JP3115103U - Piping box - Google Patents

Abstract

In a piping box in which a fixing ring is screwed into a protruding cylinder portion, an elbow can be easily inserted.
A box body 4 that is mounted on a wall surface of a wall surface through pipe and that houses an elbow 2 therein has an insertion opening 42 for inserting the elbow 2 into the box, and an appropriate connecting member at the other end of the elbow. And a pipe opening 43 through which the flow path pipe 1 connected is formed, and the insertion opening is formed in the protruding cylinder 421, and the receiving part 423 of the flange 22 attached to the elbow is formed as a protruding cylinder. The upper part of the projecting cylinder part is omitted so that it can be passed through the connecting member at the other end of the elbow within a range that does not hinder the screwing of the fixing ring that is provided on the back side of the part and presses against the receiving part of the elbow collar Do it.
[Selection] Figure 1

Description

  The present invention relates to a piping box that is used when piping such as hot water, water, and gas passes through a wall surface of a building or the like and an elbow is used as a pipe connecting device at the penetration portion.

  A piping box that houses an elbow used as a pipe fitting and a fixing structure for the elbow are disclosed in JP-A-9-178051 (Patent Document 1).

  The disclosed box for piping is provided with an attachment surface portion to the wall surface of the box body that is attached to the wall surface of the pipe penetrating through the wall surface and the like, and an opening serving as a piping passage below the box body. In particular, the piping passage of the mounting surface portion is an insertion opening for inserting the elbow into the box, and a fixing portion in the elbow box is provided with a flange at a predetermined position of the elbow, and the insertion opening is In addition to being formed in the protruding cylinder part, a receiving part of a collar part attached to the elbow is provided on the back side of the protruding cylinder part so as to project toward the center of the cylinder axis, and the collar part of the stored elbow is pressed against the protruding cylinder part and clamped The fixing ring is screwed together.

  By the way, if the insertion opening is enlarged in order to facilitate insertion of the elbow from the insertion opening, the wall hole through which the pipe penetrates needs to be enlarged. However, from the viewpoint of piping work, it is preferable to make the wall hole small. Therefore, Patent Document 1 proposes a configuration in which the upper and lower portions of the buttocks are cut as a countermeasure.

Japanese Patent Laid-Open No. 9-178051.

  When the upper and lower portions of the buttock are cut away as disclosed in Patent Document 1, the elbow can be easily inserted even if the insertion opening is small. In addition, after the elbow is inserted and fixed in the box body, when connecting a predetermined pipe to the elbow, the connection on the insertion opening side is connected to the elbow connection part (a screw is engraved on the outer periphery) located in the insertion opening. The connection nut of the channel pipe end is screwed from the outside (opposite the wall surface), and its operation is easy.

  However, the connection on the other end side of the elbow is a pipe from the lower opening, and the connection place is inside the box, so that the connection work is very troublesome. For this reason, the channel pipe is connected to the elbow in advance, and the channel pipe is first inserted into the insertion opening, and then the elbow is inserted. However, the channel pipe is not a flexible pipe such as a vinyl hose, but is bent. Since a somewhat hard polyethylene pipe is used, it is easy to get caught in the insertion opening of the connecting member (connecting nut, sleeve body, fused tube, etc.) between the elbow and the flow path in the above insertion work. The work becomes complicated.

  Of course, when the insertion opening is made larger, the above problem is solved, but there is a problem that the wall hole becomes larger.

  Thus, the present invention proposes a new box for piping that makes it easy to insert an elbow that has already been connected to a channel pipe without increasing the wall hole.

  The piping box according to the present invention is mounted on a wall surface of a pipe penetrating a wall surface or the like, and the box body that houses the elbow is attached to the wall surface or the like provided at a position where one end of the stored elbow is disposed. A surface opening, an insertion opening for inserting the elbow provided in the mounting surface into the box, and a piping opening through which a flow path pipe connected to the other end of the elbow by an appropriate connecting member is inserted. The insertion opening is formed in the protruding cylinder part, and the receiving part of the flange part provided on the outer periphery on one end side of the elbow is provided in the back side of the protruding cylinder part, and the flange part of the stored elbow is pressed against the receiving part. In the piping box for fixing the elbow by screwing the fixing ring to the protruding cylinder, the protruding cylinder has a width that allows the connecting member at the other end of the elbow to pass within a range that does not hinder the fixing ring. Without the upper part of the part It is characterized in.

  Thus, the flow path pipe connected to the elbow is inserted from the insertion opening of the piping box, and the elbow is further inserted to house the elbow in the box. In the insertion operation, the channel pipe is inserted in an approximately upright state, and the passage path of the connecting member for connecting the channel pipe can be secured by the upper notch portion of the protruding cylinder portion.

  After the elbow is housed in a predetermined position in the box (a position where the collar comes into contact with the receiving portion), a fixing ring is screwed and attached to fix the elbow to the box body.

  Since the present invention adopts the above configuration, it is easy to insert and store the elbow in the piping box without enlarging the wall hole even if a flexible pipe lacking flexibility is adopted as the flow pipe. It is now possible to do.

  Next, an embodiment of the present invention will be described. The embodiment will be described with respect to a piping construction example constituted by a piping member and a piping box (present device) serving as a cover member for the piping member.

  The pipe line is implemented through the wall surface A, and the pipe member is an elbow 2 that connects the flow path pipes 1 on the front and back of the wall surface A and a connection nut (connection member) that connects the flow path pipe to the elbow 2. 3, the piping box is composed of a box body 4, a fixing ring 5, a cover tube 6 and a cover tube connector 7.

  The elbow 2 is an L-shaped tube similar to the conventional one, and the connecting screw portion 21 is engraved at each end portion, and the channel tube 1 is connected using the connecting nut 3. A flange portion 22 is provided on the outer periphery behind the connecting screw portion 21 (the connecting screw portion 21 is in a protruding state). The flange portion 22 has a size corresponding to a protruding cylinder portion 421 described later, and is formed by removing the top and bottom.

  Further, the elbow 2 is formed by connecting the flow path pipe 1 with a connecting nut 3 on the non-protrusion forming side, and the flow path pipe 1 employs a slightly hard polyethylene bent pipe. Of course, instead of the pipe, a channel pipe made of another material can be used.

  The box body 4 is large enough to accommodate the elbow 2 and has a mounting surface portion 41 provided on a side surface to be mounted on the wall surface, an insertion opening portion 42 provided in the mounting surface portion 41, and a piping opening portion provided below the box. 43 is provided.

  The insertion opening 42 is formed in the protruding cylinder part 421, a screw part 422 is formed on the inner peripheral surface of the protruding cylinder part 421, and the flange part 22 of the elbow 2 contacts the left and right sides of the protruding cylinder part 421. The receiving portion 423 to be contacted is provided, and in particular, the upper portion of the protruding cylindrical portion 421 is in a range in which the fixing ring 5 is not screwed to the screw portion 422 of the protruding cylindrical portion 421 (about 3/3 of the entire circumference). 1 or less) and a width that allows the connecting nut 3 at the other end of the elbow 2 to pass therethrough (notched portion 424).

  The piping opening 43 is provided with an outer peripheral screw to which the cover tube connecting body 7 can be screwed and attached, and the cover tube 6 is a resin bellows tube that can be bent freely and easily, and the cover tube connecting body. 7 is formed by inscribed a locking claw on which the bellows portion of the cover tube 6 is hooked on the inner surface.

  Thus, in the pipe construction using the above-mentioned piping box, the required length of the flow channel pipe 1 is connected in advance to the non-groove formation side with the connecting nut 3, and the connection opening 42 is connected to the connection pipe. The completed flow pipe 1 is inserted into the box body 4 and taken out from the other piping opening 43 to the outside of the box.

  Then, the elbow 2 is inserted and the elbow 2 is housed in the box. Especially when the connecting nut 3 passes through the insertion opening 42, it passes through the notch 424 as illustrated in FIG. By doing so, the flow path pipe 1 can be smoothly inserted even if it is in an upright state.

  Further, the elbow 2 main body portion (curved intermediate portion) after passing through the connecting nut 3 portion and the portion provided with the flange portion 22 also pass through the notch portion 424 so that the inside of the box main body 4 smoothly. (Figs. 3 and 4).

  The elbow 2 is inserted until the flange portion 22 is in contact with the receiving portion 423, and the fixing ring 5 is screwed to fix the elbow 2 to the box body 4.

  The box body 4 in which the elbow 2 is housed is configured such that the projecting cylindrical portion 421 is inserted into the wall hole B formed in the wall surface A, the mounting surface portion 41 is fixed to the wall surface A, and the channel pipe 1 protruding from the box body 4 is covered. The tube 6 is covered and screwed to the box body 4 to lock the cover tube 6 to the cover tube connector 7. In addition, the other channel pipe 1a is attached to the threaded portion 21 of the elbow 2 protruding from the wall hole B to construct a pipe line penetrating the wall.

  In particular, according to the present invention, as described above, the upper portion of the projecting cylinder portion 421 is the notched portion 424, so that the elbow 2 can be inserted into the box body 4 even if the wall hole is made to have a minimum size. Can be easily performed.

  In addition, you may employ | adopt structures other than a connection nut as a connection member.

The exploded perspective view of the whole embodiment of the present invention. Explanatory drawing of the same elbow insertion state (insertion state of connecting nut part). Explanatory drawing of the elbow insertion state (insertion state of the heel part). Explanatory drawing of the elbow insertion state (insertion end state). Explanatory drawing which shows the attachment state to the wall surface.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Flow path pipe 2 Elbow 21 Connection screw part 22 ridge part 3 Connection nut (connection member)
4 Box body 41 Mounting surface part 42 Insertion opening part 421 Projection cylinder part 422 Screw part 423 Reception part 424 Deletion part 43 Piping opening part 5 Fixing ring 6 Cover pipe 7 Cover pipe coupling body

Claims (2)

  A box body that is mounted on a wall surface in a pipe that penetrates the wall surface and that stores an elbow therein is provided on a mounting surface portion on a wall surface provided at a position where one end of the stored elbow is disposed, and on the mounting surface portion An insertion opening for inserting the elbow into the box, and a piping opening through which a flow path pipe connected to the other end of the elbow by an appropriate connecting member is inserted, and the insertion opening is a protruding cylinder In addition, a flange receiving portion provided on the outer periphery of one end of the elbow is provided on the back side of the protruding cylinder portion, and a fixing ring that presses the flange portion of the stored elbow against the receiving portion is screwed into the protruding cylinder portion. In addition, in the piping box for fixing the elbow, the upper portion of the projecting cylindrical portion is omitted so that the connecting member at the other end of the elbow can pass through in a range that does not hinder the screwing of the fixing ring. Piping box characterized by .   The piping box according to claim 1, wherein the upper and lower portions of the elbow's collar are cut out, and the receiving portion at the back of the insertion opening is provided so as to protrude only on the left and right in correspondence with the collar.

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