Asphalt paving shovel

Abstract

The utility model discloses an asphalt paving shovel. The shovel comprises a shovel plate, a shovel handle and a low-friction-coefficient material layer. Wherein a sleeve is arranged in the middle of the upper end of the shovel plate, and the lower end of the shovel handle is fixed in the sleeve; the front face and the back face of the shovel plate are each provided with a low-friction-coefficient material layer in an overlapped mode The asphalt paving spade provided by the utility model has the beneficial effects that the characteristics that the low-friction-coefficient material is not adhered to asphalt and can tolerate high temperature in the asphalt paving process are fully exerted, so that the asphalt can be quickly separated from the spade in the asphalt paving process by using the spade; besides, the shovel plate can be detached and replaced, the functional requirements of short-distance carrying, cleaning and shoveling, flat cutting and the like of the shovel in the asphalt paving process are met, the asphalt paving efficiency is improved, and certain economic benefits and social benefits are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of highway engineering construction tools, in particular to an asphalt paving shovel. Background Art

[0002] Asphalt plays an important role in highway engineering. It has many good properties, such as fluidity, thermal stability, long-lasting adhesion, elasticity, electrical insulation and water resistance, making it very suitable as a paving material. At the same time, the high adhesion of asphalt means that when using a shovel for asphalt paving, the asphalt material cannot fall off quickly with the shaking of the shovel, which greatly reduces the paving efficiency.

[0003] There are hidden dangers when dipping a shovel in oily lubricants to spread asphalt during construction. The oil on the road surface will cause the asphalt and aggregate to disperse. Under the dual effects of rain and traffic loads, the road surface will gradually develop pits, rutting and other defects, which will seriously affect the service life of the road surface. Some low-friction coefficient materials can withstand high temperatures and chemical corrosion, and at the same time have excellent lubrication properties and are not easy to bond with asphalt, making them ideal for laminated panels. However, their application on shovels has not yet been found. Summary of the invention

[0004] In order to solve the above problems, the purpose of the utility model is to provide an asphalt paving shovel.

[0005] In order to achieve the above-mentioned purpose, the asphalt paving shovel provided by the utility model includes a shovel plate, a shovel handle and a low friction coefficient material layer; wherein, a sleeve is provided in the middle of the upper end of the shovel plate, and the lower end of the shovel handle is fixed in the sleeve; a layer of low friction coefficient material is respectively overlapped on the front and back sides of the shovel plate.

[0006] The low friction coefficient material layer is made of any one of polytetrafluoroethylene (PTFE), polyurethane (PU) and polyethylene (PP) sheets with a thickness of 1-10 mm. It is adhered to the front and back faces of the shovel plate by gluing with epoxy resin glue or acrylic glue. The lower end is sloped and flush with or shorter than the lower end of the shovel plate. When it is shorter than the lower end of the shovel plate, the distance between the low friction coefficient material layer and the lower end of the shovel plate is less than one-fourth of the length of the shovel plate.

[0007] The shovel plate is made of iron plate or steel plate with a thickness of 1-1.5mm. At least two convex ribs extending along the length direction of the shovel plate are formed in the middle. The length of the convex ribs is greater than one-third of the length of the low-friction coefficient material layer and the width is 1-5cm. The depth of the convex ribs embedded in the low-friction coefficient material layer in front of the shovel plate is less than the thickness of the low-friction coefficient material layer, but greater than one-quarter of the thickness of the low-friction coefficient material layer.

[0008] The shape of the shovel plate is square, dustpan-shaped or curved plate-shaped; the opening of the curved plate-shaped shovel plate faces forward, the axial direction is arranged in the horizontal direction, and the two sides of the upper end are connected to the upper part of the sleeve by oblique ribs.

[0009] The shovel handle is made of a wooden rod or a metal pipe, and the lower end is connected to the sleeve by a thread or screw fixing method. When the screw is fixed, a screw hole is reserved on the upper side wall of the sleeve.

[0010] The asphalt paving shovel provided by the utility model has the following beneficial effects: it gives full play to the characteristics of the low friction coefficient material that does not adhere to the asphalt and can withstand the high temperature during the asphalt paving process, so that the asphalt can be quickly separated from the shovel during the asphalt paving process; in addition, the shovel plate is detachable and replaceable, which meets the functional requirements of the shovel in the asphalt paving process, such as short-distance transportation, cleaning and scraping, and leveling and cutting, thereby improving the asphalt paving efficiency and having certain economic and social benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The utility model is a three-dimensional diagram of the asphalt paving shovel provided by the utility model when a dustpan-shaped shovel plate is adopted.

[0012] Figure 2 for Figure 1 A transverse cross-sectional view of the upper shovel plate and the low friction coefficient material layer of an asphalt paving shovel is shown.

[0013] Figure 3 The utility model is a three-dimensional diagram of the asphalt paving shovel provided by the utility model when a curved shovel plate is used. DETAILED DESCRIPTION

[0014] The utility model is described in detail below with reference to the accompanying drawings and specific embodiments.

[0015] Example 1

[0016] like Figure 1 , Figure 2 As shown, the asphalt paving shovel provided in this embodiment includes a shovel plate 1, a shovel handle 2 and a low friction coefficient material layer 3; wherein, a sleeve 4 is provided in the middle of the upper end of the shovel plate 1, and the lower end of the shovel handle 2 is fixed in the sleeve 4; a layer of low friction coefficient material layer 3 is overlapped on the front and back surfaces of the shovel plate 1 respectively.

[0017] The low friction coefficient material layer 3 is made of polytetrafluoroethylene sheet with a thickness of 5 mm. It is glued to the front and back sides of the shovel plate 1 with epoxy resin glue. The lower end is sloped and shorter than the lower end of the shovel plate 1. The distance between the low friction coefficient material layer 3 and the lower end of the shovel plate 1 is one-fifth of the length of the shovel plate 1.

[0018] The shovel plate 1 is made of a dustpan-shaped steel plate with a thickness of 1.2 mm. Two convex ribs 5 are formed in the middle and extend along the length direction of the shovel plate 1. The length of the convex ribs 5 is half the length of the low-friction material layer 3 and the width is 3 cm. The depth of the convex ribs 5 embedded in the low-friction material layer 3 in front of the shovel plate 1 is half the thickness of the low-friction material layer 3.

[0019] The shovel handle 2 is made of metal pipe, and the lower end is connected to the sleeve 4 by threading.

[0020] Example 2

[0021] like Figure 3 As shown, the asphalt paving shovel provided in this embodiment includes a shovel plate 1, a shovel handle 2 and a low friction coefficient material layer 3; wherein, a sleeve 4 is provided in the middle of the upper end of the shovel plate 1, and the lower end of the shovel handle 2 is fixed in the sleeve 4; a layer of low friction coefficient material layer 3 is overlapped on the front and back surfaces of the shovel plate 1 respectively.

[0022] The low friction coefficient material layer 3 is made of polyethylene sheet with a thickness of 5 mm. It is glued to the front and back of the shovel plate 1 with acrylic glue. The lower end is sloped and shorter than the lower end of the shovel plate 1. The distance between the low friction coefficient material layer 3 and the lower end of the shovel plate 1 is one fifth of the length of the shovel plate 1.

[0023] The shovel plate 1 is made of a curved iron plate with an opening facing forward and an axial direction arranged in the horizontal direction. The two sides of the upper end are connected to the upper part of the sleeve 4 by oblique ribs 6 respectively, with a thickness of 1.2 mm. Four convex ribs 5 extending along the length direction of the shovel plate 1 are formed in the middle. The length of the convex rib 5 is half of the length of the low-friction material layer 3, and the width is 3 cm. The depth of the low-friction material layer 3 embedded in the front of the shovel plate 1 is half of the thickness of the low-friction material layer 3.

[0024] The shovel handle 2 is made of a wooden rod, and the lower end is connected to the sleeve 4 by screw fixing. At this time, a screw hole 7 is reserved on the upper side wall of the sleeve 4.

Claims

1. An asphalt paving shovel, characterized by: The asphalt paving shovel comprises a shovel plate (1), a shovel handle (2) and a low friction coefficient material layer (3); wherein a sleeve (4) is provided in the middle of the upper end of the shovel plate (1), and the lower end of the shovel handle (2) is fixed in the sleeve (4); and a layer of low friction coefficient material layer (3) is respectively overlapped on the front and rear surfaces of the shovel plate (1).

2. The asphalt paving shovel according to claim 1, characterized in that: The low friction coefficient material layer (3) is made of any one of polytetrafluoroethylene, polyurethane and polyethylene plates, with a thickness of 1-10 mm, and is adhered to the front and back surfaces of the spade plate (1) by gluing with epoxy resin glue or acrylic glue. The lower end is sloped and flush with the lower end of the spade plate (1) or shorter than the lower end of the spade plate (1). When it is shorter than the lower end of the spade plate (1), the distance between the low friction coefficient material layer (3) and the lower end of the spade plate (1) is less than one quarter of the length of the spade plate (1).

3. The asphalt paving shovel according to claim 1, characterized in that: The shovel plate (1) is made of an iron plate or a steel plate with a thickness of 1-1.5 mm. At least two convex ribs (5) extending along the length direction of the shovel plate (1) are formed in the middle. The length of the convex ribs (5) is greater than one-third of the length of the low-friction coefficient material layer (3) and the width is 1-5 cm. The depth of the convex ribs (5) embedded in the low-friction coefficient material layer (3) in front of the shovel plate (1) is less than the thickness of the low-friction coefficient material layer (3), but greater than one-quarter of the thickness of the low-friction coefficient material layer (3).

4. The asphalt paving shovel according to claim 1, characterized in that: The shovel plate (1) is in the shape of a square, a dustpan or a curved plate; the curved plate-shaped shovel plate (1) has its opening facing forward, is axially arranged in the horizontal direction, and has its upper ends connected to the upper part of the sleeve (4) at both sides by means of oblique ribs (6).

5. The asphalt paving shovel according to claim 1, characterized in that: The shovel handle (2) is made of a wooden rod or a metal pipe, and the lower end is connected to the sleeve (4) by means of a thread or a screw. When the screw is fixed, a screw hole (7) is reserved on the upper side wall of the sleeve (4).

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