CN113091717B - Device for lofting piles in highway - Google Patents
Device for lofting piles in highway Download PDFInfo
- Publication number
- CN113091717B CN113091717B CN202110222960.2A CN202110222960A CN113091717B CN 113091717 B CN113091717 B CN 113091717B CN 202110222960 A CN202110222960 A CN 202110222960A CN 113091717 B CN113091717 B CN 113091717B
- Authority
- CN
- China
- Prior art keywords
- pile
- guide rod
- lofting
- stake
- pressing guide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/02—Means for marking measuring points
- G01C15/06—Surveyors' staffs; Movable markers
- G01C15/08—Plumbing or registering staffs or markers over ground marks
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/20—Placing by pressure or pulling power
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
- G01S19/43—Determining position using carrier phase measurements, e.g. kinematic positioning; using long or short baseline interferometry
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The invention provides a device for lofting a road middle pile, which comprises a positioning component and a pile pressing component, wherein the positioning component is detachably connected to the top of the pile pressing component through threads, the middle line middle pile positioning is realized through a GPS RTK instrument when the device is used, a handle is directly held by a hand after the positioning to vertically support and stabilize the device, a foot is used for acting on a movable pedal to drive a pile pressing guide rod to drive a pile into soil, and the middle pile lofting is completed.
Description
Technical Field
The invention relates to the technical field of pile lofting devices in the road engineering construction process, in particular to a device for lofting piles in a road.
Background
In recent years, with the development of socio-economic, the construction of infrastructure for highway engineering has been rapidly developed. In the highway engineering construction, no matter in the early investigation design stage or the later construction stage of the highway engineering, the middle pile lofting is required to be carried out on the road center line so as to meet the requirements of field investigation in the design stage and linear position control in the construction stage. Therefore, research and analysis on the convenience and reliability of piling are needed, and it is very important to provide a piling device which has a simple structure, is convenient to operate, and is time-saving and labor-saving.
At present, a middle pile lofting method frequently used in highway engineering construction is that after a measurer positions a pile position by using a GPS, another measurer squats on the ground and holds a wooden pile (or a bamboo pile) by one hand, and holds an iron hammer by the other hand to hammer the wooden pile into soil. The method needs the surveyors to crouch down and stand up continuously, which is a laborious and time-consuming matter for the road engineering of the common long line, and needs two surveyors to complete the work in a matching way, so that the labor intensity is high, and the working efficiency is low. Therefore, it is necessary to design a device for determining the center line of a highway and driving into the ground for pile lofting in the field.
Disclosure of Invention
Aiming at the problems of manual pile lofting in the current highway engineering construction, the invention provides a device for lofting a pile in a highway, which has the advantages of simple structure, convenience in connection, reliability in assembly and disassembly and convenience in operation, and can reduce the labor intensity of personnel in pile lofting and improve the working efficiency and the lofting accuracy.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
the invention provides a device for lofting piles in a road, which comprises a positioning component and a pile pressing component which are detachably connected up and down, wherein:
the pile pressing assembly comprises a pile pipe with a hollow structure inside, a pile pressing guide rod is arranged in the hollow structure inside the pile pipe, one side face of the pile pressing guide rod is connected with a movable pedal, the other end of the movable pedal penetrates through a vertical sliding groove formed in the side face of the pile pipe, and the pile pressing guide rod is driven to move up and down in the pile pipe under the action of external force;
the pile pressing assembly further comprises a pile clamp arranged in a hollow structure in the pile pipe, a plurality of piles are vertically placed in the pile clamp side by side, the top of a pile located at a pile outlet position is abutted to the bottom of the pile pressing guide rod, a pile outlet hole is formed in the bottom of the pile pipe and corresponds to the pile outlet position of the pile clamp, and the pile located at the pile outlet position is driven into soil through the pile outlet hole under the driving pressure of the pile pressing guide rod;
the locating component comprises a vertical rod, the lower end of the vertical rod is connected with the top of the pile pipe through lower threads, the upper end of the vertical rod is connected with a GPS RTK instrument through upper threads, a display instrument used for recording and displaying data is installed on the vertical rod through a fixing clamp, and the display instrument is electrically connected with the GPS RTK instrument.
Furthermore, two guide rod limiting supports are arranged at the upper part and the lower part of the hollow structure in the pile tube, a through hole for the pile pressing guide rod to pass through is reserved in the middle of each guide rod limiting support, and the centers of the through holes on the two guide rod limiting supports are on the same straight line.
And the pile pressing guide rod is provided with limiting blocks which are respectively matched with the two guide rod limiting supports, and the lower part of the pile pressing guide rod is sleeved with a guide rod spring.
Further, the pile presss from both sides to be rectangle box-shaped structure the pile presss from both sides to be located one end under the pile pressing guide rod sets up a guide pile section of thick bamboo the other end of pile press from both sides sets up telescopic baffle and pile clamp spring, be a plurality of stake positions between telescopic baffle and the guide pile section of thick bamboo for place a plurality of stakes, the guide pile section of thick bamboo communicates with each other with the stake position, the stake is squeezed into in the guide pile section of thick bamboo under the effect of pile clamp spring and telescopic baffle.
In addition, the bottom of the pile pipe is located below the pile clamp, a supporting bottom plate is arranged on two sides of the bottom of the pile pipe, supporting legs used for supporting the whole device are arranged on two sides of the bottom of the pile pipe, and handles are arranged on two sides of the top of the pile pipe.
The invention has the beneficial effects that:
the invention provides a device for lofting piles in a highway, which is characterized in that a positioning component and a pile pressing component are integrated on one device, and only one person can hold equipment by hand; secondly, the central line middle pile positioning is realized through a GPS RTK instrument when the device is used, the device is vertically stabilized by directly holding a handle in a hand after the positioning, a foot is used for acting on a movable pedal to drive a pile pressing guide rod to drive a pile into soil, the middle pile lofting is completed, and the middle pile lofting work of a long-line highway can be completed repeatedly in such a way, so that the labor intensity of measuring personnel in the middle pile lofting can be greatly reduced, the working efficiency is improved, and meanwhile, the accuracy is also improved by using the integrated device which is operated by only one person compared with the existing lofting method; finally, the device of the invention is a device with simple structure, convenient operation and easy disassembly and assembly, and has strong practicability in the field.
Drawings
FIG. 1 is a schematic view of the overall structure of the lofting apparatus of the present invention;
FIG. 2 is a side view of the lofting apparatus of the present invention (with the support legs removed);
fig. 3 is a side view of a peg clamp in the lofting apparatus of the present invention.
Shown in the figure:
1-pile pipe, 2-pile pressing guide rod, 3-movable pedal, 4-chute, 5-guide rod limit support, 6-guide rod spring, 7-pile clamp, 8-pile, 9-pile clamp spring, 10-telescopic baffle, 11-pile guide cylinder, 12-limit block, 13-pile outlet hole, 14-support bottom plate, 15-handle, 16-vertical rod, 17-lower thread, 18-upper thread, 19-GPS RTK instrument, 20-fixing clamp, 21-display instrument and 22-support foot.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
Referring to fig. 1 to 3, the present invention provides a device for lofting piles in a road, which includes two parts, namely a positioning component and a pile pressing component, wherein the positioning component is detachably connected to the top of the pile pressing component through a screw thread, and specifically includes:
the pile pressing assembly comprises a pile pipe 1 with a hollow structure inside, a pile pressing guide rod 2 is arranged in the hollow structure inside the pile pipe 1, a vertical sliding groove 4 is formed in one side face of the pile pipe 1, a movable pedal 3 is welded on one side face of the pile pressing guide rod 2, the movable pedal 3 is perpendicular to the pile pressing guide rod 2, the other end of the movable pedal 3 penetrates through the vertical sliding groove 4 formed in the side face of the pile pipe 1, and the movable pedal 3 can drive the pile pressing guide rod 2 to move up and down in the pile pipe 1 under the action of external force.
In the above embodiment, it is obvious that the length of the sliding groove 4 is the range of the movable pedal 3 moving up and down, in order to ensure that the pile-pressing guide rod 2 can vertically move in the hollow structure of the pile pipe 1, two guide rod limit supports 5 can be further arranged up and down in the hollow structure of the pile pipe 1, a through hole for the pile-pressing guide rod 2 to pass through is reserved in the middle of each guide rod limit support 5, the centers of the through holes on the two guide rod limit supports 5 are on the same straight line, correspondingly, the pile-pressing guide rod 2 is provided with a limiting block 12 which is respectively matched with the two guide rod limiting supports 5, the extreme position of the pile guide bar 2 moving downwards is thus such that it stops when the upper stopper 12 comes into contact with the upper guide bar limit support 5, the limit position of the upward movement of the pile pressing guide rod 2 is the movement when the lower limit block 12 is contacted with the lower guide rod limit support 5.
The pile pressing assembly further comprises a pile clamp 7 arranged in the hollow structure in the pile pipe 1, a plurality of piles 8 are vertically placed in the pile clamp 7 side by side, the top of the pile 8 located in the pile discharging position is abutted to the bottom of the pile pressing guide rod 2, a pile discharging hole 13 is formed in the bottom of the pile pipe 1, the pile discharging hole 13 corresponds to the pile discharging position of the pile clamp 7, and the pile 8 located in the pile discharging position is driven into the soil through the pile discharging hole 13 under the driving pressure of the pile pressing guide rod 2.
In the above embodiment, pile holder 7 is rectangular box-shaped structure pile holder 7 is located one end under pile-pressing guide rod 2 sets up pile guide tube 11 the other end of pile holder 7 sets up retractable baffle 10 and pile holder spring 9, the one end of pile holder spring 9 is connected on retractable baffle 10, be a plurality of stake positions between retractable baffle 10 and the pile guide tube 11 for place a plurality of stakes 8, pile guide tube 11 communicates with each other with the stake position, stake 8 is pushed into in pile guide tube 11 under the effect of pile holder spring 9 and retractable baffle 10.
After the pile 8 in the pile guide cylinder 11 is driven into the soil, the pile clamp spring 9 is extruded to drive the telescopic baffle plate 10 to move towards the pile position, so that the pile 8 on the pile position adjacent to the pile guide cylinder 11 is extruded into the pile guide cylinder 11 for pile driving, the telescopic baffle plate 10 returns to the original position under the elastic acting force of the pile clamp spring 9, and pile supplement is repeatedly carried out.
The locating component comprises an upright rod 16, the lower end of the upright rod 16 is connected to the top of the pile pipe 1 through a lower thread 17, the upper end of the upright rod 16 is connected with a GPS RTK instrument 19 through an upper thread 18, a display 21 used for recording and displaying data is installed on the upright rod 16 through a fixing clamp 20, and the display 21 is electrically connected with the GPS RTK instrument 19.
In addition, the lower part of pile pressing guide rod 2 is sleeved with a guide rod spring 6, the bottom of pile tube 1 is provided with a supporting bottom plate 14 below pile clamp 7, and handles 15 are arranged on two sides of the top of pile tube 1.
Supporting feet 22 are arranged on two sides of the bottom of the pile tube 1 and used for supporting the whole device so as to facilitate the operation of the whole device.
When the lofting device is used, firstly, the GPS RTK instrument 19 is used for positioning the coordinate of the position of the pile in the central line, the lofting device is placed on the position, then the handle is held by hands to vertically support the lofting device, feet act on the movable pedal 3, the pile pressing guide rod 2 overcomes the elastic force of the guide rod spring 6 through the pressure acting on the movable pedal 3 to slide downwards, at the moment, the bottom of the pile pressing guide rod 2 is abutted to the top of the pile 8 in the pile discharging position, the pile pressing guide rod 2 inevitably pushes the pile 8 downwards when sliding downwards, the pile 8 is extruded out of the pile discharging hole 13 due to the pile discharging hole 13 formed in the bottom of the pile pipe 1, the pile 8 is further driven into the soil, the pile pressing guide rod 2 returns to the original position under the elastic force of the guide rod spring 6, the pile in-pile lofting work can be completed through the repetition, the pile 8 in the pile discharging position is automatically filled into the soil, the process of pile repair is described above.
It should be noted that the display instrument in the above embodiments is a measurement instrument that is matched with the GPS RTK instrument 19, and is used for recording and displaying data such as real coordinates and elevation, and is fixed on the upright 16 through the fixing clamp 20.
In conclusion, the device for lofting the piles in the highway provided by the invention has the advantages of simple structure, convenience in connection, reliability in assembly and disassembly and convenience in operation, and can reduce the labor intensity of personnel in lofting the piles and improve the working efficiency and the lofting accuracy.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention.
Claims (8)
1. The utility model provides a device that is arranged in stake laying-out of highway which characterized in that: including the locating component and the pile pressing subassembly of connection can be dismantled from top to bottom, wherein:
the pile pressing assembly comprises a pile tube (1) with a hollow structure inside, a pile pressing guide rod (2) is arranged in the hollow structure inside the pile tube (1), a movable pedal (3) is connected to one side face of the pile pressing guide rod (2), the other end of the movable pedal (3) penetrates through a vertical sliding groove (4) formed in the side face of the pile tube (1), and the pile pressing guide rod (2) is driven to move up and down in the pile tube (1) under the action of external force;
the pile pressing assembly further comprises a pile clamp (7) arranged in a hollow structure in the pile pipe (1), a plurality of piles (8) are vertically placed in the pile clamp (7) side by side, the top of the pile (8) located at a pile discharging position is abutted to the bottom of the pile pressing guide rod (2), a pile discharging hole (13) is formed in the bottom of the pile pipe (1), the pile discharging hole (13) corresponds to the pile discharging position of the pile clamp (7), and the pile (8) located in the pile discharging position is driven into soil through the pile discharging hole (13) under the driving pressure of the pile pressing guide rod (2);
the locating component comprises a vertical rod (16), the lower end of the vertical rod (16) is connected with the top of the pile pipe (1) through a lower thread (17), the upper end of the vertical rod (16) is connected with a GPS RTK instrument (19) through an upper thread (18), a display instrument (21) used for recording and displaying data is installed on the vertical rod (16) through a fixing clamp (20), and the display instrument (21) is electrically connected with the GPS RTK instrument (19).
2. A device for pile lofting in a road according to claim 1, wherein: two guide rod limiting supports (5) are arranged in the hollow structure in the pile tube (1) in the up-down direction, a through hole used for allowing the pile pressing guide rod (2) to pass through is reserved in the middle of each guide rod limiting support (5), and the centers of the through holes in the two guide rod limiting supports (5) are on the same straight line.
3. A device for pile lofting in a road according to claim 2, wherein: and the pile pressing guide rod (2) is provided with a limiting block (12) which is matched with the two guide rod limiting supports (5) respectively.
4. A device for pile lofting in a road according to claim 3, wherein: and a guide rod spring (6) is sleeved at the lower part of the pile pressing guide rod (2).
5. A device for pile lofting in a road according to claim 1, wherein: pile holder (7) are rectangle box structure pile holder (7) are located one end setting under pile-pressing guide arm (2) leads stake section of thick bamboo (11 the other end of pile holder (7) sets up retractable baffle (10) and pile holder spring (9), be a plurality of stake positions between retractable baffle (10) and the pile holder section of thick bamboo (11) for place a plurality of stake (8), it communicates with each other with the stake position to lead stake section of thick bamboo (11), stake (8) are crowded under the effect of pile holder spring (9) and retractable baffle (10) and are led in stake section of thick bamboo (11).
6. A device for pile lofting in a road according to claim 1, wherein: and a support bottom plate (14) is arranged at the bottom of the pile pipe (1) and below the pile clamp (7).
7. A device for pile lofting in a road according to claim 1, wherein: handles (15) are arranged on two sides of the top of the pile tube (1).
8. A device for pile lofting in a road according to claim 1, wherein: supporting legs (22) for supporting the whole device are arranged on two sides of the bottom of the pile tube (1).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110222960.2A CN113091717B (en) | 2021-02-26 | 2021-02-26 | Device for lofting piles in highway |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110222960.2A CN113091717B (en) | 2021-02-26 | 2021-02-26 | Device for lofting piles in highway |
Publications (2)
Publication Number | Publication Date |
---|---|
CN113091717A CN113091717A (en) | 2021-07-09 |
CN113091717B true CN113091717B (en) | 2022-05-31 |
Family
ID=76667637
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202110222960.2A Active CN113091717B (en) | 2021-02-26 | 2021-02-26 | Device for lofting piles in highway |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN113091717B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114199218A (en) * | 2021-12-17 | 2022-03-18 | 中铁四局集团路桥工程有限公司 | Auxiliary device and method for positioning suspension position placing point |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN204594465U (en) * | 2015-05-04 | 2015-08-26 | 崔成全 | Multi-functional mark post |
CN205188970U (en) * | 2016-03-01 | 2016-04-27 | 上海联适导航技术有限公司 | Beidou navigation locating static pressure stake system |
CN205384024U (en) * | 2016-02-26 | 2016-07-13 | 中国矿业大学 | Portable engineering measuring and sampling centering rod |
CN107268604A (en) * | 2017-08-10 | 2017-10-20 | 中南大学 | The construction system and construction method of a kind of hollow preformed pile |
CN207540552U (en) * | 2017-12-15 | 2018-06-26 | 王强 | It is a kind of to measure with metal mark post |
CN108489470A (en) * | 2018-04-12 | 2018-09-04 | 佛山科学技术学院 | A kind of mixing pile laying out apparatus |
-
2021
- 2021-02-26 CN CN202110222960.2A patent/CN113091717B/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN204594465U (en) * | 2015-05-04 | 2015-08-26 | 崔成全 | Multi-functional mark post |
CN205384024U (en) * | 2016-02-26 | 2016-07-13 | 中国矿业大学 | Portable engineering measuring and sampling centering rod |
CN205188970U (en) * | 2016-03-01 | 2016-04-27 | 上海联适导航技术有限公司 | Beidou navigation locating static pressure stake system |
CN107268604A (en) * | 2017-08-10 | 2017-10-20 | 中南大学 | The construction system and construction method of a kind of hollow preformed pile |
CN207540552U (en) * | 2017-12-15 | 2018-06-26 | 王强 | It is a kind of to measure with metal mark post |
CN108489470A (en) * | 2018-04-12 | 2018-09-04 | 佛山科学技术学院 | A kind of mixing pile laying out apparatus |
Also Published As
Publication number | Publication date |
---|---|
CN113091717A (en) | 2021-07-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN203966436U (en) | A kind of four-bar linkage apparatus for demonstrating | |
CN113091717B (en) | Device for lofting piles in highway | |
CN210626514U (en) | Detection equipment of electrical automation equipment | |
CN204649257U (en) | Read apparatus surveyed by graduated cylinder for soil test | |
CN212059651U (en) | Reinforcing steel performance detection device with adjustable fixed position | |
CN216449565U (en) | Environmental soil pollution detector | |
CN213422075U (en) | Land area measuring device | |
CN212963929U (en) | Testing machine capable of doing axial fatigue and transverse vibration of fastener | |
CN207894645U (en) | A kind of real-time position monitor road surface corning machine | |
CN109932246B (en) | Geosynthetic material roof pressure creep test device | |
CN220931986U (en) | Building construction roughness check out test set | |
CN213023101U (en) | Portable auxiliary stay frame for water quality testing | |
CN111638275A (en) | Measuring point positioning device for detecting strength of concrete beam column member by ultrasonic rebound method | |
CN218970088U (en) | Pile foundation analogue means for architecture | |
CN219016463U (en) | Screen click testing device | |
CN219142507U (en) | Automatic air pressure consolidation apparatus | |
CN220453217U (en) | Intelligent road and bridge detection controller | |
CN220490437U (en) | Drill core sampling equipment for farmland soil detection | |
CN211317291U (en) | Surveying equipment for planning | |
CN211824157U (en) | Steel ruler calibrating installation convenient to centre gripping | |
CN215910353U (en) | Device for rapidly measuring degree of gloomy | |
CN219996078U (en) | Piston rod straightness accuracy check out test set | |
CN220690119U (en) | Fixing and moving positioning integrated device for measuring water parameter measuring rod | |
CN220871614U (en) | Quick locating and measuring device for hole distribution for step blasting | |
CN216433148U (en) | Full-automatic high-precision measuring device for oil measurement sample volume |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |