CN220322752U - Sampling equipment for detecting highway subgrade strength - Google Patents
Sampling equipment for detecting highway subgrade strength Download PDFInfo
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- CN220322752U CN220322752U CN202321540630.9U CN202321540630U CN220322752U CN 220322752 U CN220322752 U CN 220322752U CN 202321540630 U CN202321540630 U CN 202321540630U CN 220322752 U CN220322752 U CN 220322752U
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- sampling
- arc surface
- highway subgrade
- rotating shaft
- sampling device
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- 238000005070 sampling Methods 0.000 title claims abstract description 127
- 238000001514 detection method Methods 0.000 claims abstract description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- 239000000956 alloy Substances 0.000 claims description 2
- 238000011156 evaluation Methods 0.000 abstract description 4
- 239000002689 soil Substances 0.000 description 44
- 230000000694 effects Effects 0.000 description 22
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 4
- 235000017491 Bambusa tulda Nutrition 0.000 description 4
- 241001330002 Bambuseae Species 0.000 description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 4
- 239000011425 bamboo Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 238000005728 strengthening Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005527 soil sampling Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to the field of highway subgrade strength detection, in particular to sampling equipment for highway subgrade strength detection. The rotary table is arranged at one end of the rotary shaft, a drill bit is arranged at the other end of the rotary shaft, a spiral blade is arranged on the arc surface of the rotary shaft, and a sampling box is arranged on the arc surface of the rotary shaft; the marking structure is positioned on the arc surface of the sampling tube and comprises a supporting column, and the section of the supporting column is L-shaped. The sampling equipment for detecting the road subgrade intensity provided by the utility model has the advantages that personnel can conveniently use the marking rod to mark the side of a sampling place, so that the personnel can conveniently carry out subsequent analysis and evaluation on the road subgrade layer intensity, such as accurately determining the road section, the paragraph or the subgrade intensity condition of a specific position, and the practicability of the sampling equipment is improved.
Description
Technical Field
The utility model relates to the field of highway subgrade strength detection, in particular to sampling equipment for highway subgrade strength detection.
Background
The sampling equipment for detecting the highway subgrade intensity mainly comprises a sampling tube, a rotating shaft, a drill bit, a sampling box and other structures, and is mainly used for sampling a highway roadbed layer, wherein the sampled highway roadbed layer is used for detecting the intensity.
The utility model discloses a highway foundation soil layer sampling device with the bulletin number of CN212513733U, which relates to a highway foundation soil layer sampling device, and the technical scheme is as follows: comprises a sampling tube which is penetrated up and down, a fixing component which is arranged at the bottom opening of the sampling tube and a spiral sampling component which is arranged in the sampling tube. The connecting ring of the fixing component is provided with a plurality of fixing nails downwards. The upper half part of the rotating shaft of the spiral sampling assembly is of a screw rod structure, the movable block is of a nut structure, the lower half part of the rotating shaft is provided with spiral blades, and the top of the rotating shaft is provided with a rotary table. And a sampling box is movably arranged on the discharge hole on the side wall of the sampling cylinder. During the use, utilize the fixed needle to insert on the road foundation soil layer, rotatory carousel makes the pivot move down, and the helical blade of pivot lower half can go deep into the road foundation soil layer, upwards lifts sampling device, and the soil of road foundation soil layer holds between helical blade, and the reverse rotation pivot again, and the soil of road foundation soil layer enters into the sampling section of thick bamboo with helical blade in, places sampling device slope, can pour the soil between the helical blade into the sampling box in, accomplishes the soil sampling work to the road foundation soil layer.
With respect to the above-mentioned matters, the inventors consider that the following technical drawbacks exist: the existing sampling equipment can only collect road foundation soil layer samples, but cannot provide accurate marks about sampling places, so that after the intensity of the road foundation soil layer is detected, personnel cannot easily analyze and evaluate the intensity of the road foundation soil layer, if the road foundation intensity conditions of road sections, paragraphs or specific positions cannot be accurately determined, and the practicability of the sampling equipment can be reduced.
Therefore, there is a need to provide a new sampling device for detecting highway subgrade strength, which solves the above technical problems.
Disclosure of Invention
In order to solve the technical problems, the utility model provides sampling equipment for detecting the intensity of a highway subgrade.
The utility model provides a sampling device for detecting highway subgrade strength, which comprises:
the sampling tube is internally provided with a rotating shaft, one end of the rotating shaft is provided with a rotating disc, the other end of the rotating shaft is provided with a drill bit, the arc surface of the rotating shaft is provided with a spiral blade, and the arc surface of the rotating shaft is provided with a sampling box;
the marking structure is positioned on the arc surface of the sampling tube and comprises a supporting column, the section of the supporting column is L-shaped, one end of the supporting column is fixedly connected with the sampling tube, the other end of the supporting column is rotationally connected with a connecting column, a plurality of round holes are formed in the surface of the connecting column, a rubber plug is connected with the inner wall of the round hole in an interference mode, a marking rod is arranged at one end, far away from the supporting column, of the rubber plug, a sucking disc is arranged at one end, far away from the rubber plug, of the marking rod, and a handle is arranged on the arc surface of the marking rod;
the supporting structure is positioned on the arc surface of the sampling tube.
The effects achieved by the components are as follows: through setting up the mark structure, after sampling equipment gathers highway roadbed layer sample, personnel can conveniently use the mark pole to mark the sampling place side, and then made things convenient for personnel to carry out follow-up analysis and aassessment to highway roadbed layer intensity, if accurate road section, paragraph or the road bed intensity condition of specific position to sampling equipment's practicality has been improved.
Preferably, the marking structure further comprises a positioning ring, the positioning ring is fixedly connected with the arc surface of the support column, and the lower surface of the positioning ring is abutted against the plurality of rubber plugs.
The effects achieved by the components are as follows: when the rubber plugs move to a certain position, the rubber plugs can be abutted against the positioning rings, and the effect that a plurality of rubber plugs can quickly reach the designated position is achieved.
Preferably, the inner wall of the sucker is provided with a plurality of anti-skidding lines, and the anti-skidding lines are uniformly distributed on the inner wall of the sucker.
The effects achieved by the components are as follows: the friction force of the inner wall of the sucker can be improved by the anti-skid lines, and the effect of enabling the sucker to be firmly adsorbed on the highway is achieved.
Preferably, the arc surface of the support column is fixedly connected with a reinforcing rib, and the reinforcing rib is made of aluminum alloy.
The effects achieved by the components are as follows: the reinforcing ribs made of aluminum alloy are arranged on the support columns, so that the aluminum alloy is high in strength and light in weight, and the strength of the bending parts of the support columns can be improved.
Preferably, the supporting structure comprises a connecting ring, the inner wall of connecting ring and the circular arc face fixed connection of a sampling tube, two connecting grooves have been seted up to the circular arc face of connecting ring, the inner wall fixedly connected with locating lever of connecting groove, the circular arc face rotation of locating lever is connected with the backup pad, the lower fixed surface of backup pad is connected with a plurality of protruding thorn, one side screw thread of backup pad wears to be equipped with the screw rod, the one end and the locating lever looks butt of screw rod.
The effects achieved by the components are as follows: through setting up bearing structure, personnel can support sampling equipment through the rotation angle of adjusting the backup pad, and then make this sampling equipment can place and use on the highway subgrade that has different inclinations to this sampling equipment's application scope has been improved.
Preferably, the cross section of the supporting plate is dovetail-shaped.
The effects achieved by the components are as follows: through setting up the backup pad into the dovetail form, when the backup pad supports the sampling tube, personnel can pedal the short arm end of backup pad with the foot, have reached the fixed firm effect of messenger's sampling tube.
Preferably, the circular arc surface of the positioning rod is sleeved with a coil spring, and two ends of the coil spring are fixedly connected with one side of the inner wall of the connecting groove and the supporting plate respectively.
The effects achieved by the components are as follows: after the rotating screw rod is separated from the positioning rod, the coil spring can drive the supporting plate to move in the direction away from the highway subgrade rapidly, and the effect of conveniently storing the supporting plate is achieved.
Compared with the related art, the sampling device for detecting the intensity of the highway subgrade has the following beneficial effects:
the utility model provides a sampling device for detecting highway subgrade strength, when in use, the sampling device is firstly placed on a highway subgrade soil layer to be sampled, a rotating disc is rotated to enable a rotating shaft to move downwards, a spiral blade at the lower half part of the rotating shaft can be penetrated into the road subgrade soil layer, a sampling device is lifted upwards, soil of the road subgrade soil layer is accommodated between the spiral blades, then the rotating shaft is reversely rotated, the soil of the road subgrade soil layer enters a sampling cylinder along with the spiral blade, the sampling device is obliquely placed, the soil between the spiral blades can be poured into a sampling box, the sampling work of the soil of the road subgrade soil layer can be completed, when a sampling place is required to be marked, a connecting column is firstly rotated to drive a marking rod, when the marking rod is rotated to a proper position, a handle is pulled to drive the marking rod, the marking rod drives a rubber plug, and a round hole on the connecting column is separated, finally, the marking rod is adsorbed on the sampling place by means of the sucker, when the marking rod of the round hole needs to be supplemented, the handle is moved to drive the marking rod, the marking rod drives the rubber plug, the rubber plug is inserted into the round hole, and the marking rod can be installed, wherein the rubber plug can be abutted with the positioning ring after moving to a certain position, the effect that a plurality of rubber plugs can quickly reach the designated position is achieved, in addition, the anti-skid patterns can improve the friction force of the inner wall of the sucker, the effect that the sucker is firmly adsorbed on a highway is achieved, finally, the strength of the bending part of the supporting column can be improved by the reinforcing ribs made of aluminum alloy on the supporting column, the aluminum alloy is high in strength and light in weight, the marking structure is arranged, after the highway foundation soil layer sample is collected by the sampling equipment, personnel can conveniently use the marking rod to mark the side of the sampling place, and further, the subsequent analysis and evaluation of the road foundation soil layer strength of the highway are facilitated, such as the accurate determination of road section, paragraph or roadbed strength condition of a specific position, so that the practicability of the sampling equipment is improved.
When needs support the sampling tube, rotate screw rod and locating lever separation earlier, rotate backup pad and road surface butt again, insert subaerial protruding thorn in the backup pad, rotate screw rod and locating lever butt thereupon, after the sampling is accomplished, rotate screw rod and locating lever separation, the coil spring can drive the backup pad and remove to the direction of keeping away from highway subgrade fast, the effect of conveniently accomodating the backup pad has been reached, wherein, through setting up the backup pad to the dovetail form, when the backup pad supports the sampling tube, personnel can pedal the short arm end of backup pad with the foot, the effect that makes the sampling tube fixed firm has been reached, through setting up bearing structure, personnel can support sampling equipment through the rotation angle of adjusting the backup pad, and then make this sampling equipment can place on the highway subgrade that has different inclinations use, thereby the application scope of this sampling equipment has been improved.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a schematic view of a partial structure of the present utility model;
FIG. 3 is a schematic structural view of a marking structure according to the present utility model;
FIG. 4 is a schematic view of a part of a marking structure of the present utility model in a broken away;
FIG. 5 is a schematic view of a part of the marking structure of the present utility model;
FIG. 6 is a schematic view of a support structure according to the present utility model;
fig. 7 is an enlarged view of fig. 6 at a in accordance with the present utility model.
Reference numerals in the drawings: 1. a sampling tube; 2. a rotating shaft; 3. marking a structure; 31. a support column; 3101. a positioning ring; 32. a connecting column; 33. a round hole; 34. a rubber stopper; 35. a marking rod; 36. a suction cup; 37. reinforcing ribs; 38. a handle; 39. anti-skid lines; 4. a support structure; 41. a linking ring; 42. a connection groove; 43. a positioning rod; 44. a support plate; 45. a screw; 46. protruding thorns; 47. a coil spring; 5. a turntable; 6. a helical blade; 7. a drill bit; 8. and a sampling box.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Specific implementations of the utility model are described in detail below in connection with specific embodiments.
Referring to fig. 1 to 7, a sampling apparatus for detecting highway subgrade strength according to an embodiment of the present utility model includes:
the sampling device comprises a sampling tube 1, wherein a rotating shaft 2 is arranged in the sampling tube 1, a rotary table 5 is arranged at one end of the rotating shaft 2, a drill bit 7 is arranged at the other end of the rotating shaft 2, a spiral blade 6 is arranged on the circular arc surface of the rotating shaft 2, a sampling box 8 is arranged on the circular arc surface of the rotating shaft 2, when the sampling device is used, firstly, the sampling device is placed on a road foundation soil layer to be sampled, the rotating shaft 5 is rotated to enable the rotating shaft 2 to move downwards, the spiral blade 6 at the lower half part of the rotating shaft 2 can penetrate into the road foundation soil layer, a sampling device is lifted upwards, soil in the road foundation soil layer is contained between the spiral blades 6, the rotating shaft 2 is reversely rotated, the soil in the road foundation soil layer enters the sampling tube along with the spiral blades 6, the sampling device is obliquely placed, and the soil between the spiral blades 6 can be poured into the sampling box 8, so that the sampling work of the soil in the road foundation soil layer can be completed;
the marking structure 3 is positioned on the arc surface of the sampling tube 1;
the supporting structure 4, the supporting structure 4 is located on the arc surface of the sampling tube 1.
In the embodiment of the utility model, referring to fig. 2, 3, 4 and 5, the marking structure 3 comprises a support column 31, the section of the support column 31 is in an L shape, one end of the support column 31 is fixedly connected with the sampling tube 1, the other end of the support column 31 is rotationally connected with a connecting column 32, a plurality of round holes 33 are formed in the surface of the connecting column 32, rubber plugs 34 are connected with the inner walls of the round holes 33 in an interference manner, a marking rod 35 is arranged at one end of the rubber plugs 34 far away from the support column 31, a sucker 36 is arranged at one end of the marking rod 35 far away from the rubber plugs 34, a handle 38 is arranged on the arc surface of the marking rod 35, after a sampling device collects a road foundation layer sample, personnel can conveniently mark the side of the sampling place by using the marking rod 35, further, the subsequent analysis and evaluation of the road foundation layer strength of personnel are facilitated, such as the accurate determination of road strength conditions of road sections, paragraphs or specific positions, thereby improved sampling equipment's practicality, mark structure 3 still includes holding ring 3101, holding ring 3101 and the circular arc face fixed connection of support column 31, holding ring 3101's lower surface and a plurality of rubber buffer 34 butt, can with holding ring 3101 butt after rubber buffer 34 removes certain position, reached the effect that makes a plurality of rubber buffer 34 reach the assigned position fast, a plurality of anti-skidding line 39 has been seted up to the inner wall of sucking disc 36, anti-skidding line 39 evenly distributed is at the inner wall of sucking disc 36, anti-skidding line 39 can improve the frictional force of sucking disc 36 inner wall, the effect that makes sucking disc 36 and highway adsorb firm has been reached, the circular arc face fixedly connected with strengthening rib 37 of support column 31, strengthening rib 37 is the aluminum alloy material specifically, through the strengthening rib 37 that equipment material is the aluminum alloy on support column 31, aluminum alloy intensity is high, the weight is light, and the strength of the bending part of the support column 31 can be improved;
in the embodiment of the utility model, referring to fig. 6 and 7, the supporting structure 4 comprises a connecting ring 41, the inner wall of the connecting ring 41 is fixedly connected with the circular arc surface of the sampling tube 1, two connecting grooves 42 are formed in the circular arc surface of the connecting ring 41, a positioning rod 43 is fixedly connected with the inner wall of the connecting groove 42, the circular arc surface of the positioning rod 43 is rotatably connected with a supporting plate 44, a plurality of protruding thorns 46 are fixedly connected with the lower surface of the supporting plate 44, one side of the supporting plate 44 is threaded through a screw 45, one end of the screw 45 is abutted against the positioning rod 43, by arranging the supporting structure 4, a person can support the sampling device by adjusting the rotation angle of the supporting plate 44, and further the sampling device can be placed on road beds with different inclinations, so that the application range of the sampling device is improved, the section of the supporting plate 44 is in a dovetail shape, by arranging the supporting plate 44 in a dovetail shape, when the supporting plate 44 supports the sampling tube 1, the person can tread the short arm end of the supporting plate 44 by feet, the effect of fixing and stabilizing the sampling tube 1 is achieved, the surface of the positioning rod 43 is sleeved with a screw 45, one end of the screw 47 is abutted against the positioning rod 43, and the coil spring 45 is separated from the two ends of the supporting plate 44, and the coil spring 45 is conveniently accommodated in the direction of the supporting plate 44, and the direction is separated from the inner wall of the supporting plate 44, which is respectively;
the working principle of the sampling equipment for detecting the intensity of the highway subgrade provided by the utility model is as follows: when in use, the sampling equipment is firstly placed on a road foundation soil layer of a road to be sampled, the rotary table 5 is rotated to enable the rotary shaft 2 to move downwards, the spiral blades 6 at the lower half part of the rotary shaft 2 can penetrate into the road foundation soil layer, the sampling device is lifted upwards, soil of the road foundation soil layer is accommodated between the spiral blades 6, the rotary shaft 2 is reversely rotated, the soil of the road foundation soil layer enters the sampling cylinder along with the spiral blades 6, the sampling device is obliquely placed, the soil between the spiral blades 6 can be poured into the sampling box 8, the sampling work of the soil of the road foundation soil layer can be completed, when a sampling place is required to be marked, the connecting column 32 is firstly rotated to drive the marking rod 35, when the marking rod 35 is rotated to a proper position, the handle 38 is pulled to drive the marking rod 35, the marking rod 35 drives the rubber plug 34, the rubber plug 34 is separated from the round hole 33 on the connecting column 32, finally, the marking rod 35 is adsorbed on the sampling place by means of the sucking disc 36, so that the sampling place is marked, when the marking rod 35 of the round hole 33 needs to be supplemented, the handle 38 is moved to drive the marking rod 35, the marking rod 35 drives the rubber plug 34, the rubber plug 34 is plugged into the round hole 33, the marking rod 35 can be installed, wherein when the rubber plug 34 moves to a certain position and then is abutted with the positioning ring 3101, the effect of enabling a plurality of rubber plugs 34 to quickly reach the designated position is achieved, in addition, the anti-skid patterns 39 can improve the friction force of the inner wall of the sucking disc 36, the effect of enabling the sucking disc 36 to be firmly adsorbed with a road is achieved, finally, the strength of the aluminum alloy is high and the weight is light through the reinforcing rib 37 made of aluminum alloy, the strength of the bending part of the supporting column 31 can be improved, and after the road foundation soil layer sample is collected by the sampling device through the setting of the marking structure 3, personnel can conveniently use the marking rod 35 to mark the side of the sampling place, so that the personnel can conveniently carry out subsequent analysis and evaluation on the road foundation soil layer strength, such as accurately determining the road foundation strength condition of a road section, a paragraph or a specific position, and the practicability of the sampling equipment is improved.
When needs support sampling section of thick bamboo 1, rotate screw rod 45 and locating lever 43 separation earlier, again rotate backup pad 44 and road surface butt, insert subaerial protruding thorn 46 on the backup pad 44, rotate screw rod 45 and locating lever 43 butt thereupon, after the sampling is accomplished, rotate screw rod 45 and locating lever 43 separation, coil spring 47 can drive backup pad 44 and remove to the direction of keeping away from the highway subgrade fast, the effect of conveniently accomodating backup pad 44 has been reached, wherein, through setting up backup pad 44 into the dovetail, when backup pad 44 supports sampling section of thick bamboo 1, personnel can pedal the short arm end of backup pad 44, the effect that makes sampling section of thick bamboo 1 fixed firm has been reached, through setting up bearing structure 4, personnel can support sampling equipment through adjusting the rotation angle of backup pad 44, and then make this sampling equipment can place on the highway subgrade that has different inclinations use, thereby the application scope of this sampling equipment has been improved.
The circuits and control involved in the present utility model are all of the prior art, and are not described in detail herein.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.
Claims (7)
1. A sampling equipment for highway subgrade intensity detects usefulness, its characterized in that includes:
the sampling device comprises a sampling tube (1), wherein a rotating shaft (2) is arranged in the sampling tube (1), a rotary table (5) is arranged at one end of the rotating shaft (2), a drill bit (7) is arranged at the other end of the rotating shaft (2), a spiral blade (6) is arranged on the arc surface of the rotating shaft (2), and a sampling box (8) is arranged on the arc surface of the rotating shaft (2);
the marking structure (3), marking structure (3) are located the circular arc face of sampling tube (1), marking structure (3) include support column (31), the cross-section of support column (31) is "L" shape, one end and sampling tube (1) fixed connection of support column (31), the other end rotation of support column (31) is connected with spliced pole (32), a plurality of round hole (33) have been seted up on the surface of spliced pole (32), the inner wall interference of round hole (33) is connected with rubber buffer (34), mark pole (35) are installed to the one end that support column (31) were kept away from to rubber buffer (34), sucking disc (36) are installed to the one end that rubber buffer (34) were kept away from to mark pole (35), handle (38) are installed to the circular arc face of mark pole (35).
The supporting structure (4), the supporting structure (4) is located on the arc surface of the sampling tube (1).
2. The sampling device for detecting the strength of a highway subgrade according to claim 1, characterized in that the marking structure (3) further comprises a positioning ring (3101), the positioning ring (3101) is fixedly connected with the arc surface of the supporting column (31), and the lower surface of the positioning ring (3101) is abutted against a plurality of rubber plugs (34).
3. The sampling device for detecting the intensity of a highway subgrade according to claim 1, characterized in that the inner wall of the suction cup (36) is provided with a plurality of anti-skid patterns (39), and the anti-skid patterns (39) are uniformly distributed on the inner wall of the suction cup (36).
4. The sampling device for detecting the strength of a highway subgrade according to claim 1, characterized in that the arc surface of the supporting column (31) is fixedly connected with a reinforcing rib (37), and the reinforcing rib (37) is made of an aluminum alloy material.
5. The sampling device for highway subgrade strength detection according to claim 1, characterized in that the supporting structure (4) comprises a connection ring (41), the inner wall of the connection ring (41) is fixedly connected with the arc surface of the sampling tube (1), two connection grooves (42) are formed in the arc surface of the connection ring (41), a positioning rod (43) is fixedly connected with the inner wall of the connection groove (42), a supporting plate (44) is rotatably connected with the arc surface of the positioning rod (43), a plurality of protruding thorns (46) are fixedly connected with the lower surface of the supporting plate (44), a screw (45) is threaded on one side of the supporting plate (44), and one end of the screw (45) is abutted to the positioning rod (43).
6. The sampling device for the strength detection of highway subgrade according to claim 5, characterized in that said support plate (44) has a dovetail-like cross section.
7. The sampling device for detecting the strength of a highway subgrade according to claim 5, characterized in that the circular arc surface of the positioning rod (43) is sleeved with a coil spring (47), and two ends of the coil spring (47) are fixedly connected with one side of the inner wall of the engagement groove (42) and the supporting plate (44) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321540630.9U CN220322752U (en) | 2023-06-16 | 2023-06-16 | Sampling equipment for detecting highway subgrade strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321540630.9U CN220322752U (en) | 2023-06-16 | 2023-06-16 | Sampling equipment for detecting highway subgrade strength |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220322752U true CN220322752U (en) | 2024-01-09 |
Family
ID=89408659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321540630.9U Active CN220322752U (en) | 2023-06-16 | 2023-06-16 | Sampling equipment for detecting highway subgrade strength |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220322752U (en) |
-
2023
- 2023-06-16 CN CN202321540630.9U patent/CN220322752U/en active Active
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