JPS6335232U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view showing an embodiment of the magnetic proximity switch mounting structure of the water flow detection device according to the present invention, Fig. 2 is an exploded perspective view of Fig. 1, Figs.
Figures a, b and Figures 5c, d, e, and f are perspective views showing other embodiments of the magnetic proximity switch which is the essential part of the present invention. 6A and 6B are partially cut-away side views showing aspects of the magnetic proximity switch mounting structure of a conventional water flow detection device, and FIG. 7 is a perspective view of the magnetic proximity switch used in FIG. 6. M...Water flow detection device, 1...Casing, 3...Flapper chamber, 5...Opening hole, 6...Lid, 8...Support, 9...Magnetic body, 10...Flapper, 12...Flapper mechanism section, 1
3...Mounting hole, 14...Magnetic proximity switch, 15...Resin case, 17...Vertical wall part, 18...Gap, 19...Elastic leg part, 20...Claw part.

Claims (1)

[Scope of claim for utility model registration] 1. Flap chamber 3 provided in the casing 1 of the water flow detection device
The opened hole 5 is watertightly closed with a lid 6 rotatably equipped with a flapper mechanism 12 to which a magnetic body 9 is attached, and the magnetic body 9 of the flapper mechanism 12 is sealed by a water flow onto the upper surface of the lid 6. A proximity switch 14 is provided that opens and closes the contact by movement of the proximity switch 14, and on the left and right sides of the proximity switch 14, there are a pair of upwardly extending resin cases integrally formed with a resin case 15 surrounding the reed switch 16 of the proximity switch 14. The vertical wall portions 17 are continuous with each vertical wall portion 17, and elastic leg portions 19 are formed which extend downward while leaving gaps 18 in the lateral direction with respect to the corresponding vertical wall portions 17. A claw portion 20 is provided at the lower end, and a pair of mounting holes 13 are formed in the lid body 6 to allow insertion of the claw portion 20, and the elastic leg portions 19 of the proximity switch 14 are inserted into the mounting holes 13. When the claw portion 20 is inserted and locked by bending, the lid body 6 and the proximity switch 14 face each other, and by bending the elastic leg portion 19 and removing the claw portion 20 from the mounting hole 13, the lid body 6 and the proximity switch 14 are brought into proximity. A magnetic proximity switch mounting structure for a water flow detection device, characterized in that the switch 14 is disposed opposite to the switch 14. 2. A magnetic proximity switch mounting structure for a water flow detection device as set forth in claim 1, which is a utility model registration, and comprises guide pieces 21 projecting downward on both left and right sides of the resin case 15 of the proximity switch 14. 3. An elastic leg portion 19 with a claw portion 20 on either the left or right side of the resin case 15 of the proximity switch 14.
A magnetic proximity switch mounting structure for a water flow detection device according to claim 1, wherein a hook-shaped hooking piece 22 is provided on the other side. 4. The magnetism of the water flow detection device according to any one of claims 1 to 3, which is provided with a locking part 23 for winding the lead wire on the upper side of the resin case 15 of the proximity switch 14. Proximity switch mounting structure.