JPS5833485Y2 - Protector of protruding parts - Google Patents

Description

[Detailed description of the invention] The present invention relates to a protection device that protects parts that protrude outward from a base body or an exterior body. For example, the present invention improves a protection device that protects a corrosion prevention electrode that protrudes outward from a boiler exterior body. This is what I did.

Conventionally, this type of protection device, for example, a protection device for a corrosion prevention electrode of a boiler, as shown in FIG. It was fixed to the exterior body by passing a screw or the like through a through hole 3 provided in the housing.

However, this structure has the disadvantage that when the boiler is installed outdoors, rainwater and dust can enter the interior through the gap between the cover and the exterior body, corroding the inside surface of the exterior body, and causing leakage due to wetness. Furthermore, if a current-carrying lead is connected to a component, this lead cannot be protected in any way, so the lead wire may come into contact with the periphery of the through hole provided in the exterior body, resulting in a short circuit.

Therefore, in order to prevent these problems, it is necessary to fix the cover by placing a waterproof backing on the end face of the cover, and to apply insulation coating to the lead wires, which increases the number of assembly steps. There was a problem that led to an increase in costs.

This invention solves these conventional drawbacks,
A cap part with a protruding part positioned inside and fitted into a through hole provided in the exterior body or base body, and a fixing hole formed to widen from the top of the cap part and partially provided in the exterior body or base body. A protective cover made of flexible synthetic resin that includes opposing screw seats and an umbrella with a cutout that allows the screw seats to face outward, protects the parts from rainwater and dust. This prevents this and also ensures insulation of the leads at the tip of the cap part.

Hereinafter, an example will be described for protecting a corrosion prevention electrode of a boiler.

In Fig. 1, 4 is a boiler tank, and 5 is an exterior body formed into a drum shape so as to cover the tank.

Reference numeral 6 denotes a corrosion-preventing electrode which is a component fixed to the tank and protruding from the exterior body 5, and a current-carrying lead 8 is connected to the tip 7.

Reference numeral 9 denotes a through hole provided in the exterior body, which is formed in a size sufficient to allow the electrode 6 to face outward.

10 is a protective cover that covers and protects the outside of this electrode 6.

This cover 10 has an electrode 6 located therein, a cap part 11 having a length that fits into the through hole 9 when fixed, and a cap part 11 that is formed to widen from the top part 12 of the cap part and has a part of the exterior body 5. A horizontally stepped screw seat 14 facing a plurality of fixing holes 13 provided on the periphery of the through hole 9, and a notch that allows the screw seat 14 to face outward to facilitate installation of a fixing device 15 such as a screw. The portion 16 and the bulk portion 17 are integrally formed of flexible synthetic resin.

The wall thickness of the umbrella part 1T is thinner than that of the cap part 11, and the thickness of the first
As shown in the figure, when this cover is fixed to the exterior body 5 with screws or the like, the tip portion 18 rests on the exterior body 5, deforms, and comes into close contact, making it waterproof and dustproof.

A semicircular notch 19 is provided in a part of the tip of the umbrella part 17, so that even if water should intrude into the umbrella part, the water can be discharged to the outside.

Further, 20 is a branch provided on the inner surface of the umbrella portion 17.
prevents it from being inadvertently deformed.

The shape of the protective cover 10 is as shown in FIGS. 2 and 3, and in order to protect the electrode 6, the cover may be fixed to the exterior body as shown in FIG.

In the structure shown in FIG. 1, the fixing device 15 such as a screw is attached to the screw seat 1
4 through the through hole 21 and screwed into the fixing hole 13 of the exterior body 5, the screw seat 14 is slightly deformed and the exterior body 5 is screwed into the fixing hole 13 of the exterior body 5.
At the same time, the tip 18 of the umbrella part 17 also comes into close contact with the exterior body 5.

Therefore, in this state, there is space between the bulk part 17 and the exterior body 5.
1 does not occur, and even if installed outdoors, rainwater and dust will not enter.

Furthermore, even if rainwater should enter, it will flow down the inner surface of the umbrella part 17 and be discharged to the outside through the notch 19.

Of course, the cap part 11 is longer than the umbrella part 17, and its tip enters into the through hole 9 of the exterior body 5 to protect the electrode 6, so that the electrode does not get wet.

In addition, the tip of the cap portion 11 enters inside the through hole 9 to protect the current-carrying lead 8 and prevent the lead 8 from coming into contact with the periphery of the through hole 9 and causing a short circuit.

Furthermore, the top surface of the screw 15, which is a fixing device, is exposed above the notch 16, but it is not visible from the side because it is protected by the side wall of the notch 16, compared to a screw whose head is exposed from any direction. The appearance can be improved.

As described above, the present invention has a simple structure, and has the advantage of protecting protruding parts and preventing infiltration of rainwater and dust, as well as protecting the leads and improving the appearance.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing a protective device for protruding parts in an embodiment of the present invention, Fig. 2 is a sectional view of its protective cover, Fig. 3 is a perspective view of the same cover, and Fig. 4 is a conventional cover. FIG. 5... Exterior body, 6... Protruding parts, 9... Transparent J
L10...Protective cover, 11...Cap part, 1'
3... Fixing hole, 14... Screw seat, 15... Fixing tool such as screw, 16... Notch part, 17... Wasp part,
18...Tip of the umbrella.

Claims (2)

[Scope of utility model registration request] (1) A base body or an exterior body in which a component is loosely fitted into a through hole and protrudes outward, and has a plurality of fixing holes at the peripheral edge of the through hole; a cap portion that fits into the hole; a bulk portion that is formed to widen toward the end from the top of the cap portion and has a screw seat that partially faces the fixing hole; and a notch portion that allows the screw seat to face outward; The protective cover is integrally made of flexible synthetic resin, and the through holes provided in the screw seats are aligned with the fixing holes of the base or exterior body, and the protective cover and the base are connected with fixing devices such as screws. A protective device for protruding parts made by fixing the exterior body. (2) The bulk part is thinner and more flexible than the cap part,
The device for protecting protruding parts according to claim 1, wherein the length at the tip end 1 is shorter than the tip end of the cap part.