JP2002310108A - Pipe installing tool with connecting frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate piping even in a narrow place, and to prevent slipping-out of a bolt. SOLUTION: This pipe installing tool is composed of a fixing member 1 having a pair of leg pieces 3a and 3b, and installed on a hanging bolt 21, a pipe installing member 6 having a pair of installing frames 7a and 7b and a pair of connecting pieces 8a and 8b for sandwiching a pipe by opening and closing, the bolt 12 and a nut 13 for connecting both members, and has a bolt locking hole capable of inserting the bolt 12, and lockable on a thread, and is inserted into a bolt hole 5 of one leg piece 3a, and checks movement of one leg piece 8a to the opposite side of the adjacent one connecting piece 8a. A connecting frame 11 obliquely provided with a drawing piece 11d is fitted in the connecting pieces. The fixing member is brought into close contact with the pipe installing member by the drawing piece to prevent slipping-out of the bolt by the bolt locking hole.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plumbing device such as a water pipe or a sprinkler for fixing a pipe to a ceiling.

[0002]

2. Description of the Related Art A conventional pipe fitting generally called a suspension band includes a fixing member and a pipe mounting member. The fixing member is detachably attached to a suspension bolt fixed to the ceiling, and has a pair of leg pieces extending downward. The pipe mounting member has a pair of mounting frames that open and close to clamp the pipe, and a connecting piece that extends upward from the mounting frame. The leg piece and the connecting piece are connected by bolts and nuts.

[0003] In a plumbing operation originally performed in a small place,
Since the fixing member and the pipe mounting member are easy to move with each other, it is difficult for the bolt to pass through the leg piece and the connecting piece, and when the nut is screwed to the bolt and tightened, the bolt or the nut tends to rotate together. In addition, since the plumbing operation is usually performed on a stepladder having a poor scaffold, the plumbing operation becomes more difficult.

Further, bolts may come off from pipe fittings during piping work. Bolts and nuts are accessory parts according to the standard of pipe fittings and can not be substituted, so bolts that have fallen out must be picked down from the stepladder,
It also causes delay in plumbing work.

[0005] In order to solve the above-mentioned difficulties, the present applicant invented a "tube fitting" and filed a patent application (Japanese Unexamined Patent Publication No.
0-37918). In this "tube fitting", a nut is fixed to a sheath that is fitted to one connecting piece and a leg piece, and a bolt is inserted into a bolt hole provided with a locking projection on the other connecting piece. . Since the nut is fixed to the sheath, there is an advantage that the co-rotation of the nut does not occur when the bolt is tightened, and the bolt is locked by the locking projection so that the bolt does not fall off.

Further, the present applicant has filed a patent application for inventing a "bolt retainer" in order to prevent the bolt from rotating and falling off (Japanese Patent Laid-Open No. 2000-192935). This "bolt stopper" is provided with a plurality of locking claws for locking a screw thread of a bolt in a bolt hole and a rotation stopper piece abutting on a side surface of the bolt head.

[0007]

However, this "tube fitting" requires caulking work for fixing the nut to the sheath, and the formation of the locking projections is difficult. Sometimes heavy bolts could fall off. The "bolt retainer" also has the disadvantage that it takes time and effort to mount it on the pipe fitting, and when it becomes necessary to remove the bolt, the bolt is caught by the locking claw and cannot be removed.

A problem to be solved by the present invention is to facilitate piping even in a narrow place, and to improve the efficiency of piping work by preventing bolts from falling off.

[0009]

The features of the present invention are as follows. That is, a fixing member having a pair of leg pieces extending downward and attached to a suspension bolt, a pair of mounting frames that open and close to clamp a pipe, and a pair of couplings extending upward from each mounting frame. Pipe mounting member having a piece, a bolt connecting both leg pieces and both connection pieces by positioning both leg pieces between both connection pieces,
In a pipe fitting consisting of a nut, a bolt locking hole through which a bolt can be inserted and which can be locked to a screw thread of a bolt is inserted into a bolt hole of one leg, and one of adjacent ones is inserted. A connecting frame having a pulling piece obliquely fitted therein for preventing the movement of the leg piece to the side opposite to the connecting piece is fitted into the connecting piece.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference numeral 1 denotes a fixing member, which is an upper part 2 and a pair of plate-like leg pieces 3 integrally formed therewith and extending downward.
a, 3b. Reference numeral 4 denotes a suspension bolt mounting nut, and reference numeral 5 denotes a bolt hole penetrated through each leg piece. The suspension bolt mounting nut is rotatable and slightly movable up and down.

Reference numeral 6 denotes a pipe mounting member, which is a pair of mounting frames 7a and 7b formed in a semi-annular shape convex outward, and formed integrally with the upper end of the mounting frame and extended upward.
It consists of plate-shaped connecting pieces 8a and 8b. The lower ends of the pair of mounting frames are connected by hinges 9 and can be freely opened and closed. Reference numeral 10 denotes an elongated hole in the vertical direction, which is provided through the connecting piece.

Reference numeral 11 denotes a connecting frame integrally formed of a resilient thin metal plate. As shown in detail in FIG. 4, 11a denotes a main body having a U-shaped cross section, and 11b denotes a main body in which legs of the main body are placed inside each other. One connecting piece, for example, 8a
It is provided for fitting and attaching the connecting frame to the connector.
11c is a bolt locking hole penetrated in the main body. Also, 1
In the illustrated example, reference numeral 1d denotes a pulling piece, which is formed in a circular arc shape (or U-shape) having a downward convex shape corresponding to the shape of the circular bolt hole 5, and is formed from below the bolt locking hole to the inside. (The side opposite to the opening side of the main body).

Reference numeral 12 denotes a bolt, and the base of the screw portion 12a is
Detents 12 whose cross section is rectangular (square in the illustrated example)
b, and as shown in FIG.
The outer surface of the detent portion abuts against the inner surface of the bolt to serve as a detent for the bolt. Here, the bolt locking hole 11
The inner diameter of c is formed to a size that allows the screw portion 12a of the bolt to be inserted and that can be locked to the screw thread. In addition, 1
Reference numeral 3 denotes a nut, which is screwed to the bolt 12.

When assembling the pipe fitting, if the bolt 12 is pushed into the elongated hole 10 after the connecting frame 11 is fitted into the connecting piece 8a, the bolt does not rotate as described above. Also, the thread of the screw portion 12a is
Is locked in the bolt locking hole 11c, so that the bolt does not come off.

Further, a bolt 12 is passed through a bolt hole 5 of both leg pieces 3a and 3b of the fixing member 1 to connect the two leg pieces to a connecting piece 8a.
When pushed to the side, the pulling pieces 11d of the connecting frame fit into the bolt holes of the leg pieces 3a and are mixed. The leg piece 3a is prevented from moving toward the connecting piece 8b by the pulling piece that is inclined inward and is drawn toward the connecting piece 8a. Therefore, the fixing member 1 does not separate from the connecting piece 8a. And the other mounting frame 7
b, close the bolt through slot 10 and finally nut 13
Screw.

Here, the pulling piece 11d is formed in a circular arc shape whose vertical cross section is convex downward, and the lower part of the bolt hole 5 is a semicircular shape convex downward. It fits easily. Further, since the area where the pulling piece abuts on the bolt hole 5 is increased, the force for preventing the movement of the leg piece is large, and the leg piece can be in close contact with the connecting piece.

The pulling piece 11d can be provided at any position, such as above or beside the bolt locking hole 11c, since it is sufficient to prevent the fixing member from moving toward one of the connecting pieces 8a or 8b. is there. The protruding direction is such that when one of the connecting pieces, for example, the leg piece 3a adjacent to 8a moves and moves away from the connecting piece, the bolt 12 is locked by the bolt hole 5 so as to prevent the movement. Any direction may be used as long as it gradually moves away from the long axis of the object. Further, the shape of the pulling piece is not limited to the illustrated example, but may be formed in a plate shape.

When the pipe 22 is mounted on the pipe fitting, even if the other mounting frame 7b is opened, the bolts 12 do not fall off, and
Since the fixing portion 1 is drawn to the connecting piece 8a and is in close contact therewith, mounting work is easy. Further, when the pipe is closed and the bolt is passed through the elongated hole 10 of the other connecting piece 8b, the bolt is easy to pass because the elongated hole is vertically long. Further, when the screwed nut 13 is tightened, the bolt does not rotate.

The illustrated pipe fitting is known except that the connecting frame 11 is provided and the bolt is provided with the rotation preventing portion 12b. The structure of the known pipe fitting is substantially different from the illustrated example. Absent. In the illustrated example, the mounting frame 7a,
7b is openably and closably connected by a hinge 9, but a T-shaped engagement piece is protruded on one end and a T-shaped engagement hole is penetrated on the other at the lower end of the mounting frame. An engagement type in which an engagement piece is hooked on a locking hole and both mounting frames are openably and closably connected is also known. Of course, the present invention can be applied to an engagement type pipe fitting.

[0020]

Since the fixing member is in close contact with the connecting piece of one of the mounting frames, the pipe mounting member is slightly moved during the piping work, and the bolt does not come off and the bolt does not rotate. , Work efficiency is improved.

[Brief description of the drawings]

FIG. 1 is an enlarged front view of a main part.

FIG. 2 is a front view.

FIG. 3 is a side view.

FIG. 4 is a perspective view of a connection frame.

FIG. 5 is a side view showing a state in which a rotation preventing portion of the bolt is fitted into a long hole of the connecting piece.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fixing member 3a, 3b leg piece 6 Pipe mounting member 7a, 7b Mounting frame 8a, 8b Connecting piece 11 Connecting frame 11c Bolt locking hole 11d Pulling piece 12b Detent

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3H023 AA05 AB04 AC04 AD21 AD33 AD55 3J022 DA11 EA16 EC02 EC17 EC22 FB03 FB06 FB12 GA03 GA13 GA23 GB43 GB45 GB53

Claims (3)

[Claims] 1. A fixing member having a pair of leg pieces extending downward and attached to a suspension bolt, a pair of mounting frames for opening and closing to clamp a pipe, and extending upward from each of the mounting frames. A pipe mounting member having a pair of connecting pieces, and a bolt connecting both leg pieces and both connecting pieces by positioning both leg pieces between the two connecting pieces;
In a pipe fitting consisting of a nut, a bolt locking hole through which a bolt can be inserted and which can be locked to a screw thread of a bolt is inserted into a bolt hole of one leg, and one of adjacent ones is inserted. A pipe fitting with a connection frame, wherein a connection frame that obliquely pulls a pulling piece, which prevents movement of the leg piece to a side opposite to the connection piece, is fitted into the connection piece. 2. The pipe fitting with a connection frame according to claim 1, wherein the pulling piece has an arc-shaped or U-shaped cross section. The connecting piece has a vertically long hole penetrating therethrough, and the base of the screw portion of the bolt is in contact with the inside of the long hole so as to prevent rotation of the bolt. The pipe fitting with a connection frame according to claim 1, wherein a detent part having a rectangular cross section is formed.