JP3032536U - Temporary stopcock for concrete floor opening - Google Patents

Abstract

(57) [Summary] (Correction) [Problem] To provide a temporary stopper for temporarily sealing a piping opening provided in a concrete floor of a building under construction until the start of piping work. SOLUTION: A temporary stopper for a concrete floor opening has a sufficient size to cover the opening for piping and has a reinforcing iron plate 1 inside.
6, an upper support plate 11 in which 6 is embedded, a cylindrical side wall 12 protruding downward from the lower surface of the upper support plate 11 and having an outer diameter adapted to the inner diameter of the opening, and a lower end portion 1 of the cylindrical side wall 12.
Temporary stopper for concrete floor opening made of an elastic material integrally formed with a lower closing plate 13 having a hose connection port 14 protruding downward from the center of the lower surface and having an outer diameter adapted to the inner diameter of the opening. The upper support plate 11 and the reinforcing iron plate 16 can be V-cut so that a cut 18 having a desired size can be obtained, and the water flowing into the inside is connected to the hose connection port 14. It is designed to be discharged to the outside through a hose.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a temporary stopcock for temporarily sealing an opening for piping provided on a concrete floor of a building under construction until the start of piping work.

[0002]

[Prior art]

 In a reinforced concrete building under construction, many openings for various pipes and wiring are provided in advance on the floors, walls, etc. where concrete is poured. These openings range in diameter from a few centimeters to a few tens of centimeters, and the number is usually hundreds to thousands, depending on the size of the building. Due to these openings, rainwater from the upper floors will flow into the lower floors in the event of rain, and water will accumulate on the floors and interfere with the construction. There is also a risk that construction materials, tools, or workers may fall downstairs through these openings. Therefore, in order to prevent rainwater from falling due to such openings provided on the floor and to prevent danger to workers, conventionally, the openings are covered with a plywood that is larger than the openings, and the area around the plywood and the floor surface are covered. I was fixing it with duct tape. However, it is difficult to seal the opening in a watertight manner with such a veneer board and gum tape, and if water is accumulated on the floor of the upper floor, water will enter through the gap between the veneer board and the floor surface. Water will fall from the opening to the lower floor, and water will collect again on the lower floor. Also, depending on the strength of the plywood, there is a risk that it will be damaged by the impact of heavy construction materials, tools, etc., or that a worker may step on it. Furthermore, the work of attaching the cover of the plywood board to the multiple openings of different sizes with the duct tape and removing it at the time of piping requires not only a lot of manpower and time but is complicated, and the efficiency of the construction work is also increased. It was a significant inhibition.

The “temporary stopper for concrete floor opening” of Japanese Utility Model Laid-Open No. 4-26591 was filed by the present applicant in order to solve the above-mentioned conventional problems. FIG. 4 shows a conventional temporary stopper described in the publication, (A) is a vertical sectional front view, (B) is a plan view of (A), and FIG. 4 shows concrete. An upper support plate 1 of a sufficient size to cover the piping opening provided on the floor, and a circle of an elastic material that projects downward from the lower surface of the upper support plate 1 and has an outer diameter that matches the inner diameter of the opening. It is composed of a tubular side wall 2. In addition, 3 is an iron plate for reinforcement, 4 is a ridge. However, the publication still has the following problems. a. Considering the aging society, modern condominiums often use a concrete skeleton to make the floor descents around water in order to make the floor steps as low as possible. However, because water collects on the floor descent during rainy weather, it is necessary to take drainage measures during construction work. b. Formwork carpenters and demolition workers on the upper floor often make holes in the sleeve for the drainage vertical pipe in order to drain the water down the floor, and plumbers and unit bath assemblers on the lower floor. In many cases, it is not possible to carry out construction because water accumulates on the floor descent. For this reason, the plumber installs the floor sleeve below the slab thickness to prevent water from falling to the lower floors, but accidents such as through holes may occur. c. As a general contractor, in order to make the progress of the construction smooth, drainage is done by using a vacuum pump during earthwork, but in order to work in fine weather, it is necessary to construct a temporary drainage vertical pipe considering the electric tools on the lower floor. However, it can be said that it is wasteful to drain the water every time it rains or work every time the drainage floor extends upward. d. For the above reasons, it is necessary to develop a product that has both floor sleeve curing (safety) and drainage function in rainy weather.

[0004]

[Means for Solving the Problems]

 INDUSTRIAL APPLICABILITY The present invention provides a watertight seal for the opening of the concrete floor during the construction work, and has a size large enough to cover the opening for piping provided on the concrete floor for easy installation and removal. An upper supporting plate having a reinforcing iron plate embedded therein, a cylindrical side wall projecting downward from the lower surface of the upper supporting plate and having an outer diameter adapted to the inner diameter of the opening, and a lower end of the cylindrical side wall. Temporary floor stopper for concrete floor opening, which is made of an elastic material and is integrally formed with a lower closing plate that is connected to the lower part and has a hose connection port that projects downward from the center of the lower surface and has an outer diameter that matches the inner diameter of the opening. The upper support plate and the reinforcing iron plate can be V-cut so that a cut portion of a desired size can be obtained, and the water flowing into the hose is connected to the hose connection port. Through to the outside Is intended to provide to have concrete floor opening for tacking plug adapted to be issued.

As a safety measure, since it has a reinforcing iron plate inside, there are no accidents such as stepping on it, and it has drainage performance, so there is no chance of getting caught in a water pool and draining outside in the rain. Therefore, it is a measure against electric leakage and electric shock (in rainy weather, even if each worker gets wet, he / she does not use electric tools etc.).

[0006]

[Embodiment of device]

 An embodiment of a temporary stop plug for a concrete floor opening according to the present invention will be described below with reference to FIGS. 1 to 3. 1 (A) is a vertical sectional front view of a temporary stopper according to the present invention, FIG. 1 (B) is a plan view of FIG. 1 (A), and FIG. 2 is a hose in which the temporary stopper according to the present invention is inserted into an opening of a concrete floor. Fig. 3 is a sectional view around the water of the concrete floor into which the temporary stopper according to the present invention is inserted. As shown in FIGS. 1 and 2, the temporary stopper for the concrete floor opening according to the present invention has a sufficient size to cover the concrete floor opening 19 for piping provided in the concrete floor and has a reinforcing member inside. The upper support plate 11 in which the iron plate 16 is embedded, the cylindrical side wall 12 protruding downward from the lower surface of the upper support plate 11 and having an outer diameter adapted to the inner diameter of the opening 19, and the cylindrical side wall 12 are provided. A concrete floor made of an elastic material which is integrally formed with a lower closing plate 13 which is connected to the lower end portion 12a and projects downward from the center of the lower surface of the hose connection port 14 and has an outer diameter adapted to the inner diameter of the opening portion 19. It is a temporary stopper for an opening, and the upper support plate 11 and the reinforcing iron plate 16 can be V-cut so that a cut portion 18 having a desired size can be obtained, and the water flowing into the inside can be prevented. Is said ho And it is discharged to the outside through a hose 17 connected to the connection port 14.

The above configuration will be described in detail below. As shown in FIG. 1, the temporary stopper has an upper support plate 11, a cylindrical side wall 12, and a lower closing plate 13 integrally formed from an elastic material such as rubber. The upper support plate 11 has a reinforcing iron plate 16 embedded inside it in an arbitrary shape such as a quadrangle or a circle having a size large enough to cover the concrete floor opening 19 during construction work, and generally has a slip surface on its surface. A large number of stop projections (not shown) are provided. The cylindrical side wall 12 projects downward from the lower surface of the upper support plate 11, and its lower front end 12a is slightly narrowed for convenient insertion into the opening 19. The outer diameter of the cylindrical side wall 12 is slightly larger than the inner diameter of the opening 19, and the outer peripheral surface of the cylindrical side wall 12 elastically adheres to the inner peripheral surface of the opening 19. In order to ensure this close contact, a small number of protrusions 15 may be provided to surround the outer periphery of the cylindrical side wall 12 in a ring shape. Further, the depth of the cylindrical side wall 12 may be substantially equal to the thickness of the opening 19. The lower closing plate 13 is connected to the lower tip portion 12a of the cylindrical side wall 12, has a hose connection port 14 protruding downward from the center of the lower surface, and has an outer diameter adapted to the inner diameter of the opening portion 19. The upper support plate 11 and the reinforcing iron plate 16 can be V-cut so that a cut portion 18 having a desired size can be obtained, and water flowing into the inside is connected to the hose connection port 14. It is designed to be discharged to the outside through a hose 17. In order to insert the temporary stoppers into the openings 19, the temporary stoppers having the dimensions specified by the diameter size of the respective openings 19 are inserted into the openings 19 with their lower end portions 12a facing downward. Since the outer diameter of the cylindrical side wall 12 is slightly larger than the inner diameter of the opening 19, the cylindrical side wall 12 is compressed and adheres to the inner peripheral surface of the opening 19 by its elasticity. When the ridge 15 is provided on the outer periphery of the cylindrical side wall 12, the portion is brought into close contact with the portion with stronger pressure. As a result, as shown in FIGS. 1 to 3, rainwater or industrial water is accumulated around the opening 19, and the lower surface around the upper support plate 11 and the concrete floor surface around the opening 19 are temporarily assumed. Even if water enters from between the openings, the outer peripheral surface of the cylindrical side wall 12, which is also in close contact with the inner peripheral surface of the opening portion 19, reliably prevents further infiltration of water. When piping work for the opening 19 is started, an appropriate thin plate material is inserted between the lower surface of the upper support plate 11 and the concrete floor surface, and the peripheral portion of the upper support plate 11 is held. It can be easily pulled out by pulling it up. Further, the reinforcing iron plate 16 embedded in the upper support plate 11 as a reinforcing material can withstand tools, building materials and the like dropped on the upper support plate 11 or even if a worker rides on them. it can. Furthermore, if a protrusion (not shown) is provided on the surface of the upper support plate 11, the worker will not slip and fall on this.

[0008]

[Effect of device]

 Since the temporary stopper for concrete floor opening according to the present invention is configured as described above, it has the following effects. The temporary stopper is made of an elastic material, and the outer peripheral surface of the cylindrical side wall elastically adheres to the inner peripheral surface of the opening of the concrete floor, so that water accumulated on the floor will infiltrate the outer peripheral surface and fall. Can be prevented. The upper support plate has a size large enough to cover the opening, and the reinforcing iron plate is embedded inside, so it will not be damaged even if tools and building materials fall on it, and Is safe to ride. Since the upper support plate can be provided with a V-cut along with a reinforcing iron plate to form a notch, water can be positively flowed into the upper support plate, and a hose connection port is provided on the lower block plate. Since the hose is connected to, the water that has flowed in can be discharged to the outside. Since the temporary stop plug can be easily and quickly attached to and removed from the opening, the construction process can be shortened and efficiency can be improved. Temporary stopcocks are economical because they can be used many times.

[Brief description of drawings]

FIG. 1A is a vertical cross-sectional front view of an embodiment of a temporary stopper for a concrete floor opening according to the present invention, and FIG. 1B is a plan view of FIG.

FIG. 2 is a vertical cross-sectional front view of the state in which the temporary stopper according to the present invention of FIG. 1 is inserted into a concrete floor opening and a hose is connected.

FIG. 3 is a sectional view around the water of a concrete floor into which a temporary stopper according to the present invention is inserted.

FIG. 4A is a vertical cross-sectional front view of a conventional temporary stopper, and FIG.
[Fig. 3] is a plan view of (A).

[Explanation of symbols]

 11: Upper Support Plate 12: Cylindrical Side Wall 12a: Lower Tip 13: Lower Closure Plate 14: Hose Connection Port 15: Protrusion 16: Reinforcing Iron Plate 17: Hose 18: Cut 19: Concrete Floor Opening

Claims (1)

[Scope of utility model registration request] 1. An upper support plate having a sufficient size to cover a piping opening provided on a concrete floor and having a reinforcing iron plate embedded therein, and the opening protruding downward from a lower surface of the upper support plate. A cylindrical side wall having an outer diameter adapted to the inner diameter of the portion, and a lower part having a hose connection port projecting downward from the center of the lower surface and connected to the lower end of the cylindrical side wall and having an outer diameter adapted to the inner diameter of the opening. A temporary stopper for a concrete floor opening made of an elastic material integrally molded with a closing plate, wherein the upper support plate and the reinforcing iron plate are V-cut so that a cut portion of a desired size can be obtained. Is possible,
A temporary stopper for a concrete floor opening, characterized in that water flowing into the inside is discharged to the outside through a hose connected to the hose connection port.