CN113376363A - River levee ant hole detection and prevention device - Google Patents
River levee ant hole detection and prevention device Download PDFInfo
- Publication number
- CN113376363A CN113376363A CN202110717104.4A CN202110717104A CN113376363A CN 113376363 A CN113376363 A CN 113376363A CN 202110717104 A CN202110717104 A CN 202110717104A CN 113376363 A CN113376363 A CN 113376363A
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- river levee
- drilling
- fixed part
- detecting
- ant
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- 230000002265 prevention Effects 0.000 title claims abstract description 10
- 238000001514 detection method Methods 0.000 title claims abstract description 9
- 238000005553 drilling Methods 0.000 claims abstract description 36
- 238000000034 method Methods 0.000 claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 239000004568 cement Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 7
- 230000003028 elevating effect Effects 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 238000007569 slipcasting Methods 0.000 claims 1
- 241001465754 Metazoa Species 0.000 abstract description 4
- 230000008859 change Effects 0.000 abstract description 4
- 230000007480 spreading Effects 0.000 abstract description 3
- 230000001681 protective effect Effects 0.000 abstract 2
- 241000256602 Isoptera Species 0.000 description 12
- 238000013461 design Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 241000257303 Hymenoptera Species 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 241000826860 Trapezium Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000009366 sericulture Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M1/00—Stationary means for catching or killing insects
- A01M1/02—Stationary means for catching or killing insects with devices or substances, e.g. food, pheronones attracting the insects
- A01M1/026—Stationary means for catching or killing insects with devices or substances, e.g. food, pheronones attracting the insects combined with devices for monitoring insect presence, e.g. termites
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M2200/00—Kind of animal
- A01M2200/01—Insects
- A01M2200/011—Crawling insects
Abstract
The invention relates to the field of river channel treatment equipment, in particular to a river levee ant hole detection and prevention device. Aims to solve the problems of difficult ant or animal detection and difficult processing in the prior art. The river levee is provided with the arc-shaped protective guard made of cement, the whole river levee is in a moving trolley shape, the bottom of the river levee is provided with the roller and the clamping nail, the moving trolley comprises a fixed part and a rotating part, the bottom of the fixed part is provided with a limiting plate corresponding to the shape and position of the arc-shaped protective guard, the rotating part is provided with a lifting mechanism, the lifting mechanism is provided with a drilling element and a pneumatic rod set for driving the drilling element to change shape and position, the drilling element is installed on a rotating plate, the rotating plate is rotatably installed on a connecting rod set, and the pneumatic rod set drives the drilling element to rotate and displace. Has the advantages that: bait spreading, detecting, excavating and filling are combined into a set of machine, the work can be completed through different working methods, the labor intensity of workers is greatly reduced, and the whole structure is stable.
Description
Technical Field
The invention relates to the field of urban and rural river planning and maintenance equipment, in particular to a device for detecting, preventing and treating ant holes of river levees.
Background
Termite damage to reservoir dams is serious. The main reason is that termites are soil inhabiting social insects, huge nests are built under the ground, adult nests may have tens of thousands of individual termites, the place where queen ant lives after queen ant is called main nest, the cavity volume can be several cubic meters, even the inner and outer slopes of the dam are through, further in the long-term grouping, sericulture and nest building process, the dam is easily damaged by ant nest and star chess in the river dike soil dam, the dam is collapsed, and even when flood comes, great potential safety hazard is brought
In the disclosed technology, the prevention and control of the ant holes of the river levee mainly comprises the following improvement directions of trapping of termites, reinforcing of the river levee and burying of the ant holes, for example, in the published Chinese patent document, application No. 201711035737.7, a patent named as a termite trapping and killing device for the dam is suitable for termite protection of the dam, can effectively trap the termites and provide guarantee for installation of the dam, greatly improves the space for trapping the termites through the bait placing discs distributed in the vertical direction, improves the efficiency for trapping the termites, is also suitable for the inclined plane structure on the side face of the traditional dam for use, is convenient to install and recover, and can be repeatedly used.
Also in the published chinese patent document, application No. 201721229903.2, entitled impervious dike, a first impervious geomembrane is laid inside the dike base and completely covers the trapezium structure and the circular arc groove. The utility model discloses a setting of the body is inserted in first prevention of seepage and the second prevention of seepage body, it is very convenient at first to install, adopts the prevention of seepage board moreover, and outside parcel has the geomembrane, makes the double increase of prevention of seepage effect, effectively avoids the emergence of infiltration.
However, the applicant believes that the current state of the art has the following disadvantages: 1. the backfilling of the formed ant holes is lack of effective measures, and especially for the protection slope with cement protection arc lines, the slope is large, large-area manual excavation and landfill difficulty is large, and potential safety hazards exist; 2. the difficulty of adjustment on the slope surface is high, electric equipment cannot be used, and the reinforcing effect is unstable after backfilling; 3. the ant or animal acupoints are difficult to detect.
Disclosure of Invention
The invention aims to solve the problems that ant holes or animal holes are difficult to detect, large-area manual excavation and landfill are difficult, and potential safety hazards exist in the prior art.
The specific scheme of the invention is as follows:
the utility model provides a river levee ant cave surveys prevention and cure device is equipped with the arc rail guard that cement made on the river levee, wholly is equipped with gyro wheel and card binding nail for travelling car form bottom, and the travelling car includes fixed part and rotation portion, and the fixed part bottom is equipped with the limiting plate that corresponds with arc rail guard morpheme, is equipped with elevating system in the rotation portion, the last atmospheric pressure pole group that creeps into the component and drive and creep into the component and carry out morpheme change that is equipped with of elevating system, it installs on the rotor plate to creep into the component, the rotor plate rotates and installs on the link group, the one end of atmospheric pressure pole group is installed on the elevating platform, and the other end is installed on the link group in order to drive the rotation displacement who creeps into the component.
In specific implementation, the drilling element comprises an assembled drill rod, a drilling motor for driving the assembled drill rod, a support for mounting the assembled drill rod and the drilling motor, a lifting platform sleeved on a lifting screw rod, and the lifting screw rod connected with an output shaft of the lifting motor. An anti-rotation limiting element is arranged between the lifting mechanism and the lifting screw rod.
In specific implementation, the assembled drill rod comprises a hollow drill rod and a drill bit fixedly matched with the drill rod, corresponding internal and external threads are arranged at two ends of the drill bit to realize matching in a drilling process, a limiting protection plate is arranged at the bottom of the support, and a grouting mechanism is communicated in the drill rod. The fixed part with it connects in order to realize coaxial rotation to be equipped with the carousel formula between the rotation portion, the carousel formula is connected including installing the rotation motor in rotation portion, the output shaft of rotating the motor connects the gear, corresponds correspond the position is equipped with the gear circle in the fixed part, the gear with the gear circle meshing is equipped with the spacing collar between rotation portion and fixed part.
Or the coaxial installation of the gear ring and the fixed part is replaced by eccentric installation.
In specific implementation, the drill bit bottom end still is equipped with acid-base and surveys the original paper, acid-base is surveyed the original paper and is included the test paper that clamps or set up in the recess of bottom. The clamping nail comprises a screw-rod-shaped rotating nail, and a metal triangular plate is arranged at the bottom of the rotating nail. The fixed part bottom is equipped with spills the material chamber, the bottom of spilling the material chamber is equipped with the shower nozzle form and spills the material mouth, the shower nozzle form spills the material mouth and connects automatically controlled original paper control its and open and close.
The invention has the beneficial effects that:
the equipment chassis is stable, is mainly applied to the earth dam with the concrete arc-shaped belt, can fix the equipment by limiting the concrete arc-shaped belt, effectively prevents the equipment from toppling over, has low potential safety hazard, further reinforces the working state by the design of clamping nails, and can fill high-density earth and stones when the equipment exits, thereby improving the strength of the earth dam;
due to the multi-motor multi-degree-of-freedom design, the device can be adjusted with large margin, can adapt to a plurality of working angles and states, and is convenient and quick to adjust;
bait scattering, detecting, excavating and filling are combined into a set of machine by utilizing the characteristics of dams and the life habits of termites, the work can be completed by different working methods, and the labor intensity of workers is greatly reduced;
the design of the limiting ring ensures that only the rotating part and the fixed part rotate, the freedom degrees in other directions are limited, and the whole structure is more stable;
the coaxial rotation is replaced by eccentric rotation and eccentric arrangement so as to timely adjust the drilling position and further expand the displacement space of the drill bit;
the acid-base detection element can detect whether the probed area receives termite attack, so as to judge whether the termite distribution exists in the area;
the design of the bit screwed joint can expand the drilling depth, drilling and backfilling are completed together, and damage to the earth dam can be reduced.
Drawings
FIG. 1 is a front view of the structure of the present invention;
FIG. 2 is a top view of the structure of the present invention;
FIG. 3 is a left side view of the structure of the present invention;
FIG. 4 is a right side view of the structure of the present invention;
FIG. 5 is a perspective view of the structure of the present invention;
FIG. 6 is a perspective view of another angle of the structure of the present invention;
FIG. 7 is a schematic view of a state of use in the present invention;
FIG. 8 is a schematic view of the structure of the snap-fit nail of the present invention;
FIG. 9 is a front view of another operational state of the present invention;
names of components in the drawings: 1. a roller; 2. clamping and nailing; 3. a fixed part; 4. a rotating part; 5. a limiting plate; 6. a drilling element; 61. a limiting protection plate; 62. a drilling motor; 63. a drill stem; 64. a drill bit; 65. a support; 66. a linkage; 68. a lifting platform; 69. a lifting motor; 7. a pneumatic rod set; 8. a set square; 9. a nozzle-shaped material scattering port; 10. a rotating motor connected in a rotating disc manner; 11. a river channel.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example 1
An arc-shaped guard fence made of cement is arranged on a river levee, the whole river levee is a moving trolley, the bottom of the moving trolley is provided with a roller 1 and a clamping nail 2, the moving trolley comprises a fixing portion 3 and a rotating portion 4, the bottom of the fixing portion 3 is provided with a limiting plate 5 corresponding to the shape and the position of the arc-shaped guard fence, the rotating portion 4 is provided with a lifting mechanism, the lifting mechanism is provided with a drilling element 6 and a pneumatic rod group 7 for driving the drilling element 6 to change the shape and the position, the drilling element 6 is installed on a rotating plate, the rotating plate is rotatably installed on a connecting rod group 66, one end of the pneumatic rod group 7 is installed on a lifting platform 68, and the other end of the pneumatic rod group is installed on the connecting rod group 66 to drive the drilling element 6 to rotate and move.
The drilling element 6 comprises an assembled drill rod 63, a drilling motor 62 for driving the assembled drill rod 63, and a bracket 65 for mounting the assembled drill rod 63 and the drilling motor 62, wherein the lifting platform is sleeved on a lifting screw rod, and the lifting screw rod is connected with an output shaft of the lifting motor. An anti-rotation limiting element is arranged between the lifting mechanism and the lifting screw rod.
The assembled drill rod 63 comprises a hollow drill rod 63 and a drill bit 64 fixedly matched with the drill rod 63, corresponding internal and external threads are arranged at two ends of the drill bit 64 to realize matching in a drilling process, a limiting protection plate 61 is arranged at the bottom of the support 65, and a grouting mechanism is communicated in the drill rod.
The bottom end of the drill 64 is also provided with an acid-base detection element which comprises a clamped test paper or a groove arranged at the bottom.
The clamping nail 2 comprises a screw-shaped rotary nail, and a metal triangular plate 8 is arranged at the bottom of the rotary nail.
The bottom of fixed part 3 is equipped with spills the material chamber, and the bottom of spilling the material chamber is equipped with the shower nozzle form and spills material mouth 9, and the shower nozzle form spills material mouth 9 and connects automatically controlled original paper control its and open and close.
In this embodiment, the device operating process is as follows, and specifically, the device is divided into two operating modes according to different time periods.
Firstly, in the breeding period of ants in 4-10 months every year, a maintainer observes whether animal holes or ant hole outlets exist on a dam or not above a water surface line, when the ant hole outlets are observed, marks are made, a school bus is pushed to move to the ant hole outlets, a nozzle-shaped material spreading port 9 works to spray baits, and pesticide spreading in an ant nest is achieved.
Secondly, before the flood season comes, the process of removing ants and fixing the dam needs to be completed, the movable trolley is pushed onto the slope surface of the earth dam, the position of the rotating plate is adjusted by using the arc-shaped guard rail to limit and fix the movable trolley above a suspected area, after the movable trolley is fixed, the motor and the motor in the rotating part are driven by the air pressure rod group, the position of the rotating plate is adjusted, in the process, the drill rod part is vertically downward under the action of gravity, and when the drill rod part contacts the dam surface, the motor is drilled vertically downward. In the drilling process, meet the stress reduction, can judge and touch the nest, when the degree of depth is not enough, can utilize screw-thread fit to pass through the length of assembling the extension well drilling pole in drilling. Or further, when the drill rod is reversely rotated out after the drilling is finished, whether acid substances released by ants for protecting the nest exist on the surface of the drill rod is observed, and the ant colony condition is judged.
After the ant colony condition is touched and decided, can adopt the mode that utilizes the external liquid pipeline of cavity drilling rod to pour liquid medicine and cement in proper order on the one hand, play the effect of killing ant and consolidating dykes and dams, on the other hand can change the turning of drilling rod, the in-process of lifting, reverse filling simultaneously, the in-process of filling out possesses the pressurized effect. The process of filling soil can also be supplemented with manual assistance.
In the whole process, the clamping and nailing fixing effect at the bottom of the moving trolley is good, and the center of gravity is stable. Especially, the triangular plate further has the reinforcing effect.
In the embodiment, the diameter of the drill rod is between 3 cm and 10 cm, so that various operations and drill rod replacement are facilitated, and the positioning is accurate. Meanwhile, the looseness of the dam body is reduced as much as possible. Meanwhile, drilling and landfill are completed in a matched manner in any process. According to the situation, the detection is mainly carried out, or the artificial landfill, the artificial auxiliary landfill, the reverse drill rod soil compaction landfill or the cement material grouting landfill are carried out.
Example 2
The principle of the present embodiment is the same as that of embodiment 1, and the specific difference is that the coaxial installation of the gear ring and the fixing portion 3 is replaced by the eccentric installation. The available range of the drill bit is further expanded, the moving times are reduced in the working process, and the working area of the equipment is expanded to the greatest extent. The working range of the drill rod is expanded by combining the fixed part and the rotating part in the process.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a river levee ant cave detection prevention and cure device, is equipped with the arc rail guard that cement made on the river levee which characterized in that: wholly be equipped with gyro wheel (1) and clamp nail (2) for travelling car form bottom, travelling car includes fixed part (3) and rotation portion (4), and fixed part (3) bottom is equipped with limiting plate (5) that correspond with arc rail guard shape position, is equipped with elevating system on rotation portion (4), last being equipped with of elevating system creeps into component (6) and drives and creeps into component (6) and carry out atmospheric pressure pole group (7) that the shape position changes, it installs on the rotor plate to creep into component (6), the rotor plate rotates and installs on linkage (66), the one end of atmospheric pressure pole group (7) is installed on elevating platform (68), and the other end is installed on linkage (66) in order to drive the rotary displacement who creeps into component (6).
2. The apparatus for detecting and controlling the ant colony in the river levee according to claim 1, wherein: the drilling element (6) comprises an assembled drill rod (63), a drilling motor (62) for driving the assembled drill rod (63), a support (65) for installing the assembled drill rod (63) and the drilling motor (62), a lifting table is sleeved on a lifting screw rod, the lifting screw rod is connected with an output shaft of the lifting motor, and an anti-rotation limiting element is arranged between the lifting mechanism and the lifting screw rod.
3. The apparatus for detecting and controlling the ant colony in the river levee according to claim 1, wherein: assembled drilling rod (63) including hollow drilling rod (63) and with drilling rod (63) fixed fit's drill bit (64), the cooperation in order to realize the drilling process of drill bit (64) both ends set up corresponding internal and external screw thread, support (65) bottom is equipped with spacing protection shield (61), intercommunication slip casting mechanism in the drilling rod.
4. The apparatus for detecting and controlling the ant colony in the river levee according to claim 1, wherein: fixed part (3) with it connects in order to realize coaxial rotation to be equipped with the carousel formula between rotation portion (4), the carousel formula is connected including installing the rotation motor in rotation portion (4), the output shaft connecting gear that rotates the motor, corresponds it is equipped with the gear circle to correspond the position in fixed part (3), the gear with the gear circle meshing is equipped with the spacing collar between rotation portion (4) and fixed part (3).
5. The apparatus for detecting and controlling the ant colony in the river levee according to claim 4, wherein: the coaxial installation of the gear ring and the fixing part (3) is replaced by eccentric installation.
6. The apparatus for detecting and controlling the ant colony in the river levee according to claim 4, wherein: the bottom end of the drill bit (64) is further provided with an acid-base detection element which comprises clamped test paper or a groove arranged at the bottom.
7. The apparatus for detecting and controlling the ant colony in the river levee according to claim 1, wherein: the clamping nail (2) comprises a screw-shaped rotary nail, and a metal triangular plate (8) is arranged at the bottom of the rotary nail.
8. The apparatus for detecting and controlling the ant colony in the river levee according to claim 1, wherein: the material scattering cavity is arranged at the bottom of the fixing portion (3), the nozzle-shaped material scattering opening (9) is arranged at the bottom of the material scattering cavity, and the nozzle-shaped material scattering opening (9) is connected with an electric control element to control the opening and closing of the electric control element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110717104.4A CN113376363A (en) | 2021-06-28 | 2021-06-28 | River levee ant hole detection and prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110717104.4A CN113376363A (en) | 2021-06-28 | 2021-06-28 | River levee ant hole detection and prevention device |
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| Publication Number | Publication Date |
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| CN113376363A true CN113376363A (en) | 2021-09-10 |
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| CN202110717104.4A Pending CN113376363A (en) | 2021-06-28 | 2021-06-28 | River levee ant hole detection and prevention device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115039747A (en) * | 2022-05-26 | 2022-09-13 | 长春理工大学 | Ant point removing equipment |
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| WO1993023998A1 (en) * | 1992-06-01 | 1993-12-09 | University Of Florida | Novel methods and materials for pest management |
| JP2000083551A (en) * | 1998-09-09 | 2000-03-28 | Shoji Yamamoto | Controlling method of termite and artificial termite nest used in the method |
| WO2008051501A2 (en) * | 2006-10-23 | 2008-05-02 | Dow Agrosciences Llc | Bedbug detection, monitoring and control techniques |
| CN111789095A (en) * | 2020-07-04 | 2020-10-20 | 河南省水利科学研究院 | Ant track efficient and accurate treatment method |
| CN111990389A (en) * | 2020-09-11 | 2020-11-27 | 上海旭宇信息科技有限公司 | Termite detection trapping and killing device |
| CN212877268U (en) * | 2020-06-09 | 2021-04-06 | 浙江益康白蚁防治有限公司 | Termite trapping alarm device |
| CN213038373U (en) * | 2020-06-12 | 2021-04-23 | 湖北禹龙水利水电工程有限公司 | Dyke danger-removing reinforcement cone-exploration grouting device |
-
2021
- 2021-06-28 CN CN202110717104.4A patent/CN113376363A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993023998A1 (en) * | 1992-06-01 | 1993-12-09 | University Of Florida | Novel methods and materials for pest management |
| JP2000083551A (en) * | 1998-09-09 | 2000-03-28 | Shoji Yamamoto | Controlling method of termite and artificial termite nest used in the method |
| WO2008051501A2 (en) * | 2006-10-23 | 2008-05-02 | Dow Agrosciences Llc | Bedbug detection, monitoring and control techniques |
| CN212877268U (en) * | 2020-06-09 | 2021-04-06 | 浙江益康白蚁防治有限公司 | Termite trapping alarm device |
| CN213038373U (en) * | 2020-06-12 | 2021-04-23 | 湖北禹龙水利水电工程有限公司 | Dyke danger-removing reinforcement cone-exploration grouting device |
| CN111789095A (en) * | 2020-07-04 | 2020-10-20 | 河南省水利科学研究院 | Ant track efficient and accurate treatment method |
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| Title |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115039747A (en) * | 2022-05-26 | 2022-09-13 | 长春理工大学 | Ant point removing equipment |
| CN115039747B (en) * | 2022-05-26 | 2023-08-08 | 长春理工大学 | Ant cave cleaning equipment |
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