Asphalt concrete pressure water stability test device

Abstract

The invention discloses an asphalt concrete pressure water stability test device, and belongs to the technical field of asphalt concrete performance test devices.The asphalt concrete pressure water stability test device comprises a treatment box, the upper portion and the lower portion of the side wall of the treatment box are connected with a water inlet pipe and a water drainage pipe respectively, and a top plate is installed on the treatment box; a plurality of hinged first movable cover plates are circumferentially distributed at the top of the top plate, a movable assembly is arranged between the top plate and the bottom of the treatment box, a plurality of placing assemblies for placing asphalt concrete test pieces are circumferentially connected to the movable assembly, and an overturning assembly for driving the placing assemblies to rotate is arranged on the movable assembly; a water circulation assembly is arranged on the treatment box, an electric heater is arranged at the bottom of the treatment box, a temperature sensor is arranged on the inner wall of the treatment box, and a controller electrically connected with electric equipment in the device is arranged on the top plate. The device has the advantages of water temperature regulation and control, stable placement, flexible overturning, comprehensive and sufficient contact, high evaluation precision, reliable structure, simplicity, convenience and practicability.

Description

Technical Field

[0001] The invention relates to the technical field of asphalt concrete performance test devices, and in particular to an asphalt concrete pressure water stability test device. Background Art

[0002] Asphalt concrete is composed of graded aggregate (aggregate), stone powder (filler) and asphalt (binder). As a core material in road construction, the performance of asphalt concrete directly affects the service life and driving safety of the road. In order to ensure that asphalt concrete meets the requirements of road engineering, its water stability performance needs to be evaluated.

[0003] When processing the experimental group of asphalt concrete specimens, most of the time the asphalt concrete specimens are directly placed at the bottom of the immersion box, immersed in constant temperature water at 60°C for 48 hours, then taken out and wiped dry, and then their stability is measured. However, the results obtained by this test method are not accurate. Since the asphalt concrete specimens are placed at the bottom of the immersion box, the bottom surface of the asphalt concrete specimens cannot effectively contact the water, and rely on gravity or capillary action to absorb water. The insufficient contact area significantly reduces the saturation efficiency, making it impossible for the asphalt concrete specimens to be in an effective saturated state within 48 hours. The immersion time needs to be extended to ensure the saturation effect. However, extending the immersion time reduces the test efficiency, and it is impossible to conduct a fast and efficient water stability performance test on the asphalt concrete specimens.

[0004] Therefore, it is necessary to provide an asphalt concrete pressure water stability test device to solve the above problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, an embodiment of the present invention aims to provide an asphalt concrete pressure water stability test device to solve the problems in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: An asphalt concrete pressure water stability test device comprises a treatment box, the upper and lower parts of the side walls of the treatment box are respectively connected with a water inlet pipe and a drain pipe, a top plate is installed on the treatment box, a plurality of hinged first movable cover plates are circumferentially distributed on the top of the top plate, an electric heater is arranged at the bottom of the treatment box, a temperature sensor is arranged on the inner wall of the treatment box, and a controller electrically connected to the electrical equipment in the device is arranged on the top plate; and further comprises: A movable assembly is disposed between the top plate and the bottom of the processing box; A placing component, wherein the movable component is circumferentially connected with a plurality of placing components, and the placing components are used to place the asphalt concrete specimen; And a flip component is arranged on the movable component, and the flip component is used for driving the placement component to rotate.

[0007] As a further scheme of the present invention, the movable component includes a fixed support plate fixedly arranged inside the processing box, the fixed support plate is rotatably connected to a screw rod, the top end of the screw rod is connected to a motor installed on the top plate, a threaded sleeve is threadedly sleeved on the screw rod, a plurality of cross plates are circumferentially distributed on the outer side of the threaded sleeve, a connecting sleeve is rotatably provided between the fixed support plate and the top plate, a plurality of guide grooves are circumferentially distributed on the side wall of the connecting sleeve, a lifting slide seat is slidably provided in the guide groove and clamped with the corresponding cross plate, a first rotating rod is rotatably provided on the lifting slide seat, and the inner end of the first rotating rod is rotatably matched with the threaded sleeve.

[0008] As a further solution of the present invention, the placement component includes a placement frame connected to the outer end of the first rotating rod, the top of the placement frame is symmetrical and hinged with a second movable cover plate, a plurality of through grooves are distributed on the placement frame and the second movable cover plate, and the two second movable cover plates are provided with L-shaped strips at one end close to each other, and the two L-shaped strips are movably connected by a T-shaped frame.

[0009] As a further scheme of the present invention, the flipping assembly includes a fixed bevel gear ring fixedly set on the fixed support plate, a bevel gear meshing with the fixed bevel gear ring is connected to one end of the first rotating rod close to the threaded sleeve, a plurality of connecting holes corresponding to the guide grooves are circumferentially distributed on the bottom of the connecting sleeve, a plurality of positioning holes corresponding to the connecting holes are circumferentially distributed on the fixed support plate, a positioning column movably connected to the connecting hole is slidingly provided in the positioning hole, a second spring is connected between the positioning hole and the positioning column, a connecting column movably connected to the connecting hole is provided at the bottom of the lifting slide seat, an inner ratchet is provided at the bottom of the inner side wall of the connecting sleeve, a plurality of ratchet pawls movably abutting against the inner ratchet are rotatably provided on the fixed support plate, and a first spring is connected between the ratchet pawl and the fixed support plate.

[0010] As a further scheme of the present invention, it also includes a water circulation component, which includes a water pump arranged on the outer wall of the treatment box, the input end of the water pump is connected to the bottom of the treatment box through a water suction pipe, one end of the water suction pipe located inside the treatment box is connected to a water suction hood, the output end of the water pump is respectively connected to water outlet frames rotatably arranged at both ends of the inner side of the treatment box through a water guide pipe, a water equalization network is provided on the side where the water outlet frames are close to each other, brackets are symmetrically provided on the inner wall of the treatment box, movable plates respectively hinged to the corresponding ends of the two water outlet frames are slidably provided on the brackets, a straight groove plate is provided in the middle of the movable plate, a second rotating rod is rotatably provided in the water suction hood, a plurality of rotating blades are circumferentially distributed on the second rotating rod located inside the water suction hood, one end of the second rotating rod passes through the water suction hood and is connected to a turntable movably arranged in the treatment box, and a sliding column slidably matched with the straight groove plate is provided on the outer edge of the turntable.

[0011] As a further solution of the present invention, the number of the first movable cover plates is consistent with the number of the placement frames, and at least six placement frames are provided.

[0012] As a further solution of the present invention, the number of the positioning holes and the number of the connecting holes are consistent and are both set to 6.

[0013] As a further solution of the present invention, the size of the positioning column is consistent with the size of the connecting column, and the outer diameter of the connecting column is consistent with the inner diameter of the connecting hole.

[0014] As a further solution of the present invention, a distance is provided between the water outlet frame and the inner wall of the treatment box.

[0015] As a further solution of the present invention, the water conduit is a three-way hose.

[0016] In summary, compared with the prior art, the embodiments of the present invention have the following beneficial effects: 1. In the present invention, the water inside the treatment box can be heated and monitored by the cooperation of the electric heater and the temperature sensor. The water temperature inside the treatment box can be controlled within a suitable range by adjusting the controller. In actual operation, the water temperature can be maintained at 60°C. The asphalt concrete specimen can be lifted and lowered by the cooperation of the movable component and the placement component, so that the asphalt concrete specimen is moved below the water surface inside the treatment box, which is convenient for the immersion treatment of the asphalt concrete specimen. 2. In the present invention, the lifting slide drives the placement frame to revolve around the screw rod by driving the first rotating rod to rotate synchronously. At the same time, the first rotating rod drives the placement frame to rotate around the first rotating rod by meshing the bevel gear with the fixed bevel gear ring. Under the dual effects of rotation and revolution, each surface of the asphalt concrete specimen in the placement frame will be in full contact with the water inside the treatment box, accelerating the water stability performance test of the asphalt concrete specimen, avoiding the problem of insufficient contact surface caused by directly placing the asphalt concrete specimen at the bottom of the treatment box, and being closer to the situation of long-term water accumulation or cracking and water immersion on the road surface, meeting the needs of actual use, and helping to accurately evaluate the water stability of the material. It can predict the degree of water damage in the early stage of the project, and facilitate the subsequent safe construction of the project; 3. In the present invention, during the left and right reciprocating movement of the movable plate, the direction of the water flow sprayed from the two water outlet frames can be changed in real time, so that the surface of the asphalt concrete specimen far away from the outer wall of the connecting sleeve is in full contact with water; through the relative water flow direction, a vortex can be formed at the center of the treatment box, so that the surface of the asphalt concrete specimen close to the outer wall of the connecting sleeve is in full contact with water; by flushing the surface of the asphalt concrete specimen with multi-directional water flow, the durability of the material can be more strictly evaluated, which is helpful to improve the quality control of the project.

[0017] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a stereoscopic diagram of the asphalt concrete pressure water stability test device in the embodiment of the invention.

[0019] Figure 2 It is a rear view of the asphalt concrete pressure water stability test device in the embodiment of the invention.

[0020] Figure 3 It is a cross-sectional view of the asphalt concrete pressure water stability test device in the embodiment of the invention.

[0021] Figure 4 It is a cross-sectional view of a movable component in an embodiment of the invention.

[0022] Figure 5 for Figure 4 A partial enlarged view of point A in the middle.

[0023] Figure 6 It is a cross-sectional view of a flip assembly in an embodiment of the invention.

[0024] Figure 7 It is a schematic diagram of the structure of placing components in an embodiment of the invention.

[0025] Figure 8 It is a schematic diagram of the structure of the water circulation component in the embodiment of the invention.

[0026] Fig. 9 It is a schematic diagram of the structure of the turntable in the embodiment of the invention.

[0027] Figure numerals: 1, treatment box; 101, top plate; 102, first movable cover plate; 103, controller; 104, water inlet pipe; 105, drain pipe; 2, movable assembly; 201, motor; 202, screw; 203, connecting sleeve; 204, guide groove; 205, fixed support plate; 206, threaded kit; 207, cross plate; 208, lifting slide; 209, first rotating rod; 3, flip assembly; 301, fixed bevel gear ring; 302, bevel gear; 303, connecting column; 304, positioning hole; 305, connecting hole; 306, positioning column; 307, inner ratchet; 308, ratchet Claw; 309, first spring; 310, second spring; 4, placement component; 401, placement frame; 402, through groove; 403, second movable cover; 404, L-shaped strip; 405, T-shaped frame; 5, water circulation component; 501, water pump; 502, water suction pipe; 503, water guide pipe; 504, water suction cover; 505, water outlet frame; 506, water distribution network; 507, moving plate; 508, bracket; 509, straight groove plate; 510, sliding column; 511, turntable; 512, second rotating rod; 513, rotating blade; 6, asphalt concrete specimen; 7, electric heater; 8, temperature sensor. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0030] In one embodiment of the present invention, see Figure 1-Figure 3 , an asphalt concrete pressure water stability test device, comprising a treatment box 1, the upper and lower parts of the side walls of the treatment box 1 are respectively connected with a water inlet pipe 104 and a drain pipe 105, a top plate 101 is installed on the treatment box 1, and a plurality of hinged first movable cover plates 102 are circumferentially distributed on the top of the top plate 101, a movable component 2 is arranged between the top plate 101 and the bottom of the treatment box 1, a plurality of placement components 4 for placing asphalt concrete specimens 6 are circumferentially connected to the movable component 2, a flip component 3 for driving the placement component 4 to rotate is arranged on the movable component 2, a water circulation component 5 is arranged on the treatment box 1, an electric heater 7 is arranged at the bottom of the treatment box 1, a temperature sensor 8 is arranged on the inner wall of the treatment box 1, and a controller 103 electrically connected to the electrical equipment in the device is arranged on the top plate 101.

[0031] In this embodiment, the water inside the treatment box 1 can be heated and monitored by the cooperation of the electric heater 7 and the temperature sensor 8. The water temperature inside the treatment box 1 can be controlled within a suitable range by adjusting the controller 103. In actual operation, the water temperature can be maintained at 60°C. The asphalt concrete specimen 6 can be stably placed by placing the component 4 to prevent the asphalt concrete specimen 6 from falling during the flipping process. The asphalt concrete specimen 6 can be lifted and lowered by the cooperation of the movable component 2 and the placing component 4 to facilitate the placement and removal of the asphalt concrete specimen 6. , the cooperation of the flip component 3 and the placement component 4 can realize the revolution and rotation of the asphalt concrete specimen 6, which is convenient for the surface of the asphalt concrete specimen 6 to be fully in contact with water. Through the water circulation component 5, the water inside the treatment box 1 can be circulated and treated. At the same time, the automatic reciprocating swing of the flow direction of the water in the treatment box 1 can be realized, and the swing frequency changes synchronously with the water circulation speed, which is convenient for the water to be fully in contact with the asphalt concrete specimen 6, and can ensure that the asphalt concrete specimen 6 is in a saturated state. It has the effects of water temperature control, stable placement, flexible flipping, full and sufficient contact, high evaluation accuracy, reliable structure and simple and practical use; Among them, the water inlet pipe 104 is provided with a water inlet valve. Through the cooperation of the water inlet pipe 104 and the water inlet valve, sufficient water can be injected into the treatment box 1. The drain pipe 105 is provided with a drain valve. Through the cooperation of the drain pipe 105 and the drain valve, the water in the treatment box 1 can be discharged.

[0032] In one embodiment of the present invention, see Figure 1-Figure 7 The movable component 2 includes a fixed support plate 205 fixedly arranged inside the processing box 1, and a screw 202 is rotatably connected to the fixed support plate 205. The top end of the screw 202 is connected to a motor 201 installed on the top plate 101, and a threaded sleeve 206 is threadedly sleeved on the screw 202. A plurality of transverse plates 207 are circumferentially distributed on the outer side of the threaded sleeve 206. A connecting sleeve 203 is rotatably provided between the fixed support plate 205 and the top plate 101, and a plurality of guide grooves 204 are circumferentially distributed on the side wall of the connecting sleeve 203. A lifting slide 208 that is clamped with the corresponding transverse plate 207 is slidably provided in the guide groove 204, and a first rotating rod 209 is rotatably provided on the lifting slide 208, and the inner end of the first rotating rod 209 is rotatably matched with the threaded sleeve 206.

[0033] The placement component 4 includes a placement frame 401 connected to the outer end of the first rotating rod 209, the top of the placement frame 401 is symmetrical and hinged with a second movable cover plate 403, a plurality of through grooves 402 are distributed on the placement frame 401 and the second movable cover plate 403, and the ends of the two second movable cover plates 403 close to each other are each provided with an L-shaped bar 404, and the two L-shaped bars 404 are movably connected by a T-shaped frame 405.

[0034] In this embodiment, in the initial state, the threaded sleeve 206, the horizontal plate 207, and the lifting slide 208 are at the highest point. At this time, the placement component 4 is at the highest point, and the position of the connecting sleeve 203 is fixed. The staff opens the first movable cover plate 102, pushes the T-shaped frame 405 to one side, releases the clamping between the two L-shaped strips 404, flips the second movable cover plate 403 outward, and opens it, so that the asphalt concrete specimen 6 can be placed in the placement component 4 or the asphalt concrete specimen 6 in the placement component 4 can be taken out; When the asphalt concrete specimen 6 placed in the placement component 4 needs to be immersed, the motor 201 drives the screw 202 to rotate clockwise, and the screw 202 drives the threaded sleeve 206 and the lifting slide 208 to move downward by means of threaded connection with the threaded sleeve 206, sliding cooperation between the lifting slide 208 and the guide groove 204, and clamping connection between the cross plate 207 and the lifting slide 208. The lifting slide 208 drives the placement frame 401 to move downward synchronously by means of rotational cooperation with the first rotating rod 209, and the placement frame 401 drives the asphalt concrete specimen 6 to move downward synchronously by means of cooperation with the symmetrically arranged second movable cover plate 403, so that the asphalt concrete specimen 6 moves to below the water surface inside the treatment box 1, which is convenient for the immersion treatment of the asphalt concrete specimen 6; When it is necessary to take out the asphalt concrete specimen 6 in a saturated state for testing, the motor 201 drives the screw 202 to rotate counterclockwise, and the screw 202 drives the threaded sleeve 206 and the lifting slide 208 to move upward by means of threaded connection with the threaded sleeve 206, sliding cooperation between the lifting slide 208 and the guide groove 204, and clamping connection between the cross plate 207 and the lifting slide 208. The lifting slide 208 drives the placement frame 401 to move upward synchronously by means of rotational cooperation with the first rotating rod 209, and the placement frame 401 drives the asphalt concrete specimen 6 to move upward synchronously by means of cooperation with the symmetrically arranged second movable cover plate 403; Open the corresponding first movable cover plate 102 and the second movable cover plate 403 as required, take out the asphalt concrete specimen 6 in the corresponding placement frame 401, and perform a corresponding stability test on the asphalt concrete specimen 6 in a saturated state to obtain the measured stability (MS1) of the test group. Perform a stability test on the asphalt concrete specimen 6 of the control group to obtain the measured stability (MS0) of the control group, that is, the residual stability of the asphalt concrete specimen 6 is MS1 / MS0*100%, which can be used to evaluate the degree of water damage; The number of the first movable cover plates 102 is consistent with the number of the placement frames 401 , and at least six placement frames 401 are provided. By measuring the residual stability data of multiple groups of asphalt concrete specimens 6 , the accuracy of assessing the degree of water damage is improved and the test error is reduced.

[0035] In one embodiment of the present invention, see Figure 1-Figure 7The flip assembly 3 includes a fixed bevel gear ring 301 fixedly arranged on the fixed support plate 205, and the first rotating rod 209 is connected to a bevel gear 302 meshing with the fixed bevel gear ring 301 at one end close to the threaded sleeve 206. The bottom of the connecting sleeve 203 is circumferentially distributed with a plurality of connecting holes 305 corresponding to the guide grooves 204, and the fixed support plate 205 is circumferentially distributed with a plurality of positioning holes 304 corresponding to the connecting holes 305, and the positioning holes 304 are slidably provided with a The connecting hole 305 is movably connected to the positioning column 306, and a second spring 310 is connected between the positioning hole 304 and the positioning column 306. A connecting column 303 movably connected to the connecting hole 305 is provided at the bottom of the lifting slide 208. An inner ratchet 307 is provided at the bottom of the inner wall of the connecting sleeve 203. A plurality of ratchets 308 movably abutting against the inner ratchet 307 are rotatably provided on the fixed support plate 205, and a first spring 309 is connected between the ratchet 308 and the fixed support plate 205.

[0036] In this embodiment, in the initial state, the positioning column 306 is connected to the connecting hole 305, the positioning hole 304 is at its original length, and the lifting slide 208 is at the highest point. At this time, the connecting column 303 is away from the connecting hole 305, and the position of the connecting sleeve 203 is fixed and cannot be rotated; When the motor 201 drives the screw rod 202 to rotate clockwise, the screw rod 202 drives the threaded sleeve 206 and the lifting slide 208 to move downward by means of threaded connection with the threaded sleeve 206, sliding cooperation between the lifting slide 208 and the guide groove 204, and the clamping connection between the cross plate 207 and the lifting slide 208, and the lifting slide 208 drives the connecting column 303 to move downward synchronously. When the connecting column 303 moves downward to correspond to the connecting hole 305 and continues to move downward, the connecting column 303 will push the positioning column 306 into the positioning hole 304, and the positioning column 306 is compressed and moves downward into the positioning hole 304, releasing the positioning of the connecting sleeve 203. At the same time, the second spring 310 is stressed and contracts, and the connecting column 303 is connected to the connecting hole 305, so as to realize the synchronous rotation of the connecting sleeve 203 and the threaded sleeve 206. Since the connecting sleeve 203 is in an active state, that is, the connecting sleeve 203 and the fixed support plate 205 are in rotational cooperation, when the motor 201 continues to drive the screw rod 202 to rotate clockwise, the screw rod 202 drives the threaded sleeve 206 and the lifting slide 208 to rotate synchronously by means of threaded connection with the threaded sleeve 206, sliding cooperation between the lifting slide 208 and the guide groove 204, the clamping connection between the cross plate 207 and the lifting slide 208, and the rotational cooperation between the connecting sleeve 203 and the fixed support plate 205. The lifting slide 208 drives the placement frame 401 to revolve around the screw rod 202 by driving the first rotating rod 209 to rotate synchronously. At the same time, the first rotating rod 209 drives the first rotating rod 209 to rotate synchronously. The meshing of the wheel 302 and the fixed bevel gear ring 301 drives the placement frame 401 to rotate around the first rotating rod 209. Under the dual effects of rotation and revolution, each surface of the asphalt concrete specimen 6 in the placement frame 401 will be in full contact with the water inside the treatment box 1, accelerating the water stability performance test of the asphalt concrete specimen 6, avoiding the problem of insufficient contact surface caused by the asphalt concrete specimen 6 being directly placed on the bottom of the treatment box 1, and being closer to the situation of long-term water accumulation on the road surface or cracking and soaking in the road surface, meeting the needs of actual use, and helping to accurately evaluate the water stability of the material, and can predict the degree of water damage in the early stage of the project, which is convenient for subsequent engineering construction; During the clockwise rotation of the connecting sleeve 203, the connecting sleeve 203 drives the inner ratchet 307 to rotate synchronously, and the inner ratchet 307 realizes the unidirectional clockwise rotation of the inner ratchet 307 by movably contacting with the pawl 308 and connecting the first spring 309 with the pawl 308; When it is necessary to take out the saturated asphalt concrete specimen 6, the motor 201 drives the screw 202 to rotate counterclockwise. Due to the cooperation between the inner ratchet 307 and the pawl 308, the connecting sleeve 203 cannot rotate counterclockwise, that is, the connecting sleeve 203 is in a corresponding fixed state. The screw 202 drives the threaded sleeve 206 and the lifting slide 208 to move upward by means of threaded connection with the threaded sleeve 206, sliding cooperation between the lifting slide 208 and the guide groove 204, and the clamping connection between the cross plate 207 and the lifting slide 208. The lifting slide 208 releases the connection between the connecting column 303 and the connecting hole 305 by driving the connecting column 303 to move upward synchronously. Since the second spring 310 is in a compressed state, during the upward movement of the connecting column 303, the second spring 310 is The positioning column 306 is pushed upward in an elongated manner, so that the positioning column 306 is reconnected with the connecting hole 305, and the connecting sleeve 203 is stably positioned, that is, the connecting sleeve 203 cannot rotate clockwise or counterclockwise. Then, the screw rod 202 drives the threaded sleeve 206 and the lifting slide 208 to move upward by means of threaded connection with the threaded sleeve 206, sliding cooperation between the lifting slide 208 and the guide groove 204, and clamping connection between the cross plate 207 and the lifting slide 208. The lifting slide 208 drives the placement frame 401 to move upward synchronously by means of rotation cooperation with the first rotating rod 209. The placement frame 401 drives the asphalt concrete specimen 6 to move upward synchronously by means of cooperation with the symmetrically arranged second movable cover plate 403, so as to facilitate the removal and testing of the asphalt concrete specimen 6 in a saturated state. Among them, the number of the positioning holes 304 is consistent with the number of the connecting holes 305 and is both set to 6, the size of the positioning column 306 is consistent with the size of the connecting column 303, and the outer diameter of the connecting column 303 is consistent with the inner diameter of the connecting hole 305, which is convenient for reliable positioning of the connecting sleeve 203.

[0037] In one embodiment of the present invention, see Figure 1-Figure 9The water circulation component 5 includes a water pump 501 arranged on the outer wall of the treatment box 1, the input end of the water pump 501 is connected to the bottom of the treatment box 1 through a water suction pipe 502, and the end of the water suction pipe 502 located inside the treatment box 1 is connected to a water suction cover 504, and the output end of the water pump 501 is respectively connected to water outlet frames 505 rotatably arranged at both ends of the inner side of the treatment box 1 through a water guide pipe 503, and a water distribution network 506 is provided on the side of the water outlet frame 505 close to each other, and a bracket 508 is symmetrically provided on the inner wall of the treatment box 1. A movable plate 507 is slidably provided on 508 and is hinged to the corresponding ends of the two water outlet frames 505 respectively. A straight groove plate 509 is provided in the middle of the movable plate 507. A second rotating rod 512 is rotatably provided in the water absorption hood 504. A plurality of rotating blades 513 are circumferentially distributed on the second rotating rod 512 located inside the water absorption hood 504. One end of the second rotating rod 512 penetrates the water absorption hood 504 and is connected to a turntable 511 movably provided in the processing box 1. A sliding column 510 is provided on the outer edge of the turntable 511 and is slidably matched with the straight groove plate 509.

[0038] In this embodiment, in the initial state, the rotating disk 511 is located in the middle of the rotating disk 511, and the water pump 501 extracts the water at the bottom of the processing box 1 through the water suction pipe 502 and the water suction cover 504, and the extracted water is sprayed out from the water distribution net 506 in a manner that the water guide pipe 503 and the water outlet frame 505 are connected. The direction of the sprayed water flow is toward the center of the processing box 1, which can realize the flow of water in the processing box 1 in different directions; When the water at the bottom of the treatment box 1 enters the water suction pipe 502 through the water suction cover 504, the sucked water flow drives the second rotating rod 512 to rotate by contacting with the rotating blade 513, and the second rotating rod 512 drives the sliding column 510 to rotate synchronously by connecting with the rotating disk 511, and the sliding column 510 drives the moving plate 507 to reciprocate left and right by slidingly cooperating with the straight groove plate 509 and the moving plate 507 and the bracket 508; During the movement of the movable plate 507 to one side, one end of the movable plate 507 drives the water outlet frame 505 on the corresponding side to rotate in a direction close to the turntable 511 by being hinged to the water outlet frame 505 on one side and by rotating the water outlet frame 505 and the inner wall of the treatment box 1, and the other end of the movable plate 507 drives the water outlet frame 505 on the other side to rotate in a direction away from the turntable 511 by being hinged to the water outlet frame 505 on the other side and by rotating the water outlet frame 505 and the inner wall of the treatment box 1, so that the flow direction of the water sprayed through the two water outlet frames 505 is in an anti-parallel state. During the reciprocating movement of the movable plate 507 to the left and right, the flow direction of the water sprayed from the two water outlet frames 505 can be changed in real time, so that the surface of the asphalt concrete specimen 6 away from the outer wall of the connecting sleeve 203 is in full contact with the water. Through the relative water flow direction, a vortex can be formed at the center of the treatment box 1, so that the surface of the asphalt concrete specimen 6 close to the outer wall of the connecting sleeve 203 is in full contact with the water. By flushing the surface of the asphalt concrete specimen 6 with multi-directional water flow, the durability of the material can be evaluated more strictly, which helps to improve the quality control of the project; The water conduit 503 is a three-way hose, which is convenient for the rotation of the water outlet frame 505. A gap is provided between the water outlet frame 505 and the inner wall of the processing box 1 to ensure that there is swing space for the water outlet frame 505.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An asphalt concrete pressure water stability test device, comprising a treatment box, the upper and lower parts of the side walls of the treatment box are respectively connected to a water inlet pipe and a drain pipe, and a top plate is installed on the treatment box, characterized in that: A plurality of hinged first movable cover plates are distributed circumferentially on the top of the top plate, an electric heater is provided at the bottom of the processing box, a temperature sensor is provided on the inner wall of the processing box, and a controller electrically connected to the electrical equipment in the device is provided on the top plate; and further comprising: A movable assembly is disposed between the top plate and the bottom of the processing box; A placing component, wherein the movable component is circumferentially connected with a plurality of placing components, and the placing components are used to place the asphalt concrete specimen; And a flip component is arranged on the movable component, and the flip component is used for driving the placement component to rotate.

2. The asphalt concrete pressure water stability test device according to claim 1 is characterized in that: The movable component includes a fixed support plate fixedly arranged inside the processing box, the fixed support plate is rotatably connected to a screw rod, the top end of the screw rod is connected to a motor installed on the top plate, a threaded sleeve is threadedly sleeved on the screw rod, a plurality of transverse plates are circumferentially distributed on the outer side of the threaded sleeve, a connecting sleeve is rotatably provided between the fixed support plate and the top plate, a plurality of guide grooves are circumferentially distributed on the side wall of the connecting sleeve, a lifting slide seat is slidably provided in the guide groove and clamped with the corresponding transverse plate, a first rotating rod is rotatably provided on the lifting slide seat, and the inner end of the first rotating rod is rotatably matched with the threaded sleeve.

3. The asphalt concrete pressure water stability test device according to claim 2 is characterized in that: The placement component includes a placement frame connected to the outer end of the first rotating rod, the top of the placement frame is symmetrical and hinged with a second movable cover plate, a plurality of through grooves are distributed on the placement frame and the second movable cover plate, and the ends of the two second movable cover plates close to each other are each provided with an L-shaped strip, and the two L-shaped strips are movably connected by a T-shaped frame.

4. The asphalt concrete pressure water stability test device according to claim 2, characterized in that: The flip assembly includes a fixed bevel gear ring fixedly set on the fixed support plate, a bevel gear meshing with the fixed bevel gear ring is connected to one end of the first rotating rod close to the threaded sleeve, a plurality of connecting holes corresponding to the guide grooves are circumferentially distributed on the bottom of the connecting sleeve, a plurality of positioning holes corresponding to the connecting holes are circumferentially distributed on the fixed support plate, a positioning column movably connected to the connecting hole is slidably provided in the positioning hole, a second spring is connected between the positioning hole and the positioning column, a connecting column movably connected to the connecting hole is provided at the bottom of the lifting slide seat, an inner ratchet is provided at the bottom of the inner side wall of the connecting sleeve, a plurality of ratchet pawls movably abutting against the inner ratchet are rotatably provided on the fixed support plate, and a first spring is connected between the ratchet pawl and the fixed support plate.

5. The asphalt concrete pressure water stability test device according to claim 1, characterized in that: It also includes a water circulation component, which includes a water pump arranged on the outer wall of the treatment box, the input end of the water pump is connected to the bottom of the treatment box through a water suction pipe, one end of the water suction pipe located inside the treatment box is connected to a water suction hood, the output end of the water pump is respectively connected to water outlet frames rotatably arranged at both ends of the inner side of the treatment box through a water guide pipe, a water equalization network is provided on the side where the water outlet frames are close to each other, brackets are symmetrically provided on the inner wall of the treatment box, movable plates respectively hinged to corresponding ends of the two water outlet frames are slidably provided on the brackets, a straight groove plate is provided in the middle of the movable plate, a second rotating rod is rotatably provided in the water suction hood, a plurality of rotating blades are circumferentially distributed on the second rotating rod located inside the water suction hood, one end of the second rotating rod passes through the water suction hood and is connected to a turntable movably arranged in the treatment box, and a sliding column slidably matched with the straight groove plate is provided on the outer edge of the turntable.

6. The asphalt concrete pressure water stability test device according to claim 3, characterized in that: The number of the first movable cover plates is consistent with the number of the placement frames, and at least six placement frames are provided.

7. The asphalt concrete pressure water stability test device according to claim 4, characterized in that: The number of the positioning holes is consistent with the number of the connection holes and is both set to 6.

8. The asphalt concrete pressure water stability test device according to claim 4, characterized in that: The size of the positioning column is consistent with the size of the connecting column, and the outer diameter of the connecting column is consistent with the inner diameter of the connecting hole.

9. The asphalt concrete pressure water stability test device according to claim 5, characterized in that: A spacing is provided between the water outlet frame and the inner wall of the processing box.

10. The asphalt concrete pressure water stability test device according to claim 5, characterized in that: The water pipe is a three-way hose.

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