Concrete film covering tool capable of achieving automatic cutting

Abstract

The utility model relates to the technical field of building construction tools, in particular to a concrete film covering tool capable of automatically cutting. The device comprises a supporting frame, a flat plate vibrator fixedly connected with the supporting frame and a film covering mechanism arranged on the supporting frame, and the film covering mechanism comprises a rotating shaft used for penetrating through a film coiled material barrel, a supporting rod rotationally connected to the end of the rotating shaft, a resistance wire assembly used for cutting a plastic film and an expansion assembly used for fixing the film coiled material barrel. The supporting rod is arranged on the supporting frame. According to the device, secondary compaction can be conducted on concrete while film covering is conducted; the device can automatically cut off the plastic film, and manual tearing by workers is not needed; according to the device, the thin film coiled material barrel and the rotating shaft can be connected together, the thin film coiled material barrel and the rotating shaft rotate synchronously, the thin film coiled material barrel rolls smoothly, and the situation that the thin film is damaged when the thin film coiled material barrel is pulled is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction tools, in particular to a concrete film covering tool which can be cut automatically. Background Art

[0002] Concrete curing is a key measure to ensure the quality and service life of concrete. It artificially creates certain humidity and temperature conditions so that the freshly poured concrete can harden normally and increase in strength.

[0003] At present, after the concrete pouring of construction projects is completed, it is necessary to cover the concrete surface with heat preservation and moisture maintenance. Plastic film is often used for maintenance in building construction projects. However, it is difficult to cut the plastic film short when it is laid to the edge of the structure. When workers disconnect the plastic film, they usually tear it off directly. This method is not easy to control the force, and it is easy to lift the laid film when disconnecting, thereby causing potholes on the concrete surface and reducing construction efficiency. In addition, the length of the film needs to be extended additionally, resulting in a waste of resources.

[0004] Chinese patent CN202322302918.9 discloses "A Moisturizing and Anti-drying Crack Concrete Film Laminating Machine", publication number CN220889567U, the device includes a vibration plate, a vibration motor and a handle, the lower end of the handle is rotatably connected to the vibration plate, the rear end of the vibration plate is symmetrically provided with a rotating shaft rotating on the vibration plate, and a hook arranged at one end of the outer side of the rotating shaft for hooking the film roller, the front end of the hook is provided with a second sleeve slidably connected to the rotating shaft, and the vibration plate is provided with a tension spring that pulls the hook to swing downward. However, the device has some defects: the device does not have a mechanism for cutting the plastic film, and requires staff to assist in disconnecting the plastic film, which reduces construction efficiency. Utility Model Content

[0005] In order to solve the above problems of the prior art, the utility model provides a concrete covering tool that can automatically cut, which can automatically cut off the plastic film after the plastic film is laid. There is no need for workers to manually cut off the plastic film. The operation is convenient and there is no extra waste.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a concrete film covering tool that can be automatically cut, comprising a support frame, a flat vibrator fixedly connected to the support frame, and a film covering mechanism arranged on the support frame, the film covering mechanism comprising a rotating shaft for passing through a film coil, a support rod rotatably connected to the end of the rotating shaft, a resistance wire assembly for cutting plastic film, and an expansion assembly for fixing the film coil, and the support rod is arranged on the support frame.

[0007] With the above structural design, after the concrete pouring is completed, the device can be operated to cover the film, and at the same time, the concrete can be vibrated for a second time.

[0008] Preferably, the resistance wire assembly includes a resistance wire and a first switch electrically connected to the resistance wire, the resistance wire is fixedly connected to a mounting frame, and the mounting frame is fixedly connected to a support frame.

[0009] With the above structural design, when the switch is turned on, the resistance wire is heated to melt the plastic film in contact with the resistance wire, and there is no need for the staff to manually disconnect it.

[0010] Preferably, a roller shaft is rotatably connected to the mounting frame.

[0011] By adopting the above structural design, the winding direction of the plastic film is changed so that the plastic film is close to the resistance wire and the ground.

[0012] Preferably, the expansion assembly includes a threaded barrel mounted on a rotating shaft through a thread, a sliding sleeve mounted on the threaded barrel, clamping rings symmetrically arranged at both ends of the sliding sleeve, a first scissor rod hinged on the sliding sleeve, a second scissor rod hinged to the first scissor rod in the middle, and a fixing ring hinged to the end of the second scissor rod, the clamping ring is fixedly connected to the threaded barrel, and the fixing ring is fixedly connected to the rotating shaft.

[0013] The above-mentioned structural design can quickly match the film roll drum and adapt to the inner diameter sizes of various film roll drums. When laying, the film roll drum is connected to the rotating shaft, and the film roll drum and the rotating shaft rotate synchronously, so that the film roll drum rolls smoothly and avoids damage to the film due to pulling the film roll drum.

[0014] Preferably, an auxiliary disc is fixedly connected to the threaded cylinder, and a plurality of anti-slip protrusions are fixedly connected to the outer peripheral wall of the auxiliary disc.

[0015] The above structural design can assist the staff to rotate the threaded barrel more easily.

[0016] Preferably, the support rod is slidably connected to the support frame, a positioning plate is fixedly connected to the support rod, a positioning bolt is passed through the positioning plate, and a through hole matching the positioning bolt is provided on the support frame.

[0017] The above structural design allows the rotating shaft to be disassembled, making it convenient for workers to replace and install the film coil drum.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1) This device can perform secondary compaction on concrete while coating.

[0020] 2) This device can automatically disconnect the plastic film without the need for staff to tear it off manually.

[0021] 3) The device can connect the film roll and the rotating shaft together, so that the film roll and the rotating shaft rotate synchronously, and the film roll rolls smoothly, avoiding damage to the film when pulling the film roll. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0024] Figure 3 For this utility model Figure 2 Schematic diagram of the structure of the middle BB section; DETAILED DESCRIPTION

[0025] See also Figure 1 , Figure 2 , Figure 3 The utility model provides a technical solution: a concrete film covering tool that can be automatically cut, comprising a support frame 1, a flat vibrator 2 fixedly connected to the support frame 1, and a film covering mechanism arranged on the support frame 1, wherein the film covering mechanism comprises a rotating shaft 31 for passing through a film coil, a supporting rod 32 rotatably connected to the end of the rotating shaft, a resistance wire assembly for cutting plastic film, and an expansion assembly for fixing the film coil, wherein the supporting rod 32 is arranged on the support frame 1.

[0026] A shaft sleeve is embedded on the support rod 32 to facilitate the installation of the rotating shaft 31 on the support rod 32 .

[0027] The support frame 1 is fixedly connected to the armrest 4, the flat plate vibrator 2 is electrically connected to the second switch, and the armrest 4 is fixedly connected to the second switch. With this structure, it is convenient for the staff to turn on or off the flat plate vibrator while pushing or pulling the device.

[0028] The resistance wire assembly includes a resistance wire 41 and a first switch 42 electrically connected to the resistance wire 41, the resistance wire 41 is fixedly connected to a mounting frame 43, the mounting frame 43 is fixedly connected to a support frame 1, and the second switch 42 is fixedly connected to an armrest 4, so that the staff can start or stop the resistance wire heating while pushing or pulling the device, thereby facilitating the staff to control the disconnection position of the plastic film.

[0029] The mounting frame 43 is rotatably connected to a roller shaft 44 , and the mounting frame 43 is arranged at a position close to the ground so that the plastic film can be close to the concrete surface to reduce air entry.

[0030] The expansion assembly includes a threaded barrel 51 threadedly sleeved on the rotating shaft 31, a sliding sleeve 52 sleeved on the threaded barrel 51, a clamping ring 53 symmetrically arranged at both ends of the sliding sleeve 52, a first scissor rod 54 hinged on the sliding sleeve 52, a second scissor rod 55 hinged to the first scissor rod 54 in the middle, and a fixing ring 56 hinged to the end of the second scissor rod 55. The clamping ring 53 is fixedly connected to the threaded barrel 51, and the fixing ring 56 is fixedly connected to the rotating shaft 31. The rotating shaft 31 is provided with external threads, and there are no external threads at both ends of the rotating shaft 31. The upper ends of the first scissor rod 54 and the second scissor rod 55 are both hinged to the fitting block 59, so that the first scissor rod 54 and the second scissor rod 55 can better resist the inner hole wall of the film coil.

[0031] The threaded cylinder 51 is fixedly connected to an auxiliary disc 57 , and a plurality of anti-slip protrusions are fixedly connected to an outer peripheral wall of the auxiliary disc 57 .

[0032] The support rod 32 is slidably connected to the support frame 1, and a positioning plate 37 is fixedly connected to the support rod 32. A positioning bolt 38 is passed through the positioning plate 37. A through hole matching the positioning bolt 38 is provided on the support frame 1, and the positioning plate 37 is L-shaped.

[0033] When the device is in use, the staff first removes the rotating shaft 31, sets the film coil drum on the rotating shaft 31, and then rotates the auxiliary disc 57. The rotation of the auxiliary disc 57 drives the threaded drum 51 to rotate. The threaded drum 51 moves to the left under the action of the thread. The sliding sleeve 52 slides on the threaded drum 51 while moving to the left. The first scissor rod 54 and the second scissor rod 55 approach each other and support the inner wall of the film coil drum. When the film coil drum is exhausted, the auxiliary disc 57 is rotated in the opposite direction. Since the retaining ring 53 clamps the sliding sleeve 52, the first scissor rod 54 and the second scissor rod 55 are away from each other and no longer support the film coil, so it can be disassembled, and then the rotating shaft is installed on the support rod 32, and then the support rod 32 is slid, and the positioning bolt 38 is used to pass through the positioning plate and the support frame 1; next, the staff pulls the free end of the plastic film to pass around the roller 44 and the resistance wire 41 and lay it on the concrete surface, presses the second switch, and the flat plate vibrator 2 is started. The staff pushes or pulls the device to coat the film. After the laying is completed, the staff presses the first switch 42, and the resistance wire 41 heats and fuses the plastic film, and the plastic film is disconnected to close.

[0034] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantial change of the technical content.

[0035] The present invention is described above with reference to the preferred embodiments, but the protection scope of the present invention is not limited thereto, and all technical solutions falling within the scope of the claims are within the protection scope of the present invention. Various improvements may be made to the present invention and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict.

Claims

1. A concrete film covering tool capable of automatic cutting, comprising a support frame (1), a plate vibrator (2) fixedly connected to the support frame (1), and a film covering mechanism arranged on the support frame (1), characterized in that: The laminating mechanism comprises a rotating shaft (31) for penetrating the film coil, a support rod (32) rotatably connected to the end of the rotating shaft, a resistance wire assembly for cutting the plastic film, and an expansion assembly for fixing the film coil, wherein the support rod (32) is arranged on the support frame (1).

2. The automatic cutting concrete covering tool according to claim 1, characterized in that: The resistance wire assembly comprises a resistance wire (41) and a first switch (42) electrically connected to the resistance wire (41); the resistance wire (41) is fixedly connected to a mounting frame (43); and the mounting frame (43) is fixedly connected to a support frame (1).

3. The automatic cutting concrete covering tool according to claim 2, characterized in that: The mounting frame (43) is rotatably connected to a roller shaft (44).

4. The automatic cutting concrete covering tool according to claim 1, characterized in that: The expansion assembly comprises a threaded barrel (51) threadably sleeved on a rotating shaft (31), a sliding sleeve (52) sleeved on the threaded barrel (51), clamping rings (53) symmetrically arranged at both ends of the sliding sleeve (52), a first scissor rod (54) hinged on the sliding sleeve (52), a second scissor rod (55) hinged to the first scissor rod (54) at the middle, and a fixing ring (56) hinged to the end of the second scissor rod (55), wherein the clamping ring (53) is fixedly connected to the threaded barrel (51), and the fixing ring (56) is fixedly connected to the rotating shaft (31).

5. The automatic cutting concrete covering tool according to claim 4, characterized in that: The threaded cylinder (51) is fixedly connected to an auxiliary disc (57), and a plurality of anti-slip protrusions are fixedly connected to the outer peripheral wall of the auxiliary disc (57).

6. The automatic cutting concrete film covering tool according to claim 1, characterized in that: The support rod (32) is slidably connected to the support frame (1), a positioning plate (37) is fixedly connected to the support rod (32), a positioning bolt (38) is passed through the positioning plate (37), and a through hole matching the positioning bolt (38) is provided on the support frame (1).

Images