling, including the device main part, the device main part includes the outer wall fixed connection of base, supporting leg, water tank, broken case … … second motor and broken case, through setting up broken case, first roller, second roller, sieve, carousel, haulage rope and ram etc. accomplish crushing, screening and the compaction work to earth. For another example: the patent number 2020226871298 discloses a compaction device for geological exploration pit filling, which comprises an equipment main body, a crushing box, a moving rod and a rotary table, wherein … … is provided with a rotating seat, a gear ring, a first sliding groove, a ball, a rotating rod, a worm gear, a transmission gear, a first motor and a worm, so that the rotating seat can stably rotate in a connecting groove area, the steering adjustment of a rammer at the rotary table can be completed, and the length of the moving rod can be extended and adjusted by utilizing the arrangement of a fixed pipe, a groove, a rack and a second motor, so that the compaction area of the rammer can be conveniently adjusted; to the setting of second spout, bracing piece, slider again, make the bracing piece rotate in equipment principal department, be convenient for leach the bearing processing to the carriage release lever, fully solved and need remove whole automobile body, just can carry out the technical problem of earth compaction work to the soil pit, simplified to geological exploration process earthing compaction operation work.
However, the compaction device for filling a pit in the prior art still has the defects that the number of the rammers on the equipment main body is small, so that when soil around the equipment main body is compacted, only local compaction can be performed, and the soil right below the inside of the equipment main body cannot be compacted, so that the pit filling compaction efficiency and effect are poor.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention provides a ground soil covering and compacting device for geological exploration.
The method is realized by the following technical scheme:
the ground soil covering and compacting device for geological exploration comprises a bottom plate, a compacting ring and a main body arranged on the bottom plate, wherein two balance pipes are arranged at the radial opposite positions of the main body, pipelines are arranged in the balance pipes, and fixed pulleys are arranged at the end parts of two ends of each pipeline; a pull rope is arranged on the fixed pulley, and one end of the pull rope extends out of the pipeline and is connected to the upper surface of the compaction ring; the bottom plate and the main body form a body, and a through hole is formed in the center of the body close to the bottom; a control assembly for regulating and controlling the compaction ring to move up and down is arranged in the body, a central hammer is arranged on the lower surface of the control assembly, and the central hammer can freely fall from the through hole; the other end of the pull rope is connected to the upper surface of the control assembly; the control assembly is capable of moving the central hammer and the compaction ring in opposite directions in a vertical direction; the draw cord can freely slide on the fixed pulley.
Establish the through-hole on the body is close to the center of bottom, establish control assembly in this body, connect through the stay cord between control assembly upper surface and the compaction circle upper surface, establish the balance tube on the body, establish the pipeline in the balance tube, set for the pulley on the pipeline both ends tip, the stay cord is established on the fixed pulley, just the center hammer is established to the control assembly lower surface, and the center hammer can freely fall in the through-hole for when control assembly upwards slides, can pull up the center hammer, compaction circle free fall reaches to the compaction around the device body, when control assembly slides down, the center hammer freely falls, and the compaction circle is pulled up, reaches the earth compaction to device body bottom, has improved efficiency and effect to filling pit earth compaction.
In order to be able to ensure that the compression ring can be pulled up when the central hammer falls freely, the weight of the central hammer is preferably greater than the weight of the compression ring.
In order to improve the operation stability of the device, preferably, the control assembly comprises a mounting groove arranged at the top of the through hole, and an enlarged ring is arranged between the through hole and the mounting groove; a stabilizing plate is arranged in the enlarged ring, and the other end of the pull rope is connected to the upper surface of the stabilizing plate; the central hammer is arranged on the lower surface of the stabilizing plate; and a pulling assembly capable of controlling the stabilizing plate to move up and down is arranged in the mounting groove.
In order to lift the stabilizing plate and realize the alternate soil compaction operation between the compaction ring and the central hammer, preferably, the pulling assembly comprises a rack longitudinally arranged in the mounting groove and a pushing assembly capable of controlling the rack to move up and down; the bottom end of the rack and the stabilizing plate are integrally formed. In order to avoid the shaking of the rack during sliding, the back integrated into one piece of rack is equipped with the pulling rod, the rack with the pulling rod forms the cross section and is the T font structure, the mounting groove can with T font structure phase-match installation, just the T font structure can freely slide from top to bottom in the mounting groove. In order to avoid the rack from sliding out of the mounting groove and improve stability, the pulling rod is preferably provided with a fixing column.
In order to realize continuous upward pulling and lifting of the rack by utilizing the acting force of the motor, so that the central hammer and the compaction ring are compacted alternately, the soil compaction efficiency is improved, and the compaction effect is improved, preferably, the pushing assembly comprises a wheel groove arranged at the end part of the balance pipe close to the inside of the main body, and electric grooves arranged in parallel with the wheel groove in the radial direction of the main body; a gear is arranged in the wheel groove, and is provided with a half-circle of teeth which can be matched and meshed with the rack; a motor is arranged in the electric groove, and an output shaft of the motor is connected with the gear; the electric motor is characterized in that a power supply groove is formed in the top end of the main body, a storage battery is arranged in the power supply groove, the storage battery is connected with the electric motor through a lead, and a switch is arranged on the lead.
In order to utilize the elastic acting force of the spring and realize that the lifting difficulty of the stabilizing plate is reduced in the longitudinal direction, preferably, a plurality of springs are arranged between the upper surface of the expanding ring and the lower surface of the stabilizing plate.
In order to reduce the resistance of the pulling process of the pulling rope and ensure that the wear rate of the pulling rope is low when the pulling rope slides on the fixed pulley, preferably, a threading hole b and a threading hole a are arranged at the end part close to the balance pipe in the main body, and the threading hole a and the threading hole b are vertically projected downwards to the upper surface of the control assembly; the pull rope passes through the threading holes b and the threading holes a.
In order to ensure the connection stability and improve the connection efficiency, the connection efficiency is preferably improved, the lower surface of the control assembly is integrally formed with a connecting buckle, the upper surface of the central hammer is integrally formed with a connecting buckle, and a pull rope is arranged between the connecting buckles. Preferably, the control assembly upper surface integrated into one piece be equipped with the connector link, the compaction circle upper surface integrated into one piece is equipped with the connector link, be equipped with the stay cord between the connector link.
In order to move the device body during the compaction process, the bottom of the bottom plate is preferably provided with universal wheels.
In order to enhance the stability of the balance tube and avoid the defect that the balance tube is pulled and folded by the pull rope when the compacted ring falls, preferably, a support rod is arranged between the upper surface of the bottom plate and the end part of the balance tube, which is far away from one end of the main body.
In order to facilitate the installation of the components in the body, preferably, the main body and the bottom plate are integrally formed, and can be divided into a left component and a right component from the longitudinal direction, and the left component and the right component are spliced to form the body; the main part with the surface of bottom plate is equipped with fixed knot, and just after controlling two sets of subassemblies amalgamation, utilize fixed knot to fix into an entirety.
In order to facilitate the compaction operating personnel to promote the device, realize removing compaction earth, preferably, integrated into one piece is equipped with the spliced pole on the main part lateral wall, can dismantle on the spliced pole and be provided with the push rod, integrated into one piece is equipped with the handle on the push rod.
In order to avoid the compacting operator from slipping when compacting the soil pushing device, the handle is preferably provided with an anti-slip sleeve.
Compared with the prior art, the invention has the technical effects that:
the invention has simple structure and convenient operation, utilizes the structural arrangement of the compaction ring and the central hammer, lifts the central hammer when the compaction ring freely falls down to compact the soil filled in the pit, and lifts the compaction ring when the central hammer freely falls down to realize the alternate lifting and falling of the central hammer and the compaction ring, thereby realizing the compaction operation on the soil around the device while solving the compaction operation on the soil at the bottom of the device body and improving the efficiency and the effect of the compaction operation.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a schematic top view of the structure of fig. 1.
FIG. 3 isbase:Sub>A sectional view of the structure of FIG. 1A-A.
Fig. 4 is a schematic sectional view of fig. 2B-B.
1-bottom plate 2-compaction ring 3-main body 4-balance tube 5-support rod 6-pull rope 7-universal wheel 8-connecting column 9-fixing buckle 10-pull rod 11-rack 12-connecting buckle 13-mounting groove 14-power supply groove 15-cover plate 16-push rod 17-handle 18-anti-slip sleeve 19-storage battery 20-spring 21-through hole 22-center hammer 23-stabilizing plate 24-fixed pulley 25-gear 26-wheel groove 27-enlarged ring 28-threading hole a 29-pipeline 30-fixed column 31-threading hole b 32-electric groove 33-motor.
Detailed Description
The technical solution of the present invention is further defined in the following description with reference to the accompanying drawings and the specific embodiments, but the scope of the claimed invention is not limited to the description.
As shown in fig. 1-4, in this embodiment, the ground covering compaction device for geological exploration comprises a bottom plate 1, a compaction ring 2 and a main body 3 arranged on the bottom plate 1, two balance pipes 4 are arranged on the main body 3 at diametrically opposite positions, a pipeline 29 is arranged in each balance pipe 4, and fixed pulleys 24 are arranged at the two end parts of each pipeline 29; a pull rope 6 is arranged on the fixed pulley 24, and one end of the pull rope 6 extends out of the pipeline 29 and is connected to the upper surface of the compaction ring 2; the bottom plate 1 and the main body 3 form a body, and a through hole 21 is formed in the center of the body close to the bottom; a control assembly for regulating the compaction ring 2 to move up and down is arranged in the body, a central hammer 22 is arranged on the lower surface of the control assembly, and the central hammer 22 can freely fall from the through hole 21; the other end of the pull rope 6 is connected to the upper surface of the control assembly; the control assembly is capable of moving the central hammer 22 and the compacting ring 2 in opposite vertical directions; the rope 6 is slidable on the fixed pulley 24. The weight of the central hammer 22 > the weight of the compacting ring 2.
In use of the device: utilize earth to fill up the hole after, on removing the base that needs the compaction with the device again, open control assembly, make control assembly reciprocate at this internal, make central hammer 22 can freely fall and be mentioned in through-hole 21, and simultaneously, at central hammer 22, control assembly effect down, when realizing that compaction circle 2 falls compaction device earth on every side, central hammer 22 can be lifted by control assembly, when falling along with control assembly release central hammer 22 freely, central hammer 22 is to the earth compaction of device bottom, make compaction circle 2 lifted under the effect of stay cord 6, so in turn, realize compaction circle 2 and the alternative compaction soil of central hammer 22, improve the efficiency and the compaction effect of compaction operation.
As shown in fig. 3 and 4, in this embodiment, the control assembly includes a mounting groove 13 formed at the top of the through hole 21, and an enlarged ring 27 is formed between the through hole 21 and the mounting groove 13; a stabilizing plate 23 is arranged in the enlarged ring 27, and the other end of the pull rope 6 is connected to the upper surface of the stabilizing plate 23; the central hammer 22 is arranged on the lower surface of the stabilizing plate 23; and a pulling assembly capable of controlling the fixing plate 23 to move up and down is arranged in the mounting groove 13. Utilize the pulling subassembly can be with firm board 23 pulling from top to bottom, realize central hammer 22 and compaction circle under the effect of stay cord 6, the purpose of compaction fill pit earth in turn, improve compaction efficiency and effect.
As shown in fig. 1 to 4, in this embodiment, the pulling assembly includes a rack 11 longitudinally disposed in the mounting groove 13 and a pushing assembly capable of controlling the rack 11 to move up and down; the bottom end of the rack 11 and the stabilizing plate 23 are integrally formed. Preventing the falling off. In a more excellent embodiment, the back surface of the rack 11 is integrally formed with the pulling rod 10, the rack 11 and the pulling rod 10 form a structure with a T-shaped cross section, the mounting groove 13 can be installed in match with the T-shaped structure, and the T-shaped structure can freely slide up and down in the mounting groove 13. The sliding effect is improved. In a more excellent embodiment, the pulling rod 10 is provided with a fixing post 30. The rack 11 can be prevented from sliding out of the mounting groove 13, and stability is improved. In a more excellent embodiment, a plurality of steel balls capable of freely rolling are arranged between the fixing column 30 and the mounting groove 13, so that assistance is reduced, and energy consumption for pushing the rack 11 to move up and down is reduced.
As shown in fig. 1 to 4, in this embodiment, the pushing assembly comprises a wheel groove 26 at the end of the balance tube 4 close to the inside of the main body 3 and a power groove 32 arranged in parallel with the wheel groove 26 in the radial direction of the main body 3; a gear 25 is arranged in the wheel groove 26, and the gear 25 is provided with a half-circle of teeth and can be matched and meshed with the rack 11; a motor 33 is arranged in the electric groove 32, and an output shaft of the motor 33 is connected with the gear 25; the top end of the main body 3 is provided with a power supply groove 14, a storage battery 19 is arranged in the power supply groove 14, the storage battery 19 is connected with the motor 33 through a lead, and a switch is arranged on the lead. Can utilize motor 33 to drive the effect, realize rack 11 under gear 25 effect, and utilize gear 25 to set up half a circle of tooth, realize rack 11 and gear 25 clearance engagement for rack 11 is by mentioning the back, and free fall again is rotated the process at motor 33 and is geared again and mention, realizes compaction earth between central hammer 22 and the compaction circle 2 in turn, improves compaction efficiency and the effect to filling pit earth.
In this embodiment, as shown in fig. 4, a plurality of springs 20 are disposed between the upper surface of the enlarged ring 27 and the lower surface of the stabilizing plate 23. The upward acting force can be applied to the stable plate 23, the energy consumption when the center hammer 22 is reset is reduced, and the compaction operation cost is reduced.
As shown in fig. 1 to 4, in this embodiment, a threading hole b31 and a threading hole a28 are provided in the main body 3 at the end close to the balance tube 4, and the threading hole a28 and the threading hole b31 are vertically projected downward to the upper surface of the control assembly; the pulling rope 6 passes through the threading hole b31 and the threading hole a 28. The resistance of the stay rope 6 in the sliding process can be reduced, and the service life of the stay rope is prolonged.
As shown in fig. 1 to 4, in this embodiment, the lower surface of the control component is integrally formed with a connecting buckle 12, the upper surface of the central hammer 22 is integrally formed with a connecting buckle 12, and a pull rope 6 is arranged between the connecting buckles 12. The control assembly upper surface integrated into one piece be equipped with connector link 12, compaction circle 2 upper surface integrated into one piece is equipped with connector link 12, be equipped with stay cord 6 between the connector link. The connection of the pull rope 6 is convenient, and the connection stability is guaranteed.
In this embodiment, as shown in fig. 1 and 4, universal wheels 7 are provided at the bottom of the bottom plate 1. The device is convenient to move integrally.
As shown in fig. 1 and 4, in this embodiment, a support rod 5 is provided between the upper surface of the bottom plate 1 and the end of the balance pipe 4 far from the main body 3. The stability is enhanced.
As shown in fig. 1-4, in this embodiment, the main body 3 and the bottom plate 1 are integrally formed, and can be divided into two groups of left and right components in the longitudinal direction, and the main body is formed by splicing the two groups of left and right components; the main part 3 with the surface of bottom plate 1 is equipped with fixed knot 9, and after the left and right sides two sets of subassemblies amalgamation, utilize fixed knot 9 is fixed into an entirety. The disassembly, the overhaul and the installation of the internal structural components are convenient.
As shown in fig. 1-3, in this embodiment, a connection post 8 is integrally formed on an outer side wall of the main body 3, a push rod 16 is detachably disposed on the connection post 8, and a handle 17 is integrally formed on the push rod 16. Removable arrangements include, but are not limited to: threaded connections, for example: the push rod 16 is provided with an internal thread, the connecting column 8 is provided with an external thread, and the external thread is matched and connected with the internal thread; bayonet connections, for example: the end part of the push rod 16 is provided with a jack matched with the connecting column 8, so that the connecting column 8 is inserted into the jack, through holes are formed in the push rod 16 and the connecting column 8, and a bolt is arranged in the through holes, so that the push rod 16 and the connecting column 8 are connected into a whole. The device is convenient to move, compact and fill soil in the pit.
In this embodiment, as shown in fig. 2 or 3, the handle 17 is provided with an anti-slip cover 18. Can avoid at thrust unit for when the device can remove the compaction and fill out hole earth, avoid promoting the operating personnel hand and skid, improve the efficiency and the effect of compaction operation.
The invention may be practiced otherwise than as specifically described with reference to the prior art or to the common general knowledge and conventional techniques known to those skilled in the art. For example: as shown in fig. 3, the motor 33 may be, but is not limited to, a motor with a rated power of 220V, 380V; or as shown in fig. 3, a pipeline may be provided between the electric tank 32 and the power supply tank 14, and then a conducting wire is laid in the pipeline, so as to communicate the motor 33 in the electric tank 32 with the storage battery 19 in the power supply tank 14, thereby achieving the purpose of power-on operation; for another example: the electric groove 32 with be equipped with the bearing on the baffle between the race 26, motor 33 output is equipped with the axis of rotation, and the axis of rotation passes from the bearing and stretches into in the race 26 and with gear 25 is connected for when the axis of rotation drives rotatoryly at motor 33, it is rotatory to drive gear 25, establishes half a circle tooth on gear 25 again, and meshes with rack 11, realizes rotating at rack 11 and gear 25 clearance meshing, makes rack 11 can realize reciprocating under the effect of central hammer 22 and gear 25, and then realizes going up and down in turn with compaction circle 2, central hammer 22, reaches and carries out compaction operation in turn to filling hole earth, improves compaction efficiency and effect. The invention has simple structure, convenient operation and low manufacturing cost.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. The ground covering compaction device for geological exploration is characterized by comprising a bottom plate (1), a compaction ring (2) and a main body (3) arranged on the bottom plate (1), wherein two balance pipes (4) are arranged at radial opposite positions of the main body (3), a pipeline (29) is arranged in each balance pipe (4), and fixed pulleys (24) are arranged at the end parts of two ends of each pipeline (29); a pull rope (6) is arranged on the fixed pulley (24), and one end of the pull rope (6) extends out of the pipeline (29) and is connected to the upper surface of the compaction ring (2); the bottom plate (1) and the main body (3) form a body, and a through hole (21) is formed in the center of the body close to the bottom; a control assembly for regulating the compaction ring (2) to move up and down is arranged in the body, a central hammer (22) is arranged on the lower surface of the control assembly, and the central hammer (22) can freely fall down from the through hole (21); the other end of the pull rope (6) is connected to the upper surface of the control assembly; the control assembly being capable of moving the central hammer (22) and the compacting ring (2) in opposite vertical directions; the pull rope (6) can freely slide on the fixed pulley (24);
the control assembly comprises a mounting groove (13) arranged at the top of the through hole (21), and an enlarged ring (27) is arranged between the through hole (21) and the mounting groove (13); a stabilizing plate (23) is arranged in the enlarged ring (27), and the other end of the pull rope (6) is connected to the upper surface of the stabilizing plate (23); the central hammer (22) is arranged on the lower surface of the stabilizing plate (23); a pulling assembly capable of controlling the stabilizing plate (23) to move up and down is arranged in the mounting groove (13);
the pulling assembly comprises a rack (11) longitudinally arranged in the mounting groove (13) and a pushing assembly capable of controlling the rack (11) to move up and down; the bottom end of the rack (11) and the stabilizing plate (23) are integrally formed;
the pushing assembly comprises a wheel groove (26) arranged at the end part of the balance pipe (4) close to the inside of the main body (3) and an electric groove (32) arranged in parallel with the wheel groove (26) in the radial direction of the main body (3); a gear (25) is arranged in the wheel groove (26), and the gear (25) is provided with a half-circle of teeth and can be matched and meshed with the rack (11); a motor (33) is arranged in the electric groove (32), and an output shaft of the motor (33) is connected with the gear (25); a power supply groove (14) is formed in the top end of the main body (3), a storage battery (19) is arranged in the power supply groove (14), the storage battery (19) is connected with the motor (33) through a lead, and a switch is arranged on the lead;
a plurality of springs (20) are arranged between the upper surface of the expanding ring (27) and the lower surface of the stabilizing plate (23);
in the main body (3), a threading hole b (31) and a threading hole a (28) are formed in the end part close to the balance pipe (4), and the threading hole a (28) and the threading hole b (31) vertically project downwards to the upper surface of the control assembly; the pull rope (6) penetrates through the threading hole b (31) and the threading hole a (28).
2. Ground covering compaction device for geological exploration according to claim 1, characterized in that the control unit has a coupling button (12) integrally formed on the lower surface thereof, a coupling button (12) integrally formed on the upper surface of the central hammer (22), and a pull rope (6) between the coupling buttons (12).
3. Ground covering compaction device for geological exploration according to claim 1, characterized in that the control assembly is provided with connecting buckles (12) integrally formed on the upper surface, the compaction ring (2) is provided with connecting buckles (12) integrally formed on the upper surface, and a pull rope (6) is arranged between the connecting buckles.
4. Ground covering compaction device for geological exploration, according to claim 1, characterized in that the bottom of the bottom plate (1) is provided with universal wheels (7).
5. Ground covering compaction device for geological exploration, according to claim 1, characterized in that a support bar (5) is provided between the upper surface of the bottom plate (1) and the end of the balancing pipe (4) distal from the body (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111260104.2A CN113931160B (en) | 2021-10-28 | 2021-10-28 | Ground soil covering and compacting device for geological exploration |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111260104.2A CN113931160B (en) | 2021-10-28 | 2021-10-28 | Ground soil covering and compacting device for geological exploration |
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| CN113931160A CN113931160A (en) | 2022-01-14 |
| CN113931160B true CN113931160B (en) | 2022-12-30 |
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| CN112014201A (en) * | 2020-09-12 | 2020-12-01 | 山东亚汉检测技术有限公司 | Foundation detection device and detection method thereof |
| CN213892986U (en) * | 2020-10-19 | 2021-08-06 | 上海金树科技股份有限公司 | Packagine machine receive material and strike off mechanism |
| CN112627157A (en) * | 2020-12-04 | 2021-04-09 | 湖南伟隆建设工程有限公司 | Ground tamping equipment for construction |
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| CN113931160A (en) | 2022-01-14 |
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