Asphalt spill prevention heating apparatus

By designing a rotating sealing structure with an arc-shaped rod and a sealing cap, the problem of overflow in the asphalt heating device was solved, achieving safe and reliable asphalt heating and avoiding material waste and safety hazards.

CN224337501UActive Publication Date: 2026-06-09SHANGHAI QUNKANG ASPHALTUM TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI QUNKANG ASPHALTUM TECH CO LTD
Filing Date
2025-03-28
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing asphalt heating devices are prone to asphalt overflow after heating, resulting in material waste and potentially causing fires or safety accidents.

Method used

An asphalt spill prevention heating device was designed, which adopts an arc-shaped rod and a sealing cap structure. The rotation of the arc-shaped rod causes the sealing cap to converge and form a ring seal, which can adapt to different barrel opening sizes and prevent asphalt from spilling.

Benefits of technology

It effectively prevents asphalt from overflowing during the heating process, reduces the risk of fire and safety accidents, and improves heating efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224337501U_ABST
    Figure CN224337501U_ABST
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Abstract

The utility model relates to bitumen processing technical field, especially a kind of bitumen anti-overflow heating equipment;The utility model relates to base, cylinder, controller, electric heating coil, fixed ring, linkage ring, arc hole, arc rod, multiple sealing caps and handle;Base is used to bear the bucket of containing bitumen, cylinder is vertically arranged in base side, controller is set in the output end of cylinder, the top end of electric heating coil is connected with the bottom of controller and is lifted and lowered along with cylinder, fixed ring is fixed on the top of base, linkage ring is rotatably sleeved in the top of fixed ring, a group of arc holes are arranged on linkage ring with shrink tendency, the setting number of arc hole corresponds with arc rod, one end of arc rod is clamped on the surface of arc hole corresponding;The sealing cap designed in the utility model can be shrunk according to the size of the mouth of different material buckets, and is driven by arc rod to cage. Effectively prevent a large number of bitumen overflow in the heating process.
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Description

Technical Field

[0001] This utility model relates to the field of asphalt processing technology, and in particular to an asphalt overflow prevention heating device. Background Technology

[0002] An asphalt heater is a device used to heat and maintain the temperature of asphalt, commonly used in the production of asphalt concrete, road construction, asphalt coating, and other processes requiring asphalt heating. Asphalt itself is solid at room temperature and needs to be melted and maintained at a suitable temperature for construction. An asphalt heater can heat solid asphalt to the required flow state, making it sufficiently diluted for application or mixing. Asphalt heaters maintain a stable temperature, preventing asphalt from cooling and solidifying during transportation and construction. By controlling the temperature, the heating process is made uniform, preventing overheating or localized undercooling of the asphalt, ensuring asphalt quality and construction results. Heating via electric heating elements is suitable for small-scale construction or indoor heating. Electric heaters are typically temperature-controllable and easy to operate. Using fuel oil as a heat source is suitable for large construction sites. Its high heating efficiency makes it suitable for long-term heating and large-scale construction. Using a steam exchanger to transfer heat to the asphalt is used in applications requiring higher temperatures and longer heating times.

[0003] However, existing equipment often encounters the following problems during use:

[0004] Existing asphalt heating devices cause the asphalt to liquefy and boil after heating, leading to asphalt overflow. This not only wastes materials but is also difficult to clean up. In severe cases, the large-scale overflow of boiling asphalt can cause fires or other safety accidents. Utility Model Content

[0005] The main objective of this invention is to provide an asphalt overflow prevention heating device to effectively solve the problem mentioned in the background art where existing asphalt heating devices cause the asphalt to turn into a liquid and boil after heating, leading to asphalt overflow. This not only causes material waste, but in severe cases, the boiling and overflowing asphalt can cause fires or other safety accidents. The sealing cap designed in this invention can be adapted to different materials.

[0006] The size of the bucket's opening is controlled by a curved rod, causing it to contract and enclose, effectively preventing excessive asphalt overflow during heating.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is: an asphalt overflow prevention heating device, comprising:

[0008] A base for supporting a bucket containing asphalt; and a cylinder vertically mounted on the side of the base.

[0009] Controller, the controller being disposed at the output end of the cylinder;

[0010] An electric heating coil, the top end of which is connected to the bottom of the controller and moves up and down with the cylinder; a fixing ring, which is fixed above the base;

[0011] A linkage ring, which is rotatably fitted onto the top of the fixed ring;

[0012] An arc-shaped hole is provided, and a set of arc-shaped holes is arranged around the linkage ring in a contracting trend. The number of arc-shaped holes corresponds to the number of arc-shaped rods, and one end of the arc-shaped rod is correspondingly engaged with the surface of the arc-shaped hole.

[0013] Multiple sealing caps, each of which is hinged to the other end of the arc-shaped rod via the connecting rod;

[0014] The handle is fixed to the outside of the linkage ring and is used to drive the linkage ring to rotate. When the linkage ring rotates, the arc-shaped rod and the arc-shaped hole drive the sealing caps to converge towards the center to form an annular sealing structure.

[0015] The plurality of sealing caps are located below the arc-shaped rod.

[0016] The fixing ring is fixedly connected to the bottom surface of the controller via a support column.

[0017] The arc-shaped hole has an involute structure, and its radius of curvature decreases from the inlet end to the outlet end.

[0018] The sealing cover is an arc-shaped thin plate structure with a rubber sealing strip on its inner edge. When multiple sealing covers are brought together, the inner edge forms a complete circular sealing surface.

[0019] One end of each of the arc-shaped rods is slidably fitted with an arc-shaped hole via a sliding shaft. The electric heating coil has a spiral structure.

[0020] The base surface is provided with an annular positioning groove, the diameter of which matches the diameter of the bottom of the bucket.

[0021] Compared with existing technologies, the beneficial effects of this invention are: the sealing cap designed in this invention can retract and cover different container openings under the action of an arc-shaped rod. This effectively prevents excessive asphalt overflow during heating, reducing the risk of fires or other safety accidents caused by asphalt overflow. Attached Figure Description

[0022] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the specific embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof.

[0023] Figure 1 is a schematic diagram of the overall shape of this utility model.

[0024] Figure 2 is a schematic diagram of the structure of this utility model.

[0025] Figure 3 is a side view of this utility model.

[0026] The following are labeled in the diagram: 1. Base; 2. Cylinder; 3. Controller; 4. Electric heating coil; 5. Fixing ring; 6. Linkage ring; 7. Arc-shaped hole; 8. Arc-shaped rod; 9. Multiple sealing caps; 10. Handle. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "connect," "connect," and "setup" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, this can be understood according to the specific circumstances.

[0029] Understand the specific meaning of the above terms in this utility model.

[0030] As shown in Figures 1-3, this utility model provides an asphalt overflow prevention heating device, which includes a base 1, a cylinder 2, a controller 3, an electric heating coil 4, a fixing ring 5, a linkage ring 6, an arc-shaped hole 7, an arc-shaped rod 8, multiple sealing covers 9, and a handle 10.

[0031] Base 1 is used to support a bucket containing asphalt. The surface of base 1 has an annular positioning groove, whose vertical...

[0032] The base 1, with a diameter matching the bottom diameter of the bucket, serves to support the bucket containing asphalt, providing stable support. The annular positioning groove design ensures the bucket is placed more securely and prevents it from moving or tilting during use. The groove's diameter matches the bottom of the bucket to avoid instability during heating.

[0033] In this invention, cylinder 2 is vertically mounted on the side of base 1, and controller 3 is located at the output end of cylinder 2. Cylinder 2 is designed to control the lifting and lowering motion of electric heating coil 4. Through the vertical lifting force provided by cylinder 2, controller 3 can precisely drive electric heating coil 4 into the asphalt.

[0034] Heating is performed. The use of cylinder 2 ensures precise and flexible temperature control during heating, avoiding overheating or uneven heating.

[0035] In this invention, the top of the electric heating coil 4 is connected to the bottom of the controller 3 and moves up and down with the cylinder 2. The electric heating coil 4 has a spiral structure, which provides a larger heating surface area, ensuring uniform heating of the asphalt. The spiral shape facilitates heat conduction and diffusion, allowing the asphalt to be heated quickly and evenly, thereby improving heating efficiency. The fixing ring 5 is fixed above the base 1 and is fixedly connected to the bottom of the controller 3 via a support column. The linkage ring 6 is rotatably fitted onto the top of the fixing ring 5. A set of arc-shaped holes 7 is provided, arranged around the linkage ring 6.

[0036] The shape tends to contract upwards. The number of arc-shaped holes 7 corresponds to the number of arc-shaped rods 8, and one end of the arc-shaped rod 8 is correspondingly engaged on the surface of the arc-shaped hole 7. The arc-shaped hole 7 has an involute structure, and its radius of curvature extends from the inlet end to the outlet end.

[0037] The ends decrease, and one end of each arc-shaped rod 8 slides into the arc-shaped hole 7 through a sliding shaft.

[0038] In this invention, the arc-shaped hole 7 on the linkage ring 6 is designed to control the convergence of the sealing caps. The arc-shaped hole 7 is involute-shaped with a gradually decreasing radius of curvature, which smoothly guides the movement of the arc-shaped rod 8 as the linkage ring 6 rotates, causing the sealing caps to converge towards the center. Through this design, it is possible to achieve…

[0039] Precise and uniform sealing effect. The arc-shaped rod 8 achieves the convergence of the sealing caps through a sliding engagement with the arc-shaped hole 7. The sliding shaft design makes the movement of the arc-shaped rod 8 smoother, avoiding excessive friction or jamming. Through the sliding engagement, it is ensured that the movement of each sealing cap is synchronized, avoiding incomplete sealing caused by deviation.

[0040] In this invention, the fixing ring 5 provides support and stability. The connection between the support column and the controller 3 ensures the stability of the entire heating device, preventing shaking or displacement during operation. The fixing ring 5 is fixed to the base 1 via the support column, ensuring that the equipment structure will not cause accidents due to instability during heating.

[0041] In this invention, to accommodate different bucket lid diameters, multiple sealing caps 9 are respectively hinged to the other end of each arc-shaped rod 8 via connecting rods. The multiple sealing caps 9 are located below the arc-shaped rods 8. The sealing caps are arc-shaped thin plate structures with rubber sealing strips on their inner edges. When the multiple sealing caps 9 are brought together, their inner edges form a complete circle.

[0042] The sealing surface is shaped, and the handle 10 is fixed to the outside of the linkage ring 6. The handle 10 is used to drive the linkage ring 6 to rotate. When the linkage ring 6 rotates, the arc-shaped rod 8 and the arc-shaped hole 7 drive the sealing caps to converge towards the center to form an annular sealing structure. The main function of the sealing caps is to prevent asphalt from overflowing, and the rubber sealing strip on their inner edge further enhances the sealing effect. During the heating process, the sealing caps converge to form an annular sealing structure, effectively sealing the bucket opening and preventing asphalt from overflowing due to heating expansion or improper operation. The use of the rubber sealing strip increases the sealing performance and also provides a certain degree of elasticity to adapt to different bucket opening shapes.

[0043] It should be noted that the asphalt overflow prevention heating device designed in this utility model is used by placing a bucket containing the asphalt to be heated on the base 1, retracting the cylinder 2, and lowering the output end of the cylinder 2. The output end of the cylinder 2 drives the controller 3 at the top to press down, which in turn drives the electric heating coil 4 below. The electric heating coil 4 is lowered into the asphalt in the bucket for heating. Before heating, to prevent asphalt overflow, the handle 10 is rotated by hand. The handle 10 drives the linkage ring 6 to rotate on top of the fixed ring 5. One end of each arc-shaped rod 8 on the linkage ring 6 slides in the arc-shaped hole 7 with a contraction trend. The other end of the arc-shaped rod 8 contracts inward, driving the sealing cap at the bottom. The sealing caps corresponding to each arc-shaped rod 8 gradually contract to form a circle, clamping the mouth of the bucket. During the subsequent heating of the asphalt by the electric heating coil 4, the overflowing asphalt will be blocked by the sealing cap, avoiding the problem of large-scale asphalt overflow.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations may be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An asphalt overflow prevention heating device, characterized in that, include: The base (1) is used to support a bucket containing asphalt; Cylinder (2), the cylinder (2) is vertically arranged on the side of the base (1), Controller (3), the controller (3) is located at the output end of the cylinder (2); The top of the electric heating coil (4) is connected to the bottom of the controller (3). And rises and falls with the cylinder (2); A fixing ring (5) is fixed above the base (1); Linkage ring (6), which is rotatably sleeved on the top of the fixed ring (5); An arc-shaped hole (7) is provided in a set, and the set of arc-shaped holes (7) is arranged around the linkage ring (6) in a contracting trend. The number of arc-shaped holes (7) is the same as that of the arc-shaped rod (8). Correspondingly, one end of the arc-shaped rod (8) is correspondingly snapped onto the surface of the arc-shaped hole (7); Multiple sealing caps (9), each of which is connected to a specific type of sealing cap via a connecting rod. The other end of the curved rod (8) is hinged; A handle (10) is fixed to the outside of the linkage ring (6). The handle (10) is used to drive the linkage ring (6) to rotate. When the linkage ring (6) rotates, it is connected to the arc-shaped rod (8). The cooperation of the arc-shaped hole (7) drives each sealing cover to converge towards the center to form an annular sealing structure.

2. The asphalt overflow prevention heating device according to claim 1, characterized in that, The plurality of sealing caps (9) are located below the arc-shaped rod (8).

3. The asphalt overflow prevention heating device according to claim 1, characterized in that, The fixing ring (5) is fixedly connected to the bottom surface of the controller (3) through the support column.

4. The asphalt overflow prevention heating device according to claim 1, characterized in that, The arc-shaped hole (7) has an involute structure with its radius of curvature decreasing from the inlet end to the outlet end.

5. The asphalt overflow prevention heating device according to claim 1, characterized in that, The sealing cover is an arc-shaped thin plate structure with a rubber sealing strip on its inner edge. When multiple sealing covers (9) are brought together, the inner edge forms a complete circular sealing surface.

6. The asphalt overflow prevention heating device according to claim 1, characterized in that, One end of each of the arc-shaped rods (8) is slidably fitted with the arc-shaped hole (7) through a sliding shaft.

7. The asphalt overflow prevention heating device according to claim 1, characterized in that, The electric heating coil (4) has a spiral structure.

8. The asphalt overflow prevention heating device according to claim 1, characterized in that, The base (1) has an annular positioning groove on its surface, the diameter of which matches the diameter of the bottom of the bucket.