JP2006040681A - Water cut-off switch - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water cut-off switch having a perfect water cut-off effect. <P>SOLUTION: This water cut-off switch is provided with: a pipe-like hollow extension part; a housing part having drain holes on both sides; an interlocking member; a water cut-off member; a pressing member; and a switch part formed integrally with the pressing member. The water cut-off switch is characterized by that the housing part for housing the pressing member and the switch part is formed in an upper part of the extension part; an outer ring and an inner ring are formed at a connection part between the housing part and the extension part; the interlocking member is a hollow pipe vertically movably mounted on the extension part; an ring-like groove is formed outside its intermediate part; the water cut-off member includes a water cut-off ring installed in the housing part and having an inner edge part gearing with the ring-like groove and an outer edge part, and a close contact ring for fixing the outer edge part between the inner ring and the outer ring in the housing part; the integrated switch part is mounted in the upper part of the pressing member; the pressing part continuously contacting the interlocking member is formed in a lower part thereof; and the water cut-off ring is stably housed in the housing part by pressing the inner edge part of the water cut-off ring against the ring-like groove by the pressing part. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention particularly relates to a water cutoff switch having a complete water cutoff effect.

  As shown in FIG. 4, the conventional water cutoff switch has a pipe-shaped hollow extending portion (60), and the accommodating portion (40) is provided in the upper portion of the extending portion (60) to accommodate the pressing member (20). An interlocking member (44) that is provided and is movable up and down is provided inside the extending part (60), and the pressing member (20) has a pressing part (24) to be combined with the interlocking member (44). A ring-shaped groove (241) is formed in (24), and a water cutoff ring (46) that meshes with the ring-shaped groove (241) is provided in the extending portion (60), and an outer edge portion (462) of the water cutoff ring (46). Is fixed to the accommodating portion via the positioning member (42), and the inner edge portion (464) is engaged with the ring-shaped groove (241), and the water shut-off ring (46) accommodates foreign matters such as moisture and dust. Inside through the gap between the upper end of (40) and the extension (24) Thereby preventing the entry. In addition, since the said water cutoff switch is generally used well, it is not described in patent literature or non-patent literature.

  However, it is very troublesome to install the outer edge portion (462) of the water cutoff ring (46) in the accommodating portion (40) by the positioning member (42) in the conventional water cutoff switch, and when the water cutoff switch is used. Since the inner edge portion (464) of the water cutoff ring (46) is interlocked with the extending portion (24), the water cutoff ring (46) is deformed and the water cutoff effect is lost.

  Therefore, the present invention has been filed for the purpose of providing a water cutoff switch having a complete water cutoff effect.

The invention of claim 1 of the present application includes a pipe-shaped hollow extending portion, a housing portion having drain holes on both sides, an interlocking member, a water cutoff member, a pressing member, and a switch portion provided integrally with the pressing member. A water cutoff switch comprising:
An accommodating part is provided in the upper part of the extending part to accommodate the pressing member and the switch part, and an outer ring and an inner ring are formed at a connecting portion between the accommodating part and the extending part,
The interlocking member is a hollow pipe provided in the extending portion so as to be movable up and down, and a ring-shaped groove is formed on the outer side of the middle stage,
The water shutoff member is provided in the housing portion, and includes a water shutoff ring having an inner edge portion and an outer edge portion that mesh with the ring-shaped groove, and a close ring that fixes the outer edge portion between the inner ring and the outer ring in the housing portion. Have
An integral switch part is provided at the upper part of the pressing member, and a pressing part connected to the interlocking member is provided at the lower part,
The water cutoff switch, wherein the pressing portion presses the inner edge portion of the water cutoff ring into the ring-shaped groove to stably accommodate the water cutoff ring inside the accommodating portion, and
The invention according to claim 2 of the present application is characterized in that the outer peripheral edge of the tight ring is a polygonal shape, and the water cutoff switch according to claim 1,
The invention according to claim 3 of the present application provides the water cutoff switch according to claim 2, wherein an outer diameter of the tight ring is larger than an inner diameter of the inner ring.

  The present invention solves the above-mentioned problem, and when the inner edge portion of the water cutoff ring is pressed against the ring-shaped groove by the pressing portion, the water cutoff ring falls off the ring-shaped groove together with the movement of the interlocking member. Moreover, since the water shutoff effect of the water shutoff ring can be improved by the close ring provided between the outer ring and the inner ring, foreign matters such as moisture and dust enter the extension part through the storage part. Can be prevented.

  Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

  FIG. 1 is an exploded perspective view of a water cutoff switch according to the present invention, FIG. 2 is a cross-sectional view of the water cutoff switch according to the present invention, and FIG. 3 is a cross-sectional view showing a use state of the water cutoff switch according to the present invention.

  As shown in FIG. 1, the water cutoff switch according to the present invention includes a pipe-shaped hollow extending portion (50), a housing portion (30) having drain holes (300) on both sides, an interlocking member (32), and a water cutoff. A member, a pressing member (10), and a switch portion (12) provided integrally with the pressing member (10).

  An accommodating part (30) is provided on the upper part of the extending part (50) to accommodate the pressing member (10) and the switch part (12), and the connecting part between the accommodating part (30) and the extending part (50) is provided. An outer ring (302) and an inner ring (304) are formed.

  The interlocking member (32) is a hollow pipe, and a ring-shaped groove (322) is formed outside the middle stage. The water cutoff member includes a water cutoff ring (36) having an inner edge portion (362) and an outer edge portion (364), and an outer edge portion (364) formed of an inner ring (304) and an outer ring (302) in the housing portion (30). It has a tight ring (34) which is fixed in between and has a polygonal outer periphery. An integral switch part (12) is provided on the upper part of the pressing member (10), and a pressing part (14) connected to the interlocking member (32) is provided on the lower part. Further, since the outer diameter of the contact ring (34) is larger than the inner diameter of the inner ring (304), the contact ring (34) is firmly provided between the inner ring (304) and the outer ring (302).

  As shown in FIG. 2, when the water cutoff switch according to the present invention is assembled, the interlocking member (32) is provided in the extending portion (50) so as to be vertically movable, and the water cutoff ring (36) is provided in the accommodating portion (30). The inner edge (362) is engaged with the ring-shaped groove (322), and the tight ring (34) connects the outer edge (364) between the inner ring (304) and the outer ring (302) in the receiving part (30). While being fixed in between, the pressing portion (14) of the pressing member (10) presses the inner edge portion (362) of the water cutoff ring (36) against the ring-shaped groove (322), so that the pressing member (10) becomes the interlocking member. In combination with (32), the water shutoff ring (36) is stably housed in the housing part (30).

  As shown in FIG.2 and FIG.3, when using the water cutoff switch which concerns on this invention, if a user presses a switch part (12), an interlocking member (32) will be moved below and an inner edge part (362) will be. Since it is pressed against the ring-shaped groove (322) by the pressing portion (14), it does not fall off the ring-shaped groove (322) together with the movement of the interlocking member (32), and the inner ring and the inner ring (302) Since the water shutoff effect of the water shutoff ring (36) can be improved by the close ring (34) provided between the ring (304) and the foreign matter such as moisture and dust through the housing part (30), the extension part (50) can be prevented from entering. In addition, when foreign matter such as dust or moisture enters the storage portion (30), the foreign matter can be discharged outside through the drain holes (300) on both sides of the storage portion (30).

  Since the present invention has the above structure, the inner edge of the water cutoff ring is pressed against the ring-shaped groove by the pressing portion, so that the water cutoff ring can be prevented from dropping from the ring-shaped groove together with the movement of the interlocking member. In addition, the close ring provided between the outer ring and the inner ring can improve the water shutoff effect of the water shutoff ring, thus preventing foreign matters such as moisture and dust from entering the extended part through the storage part. it can.

It is a disassembled perspective view of the water cutoff switch which concerns on this invention. It is sectional drawing of the water cutoff switch which concerns on this invention. It is sectional drawing which shows the use condition of the water cutoff switch which concerns on this invention. It is sectional drawing which shows the conventional water cutoff switch.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Pressing member 12 Switch part 14 Pressing part 30 Accommodating part 300 Drain hole 302 Outer ring 304 Inner ring 32 Interlocking member 322 Ring-shaped groove 34 Close ring 36 Water cutoff ring 362 Inner edge part 364 Outer edge part 50 Extending part 52 Connection end 20 Pressing member 22 Switch portion 24 Pressing portion 241 Ring-shaped groove 40 Housing portion 42 Positioning member 44 Interlocking member 46 Water cutoff ring 462 Outer edge portion 464 Inner edge portion 60 Extending portion 62 Connection end

Claims (3)

A water cutoff switch comprising a pipe-shaped hollow extending portion, a housing portion having drain holes on both sides, an interlocking member, a water cutoff member, a pressing member, and a switch portion provided integrally with the pressing member,
An accommodating part is provided in the upper part of the extending part to accommodate the pressing member and the switch part, and an outer ring and an inner ring are formed at a connecting portion between the accommodating part and the extending part,
The interlocking member is a hollow pipe provided in the extending portion so as to be movable up and down, and a ring-shaped groove is formed on the outer side of the middle stage,
The water shutoff member is provided in the housing portion, and includes a water shutoff ring having an inner edge portion and an outer edge portion that mesh with the ring-shaped groove, and a close ring that fixes the outer edge portion between the inner ring and the outer ring in the housing portion. Have
An integral switch part is provided at the upper part of the pressing member, and a pressing part connected to the interlocking member is provided at the lower part,
The water cutoff switch characterized in that the water stop ring is stably housed in the housing portion by the pressing portion pressing the inner edge of the water shut ring against the ring-shaped groove. The water cutoff switch according to claim 1, wherein an outer peripheral edge of the close ring is a polygonal shape. The water cutoff switch according to claim 2, wherein an outer diameter of the close ring is larger than an inner diameter of the inner ring.

Images