JP2009185495A - Tap structure of sluice gate - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tap structure of a sluice gate easily castable in both square and circular shapes by a single molding die by merely changing a part of the specifications of the molding die such as a wooden form. <P>SOLUTION: This sluice gate comprises a door contact 5 in which a tap is formed and a door body liftably attached to the door contact and opening and closing the tap. A circular tap 4 is formed at the center of a square tap S by integrally projecting a flange part 14, which closes the four corners of the square tap S, from the inner peripheral surface S1 of the tap. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a water control door installed in an upper waterway, a lower waterway, an irrigation waterway, and the like, and more particularly, to a structure of a shed.

As a conventional example of the water control door, the one described in FIGS. 6 and 7 of Patent Document 1 can be cited, and the water control door will be described with reference numerals of the same document. A door stop 33 having an opening (hereinafter referred to as a jar) 33a and a door body 34 attached to the door slidable 33 so as to be movable up and down and opening and closing the shed 33a. The door stop 33 and the door body 34 are generally made of cast products.
JP 2002-013126 A

  In general, there are two types of sheds, square type and circular type, depending on the cross-sectional shape of the channel, and the door ends are cast products. . However, shapes other than the shed are often the same, and it is uneconomical to produce different wooden shapes only by the difference in the shed shape.

  The present invention was created in order to solve such problems, and by simply changing a part of the specifications of a mold such as a wooden mold, it is easy to use either a square or a circular throat with a single mold. The purpose is to provide a water inlet door structure that can be cast in shape.

  In order to solve the above-mentioned problems, the present invention provides a water control door comprising a door stop in which a door is formed and a door body that is attached to the door so as to be movable up and down and opens and closes the door. By constructing a ridge that closes the four corners integrally from the inner peripheral surface of the shed, a circular shed is formed at the center, thereby providing a shed structure for the water control door.

  According to this shed structure, it is possible to change the shape of a square shed shape to a circular shed shape simply by replacing the ridge forming piece. Since the formation part of the collar part is local, most of the molds are shared.

  According to the present invention, it is possible to easily form a circular shed shape using a rectangular shed-shaped mold, and thus it is possible to reduce the manufacturing cost of the water control door.

  The present invention will be described with reference to the drawings. 1 and 2 are a front view and a side sectional view, respectively, of the water control door, and both show a state in which the door body is lowered and the shed is closed. FIG. 3 is a front view of a single door stop, and FIGS. 4A and 4B are an AA sectional view and a BB sectional view in FIG. 3, respectively.

  The water control door 1 has a pair of vertical frames 3 and a door stop 5 in which a circular shed 4 is formed in the lower part, and a pressing plate 11 bolted to the vertical frame 3 and the front surface of the vertical frame 3. And a door body 6 attached to the door stop 5 so as to be movable up and down. Both the door-to-door 5 and the door body 6 are cast products. The door stop 5 is fixed to the housing F through, for example, a mortar M as shown in FIG. The door body 6 is moved up and down by a switch (not shown) connected to the upper portion of the rod 2 to open and close the shed 4. Reference numeral 7 is a hole formed in the upper part of the door stop 5.

  As shown in FIG. 3, a sheet mounting surface 8 is formed on the lower front surface of the door stop 5 so as to surround the mouth 4 squarely, and after the surface treatment, the waterproof sheet 9 is fixed as shown in FIG. Established. A waterproof sheet 10 is fixed to the rear surface of the door body 6 in correspondence with the waterproof sheet 9. In addition, a wedge-shaped fixing tool 12 having an inclined surface is attached to the door stop 5 via the pressing plate 11, and a wedge-shaped member 13 having an inclined surface is also attached to the door body 6. When the door body 6 is lowered, the wedge-shaped fixing tool 12 and the wedge-shaped member 13 push the door body 6 toward the door stop 5 side by sliding contact with each other. When the door body 6 is completely lowered and the shed 4 is closed, the door body 6 is pressed against the door stop 5 and the water-stop sheets 9 and 10 are brought into close contact with each other to ensure water-stopping around the shed 4. Is done.

  In the water control door 1 described above, as shown in FIG. 3, the present invention has a circular shape in the center by projecting a flange portion 14 that closes the four corners of the rectangular mouth S from the inner periphery S 1 of the mouth. The main feature is that the shed 4 is formed. Specifically, in the door stop 5, the flange 15 is formed in a rectangular frame shape so as to have a rectangular opening (mouth S), and the flange 15 is closed so as to close the four corners of the opening (mouth S). The inner peripheral surface (the inner peripheral surface S1 of the throat) is integrally projected, and the rim portion 14 whose tip edge is formed in an arc shape is surrounded by the tip edge of the ridge portion 14, and the opening portion (the throat S) And a circular mouth 4 having a diameter equal to or less than the length of one side.

  Here, the square shed S is a temporary shed that assumes the case where the ridge portion 14 is not present, and means an original square type shed. Specifically, a rectangular type shed is formed by a throat inner peripheral surface S1 having a certain width in the water flow direction, which is composed of a pair of left and right vertical planes and a pair of upper and lower horizontal planes. And although not shown in figure, what is formed as an annular curved surface instead of four sides of the inner peripheral surface S1 is a conventional circular type inlet. As described above, conventionally, when changing the shape of the shed, the throat inner peripheral surface S1 must be formed on either a flat surface or a curved surface, that is, the frame shape of the flange 15 is different. It was difficult.

  On the other hand, the present invention utilizes the inner peripheral surface S1 composed of four planes constituting the quadrilateral-type throat S as it is, and closes the four corners of the throat S so that the tip edge is formed in an arc shape. A circular shed 4 can be formed at the center of the square shed S by raising the portion 14 substantially vertically from the inner peripheral surface S1 of the shed. FIG. 3 shows a case where the square mouth S is a circular mouth 4 having a diameter equal to the side length.

  The formation of the collar part 14 is only required to replace the mold for forming the collar part 14 with respect to the mold for forming the square collar S. Since the formation part of the flange 14 is local, most of the molding die is shared, and it is not particularly necessary to change the frame shape of the flange 15 from a square to a circle. Only the inner part surrounded by suffices, and the manufacturing cost of the mold is reduced.

  The door body 6 does not need to be separately manufactured for a circular shed and can be used as it is for a rectangular shed S, so that the manufacturing cost can be reduced accordingly.

  The collar portion 14 can be formed so that the front surface 14a thereof is, for example, flush with the sheet attachment surface 8, but the sheet attachment surface 8 is subjected to a surface treatment such as polishing, so as shown in FIG. It is better to form it in steps.

  FIG. 5 shows a modification of the collar 14. In FIG. 3, the circular shed 4 having a diameter equal to the side length of the square shed S is formed, whereas in FIG. The example which formed the circular opening 4 of the diameter is shown.

  In this example as well, it is only necessary to replace the frame for forming the collar part 14 with respect to the molding mold of the square mouth S, and since the formation part of the collar part 14 is local, most of the molding mold is shared, The production cost of the mold is reduced.

  As mentioned above, although the optimal embodiment was described about this invention, this invention is not limited to what was described in drawing, A design change is possible in the range which does not deviate from the meaning.

It is a front view of a water control door. It is a sectional side view of a water control door. It is a front view of a single door stop. (A), (b) is AA sectional drawing in FIG. 3, and BB sectional drawing, respectively. It is a front view of the single door stop which shows the modification of a shed structure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Water control door 4 Circular shed 5 Per door 6 Door body 8 Sheet attachment surface 14 ridge part 15 Flange S Square shed S1 Square inner rim

Claims (1)

In a water control door comprising a door stop formed with a shed and a door body that is attached to the door so as to be movable up and down and opens and closes the shed.
A waterhole structure for a water control door characterized in that a circular waterhole is formed at the center by integrally projecting a waterhole that closes the four corners of a rectangular waterhole from the inner peripheral surface of the waterhole.

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