Asphalt and asphalt mixture all-weather aging acceleration simulation test device

Abstract

The invention provides an asphalt and asphalt mixture all-weather aging acceleration simulation test device, which belongs to the technical field of simulation test devices and comprises a test box, a sealing assembly, a vehicle body, a partition assembly and two ultraviolet lamps. The test box is provided with a test cavity, and one end of the test cavity is open. The sealing assembly is used for opening and closing the opening end of the test cavity. The vehicle body is located in the test cavity and provided with a vehicle plate used for bearing a sample. The partition assembly is located in the test cavity and arranged outside the vehicle plate and the sample on the vehicle plate in a sleeving mode so that the test cavity can be divided into two test chambers. And the two ultraviolet lamps are respectively positioned in the two test rooms and are fixedly connected with the test box. According to the all-weather aging acceleration simulation test device for the asphalt and the asphalt mixture, the problem that an existing all-weather aging acceleration simulation test device cannot provide two different environmental factors for the same sample at the same time for a contrast test can be solved.

Description

Technical Field

[0001] The invention belongs to the technical field of simulation test devices, and more specifically, relates to an all-weather accelerated aging simulation test device for asphalt and asphalt mixture. Background Art

[0002] Asphalt and asphalt mixtures are widely used in road construction. Their durability and service life are affected by weather conditions and need to be studied. The current research method is to place samples made of asphalt and asphalt mixtures in an all-weather accelerated aging simulation test device, which simulates environmental factors such as ultraviolet rays, rain, and wind. The existing all-weather accelerated aging simulation test device cannot provide two different environmental factors for the same sample at the same time for control testing, so the conclusion of the test may be inaccurate. Summary of the invention

[0003] The purpose of the present invention is to provide an all-weather accelerated aging simulation test device for asphalt and asphalt mixture, aiming to solve the problem that the existing aging test device cannot provide two different environmental factors for the same sample at the same time for control testing.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide an accelerated aging simulation test device for asphalt and asphalt mixtures around the clock, including a test box, a closing component, a vehicle body, a partition component and two ultraviolet lamps. The test box has a test chamber, and one end of the test chamber along the first horizontal direction is an open end. The closing component is used to open and close the open end of the test chamber. The vehicle body is located in the test chamber, and the vehicle body has a horizontally arranged vehicle plate, and the vehicle plate is used to support the sample. The partition component is located in the test chamber, and one end of the partition component along the first horizontal direction abuts against the side wall of the test box, and the other end abuts against the closing component. The partition component is sleeved on the vehicle plate and the sample on the vehicle plate to separate the test chamber into two test chambers. The two ultraviolet lamps are respectively located in the two test chambers and are both located above the samples, and the ultraviolet lamps are fixedly connected to the test box.

[0005] In a possible implementation, the partition assembly includes a fixing member. The fixing member is fixed on the top wall of the test chamber, and a first slide groove is provided on the bottom surface of the fixing member, and the first slide groove passes through both ends of the fixing member along the first horizontal direction. The bottom surface of the U-shaped member has a notch, and the U-shaped member is slidably mounted outside the sample through the notch, and the upper end of the U-shaped member is slidably inserted into the first slide groove.

[0006] In a possible implementation, the partition assembly further includes two columns. The two columns are symmetrically arranged on both sides of the sample along the first horizontal direction, and the surface of the column facing away from the sample is provided with a second slide groove, and the second slide groove passes through both ends of the column in the vertical direction. The column is embedded and fixed in the vehicle plate, and the top surface of the column is flush with the top surface of the vehicle plate, and the column penetrates the vehicle plate in the direction away from the sample. The U-shaped part has two sliding parts, and the notch is formed between the two sliding parts, and the two sliding parts are respectively slidably arranged in the two second slide grooves.

[0007] In a possible implementation, the partition assembly further includes a blocking piece and a fixed column. The blocking piece is located below the vehicle plate and between the two columns, and the blocking piece is fixedly connected to the vehicle plate and the two columns. The fixed column is arranged along the first horizontal direction and fixedly arranged on the bottom surface of the test cavity, and the fixed column is slidably fitted with the blocking piece and the bottom surfaces of the two columns.

[0008] In a possible implementation, the test box also has a water chamber, and the asphalt and asphalt mixture all-weather aging accelerated simulation test device also includes two coupling units, and the two coupling units correspond to the two test chambers one by one, and the coupling units include a spray head, a spray pipe, a water pump and a switch valve. The spray head is located in the corresponding test chamber. One end of the spray pipe is fixedly connected to the test box and communicated with the water chamber, and the other end is located in the corresponding test chamber and connected to the spray head. The middle part of the spray pipe penetrates the test box and is fixedly connected to the test box. The water pump is arranged on the spray pipe. The switch valve is arranged on the spray pipe and is located between the water pump and the spray head.

[0009] In a possible implementation, the water storage chamber is located below the test chamber, and a leakage hole for connecting the test chamber with the water storage chamber is provided on the bottom surface of each test chamber, and a filter net is fixed in the leakage hole.

[0010] In a possible implementation manner, the test cavity extends along the first horizontal direction to a side of an opening end of the test cavity facing outside the test cavity.

[0011] In a possible implementation, the asphalt and asphalt mixture all-weather aging accelerated simulation test device further includes a friction positioning unit, which is located below the vehicle plate. The friction positioning unit includes a fixed tube, a friction plate, two sliding shafts and a drive assembly. There are two fixed tubes, which are vertically arranged and fixedly connected to the vehicle plate. The friction plate is horizontally arranged and located below the fixed tubes. Two sliding shafts are respectively slidably inserted into the two fixed tubes, and the sliding shafts are fixedly arranged on the friction plate. The drive assembly is located between the vehicle plate and the friction plate, and the drive assembly is fixedly arranged on the vehicle plate. The drive assembly has a piston rod that can be extended and retracted in the vertical direction, and the piston rod of the drive assembly is fixedly connected to the friction plate.

[0012] In a possible implementation, the coupling unit further includes an air inlet pipe and an air outlet pipe. One end of the air inlet pipe is fixedly connected to the test box and communicated with the corresponding test chamber. One end of the air outlet pipe is fixedly connected to the test box and communicated with the corresponding test chamber. There are two friction positioning units, and the two friction positioning units are respectively located in two test chambers. When the friction plate moves downward, the friction plate can cover the water leakage hole on the bottom wall of the test chamber.

[0013] In a possible implementation, the closing assembly includes a closing plate, a first limiter, a second limiter, and a locking bolt. The closing plate is perpendicular to the first horizontal direction and is slidably disposed in one of the side walls of the test chamber along a second horizontal direction, and the second horizontal direction is perpendicular to the first horizontal direction. The first limiter is fixedly connected to the closing plate. The second limiter is fixedly connected to the test chamber and is located below the first limiter, and the second limiter is provided with a threaded hole arranged vertically with the axis. The screw of the locking bolt is disposed in the first limiter and is threadedly connected to the threaded hole.

[0014] In the embodiment of the present application, two ultraviolet lamps provide ultraviolet rays of different intensities respectively. In this way, the two parts of the sample on the vehicle panel located in the two test chambers can be irradiated with ultraviolet rays of different intensities respectively, so that a control test can be carried out, thereby avoiding the problem that the existing all-weather accelerated aging simulation test equipment cannot provide two different environmental factors for the same sample at the same time for a control test. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 A schematic diagram of the structure from a first angle of an accelerated simulation test device for all-weather aging of asphalt and asphalt mixture provided by an embodiment of the present invention; Figure 2 for Figure 1 Schematic diagram of the enlarged structure of the local A in FIG. Figure 3 A second angle structural schematic diagram of an all-weather aging accelerated simulation test device for asphalt and asphalt mixture provided by an embodiment of the present invention; Figure 4 A schematic diagram of the structure of an accelerated aging simulation test device for asphalt and asphalt mixture provided by an embodiment of the present invention after removing the sealing components; Figure 5 for Figure 4 A schematic diagram of the enlarged structure of the local B in FIG. Figure 6 A schematic cross-sectional view of an accelerated aging simulation test device for asphalt and asphalt mixture provided by an embodiment of the present invention with the sealing components removed; Figure 7 for Figure 6 Schematic diagram of the enlarged structure of the local C in FIG. Figure 8 A schematic diagram of the structure of a partition assembly in an accelerated simulation test device for all-weather aging of asphalt and asphalt mixtures provided by an embodiment of the present invention; Fig. 9 A schematic diagram of the structure of a test box in an all-weather accelerated aging simulation test device for asphalt and asphalt mixture provided by an embodiment of the present invention.

[0017] In the figure: 1. test box; 11. test cavity; 111. test room; 12. water chamber; 13. water leakage hole; 2. closing assembly; 21. closing plate; 22. first limit piece; 23. second limit piece; 24. locking bolt; 3. vehicle body; 31. vehicle plate; 4. partition assembly; 41. fixing piece; 411. first slide groove; 42. U-shaped piece; 421. notch; 422. sliding part; 43. column; 431. second slide groove; 44. blocking piece; 45. fixing column; 5. ultraviolet lamp; 61. sprinkler head; 62. sprinkler pipe; 63. water pump; 64. switch valve; 65. air inlet pipe; 66. air outlet pipe; 7. filter screen; 81. fixing pipe; 82. friction plate; 83. sliding shaft; 84. driving assembly; 9. sample. DETAILED DESCRIPTION

[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by 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 used to limit the present invention.

[0019] It should be further explained that the drawings and implementation modes of the present invention mainly describe the concept of the present invention. On the basis of this concept, the specific forms and settings of some connection relationships, positional relationships, power mechanisms, power supply systems, hydraulic systems and control systems may not be fully described. However, on the premise that those skilled in the art understand the concept of the present invention, those skilled in the art can implement the above-mentioned specific forms and settings in a well-known manner.

[0020] When an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element.

[0021] The directions or positional relationships indicated by terms such as “length”, “width”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention.

[0022] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, and "several" means one or more, unless otherwise clearly and specifically defined.

[0023] Please also read Figure 1 , Figure 4 , Figure 8 and Fig. 9Now, an accelerated simulation test device for all-weather aging of asphalt and asphalt mixture provided by the present invention is described. The accelerated simulation test device for all-weather aging of asphalt and asphalt mixture comprises a test box 1, a closing component 2, a vehicle body 3, a partition component 4 and two ultraviolet lamps 5. The test box 1 has a test chamber 11, and one end of the test chamber 11 along the first horizontal direction is an open end. The closing component 2 is used to open and close the open end of the test chamber 11. The vehicle body 3 is located in the test chamber 11, and the vehicle body 3 has a horizontally arranged vehicle plate 31, and the vehicle plate 31 is used to support the sample 9. The partition component 4 is located in the test chamber 11, and one end of the partition component 4 along the first horizontal direction abuts against the side wall of the test box 1, and the other end abuts against the closing component 2. The partition component 4 is sleeved on the vehicle plate 31 and the sample 9 on the vehicle plate 31 to separate the test chamber 11 into two test chambers 111. The two ultraviolet lamps 5 are respectively located in the two test chambers 111 and are both located above the sample 9, and the ultraviolet lamps 5 are fixedly connected to the test box 1.

[0024] The present invention provides an accelerated simulation test device for all-weather aging of asphalt and asphalt mixture. Compared with the prior art, the two ultraviolet lamps 5 respectively provide ultraviolet rays of different intensities. In this way, the two parts of the sample 9 on the vehicle plate 31 respectively located in the two test chambers 111 can be irradiated with ultraviolet rays of different intensities, so that a control test can be carried out, thereby avoiding the problem that the existing accelerated simulation test device for all-weather aging cannot provide two different environmental factors for the same sample 9 at the same time for a control test.

[0025] In some embodiments, the above-mentioned characteristic partition component 4 can be used as follows Figure 4 and Figure 8 See the structure shown. Figure 4 and Figure 8 , the partition assembly 4 includes a fixing member 41. The fixing member 41 is fixed on the top wall of the test cavity 11, and a first slide groove 411 is provided on the bottom surface of the fixing member 41, and the first slide groove 411 passes through both ends of the fixing member 41 along a first horizontal direction. The bottom surface of the U-shaped member 42 has a notch 421, and the U-shaped member 42 is slidably mounted on the outside of the sample 9 through the notch 421, and the upper end of the U-shaped member 42 is slidably inserted into the first slide groove 411. In this way, the space where the test cavity 11 is located above the vehicle plate 31 can be separated. When the closing assembly 2 opens the open end of the test cavity 11, the U-shaped member 42 can exit the test cavity 11 along with the vehicle body 3.

[0026] In some embodiments, the above-mentioned characteristic partition component 4 can be used as follows Figure 4 , Figure 5 and Figure 8 See the structure shown. Figure 4 , Figure 5 and Figure 8The partition assembly 4 further includes two columns 43. The two columns 43 are symmetrically arranged on both sides of the sample 9 along the first horizontal direction. The surface of the column 43 facing away from the sample 9 is provided with a second slide groove 431. The second slide groove 431 passes through both ends of the column 43 along the vertical direction. The column 43 is embedded and fixed in the vehicle plate 31. The top surface of the column 43 is flush with the top surface of the vehicle plate 31. The column 43 penetrates the vehicle plate 31 in the direction away from the sample 9. Among them, the U-shaped member 42 has two sliding parts 422, and a notch 421 is formed between the two sliding parts 422. The two sliding parts 422 are respectively slidably arranged in the two second slide grooves 431. When the closing component 2 opens the opening end of the test cavity 11 and the vehicle body 3 is outside the test cavity 11, the sample 9 is placed on the vehicle plate 31, and then the U-shaped member 42 is sleeved on the sample 9 and the two sliding parts 422 are respectively slid into the two sliding parts 422, and then the vehicle body 3 enters the test cavity 11, and the U-shaped member 42 slides into the first slide groove 411. The cooperation between the first slide groove 411 and the U-shaped member 42 and the limiting of the sliding part 422 by the second slide groove 431 can make the vehicle body 3 enter the test cavity 11 along a preset track. In this embodiment, since the U-shaped member 42 can move in the vertical direction, samples 9 of different thicknesses can be placed on the vehicle plate 31.

[0027] In some embodiments, the above-mentioned characteristic partition component 4 can be used as follows Figure 4 , Figure 5 and Figure 8 See the structure shown. Figure 4 , Figure 5 and Figure 8 , the partition assembly 4 also includes a blocking member 44 and a fixed column 45. The blocking member 44 is located below the vehicle plate 31 and between the two columns 43, and the blocking member 44 is fixedly connected to the vehicle plate 31 and the two columns 43. The fixed column 45 is arranged along the first horizontal direction and fixedly arranged on the bottom surface of the test chamber 11, and the fixed column 45 is slidably fitted with the bottom surface of the blocking member 44 and the two columns 43. The structure composed of the blocking member 44, the two columns 43 and the U-shaped member 42 is sleeved outside the vehicle plate 31 and the sample 9 on the vehicle plate 31. When the vehicle moves outward, the contact area between the structure composed of the blocking member 44 and the two columns 43 and the fixed column 45 gradually decreases, so that the resistance of the vehicle body 3 when moving outward gradually decreases.

[0028] In some embodiments, see Figure 3 , Figure 4 and Figure 6The test box 1 also has a water chamber 12. The asphalt and asphalt mixture all-weather aging accelerated simulation test device also includes two coupling units, and the two coupling units correspond to the two test chambers 111 one by one. The coupling units include a spray head 61, a spray pipe 62, a pump 63 and a switch valve 64. The spray head 61 is located in the corresponding test chamber 111. One end of the spray pipe 62 is fixedly connected to the test box 1 and communicates with the water chamber 12, and the other end is located in the corresponding test chamber 111 and connected to the spray head 61. The middle part of the spray pipe 62 penetrates the test box 1 and is fixedly connected to the test box 1. The pump 63 is arranged on the spray pipe 62. The switch valve 64 is arranged on the spray pipe 62 and is located between the pump 63 and the spray head 61. The pump 63 extracts water in the water chamber 12 through the spray pipe 62 and sprays it on the sample 9 through the spray head 61. The flow rate of water in the spray pipe 62 can be controlled by the switch valve 64, so as to simulate precipitation of different intensities in the test chamber 111. In this way, precipitation of different intensities can be simulated in the two test chambers 111 at the same time, thereby further avoiding the problem that the existing aging test device cannot provide two different environmental factors for the same sample 9 to perform a control test at the same time. In this embodiment, the spray head 61 is located above the sample 9.

[0029] In some embodiments, see Figure 6 , Figure 7 and Fig. 9 The water chamber 12 is located below the test chamber 11. A water leakage hole 13 is provided on the bottom surface of each test chamber 111 for connecting the test chamber 111 with the water chamber 12. A filter screen 7 is fixed in the water leakage hole 13. The water sprayed by the spray head 61 can be filtered through the filter screen 7 of the water leakage hole 13 and then flow into the water chamber 12, so as to be recycled.

[0030] In some embodiments, see Figure 6 The test chamber 11 extends along the first horizontal direction to the side where the opening end of the test chamber 11 faces outside the test chamber 11. In this way, the vehicle body 3 moves on the top wall of the water chamber 12 to enter and exit the test chamber 11.

[0031] In some embodiments, see Figure 6 and Figure 7An accelerated aging simulation test device for asphalt and asphalt mixtures also includes a friction positioning unit, which is located below the vehicle plate 31. The friction positioning unit includes a fixed tube 81, a friction plate 82, two sliding shafts 83 and a driving assembly 84. There are two fixed tubes 81, which are vertically arranged and fixedly connected to the vehicle plate 31. The friction plate 82 is horizontally arranged and located below the fixed tube 81. The two sliding shafts 83 are respectively slidably penetrated in the two fixed tubes 81, and the sliding shafts 83 are fixedly arranged on the friction plate 82. The driving assembly 84 is located between the vehicle plate 31 and the friction plate 82, and the driving assembly 84 is fixedly arranged on the vehicle plate 31. The driving assembly 84 has a piston rod that can be telescopic in the vertical direction, and the piston rod of the driving assembly 84 is fixedly connected to the friction plate 82. The friction plate 82 can be lifted and lowered by the sliding cooperation between the sliding shaft 83 and the fixed tube 81, and the piston rod of the driving assembly 84 drives the friction plate 82 to lift and lower by telescoping. When the vehicle body 3 moves, there is a gap between the friction plate 82 and the top wall of the water chamber 12. When the vehicle body 3 reaches a preset position in the test chamber 11 or is located outside the test chamber 11 to place the sample 9, the piston rod of the drive assembly 84 drives the friction plate 82 to descend until the friction plate 82 presses against the top wall of the water chamber 12, and the static friction between the friction plate 82 and the top wall of the water chamber 12 increases the resistance to the movement of the vehicle body 3, so that the vehicle body 3 can be kept as stable as possible. In this embodiment, the drive assembly 84 can be an electric push rod, a hydraulic rod or a cylinder, which can be selected according to the actual situation on site.

[0032] In some embodiments, the characteristic coupling unit can be used as follows Figure 3 See the structure shown. Figure 3 The coupling unit also includes an air inlet pipe 65 and an air outlet pipe 66. One end of the air inlet pipe 65 is fixedly connected to the test box 1 and communicated with the corresponding test chamber 111. One end of the air outlet pipe 66 is fixedly connected to the test box 1 and communicated with the corresponding test chamber 111. There are two friction positioning units, and the two friction positioning units are respectively located in the two test chambers 111. When the friction plate 82 moves downward, the friction plate 82 can cover the water leakage hole 13 on the bottom wall of the test chamber 111, thereby preventing the two test chambers 111 from being ventilated. The air inlet pipe 65 is used to introduce airflow into the corresponding test chamber 111, and the airflow flows out of the corresponding test chamber 111 through the air outlet pipe 66, thereby simulating wind in the test chamber 111. In this way, airflows of different intensities can be introduced into the two test chambers 111, thereby simulating winds of different intensities, further avoiding the problem that the existing aging test device cannot provide two different environmental factors for the same sample 9 at the same time for control tests.

[0033] In some embodiments, the above-mentioned characteristic sealing component 2 can be used as follows Figure 1 and Figure 2 See the structure shown. Figure 1 and Figure 2 The closing assembly 2 includes a closing plate 21, a first stopper 22, a second stopper 23 and a locking bolt 24. The closing plate 21 is perpendicular to the first horizontal direction and is slidably penetrated in one of the side walls of the test chamber 11 along the second horizontal direction, and the second horizontal direction is perpendicular to the first horizontal direction. The first stopper 22 is fixedly connected to the closing plate 21. The second stopper 23 is fixedly connected to the test box 1 and is located below the first stopper 22. The second stopper 23 is provided with a threaded hole vertically arranged with the axis center line. The screw of the locking bolt 24 is penetrated in the first stopper 22 and is threadedly connected in the threaded hole, thereby limiting the sliding of the closing plate 21, so that the closing plate 21 maintains the state of the open end of the test chamber 11. When the screw of the locking bolt 24 is disconnected from the threaded connection with the threaded hole, the closing plate 21 is driven to slide out of the side wall of the test box 1 into which it is penetrated, and the open end of the test box 1 can be opened. In this embodiment, the closing plate 21 is used to abut against the partition assembly 4.

[0034] Furthermore, both test chambers 111 may be provided with electrically connected heating devices and temperature sensors, so that the temperatures in the two test chambers 111 can be adjusted, thereby reducing the impact of environmental factors on the samples.

[0035] 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 accelerated aging simulation test device for asphalt and asphalt mixtures, characterized in that: include: A test box having a test cavity, wherein one end of the test cavity along a first horizontal direction is an open end; A closing assembly, used to open and close the open end of the test chamber; A vehicle body is located in the test chamber, and the vehicle body has a horizontally arranged vehicle plate, and the vehicle plate is used to support the sample; a partition assembly located in the test chamber, wherein one end of the partition assembly along a first horizontal direction abuts against a side wall of the test box, and the other end abuts against the closing assembly, and the partition assembly is sleeved outside the vehicle plate and the sample on the vehicle plate to separate the test chamber into two test chambers; and Two ultraviolet lamps are respectively located in the two test chambers and above the samples, and the ultraviolet lamps are fixedly connected to the test chambers.

2. The asphalt and asphalt mixture all-weather aging accelerated simulation test device according to claim 1, characterized in that: The partition assembly comprises: A fixing member is fixed on the top wall of the test chamber, and a first slide groove is provided on the bottom surface of the fixing member, and the first slide groove runs through two ends of the fixing member along the first horizontal direction; The U-shaped part has a notch on its bottom surface, and the U-shaped part is slidably mounted outside the sample through the notch, and the upper end of the U-shaped part is slidably inserted into the first sliding groove.

3. The asphalt and asphalt mixture all-weather aging accelerated simulation test device as claimed in claim 2, characterized in that: The partition assembly also includes: Two upright posts are symmetrically arranged on both sides of the sample along the first horizontal direction, a second slide groove is arranged on the surface of the upright post facing away from the sample, the second slide groove passes through both ends of the upright post along the vertical direction, the upright post is embedded and fixed in the vehicle plate, the top surface of the upright post is flush with the top surface of the vehicle plate, and the upright post penetrates the vehicle plate in the direction away from the sample; Wherein, the U-shaped member has two sliding parts, the notch is formed between the two sliding parts, and the two sliding parts are respectively slidably inserted into the two second sliding grooves.

4. The asphalt and asphalt mixture all-weather aging accelerated simulation test device as claimed in claim 3, characterized in that: The partition assembly also includes: A blocking member, located below the vehicle plate and between the two upright posts, the blocking member being fixedly connected to the vehicle plate and the two upright posts; A fixed column is arranged along the first horizontal direction and fixed on the bottom surface of the test cavity, and the fixed column is slidably fitted with the blocking member and the bottom surfaces of the two columns.

5. The asphalt and asphalt mixture all-weather aging accelerated simulation test device according to claim 1, characterized in that: The test box also has a water chamber. The asphalt and asphalt mixture all-weather aging accelerated simulation test device also includes two coupling units, and the two coupling units correspond to the two test chambers one by one. The coupling units include: A shower head is located in the corresponding test chamber; A spray pipe, one end of which is fixedly connected to the test box and communicated with the water storage cavity, and the other end of which is located in the corresponding test chamber and connected to the spray head, and the middle part of the spray pipe penetrates the test box and is fixedly connected to the test box; A water pump, arranged on the spray pipe; The switch valve is arranged on the spray pipe and located between the water pump and the spray head.

6. The asphalt and asphalt mixture all-weather aging accelerated simulation test device as claimed in claim 5, characterized in that: The water storage cavity is located below the test cavity. A water leakage hole for connecting the test cavity with the water storage cavity is provided on the bottom surface of each test cavity. A filter screen is fixed in the water leakage hole.

7. The asphalt and asphalt mixture all-weather aging accelerated simulation test device as claimed in claim 6, characterized in that: The test cavity extends along the first horizontal direction to a side of an opening end of the test cavity facing outside the test cavity.

8. The asphalt and asphalt mixture all-weather aging accelerated simulation test device as claimed in claim 7, characterized in that: It also includes a friction positioning unit, which is located below the vehicle plate and includes: Two fixing pipes are vertically arranged and fixedly connected to the vehicle plate; A friction plate, arranged horizontally and located below the fixed pipe; Two sliding shafts are respectively slidably arranged in the two fixed tubes, and the sliding shafts are fixed on the friction plate; The driving assembly is located between the vehicle plate and the friction plate. The driving assembly is fixed on the vehicle plate. The driving assembly has a piston rod that can be extended and retracted in a vertical direction. The piston rod of the driving assembly is fixedly connected to the friction plate.

9. The asphalt and asphalt mixture all-weather aging accelerated simulation test device as claimed in claim 8, characterized in that: The coupling unit further includes: An air inlet pipe, one end of which is fixedly connected to the test box and communicated with the corresponding test chamber; An air outlet pipe, one end of which is fixedly connected to the test box and communicated with the corresponding test chamber; There are two friction positioning units, which are respectively located in two test chambers. When the friction plate moves downward, the friction plate can cover the water leakage holes on the bottom wall of the test chamber.

10. The asphalt and asphalt mixture all-weather aging accelerated simulation test device according to claim 1, characterized in that: The closure assembly comprises: A closing plate, which is perpendicular to the first horizontal direction and is slidably disposed in one of the side walls of the test chamber along a second horizontal direction, wherein the second horizontal direction is perpendicular to the first horizontal direction; A first limiting member, fixedly connected to the closing plate; A second limiting member, fixedly connected to the test box and located below the first limiting member, the second limiting member being provided with a threaded hole whose axis is vertically arranged; A locking bolt, a screw rod is inserted into the first limiting member and is threadedly connected to the threaded hole.

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