JPH024335Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field This invention relates to a mounting device for a pipe connector used to connect a drain pipe of an air conditioner.

(b) Prior Art As a simple structure for attaching a drain pipe connector, for example, Japanese Utility Model Application Publication No. 158227/1983 proposes a structure in which a drain elbow is inserted into a drain port and locked for rotation.

(c) Problems to be solved by the invention In the above-mentioned proposed conventional structure, a locking piece on which the drain elbow is rotatably locked is integrally formed with synthetic resin and protrudes from the end of the drain port. Therefore, if a large force is applied to the drainage elbow, there is a risk that the locking piece will be damaged, and since the drainage elbow is attached only with a rotational lock, if it loosens and turns, it will come off the locking piece. It had some problems.

In view of these problems, the present invention provides a mounting device that firmly and reliably fixes a pipe connector.

(d) Measures to solve the problem This proposal adopts a mounting method in which the pipe connector is fitted into a mounting hole drilled in the board and fixed with a presser. In addition to providing a cut hole, the pipe connecting tool is provided with a locking part that is inserted into the cut hole and rotated to be locked to the other part of the inner circumferential edge, and the holding tool has this locking part. A fixing hole is provided that fits into the protruding base of the pipe connector to prevent the pipe connector from rotating.

(e) Action After inserting the pipe fitting into the mounting hole with the locking part facing the notch hole and also inserting the locking part into the notch hole, move the pipe connector in one direction, either left or right. When rotated, the locking tool is locked to the other part of the inner peripheral edge of the mounting hole and temporarily fixed. Thereafter, when the protruding base of the locking part is fitted into the fixing hole of the presser and the presser is screwed onto the board, the pipe connector is fixed and prevented from rotating on the board.

(F) Embodiment To explain based on the drawings, 1 is a ceiling-embedded air conditioning unit in which the unit main body 2 is embedded in the ceiling space and the decorative panel 3 is exposed on the lower surface of the ceiling in the room. A board 4 made of sheet metal is screwed into the screw hole 5.

A circular mounting hole 7 into which a synthetic resin pipe connector 6 is fitted and a notch hole 8 in which a portion (four locations) of the inner circumferential edge of the board 4 is cut are integrally formed by punching. The other part of the inner peripheral edge remains as a protruding edge 9.

Further, the above-mentioned pipe connector 6 has a flange portion 10 that bulges outward, and a rear edge 11 of this flange portion.
and four substantially L-shaped locking parts 13 having grooves 12 between them, and the locking parts 13 and the base 14 as a whole protrude outward from the flange part 10. There is.

15 is a fitting hole 16 that fits into the flange portion 10
and a fixing hole 17 for preventing rotation that fits into the protruding base 14 are integrally formed by punching.The screw holes 18 and 19 are fixed to the board 4 by screws 20 at four locations. It is becoming fixed.

The pipe connector 6 is constructed as described above, and the pipe connector 6 is inserted in the direction indicated by the solid arrow in FIG. When the flange 10 is inserted into the mounting hole 7 as shown in FIG. Then, when the pipe connector 6 is rotated to the left in this abutting state as shown by the dashed-dotted line arrow, the grooves 12 fit into the four protruding edges 9, respectively, and are further engaged with the end edges 21 of the protruding edges 9. When the pipe connector 6 is rotated until the inner corner edge 22 of the portion 13 abuts and cannot be rotated, the pipe connector 6 is temporarily fixed to the substrate 4 with the flange portion 10 and the base portion 14 protruding from the substrate 4. In this state, fixing hole 17 of presser 15
When the fitting holes 16 of the presser 15 are inserted into the flange portion 10 as shown by the broken line arrows with the four bases 14 facing each other, the fixing holes 17 also align with the bases 14 as shown in FIGS. 2 and 3. The pipe connector 6 is prevented from rotating clockwise (in the direction opposite to the one-dot chain arrow).

After that, insert the hose 23 of the drain pump built into the unit body 2 (a pump that scrapes up drain water accumulated in the drain pipe) into the small diameter part 24 of the pipe connector 6, and also insert the hose 23 into the large diameter part of the pipe connector 6. When a drain pipe 26 for outdoor drainage is inserted into the drain pipe 25, the drainage treatment work is completed.

(g) Effects of the invention According to the device of the present invention, the mounting hole and the notch hole in which the pipe connector is rotatably locked after insertion can be easily formed in the substrate by punching, etc., and the substrate can be made of sheet metal. This increases the mounting strength.

In addition, the pipe connector is firmly fixed as it is stopped by the holding tool after rotation is locked, and the notch hole is blocked by the holding tool, which prevents dust from entering the board. .

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention. Fig. 1 is an exploded perspective view of the mounting device, Fig. 2 is a side view of the mounting device, Fig. 3 is a front view of the mounting device, and Fig. 4 is an exploded perspective view of the mounting device. FIG. 2 is a perspective view of a ceiling-embedded air conditioner. 4... Board, 6... Pipe connector, 7... Mounting hole, 8... Cut hole, 9... Other parts of inner peripheral edge (protruding edge), 13... Locking part, 14... Base, 15...
Holder, 17...Fixing hole.

Claims (1)

[Scope of utility model registration request] This is a mounting device that fits a pipe connector into a mounting hole drilled in a board and fixes it with a presser. is provided with a locking part that is inserted into this cut hole and rotates and locks on the other part of the inner circumferential edge, and the holding tool is fitted with the protruding base of this locking part to attach a pipe connecting tool. A mounting device for a pipe connector, characterized by having a fixing hole for preventing rotation.