An all-weather accelerated aging simulation test device for asphalt and asphalt mixture

Abstract

The present invention provides an accelerated simulation test device for all-weather aging of asphalt and asphalt mixture, which belongs to the technical field of simulation test devices and includes a test box, a closing component, a vehicle body, a partition component and two ultraviolet lamps. The test box has a test chamber, one end of which 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 vehicle plate, which is used to support the sample. The partition component is located in the test chamber, and the partition component is mounted 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 the ultraviolet lamps are fixedly connected to the test box. The present invention provides an accelerated simulation test device for all-weather aging of asphalt and asphalt mixture, which can avoid the problem that the existing accelerated simulation test device for all-weather aging cannot provide two different environmental factors for the same sample at the same time for control testing.

Description

Technical Field

[0001] The present invention belongs to the technical field of simulation test devices, and more specifically, relates to an accelerated simulation test device for all-weather aging of 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, necessitating further research. Current research involves placing samples of asphalt and asphalt mixtures in an all-weather accelerated aging simulation device, which simulates environmental factors such as ultraviolet light, rain, and wind. Existing all-weather accelerated aging simulation devices cannot simultaneously subject the same sample to two different environmental conditions for controlled testing, resulting in potentially inaccurate test conclusions. 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 existing aging test devices cannot simultaneously provide two different environmental factors for the same sample 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 simulation test device for all-weather aging of asphalt and asphalt mixture, 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 mounted 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 sample, and the ultraviolet lamps are fixedly connected to the test box.

[0005] In one possible implementation, the partition assembly includes a fixing member. The fixing member is fixed to the top wall of the test chamber, and a first slide groove is provided on the bottom surface of the fixing member. The first slide groove extends 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 on the outside of the sample through the notch, and the upper end of the U-shaped member slides through the first slide groove.

[0006] In one possible implementation, the partition assembly further includes two upright posts. The two upright posts are symmetrically positioned on either side of the sample along the first horizontal direction. A second chute is provided on the surface of the upright post facing away from the sample. The second chute vertically extends through both ends of the upright post. The upright post is embedded and fixed within the vehicle panel, with the top surface of the upright post flush with the top surface of the vehicle panel. The upright post penetrates the vehicle panel away from the sample. The U-shaped member has two sliding portions, with the notch formed between the two sliding portions. The two sliding portions slide through the two second chute respectively.

[0007] In one possible implementation, the partition assembly further includes a blocking member and a fixed column. The blocking member is located below the vehicle plate and between the two upright columns, and is fixedly connected to both the vehicle plate and the two upright columns. The fixed column is disposed along the first horizontal direction and fixed to the bottom surface of the test chamber, and slidably engages with the blocking member and the bottom surfaces of the two upright 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, the two coupling units correspond one to one to the two test chambers, 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 communicates 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 provided on the spray pipe. The switch valve is provided 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 is fixed in the leakage hole.

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

[0011] In one 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 mounted on the friction plate. The drive assembly is located between the vehicle plate and the friction plate, and is fixedly mounted 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 one 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 communicates with the corresponding test chamber. One end of the air outlet pipe is fixedly connected to the test box and communicates with the corresponding test chamber. There are two friction positioning units, one located in each of the two test chambers. When the friction plate moves downward, the friction plate can seal the water leakage hole on the bottom wall of the test chamber.

[0013] In one 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 inserted into 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. The second limiter is provided with a threaded hole arranged vertically with the axis. The screw of the locking bolt is inserted into the first limiter and is threadedly connected to the threaded hole.

[0014] In the embodiment of the present application, the two ultraviolet lamps respectively provide ultraviolet rays of different intensities. 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 device 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 following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 any creative work.

[0016] Figure 1 A schematic structural diagram from a first angle of an accelerated simulation test device for all-weather aging of asphalt and asphalt mixtures provided by an embodiment of the present invention;

[0017] Figure 2 for Figure 1 Schematic diagram of the enlarged structure of local A in FIG;

[0018] Figure 3 A schematic diagram of the structure of an accelerated simulation test device for all-weather aging of asphalt and asphalt mixtures provided by an embodiment of the present invention from a second angle;

[0019] Figure 4 A schematic structural diagram of an accelerated all-weather aging simulation test device for asphalt and asphalt mixtures provided by an embodiment of the present invention, with the sealing components removed;

[0020] Figure 5 for Figure 4 Schematic diagram of the enlarged structure of the local B in FIG;

[0021] Figure 6 A schematic cross-sectional view of an accelerated all-weather aging simulation test device for asphalt and asphalt mixtures provided by an embodiment of the present invention, with the sealing components removed;

[0022] Figure 7 for Figure 6 Schematic diagram of the enlarged structure of the local C in FIG;

[0023] Figure 8 A schematic structural diagram of a partition assembly in an accelerated all-weather aging simulation test device for asphalt and asphalt mixtures provided by an embodiment of the present invention;

[0024] Figure 9 A schematic structural diagram of a test box in an all-weather accelerated aging simulation test device for asphalt and asphalt mixtures provided by an embodiment of the present invention.

[0025] In the figure: 1. test box; 11. test cavity; 111. test room; 12. water cavity; 13. water leakage hole; 2. closing assembly; 21. closing plate; 22. first limit member; 23. second limit member; 24. locking bolt; 3. vehicle body; 31. vehicle plate; 4. partition assembly; 41. fixing member; 411. first slide groove; 42. U-shaped member; 421. notch; 422. sliding part; 43. column; 431. second slide groove; 44. blocking member; 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; 81. fixing pipe; 82. friction plate; 83. sliding shaft; 84. drive assembly; 9. sample. DETAILED DESCRIPTION

[0026] 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 with reference to 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.

[0027] It should be further explained that the drawings and implementation methods 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.

[0028] When an element is referred to as being “fixed to” or “disposed on” another element, it can 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 can be directly connected to the other element or indirectly connected to the other element.

[0029] 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 device or element referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0030] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being referred to. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "plurality" means two or more, and "several" means one or more, unless otherwise specifically defined.

[0031] Please also refer to Figure 1 、 Figure 4 、 Figure 8 and Figure 9The present invention now provides a device for accelerating the aging of asphalt and asphalt mixtures in all-weather conditions. The device comprises a test chamber 1, a sealing assembly 2, a vehicle body 3, a partition assembly 4, and two ultraviolet lamps 5. The test chamber 1 comprises a test chamber 11, one end of which, along a first horizontal direction, is open. The sealing assembly 2 is used to open and close the open end of the test chamber 11. The vehicle body 3 is positioned within the test chamber 11 and comprises a horizontally disposed vehicle plate 31 for supporting a sample 9. The partition assembly 4 is positioned within the test chamber 11, with one end of the partition assembly 4 abutting against a side wall of the test chamber 1 and the other end abutting against the sealing assembly 2. The partition assembly 4 is mounted over the vehicle plate 31 and the sample 9 on the vehicle plate 31, thereby dividing the test chamber 11 into two test chambers 111. The two ultraviolet lamps 5 are positioned within the two test chambers 111, respectively, and both are located above the sample 9. The ultraviolet lamps 5 are fixedly connected to the test chamber 1.

[0032] The present invention provides an accelerated all-weather aging simulation test device for asphalt and asphalt mixtures. Compared with the existing technology, 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 located in the two test chambers 111 can be respectively exposed to ultraviolet rays of different intensities, so that a control test can be carried out, thereby avoiding the problem that the existing accelerated all-weather aging simulation test device cannot provide two different environmental factors for the same sample 9 at the same time for a control test.

[0033] In some embodiments, the above-mentioned feature partition assembly 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 part 41. The fixing part 41 is fixed on the top wall of the test cavity 11, and the bottom surface of the fixing part 41 is provided with a first slide groove 411, and the first slide groove 411 passes through both ends of the fixing part 41 along the first horizontal direction. The bottom surface of the U-shaped part 42 has a notch 421, and the U-shaped part 42 is slidably mounted on the outside of the sample 9 through the notch 421, and the upper end of the U-shaped part 42 is slidably passed through the first slide groove 411. In this way, the space above the vehicle plate 31 of the test cavity 11 can be separated. When the closing assembly 2 opens the open end of the test cavity 11, the U-shaped part 42 can exit the test cavity 11 along with the vehicle body 3.

[0034] In some embodiments, the above-mentioned feature partition assembly 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 upright posts 43. The two upright posts 43 are symmetrically arranged on either side of the sample 9 along a first horizontal direction. Second chutes 431 are provided on the surfaces of the upright posts 43 facing away from the sample 9. The second chutes 431 vertically extend through both ends of the upright posts 43. The upright posts 43 are embedded and fixed within the vehicle plate 31. The top surfaces of the upright posts 43 are flush with the top surface of the vehicle plate 31, and the upright posts 43 penetrate the vehicle plate 31 in a direction away from the sample 9. The U-shaped member 42 has two sliding portions 422, with a notch 421 formed between the two sliding portions 422. The two sliding portions 422 slide through the two second chutes 431, respectively. When the closure assembly 2 opens the open end of the test cavity 11 and the vehicle body 3 is located outside the test cavity 11, the sample 9 is placed on the vehicle plate 31, and then the U-shaped member 42 is placed on the sample 9 and the two sliding portions 422 are respectively slid into the two sliding portions 422. 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 portion 422 by the second slide groove 431 can allow the vehicle body 3 to enter the test cavity 11 along a preset trajectory. 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.

[0035] In some embodiments, the above-mentioned feature partition assembly 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 piece 44 and a fixed column 45. The blocking piece 44 is located below the vehicle plate 31 and between the two columns 43. The blocking piece 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 fixed on the bottom surface of the test chamber 11. The fixed column 45 slides in contact with the blocking piece 44 and the bottom surface of the two columns 43. The structure composed of the blocking piece 44, the two columns 43 and the U-shaped piece 42 is sleeved on 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 piece 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.

[0036] In some embodiments, see Figure 3 、 Figure 4 and Figure 6The test box 1 also has a water chamber 12. An accelerated simulation test device for all-weather aging of asphalt and asphalt mixtures also includes two coupling units, which correspond one to one with the two test chambers 111. The coupling units include a spray head 61, a spray pipe 62, a water 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 water pump 63 is provided on the spray pipe 62. The switch valve 64 is provided on the spray pipe 62 and is located between the water pump 63 and the spray head 61. The water pump 63 extracts water from the water chamber 12 through the spray pipe 62 and sprays it on the sample 9 through the spray head 61. The water flow rate within the spray pipe 62 can be controlled by the on / off valve 64, thereby simulating different intensities of precipitation within the test chamber 111. This allows the two test chambers 111 to simultaneously simulate different intensities of precipitation, further avoiding the problem of existing aging test equipment being unable to simultaneously provide two different environmental conditions for the same sample 9 for comparative testing. In this embodiment, the spray head 61 is located above the sample 9.

[0037] In some embodiments, see Figure 6 、 Figure 7 and Figure 9 The water chamber 12 is located below the test chamber 11. Each test chamber 111 has a drain hole 13 on its bottom surface for connecting the test chamber 111 with the water chamber 12. A filter screen 7 is fixed inside the drain hole 13. The water sprayed by the sprinkler head 61 is filtered through the filter screen 7 in the drain hole 13 and flows into the water chamber 12 for recycling.

[0038] In some embodiments, see Figure 6 The test cavity 11 extends along the first horizontal direction to the side where the opening end of the test cavity 11 faces outside the test cavity 11. In this way, the vehicle body 3 moves on the top wall of the water storage cavity 12 to enter and exit the test cavity 11.

[0039] In some embodiments, see Figure 6 and Figure 7An accelerated all-weather aging simulation test device for asphalt and asphalt mixtures also includes a friction positioning unit, 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 drive assembly 84. There are two fixed tubes 81, each of which is vertically arranged and fixedly connected to the vehicle plate 31. The friction plate 82 is horizontally arranged and located below the fixed tubes 81. Two sliding shafts 83 slide through the two fixed tubes 81 and are fixedly mounted on the friction plates 82. The drive assembly 84 is located between the vehicle plate 31 and the friction plates 82 and is fixedly mounted on the vehicle plate 31. The drive assembly 84 includes a piston rod that can extend and retract vertically and is fixedly connected to the friction plates 82. The sliding fit between the sliding shafts 83 and the fixed tube 81 allows the friction plates 82 to be raised and lowered. The piston rod of the drive assembly 84 drives the friction plates 82 up and down by extending and retracting. When the vehicle body 3 moves, a gap exists between the friction plate 82 and the top wall of the water chamber 12. When the vehicle body 3 reaches a preset position within the test chamber 11 or is positioned outside the test chamber 11 to place the sample 9, the piston rod of the drive assembly 84 drives the friction plate 82 downward until the friction plate 82 presses against the top wall of the water chamber 12. 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, thereby maintaining the vehicle body 3 in a stable state as much as possible. In this embodiment, the drive assembly 84 can be an electric push rod, a hydraulic rod, or a pneumatic cylinder, and the choice can be based on actual site conditions.

[0040] In some embodiments, the characteristic coupling unit may be implemented 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 communicates with the corresponding test chamber 111. One end of the air outlet pipe 66 is fixedly connected to the test box 1 and communicates 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 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 testing.

[0041] 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 limiting member 22, a second limiting member 23 and a locking bolt 24. The closing plate 21 is perpendicular to the first horizontal direction and slides along the second horizontal direction to penetrate into one of the side walls of the test chamber 11. The second horizontal direction is perpendicular to the first horizontal direction. The first limiting member 22 is fixedly connected to the closing plate 21. The second limiting member 23 is fixedly connected to the test box 1 and is located below the first limiting member 22. The second limiting member 23 is provided with a threaded hole arranged vertically with the axis. The screw of the locking bolt 24 is penetrated into the first limiting member 22 and is threadedly connected to 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.

[0042] 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.

[0043] 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 scope of protection 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 for opening and closing the open end of the test cavity; 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 closure assembly, and the partition assembly is sleeved over 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 passes through both ends of the fixing member along the first horizontal direction; The U-shaped part has a notch on its bottom surface. The U-shaped part is slidably sleeved on the outside of 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 according to claim 2, characterized in that: The partition assembly further comprises: Two upright posts are symmetrically arranged on both sides of the sample along the first horizontal direction, and second slide grooves are provided on the surfaces of the upright posts facing away from the sample. The second slide grooves vertically penetrate both ends of the upright posts. The upright posts are embedded and fixed in the vehicle plate, and the top surfaces of the upright posts are flush with the top surface of the vehicle plate. The upright posts penetrate the vehicle plate in a direction away from the sample. Wherein, the U-shaped part 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 according to claim 3, characterized in that: The partition assembly further comprises: 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, the two coupling units corresponding to the two test chambers one by one, and the coupling units include: A sprinkler head is located in the corresponding test chamber; A spray pipe, one end of which is fixedly connected to the test box and communicates with the water chamber, and the other end is located in the corresponding test chamber and connected to the spray head, and the middle portion of the spray pipe penetrates the test box and is fixedly connected to the test box; A water pump is provided on the spray pipe; The switch valve is provided 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 according to 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 according to claim 6, characterized in that: The test cavity extends along the first horizontal direction to a side where the opening end of the test cavity faces outside the test cavity.

8. The asphalt and asphalt mixture all-weather aging accelerated simulation test device according to claim 7, characterized in that: It also includes a friction positioning unit, which is located below the vehicle plate and includes: Two fixed pipes are vertically arranged and fixedly connected to the vehicle plate; a friction plate, arranged horizontally and located below the fixed tube; Two sliding shafts are respectively slidably inserted into 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 to 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 according to 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 hole 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, perpendicular to the first horizontal direction and slidably disposed in one of the side walls of the test chamber along a second horizontal direction, the second horizontal direction being 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 provided in the first limiting member and is threadedly connected in the threaded hole.

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