Concrete hard shoulder crack pouring device suitable for highway engineering in remote areas

Abstract

The utility model provides a concrete hard shoulder crack pouring device suitable for highway engineering in remote areas, which is characterized in that wheels and handrails are respectively arranged at the front end and the rear end of a frame, and a hopper is arranged above the frame and is used for containing liquid asphalt; the heating mechanism is arranged in the middle of the frame and directly faces the bottom of the hopper to heat the liquid asphalt; the crack pouring pipe is located in front of the hopper and obliquely extends upwards, so that the outlet end of the crack pouring pipe is higher than the upper edge of the hopper. Compared with a traditional asphalt transport vehicle, the asphalt transport vehicle has the obvious advantages that transportation and heat preservation processes are greatly facilitated for hard shoulder construction of long-distance roads in remote areas, large mechanical equipment is not needed, construction is more convenient, and good construction operability is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of road construction, and particularly relates to a device for pouring joints of concrete hard shoulders of highway projects in remote areas. Background Technique

[0002] In remote areas, when using liquid asphalt to pour expansion joints of concrete hard shoulders of highway projects, due to the lack of materials, long transportation distances, and the great influence of temperature on the state of asphalt, it is necessary to ensure that the asphalt is always in a liquid state and does not solidify. Moreover, for a long highway, one expansion joint is set every 5 meters for the concrete hard shoulder. The hard shoulder is narrow and the working surface is small. If a hot asphalt loading truck is used to load hot asphalt, the heat preservation performance is poor and the asphalt cools down quickly, which is inconvenient for construction. If solid polysulfide rubber sealant is used for joint filling, the cost will increase significantly.

[0003] The main difficulties in pouring joints of concrete hard shoulders of highway projects in remote areas are mainly in the following two aspects:

[0004] (1) In terms of heat preservation: When using liquid asphalt for pouring joints of concrete hard shoulders of highway projects in remote areas, to ensure the construction state of asphalt, due to the too long transportation distance, the heat loss of asphalt is huge. If the temperature is too low, the asphalt will solidify and be discarded and cannot be used. At the same time, if the asphalt temperature does not meet the requirements, it will also affect the joint filling quality and cause later cracking. Therefore, the temperature of liquid asphalt is the key point and difficulty in ensuring the construction quality of joint filling.

[0005] (2) In terms of convenience

[0006] The length of highway project construction is at least a dozen kilometers and at most dozens of kilometers. If an asphalt loading truck is used for round-trip transportation, the transportation distance is too far and the heat loss is large, which is extremely inconvenient. At the same time, when constructing, it is necessary to pick up liquid asphalt from the rear faucet of the transport vehicle, and the joint filling is also extremely inconvenient, and it is easy to pour unevenly, resulting in missed pouring or over-pouring, causing the asphalt to overflow to the surface of the hard shoulder and polluting the hard shoulder concrete, and it is relatively difficult to clean up later.

[0007] Therefore, it is necessary to provide an improved technical solution to address the above deficiencies of the existing technology. Content of the Utility Model

[0008] The purpose of the utility model is to overcome the above deficiencies in the existing technology. The utility model provides a device for pouring joints of concrete hard shoulders of highway projects in remote areas.

[0009] To achieve the above purpose, the utility model provides the following technical solutions:

[0010] A device for pouring joints of concrete hard shoulders of highway projects in remote areas, comprising:

[0011] A vehicle frame, with wheels and handrails respectively provided at the front and rear ends of the vehicle frame. Above the vehicle frame, there is a hopper for holding liquid asphalt;

[0012] A heating mechanism, which is arranged in the middle of the vehicle frame and faces the bottom of the hopper to heat the liquid asphalt.

[0013] A caulking pipe, which is located in front of the hopper and extends obliquely upward, so that the outlet end of the caulking pipe is higher than the upper edge of the hopper.

[0014] Preferably, the heating mechanism includes a mounting groove and a heating groove. The hopper is made of metal. The mounting groove is located at the bottom of the hopper. One side of the mounting groove corresponding to the armrest is a draw-out opening. The heating groove is filled with a heat source and is assembled in the draw-out opening in a draw-out manner.

[0015] Preferably, the heat source in the heating groove is coal.

[0016] Preferably, the caulking pipe is correspondingly connected to the upper edge of the front wall of the hopper, and the front wall of the hopper is inclined forward to form a diversion surface corresponding to the caulking pipe.

[0017] Preferably, a top cover is provided in front of the hopper, and the length of the top cover in the front-rear direction of the vehicle frame is greater than the forward offset distance of the upper edge of the front wall of the hopper.

[0018] Preferably, the top cover is hinged to the upper edge of the front wall of the hopper.

[0019] Preferably, a scraper corresponding to the wheel is provided on the vehicle frame. The scraper is fixed on the vehicle frame along the direction parallel to the axial direction of the wheel and is close to the outer surface of the wheel.

[0020] Preferably, the outlet end of the caulking pipe is formed into a tip by cutting with a horizontal cutting surface.

[0021] Preferably, a bracket corresponding to the hopper is provided below the vehicle frame.

[0022] Beneficial effects: Compared with the traditional asphalt transport vehicle, the present utility model has obvious advantages. For the construction of the hard shoulder of long-distance roads in remote areas, it greatly facilitates the transportation and heat preservation process, eliminates the need for large-scale mechanical equipment, makes the construction more convenient, and has good construction operability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The schematic drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation of the present utility model. Among them:

[0024] Figure 1 It is a structural schematic diagram of the caulking device in the specific embodiment provided by the present utility model.

[0025] Figure 1Among them, 1. hopper; 2. crack filling pipe; 3. wheel; 4. heating tank; 5. bracket; 6. coal; 7. handrail; 8. liquid asphalt. Specific embodiments

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention belong to the scope of protection of the present invention.

[0027] In the description of the present invention, the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention rather than requiring the present invention to be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. The terms "connected" and "connected" used in the present invention should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be directly connected or indirectly connected through an intermediate component. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0028] The present invention will be described in detail below with reference to the drawings and in conjunction with embodiments. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0029] Highway projects in remote areas are as short as a dozen kilometers or as long as dozens of kilometers. At the same time, expansion joints of concrete hard shoulders are set every 5 meters, making heat preservation difficult and convenience poor. After considering these situations, the present invention designs a crack filling device for concrete hard shoulders of highway projects in remote areas to facilitate long-distance asphalt crack filling construction for hard shoulders. As Figure 1 shown, it includes a vehicle frame, a heating mechanism, and a crack filling pipe 2. The vehicle frame is a truss welded by metal round steel or square steel. Wheels 3 and a handrail 7 are respectively provided at the front and rear ends of the vehicle frame. The wheels 3 can be one or two, thus forming a wheelbarrow structure with different forms and application scenarios. In this application, in order to facilitate use in a relatively small space, the wheels 3 are designed to be one, thus forming a unicycle structure. A hopper 1 is provided above the vehicle frame. The hopper 1 is used to hold liquid asphalt. The hopper 1 and the vehicle frame are fixed by welding or bolts. When the cart is moving forward, the upper edge of the hopper 1 is on a horizontal or nearly horizontal plane. In the embodiments described in this application, the positional relationships between various structures are described based on the upper edge of the hopper 1 being in the horizontal direction.

[0030] The hopper 1 is located directly above the main frame and is adapted to the size of the vehicle frame body. The heating mechanism is arranged in the middle of the vehicle frame and faces the bottom of the hopper 1 to heat the liquid asphalt. By continuously heating with the underlying heating mechanism, the construction state of the liquid of the joint-filling asphalt is maintained, ensuring that the device can stop and fill at any time, greatly improving the construction quality and construction convenience. The joint-filling pipe 2 is located in front of the hopper 1 and extends obliquely upward, so that the outlet end of the joint-filling pipe 2 is higher than the upper edge of the hopper 1. When the vehicle frame is selected forward with the wheel 3 as the fulcrum, the joint-filling pipe 2 extends into the shoulder expansion joint, and at this time the liquid asphalt is poured into the shoulder expansion joint through the guidance of the joint-filling pipe 2, ensuring uniform pouring by using the joint-filling pipe 2.

[0031] In an alternative embodiment, the heating mechanism includes an installation groove and a heating groove 4. The installation groove is a metal groove with an open upper end and is fixed to the hopper 1 and the vehicle frame by welding or bolts. The hopper 1 is made of metal, preferably iron, so as to have high thermal conductivity and be able to conduct heat to the internal asphalt. The installation groove is located at the bottom of the hopper 1. On one side of the installation groove corresponding to the armrest 7 is a pull-out opening. The heating groove 4 is filled with a heat source and is assembled in the pull-out opening in a pull-out manner, so that the heat source can be replaced according to actual needs. The heat source in the heating groove 4 is coal 6, which has a low cost and is suitable for use in the field environment.

[0032] Furthermore, a heat-conducting member is provided inside the hopper 1. The heat-conducting member includes an iron plate adapted to the bottom of the hopper 1 and a plurality of heat-conducting rods arranged on the iron plate. The heat-conducting rods are iron rods, and the length of the heat-conducting rods is adapted to the depth of the hopper 1. The plurality of heat-conducting rods are arranged in an array on the iron plate, and the iron plate can be tightly attached to the bottom surface of the hopper 1 by bolts, so as to conduct heat into the asphalt interior and improve the heat utilization efficiency.

[0033] In an alternative embodiment, the joint-filling pipe 2 is correspondingly connected to the upper edge of the front wall of the hopper 1. The joint-filling pipe 2 is a metal pipe and is welded and fixed to the hopper 1. The front wall of the hopper 1 slopes forward to form a guiding surface corresponding to the joint-filling pipe 2. On the one hand, it makes the center of gravity of the hopper 1 forward for easy joint filling, and on the other hand, it also facilitates the asphalt to flow into the joint-filling pipe 2. The joint-filling pipe 2 and the hopper 1 can be coated with heat-insulating materials. A upper cover is provided in front of the hopper 1. The length of the upper cover in the front-back direction of the vehicle frame is greater than the forward offset distance of the upper edge of the front wall of the hopper 1, so that the asphalt will not be spilled when it is tilted forward. Further, the upper cover is hinged to the upper edge of the front wall of the hopper 1, and the non-hinged side of the hopper 1 is fixed by bolts, so as to tightly squeeze the upper end surface of the hopper 1, thereby realizing the detachable installation of the upper cover and facilitating the observation and cleaning of the interior of the hopper 1.

[0034] In an alternative embodiment, a scraping plate corresponding to the wheel 3 is provided on the vehicle frame. The scraping plate is fixed to the vehicle frame along the direction parallel to the axial direction of the wheel 3 and is close to the outer surface of the wheel 3, and is used to scrape off the cement blocks or asphalt blocks adhered to the outer surface of the wheel 3. The outlet end of the caulking pipe 2 forms a tip through the cutting of a horizontal cutting surface, which can accurately point to the pouring seal, improving the pouring accuracy.

[0035] A support 5 corresponding to the hopper 1 is provided below the vehicle frame. The support 5 can be of a U-shaped structure, located on both sides of the vehicle frame, and the two ends are fixed to the vehicle frame by welding. A flat placement surface is provided in the middle, so as to support the hopper 1 and keep it placed stably.

[0036] Furthermore, ventilation openings are provided on the side walls of the installation groove and the heating groove 4 to ensure sufficient oxygen supply during the combustion of the coal 6. Solid asphalt can be transported to the site, placed in a trolley, and no more than the guide pipe is added at one time, and then coal 6 is added to the heating box, and the coal 6 is ignited to melt the solid asphalt and keep it warm.

[0037] After reaching the designated position, align the caulking pipe 2 with the expansion joint of the concrete hard shoulder, and pour the heated liquid asphalt. This application has the characteristics of simple construction, good heat preservation performance, and high construction quality.

[0038] Taking the caulking of the hard shoulder of the S39 Ganqimaodu to Hailiutu Highway as an example, adopting the caulking construction method of the liquid asphalt 8 for the concrete hard shoulder of the present utility model, the construction period is saved by 10 days, the direct cost per linear meter is saved by 3 yuan, and the total construction cost saved for the whole line is about 306,000 yuan.

[0039] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model are within the scope of protection of the pending claims of the present utility model.

Claims

1. A concrete hard shoulder caulking device applicable to highway engineering in remote areas, characterized in that, Comprising: A frame, with wheels and handrails respectively provided at the front and rear ends of the frame. Above the frame, there is a hopper for containing liquid asphalt; A heating mechanism, which is arranged in the middle of the frame and faces the bottom of the hopper to heat the liquid asphalt; A caulking tube, which is located in front of the hopper and extends obliquely upward, making the outlet end of the caulking tube higher than the upper edge of the hopper.

2. The concrete hard shoulder caulking device for remote area highway engineering according to claim 1, characterized in that The heating mechanism includes an installation groove and a heating groove. The hopper is made of metal. The installation groove is located at the bottom of the hopper. On one side of the installation groove corresponding to the handrail is a draw opening, and the heating groove is filled with a heat source and is assembled in the draw opening in a drawable manner.

3. The concrete hard shoulder caulking device for remote area highway engineering according to claim 2, characterized in that, The heat source in the heating groove is coal.

4. The concrete hard shoulder joint filling device for remote area highway engineering according to claim 1, characterized in that, The caulking tube is correspondingly connected to the upper edge of the front wall of the hopper, and the front wall of the hopper slopes forward to form a guiding surface corresponding to the caulking tube.

5. The concrete hard shoulder caulking device for remote area highway engineering according to claim 4, characterized in that, A top cover is provided in front of the hopper, and the length of the top cover in the front-rear direction of the frame is greater than the forward offset distance of the upper edge of the front wall of the hopper.

6. The concrete hard shoulder caulking device for remote area highway engineering according to claim 5, characterized in that, The top cover is hinged to the upper edge of the front wall of the hopper.

7. The concrete hard shoulder caulking device for remote area highway engineering according to claim 1, characterized in that, A scraper corresponding to the wheel is provided on the frame. The scraper is fixed on the frame along the direction parallel to the axial direction of the wheel and is close to the outer surface of the wheel.

8. The concrete hard shoulder caulking device for remote area highway engineering according to claim 1, characterized in that, The outlet end of the caulking tube is formed into a tip by cutting with a horizontal cutting surface.

9. The concrete hard shoulder caulking device for remote area highway engineering according to claim 1, wherein, A support corresponding to the hopper is provided below the frame.

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