CN113916721B - Portable hydraulic engineering quality detector - Google Patents
Portable hydraulic engineering quality detector Download PDFInfo
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- CN113916721B CN113916721B CN202111245517.3A CN202111245517A CN113916721B CN 113916721 B CN113916721 B CN 113916721B CN 202111245517 A CN202111245517 A CN 202111245517A CN 113916721 B CN113916721 B CN 113916721B
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- 238000001514 detection method Methods 0.000 claims abstract description 57
- 230000001360 synchronised effect Effects 0.000 claims description 14
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 5
- 238000002474 experimental method Methods 0.000 abstract description 3
- 239000000523 sample Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/36—Analysing materials by measuring the density or specific gravity, e.g. determining quantity of moisture
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention provides a portable hydraulic engineering quality detector, which relates to the technical field of hydraulic engineering and aims to solve the problems that in the hydraulic engineering quality detection process, detection errors are easy to occur in single-position data detection, a comparison experiment is absent, the detection is required to be carried out at multiple points, the instrument is required to be carried out for multiple times, and the instrument with larger volume is inconvenient to carry out, and comprises a base frame; the base frame is of a T-shaped structure, and the upper end of the base frame is of an upward convex arc-shaped structure; the sucking disc is fixedly arranged on the side wall of the rear end of the base frame; the hanging rack is vertically and fixedly arranged at the upper end of the base frame. The lower end of the holding rod is of a bent rod structure, the lower end of the holding rod is fixedly connected to the front end side wall of the lower supporting block through the fan block, on one hand, the hanging frame can be used for calibrating the vertical direction and is convenient for finding a measured middle branching line, on the other hand, the hanging frame can store and arrange the left detecting arm and the right detecting arm through the suction block, the carrying is convenient, the holding rod can be used for carrying the device, and the portability is improved.
Description
Technical Field
The invention relates to the technical field of hydraulic engineering, in particular to a portable hydraulic engineering quality detector.
Background
The hydraulic engineering is a built engineering for controlling and preparing surface water and underground water in the nature to achieve the aim of removing harm and benefiting, and a detector is needed for detecting the quality of the hydraulic engineering after the hydraulic engineering is built.
The hydraulic engineering foundation quality detection device comprises a detector, wherein a handle is connected above the outer side wall of the detector, a control button is connected to the front surface of the detector, a probe is connected to the lower end of the detector, protection mechanisms are arranged on two sides of the outer side wall of the handle, and each protection mechanism comprises a supporting rod, a supporting plate, a spring, a cavity, a limiting rod and an adjusting rod; through the setting of bracing piece, backup pad and spring, prevent to cause the injury to the staff in the hammering process, through the sliding sleeve, carry the setting of thing box and scale mark, make the staff can prevent the regulation of the different heavy object of weight to carry the hammering dynamics on carrying the thing box according to the size of hammering dynamics, carry the thing box to slide on adjusting the pole under the effect of connecting rod and sliding sleeve, reduce the difference of effort action direction, make the hammering in-process can not cause the damage to the probe of detector, do not influence the normal use of detector.
In the hydraulic engineering quality detection process, detection errors easily occur in single-position data detection, a comparison experiment is lacked, in addition, the detection is needed to be carried out at multiple points, the instrument needs to be carried out for multiple times, and the instrument with larger volume is inconvenient to carry.
Disclosure of Invention
In order to solve the technical problems, the invention provides a portable hydraulic engineering quality detector, which is used for solving the problems that in the hydraulic engineering quality detection process, detection errors are easy to occur in single-position data detection, a comparison experiment is absent, the detection is needed to be carried out at multiple points, the instrument needs to be carried for multiple times, and the instrument with larger volume is inconvenient to carry.
The invention discloses a portable hydraulic engineering quality detector, which is characterized by comprising the following specific technical means:
a portable hydraulic engineering quality detector comprises a base frame; the base frame is of a T-shaped structure, and the upper end of the base frame is of an upward convex arc-shaped structure; the sucking disc is fixedly arranged on the side wall of the rear end of the base frame; the hanging rack is vertically and fixedly arranged at the upper end of the base frame; the inner ends of the left detection arm and the right detection arm are respectively connected with the left end and the right end of the base frame in a rotating way through a rotating shaft; the sleeve block is of a cuboid structure and is fixedly arranged at the outer end of the detection arm; the moisture detector is longitudinally and slidably arranged on the sleeve block; the left pulling seat and the right pulling seat are respectively and fixedly arranged on the left side wall and the right side wall of the front end of the moisture detector, the base frame comprises a lower supporting block, the lower supporting block is vertically and fixedly butted at the middle part of the concave surface at the bottom of the base frame, the hanging frame comprises a top suction block and a holding rod, the top suction block is longitudinally and fixedly butted at the upper end of the hanging frame, the left edge and the right edge of the upper end of the top suction block are of chamfer structures, and magnets are embedded in chamfer surfaces of the top suction block; the upper end of the holding rod is vertically connected with the lower end of the top suction block, the lower end of the holding rod is of a bent rod structure, and the lower end of the holding rod is fixedly connected to the front end side wall of the lower supporting block through a fan block.
Further, the detection arm is of a telescopic rod structure, the sleeve block is fixedly arranged at the tail end of the inner rod, the detection arm comprises a synchronous gear disc, the synchronous gear disc is fixedly connected to the front end of a rotating shaft at the inner end of the detection arm, the synchronous gear discs on the left detection arm and the right detection arm are meshed with each other, the sleeve block comprises a fin plate, and the left fin plate and the right fin plate are respectively and vertically and fixedly arranged on the side walls of the left end and the right end of the sleeve block.
Further, the moisture detector comprises a detection head and a display screen, wherein the detection head is fixedly arranged at the rear end of the moisture detector, and the detection head is positioned at the rear side of the sleeve block; the display screen is fixedly arranged at the front end of the moisture detector, the pull seat comprises a pull rod, a tension spring and a magnetic plate, the pull rod is vertically and fixedly arranged at the rear end of the pull seat, and the rear end of the pull rod slides through the fin plate; the pull rod is sleeved with a tension spring, the front end of the tension spring is fixedly connected with the pull seat, and the rear end of the tension spring is fixedly connected with the fin plate; the magnetic plate is vertically and fixedly arranged at the outer end of the pull seat, polarities of magnets embedded in chamfer faces of the magnetic plate and the top suction block are different, and when the left detection arm and the right detection arm are closed, the magnetic plate is mutually sucked and tangent with the top suction block.
Compared with the prior art, the invention has the following beneficial effects:
1. the lower end of the holding rod is of a bent rod structure, the lower end of the holding rod is fixedly connected to the front end side wall of the lower supporting block through the fan block, on one hand, the hanging frame can be used for calibrating the vertical direction and is convenient for finding a measured middle branching line, on the other hand, the hanging frame can store and arrange the left detecting arm and the right detecting arm through the suction block, the carrying is convenient, the holding rod can be used for carrying the device, and the portability is improved.
2. According to the invention, the synchronous gear plates on the left and right detection arms are meshed with each other, the length of the detection arms can be adjusted so as to adapt to different measurement radiuses, the detection range is increased, the detection accuracy is improved, the two detection arms can be synchronously adjusted through the synchronous gear plates, the two moisture detectors can sample and detect the moisture density of the areas with the same height on the left and right sides, the construction quality of hydraulic engineering can be judged through the collected data, the condition that one part is detected to have inaccurate data can be avoided, and the two detection arms can be used for detecting the same position to calibrate the instrument data.
3. According to the invention, the pull rod and the tension spring can enable the moisture detector to move back and forth on the sleeve block to be adjusted so as to adapt to the actual condition of a wall, and the magnetic plate and the top suction block can store the device so as to be convenient for carrying and transferring.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic view of the closed-state right front upper side axial structure of the present invention.
Fig. 2 is an enlarged view of the structure of fig. 1 a according to the present invention.
Fig. 3 is a schematic view of the closed-state upper left rear perspective structure of the present invention.
Fig. 4 is an isometric view of the invention in an inverted portable state.
Fig. 5 is an isometric view of the invention in its deployed state.
Fig. 6 is an isometric view of an enlarged portion B of fig. 5 in accordance with the invention.
Fig. 7 is a schematic view of the front view of the invention in its unfolded state.
Fig. 8 is a right-side view of the unfolded state of the present invention.
In the figure, the correspondence between the component names and the drawing numbers is:
1. a base frame; 101. a lower support block; 2. a suction cup; 3. a hanging rack; 301. a top suction block; 302. a grip; 4. a detection arm; 401. a synchronous gear disc; 5. sleeving blocks; 501. a fin plate; 6. a moisture detector; 601. a detection head; 602. a display screen; 7. a pull seat; 701. a pull rod; 702. a tension spring; 703. a magnetic plate.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the invention but are not intended to limit the scope of the invention.
In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like 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 explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Examples:
as shown in fig. 1 to 8:
the invention provides a portable hydraulic engineering quality detector, which comprises a base frame 1; the base frame 1 is of a T-shaped structure, and the upper end of the base frame 1 is of an upward convex arc-shaped structure; the sucker 2 is fixedly arranged on the side wall of the rear end of the base frame 1; the hanging frame 3 is vertically and fixedly arranged at the upper end of the base frame 1; the inner ends of the left detecting arm 4 and the right detecting arm 4 are respectively connected to the left end and the right end of the base frame 1 through rotating shafts, as shown in fig. 1 and 5, the detecting arms 4 are of telescopic rod structures, the sleeve block 5 is fixedly arranged at the tail end of the inner rod, the detecting arms 4 comprise synchronous gear plates 401, the synchronous gear plates 401 are fixedly connected to the front ends of the rotating shafts at the inner ends of the detecting arms 4, the synchronous gear plates 401 on the left detecting arms 4 and the right detecting arms 4 are meshed with each other, the detecting arms 4 can be adjusted in length so as to adapt to different measuring radiuses, the detecting range is enlarged, the detecting accuracy is improved, the two detecting arms 4 can be synchronously adjusted through the synchronous gear plates 401, the two moisture detectors 6 can sample and detect the moisture density in the areas with the height at the left side and the right side so as to judge the construction quality of hydraulic engineering through collected data, the situation that data are inaccurate in one place can be avoided, and the two detecting arms 4 can be used for detecting the same position to calibrate instrument data;
the sleeve block 5 is of a cuboid structure, and the sleeve block 5 is fixedly arranged at the outer end of the detection arm 4; the moisture detector 6 is longitudinally and slidably arranged on the sleeve block 5; the left and right pull seats 7 are respectively and fixedly arranged on the left and right side walls of the front end of the moisture detector 6, and as shown in fig. 2 and 6, the pull seats 7 comprise pull rods 701, tension springs 702 and magnetic plates 703, the rear ends of the pull seats 7 are vertically and fixedly provided with the pull rods 701, and the rear ends of the pull rods 701 slide through the fin plates 501; the pull rod 701 is sleeved with a tension spring 702, the front end of the tension spring 702 is fixedly connected with the pull seat 7, and the rear end of the tension spring 702 is fixedly connected with the fin 501; the magnetic plate 703 is vertically and fixedly arranged at the outer end of the pull seat 7, polarities of magnets embedded in chamfer surfaces of the magnetic plate 703 and the top suction block 301 are different, when the left detection arm 4 and the right detection arm 4 are closed, the magnetic plate 703 is mutually sucked and tangent with the top suction block 301, and the pull rod 701 and the tension spring 702 can enable the moisture detector 6 to move back and forth on the sleeve block 5 to adjust so as to adapt to the actual condition of a wall, and the magnetic plate 703 can be stored with the top suction block 301 so as to facilitate carrying and transferring.
The base frame 1 comprises a lower supporting block 101, the lower supporting block 101 is vertically fixedly butted in the middle of the concave surface at the bottom of the base frame 1, and the lower supporting block 101 can be used for supporting on the ground below a hydraulic engineering wall to play a supporting role.
As shown in fig. 1 and 4, the hanging rack 3 comprises a top suction block 301 and a holding rod 302, wherein the top suction block 301 is longitudinally fixedly butted at the upper end of the hanging rack 3, the left and right edges of the upper end of the top suction block 301 are of chamfer structures, and magnets are embedded in chamfer surfaces of the top suction block 301; the upper end of holding rod 302 is connected perpendicularly with the lower extreme of top suction block 301, and the lower extreme of holding rod 302 is the bent rod structure, and the lower extreme of holding rod 302 passes through fan piece fixed connection on the front end lateral wall of lower supporting shoe 101, on the one hand, stores pylon 3 can be used to mark vertical direction, is convenient for look for measuring well separated time, on the other hand, stores pylon 3 accessible suction block 301 will be controlled two and detect arm 4 and accomodate the arrangement, portable, and holding rod 302 can be used to carry and take the device, improves portability.
As shown in fig. 6, the sleeve block 5 includes fin plates 501, and the left and right fin plates 501 are vertically and fixedly installed on the side walls of the left and right ends of the sleeve block 5, respectively, and can be used for being installed on the pull seat 7.
As shown in fig. 6, the moisture detector 6 includes a detection head 601 and a display screen 602, the detection head 601 is fixedly mounted at the rear end of the moisture detector 6, and the detection head 601 is located at the rear side of the sleeve block 5; the display screen 602 is fixedly installed at the front end of the moisture detector 6, the moisture detector 6 is used for detecting the seepage amount of water in the hydraulic engineering wall so as to detect the quality of the hydraulic engineering wall, and the moisture detector 6 can be a density detector.
Specific use and action of the embodiment:
in the use process, when the storage is needed, the left detection arm 4 and the right detection arm 4 are closed, so that the magnetic plate 703 is tangent to the top suction block 301, and a magnet is embedded in the chamfer surface of the top suction block 301; the upper end of the holding rod 302 is vertically connected with the lower end of the top suction block 301, the lower end of the holding rod 302 is of a bent rod structure, the lower end of the holding rod 302 is fixedly connected to the front end side wall of the lower support block 101 through a fan block, on one hand, the hanging frame 3 can be used for calibrating the vertical direction and is convenient for finding a measured middle branching line, on the other hand, the hanging frame 3 can store and arrange the left detecting arm 4 and the right detecting arm 4 through the suction block 301, so that the holding rod 302 is convenient to carry, and the holding rod 302 can be used for lifting a device, so that portability is improved;
when detecting, expand detection arm 4, but detection arm 4 adjustable length, in order to adapt to different measurement radiuses, make the measuring range increase, improve and detect the precision, but make two detection arms 4 synchronous adjustment through synchro gear dish 401, be convenient for make two moisture detector 6 sample to detect the moisture density to the region of left and right sides co-altitude, in order to judge hydraulic engineering construction quality through the data that gathers, can avoid detecting the condition that data is inaccurate in one place, and still can use two detection arm 4 closed state to detect same position and carry out instrument data calibration, display screen 602 fixed mounting is at the front end of moisture detector 6, moisture detector 6 is arranged in detecting the infiltration volume in the hydraulic engineering wall, in order to detect hydraulic engineering wall quality, moisture detector 6 can be the density detector.
The embodiments of the invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (2)
1. A portable hydraulic engineering quality detector which is characterized in that: the hydraulic engineering quality detector includes:
a base frame (1);
the base frame (1) is of a T-shaped structure, and the upper end of the base frame (1) is of an upward convex arc-shaped structure;
the sucking disc (2) is fixedly arranged on the side wall of the rear end of the base frame (1);
the hanging frame (3) is vertically and fixedly arranged at the upper end of the base frame (1);
the inner ends of the left detection arm (4) and the right detection arm (4) are respectively connected with the left end and the right end of the base frame (1) in a rotating way through a rotating shaft;
the sleeve block (5) is of a cuboid structure, and the sleeve block (5) is fixedly arranged at the outer end of the detection arm (4);
the moisture detector (6) is longitudinally and slidably arranged on the sleeve block (5);
the left pulling seat and the right pulling seat (7) are respectively fixedly arranged on the left side wall and the right side wall of the front end of the moisture detector (6); the hanger (3) comprises:
the top suction block (301), the top suction block (301) is longitudinally fixedly butted at the upper end of the hanging frame (3), the left and right edges of the upper end of the top suction block (301) are of chamfer structures, and magnets are embedded in chamfer surfaces of the top suction block (301); the hanger (3) further comprises:
the upper end of the holding rod (302) is vertically connected with the lower end of the jacking block (301), the lower end of the holding rod (302) is of a bent rod structure, and the lower end of the holding rod (302) is fixedly connected to the side wall of the front end of the lower supporting block (101) through a fan block; the detection arm (4) is of a telescopic rod structure, and the sleeve block (5) is fixedly arranged at the tail end of the inner rod; the detection arm (4) comprises:
the synchronous gear plate (401), the synchronous gear plate (401) is fixedly connected to the front end of the rotating shaft at the inner end of the detection arm (4), and the synchronous gear plates (401) on the left detection arm (4) and the right detection arm (4) are meshed with each other; the sleeve block (5) comprises:
the fin plates (501), the left fin plate (501) and the right fin plate (501) are respectively and vertically fixedly arranged on the side walls of the left end and the right end of the sleeve block (5); the moisture detector (6) includes:
the detection head (601) is fixedly arranged at the rear end of the moisture detector (6), and the detection head (601) is positioned at the rear side of the sleeve block (5);
the display screen (602), the said display screen (602) is fixedly installed in the front end of the moisture detector (6); the pull seat (7) comprises:
the rear end of the pull seat (7) is vertically and fixedly provided with a pull rod (701), and the rear end of the pull rod (701) slides through the fin plate (501); the pull rod (701) is sleeved with a tension spring (702), the front end of the tension spring (702) is fixedly connected with the pull seat (7), and the rear end of the tension spring (702) is fixedly connected with the fin plate (501); the pull seat (7) further comprises:
the magnetic plate (703), magnetic plate (703) perpendicular fixed mounting is in the outer end of drawing seat (7), and magnetic plate (703) are different with the embedded magnetite polarity in the chamfer face of top suction piece (301), and when two detection arms (4) were closed about, magnetic plate (703) were inhaled tangentially with top suction piece (301).
2. The portable hydraulic engineering quality detector according to claim 1, wherein: the base frame (1) comprises:
the lower support block (101) is vertically fixed and butted in the middle of the concave surface at the bottom of the base frame (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111245517.3A CN113916721B (en) | 2021-10-26 | 2021-10-26 | Portable hydraulic engineering quality detector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111245517.3A CN113916721B (en) | 2021-10-26 | 2021-10-26 | Portable hydraulic engineering quality detector |
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| Publication Number | Publication Date |
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| CN113916721A CN113916721A (en) | 2022-01-11 |
| CN113916721B true CN113916721B (en) | 2023-08-22 |
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| CN115876154B (en) * | 2023-03-07 | 2023-05-16 | 四川省水利科学研究院 | Accurate measuring device for elevation in tunnel |
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| CN111529773A (en) * | 2020-05-15 | 2020-08-14 | 威海世创医疗科技有限公司 | Craniocerebral drainage catheter |
| CN212622276U (en) * | 2020-05-18 | 2021-02-26 | 王忠伟 | Real-time detection device for building construction quality |
| CN111551561A (en) * | 2020-05-19 | 2020-08-18 | 南京航空航天大学 | Tunnel surface image acquisition device and tunnel surface quality detection system |
| CN111693196A (en) * | 2020-06-16 | 2020-09-22 | 梁诗豪 | Live embryo surface zona pellucida tension detection device |
| CN213438353U (en) * | 2020-06-17 | 2021-06-15 | 辽宁军锋机械制造有限公司 | Elastic fixing pull rod |
| CN111994778A (en) * | 2020-09-08 | 2020-11-27 | 高旭辉 | Lifting appliance device for replacing cooler in constructional engineering |
| CN214252572U (en) * | 2021-01-25 | 2021-09-21 | 周启平 | Geographic information mapping device based on Beidou third-generation satellite |
| CN214470824U (en) * | 2021-02-03 | 2021-10-22 | 何艳 | Wall straightness detection device that hangs down for building engineering |
| CN213975058U (en) * | 2021-07-13 | 2021-08-17 | 常州市安贞建设工程检测有限公司 | Portable reinforced concrete detector |
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