CN113267616A - Road detection is with road bed compactness detection device - Google Patents
Road detection is with road bed compactness detection device Download PDFInfo
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- CN113267616A CN113267616A CN202110571800.9A CN202110571800A CN113267616A CN 113267616 A CN113267616 A CN 113267616A CN 202110571800 A CN202110571800 A CN 202110571800A CN 113267616 A CN113267616 A CN 113267616A
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- 238000001514 detection method Methods 0.000 title claims abstract description 49
- 239000002689 soil Substances 0.000 claims abstract description 40
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 238000005553 drilling Methods 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims description 40
- 238000005056 compaction Methods 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 10
- 239000004576 sand Substances 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- 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
- G01N33/42—Road-making materials
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Abstract
The invention provides a roadbed compactness detection device for road detection. Road detects uses road bed compactness detection device includes: a carrier plate; the portal frame is fixedly arranged at the top of the carrier plate; the lifting seat is slidably arranged in the portal frame; the first hydraulic cylinder is fixedly arranged on the inner wall of the top of the portal frame, and an output shaft of the first hydraulic cylinder is fixedly connected with the lifting seat; the C-shaped frame is fixedly arranged on the outer wall of one side of the lifting seat; the hollow earth drilling mechanism is arranged on the C-shaped frame. The roadbed compactness detection device for road detection provided by the invention has the advantages of being capable of quickly digging a test pit on the roadbed, reducing the manual participation degree and being beneficial to keeping the original humidity of soil.
Description
Technical Field
The invention relates to the technical field of roadbed detection equipment, in particular to a roadbed compactness detection device for road detection.
Background
The roadbed compactness is one of key indexes for roadbed and pavement construction quality detection, the density condition after on-site compaction is represented, and the higher the compactness is, the higher the density is, and the better the overall performance of the material is. The sand filling method is the most common method for detecting the compaction degree of the roadbed at present, and the sand filling method is taken as a main method for measuring the density on site in many projects.
In the conventional technology, when the sand filling method is adopted for roadbed compactness detection, a chisel and an iron hammer are usually used for digging a test pit on the roadbed, so that the time consumption is long, the humidity of the soil is reduced due to exposure for a long time, and the weight of the soil is reduced, so that the final calculation result and the actual error are large.
Therefore, it is necessary to provide a roadbed compactedness detecting device for road detection to solve the above technical problems.
Disclosure of Invention
The invention aims to provide a roadbed compactness detection device for road detection, which can quickly dig and test pits on a roadbed, reduce the manual participation and be beneficial to keeping the original humidity of soil.
In order to solve the above technical problem, the roadbed compactness detecting device for road detection provided by the invention comprises: a carrier plate; the portal frame is fixedly arranged at the top of the carrier plate; the lifting seat is slidably arranged in the portal frame; the first hydraulic cylinder is fixedly arranged on the inner wall of the top of the portal frame, and an output shaft of the first hydraulic cylinder is fixedly connected with the lifting seat; the C-shaped frame is fixedly arranged on the outer wall of one side of the lifting seat; the hollow soil drilling mechanism is arranged on the C-shaped frame and comprises a rotary drum, a first gear, a first motor, a second gear, a ferrule, a discharge pipe, a material receiving cup, a discharge port and a material passing port, the rotary drum is rotatably arranged on the C-shaped frame, the first gear is fixedly sleeved on the outer wall of the rotary drum, the first motor is fixedly arranged on the inner wall of the bottom of the C-shaped frame, the second gear is fixedly sleeved on the output shaft of the first motor, the second gear is meshed with the first gear, the ferrule is rotatably sleeved on the outer wall of the rotary drum, the discharge pipe is fixedly arranged on the outer wall of the ferrule, the material receiving cup is arranged on one side of the rotary drum, the top of the material receiving cup extends into the discharge pipe and is in threaded connection with the inner wall of the discharge pipe, the discharge port is formed in the outer wall of the rotary drum, the material passing port is formed in the outer wall of the ferrule, and the material passing port is communicated with the discharge pipe; a soil lifting mechanism disposed on the C-shaped frame and the drum.
Preferably, the soil lifting mechanism includes axis of rotation, helical blade, four first direction slide bars, lifter plate, second motor and second pneumatic cylinder, four equal fixed mounting of first direction slide bar is in the top of C shape frame, the lifter plate slip cover is established four on the first direction slide bar, the axis of rotation is rotated and is installed on the lifter plate, the bottom of axis of rotation extends to in the rotary drum, helical blade sets up in the rotary drum, just helical blade fixed cover is established in the axis of rotation, second motor fixed mounting in the top of lifter plate, the output shaft of second motor with the top fixed connection of axis of rotation, the second pneumatic cylinder fixed mounting in the top of C shape frame, the output shaft of second pneumatic cylinder with lifter plate fixed connection.
Preferably, the top of support plate fixed mounting has the counter weight seat, the top of counter weight seat is fixed with the article case, the top fixed mounting of article case encloses the fender.
Preferably, four second guide slide bars distributed in a rectangular array are fixedly mounted on the inner wall of the top of the portal frame, and the four second guide slide bars penetrate through the lifting seat and are in sliding connection with the lifting seat.
Preferably, a first fixing plate is fixedly mounted at the top of the discharging pipe, the top of the first fixing plate is fixedly connected with the C-shaped frame, a second fixing plate is fixedly mounted on the outer wall of the ferrule, and the bottom end of the second fixing plate is fixedly connected with the C-shaped frame.
Preferably, the outer border of material receiving cup rim of a cup has seted up one end external screw thread, arrange the inner wall of material pipe and go up to be close to bottom mouth of pipe position department and seted up one end internal screw thread, the external screw thread with the internal thread closes soon mutually, be provided with a plurality of annular distribution antiskid sand grip that are on the outer wall of material receiving cup.
Preferably, the bottom of the rotating drum is provided with a plurality of teeth.
Preferably, an avoiding hole is formed in the top of the rotary drum, and the rotary shaft penetrates through the avoiding hole and is in sliding connection with the inner wall of the avoiding hole.
Preferably, the top fixed mounting of support plate has universal level bubble, four leveling mechanism that are the rectangular array and distribute, arbitrary one are installed to the bottom of support plate leveling mechanism all includes internal thread pipe, screw thread post and backing plate, internal thread pipe fixed mounting is in the bottom of support plate, screw thread post screw thread is installed in the internal thread is intraductal, the bottom of screw thread post extends to outside the internal thread pipe, the backing plate rotates the cover and establishes the bottom of screw thread post.
Preferably, the outer wall of the threaded column is fixedly sleeved with a hexagonal block.
Compared with the related art, the roadbed compactness detection device for road detection provided by the invention has the following beneficial effects:
the invention provides a roadbed compactness detection device for road detection, which can perform circular cutting on a roadbed to be detected through the arrangement of a hollow earth drilling mechanism, has a soil collection function, can be matched with the hollow earth drilling mechanism through the arrangement of a soil lifting mechanism, can crush and lift soil in a rotary drum of the hollow earth drilling mechanism, can finally collect the soil in a centralized manner, can rapidly complete the establishment work of a test pit, has high overall efficiency, and can save a large amount of time compared with the traditional manual pit drilling; the soil is in comparatively airtight environment by the in-process of breakage, promotion and collection, better has kept soil original humidity, is favorable to reducing final detection error.
Drawings
Fig. 1 is a front sectional view of a roadbed compactness detecting device for detecting a road according to a first embodiment of the invention;
FIG. 2 is an enlarged schematic view of portion A shown in FIG. 1;
FIG. 3 is a right side cross-sectional view of the ferrule shown in FIG. 2;
fig. 4 is a front view of a roadbed compactness detecting device for detecting a road according to a first embodiment of the present invention;
fig. 5 is a front sectional view of a roadbed compactness detecting device for detecting a road according to a second embodiment of the present invention;
fig. 6 is an enlarged schematic view of a portion B shown in fig. 5.
Reference numbers in the figures: 1. a carrier plate; 2. a gantry; 3. a lifting seat; 4. a first hydraulic cylinder; 5. a C-shaped frame; 6. a rotating drum; 7. a first gear; 8. a first motor; 9. a second gear; 10. a ferrule; 11. a discharge pipe; 12. a receiving cup; 13. a discharge outlet; 14. a material passing port; 15. a rotating shaft; 16. a helical blade; 17. a first guide slide bar; 18. a lifting plate; 19. a second motor; 20. a second hydraulic cylinder; 21. a counterweight seat; 22. an article box; 23. fencing; 24. a universal horizontal bubble; 25. an internally threaded tube; 26. a threaded post; 27. a backing plate.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
First embodiment
Referring to fig. 1 to 4, in a first embodiment of the present invention, a roadbed compactness detecting device for detecting a road includes: the self-locking universal wheel comprises a carrier plate 1, wherein four self-locking universal wheels distributed in a rectangular array are fixedly installed at the bottom of the carrier plate 1, and two handles are fixedly installed at the top of the carrier plate 1; the portal frame 2 is fixedly arranged at the top of the carrier plate 1; the lifting seat 3 is arranged in the portal frame 2 in a sliding manner; the first hydraulic cylinder 4 is fixedly arranged on the inner wall of the top of the portal frame 2, and an output shaft of the first hydraulic cylinder 4 is fixedly connected with the lifting seat 3; the C-shaped frame 5 is fixedly arranged on the outer wall of one side of the lifting seat 3; the hollow soil drilling mechanism is arranged on the C-shaped frame 5 and comprises a rotary drum 6, a first gear 7, a first motor 8, a second gear 9, a ferrule 10, a discharge pipe 11, a material receiving cup 12, a discharge port 13 and a material passing port 14, wherein the rotary drum 6 is rotatably arranged on the C-shaped frame 5, the first gear 7 is fixedly sleeved on the outer wall of the rotary drum 6, the first motor 8 is fixedly arranged on the inner wall of the bottom of the C-shaped frame 5, the second gear 9 is fixedly sleeved on the output shaft of the first motor 8, the second gear 9 is meshed with the first gear 7, the ferrule 10 is rotatably sleeved on the outer wall of the rotary drum 6, specifically, two ring bodies are arranged on the inner wall of the ferrule 10, two annular grooves are arranged on the outer wall of the rotary drum 6 and are respectively connected with the two annular grooves in a sliding manner, according to the design, under the condition that the rotation of the rotary drum 6 is not influenced, soil can be prevented from leaking, the discharge pipe 11 is fixedly arranged on the outer wall of the ferrule 10, the material receiving cup 12 is arranged on one side of the rotary drum 6, the top of the material receiving cup 12 extends into the discharge pipe 11 and is in threaded connection with the inner wall of the discharge pipe 11, the material receiving cup 12 is used for receiving soil, the discharge opening 13 is formed in the outer wall of the rotary drum 6, the material passing opening 14 is formed in the outer wall of the ferrule 10, and the material passing opening 14 is communicated with the discharge pipe 11; a soil lifting mechanism disposed on the C-shaped frame 5 and the drum 6.
The soil lifting mechanism comprises a rotating shaft 15, a helical blade 16, four first guide slide bars 17, a lifting plate 18, a second motor 19 and a second hydraulic cylinder 20, wherein the four first guide slide bars 17 are all fixedly arranged at the top of the C-shaped frame 5, the lifting plate 18 is slidably sleeved on the four first guide slide bars 17, the rotating shaft 15 is rotatably installed on the lifting plate 18, the bottom end of the rotating shaft 15 extends into the drum 6, the helical blade 16 is provided in the drum 6, and the helical blade 16 is fixedly sleeved on the rotating shaft 15, the second motor 19 is fixedly arranged on the top of the lifting plate 18, an output shaft of the second motor 19 is fixedly connected with the top end of the rotating shaft 15, the second hydraulic cylinder 20 is fixedly installed at the top of the C-shaped frame 5, and an output shaft of the second hydraulic cylinder 20 is fixedly connected with the lifting plate 18.
In order to keep the balance degree of the whole device, a counterweight seat 21 is fixedly mounted on the top of the carrier plate 1, an article box 22 is fixed on the top of the counterweight seat 21, an enclosure 23 is fixedly mounted on the top of the article box 22, the enclosure 23 is U-shaped and plays a role in blocking out wind, and the bearing of soil is carried out in the enclosure 23.
In order to limit the movement track of the lifting seat 3 and ensure the smoothness of the lifting seat, four second guide slide bars distributed in a rectangular array are fixedly mounted on the inner wall of the top of the portal frame 2, and the four second guide slide bars penetrate through the lifting seat 3 and are in sliding connection with the lifting seat 3.
Arrange the top fixed mounting of material pipe 11 and have first fixed plate, the top of first fixed plate with 5 fixed connection on the C shape frame, fixed mounting has the second fixed plate on the outer wall of lasso 10, the bottom of second fixed plate with 5 fixed connection on the C shape frame.
Connect the outer border of material cup 12 rim of a cup to seted up one end external screw thread, arrange the inner wall of material pipe 11 and go up to be close to bottom mouth of pipe position department and seted up one end internal screw thread, the external screw thread with the internal thread closes soon mutually, and anticlockwise rotation connects material cup 12 can make it and arrange material pipe 11 separation, be provided with a plurality of annular distribution antiskid sand grips that are on the outer wall of material cup 12, place the operating personnel hand and skid.
The bottom of the rotary drum 6 is provided with a plurality of teeth.
Dodge the hole has been seted up at the top of rotary drum 6, and the diameter of dodging the hole slightly is greater than the diameter of axis of rotation 15, axis of rotation 15 runs through dodge the hole and with dodge the inner wall sliding connection in hole.
In this embodiment:
when in use, tools such as a balance, a screen mesh, a sand filling cylinder and the like used by the sand filling method are placed in the article box 22, when a pit is dug, the device is pushed to a target area, then the position of the rotary drum 6 is adjusted to be aligned with a digging point in the longitudinal direction, then the first motor 8 is started to operate, the first motor 8 drives the second gear 9 to rotate, the rotary drum 6 is driven to rotate through the meshing transmission of the second gear 9 and the first gear 7, the ferrule 10 is fixed by the second fixing plate and cannot rotate, then the output shaft of the first hydraulic cylinder 4 is started to extend downwards, the first hydraulic cylinder 4 pushes the lifting seat 3 to slide downwards, the lifting seat 3 drives the C-shaped frame 5 to move, so that the rotary drum 6 which rotates continuously downwards moves, the bottom of the rotary drum 6 is provided with a plurality of teeth, the ring cutting effect is realized on a roadbed, and when the descending depth of the rotary drum 6 meets the requirement, stopping the first hydraulic cylinder 4 from operating, wherein the soil in the rotary drum 6 is sample soil to be taken out;
after the operation is finished, the second motor 19 is started to operate immediately, the second motor 19 drives the rotating shaft 15 to rotate (the rotation direction is opposite to that of the rotating drum 6), the rotating shaft 15 drives the helical blade 16 to rotate, then the output shaft of the second hydraulic cylinder 20 is started to recover, the second hydraulic cylinder 20 drives the lifting plate 18 to descend, so that the helical blade 16 which rotates continuously moves downwards, the helical blade 16 can crush soil in the rotating drum 6 and push the soil to ascend, the discharge opening 13 and the material passing opening 14 on the ferrule 10 can be conducted intermittently in the continuous rotation process of the rotating drum 6, when the soil is conducted, the ascending soil enters the discharge pipe 11 through the discharge opening 13 and the material passing opening 14 in sequence and finally falls into the material receiving cup 12, the soil is always in a relatively sealed environment, so that the moisture cannot be lost excessively, and the descending distance of the rotating shaft 15 meets the requirement, the second hydraulic cylinder 20 is closed to operate, and the first motor 8 and the second motor 19 continue to operate for a while;
after a period of time, the soil in the test pit can basically and completely enter the material receiving cup 12 (a small part of the soil remained in the test pit can be manually excavated away), then the first motor 8 and the second motor 19 are turned off to operate, when the soil is weighed, the material receiving cup 12 is rotated away from the material discharge pipe 11, then the soil collected in the material receiving cup 12 is weighed in the enclosure 23, the air flow in the enclosure 23 is relatively small, and excessive volatilization of soil moisture during weighing is avoided.
Compared with the related art, the roadbed compactness detection device for road detection provided by the invention has the following beneficial effects:
the invention provides a roadbed compactness detection device for road detection, which can perform circular cutting on a roadbed to be detected through the arrangement of a hollow earth drilling mechanism, has a soil collection function, can be matched with the hollow earth drilling mechanism through the arrangement of a soil lifting mechanism, can crush and lift soil in a rotary drum 6 of the hollow earth drilling mechanism, can finally collect the soil in a centralized manner, can rapidly complete the establishment work of a test pit, has high overall efficiency, and can save a large amount of time compared with the traditional manual pit drilling; the soil is in comparatively airtight environment by the in-process of breakage, promotion and collection, better has kept soil original humidity, is favorable to reducing final detection error.
Second embodiment:
based on the roadbed compactness detection device for road detection provided by the first embodiment of the application, the second embodiment of the application provides another roadbed compactness detection device for road detection. The second embodiment is merely a preferred way of the first embodiment, and the implementation of the second embodiment does not affect the implementation of the first embodiment alone.
The second embodiment of the present invention will be further described with reference to the drawings and the following description.
Referring to fig. 5-6, in a second embodiment of the roadbed compactness detecting device for road detection according to the present invention, a universal horizontal bubble 24 is further fixedly installed at the top of the carrier plate 1, four leveling mechanisms distributed in a rectangular array are further installed at the bottom of the carrier plate 1, each leveling mechanism includes an internal threaded pipe 25, a threaded column 26 and a backing plate 27, the internal threaded pipe 25 is fixedly installed at the bottom of the carrier plate 1, the threaded column 26 is installed in the internal threaded pipe 25 in a threaded manner, the bottom end of the threaded column 26 extends out of the internal threaded pipe 25, and the backing plate 27 is rotatably sleeved at the bottom end of the threaded column 26.
Preferably, a hexagonal block is fixedly sleeved on the outer wall of the threaded column 26.
In this embodiment:
considering that the roadbed is usually not smooth enough, the whole device works under the condition of poor levelness to cause that the set test pit is not regular enough, and then the detection result is influenced, through the addition of the universal horizontal bubble 24 and the four leveling mechanisms, when the device is pushed to a destination, the corresponding threaded columns 26 are screwed by a wrench firstly, the backing plate 27 is firstly landed, relevant operators can judge whether the whole device is in a relatively horizontal state or not by observing the universal horizontal bubble 24, and if the device is not level enough, the corresponding threaded columns 26 are screwed clockwise or anticlockwise, so that the carrier plate 1 is adjusted to be in a relatively horizontal state.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides a road detection is with road bed compactness detection device which characterized in that includes:
a carrier plate;
the portal frame is fixedly arranged at the top of the carrier plate;
the lifting seat is slidably arranged in the portal frame;
the first hydraulic cylinder is fixedly arranged on the inner wall of the top of the portal frame, and an output shaft of the first hydraulic cylinder is fixedly connected with the lifting seat;
the C-shaped frame is fixedly arranged on the outer wall of one side of the lifting seat;
the hollow soil drilling mechanism is arranged on the C-shaped frame and comprises a rotary drum, a first gear, a first motor, a second gear, a ferrule, a discharge pipe, a material receiving cup, a discharge port and a material passing port, the rotary drum is rotatably arranged on the C-shaped frame, the first gear is fixedly sleeved on the outer wall of the rotary drum, the first motor is fixedly arranged on the inner wall of the bottom of the C-shaped frame, the second gear is fixedly sleeved on the output shaft of the first motor, the second gear is meshed with the first gear, the ferrule is rotatably sleeved on the outer wall of the rotary drum, the discharge pipe is fixedly arranged on the outer wall of the ferrule, the material receiving cup is arranged on one side of the rotary drum, the top of the material receiving cup extends into the discharge pipe and is in threaded connection with the inner wall of the discharge pipe, the discharge port is formed in the outer wall of the rotary drum, the material passing port is formed in the outer wall of the ferrule, and the material passing port is communicated with the discharge pipe;
a soil lifting mechanism disposed on the C-shaped frame 5 and the drum 6.
2. The roadbed compaction degree detection device for road detection according to claim 1, wherein the soil lifting mechanism comprises a rotating shaft, a helical blade, four first guide slide bars, a lifting plate, a second motor and a second hydraulic cylinder, the four first guide slide bars are all fixedly arranged on the top of the C-shaped frame, the lifting plate is slidably sleeved on the four first guide slide bars, the rotating shaft is rotatably arranged on the lifting plate, the bottom end of the rotating shaft extends into the rotary drum, the helical blade is arranged in the rotary drum, the helical blade is fixedly sleeved on the rotating shaft, the second motor is fixedly arranged on the top of the lifting plate, the output shaft of the second motor is fixedly connected with the top end of the rotating shaft, and the second hydraulic cylinder is fixedly arranged on the top of the C-shaped frame, and the output shaft of the second hydraulic cylinder is fixedly connected with the lifting plate.
3. The roadbed compaction degree detection device for the road detection is characterized in that a counterweight seat is fixedly installed at the top of the carrier plate, an article box is fixed at the top of the counterweight seat, and a fence is fixedly installed at the top of the article box.
4. The roadbed compactness detecting device for detecting the road according to claim 1, wherein four second guide slide bars distributed in a rectangular array are fixedly arranged on the inner wall of the top of the portal frame, and the four second guide slide bars penetrate through the lifting seat and are in sliding connection with the lifting seat.
5. The roadbed compaction degree detection device for the road detection is characterized in that a first fixing plate is fixedly installed at the top of the discharge pipe, the top of the first fixing plate is fixedly connected with the C-shaped frame, a second fixing plate is fixedly installed on the outer wall of the ferrule, and the bottom end of the second fixing plate is fixedly connected with the C-shaped frame.
6. The roadbed compactness detecting device for detecting the road according to claim 1, wherein an external thread is arranged at the outer edge of the cup mouth of the material receiving cup, an internal thread is arranged at a position, close to the bottom pipe orifice, on the inner wall of the material discharging pipe, the external thread and the internal thread are screwed together, and a plurality of anti-skid convex strips distributed in an annular shape are arranged on the outer wall of the material receiving cup.
7. The roadbed compaction degree detection device for road detection as claimed in claim 1, wherein a plurality of teeth are formed at the bottom of the drum.
8. The roadbed compaction degree detection device for road detection as claimed in claim 2, wherein an avoidance hole is formed at the top of the rotary drum, and the rotary shaft penetrates through the avoidance hole and is in sliding connection with the inner wall of the avoidance hole.
9. The roadbed compactness detection device for road detection according to claim 1, wherein the top of the carrier plate is fixedly provided with universal horizontal bubbles, four leveling mechanisms distributed in a rectangular array are installed at the bottom of the carrier plate, any one of the leveling mechanisms comprises an internal thread pipe, a thread column and a base plate, the internal thread pipe is fixedly installed at the bottom of the carrier plate, the thread column is installed in the internal thread pipe in a threaded manner, the bottom end of the thread column extends out of the internal thread pipe, and the base plate is rotatably sleeved at the bottom end of the thread column.
10. The roadbed compaction degree detection device for detecting the road according to claim 9, wherein a hexagonal block is fixedly sleeved on the outer wall of the threaded column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110571800.9A CN113267616A (en) | 2021-05-25 | 2021-05-25 | Road detection is with road bed compactness detection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110571800.9A CN113267616A (en) | 2021-05-25 | 2021-05-25 | Road detection is with road bed compactness detection device |
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| CN113267616A true CN113267616A (en) | 2021-08-17 |
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| CN114991108A (en) * | 2022-04-29 | 2022-09-02 | 中交第二公路工程局有限公司 | A device of fetching earth fast for road bed compactness detects |
| CN117569288A (en) * | 2024-01-12 | 2024-02-20 | 中交建筑集团东南建设有限公司 | Intelligent detection device for filling compactness of collapsible loess subgrade |
| CN117569288B (en) * | 2024-01-12 | 2024-03-22 | 中交建筑集团东南建设有限公司 | Intelligent detection device for filling compactness of collapsible loess subgrade |
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Application publication date: 20210817 |