Adjustable plastering tool for finishing a concrete surface

Abstract

Adaptable plastering tool for finishing a concrete surface, comprising a base form (1) and a support (2), characterized in that the support (2) is provided with at least three strip-shaped holes (31) on its circumference; the longitudinal direction of the strip-shaped holes (31) is provided in the thickness direction of the support (2); each of the strip-shaped holes (31) is provided with a roller (6) accordingly; the rotating shaft of the roller (6) is detachably connected to the strip-shaped hole (31); and the base form (1) is connected to the base of the support (2).

Description

Technical field

[0001] The utility model relates to the field of construction tools, in particular to an adaptable plastering tool for finishing a concrete surface. State of the art

[0002] In engineering, concrete structures are often cast using formwork and are typically equipped with a side mold and / or a base mold. The upper part usually serves as the pouring opening. Finally, the upper part of the concrete must undergo surface treatment, such as the surface treatment of the top of the concrete in a road underpass, tunnel trench, basin, etc.

[0003] If the formwork height matches the height of the structure, the surface must be milled to match the formwork surface. Based on this, if there is a chamfer on the top of the structure, the entire surface must be finished, followed by the chamfering process for the compression molding. This involves many steps, and the smoothness of the chamfer depends on the worker's skill.

[0004] If the formwork height exceeds the height of the structure, we manually extend the plastering tool to the top and bottom of the formwork by pulling a wire to perform surface finishing. As a result, the finished surface is affected by human intervention, and the top surface is uneven and unsightly after the formwork is removed. Therefore, manual sanding is required again for final finishing.

[0005] Both of the above-mentioned methods require an additional work step, which increases working time and labor costs. Summary of the utility model

[0006] The purpose of the utility model is to provide an adaptable plastering tool for finishing a concrete surface in order to solve the problems existing in the previous technology, namely that an additional work step is required for surface finishing on the top of a concrete structure, which increases working time and labor costs.

[0007] To achieve the aforementioned goal, the utility model provides the following technical solution.

[0008] An adjustable plastering tool for finishing a concrete surface comprises a base form and a support. The support is provided around its circumference with at least three strip-shaped holes; the longitudinal direction of the strip-shaped holes runs in the thickness direction of the support; each of the strip-shaped holes is fitted with a roller; the rotating shaft of the roller is detachably connected to the strip-shaped hole; and the base form is connected to the underside of the support.

[0009] According to the adjustable plastering tool for finishing a concrete surface, as described in the utility model description, the height position of the roller can be adjusted along the longitudinal direction of the strip-shaped hole; that is, the relative height between the underside of the roller and the bottom surface of the formwork can be adjusted. When the underside of the roller and the bottom surface of the formwork are in the same plane, this is suitable for situations where the formwork height matches the height of the concrete structure. When the underside of the roller is higher than the bottom surface of the formwork, the formwork height is higher than the concrete structure. The surface of the concrete structure can be leveled in a single operation by the bottom surface of the formwork, even if a chamfer is required, thus reducing working time and costs.The plastering tool is simple in design, easy to use and effective.

[0010] As the preferred technical solution of the utility model, the roller includes a bearing that is connected to the strip-shaped hole by means of a screw.

[0011] The preferred technical solution of the utility model is a handle provided on the carrier so that a construction worker can easily hold the plastering tool by the handle.

[0012] As the preferred technical solution of the utility model, the base form consists of stainless steel and the support consists of a rigid plate construction.

[0013] The preferred technical solution of the utility model is that the base form is glued, welded, screwed or magnetically attached to the support.

[0014] As a preferred technical solution of the utility model, the carrier is provided with at least three ear plates around its circumference, each of which is vertically provided with the strip-shaped holes.

[0015] As a further preferred technical solution of the utility model, the ear plate and the carrier are joined by welding or the ear plate and the carrier are formed in one piece.

[0016] As a further preferred technical solution of the utility model, both the base shape and the support are rectangular and of uniform length and width.

[0017] As a further preferred technical solution of the utility model, at least two of the ear plates are provided on each longitudinal side of the carrier; and the axis of rotation of the rollers is axially perpendicular to the direction of the longitudinal side of the carrier.

[0018] As a further preferred technical solution of the utility model, both the base shape and the support are arc-shaped plates and have a uniform size to facilitate the processing of the surface of a ring-shaped or arc-shaped structure.

[0019] As a further preferred technical solution of the utility model, at least two of the ear plates are provided on each arcuate edge of the carrier; and the axis of rotation of the rollers is axially perpendicular to the tangential direction of the arcuate edges of the carrier.

[0020] In summary, the beneficial effects of the utility model due to the use of the aforementioned technical solution are as follows.

[0021] According to the adjustable concrete plastering tool of the utility model, the relative height between the underside of the roller and the base surface of the formwork can be adjusted. When the underside of the roller and the base surface are in the same plane, this is suitable for situations where the formwork height matches the height of the concrete structure. When the underside of the roller is higher than the base surface, the formwork height is higher than the concrete structure. The surface of the concrete structure can be leveled in a single operation using the base surface of the formwork, even if a chamfer is required, thus reducing labor and costs. The plastering tool is simple in design, easy to use, and effective. Brief description of the characters Fig. Figure 1 is a schematic front view of an adjustable plastering tool for finishing a concrete surface according to embodiment 1; Fig. Figure 2 is a schematic side view of the adjustable plastering tool for finishing a concrete surface according to embodiment 1; Fig. Figure 3 is a schematic top view of the adjustable plastering tool for finishing a concrete surface according to embodiment 1; Fig. Figure 4 is a schematic view I showing the use of the adjustable plastering tool for finishing a concrete surface according to embodiment 1; Fig. Figure 5 is a schematic view II showing the use of the adjustable plastering tool for finishing a concrete surface according to embodiment 1; Fig. 6 is a schematic top view of the adjustable plastering tool for finishing a concrete surface according to embodiment 2. Reference symbol:

[0022] 1 - Soil shape, 11 - Chamfer structure; 2 - Carriers; 3 - ear plate, 31 - strip-shaped hole; 4 bolts; 5 - Handle; 6 - roller; 7 - Formwork; 8 - Concrete structure. Detailed description

[0023] The utility model is described in more detail below with reference to the experimental embodiments and specific configurations. However, it should not be assumed that the scope of the subject matter of the utility model described above is limited to the following examples, and it is intended that the utility variant falls within the scope of the utility model.

[0024] In the description of specific embodiments of the utility model, the terms "top," "bottom," "left," "right," "middle," "inside," "outside," and the like, unless otherwise specified, refer to expressions based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship in which the product / device / equipment of the utility model is conventionally used. These orientation or positional relationship terms are used solely to facilitate the description of aspects of the utility model or to simplify the description of specific embodiments for the person skilled in the art, enabling them to quickly understand these aspects.They do not mean or imply that a particular device / part / element must have a particular orientation or be designed and operated in a particular positional relationship, and should therefore not be interpreted as a limitation of the utility model.

[0025] Furthermore, the presence of terms such as "horizontal," "vertical," "overhanging," "parallel," and the like does not mean that the respective device / component / element must be absolutely horizontal or vertical, overhanging, or parallel, but rather that it may be slightly inclined or offset. If "horizontal" merely means that its direction is more horizontal than "vertical," this does not mean that the structure must be completely horizontal, but rather that it may be slightly inclined. Alternatively, it can simply be assumed that the respective means / parts / elements arranged in "horizontal," "vertical," "overhanging," "parallel," etc., orientations may be arranged with an error / deviation of ±10%, preferably within ±8%, preferably within ±6%, preferably within ±5%, and preferably within ±4%, relative to the respective direction.As long as the relevant device / part / element is within the error / deviation range, its function can still be fulfilled with the solution of the utility model.

[0026] Furthermore, the terms “first”, “second”, “third” and the like are used in such expressions merely to distinguish between descriptions of the same or similar elements and are not to be interpreted as emphasizing or implying a relative importance of the respective element.

[0027] Furthermore, in the description of the embodiments of the utility model, "some," "a multitude," and "several" mean at least two. There can be 2, 3, 4, 5, 6, 7, 8, 9, etc., and there can be more than 9.

[0028] Furthermore, unless expressly stated / restricted / limited otherwise, the terms "provide," "fasten," "connect," "link," "provide with," "present," and "arrange" in the description of the technical solution of the utility model are to be understood in a broader sense. For example, it may be a permanent connection, a detachable connection, or an integral connection, and it may be a fastener commonly used in the trade, such as welding, riveting, bolting, screwing, etc. The connection may be a mechanical connection, an electrical connection, or a communication connection. They may be connected directly or indirectly via an intermediate medium, and the two elements may be in contact.

[0029] In similar techniques, when finishing the surface of a concrete structure, it's necessary to adjust the surface to match the formwork area if the formwork height matches the structure's height. Therefore, when creating a chamfer on the top of the structure, the entire surface finishing process must be carried out, followed by the final chamfering during the formwork pressing. This involves many steps, and the smoothness of the chamfer depends on the worker's skill. If the formwork height exceeds the structure's height, the trowel is manually extended to the top and bottom of the formwork, pulling a wire to achieve the desired surface finish. This manual intervention affects the final surface, resulting in an uneven and unsightly top surface after the formwork is removed.Therefore, manual grinding is required again for final processing. Both of the above-mentioned methods require an additional process, which increases operating time and labor costs. Accordingly, the technical solution of the present application is considered in conjunction with the... Fig. 1 and Fig. 6 explained. Example 1

[0030] As in the Fig. As shown in figures 1 to 5, the adaptable plastering tool for finishing a concrete surface of the utility model comprises a base form 1 and a support 2.

[0031] According to the principle of forming a plane through three points, the support 2 is provided with at least three strip-shaped holes 31 on its circumference; the longitudinal direction of the strip-shaped holes 31 runs in the thickness direction of the support 2; each of the strip-shaped holes 31 is accordingly provided with a roller 6; the rotating shaft of the roller 6 is detachably connected to the strip-shaped hole 31; and the bottom form 1 is connected to the bottom of the support 2.

[0032] In an alternative embodiment, as in the Fig. As shown in Figures 1-3, the support 2 has a rectangular rigid steel plate structure. At least two ear plates 3 are provided on each longitudinal side of the support 2. The ear plates 3 are arranged perpendicular to the support 2. The ear plates 3 and the support 2 are welded and joined, or the ear plates 3 and the support 2 are formed and arranged as a single piece. For example, the ear plates 3 are integrated with the support 2 and are located in one plane during manufacturing. The ear plates 3 are cold-rolled perpendicular to the support 2. The strip-shaped holes 31 are provided vertically on each of the ear plates 3, and the ear plates 3 are preferably provided at two ends of each longitudinal side. The axial direction of the rotating shaft of the roller 6 is perpendicular to the direction of the longitudinal side of the support 2, i.e., four rollers 6 are provided on the support 2.

[0033] In an alternative embodiment, as in the Fig. As shown in Figures 1-3, the base form 1 has a rectangular stainless steel structure, and the length and width of the base form 1 and the support 2 are identical. The base form 1 is bonded, welded, bolted, or magnetically attached to the support 2. The bonding and welding methods are easily understood. For bolting or magnetic attachment, a blind hole is provided on the surface of the base form 1, in which a magnet or screw head is firmly attached. The support 2 is attracted by the magnet, or the screw is inserted from bottom to top through the support 2 and secured with a nut.It should be noted that when using a magnetic fastening method, an additional limiting projection and a limiting groove must be provided between the base form 1 and the support 2 in order to limit the interaction and thus avoid the magnetic attraction and detachment caused by the shear force between the base form 1 and the support 2 when using the plastering tool.

[0034] In an alternative embodiment, as in the Fig. As shown in Figures 1 to 3, the roller 6 includes a bearing which is connected to the strip-shaped hole 31 by means of a screw 4 and is secured by means of a nut to fix the roller 6 in relation to the ear plate 3.

[0035] In an alternative embodiment, as in the Fig. As shown in Figures 1 to 3, the support 2 is equipped with a handle 5 with which a construction worker can hold the plastering tool.

[0036] In some alternative embodiments, at least one of the two longitudinal sides of the base form 1 is provided with a chamfer structure 11 in a configuration that meets the chamfer requirements of the concrete structure 8, such as a 45-degree chamfer or a curved chamfer or the like.

[0037] When used as described in Fig. 4 or Fig. As shown in Figure 5, the width of the base form 1 and the support 2 corresponds to the width of the concrete structure 8, thus determining the height difference between the height of the concrete structure 8 and the height of the formwork 7.

[0038] Fig. Figure 4 illustrates the case where the height of the formwork 7 matches the height of the concrete structure 8. In this case, the bolt 4 is loosened, and its position in the strip-shaped hole 31 is adjusted so that the bottom of the roller 6 and the underside of the base form 1 are in the same plane. The bolt 4 is then tightened. The roller 6 is placed on the top of the formwork 7, the underside of the base form 1 is aligned with the top of the concrete structure 8, and a construction worker moves the support 2 along the top of the formwork 7 using the handle 5. This allows the top of the concrete structure 8 to be finished and leveled over the base form 1. If the concrete structure 8 needs to be chamfered, the corresponding base form 1 is equipped with the chamfering element 11. The chamfering element 11 is inserted into the concrete structure 8 when the roller 6 is placed on the surface of the formwork 7.The underside of the base form 1 remains flush with the surface of the formwork 7. The chamfer of the concrete structure 8 is formed directly while the plastering tool performs the surface treatment, without the need to first perform the surface treatment integrally and then a compression molding chamfer as in the prior art, which reduces the construction steps and improves the efficiency of the construction.

[0039] Fig. Figure 5 shows the case where the height of the formwork (7) is higher than the height of the concrete structure (8). This is in comparison to the case in... Fig. 4. Only the underside of the roller 6 needs to be adjusted so that it is higher than the underside of the base form 1, and the height difference corresponds to the height difference between the formwork 7 and the structure of the concrete structure 8, so that the base form 1 can be inserted into the formwork 7 to carry out surface treatment on the structure of the concrete structure 8 without, as in the prior art, manually pulling wires and manually inserting a plastering tool into the top and bottom of the formwork 7 to carry out surface treatment.

[0040] According to the adjustable concrete plastering tool of the utility model, the height position of the roller 6 can be adjusted along the longitudinal direction of the strip-shaped hole 31; that is, the relative height between the underside of the roller 6 and the underside of the base form 1 can be adjusted. When the underside of the roller 6 and the underside of the base form 1 are in the same plane, this is suitable for situations where the height of the formwork 7 matches the height of the concrete structure 8. If the underside of the roller 6 is higher than the underside of the base form 1, the height of the formwork 7 will be higher than the height of the concrete structure 8. The surface of the concrete structure 8 can be leveled in a single operation by the underside of the base form 1, even if a chamfer is required, thus reducing working time and costs. The plastering tool is simple in design, easy to use, and effective. Example 2

[0041] As in Fig. As shown in Figure 6, the adaptable plastering tool for finishing a concrete surface of the utility model differs from that of embodiment 1 in that in this embodiment the base form 1 and the support 2 are both arc-shaped plates and have the same size to facilitate the surface finishing of an annular or arc-shaped structure.

[0042] In an alternative embodiment, at least two of the ear plates 3 are provided on each arcuate edge of the support 2, and preferably the ear plates 3 are provided at two ends of each arcuate edge. The axial direction of the shaft of the roller 6 is perpendicular to the tangential direction of the arcuate edge of the support 2, i.e., the roller can move along the surface of the arcuate formwork 7 in the direction of an arrow. Fig. 6 shown.

[0043] The foregoing description is merely a preferred embodiment of the utility model and is not intended to limit the scope of the utility model. All modifications, equivalents, and improvements that are consistent with the principles of the utility model are to be included within its scope.

[0044] The utility model relates to the field of construction tools and, in particular, to an adjustable plastering tool for finishing a concrete surface, comprising a base mold and a support. The support is provided with at least three strip-shaped holes around its circumference; the longitudinal direction of the strip-shaped holes runs in the thickness direction of the support; each of the strip-shaped holes is equipped with a corresponding roller; the rotating shaft of the roller is detachably connected to the strip-shaped hole; and the base mold is connected to the base of the support. The height position of the roller of the utility model can be adjusted along the longitudinal direction of the strip-shaped hole. That is, the relative height between the underside of the roller and the underside of the base mold can be adjusted.When the underside of the roller and the base of the formwork are in the same plane, this is suitable for situations where the formwork height matches the height of the concrete structure. If the underside of the roller is higher than the base of the formwork, the formwork height will be higher than the concrete structure. The surface of the concrete structure can be leveled in a single operation using the base of the formwork, even if a chamfer is required, thus reducing labor and costs. The plastering tool is simple in design, easy to use, and highly effective.

Claims

[1] Adaptable plastering tool for finishing a concrete surface, comprising a base form (1) and a support (2), characterized by , that the support (2) is provided with at least three strip-shaped holes (31) on its circumference; the longitudinal direction of the strip-shaped holes (31) is provided in the thickness direction of the support (2); each of the strip-shaped holes (31) is provided with a roller (6) accordingly; the rotating shaft of the roller (6) is detachably connected to the strip-shaped hole (31); and the bottom form (1) is connected to the bottom of the support (2). [2] Adaptable plastering tool for finishing a concrete surface according to claim 1, characterized by , that the roller (6) includes a bearing which is connected to the strip-shaped hole (31) by means of a screw (4). [3] Adaptable plastering tool for finishing a concrete surface according to claim 1, characterized by , that the carrier (2) is provided with a handle (5). [4] Adaptable plastering tool for finishing a concrete surface according to claim 1, characterized by , that the base form (1) is made of stainless steel and the support (2) is made of a rigid plate. [5] Adaptable plastering tool for finishing a concrete surface according to claim 1, characterized by that the base form (1) is glued, welded, screwed or magnetically attached to the support (2). [6] Adaptable plastering tool for finishing a concrete surface according to any one of claims 1 to 5, characterized by , that the carrier (2) is provided with at least three ear plates (3) around its circumference and each of the ear plates (3) is provided vertically with strip-shaped holes (31). [7] Adaptable plastering tool for finishing a concrete surface according to claim 6, characterized by , that both the base shape (1) and the support (2) are rectangular and have a uniform length and width. [8] Adaptable plastering tool for finishing a concrete surface according to claim 7, characterized by , that at least two of the ear plates (3) are provided on each longitudinal side of the support (2); and the axis of rotation of the rollers (6) is axially perpendicular to the direction of the longitudinal side of the support (2). [9] Adaptable plastering tool for finishing a concrete surface according to claim 6, characterized by , that both the base shape (1) and the support (2) are arc-shaped plates and have a uniform size. [10] Adaptable plastering tool for finishing a concrete surface according to claim 9, characterized by , that at least two of the ear plates (3) are provided on each arcuate edge of the carrier (2); and the axis of rotation of the rollers (6) is axially perpendicular to the tangential direction of the arcuate edges of the carrier (2).

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