Asphalt concrete test sampling constant heat preservation device

Abstract

The invention discloses an asphalt concrete test sampling constant heat preservation device which comprises a heat insulation box, the upper end of the heat insulation box is provided with a feeding port, the feeding port is provided with a cover body, the upper end of the rear side of the heat insulation box is provided with a discharging port, the discharging port is provided with a first box door, the lower end of the front side of the heat insulation box is provided with an operation port, and the operation port is provided with a second box door. A storage cylinder is arranged in the heat insulation box and rotationally connected to the heat insulation box, a piston is arranged in the storage cylinder and connected with a power assembly, a first heating assembly is arranged at the position, at the front end of the storage cylinder, in the heat insulation box, a second heating assembly is arranged at the position, at the rear end of the storage cylinder, in the heat insulation box, and a control panel is arranged on the side edge of the heat insulation box. When the power mechanism discharges materials from the storage cylinder, the piston is pushed to move outwards, asphalt concrete is pushed out, asphalt attached to the inner wall of the storage cylinder is also pushed out, the piston exposed at the opening of the storage cylinder is mainly cleaned during cleaning, cleaning is convenient and clean, and the accuracy and reliability of detection are guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of highway engineering, and in particular to a constant temperature insulation device for sampling an asphalt concrete test. Background Art

[0002] In the field of road construction and maintenance, the quality of asphalt concrete directly affects the service life of the road surface and driving safety. In order to ensure that the quality of asphalt concrete meets the standards, asphalt concrete needs to be sampled during the construction process and subjected to a series of tests in a laboratory environment. The sample needs to maintain temperature after sampling until it arrives at the laboratory. Therefore, insulation treatment after sampling is particularly important.

[0003] The main function of the traditional asphalt concrete test sampling and insulation device is to maintain the temperature of the sample after sampling so that its performance indicators will not be affected by temperature changes during transportation to the laboratory. However, after storing the asphalt concrete, due to the viscosity and high temperature characteristics of the material itself, some asphalt will adhere to the inner wall of the container, making it difficult to thoroughly clean the inside of the device. When the device is used to store the next sample, the asphalt of the previous sample will mix with the new sample, which will not only contaminate the new sample, but also affect the accuracy and reliability of subsequent tests. Summary of the invention

[0004] The purpose of the present invention is to provide a constant temperature insulation device for sampling asphalt concrete test, which pushes the piston through a power component to prevent asphalt from adhering to the inner wall of the storage cylinder during the process of pushing out the asphalt concrete, and finally mainly cleans the piston to ensure the accuracy and reliability of the detection.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A constant temperature insulation device for sampling asphalt concrete test, comprising a heat insulation box, a feed port is provided at the upper end of the heat insulation box, the feed port is provided with an openable cover, a discharge port is provided at the upper end of the rear side of the heat insulation box, the discharge port is provided with an openable first box door, the discharge port extends to the feed port, an operation port is provided at the lower end of the front side of the heat insulation box, an openable second box door is provided on the operation port, a storage cylinder with an upper opening is provided in the heat insulation box, the left and right sides of the middle part of the storage cylinder are rotatably connected to the heat insulation box, and the open end of the storage cylinder can be rotated backward To the discharge port, the upper end of the storage cylinder extends to the feed port and is sealed by the cover body, a piston is provided in the storage cylinder, the lower end of the piston is connected to a power component, the power component passes through the storage cylinder, a first heating component is provided at the front end of the storage cylinder in the insulation box, the first heating component can slide upward, a second heating component is provided at the rear end of the storage cylinder in the insulation box, the second heating component can slide downward, a control panel is provided on the side of the insulation box, the first heating component and the second heating component are both electrically connected to the control panel.

[0007] By adopting the above technical solution, when pouring the asphalt concrete from the storage cylinder, the open end of the storage cylinder is rotated to the discharge port, and the piston is pushed by the power component to gradually push the asphalt concrete out for testing. The asphalt attached to the inner wall of the storage cylinder will also be pushed out. Finally, the piston is mainly cleaned, and then the storage cylinder is cleaned. The cleaning is convenient and clean, and new samples will not be contaminated, ensuring the accuracy and reliability of subsequent tests. During the storage process, the storage cylinder is heated and kept warm by the first heating component and the second heating component to avoid the need for secondary heating during testing, which affects the test results.

[0008] The present invention is further configured as follows: the power assembly includes a screw and a handle, the upper end of the screw is rotatably connected to the piston, the lower end of the screw is detachably connected to the handle, and the connecting rod is threadedly connected to the bottom of the storage cylinder.

[0009] By adopting the above technical solution, the piston is pushed to slide back and forth by rotating the screw.

[0010] The present invention is further configured as follows: the power assembly includes an automatic telescopic rod and an armrest, the output shaft of the automatic telescopic rod passes through the bottom of the storage tube and is connected to the piston, the armrest is connected to the lower end of the automatic telescopic rod, and the automatic telescopic rod is electrically connected to the control panel.

[0011] By adopting the above technical solution, the piston is pushed to slide back and forth by controlling the automatic telescopic rod, which is very labor-saving.

[0012] The present invention is further configured as follows: the first heating component and the second heating component each include a slider, a heating layer, a mounting bar, a gear, a rack and a rotating motor; the slider is vertically mounted in the heat insulation box; the heating layer is mounted on the side of the slider close to the storage cylinder; the heating layer is arc-shaped and fits the storage cylinder; the heating layer slides with the outer wall of the storage cylinder; the mounting bar is disposed on the left and right sides of the heat insulation box; the storage cylinder is rotatably connected to the mounting bar; the gear is mounted in the mounting bar; the rack is vertically mounted on the slider; the rack is meshed with the gear; the rack on the first heating component extends to the bottom of the mounting cylinder; the rotating motor is mounted on the heat insulation box; the rotating motor is connected to the gear; and the rotating motor is electrically connected to the control panel.

[0013] By adopting the above technical solution, the first heating component and the second heating component are attached to the storage cylinder through the heating layer to perform heating and heat preservation, and the storage cylinder needs to be rotated backward to the discharge port, so the first heating component needs to slide upward to facilitate the lower part of the storage cylinder and the power component to rotate forward out of the heat insulation box; the second heating component needs to slide downward to facilitate the upper part of the storage cylinder to rotate successively. The first heating component and the second heating component slide in a way that the motor drives the gear to rotate, and the gear drives the two racks to move up and down, thereby driving the two sliders to slide in the upper and lower directions respectively.

[0014] The present invention is further configured as follows: a temperature sensor is installed on the side wall of the storage cylinder, and the temperature sensor is electrically connected to the control panel.

[0015] By adopting the above technical solution, the temperature can be better controlled.

[0016] The present invention is further configured as follows: invisible handles are provided on both left and right sides of the heat insulation box.

[0017] By adopting the above technical solution, the device can be easily moved.

[0018] The present invention is further configured as follows: a sealing ring is provided at the lower end of the cover body.

[0019] By adopting the above technical solution, it is convenient to seal the upper end of the storage cylinder.

[0020] The present invention is further configured as follows: the cover, the first door and the second door are all made of heat-insulating materials.

[0021] By adopting the above technical scheme, the heat insulation performance of the device is guaranteed, the heat insulation is convenient to operate, and the heat preservation is also utilized.

[0022] In summary, the present invention has the following beneficial effects:

[0023] First, when the power mechanism in the present invention discharges material from the storage cylinder, it pushes the piston to move outward to push out the asphalt concrete, and the asphalt attached to the inner wall of the storage cylinder will also be pushed out. When cleaning, it is mainly necessary to clean the piston exposed at the opening of the storage cylinder. The cleaning is convenient and clean, ensuring the accuracy and reliability of the detection.

[0024] Secondly, the storage cylinder in the present invention maintains a vertical state with the opening facing upward during storage, which is convenient for loading and transportation. When the asphalt concrete needs to be discharged, the storage cylinder can be rotated to the discharge port to facilitate the discharge of the asphalt concrete.

[0025] Thirdly, the first heating component and the second heating component in the present invention drive the gear to rotate by rotating the motor, and the gear drives the rack to rotate, so as to realize the first heating component and the second heating component to move in two directions, namely, upward and downward, which is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 is a cross-sectional view of the present invention (Example 1);

[0028] Figure 3 is a cross-sectional view of the present invention when in use;

[0029] Figure 4 is a cross-sectional view of the mounting strip in the present invention;

[0030] Figure 5 is a cross-sectional view of the rotating motor in the present invention;

[0031] Figure 6 It is a cross-sectional view of the present invention (Example 2).

[0032] In the figure: 1. heat insulation box; 11. feed port; 12. discharge port; 13. operation port; 14. invisible handle; 2. cover body; 21. sealing ring; 3. first box door; 4. second box door; 5. storage cylinder; 51. temperature sensor; 6. piston; 7. power assembly; 71. screw; 72. handle; 73. automatic telescopic rod; 74. armrest; 8. first heating assembly; 81. slider; 82. heating layer; 83. mounting strip; 84. gear; 85. rack; 86. rotating motor; 9. second heating assembly; 10. control panel. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0034] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front”, “back”, “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 operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0035] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0036] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Embodiment 1, a constant temperature insulation device for sampling asphalt concrete test, such as Figures 1 to 5 As shown, it includes a heat insulation box 1, which is made of heat-insulating materials and plays a role in heat insulation. A feed port 11 is provided at the upper end of the heat insulation box 1, and the feed port 11 is provided with an openable cover 2. A discharge port 12 is provided at the upper end of the rear side of the heat insulation box 1, and the discharge port 12 is provided with an openable first box door 3, and the discharge port 12 extends to the feed port 11. An operation port 13 is provided at the lower end of the front side of the heat insulation box 1, and an openable second box door 4 is provided on the operation port 13. A storage cylinder 5 with an upper opening is provided in the heat insulation box 1, and both left and right sides of the middle part of the storage cylinder 5 are rotatably connected to the heat insulation box 1, and the open end of the storage cylinder 5 can be rotated backward to the discharge port 12, and the lower end of the storage cylinder 5 can be rotated forward to the operation port 13. When the asphalt concrete is stored in the storage cylinder 5, the storage cylinder 5 keeps the open end facing upward. When the asphalt concrete needs to be poured out, the storage cylinder 5 is rotated to the discharge port 12. Of course, the storage cylinder 5 can be horizontally backward or tilted backward and downward at this time, as long as it is convenient to pour out the asphalt concrete.

[0038] When the storage cylinder 5 is in a vertical state with the open end facing upward, the upper end of the storage cylinder 5 extends to the feed port 11 and is sealed by the cover 2. A piston 6 is provided in the storage cylinder 5. The lower end of the piston 6 is connected to a power assembly 7, and the power assembly 7 passes through the storage cylinder 5. When pouring out the asphalt concrete, the piston 6 is pushed to slide by the power assembly 7 to push out the asphalt concrete. Of course, since the insulation temperature is 130-170°C, reaching the softening point of asphalt, the asphalt attached to the inner wall of the storage cylinder 5 is also pushed out when the asphalt concrete is pushed out, so as to keep the inner wall of the storage cylinder 5 clean. In the later cleaning, it is sufficient to focus on cleaning the exposed piston 6 to avoid the residual asphalt from mixing with the sample during the next sampling, which affects the accuracy and reliability of the detection.

[0039] The power assembly 7 in this embodiment includes a screw rod 71 and a handle 72. The upper end of the screw rod 71 is rotatably connected to the piston 6, and the lower end of the screw rod 71 is detachably connected to the handle 72. The connecting rod is threadedly connected to the bottom of the storage tube 5. The screw rod 71 is rotated by the handle 72 to push the piston 6. Of course, the handle 72 is detachable to facilitate manual rotation of the screw rod 71 and prevent the handle 72 from being heated in the heat insulation box 1 to affect the operation.

[0040] The piston 6 needs to be made of a high temperature resistant metal material, adapted to a temperature of 130-170° C., and convenient for scraping and pushing out the softened asphalt on the inner wall of the storage cylinder 5 .

[0041] A first heating component 8 is provided at the front end of the storage cylinder 5 in the heat-insulating box 1, and the first heating component 8 can slide upwards. A second heating component 9 is provided at the rear end of the storage cylinder 5 in the heat-insulating box 1, and the second heating component 9 can slide downwards. A control panel 10 is provided on the side of the heat-insulating box 1, and the first heating component 8 and the second heating component 9 are both electrically connected to the control panel 10. In addition to heating the storage cylinder 5, the first heating component 8 and the second heating component 9 also need to move up and down to facilitate the rotation of the storage cylinder 5, which does not affect the heating of the storage cylinder 5 by the first heating component 8 and the second heating component 9, nor does it affect the rotation of the storage cylinder 5.

[0042] The first heating component 8 and the second heating component 9 both include a slider 81, a heating layer 82, a mounting bar 83, a gear 84, a rack 85 and a rotating motor 86. The slider 81 is vertically installed in the heat insulation box 1, and the heating layer 82 is installed on the side of the slider 81 close to the storage tube 5. The heating layer 82 is in an arc shape and fits the storage tube 5. The heating layer 82 slides with the outer wall of the storage tube 5. The mounting bar 83 is arranged on the left and right sides of the heat insulation box 1. The storage tube 5 is rotatably connected to the mounting bar 83. The gear 84 is installed in the mounting bar 83. The rack 85 is vertically installed on the slider 81. The rack 85 is meshed with the gear 84. The rack 85 on the first heating component 8 extends to the bottom of the mounting tube. The rotating motor 86 is installed on the heat insulation box 1. The rotating motor 86 is connected to the gear 84. The rotating motor 86 is electrically connected to the control panel 10. When in use, the gear 84 is driven to rotate by rotating the motor 86, and the gear 84 drives the racks 85 on both sides to slide up and down, thereby driving the two sliders 81 to slide up and down. Of course, when installing, it is necessary to ensure that the rack 85 on the first heating component 8 is longer, and the gear 84 is installed at a lower position to facilitate the corresponding function. In addition, the first heating component 8 and the second heating component 9 can also be manually raised and lowered. Without using the rotating motor 86, the first heating component 8 can also be raised by pressing the second heating component 9 with the help of the gear 84 and the rack 85.

[0043] A temperature sensor 51 is installed on the side wall of the storage cylinder 5, and the temperature sensor 51 is electrically connected to the control panel 10. The temperature sensor 51 detects the real-time temperature of the storage cylinder 5, and can better control the insulation temperature. The insulation temperature is generally controlled at 130-170°C, which is close to the temperature of the asphalt concrete when it is transported to the site. Of course, the storage temperature is different when sampling at different places.

[0044] Invisible handles 14 are provided on both sides of the heat-insulating box 1 to facilitate the movement of the device. The mass of the sample is 4 kg, and the mass of the device does not exceed 25 kg. In addition to the heat-insulating material, it is convenient for the inspector to move the device directly through the invisible handles 14. Of course, if multiple storage cylinders 5 are provided, universal wheels or other components that are more convenient to move need to be provided.

[0045] A sealing ring 21 is provided at the lower end of the cover body 2 , so that the cover body 2 can better seal the storage cylinder 5 .

[0046] The cover 2, the first door 3 and the second door 4 are all made of heat-insulating materials to provide heat insulation. It should also be noted that the cover 2, the first door 3 and the second door 4 can be opened by sliding, rotating or separating, but the heat insulation function needs to be ensured. The cover 2, the first door 3 and the second door 4 need to be provided with corresponding locks when they are provided to ensure the safety of the samples.

[0047] Embodiment 2, as Figure 6As shown, the features of this embodiment that are the same as those of the first embodiment are not repeated here. The features of this embodiment that are different from those of the first embodiment are:

[0048] The power assembly 7 in this embodiment includes an automatic telescopic rod 73 and an armrest 74. The output shaft of the automatic telescopic rod 73 passes through the bottom of the storage tube 5 and is connected to the piston 6. The armrest 74 is connected to the lower end of the automatic telescopic rod 73. The automatic telescopic rod 73 is electrically connected to the control panel 10. It is very labor-saving to push the piston 6 through the automatic telescopic rod 73. The automatic telescopic rod 73 can be a telescopic motor or a hydraulic cylinder, which can be selected according to needs. The armrest 74 is convenient for controlling the automatic telescopic rod 73 and the storage tube 5 by hand.

[0049] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A constant temperature insulation device for sampling asphalt concrete test, characterized in that: The invention comprises a heat-insulating box (1), wherein a feed port (11) is provided at the upper end of the heat-insulating box (1), and the feed port (11) is provided with an openable cover (2); a discharge port (12) is provided at the upper end of the rear side of the heat-insulating box (1), and the discharge port (12) is provided with an openable first door (3), and the discharge port (12) extends to the feed port (11); an operation port (13) is provided at the lower end of the front side of the heat-insulating box (1), and an openable second door (4) is provided on the operation port (13); a storage cylinder (5) with an upper opening is provided in the heat-insulating box (1), and the left and right sides of the middle part of the storage cylinder (5) are rotatably connected to the heat-insulating box (1), and the open end of the storage cylinder (5) can be rotated backward to the discharge port (12). The upper end of the storage cylinder (5) extends to the feed port (11) and is sealed by the cover body (2). A piston (6) is provided in the storage cylinder (5). The lower end of the piston (6) is connected to a power assembly (7). The power assembly (7) passes through the storage cylinder (5). A first heating assembly (8) is provided at the front end of the storage cylinder (5) in the heat-insulating box (1). The first heating assembly (8) can slide upward. A second heating assembly (9) is provided at the rear end of the storage cylinder (5) in the heat-insulating box (1). The second heating assembly (9) can slide downward. A control panel (10) is provided on the side of the heat-insulating box (1). The first heating assembly (8) and the second heating assembly (9) are both electrically connected to the control panel (10).

2. The asphalt concrete test sampling constant temperature insulation device according to claim 1, characterized in that: The power assembly (7) comprises a screw rod (71) and a handle (72), wherein the upper end of the screw rod (71) is rotatably connected to the piston (6), the lower end of the screw rod (71) is detachably connected to the handle (72), and the connecting rod is threadedly connected to the bottom of the storage cylinder (5).

3. The asphalt concrete test sampling constant temperature insulation device according to claim 1, characterized in that: The power assembly (7) comprises an automatic telescopic rod (73) and an armrest (74). The output shaft of the automatic telescopic rod (73) passes through the bottom of the storage cylinder (5) and is connected to the piston (6). The armrest (74) is connected to the lower end of the automatic telescopic rod (73). The automatic telescopic rod (73) is electrically connected to the control panel (10).

4. A constant temperature insulation device for sampling asphalt concrete test according to any one of claims 2 or 3, characterized in that: The first heating component (8) and the second heating component (9) both comprise a slider (81), a heating layer (82), a mounting bar (83), a gear (84), a rack (85) and a rotating motor (86); the slider (81) is vertically mounted in the heat-insulating box (1); the heating layer (82) is mounted on a side of the slider (81) close to the storage cylinder (5); the heating layer (82) is arc-shaped and fits the storage cylinder (5); the heating layer (82) is slidably matched with the outer wall of the storage cylinder (5); the mounting bar (83) is arranged on the heat-insulating box (1) On the left and right sides inside, the storage cylinder (5) is rotatably connected to the mounting strip (83), the gear (84) is installed in the mounting strip (83), the rack (85) is vertically installed on the slider (81), the rack (85) is meshed with the gear (84), the rack (85) on the first heating component (8) extends to the bottom of the mounting cylinder, the rotating motor (86) is installed on the heat insulation box (1), the rotating motor (86) is connected to the gear (84), and the rotating motor (86) is electrically connected to the control panel (10).

5. The asphalt concrete test sampling constant temperature insulation device according to claim 4, characterized in that: A temperature sensor (51) is installed on the side wall of the storage cylinder (5), and the temperature sensor (51) is electrically connected to the control panel (10).

6. The asphalt concrete test sampling constant temperature insulation device according to claim 5, characterized in that: Invisible handles (14) are provided on both left and right sides of the heat insulation box (1).

7. The asphalt concrete test sampling constant temperature insulation device according to claim 6, characterized in that: A sealing ring (21) is provided at the lower end of the cover body (2).

8. The asphalt concrete test sampling constant temperature insulation device according to claim 7, characterized in that: The cover body (2), the first box door (3) and the second box door (4) are all made of heat-insulating materials.

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