JPS5930811Y2 - pent cap - Google Patents

Description

[Detailed description of the invention] This invention relates to the improvement of a vent cap used for discharging indoor air to the outdoors, and its purpose is to attach it to an embedded pipe attached to an external wall. It consists in improving one's sexuality.

This type of vent cap is attached to the outside of a buried pipe installed on an exterior wall to prevent rainwater from entering, but as is well known, pipes of various sizes are used for buried pipes, and there are many types of vent caps. Since the vent cap is attached to the outer wall in advance, the work of connecting the vent cap, which is molded to a certain size, to the embedded pipe of an undefined size is extremely complicated.

The present invention has been devised by paying attention to this point, and the present invention will be described below based on an embodiment shown in the drawings.The present invention will be described below based on an embodiment shown in the drawings. A vent cap main body A is provided with a cylindrical embedded pipe connection part 3 formed by drilling a plurality of holes, and a spring part 4 is formed by bending a metal plate into an approximately inverted G-shaped cross section, and both sides thereof. It consists of a spring piece B having one of the horizontal parts 5, 5' provided on the vent cap body A raised upward and a protruding piece 6 having a sharp tip. This is a vent cap in which a spring portion 4 is fitted and a plurality of protrusions 6 are attached at predetermined intervals on the outer wall surface of the embedded pipe connection portion 3.

As shown in FIG. 3, the protruding piece 6 of the spring piece B is a metal spring so that it is approximately symmetrical to the outer circumferential surface of the embedded pipe connection part 3 with the center line being a tangent line that has a contact point near the attachment point. It is preferable to use a curved one in view of the position adjustment through rotation when fitting into the embedded pipe, and the hole 2 is formed by two slits 7 running parallel to the generatrix direction of the embedded pipe connecting portion 3. It is preferable that the tongue be perforated on the tongue piece 8.

Further, in the figure, numeral 9 indicates an outer wall, and numeral 10 indicates an embedded tube.

As described above, when forming a plurality of spring pieces B each having a protruding piece 6 with a sharp tip on the outer circumferential surface of the embedded pipe connection part 3, the present invention inserts a spring into the slit-shaped hole 2. Part 4
By fitting the projecting piece 6 until the horizontal parts 5, 5' abut against the embedded pipe connecting part 3, the protruding piece 6 is firmly fixed at a certain angle in a certain direction without wobbling due to the elasticity of the spring part 4. Therefore, the assembly work has been simplified,
On the other hand, for convenience, as shown in FIG. 4, the vent cap is fitted onto the embedded tube 10 which has been attached to the outer wall 9 in advance by rotating it. Although a gap is formed between the cedar bark, it is firmly held by the elasticity of the spring piece B and the biting of the sharply formed projection piece 6.

[Brief explanation of drawings]

FIG. 1 is a perspective view of the product of the present invention, FIG. 2 is a spring piece as a member of the same, and FIGS. 3 and 4 are views of the same in use. A: Vent cap body, B: Spring piece, 1: Loud, 2: Hole, 3:
...Embedded pipe connection part, 4...Spring part, 5
．． 5'...Horizontal part, 6...Protrusion piece, 7...
...slit, 8...tongue piece.

Claims (2)

[Scope of utility model registration request] (1) A vent cap main body A with a louver at one end and a cylindrical embedded pipe connection part formed by drilling multiple slit-like holes in the wall surface at the other end, and a metal plate with a cross section omitted. Reverse Ω
A spring piece B that is bent into a letter shape to form a curved spring part, and has a protruding piece with one of the horizontal parts provided on both sides raised upward and the tip of the protruding piece B having a sharp tip. This is a vent cap in which a spring portion of a spring piece B is fitted into a hole in a vent cap main body A, and a plurality of protrusions are attached at predetermined intervals on the outer wall surface of an embedded pipe connection portion. (2) The vent according to claim 1 of the utility model registration claim, wherein the hole is a slit-like object formed on a tongue piece formed by two slits running parallel to the generatrix direction of the embedded pipe connection part. cap.