A dual-purpose flattening tool for manually paving asphalt pavement

Abstract

The utility model relates to a reversible leveling tool for manually paving asphalt pavement, which belongs to the field of auxiliary tools for municipal engineering operations. The reversible leveling tool for manually paving asphalt pavement comprises: an operating rod: one end of the operating rod is provided with a working part; the working part: the working part comprises a connecting plate, one end of the connecting plate extends to both sides with a leveling ruler and a screening ruler; the leveling ruler: the leveling ruler is a rectangular plate; the screening ruler: the screening ruler is a rectangular plate, one side of the screening ruler is provided with a serrated screening part. The use of the reversible leveling tool of the present application makes the asphalt pavement after manual paving smooth and solid, the joints between new and old roads are tight and smooth, and there is no material shortage, slag falling, water accumulation and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of municipal engineering construction, and specifically relates to an auxiliary tool used for paving, leveling and screening coarse and fine aggregates of asphalt mixture in the construction of artificial paving asphalt pavement. Background Art

[0002] In current municipal engineering, asphalt pavements of urban roads are mostly paved by machines (asphalt paver: suitable for asphalt pavements with large areas). The asphalt pavements paved by machines are flat, solid, smoothly connected with other structures, and free of material shortages, slag falling, water accumulation, etc.; while for the curved parts of level crossings with smaller areas, irregular shapes, and where the paving thickness cannot be accurately controlled during mechanical paving, manual paving is mostly used.

[0003] At present, manual paving of asphalt pavement mostly uses a shovel to spread the material, and then uses an iron rake to spread, level, and screen the coarse and fine aggregates. However, the inventors found the following defects in the prior art during the implementation of the embodiments of this application:

[0004] First, the iron rake has a poor leveling effect, resulting in poor asphalt surface flatness and local water accumulation; second, the iron rake has a poor effect in screening coarse and fine aggregates, and the asphalt surface after paving has more coarse aggregates, resulting in loose asphalt surface, lack of materials, and slag; finally, the iron rake has a poor effect on the treatment of joints, resulting in height differences at the joints. The above quality problems directly affect the overall quality of the asphalt pavement and reduce the performance and durability of the asphalt pavement. Summary of the invention

[0005] The purpose of the utility model is to solve the above problems existing in the existing auxiliary tools for manual asphalt pavement construction, and to provide a manual positive and negative leveling tool for paving asphalt pavement, so as to achieve the functions of paving, leveling and screening coarse and fine aggregates of asphalt mixture, so that the asphalt pavement after paving is flat and solid, the joints between new and old roads are tight and smooth, and there is no material shortage, slag falling, water accumulation, etc. At the same time, the positive and negative leveling tool can be used in both directions, one side is for paving and leveling, and the other side is for screening coarse and fine aggregates, which improves the construction efficiency and saves manpower.

[0006] To achieve the above purpose, the technical solution of the utility model is:

[0007] A tool for leveling an asphalt pavement manually and having both positive and negative uses, comprising:

[0008] Operating lever: One end of the operating lever is provided with a working part:

[0009] Working part: The working part includes a connecting plate, one end of which is extended to both sides with a leveling ruler and a screening ruler;

[0010] Leveling ruler: The leveling ruler is a rectangular plate;

[0011] Screening ruler: The screening ruler is a rectangular plate, and a serrated screening portion is provided on one side of the screening ruler.

[0012] That is, it is equivalent to the prior art using an iron rake to level and screen coarse and fine aggregates. The inventor designs a leveling plate for leveling, and its leveling effect is better than that of the existing iron rake. Secondly, by designing a serrated screening part to screen coarse and fine aggregates, its screening effect is further improved compared with the iron rake. Secondly, because leveling and screening coarse and fine aggregates are continuous operations, in order to further increase its convenience, the leveling plate and the serrated screening part are combined together to make it possible to realize the conversion of different processes more quickly, which not only improves the construction efficiency but also saves manpower.

[0013] Furthermore, the angle between the leveling ruler and the screening ruler and the connecting plate is 85-120°.

[0014] Preferably, the angle between the leveling ruler and the screening ruler and the connecting plate is 90°.

[0015] Furthermore, the working part is formed by splicing two L-shaped plates, one side of the L-shaped plate is provided with a serrated screening part, the side of the two L-shaped plates that are in contact with each other serves as a connecting plate, and the side provided with the serrated screening part is a screening ruler.

[0016] Preferably, the L-shaped plates are equilateral angle steels, and the L-shaped plates are connected by welding. The working parts are manufactured by equilateral angle steels, which saves mold opening costs, is strong and durable, and can significantly reduce the manufacturing cost of the device.

[0017] Furthermore, the tooth tip spacing of the serrated screening part is 20 mm, and the tooth depth is 30 mm. After many tests by the inventor, it is found that under these size parameters, the serrated screening part has the best effect in screening coarse and fine aggregates.

[0018] Furthermore, the length of the working part is 40-100 cm, and the length of the working part can be rotated automatically according to actual needs.

[0019] Preferably, the length of the working part is 50 cm, and a working part of this size can be used on most construction sites.

[0020] Furthermore, in order to facilitate operation, the operating rod is fixedly connected to the working part, the operating rod is a telescopic rod, one end of the operating rod is connected to a handle, and the operating rod is fixed on the connecting plate.

[0021] Furthermore, two oblique braces are fixedly connected between the operating rod and the working part, one end of the oblique brace is fixed on the operating rod, and the other end is fixed on the connecting plate. Beneficial Effects

[0022] The utility model provides a dual-purpose leveling tool for manually paving asphalt pavement. The tool has different paving functions for asphalt mixtures: paving, local leveling and detailed processing of joints of asphalt mixtures through a leveling ruler; and effectively screening coarse aggregate on the surface of asphalt through a screening ruler. Compared with the traditional iron rake, the use of the dual-purpose leveling tool of the present application makes the asphalt pavement after manual paving smooth and solid, and the joints between new and old roads are tight and smooth, without material shortage, slag falling, water accumulation and other phenomena. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a plan view of the utility model of the flattening tool with both positive and negative uses.

[0024] Figure 2 It is a schematic elevation view of the utility model of a forward and reverse dual-purpose flattening tool.

[0025] Figure 3 It is a cross-sectional schematic diagram of the utility model of the flattening tool with both positive and negative uses.

[0026] Figure 4 It is a partial plan view of the screening ruler of the utility model.

[0027] Figure 5 It is a partial cross-sectional schematic diagram of the leveling ruler of the utility model.

[0028] In the figure: 1. operating lever, 2. working part, 3. connecting plate, 4. leveling ruler, 5. screening ruler, 6. diagonal support.

[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0031] Embodiment 1: A tool for leveling an asphalt pavement manually, comprising:

[0032] Operating rod 1: The operating rod 1 is a galvanized steel pipe (specification: outer diameter 25mm, wall thickness 1.5mm), and one end of the operating rod 1 is provided with a working part 2;

[0033] Working part 2: The working part 2 includes a connecting plate 3, which is used to connect to the operating rod 1. One end of the connecting plate 3 extends to both sides with a leveling ruler 4 and a screening ruler 5. The working part 2 is spliced ​​by two L-shaped plates, and the L-shaped plate is an equilateral angle steel (specification: ∟40mm*40mm*3mm).

[0034] Cut two 50 cm long equilateral angle steels, one side of one equilateral angle steel is used as a leveling ruler 4, and one side of the other angle steel is cut into a serrated shape as a screening ruler 5, and the two equilateral angle steels are connected by welding;

[0035] Leveling ruler 4: the leveling ruler 4 is a rectangular plate;

[0036] Screening ruler 5: The screening ruler 5 is a rectangular plate, and a serrated screening part is provided on one side of the screening ruler. The tooth tip spacing of the serrated screening part is 20 mm, and the tooth depth is 30 mm. After many experiments by the inventor, it is found that under this size parameter, the serrated screening part has the best effect in screening coarse and fine aggregates.

[0037] Embodiment 2: In addition, the utility model further discloses the following technical solution based on the above embodiment; two diagonal braces 6 are fixedly connected between the operating rod 1 and the working part 2, and the diagonal brace 6 is an iron bar (specification: 20 mm wide, 1 mm thick), one end of the diagonal brace 6 is fixed on the operating rod 1, and the other end is fixed on the connecting plate 3.

[0038] In addition, as other options, the utility model also discloses the following technical solutions based on the above embodiments;

[0039] 1. The operating rod 1 is connected to the middle of the connecting plate 3 on the working part 2, and the connection method can be welding, threaded connection, etc.

[0040] 2. One end of the operating rod 1 is connected to a handle.

[0041] 3. The operating rod 11 may be a telescopic rod.

[0042] When making the tool, materials and machines for making the reversible flattening tool are selected. The materials include equilateral angle steel (specification: ∟40mm*40mm*3mm), galvanized steel pipe (specification: outer diameter 25mm, wall thickness 1.5mm) and iron bar (specification: width 20mm, thickness 1mm). The machines are electric welders and cutters. First, cut two 50cm long angle steels. One section of the angle steel is used as the 4 parts of the leveling ruler. One side of the other section of the angle steel is cut into a serrated shape with a tooth tip spacing of 20mm and a tooth depth of 30mm. Figure 2 The plane schematic diagram in the schematic diagram of the sieve ruler 5 is used as the sieve ruler 5 part after processing; secondly, a 2m long galvanized steel pipe is cut, and a slit is cut from the middle of one end of the galvanized steel pipe, with a slit width of 6mm and a slit length of 30mm, as the connection part with the connecting plate 3; finally, a 30cm long iron bar is cut as the diagonal brace 6 part;

[0043] Weld the various parts together with an electric welder: first, align one side of the leveling ruler 4 (3mm thick) and the unprocessed side of the screening ruler 5 (3mm thick), and weld them together with an electric welder; then, insert one end of the handle slit into the above-mentioned welding part (6mm thick), adjust the verticality and weld them together with an electric welder; finally, install the diagonal brace 6 and weld it.

[0044] During use, after the asphalt mixture is spread, the worker first spreads and levels the asphalt mixture according to the elevation point using the leveling ruler 4. After spreading and leveling a certain area, the worker uses the screening ruler 5 to screen out the coarse aggregate on the asphalt surface.

[0045] The above description is only a specific implementation method of the present utility model, but the protection scope of the present utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present utility model, which should be included in the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope of the claims.

Claims

1. A dual-purpose flattening tool for manually paving asphalt pavement, characterized in that: include: Operating lever: A working portion is provided at one end of the operating lever; Working part: The working part includes a connecting plate, one end of which is extended to both sides with a leveling ruler and a screening ruler; Leveling ruler: The leveling ruler is a rectangular plate; Screening ruler: The screening ruler is a rectangular plate, and a serrated screening portion is provided on one side of the screening ruler.

2. A reversible leveling tool for manually paving asphalt pavement according to claim 1, characterized in that: The angle between the leveling ruler and the screening ruler and the connecting plate is 85-120°.

3. The tool for leveling asphalt pavement manually according to claim 1 is characterized in that: The working part is formed by splicing two L-shaped plates, one side of the L-shaped plate is provided with a serrated screening part, the side of the two L-shaped plates that are in contact with each other is used as a connecting plate, and the side provided with the serrated screening part is a screening ruler.

4. A reversible flattening tool for manually paving asphalt pavement according to claim 3, characterized in that: The L-shaped plates are equilateral angle steels, and the L-shaped plates are connected by welding.

5. The tool for leveling asphalt pavement manually according to claim 1, characterized in that: The tooth tip spacing of the serrated screening part is 20 mm, and the tooth depth is 30 mm.

6. The tool for leveling asphalt pavement manually according to claim 1, characterized in that: The length of the working part is 40-100 cm.

7. The tool for leveling asphalt pavement manually according to claim 1, characterized in that: The operating rod is fixedly connected to the working part, the operating rod is a telescopic rod, and one end of the operating rod is connected to a handle.

8. The tool for leveling asphalt pavement manually according to claim 1, characterized in that: Two diagonal braces are fixedly connected between the operating rod and the working part.

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