CN216695839U - Full-automatic accessible bituminous mixture rut testing machine - Google Patents
Full-automatic accessible bituminous mixture rut testing machine Download PDFInfo
- Publication number
- CN216695839U CN216695839U CN202220110359.4U CN202220110359U CN216695839U CN 216695839 U CN216695839 U CN 216695839U CN 202220110359 U CN202220110359 U CN 202220110359U CN 216695839 U CN216695839 U CN 216695839U
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- China
- Prior art keywords
- main body
- detection wheel
- threaded rod
- gear
- bevel gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 27
- 239000000203 mixture Substances 0.000 title claims abstract description 18
- 238000001514 detection method Methods 0.000 claims abstract description 51
- 239000010426 asphalt Substances 0.000 claims abstract description 14
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 9
- 244000309464 bull Species 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims 2
- 230000037431 insertion Effects 0.000 claims 2
- 210000001503 joint Anatomy 0.000 description 5
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000011280 coal tar Substances 0.000 description 1
- 239000011294 coal tar pitch Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000011306 natural pitch Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000011301 petroleum pitch Substances 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Abstract
The utility model discloses a full-automatic accessible asphalt mixture rut testing machine, which relates to the technical field of rut testing devices and comprises the following components: a main body; the detection wheel is arranged at the top end of the interior of the main body; a fixing mechanism; and (6) replacing the mechanism. According to the utility model, the fixing mechanism is arranged, the mechanism can realize convenient and fast fixing of the mixing plate, the mixing plate is placed on the lifting plate, the starting motor drives the bidirectional threaded rod to enable the second straight gear to rotate, the first straight gear is driven to rotate by the rotation of the second straight gear through the meshing of the toothed block, the first bevel gear is driven to rotate, the second bevel gear is driven by the meshing of the toothed block, the lifting plate drives the mixing plate to stably descend through the lifting threaded rod, the clamping plate clamps the mixing plate under the driving of the bidirectional threaded rod, and the operations are reversely operated after the test, so that the mixing plate is convenient to replace.
Description
Technical Field
The utility model relates to the technical field of rutting test devices, in particular to a full-automatic accessible asphalt mixture rutting test machine.
Background
The asphalt is a black brown complex mixture composed of hydrocarbons with different molecular weights and nonmetal derivatives thereof, is one of high-viscosity organic liquids, mostly exists in a liquid or semisolid petroleum form, has a black surface, is soluble in carbon disulfide and carbon tetrachloride, is a waterproof, moistureproof and anticorrosive organic cementing material, and can be mainly divided into coal tar asphalt, petroleum asphalt and natural asphalt: among them, coal tar pitch is a by-product of coking, petroleum pitch is a residue after crude oil distillation, natural pitch is stored underground, some forms a mineral layer or is accumulated on the surface of the earth crust, and pitch is mainly used in the industries of paint, plastics, rubber, etc., and pavements, etc.
When present testing bituminous mixture, can make into the mixture flitch of same specification with the mixture usually, thereby be convenient for the test, simultaneously through being used for carrying out the lifting operation and the drive unit who removes the operation to the testing wheel, it is experimental to drive testing wheel lift and horizontal migration, nevertheless can't stabilize fixedly to mixing the flitch when experimental, lead to mixing the flitch and take place the skew phenomenon easily, thereby influence the accuracy of test data, it is long-term test process to detect the wheel simultaneously, lead to its outer wall serious wear, and current rut test device is not convenient for change the testing wheel, thereby be not convenient for the maintenance of rut test device.
SUMMERY OF THE UTILITY MODEL
The utility model aims to: in order to solve the problem that the mixed material plate cannot be stably fixed and the detection wheel cannot be conveniently replaced, the full-automatic accessible asphalt mixture rut testing machine is provided.
In order to achieve the purpose, the utility model provides the following technical scheme: a full-automatic accessible bituminous mixture rut testing machine includes:
a main body;
the detection wheel is arranged at the top end inside the main body;
the fixing mechanism is arranged at one end of the main body, penetrates into the main body and is used for clamping and fixing the mixing plate;
the replacing mechanism is installed at the top end of the main body and is sleeved with the detection wheel, and the replacing mechanism is used for replacing the detection wheel.
As a still further scheme of the utility model: the fixing mechanism comprises a clamping plate, a motor, a two-way threaded rod, a lifting plate, first straight gears, first bevel gears, second bevel gears and second straight gears, the motor is installed at one end of the main body, the two-way threaded rod is fixed at the output end of the motor and penetrates through the inside of the main body, the clamping plate is arranged inside two ends of the main body and is mutually sleeved with the two-way threaded rod, the second straight gears are fixed at the middle position of the two-way threaded rod, the first straight gears are arranged on two sides of the second straight gears, the first bevel gears are fixed at one ends of the first straight gears, the second bevel gears are arranged on the upper surface of one end, far away from the first straight gears, of the lifting threaded rod is arranged at the center position of the bottom ends of the second bevel gears and penetrates through the gears to the lower part of the detection wheel, the lifting plate is fixed on the top end of the lifting threaded rod and is located below the detection wheel.
As a still further scheme of the utility model: change mechanism including reciprocal slider, lift slide rail, spring, spacing inserted bar, slip fixture block and fixed bull stick, the lift slide rail is installed in the inside of main part, and is located the top of detection wheel, reciprocal slider setting is in the inside of main part, and cup joints each other with lift slide rail, detection wheel, spacing inserted bar setting is located one side of detection wheel at reciprocal slider, and cup joints each other with reciprocal slider, detection wheel, fixed bull stick setting is located the opposite side of detection wheel at reciprocal slider, and cup joints each other with spacing inserted bar, the slip fixture block sets up the one side that is close to the detection wheel at fixed bull stick, and runs through fixed bull stick and contacts with spacing inserted bar, the spring sets up in one side of spacing inserted bar, and is located the inside of fixed bull stick.
As a still further scheme of the utility model: the output end of the motor is rotatably connected with the main body through a bearing, and a limiting sliding groove matched with the outer wall of the main body is formed in the position where the main body is connected with the clamping plate.
As a still further scheme of the utility model: the second straight gear is in meshed connection with the first straight gear through a tooth block, and the first bevel gear is in meshed connection with the second bevel gear through a tooth block.
As a still further scheme of the utility model: the two sides of the reciprocating slide block, which are positioned on the detection wheel, are provided with limiting hooks, the two sides of the detection wheel are provided with limiting rotating rods which are mutually sleeved with the limiting hooks and the lifting threaded rods, and the positions where the sliding fixture blocks are connected with the springs are provided with limiting baffle plates.
As a still further scheme of the utility model: and the two ends of the fixed rotating rod are provided with limiting sliding blocks, and U-shaped grooves matched with the outer walls of the limiting inserting rods are formed in the connecting positions of the limiting inserting rods and the limiting sliding blocks.
Compared with the prior art, the utility model has the beneficial effects that:
1. by arranging the fixing mechanism, the mechanism can realize convenient fixation of the mixing plate, the mixing plate is placed on the lifting plate, the starting motor drives the bidirectional threaded rod to enable the second straight-tooth gear to rotate, the first straight-tooth gear is driven to rotate by the rotation of the second straight-tooth gear through the meshing of the toothed block, the first bevel gear is driven to rotate, the second bevel gear is driven by the meshing of the toothed block, the lifting plate drives the mixing plate to stably descend through the lifting threaded rod, the clamping plate clamps the mixing plate under the driving of the bidirectional threaded rod, and the operations are reversely operated after the test, so that the mixing plate can be conveniently and conveniently replaced;
2. through setting up the change mechanism, this mechanism can realize the convenient change to detecting the wheel, drive through detecting the wheel makes the inside that spacing bull stick got into reciprocating slide, then run through spacing inserted bar to reciprocating slide's opposite side from one side of reciprocating slide, and cup joint each other with detecting the wheel, run through the inside to spacing inserted bar with fixed bull stick this moment, and make spacing slider get into the inside in the U type groove of spacing inserted bar, the inside of fixed bull stick is got into through the extrusion to the fixture block that slides simultaneously, and to the spring extrusion, then rotatory fixed bull stick makes spacing slider slide in the inside in U type groove, the spring makes the inside in U type groove of spacing slider block through the fixed bull stick of pressurized rebound promotion simultaneously, thereby realize the convenient fixed to detecting the wheel.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic overall sectional structure of the present invention;
FIG. 3 is a schematic cross-sectional view of the securing mechanism and the replacement mechanism of the present invention;
FIG. 4 is an enlarged view of a portion of the present invention at A;
fig. 5 is a partially enlarged view of the point B of the present invention.
In the figure: 1. a main body; 2. a fixing mechanism; 201. clamping the clamping plate; 202. a motor; 203. a bidirectional threaded rod; 204. lifting a threaded rod; 205. a lifting plate; 206. a first straight gear; 207. a first bevel gear; 208. a second bevel gear; 209. a second spur gear; 3. a mechanism is replaced; 301. a reciprocating slide block; 302. lifting the slide rail; 303. a spring; 304. a limiting inserted rod; 305. sliding the clamping block; 306. fixing the rotating rod; 4. and (6) detecting the wheel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 5, in an embodiment of the present invention, a full-automatic obstacle-free asphalt mixture rut testing machine includes:
a main body 1;
a detection wheel 4 arranged at the top end of the inner part of the main body 1;
the fixing mechanism 2 is arranged at one end of the main body 1, penetrates into the main body 1 and is used for clamping and fixing the mixing plate;
In this embodiment: carry out convenient installation through change mechanism 3 to detection wheel 4 fixedly, then stabilize fixedly through fixed establishment 2 to mixing the flitch, 1 inside be provided with of main part carries out lifting operation and the drive unit who removes the operation to detection wheel 4, can drive change mechanism 3 lapse through drive unit and make the bottom of detection wheel 4 and the top laminating of mixing the flitch, later 3 horizontal migration of drive unit drive change mechanism, make detection wheel 4 carry out the rut test to mixing the flitch, then carry out the reverse operation to above-mentioned operation, thereby carry out convenient change to mixing the flitch, and use for a long time and lead to wearing and tearing serious detection wheel 4 to change.
Referring to fig. 1 to 4, the fixing mechanism 2 includes a clamping plate 201, a motor 202, a two-way threaded rod 203, a lifting threaded rod 204, a lifting plate 205, a first straight gear 206, a first bevel gear 207, a second bevel gear 208 and a second straight gear 209, the motor 202 is installed at one end of the main body 1, the two-way threaded rod 203 is fixed at an output end of the motor 202 and penetrates into the main body 1, the clamping plate 201 is arranged inside two ends of the main body 1 and is sleeved with the two-way threaded rod 203, the second straight gear 209 is fixed at a middle position of the two-way threaded rod 203, the first straight gear 206 is provided with two first straight gears 206 arranged at two sides of the second straight gear 209, the first bevel gear 207 is fixed at one end of the first straight gear 206, the second bevel gear 208 is arranged on an upper surface of one end of the first bevel gear 207 far away from the first straight gear 206, the lifting threaded rod 204 is arranged at a bottom center position of the second bevel gear 208, and penetrates through the second bevel gear 208 to the lower part of the detection wheel 4, and the lifting plate 205 is fixed on the top end of the lifting threaded rod 204 and is positioned below the detection wheel 4.
In this embodiment: place the upper surface at lifter plate 205 through mixing the flitch, starter motor 202 drives two-way threaded rod 203 this moment and makes second spur gear 209 rotatory in main part 1, first spur gear 206 passes through the toothblock meshing at this moment under the rotatory drive of second spur gear 209, it rotates to drive first bevel gear 207, second bevel gear 208 passes through the toothblock meshing simultaneously under the rotatory drive of first bevel gear 207, it drives the inside that lifting threaded rod 204 makes lifter plate 205 drive the stable decline of mixing the flitch to the spacing spout of main part 1 to drive lifting threaded rod 204 through lifting threaded rod 204 outer wall spiral shell, centre gripping cardboard 201 is under the rotatory drive of two-way threaded rod 203 outer wall screw this moment, carry out the centre gripping to mixing the flitch, thereby stabilize fixedly to mixing the flitch, carry out the reverse operation to above-mentioned operation after the test, thereby be convenient to the convenient change of mixing the flitch.
Please refer to fig. 1 to 5, the replacing mechanism 3 includes a reciprocating slider 301, a lifting slide rail 302, a spring 303, a limiting inserted rod 304, a sliding block 305 and a fixed rotating rod 306, the lifting slide rail 302 is installed inside the main body 1 and located above the detection wheel 4, the reciprocating slider 301 is installed inside the main body 1 and is sleeved with the lifting slide rail 302 and the detection wheel 4, the limiting inserted rod 304 is installed at one side of the reciprocating slider 301 located at the detection wheel 4 and is sleeved with the reciprocating slider 301 and the detection wheel 4, the fixed rotating rod 306 is installed at the other side of the reciprocating slider 301 located at the detection wheel 4 and is sleeved with the limiting inserted rod 304, the sliding block 305 is installed at one side of the fixed rotating rod 306 close to the detection wheel 4 and is contacted with the limiting inserted rod 304 through the fixed rotating rod 306, and the spring 303 is installed at one side of the limiting inserted rod 304 and is located inside the fixed rotating rod 306.
In this embodiment: the detection wheel 4 is placed on the lower surface of the reciprocating slide block 301, the limit rotating rod enters the inside of the limit hook of the reciprocating slide block 301 under the driving of the detection wheel 4, so that the detection wheel 4 is conveniently and quickly pre-butted and limited, then the limit inserting rod 304 penetrates from one side of the reciprocating slide block 301 to the other side of the reciprocating slide block 301 and is mutually sleeved with the detection wheel 4, at the moment, the fixed rotating rod 306 penetrates from the other side of the reciprocating slide block 301 to the inside of the limit inserting rod 304, at the moment, the limit slide block enters the inside of the U-shaped groove of the limit inserting rod 304 under the driving of the fixed rotating rod 306, meanwhile, the sliding fixture block 305 enters the inside of the fixed rotating rod 306 through extrusion and extrudes the spring 303, then the fixed rotating rod 306 is rotated to enable the limit slide block to slide in the inside of the U-shaped groove, and at the same time, the spring 303 pushes the fixed rotating rod 306 through compression and rebounds to enable the limit slide block to be clamped in the inside of the U-shaped groove, thereby cup joint fixedly fixed to fixed bull stick 306, spacing inserted bar 304 to carry out convenient fixed to detection wheel 4, then make reciprocal slider 301 drive through lift slide rail 302 and detect wheel 4 steady decline, and roll the test to mixing the flitch, carry out the reverse operation to above-mentioned operation after long-time the use, thereby carry out convenient the change to detection wheel 4.
Please refer to fig. 2-4, the output end of the motor 202 is rotatably connected to the main body 1 through a bearing, and a position where the main body 1 is connected to the clamping plate 201 is provided with a limiting sliding slot matched with the outer wall of the main body.
In this embodiment: make centre gripping cardboard 201 carry out spacing slip in the inside of main part 1 through spacing spout.
Referring to fig. 2 to 4, the second spur gear 209 is engaged with the first spur gear 206 through a tooth block, and the first bevel gear 207 is engaged with the second bevel gear 208 through a tooth block.
In this embodiment: the second bevel gear 208 is rotated by the first bevel gear 207 through the engagement of the blocks, driven by the first straight gear 206.
Please refer to fig. 2-5, the reciprocating slider 301 is provided with a limiting hook at two sides of the detection wheel 4, a limiting rotating rod sleeved with the limiting hook and the lifting threaded rod 204 is provided at two sides of the detection wheel 4, and a limiting baffle is provided at a position where the sliding block 305 is connected with the spring 303.
In this embodiment: the sliding block 305 can slide in the fixed rotating rod 306 in a limited way through the limit baffle.
Please refer to fig. 2-5, the two ends of the fixed rotating rod 306 are provided with a limiting slide block, and a U-shaped groove matched with the outer wall of the limiting slide block is arranged at the connecting position of the limiting inserted rod 304 and the limiting slide block.
In this embodiment: make fixed bull stick 306 to carry out the butt joint with spacing inserted bar 304 through spacing slider through U type groove and fix to carry out convenient fixed to detection wheel 4.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to or changed within the scope of the present invention.
Claims (7)
1. The utility model provides a full-automatic accessible bituminous mixture rut testing machine which characterized in that includes:
a main body (1);
the detection wheel (4) is arranged at the top end inside the main body (1);
the fixing mechanism (2) is installed at one end of the main body (1), penetrates into the main body (1), and is used for clamping and fixing the mixing material plate;
and the replacing mechanism (3) is installed at the top end inside the main body (1), is sleeved with the detection wheel (4) and is used for replacing the detection wheel (4).
2. The full-automatic barrier-free asphalt mixture rutting tester as claimed in claim 1, wherein the fixing mechanism (2) comprises a clamping plate (201), a motor (202), a bidirectional threaded rod (203), a lifting threaded rod (204), a lifting plate (205), a first straight gear (206), a first bevel gear (207), a second bevel gear (208) and a second straight gear (209), the motor (202) is installed at one end of the main body (1), the bidirectional threaded rod (203) is fixed at the output end of the motor (202) and penetrates into the main body (1), the clamping plate (201) is arranged inside two ends of the main body (1) and is mutually sleeved with the bidirectional threaded rod (203), the second straight gear (209) is fixed at the middle position of the bidirectional threaded rod (203), the first straight gear (206) is provided with two, two first straight-toothed gear (206) sets up the both sides at second straight-toothed gear (209), first bevel gear (207) are fixed in the one end of first straight-toothed gear (206), second bevel gear (208) set up the one end upper surface of keeping away from first straight-toothed gear (206) in first bevel gear (207), lift threaded rod (204) set up the bottom central point department at second bevel gear (208), and run through second bevel gear (208) to the below of detecting wheel (4), lifter plate (205) are fixed on the top of lift threaded rod (204), and are located the below of detecting wheel (4).
3. The full-automatic barrier-free asphalt mixture rutting tester as claimed in claim 1, wherein the replacing mechanism (3) comprises a reciprocating slide block (301), a lifting slide rail (302), a spring (303), a limiting plunger (304), a sliding fixture block (305) and a fixed rotating rod (306), the lifting slide rail (302) is installed inside the main body (1) and located above the detection wheel (4), the reciprocating slide block (301) is arranged inside the main body (1) and is sleeved with the lifting slide rail (302) and the detection wheel (4), the limiting plunger (304) is arranged on one side of the reciprocating slide block (301) located on the detection wheel (4) and is sleeved with the reciprocating slide block (301) and the detection wheel (4), the fixed rotating rod (306) is arranged on the other side of the detection wheel (4) located on the reciprocating slide block (301) and is sleeved with the limiting plunger (304), the sliding fixture block (305) is arranged on one side, close to the detection wheel (4), of the fixed rotating rod (306), penetrates through the fixed rotating rod (306) to be in contact with the limiting insertion rod (304), and the spring (303) is arranged on one side of the limiting insertion rod (304) and located inside the fixed rotating rod (306).
4. The full-automatic accessible asphalt mixture rutting test machine of claim 2, characterized in that, the output of motor (202) passes through the bearing rotation with main part (1) and is connected, main part (1) and centre gripping cardboard (201) meet the position department be provided with rather than the spacing spout of outer wall mutual matching.
5. The full-automatic barrier-free asphalt mixture rutting tester as claimed in claim 2, wherein the second straight gear (209) is in meshed connection with the first straight gear (206) through a tooth block, and the first bevel gear (207) is in meshed connection with the second bevel gear (208) through a tooth block.
6. The full-automatic accessible asphalt mixture rutting test machine according to claim 3, wherein, the reciprocating slide block (301) is provided with a limiting hook at both sides of the detection wheel (4), a limiting rotating rod sleeved with the limiting hook and the lifting threaded rod (204) is provided at both sides of the detection wheel (4), and a limiting baffle is provided at the position where the sliding fixture block (305) is connected with the spring (303).
7. The full-automatic accessible asphalt mixture rutting test machine according to claim 3, characterized in that, the both ends of fixed bull stick (306) are provided with spacing slider, the position that the spacing inserted bar (304) meets with spacing slider is provided with the U type groove rather than outer wall assorted each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220110359.4U CN216695839U (en) | 2022-01-17 | 2022-01-17 | Full-automatic accessible bituminous mixture rut testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220110359.4U CN216695839U (en) | 2022-01-17 | 2022-01-17 | Full-automatic accessible bituminous mixture rut testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216695839U true CN216695839U (en) | 2022-06-07 |
Family
ID=81825973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220110359.4U Expired - Fee Related CN216695839U (en) | 2022-01-17 | 2022-01-17 | Full-automatic accessible bituminous mixture rut testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216695839U (en) |
-
2022
- 2022-01-17 CN CN202220110359.4U patent/CN216695839U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220607 |