Device for laying a membrane for curing concrete

Abstract

Device for laying a membrane for curing concrete, characterized by: a handle (1), two fork arms (2) being connected to the handle (1); a spool (3), both ends of the spool (3) being connected between two of the fork arms (2), the spool (3) being configured to attach a membrane roller (4); a first roller (7), both ends of the first roller (7) being connected to the ends of the two fork arms (2); a cutting element (5), both ends of the cutting element (5) being connected between the two fork arms (2); the cutting element (5) being arranged between the spool (3) and the first roller (7); a second roller (6), both ends of the second roller (6) being connected to the two fork arms (2) so as to be displaceable in the axial direction of the fork arm (2); the second roller (6) being arranged between the spool (3) and the first roller (7); the second roller (6) approaching or moving away from the cutting element (5); and the membrane (8) being cut off by the contact of the second roller (6) with the cutting element (5).

Description

Technical field

[0001] The present utility model relates to the technical field of concrete construction and in particular to a device for laying a membrane for curing concrete. State of the art

[0002] With the rapid development of the modern construction industry, the demands on the quality and efficiency of concrete construction are also increasing. As one of the most fundamental and important materials in construction, the strength, durability, and aesthetic quality of concrete are directly related to the safety and service life of the entire structure. Therefore, effective curing after concreting is particularly important, and as an economical and widely used curing method, the technical innovation and optimization of membrane coatings have become the focus of the industry.

[0003] Although bending round steel bars into a triangular structure to support membrane installation has been somewhat facilitated at present, this technology still has some limitations in practical application. With the existing technology, the membrane needs to be manually cut at certain points with knives or scissors. This does not allow for easy and quick cutting of the membrane, resulting in inefficient installation. Since the installation of the membrane depends entirely on the manual triangular traction device, the membrane only rolls on the concrete surface in this traction mode, and it is difficult to ensure uniform tension of the membrane during the installation process. This leads to the membrane cannot adhere well to the concrete surface layer during the installation process, which affects the curing effect. Summary of the utility model

[0004] The purpose of the present utility model is to provide a device for laying a membrane for curing concrete by solving the problem of convenient and quick cutting of a membrane when a round steel is bent into a triangular structure to assist in laying the membrane in the prior art, resulting in low laying efficiency of the membrane.

[0005] The present utility model provides a device for laying a membrane for curing concrete, comprising: a handle to which two fork arms are connected; a spool, both ends of the spool connected between two of the fork arms, the spool configured to attach a diaphragm roller; a first roller, both ends of the first roller being connected to the ends of the two fork arms; the first roller being configured to press the membrane onto the concrete surface during the installation process; a cutting element, both ends of the cutting element being connected between the two fork arms; the cutting element is arranged between the spool and the first roller; a second roller, both ends of the second roller being slidably connected to the two fork arms in the axial direction of the fork arm; the second roller is arranged between the spool and the first roller; the second roller approaches or moves away from the cutting element; and the membrane is cut off by the contact of the second roller with the cutting element.

[0006] The present utility model application relates to a device for laying a membrane for curing concrete, wherein the handle is configured to pull the entire device when laying a membrane; the spool is configured to attach a membrane roll; the membrane is fed out of the membrane roll, passes through the area between the cutting element and the second roller, and continues to extend to the bottom of the first roller; and the membrane is then pressed onto the concrete surface by the gravity of the first roller. The second roller can be arranged close to the cutting element or away from it. When the membrane is to be cut, the second roller is brought close to the cutting element and the membrane is pressed between the second roller and the cutting element, i.e., the membrane can be cut at the position of the cutting element.The second roller is then moved further away from the cutting element to continue laying the membrane in the next stage. This process allows the membrane to be cut conveniently and quickly, improving the membrane's installation efficiency.

[0007] Preferably, the second roller is arranged between the cutting element and the first roller.

[0008] Preferably, the second roller is provided with a transmission component for moving the second roller. The transmission component improves the mobility of the second roller.

[0009] Preferably, the two fork arms are provided with a sliding slot in which both ends of the second roller are arranged, and the second roller approaches or moves away from the cutting element along the sliding slot.

[0010] Preferably, the transmission component is a cable, each of whose ends is connected to the two ends of the second pulley. This solution can establish the connection through one of the cables and move both ends of the second pulley synchronously by pulling the center of the cables to ensure synchronous movement of both ends of the second pulley.

[0011] Preferably, a spring is provided at one end of the sliding slot near the cutting element to enable the return of the second roller.

[0012] Preferably, both ends of the coil are detachably connected to the two fork arms. This solution facilitates the replacement of the membrane roll.

[0013] Preferably, the two fork arms are provided with a mounting groove that has an opening through which both ends of the coil can be inserted into or removed from the mounting groove. The detachable connection of the solution makes replacing the membrane coil more convenient.

[0014] Preferably, the cutting element is provided with a detachably connected ridge structure. The solution uses a ridge structure and the second roller to press the membrane, which can facilitate cutting the membrane. The ridge structure is a strip-shaped element arranged in the axial direction of the cutting element, wherein the strip-shaped element is provided with irregularly shaped ridges that can pierce the membrane under the action of pressure to tear it. The ridge structure is safer to handle than a blade because it avoids the risk of cuts from direct contact with the blade.

[0015] Preferably, a spot weld is provided between the burr structure and the cutting element. The burr structure can be easily removed after wear, and a new burr structure can be spot welded in place. This solution ensures a strong connection between the burr structure and also facilitates replacement.

[0016] Compared to the prior art, the present utility model offers the following advantages. 1. The present utility model relates to a device for laying a membrane for curing concrete. The membrane can be cut at the position of the cutting element by pressing the membrane between the second roller and the cutting element, allowing the membrane to be cut easily and quickly, improving the installation efficiency of the membrane. Brief description of the drawings Fig. 1 is a first structural schematic view of an apparatus for laying a membrane for curing concrete. Fig. Figure 2 is a second structural schematic view of the apparatus for laying a membrane for curing concrete. Fig. Figure 3 is an enlarged partial view of the position of a second roller of the apparatus for laying a membrane for curing concrete. Numbered reference symbols: 1 handle, 2 fork arms, 21 mounting groove, 22 sliding slot, 3 coil, 4 membrane roll, 5 cutting element, 6 second roll, 61 spring, 7 first role, 8 membrane, 9 Transmission component. Detailed description

[0017] The present utility model will be described in more detail below using specific embodiments. However, the scope of the above-described subject matter of the present utility model is not limited to the following examples, and the present utility model is intended to fall within the scope of the present utility model.

[0018] In the description of specific embodiments of the present utility model, the terms "top," "bottom," "left," "right," "center," "inside," "outside," and the like, when used, refer to any orientation or positional relationship unless otherwise specified, and are to be understood as 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 present utility model is conventionally used. These terms for orientation or positional relationship are merely intended to facilitate the description of aspects of the present utility model or to simplify the description of specific embodiments for those skilled in the art to quickly understand the aspects.They do not imply that a particular device / part / element must have a particular orientation or be constructed and operated in a particular positional relationship and are therefore not to be interpreted as a limitation of the present utility model.

[0019] Furthermore, the presence of the terms "horizontal," "vertical," "overhanging," "parallel," and the like does not imply that the respective device / component / element must be absolutely horizontal or vertical, or overhanging, or parallel, but that they may be slightly inclined or offset. Where "horizontal" simply means that the direction is more horizontal than "vertical," this does not mean that the structure must be completely horizontal, but that it may be slightly inclined. Alternatively, it can simply be assumed that the respective means / parts / elements arranged in a "horizontal," "vertical," "overhanging," "parallel" direction, etc., may be arranged with a deviation of ± 10%, preferably ± 8%, preferably ± 6%, preferably ± 5%, preferably ± 4% relative to the respective direction.As long as the corresponding device / part / element is within the error / deviation range, its function can continue to be fulfilled in the solution of the present utility model.

[0020] Furthermore, the terms “first,” “second,” “third,” and the like in such expressions are used merely to distinguish descriptions of the same or similar elements and are not intended to emphasize or imply any relative importance of the respective element.

[0021] In the description of the embodiments of the present utility model, "some," "a plurality," and "several" refer to at least two. It may be 2, 3, 4, 5, 6, 7, 8, 9, etc., and it may be more than 9.

[0022] Furthermore, in the description of the technical solution of the present utility model, unless expressly stated / restricted / limited otherwise, the terms "providing," "fastening," "connecting," "connected," "provided with," "laying," and "arranging" are to be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection, and it may be a connecting means commonly used in technology, such as welding, riveting, bolts, screws, 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 there may be communication between the two elements. Embodiment 1

[0023] As in the Fig. 1 to 3, a device for laying a membrane for curing concrete comprises a handle 1, a fork arm 2, a reel 3, a cutting element 5, a first roller 7 and a second roller 6.

[0024] Two fork arms 2 are connected to the handle 1.

[0025] Both ends of the roller 3 are connected between the two fork arms 2, wherein the spool 3 is designed to receive a membrane roller 4.

[0026] Both ends of the first roller 7 are connected to the ends of the two fork arms 2. The first roller 7 is used to roll forward during the installation process and to press the membrane 8 onto the concrete surface. The membrane 8 is in Fig. 2 not shown.

[0027] Both ends of the cutting element 5 are connected between the two fork arms 2, with the cutting element 5 located between the spool 3 and the first roller 7. The cutting element 5 can be provided with a blade, a sawtooth, or a burr structure for cutting the membrane 8.

[0028] Both ends of the second roller 6 are slidably connected to the two fork arms 2 in the axial direction of the fork arm 2; the second roller 6 is located between the spool 3 and the first roller 7; the second roller 6 approaches or moves away from the cutting element 5; and the membrane 8 is cut off by the contact of the second roller 6 with the cutting element 5.

[0029] The two ends of the second roller 6 are slidably connected to the two fork arms 2 in such a way that the two ends of the second roller 6 are provided with U-shaped blocks, the size of the U-shaped blocks corresponding to the size of the fork arms 2, and the fork arms 2 are arranged in the U-shaped blocks. The U-shaped blocks can slide along the longitudinal direction of the fork arms 2 within a certain range to achieve the purpose of sliding connection. The sliding connection can also be made such that the fork arm 2 is provided with a sliding slot 22, the two ends of the second roller 6 are provided with sliding blocks matching the sliding slot 22, and the sliding blocks can slide in the sliding slot 22 to achieve the sliding connection.

[0030] The cutting element 5 and the second roller 6 can be positioned relative to each other such that the second roller 6 is positioned between the cutting element 5 and the first roller 7. During use of the device, the second roller 6 can naturally descend under the influence of gravity, so that it is away from the cutting element 5. When the membrane 8 is to be cut, a force directed towards the cutting element 5 is exerted on the second roller 6 to bring it closer to the cutting element 5.

[0031] The positional relationship between the cutting element 5 and the second roller 6 can also be such that the cutting element 5 is located between the second roller 6 and the first roller 7. During use of the device, the second roller 6 is moved away from the cutting element 5 by applying a force directed away from the cutting element 5. When the membrane 8 is to be cut, the force exerted on the second roller 6 is released, whereupon the second roller 6 can approach the cutting element 5 under the influence of gravity.

[0032] In an alternative embodiment, the second roller 6 can be arranged between the cutting element 5 and the first roller 7. As in Fig. As shown in Figure 2, the coil 3, the cutting element 5, the second roller 6, and the first roller 7 are all arranged parallel to each other and in the order of coil 3, cutting element 5, second roller 6, and first roller 7 from top to bottom. In this embodiment, as shown in Fig. As shown in Figure 1, the membrane 8 is guided from the top of the membrane roll 4, passed through the area between the cutting element 5 and the second roll 6, further wound to the bottom of the second roll 6 and the first roll 7, and laid on the surface of the concrete. In this embodiment, the second roll 6 also has the function of tensioning the membrane 8.

[0033] In an alternative embodiment, the second roller 6 can be provided with a transmission component 9 that can move the second roller 6. The transmission component 9 can be a connecting rod, wherein one end of the connecting rod is rotatably connected to the second roller 6, and by pulling or pushing the other end of the connecting rod in the axial direction of the connecting rod, the second roller 6 can be moved. The transmission element 9 can also be a cable, a part of which is connected to the second roller 6, and by pulling the cable, the second roller 6 can be moved. It should be noted that the transmission element 9 in Fig. 1 is not shown.

[0034] In an alternative embodiment, the transmission element 9 can be a rope, each of whose ends are connected to both ends of the second pulley 6. The middle part of the rope is located near the handle 1, which facilitates pulling the rope.

[0035] In an alternative embodiment, two fork arms 2 can be provided with a sliding slot 22 in which the two ends of the second roller 6 are arranged. The second roller 6 can approach or move away from the cutting element 5 along the sliding slot 22.

[0036] In an alternative embodiment, a spring 61 is provided at one end of the slot 22 near the cutting element 5, the spring 61 enabling the return of the second roller 6. As shown in Fig.3, one end of the spring 61 is in contact with the second roller 6, and the other end of the spring 61 is connected to one end of the slot 22 near the cutting element 5. The second roller 6 is in its home position at the lower end of the slot 22. At this moment, the second roller 6 is not in contact with the cutting element 5. The spring 61, when pressed, can exert a force to return the second roller 6 to the home position. When a force is applied to the second roller 6 near the cutting element 5, the spring 61 is compressed. When the force applied to the second roller 6 ceases, the compressed spring 61 moves the second roller 6, together with the weight of the second roller 6, in a direction away from the cutting element 5, that is, it returns the second roller 6 to its home position.

[0037] In an alternative embodiment, both ends of the spool 3 and the two fork arms 2 can be detachably connected to each other. The detachable connection can be established by connecting the two ends of the spool 3 to the two fork arms 2 via a U-shaped snap fastener and a bolt. When the spool 3 needs to be disassembled, the U-shaped snap fastener is released and removed by loosening the bolt, so that the disassembly of the spool 3 can be completed. The detachable connection can also be established by providing the fork arms 2 with fastening grooves 21 in which the two ends of the spool 3 are placed.

[0038] In an alternative embodiment, the two fork arms 2 can be provided with a mounting groove 21, which can be provided with an opening through which both ends of the spool 3 can be inserted into or removed from the mounting groove 21. The opening of the mounting groove 21 is directed upwards, and the spool 3 is located at the bottom of the mounting groove 21 under the influence of gravity, effectively preventing the spool 3 from slipping out of the opening.

[0039] In an alternative embodiment, the cutting element 5 can be provided with a detachably connected ridge structure. The ridge structure is located on the surface of the cutting element 5 and is arranged axially along the cutting element 5. Disassembly and connection methods are diverse, for example, by connecting the ridge structure to the cutting element 5 by means of a fastening element, by connecting the ridge structure and the cutting element 5 in a bundled form by means of a connecting element, and by connecting the ridge structure and the cutting element 5 by spot welding.

[0040] In an alternative embodiment, the spot weld connection is provided between the burr structure and the cutting element 5. Both the burr structure and the cutting element 5 can be made of iron and can therefore be connected by welding. During spot welding, if the burr structure needs to be replaced, the old burr structure can be easily and quickly removed by striking the weld seam with a hammer or cutting the weld seam, and the new burr structure can then be reconnected by spot welding.

[0041] In an alternative embodiment, the first roller 7 may be a solid roller, which is a solid body with a certain weight.

[0042] In an alternative embodiment, the two fork arms 2 may comprise inclined sections and end sections, wherein the end sections on the two fork arms 2 are parallel to each other. The distance between the end sections of the fork arms 2 may be 800 mm to 1200 mm. In particular, the distance may be 800 mm, 900 mm, 1000 mm, 1100 mm, or 1200 mm.

[0043] The above description is merely a preferred embodiment of the utility model and is not intended to limit the utility model. All modifications, equivalents, and improvements within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

[0044] The present utility model relates to the technical field of concrete construction and, more particularly, to a device for laying a membrane for curing concrete, comprising a handle, a reel, a cutting element, a second roller, and a first roller. Two fork arms are connected to the handle. Both ends of the reel are connected between the two fork arms, the reel being configured to attach the membrane roller. Both ends of the first roller are connected to the ends of the two fork arms. Both ends of the cutting element are connected between the two fork arms, the cutting element being located between the reel and the first roller.Both ends of the second roller are slidably connected to the two fork arms in the axial direction of the fork arm. The second roller is located between the spool and the first roller; the second roller approaches or moves away from the cutting element; and the membrane is cut by the contact of the second roller with the cutting element. By approaching the second roller to the cutting element, the membrane can be cut at the position of the cutting element by compressing the membrane between the second roller and the cutting element, so that the membrane can be cut easily and quickly, and the laying efficiency of the membrane is improved.

Claims

[1] Device for laying a membrane for curing concrete, characterized by : a handle (1), two fork arms (2) being connected to the handle (1); a spool (3), both ends of the spool (3) being connected between two of the fork arms (2), the spool (3) being configured to attach a membrane roller (4); a first roller (7), both ends of the first roller (7) being connected to the ends of the two fork arms (2); a cutting element (5), both ends of the cutting element (5) being connected between the two fork arms (2); the cutting element (5) being arranged between the spool (3) and the first roller (7); a second roller (6), both ends of the second roller (6) being connected to the two fork arms (2) so as to be displaceable in the axial direction of the fork arm (2); the second roller (6) being arranged between the spool (3) and the first roller (7); the second roller (6) approaching or moving away from the cutting element (5); and the membrane (8) being cut off by the contact of the second roller (6) with the cutting element (5). [2] Device for laying a membrane for curing concrete according to claim 1, characterized by that the second roller (6) is arranged between the cutting element (5) and the first roller (7). [3] Device for laying a membrane for curing concrete according to claim 1, characterized by that the second roller (6) is provided with a transmission element (9) for moving the second roller (6). [4] Device for laying a membrane for curing concrete according to claim 2, characterized bythat the two fork arms (2) are provided with a sliding slot (22) in which both ends of the second roller (6) are arranged, and that the second roller (6) approaches or moves away from the cutting element (5) along the sliding slot (22). [5] Device for laying a membrane for curing concrete according to claim 3, characterized by that the transmission element (9) is a rope, the two ends of which are each connected to the two ends of the second pulley (6). [6] Device for laying a membrane for curing concrete according to claim 4, characterized by that at one end of the sliding slot (22) near the cutting element (5) a spring (61) is provided which enables the return of the second roller (6). [7] Device for laying a membrane for curing concrete according to one of claims 1 to 6, characterized by that both ends of the coil (3) are detachably connected to the two fork arms (2). [8] Device for laying a membrane for curing concrete according to claim 7, characterized by that the two fork arms (2) are provided with a fastening groove (21) which has an opening through which the two ends of the coil (3) can be inserted into or removed from the fastening groove (21). [9] Device for laying a membrane for curing concrete according to claim 7, characterized by that the cutting element (5) is provided with a detachably connected burr structure. [10] Apparatus for laying a membrane for curing concrete according to claim 9, characterized by that the spot weld connection is provided between the burr structure and the cutting element (5).

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