CN115266290A

CN115266290A - Mold device for detecting ductility of asphalt for highway engineering

Info

Publication number: CN115266290A
Application number: CN202210973501.2A
Authority: CN
Inventors: 高战华
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-15
Filing date: 2022-08-15
Publication date: 2022-11-01

Abstract

The invention discloses a mold device for asphalt ductility detection for highway engineering, and belongs to the technical field of asphalt ductility detection. The utility model provides a highway engineering is with pitch ductility mould device for detection, the on-line screen storage device comprises a base, the base upside is connected and is fixed with U type frame, U type frame downside is equipped with pitch recovery jar, pitch recovery jar right side is equipped with the mixing tank, U type frame one side is connected and is fixed with the basin, U type frame upside is equipped with the mounting bracket, the mounting bracket upside is equipped with the mould, the mounting bracket upside is equipped with fixed subassembly, U type frame upside is equipped with removes the frame, it is equipped with and scrapes flat subassembly to remove the frame downside, the base upside installation is fixed with motor A, scrape flat subassembly through setting up, utilize two-way lead screw, can make two hot scrapers scrape to both ends from the centre of mould, can make the pitch plane level and smooth, replace artifical striking off, utilize the push pedal simultaneously, can be timely will adhere to the pitch clearance on hot scraper, be convenient for next use of hot scraper, the practicality of device is improved.

Description

Mold device for detecting ductility of asphalt for highway engineering

Technical Field

The invention relates to the technical field of asphalt ductility detection, in particular to a mold device for asphalt ductility detection in highway engineering.

Background

The asphalt ductility detection step is to mix the separant evenly, coat the separant on the inner side surfaces of the clean and dry test mold bottom plate and the two side molds, and put the test mold on the test mold bottom plate. Preparing a sample, carefully and slowly injecting the sample into the mold from one end of the test mold to the other end of the test mold for a plurality of times, and finally slightly taking out the test mold, wherein care should be taken not to mix air bubbles in the mold during filling. And cooling the test piece at room temperature for 30-40 min, placing the test piece in a constant-temperature water tank with the specified test temperature of +/-0.1 ℃, keeping the test temperature for 30min, taking out the test piece, and scraping the asphalt higher than the test mold by using a hot scraper to enable the asphalt surface to be flush with the test mold surface. The asphalt should be scraped from the middle of the test mold to both ends and the surface should be smooth. And immersing the test mold together with the bottom plate into a water tank with a specified test temperature for 1-1.5 h. The prior art CN209296495U discloses a road engineering asphalt ductility detection mold, which is provided with a transparent constant temperature water tank and a window, so that workers can conveniently observe morphological changes in the asphalt stretching process and confirm the accuracy of asphalt ductility, and the road engineering asphalt ductility detection mold has wide application prospects. However, the device has the disadvantages that the device is not convenient to scrape the asphalt higher than the test mold when in use, so that the practicability of the device is poor; meanwhile, the device is inconvenient for collecting and cleaning the scraped asphalt, so that the asphalt is wasted;

CN212031188U discloses pitch ductility detects uses mould for highway engineering, through servo motor, remove the lead screw, the slide bar, first connecting plate, the cooperation of second connecting plate and second diaphragm is used, under servo motor's drive, make to remove the lead screw and rotate, drive the motion of second diaphragm, hot scraper cuts the pitch that exceeds the examination mould, make things convenient for people to use, it is most through the pitch that the manual cutting exceeds the examination mould to have solved current pitch ductility detects uses the mould, the bare-handed snatching of workman, can scald the hand, it snatchs more troublesome problem again to dress gloves. However, the device has the disadvantages that the scraped asphalt is inconvenient to stir and mix, so that the asphalt is solidified and is inconvenient to reuse; meanwhile, the device needs to manually paint the release agent on the mold, which is troublesome;

in addition, when the conventional mold device for asphalt ductility detection is used for wiping off excessive asphalt along the edge of the mold, the asphalt is easily dropped into the water tank, and the heights of different molds are different, so that the height of a scraper needs to be adjusted when excessive asphalt is scraped off.

In view of this, we propose a mold device for detecting ductility of asphalt for highway engineering.

Disclosure of Invention

1. Technical problem to be solved

The invention aims to provide a mould device for detecting the ductility of asphalt for highway engineering, which aims to solve the problems in the background technology.

2. Technical scheme

A mold device for ductility detection of asphalt for highway engineering comprises a base, wherein a U-shaped frame is fixedly connected to the upper side of the base, an asphalt recovery tank is arranged on the lower side of the U-shaped frame, a mixing barrel is arranged on the right side of the asphalt recovery tank, a water tank is fixedly connected to one side of the U-shaped frame, a motor B is fixedly arranged on the end face, away from the U-shaped frame, of the water tank, the motor B is arranged in an inclined structure, the output end of the motor B penetrates through the outer wall of the water tank and extends to the inside of the water tank and is fixedly connected with a threaded rod, and a guide rod is fixedly connected to the inner wall of the front side of the right end of the water tank;

u type frame upside is equipped with the mounting bracket, mounting bracket one end outer wall and threaded rod outer wall threaded connection, the mounting bracket other end and guide arm outer wall sliding fit it is provided with a slidable regulating plate of constituteing by two but the same structures of split to go back spiral meshing on the threaded rod section between mounting bracket and motor B, wherein two structures are a rectangular plate, first through-hole and second through-hole have been seted up respectively on the mutual side of leaning on of these two rectangular plates, wherein the internal thread has been seted up to first through-hole, two rectangular plate concatenations back, and the threaded rod runs through two through-holes respectively with the guide arm, and the split concatenation of two rectangular plates makes the distance of slidable regulating plate and mounting bracket changeable, the mounting bracket upside is equipped with the mould, the mounting bracket upside is equipped with fixed subassembly, U type frame upside is equipped with the removal frame, it is equipped with and scrapes flat subassembly to remove the frame downside, the base upside installation is fixed with motor A.

Preferably, the asphalt recycling tank upper end through connection is fixed with connects the hopper, connect hopper upper end outer wall to pass U type frame bottom and extend to the upper portion and connect fixedly, U type frame internal connection is fixed with the seal box, the seal box top surface through rotation is connected with the puddler, the one end outer wall that the puddler is located the seal box cup joints and is fixed with bevel gear A, the puddler other end is connected and is fixed with scrapes the pole, scrape the pole lateral wall and connect hopper inner wall frictional contact.

Preferably, the mixing barrel is connected with a mixing rod in a rotating mode, the mixing barrel is fixedly connected with the base, a water pump is fixedly connected with the mixing barrel, and a spray gun is fixedly connected with the output end of the water pump through a hose.

Preferably, a rotating shaft is fixedly connected to the outer wall of the output end of the motor A, the other end of the rotating shaft penetrates through the outer wall of the asphalt recycling tank, extends into the sealing box and is fixedly sleeved with a bevel gear B, the bevel gear B is in meshing transmission with the bevel gear A, and the end part of the rotating shaft penetrates through the asphalt recycling tank and is fixedly connected with the mixing rod.

Preferably, the top surfaces of the upper sides of the two ends of the U-shaped frame are provided with sliding grooves, and the inner wall of the middle part of the U-shaped frame is of a front-back symmetrical structure and is fixedly connected with a limiting block.

Preferably, a motor B is fixedly arranged on the end face, far away from the U-shaped frame, of the water tank, the motor B is arranged in an inclined structure, the output end of the motor B penetrates through the outer wall of the water tank to extend to the inside and is fixedly connected with a threaded rod, and a guide rod is fixedly connected to the inner wall of the front side of the right end of the water tank.

Preferably, mounting bracket one end outer wall and threaded rod outer wall threaded connection, the mounting bracket other end and guide arm outer wall sliding fit, mounting bracket left wall and stopper active contact, two spacing grooves have been seted up to the mounting bracket top surface for symmetrical structure.

Preferably, the fixed component comprises a plurality of fixed blocks which are arranged in a symmetrical structure, the inner walls of the inner sides of the fixed blocks are matched with the outer wall of the die, the top surfaces of the fixed blocks are fixedly connected with triangular blocks, the bottom of the fixed block is fixedly connected with a movable block, the outer wall of the movable block is in sliding fit with the inner wall of the limiting groove, and a spring is fixedly connected between the end surface of the outer side of the movable block and the inner wall of the limiting groove.

Preferably, the removal frame is the setting of U type structure, remove frame both ends lower extreme outer wall all with spout inner wall sliding fit, it is connected with two-way lead screw to remove frame upper end inner wall rotation, it is fixed with two racks to remove the frame inner wall to be symmetrical structural connection.

Preferably, strickle the subassembly including being two sliders that symmetrical structure set up, slider upper end outer wall and removal frame upside inner wall sliding fit, slider upper end and two-way lead screw threaded connection, slider medial extremity end face is connected and is fixed with hot scraper, slider lower extreme inner wall rotates and is connected with reciprocal lead screw, reciprocal lead screw outer wall cover is equipped with the push pedal, reciprocal lead screw one end outer wall passes slider lower extreme inner wall and extends to the outside and be fixed with the gear, gear and rack toothing transmission.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

1. the assembly is strickleed off through setting up, utilizes two-way lead screw, can be so that two hot scrapers scrape to both ends from the centre of mould, can make the pitch plane level and smooth, replace the manual work to strike off, utilize the push pedal simultaneously, can be timely will adhere to the pitch clearance on hot scraper, the next use of the hot scraper of being convenient for improves the practicality of device.

2. Through setting up fixed subassembly and threaded rod, fixed subassembly can be quick fixes the mould, has avoided the mould to take place the dislocation when examining, and the threaded rod can be so that the mould is automatic to be immersed in the aquatic simultaneously, has avoided artifical manual putting into the error of the data that the aquatic caused with the mould, improves the accuracy that detects data.

3. Through setting up puddler and puddler, the puddler can keep the consistency of pitch, and the detection of the multiunit data of being convenient for, the puddler can carry out the mixing to the separant and handle, utilizes the spray gun, is convenient for spray the separant to the mould on, improves detection efficiency.

4. According to the invention, the distance between the detachable adjustable sliding plate and the mounting frame can be changed, so that the detachable adjustable sliding plate is suitable for moulds with different heights, and meanwhile, the removed asphalt can be isolated from the water tank.

Drawings

FIG. 1 is a front schematic view of the overall structure of the present invention;

FIG. 2 is a partial cross-sectional view of the front side of a partial structure of the present invention;

FIG. 3 is a front side schematic view of a portion of the structure of the present invention;

FIG. 4 is a schematic view of the left front side of the mounting bracket and the fixing member of the present invention;

FIG. 5 is a partial cross-sectional left side view of the present invention;

FIG. 6 is a left side schematic bottom view of the strike-off assembly of the present invention;

the numbering in the figures illustrates: 1. a base; 2. a U-shaped frame; 3. an asphalt recovery tank; 4. a mixing barrel; 5. a water tank; 6. a mounting frame; 7. a mold; 8. a fixing assembly; 9. a movable frame; 10. a strike-off assembly; 11. a motor A; 301. a receiving hopper; 302. a sealing box; 303. a stirring rod; 304. a bevel gear A; 305. a scraping rod; 401. a mixing rod; 402. a spray gun; 1101. a rotating shaft; 1102. a bevel gear B; 201. a chute; 202. a limiting block; 501. a motor B; 502. a threaded rod; 503. a guide bar; 601. a limiting groove; 801. a fixed block; 802. a triangular block; 803. a moving block; 804. a spring; 901. a bidirectional screw rod; 902. a rack; 1001. a slider; 1002. a hot scraper; 1003. a reciprocating screw rod; 1004. pushing a plate; 1005. a gear.

Detailed Description

Referring to fig. 1-6, the present invention provides a technical solution:

a mold device for detecting the ductility of asphalt for highway engineering comprises a base 1, wherein a U-shaped frame 2 is fixedly connected to the upper side of the base 1, an asphalt recovery tank 3 is arranged on the lower side of the U-shaped frame 2, a mixing barrel 4 is arranged on the right side of the asphalt recovery tank 3, a water tank 5 is fixedly connected to one side of the U-shaped frame 2, a motor B501 is fixedly arranged on the end face, away from the U-shaped frame 2, of the water tank 5, the motor B501 is arranged in an inclined structure, the output end of the motor B501 penetrates through the outer wall of the water tank 5 to extend into the water tank and is fixedly connected with a threaded rod 502, and a guide rod 503 is fixedly connected to the inner wall of the front side of the right end of the water tank 5;

2 upsides of U type frame are equipped with mounting

bracket

6, 6 one end outer walls of mounting bracket and threaded rod 502 outer wall threaded connection, the 6 other end of mounting bracket and guide arm 503 outer wall sliding fit still spiral meshing is provided with a slidable regulating plate of constituteing by the same structure of two splittables on the threaded rod 502 section between mounting bracket 6 and motor B501, and wherein two structures are a rectangular plate, and first through-hole and second through-hole have been seted up respectively on the mutual side of leaning on of these two rectangular plates, and wherein internal thread has been seted up to first through-hole, and two through-holes are run through respectively with guide arm 503 to threaded rod 502, and the splittable concatenation of two rectangular plates makes slidable regulating plate and mounting bracket 6's distance can change, 6 upsides of mounting bracket are equipped with

mould

7, 6 upsides of mounting bracket are equipped with fixed

subassembly

8, 2 upsides of U type frame are equipped with and move frame 9, it is equipped with and scrapes subassembly 10 to move frame 9 downside, the installation of 1 upside of base is fixed with motor A11.

Concretely, 3 upper ends through connection of pitch recovery tank are fixed with and connect hopper 301, it passes 2 bottoms of U type frame and extends to upper portion and connect fixedly to connect hopper 301 upper end outer wall, 2 internal connection of U type frame are fixed with seal box 302, seal box 302 top surface runs through to rotate and is connected with puddler 303, the one end outer wall that puddler 303 is located seal box 302 cup joints and is fixed with bevel gear A304, puddler 303 other end connection is fixed with scrapes pole 305, scrape pole 305 lateral wall and connect hopper 301 inner wall frictional contact.

In the present embodiment, the scraping bar 305 can clean the asphalt adhering to the inner wall of the receiving hopper 301, and the asphalt collecting tank 3 has a heating function.

Furthermore, mixing barrel 4 is connected with puddler 401 in the internal rotation, and mixing barrel 4 is connected fixedly with base 1, and mixing barrel 4 is connected and is fixed with the water pump, and the water pump output passes through the hose connection and is fixed with spray gun 402.

In this embodiment, the spray gun 402 may quickly coat the inner walls of the mold 7.

Still further, a rotating shaft 1101 is fixedly connected to the outer wall of the output end of the motor a11, the other end of the rotating shaft 1101 penetrates through the outer wall of the asphalt recycling tank 3 to extend into the seal box 302 and is fixedly sleeved with a bevel gear B1102, the bevel gear B1102 is in meshing transmission with a bevel gear a304, and the end of the rotating shaft 1101 penetrates through the asphalt recycling tank 3 and is fixedly connected with the mixing rod 401.

Furthermore, the top surfaces of the upper sides of the two ends of the U-shaped frame 2 are both provided with sliding grooves 201, and the inner wall of the middle part of the U-shaped frame 2 is in a front-back symmetrical structure and is fixedly connected with limiting blocks 202.

In this embodiment, the stop block 202 may allow the mounting bracket 6 to move to a fixed position.

Furthermore, a motor B501 is fixedly arranged on the end face, away from the U-shaped frame 2, of the water tank 5, the motor B501 is arranged in an inclined structure, the output end of the motor B501 penetrates through the outer wall of the water tank 5 to extend into the water tank and is fixedly connected with a threaded rod 502, and a guide rod 503 is fixedly connected to the inner wall of the front side of the right end of the water tank 5.

In this embodiment, the threaded rod 502 causes the mould 7 to be automatically immersed in water.

Furthermore, the outer wall of one end of the mounting frame 6 is in threaded connection with the outer wall of the threaded rod 502, the other end of the mounting frame 6 is in sliding fit with the outer wall of the guide rod 503, the left wall of the mounting frame 6 is in movable contact with the limiting block 202, and the top surface of the mounting frame 6 is of a symmetrical structure and is provided with two limiting grooves 601.

It should be noted that the fixing assembly 8 includes a plurality of fixing blocks 801 arranged in a symmetrical structure, inner walls of the inner sides of the fixing blocks 801 are matched with outer walls of the mold 7, triangular blocks 802 are fixedly connected to top surfaces of the fixing blocks 801, moving blocks 803 are fixedly connected to bottoms of the fixing blocks 801, outer walls of the moving blocks 803 are in sliding fit with inner walls of the limiting grooves 601, and springs 804 are fixedly connected between outer end surfaces of the moving blocks 803 and the inner walls of the limiting grooves 601.

In this embodiment, the triangular blocks 802 facilitate mounting of the mold 7 on the mounting frame 6.

It is worth noting that the movable frame 9 is a U-shaped structure, the outer walls of the lower ends of the two ends of the movable frame 9 are in sliding fit with the inner wall of the sliding groove 201, the inner wall of the upper end of the movable frame 9 is rotatably connected with a bidirectional screw 901, and the inner wall of the movable frame 9 is connected and fixed with two racks 902 in a symmetrical structure.

In this embodiment, the rack 902 can cause the push plate 1004 to move.

In addition, the strickle component 10 comprises two sliders 1001 which are arranged in a symmetrical structure, the outer wall of the upper end of each slider 1001 is in sliding fit with the inner wall of the upper side of the movable frame 9, the upper end of each slider 1001 is in threaded connection with a bidirectional screw 901, a thermal scraper 1002 is fixedly connected to the end face of the inner side of each slider 1001, a reciprocating screw 1003 is rotatably connected to the inner wall of the lower end of each slider 1001, a push plate 1004 is sleeved on the outer wall of each reciprocating screw 1003, the outer wall of one end of each reciprocating screw 1003 penetrates through the inner wall of the lower end of each slider 1001 to extend to the outside and is fixedly connected with a gear 1005, and the gears 1005 and the racks 902 are in meshing transmission.

In this embodiment, the two hot scrapers 1002 can scrape off from the middle to both sides, thereby improving the flatness of the surface.

When the ductility of asphalt needs to be detected, the rectangular plates are unlocked firstly to be separated, then the two rectangular plates holding the slidable adjusting plate slide along the threaded rod 502 and the guide rod 503 according to the height of the mold, so that the distance between the slidable adjusting plate and the mounting frame 6 is changed, then the two rectangular plates are combined and locked, the distance is controlled, so that in the subsequent synchronous sliding process of driving the slidable adjusting plate and the mounting frame 6 by the rotation of the threaded rod 502, the bottom end of the hot scraper 1002 just can touch the upper surface of the mold 7 body when the two rectangular plates touch the rightmost end of the U-shaped frame 2, then the motor A11 is utilized to drive the rotating shaft 1101 to rotate, the rotating shaft 1101 drives the bevel gear B1102 to rotate, the bevel gear B1102 drives the bevel gear A304 to rotate, the stirring rod 303 is driven to carry out mixing treatment on the asphalt in the asphalt recovery tank 3, and the asphalt can keep a uniform viscosity, meanwhile, the rotating shaft 1101 can drive the connected mixing rod 401, so that the mixing rod 401 can uniformly stir the separant in the mixing barrel 4, then the die 7 can be fixed on the mounting frame 6, when the die 7 contacts with the triangular block 802, the fixing block 801 can be separated, then after the die 7 is placed on the mounting frame 6, the fixing block 801 can limit and fix the die 7 under the action of the spring 804, then the separant can be sprayed on the inner wall of the die 7 by using the spray gun 402, then the asphalt in the asphalt recycling tank 3 is poured into the die 7, then after the die is placed for a period of time, the motor B501 can be used for driving the connected threaded rod 502, so that the asphalt on the mounting frame 6 can be moved into the water tank 5, after the die is placed for a period of time, the mounting frame 6 is lifted by using the threaded rod 502, and then the mounting frame 6 can be limited under the action of the limiting block 202, then need to strickle off the processing to the pitch that exceeds mould 7, can remove and remove frame 9, can make removal frame 9 can shift to the mounting bracket 6 upside, two hot scrapers 1002 can cut into in the pitch that is higher than mould 7 simultaneously, then rotate two-way lead screw 901, can make threaded connection's slider 1001 move to both sides, make two hot scrapers 1002 can strike off the pitch that is higher than, after gear 1005 on slider 1001 moved the position of rack 902, can make gear 1005 rotate under the effect of rack 902, thereby drive reciprocal lead screw 1003 and rotate, make push pedal 1004 can push down the pitch on hot scraper 1002, fall into receiving hopper 301, realize the recovery of pitch, then immerse mould 7 in aqueous again, slidable regulating plate seals the inner space of U type frame 2 in this process, thereby place the pitch and slide and fall in the basin.

Therefore, the detachable adjustable sliding plate can change the distance from the mounting frame, so that the asphalt remover can be suitable for molds with different heights and can isolate the removed asphalt from the water tank.

Claims

1. The utility model provides a highway engineering is with pitch ductility mould device for detection, includes base (1), its characterized in that: the upper side of the base (1) is fixedly connected with a U-shaped frame (2), the lower side of the U-shaped frame (2) is provided with an asphalt recovery tank (3), the right side of the asphalt recovery tank (3) is provided with a mixing barrel (4), one side of the U-shaped frame (2) is fixedly connected with a water tank (5), the end face, away from the U-shaped frame (2), of the water tank (5) is fixedly provided with a motor B (501), the motor B (501) is arranged in an inclined structure, the output end of the motor B (501) penetrates through the outer wall of the water tank (5) to extend into the water tank and is fixedly connected with a threaded rod (502), and the inner wall of the front side of the right end of the water tank (5) is fixedly connected with a guide rod (503);

the upper side of the U-shaped frame (2) is provided with a mounting frame (6), the outer wall of one end of the mounting frame (6) is in threaded connection with the outer wall of the threaded rod (502), the other end of the mounting rack (6) is in sliding fit with the outer wall of the guide rod (503), a section of the threaded rod (502) between the mounting frame (6) and the motor B (501) is also spirally engaged with a slidable adjusting plate consisting of two detachable same structural bodies, wherein the two structural bodies are both rectangular plates, the mutual approaching sides of the two rectangular plates are respectively provided with a first through hole and a second through hole, wherein the first through hole is provided with internal threads, after the two rectangular plates are spliced, the threaded rod (502) and the guide rod (503) respectively penetrate through the two through holes, the distance between the slidable adjusting plate and the mounting frame (6) can be changed by the detachable splicing of the two rectangular plates, the distance control enables the subsequent threaded rod (502) to rotate to drive the slidable adjusting plate and the mounting frame (6) to synchronously slide, when the two rectangular plates touch the rightmost end of the U-shaped frame (2), the bottom end of the hot scraper (1002) just can touch the upper surface of the die body (7), a mould (7) is arranged on the upper side of the mounting rack (6), a fixing component (8) is arranged on the upper side of the mounting rack (6), a movable frame (9) is arranged on the upper side of the U-shaped frame (2), a strickle component (10) is arranged on the lower side of the movable frame (9), and a motor A (11) is fixedly arranged on the upper side of the base (1).

2. The asphalt ductility detection mold device for road engineering according to claim 1, characterized in that: asphalt recycling tank (3) upper end through connection is fixed with and connects hopper (301), it passes U type frame (2) bottom and extends to upper portion and connect fixedly to connect hopper (301) upper end outer wall, U type frame (2) internal connection is fixed with seal box (302), seal box (302) top surface through rotation is connected with puddler (303), the one end outer wall that puddler (303) is located seal box (302) cup joints and is fixed with bevel gear A (304), puddler (303) other end connection is fixed with scrapes pole (305), scrape pole (305) lateral wall and connect hopper (301) inner wall friction contact.

3. The asphalt ductility detection mold device for road engineering according to claim 1, characterized in that: mixing barrel (4) inside rotation is connected with puddler (401), mixing barrel (4) are connected fixedly with base (1), mixing barrel (4) are connected and are fixed with the water pump, the water pump output passes through the hose connection and is fixed with spray gun (402).

4. The asphalt ductility detection mold device for road engineering according to claim 1, characterized in that: the outer wall of the output end of the motor A (11) is fixedly connected with a rotating shaft (1101), the other end of the rotating shaft (1101) penetrates through the outer wall of the asphalt recycling tank (3) to extend into the sealing box (302) and is fixedly connected with a bevel gear B (1102) in a sleeved mode, the bevel gear B (1102) is in meshed transmission with the bevel gear A (304), and the end portion of the rotating shaft (1101) penetrates through the asphalt recycling tank (3) and is fixedly connected with the mixing rod (401).

5. The mold device for ductility detection of asphalt for road engineering according to claim 1, characterized in that: the top surfaces of the upper sides of the two ends of the U-shaped frame (2) are provided with sliding grooves (201), and the inner wall of the middle part of the U-shaped frame (2) is of a front-back symmetrical structure and is fixedly connected with limiting blocks (202).

6. The asphalt ductility detection mold device for road engineering according to claim 1, characterized in that: the mounting bracket (6) left wall and stopper (202) swing joint, two spacing grooves (601) have been seted up to mounting bracket (6) top surface is symmetrical structure.

7. The asphalt ductility detection mold device for road engineering according to claim 1, characterized in that: the fixing assembly (8) comprises a plurality of fixing blocks (801) which are arranged in a symmetrical structure, the inner walls of the inner sides of the fixing blocks (801) are matched with the outer wall of the mold (7), the top surfaces of the fixing blocks (801) are fixedly connected with triangular blocks (802), the bottom of each fixing block (801) is fixedly connected with a moving block (803), the outer wall of each moving block (803) is in sliding fit with the inner wall of a limiting groove (601), and a spring (804) is fixedly connected between the outer end surface of each moving block (803) and the inner wall of each limiting groove (601).

8. The asphalt ductility detection mold device for road engineering according to claim 1, characterized in that: remove frame (9) and be the setting of U type structure, remove frame (9) both ends lower extreme outer wall all with spout (201) inner wall sliding fit, it is connected with two-way lead screw (901) to remove frame (9) upper end inner wall rotation, it is fixed with two racks (902) to remove frame (9) inner wall to be the symmetrical structure connection.

9. The asphalt ductility detection mold device for road engineering according to claim 1, characterized in that: the strickle subassembly (10) is including two sliders (1001) that are the symmetrical structure setting, slider (1001) upper end outer wall and removal frame (9) upside inner wall sliding fit, slider (1001) upper end and two-way lead screw (901) threaded connection, slider (1001) medial extremity end connection is fixed with hot scraper (1002), slider (1001) lower extreme inner wall rotates and is connected with reciprocal lead screw (1003), reciprocal lead screw (1003) outer wall cover is equipped with push pedal (1004), reciprocal lead screw (1003) one end outer wall passes slider (1001) lower extreme inner wall and extends to the outside and is connected and be fixed with gear (1005), gear (1005) and rack (902) meshing transmission.