Asphalt material temporary storage moving device for highway expansion joint laying

Abstract

According to the asphalt material temporary storage moving device for highway expansion joint laying, a stirring and mixing device is additionally arranged in existing similar moving equipment, and under the condition that an original local heating assembly structure is still kept, the stirring and mixing device can be used for stirring and mixing asphalt materials. All asphalt materials stored in the device can be uniformly heated, high fluidity of the materials and performance consistency of all the materials are guaranteed, workers can integrally adjust the performance states of all the asphalt materials conveniently, and meanwhile the local pavement construction quality of a pavement can be improved. The device comprises a bearing platform storage box body, an inclined guide part used for guiding a bottom asphalt material to one side of a lifting opening and closing bin door is arranged in the storage box body, and a heat preservation heating unit is arranged at the lower position, close to the inclined guide part, of the bearing platform; and a stirring and mixing mechanism for upwards lifting and moving the asphalt material at the bottom is also arranged in the storage box body.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary devices and equipment for road construction, specifically a temporary storage and moving device for asphalt materials used in the laying of expansion joints on highways. Background Technology

[0002] Currently, asphalt is laid on the road surface during highway construction to effectively improve road surface smoothness and make vehicle driving smooth and comfortable. Furthermore, asphalt-paved roads have excellent anti-skid properties, providing sufficient friction for tires under different weather conditions to ensure driving safety. The flexibility and fatigue resistance of asphalt materials make the road surface durable, able to withstand repeated vehicle loads, reducing cracks, ruts, and other defects, lowering maintenance costs, and absorbing vehicle noise to reduce traffic noise pollution. Moreover, construction and maintenance are convenient, allowing for quick repair of damage and minimizing traffic impact. During road construction, contraction joint structures are typically installed, usually composed of rubber strips, steel sections, and anchoring systems. Their main function is to regulate the displacement and connection between the superstructure caused by temperature changes and vehicle loads. They allow the structure to naturally expand and contract with temperature changes, preventing damage caused by thermal expansion and contraction, while absorbing the impact of vehicle movement to ensure smooth driving and prevent vehicle bouncing. This is crucial for ensuring the structural integrity and driving safety of highways.

[0003] Because expansion joints have reserved gaps and relatively complex structural components, when laying asphalt material in sections adjacent to the main road surface, construction workers typically need to use small devices for precise handling. This is to avoid potential blockages in the gaps and holes caused by large-scale asphalt material discharge from transport vehicles, or problems with covering exposed structures. It also prevents deformation and damage to the internal structural components of the expansion joint during the movement of large equipment. After the asphalt material is discharged from the transport vehicle's storage tank, small, easily maneuverable transfer devices are usually used to move it to the target construction area. During this process, considering the stability and fluidity of the asphalt material, it still needs to be heated and insulated to prevent localized loss of fluidity or even solidification, which could hinder smooth discharge.

[0004] For example, the asphalt tank insulation structure disclosed in Chinese utility model patent application CN202420378001.9 includes a base, on which a tank body is fixedly installed. The upper surface of the tank body has symmetrically formed mounting grooves, in which solar panels are fixedly installed. The base surface has mounting grooves, in which pressure plates are fixedly installed. The base has a sliding groove, in which a sliding rod is slidably installed. A moving rod is slidably installed within the sliding groove, and a locking block is fixedly installed on the moving rod. The tank body has a fixing groove, in which a fixing rod is slidably installed, and the fixing rod engages with the solar panel. This structure, through the cooperation of a first spring, pressure plate, sliding rod, moving rod, locking block, and fixing rod, allows the solar panel to be disassembled during tank cleaning, preventing damage and extending its service life.

[0005] However, the applicant discovered that existing devices for short-distance mobile construction of asphalt materials, similar to those described in the above scheme, typically achieve insulation only through localized heating. However, due to the poor thermal conductivity of asphalt, localized heating can easily lead to a decrease in temperature of the asphalt material further away from the heat source. This can result in inconsistent material flow within the device or even localized denaturation and solidification of the asphalt material, causing difficulties in subsequent construction work.

[0006] To address the aforementioned problems, this utility model provides a temporary asphalt material storage and moving device for highway expansion joint paving. It adds a stirring and mixing device to the interior of existing similar mobile devices. While maintaining the original local heating component structure, it can achieve uniform heating and temperature rise of all the asphalt material stored inside the device, ensuring high material fluidity and consistency of material properties in each part. This facilitates the overall adjustment of the performance of all asphalt materials by the workers, and also improves the quality of local road paving construction. Utility Model Content

[0007] This utility model provides a temporary storage mobile device for asphalt materials used in the paving of highway expansion joints. It adds a stirring and mixing device to the interior of existing similar mobile devices. While maintaining the original local heating component structure, it can achieve uniform heating of all the asphalt materials stored inside the device, ensuring high fluidity of the material and consistency of the properties of each part of the material. This makes it easier for workers to make overall adjustments to the performance of all the asphalt materials, and at the same time improves the quality of local paving construction.

[0008] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0009] A temporary storage and moving device for asphalt material used in highway expansion joint paving is characterized by: a support platform at the bottom and a hollow storage box inside the support platform; a material filling port at the top of the storage box, and a lifting and opening door on the side of the storage box; an inclined guide part inside the storage box for guiding the bottom asphalt material towards the lifting and opening door; a heat preservation and heating unit at a lower position on the support platform near the inclined guide part; and a stirring and mixing mechanism inside the storage box for lifting and moving the bottom asphalt material upwards.

[0010] As a preferred embodiment of the present invention, the stirring and mixing mechanism includes an inclined rotary main shaft, with the lower end of the rotary main shaft mounted above the heat preservation and heating unit, and the higher end connected to the output end of the mixing drive device located in the upper part of the storage tank; a spiral blade is also fixedly installed on the rotary main shaft, and the rotary main shaft can drive the spiral blade to rotate under the drive of the mixing drive device and move the asphalt material located at the bottom of the storage tank upward.

[0011] As a preferred embodiment of the present invention, it also includes a lifting drive device, the main body of which is fixedly installed on the storage box, and its retractable output end is fixedly connected to the lifting and opening compartment door.

[0012] As a preferred embodiment of this utility model, it also includes a discharge guide plate installed on the support platform on the side near the lifting and opening compartment door. The discharge guide plate is provided with hook portions on both sides, and outwardly protruding hanging posts are provided on both sides of the support platform. The hook portions can be engaged with the hanging posts, so that the discharge guide plate can be rotatably connected and fixed to the support platform.

[0013] As a preferred embodiment of the present invention, a pair of opening and closing guide plates are also provided on the discharge guide plate. One end of the opening and closing guide plate near the storage box is hinged to the discharge guide plate, while the other end is movably connected to an external opening and closing drive device. The opening and closing guide plates on both sides can swing around their respective hinge center axis under the drive of the opening and closing drive device and change the distance between their outermost ends.

[0014] As a preferred embodiment of this utility model, several movable rollers are also installed at the bottom of the supporting platform.

[0015] In summary, this utility model can achieve the following beneficial effects:

[0016] The present invention provides a temporary asphalt material storage and moving device for highway expansion joint paving, which adds a stirring and mixing device to the interior of existing similar mobile devices. While maintaining the original local heating component structure, it can achieve uniform heating and temperature rise of all asphalt materials stored inside the device, ensuring high material fluidity and consistency of material properties in each part. This facilitates the overall adjustment of the performance of all asphalt materials by the workers, and also improves the quality of local road paving construction. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall internal structure layout of the temporary storage and moving device for asphalt materials used in the laying of highway expansion joints.

[0018] Figure 2 A schematic diagram of the independent structural layout of the discharge guide plate;

[0019] Figure 3 This is a partially enlarged schematic diagram illustrating the process of asphalt material being discharged from inside the device during construction.

[0020] In the picture:

[0021] 1—Supporting platform; 101—Insulation and heating unit; 102—Hanging column; 103—Moving and walking rollers;

[0022] 2—Storage box body, 201—Material filling port, 202—Lifting and opening door, 203—Inclined guide section;

[0023] 3—Agitation and mixing mechanism; 301—Rotary spindle; 302—Mixing drive device; 303—Helical blade;

[0024] 4—Lifting drive device;

[0025] 5—Discharge guide plate; 501—Hook part;

[0026] 6—Opening and closing guide plate, 601—Opening and closing drive device. Detailed Implementation

[0027] The following specific embodiments are merely explanations of this utility model and are not intended to limit it. After reading this specification, those skilled in the art can make modifications to these embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this utility model.

[0028] This solution is achieved through the following technical means:

[0029] Example: This application provides a temporary storage and moving device for asphalt materials used in the paving of highway expansion joints. It adds a stirring and mixing device to the interior of existing similar mobile devices. While maintaining the original local heating component structure, it can achieve uniform heating and temperature rise of all the asphalt materials stored inside the device, ensuring high fluidity of the materials and consistency of the properties of each part of the materials. This makes it easier for workers to make overall adjustments to the performance of all the asphalt materials, and at the same time improves the quality of local paving construction.

[0030] Specifically, the overall structure of the temporary storage and moving device for asphalt material used in highway expansion joint paving, as described in the embodiments of this application, can be found in the appendix to the specification. Figure 1 The structure shown will be used for explanation.

[0031] First, the device includes a support platform 1 at the bottom for mounting and supporting the component structure and asphalt material above it. A hollow storage tank 2 is mounted on the support platform 1; a material filling port 201 is provided at the top of the storage tank 2, and a lifting and opening door 202 is provided on the side of the storage tank 2. Inside the storage tank 2, an inclined guide section 203 is provided for guiding the asphalt material at the bottom towards the lifting and opening door 202. A heat preservation and heating unit 101 is provided at a lower position on the support platform 1 near the inclined guide section 203. A stirring and mixing mechanism 3 is also provided inside the storage tank 2 for lifting and moving the asphalt material at the bottom upwards.

[0032] Regarding the aforementioned tilting guide 203, please refer to the appendix of the instruction manual. Figure 1 As shown, its upper surface is an inclined or curved surface that gradually decreases from the far end towards the lifting and opening door 202. This allows the asphalt material, which needs to be moved short distances, to flow and collect towards the lower side of the storage box after being placed from a large freight vehicle into this temporary storage and moving device. A heat-insulating heating unit 101 is installed inside the supporting platform 1 near the lower part of the inclined guide 203 to heat and insulate the asphalt material stored inside the device. For example, the heat-insulating heating unit 101 can be an electric heating component, and the upper cover partition can be made of copper or aluminum alloy with good thermal conductivity. When powered on, the heat generated by the internal heating wire component can be conducted upwards, ensuring that the asphalt material remains within a certain constant temperature range and maintains strong fluidity, thereby achieving stable and efficient asphalt paving at local construction locations such as highway expansion joints.

[0033] The most significant inventive aspect of this application is the inclusion of a stirring and mixing mechanism 3 within the storage tank 2. Specifically, this mechanism 3 includes an inclined rotating shaft 301. The lower end of the rotating shaft 301 is positioned above the heat-insulating heating unit 101, while the higher end is connected to the output of a rotary motor, which serves as a mixing drive device 302, located at the upper part of the storage tank 2. A spiral blade 303 is also fixedly mounted on the rotating shaft 301. In this structure, the rotating shaft 301, driven by the mixing drive device 302, can rotate the spiral blade 303, causing the asphalt material at the bottom of the storage tank 2 to move upwards. This structural design is necessary because asphalt material has poor thermal conductivity. If only a flat, electrically heated structure is used to heat the bottom of the material, it is highly likely that a large temperature difference will occur between the bottom and upper layers of the asphalt material stored inside the device, resulting in inconsistent performance.

[0034] In the solution presented in this application, due to the inclusion of a stirring and mixing mechanism 3, when the rotary motor, which serves as the mixing drive device 302, operates, the asphalt material collected at the bottom is lifted upwards to the upper layer by the rotation of the spiral blades 303. Meanwhile, the asphalt material on both sides flows downwards for continuous filling, thus forming a stable and continuous flow cycle. Furthermore, with this structure, it is not necessary to lay an electric heating structure over a large area at the bottom of the device. Instead, only a small portion of the asphalt material at the very bottom of the cavity needs to be heated, and this is combined with the overall flow cycle of the material to achieve heating of all the materials within the device, significantly reducing the cost of equipment manufacturing and maintenance.

[0035] As a preferred structure of the asphalt material temporary storage and moving device given in this embodiment, a pneumatic telescopic cylinder or an electric push rod device can also be used as the lifting drive device 4. The main body of the lifting drive device 4 is fixedly installed on the storage box 2, and its telescopic output end is fixedly connected to the lifting and opening door 202. At this time, the lifting drive device 4 can be used to control the lifting and opening size of the lifting and opening door 202, thereby controlling the discharge speed of the asphalt material during local road paving construction. Of course, during road paving construction, the aforementioned rotary motor can also be driven to rotate in reverse, thereby driving the spiral blade 303 to rotate in reverse, thus providing an outward pushing effect on the asphalt material, so as to achieve rapid discharge in a short time according to the actual construction paving needs.

[0036] Furthermore, preferably, a discharge guide plate 5 can be installed on the supporting platform 1 on the side near the lifting and opening compartment door 202. (Refer to the attached instruction manual.) Figure 2As shown, the discharge guide plate 5 here includes a central plate body and hook portions 501 on both sides. Correspondingly, outwardly protruding hanging posts 102 are provided on both sides of the support platform 1. The hook portions 501 can be engaged with the hanging posts 102, allowing the discharge guide plate 5 to be rotatably connected and fixed to the support platform 1. At this time, the outer end of the discharge guide plate 5 installed on the support platform 1 can directly and tightly contact the area to be paved, thereby allowing the asphalt material flowing from the inside to the outside to flow more stably through the outwardly extending discharge guide plate 5 to the road surface, reducing the occurrence of uneven thickness of the asphalt material in some areas during the paving process. In addition, a pair of opening and closing guide plates 6 can also be provided on the discharge guide plate 5. The end of the opening and closing guide plate 6 near the storage box 2 is hinged to the discharge guide plate 5, while the other end is movably connected to the end of the push rod of the external telescopic support cylinder, which serves as the opening and closing drive device 601. Specifically, one end of the telescopic support cylinder is hinged to the aforementioned opening and closing guide plate 6, while the end of its push rod is also hinged to the outer side of the opening and closing guide plate 6. At this time, the opening and closing guide plates 6 on both sides can swing around their respective hinged central axes under the extension and retraction movement of the telescopic support cylinder, which serves as the opening and closing drive device 601. This allows for changing the distance between the outermost ends, ultimately enabling more accurate control and adjustment of the paving width of the asphalt material being discharged from the device, thus improving the adaptability of road construction under different scenarios and requirements.

[0037] Of course, in order to ensure the flexibility of the equipment's construction position during the asphalt paving process, several mobile rollers 103 can also be installed at the bottom of the supporting platform 1.

[0038] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A temporary storage and moving device for asphalt materials used in the laying of highway expansion joints, characterized in that: It includes a support platform (1) at the bottom and a hollow storage box (2) on the support platform (1); a material filling port (201) is provided at the top of the storage box (2), and a lifting and opening door (202) is provided on the side of the storage box (2); an inclined guide part (203) is provided inside the storage box (2) for guiding the bottom asphalt material to the lifting and opening door (202); a heat preservation and heating unit (101) is provided at a lower position on the support platform (1) near the inclined guide part (203); and a stirring and mixing mechanism (3) is also provided inside the storage box (2) for lifting and moving the bottom asphalt material upward.

2. The temporary storage and moving device for asphalt materials used in highway expansion joint paving according to claim 1, characterized in that: The stirring and mixing mechanism (3) includes a rotary spindle (301) arranged in an inclined manner. The lower end of the rotary spindle (301) is mounted above the heat preservation and heating unit (101), while the higher end is connected to the output end of the mixing drive device (302) located in the upper part of the storage box (2). A spiral blade (303) is also fixedly installed on the rotary spindle (301). The rotary spindle (301) can drive the spiral blade (303) to rotate under the drive of the mixing drive device (302) and drive the asphalt material located at the bottom of the storage box (2) to move upward.

3. The temporary storage and moving device for asphalt materials used in highway expansion joint paving according to claim 2, characterized in that: It also includes a lifting drive device (4), the main body of which is fixedly installed on the storage box (2), and its retractable output end is fixedly connected to the lifting and opening compartment door (202).

4. The temporary storage and moving device for asphalt materials used in highway expansion joint paving according to claim 3, characterized in that: It also includes a discharge guide plate (5) installed on the support platform (1) on the side of the lifting and opening compartment door (202). The discharge guide plate (5) is provided with hook parts (501) on both sides, and the support platform (1) is provided with outward protruding hanging posts (102) on both sides. The hook parts (501) can be locked onto the hanging posts (102), so that the discharge guide plate (5) can be rotatably connected and fixed on the support platform (1).

5. The temporary storage and moving device for asphalt material used in highway expansion joint paving according to claim 4, characterized in that: A pair of opening and closing guide plates (6) are also provided on the discharge guide plate (5). One end of the opening and closing guide plate (6) near the storage box (2) is hinged to the discharge guide plate (5), while the other end is movably connected to an external opening and closing drive device (601). The opening and closing guide plates (6) located on both sides can swing around their respective hinge center axis under the drive of the opening and closing drive device (601) and change the distance between their outermost ends.

6. The temporary storage and moving device for asphalt materials used in highway expansion joint paving according to claim 5, characterized in that: Several moving and walking rollers (103) are also installed at the bottom of the support platform (1).

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