JPH0720212Y2 - Antifreeze faucet column with built-in intake valve - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) This invention is one in which an intake valve is housed inside a water column such as an antifreeze water tap or drain tap, a so-called antifreeze water column.

(Prior Art) Regarding the drainage of water by an intake valve in a conventional antifreeze water tap, etc., the applicant of the present invention applied for utility model registration No. 1,585,52.
No. 9, No. 1,585,530, No. 1,585,531, etc. have the prior art, but all of them have the intake holes directly exposed to the outside, and the intake holes are frozen during a snowstorm or snowfall, causing clogging. It may occur.

(Problems to be Solved by the Invention) In view of the above, the present invention has an object to provide an antifreezing water faucet column in which an intake hole does not freeze.

(Means for Solving the Problem) The present invention is designed such that an upper portion of a rising pipe integrally forming a water supply passage such as an antifreeze water tap is externally fitted to a spindle and locked to the rising pipe, and a water supply port is arranged laterally. In the antifreeze faucet column, which is installed in the outer cylinder covered with the cap, the boss is inserted from the upper part of the bump protruding laterally of the joint. A hole is dug, a boss is fitted and screwed into the boss fitting insertion hole, a through hole communicating with the water supply passage is formed, and the intake valve inserting hole and the inserting hole are communicated with the boss. An intake hole opening in the outer cylinder is provided, and an intake valve having a head having a larger pressure receiving area than the shaft portion inserted into the intake hole is inserted into the intake valve insertion hole.

(Operation) According to the above configuration, since the intake hole is opened in the outer cylinder, it is not directly affected by the outside air.

(Embodiment) The present invention will be described with reference to an embodiment. As shown in FIG. 1, a spindle (3) is fitted onto a spindle (3) at an upper portion of a rising pipe (2) which integrally forms a water supply passage (1) with a lower antifreeze water faucet or the like. Then, the joint body 5 which is locked to the rising pipe 2 and which is provided with the water supply port 4 on the side and communicates the water supply passage 1 with the water supply port 4 is housed in the outer cylinder 14 covered with the cap 13. In the antifreezing water plug column, a boss fitting insertion hole 7 is dug from the upper part of the bump 6 projecting to the side of the joint body 5, and a through hole 8 is laterally provided in the boss fitting insertion hole 7 to form the water supply passage 1. An intake valve insertion hole 10 and an intake hole 11 that communicates with the insertion hole 10 and opens into the outer cylinder 14 are vertically provided in the boss 9 that communicates with and is screwed into the boss insertion hole 7. In the valve insertion hole 10, the pressure receiving area of the head is made larger than that of the shaft portion inserted in the intake hole 11, and the intake valve 12 with the head positioned appropriately is inserted.
The same head can be watertightly closed. An antifreezing water faucet column a (hereinafter simply referred to as an antifreezing water faucet column a) having a built-in intake valve is formed in this manner.

Therefore, since the intake hole 11 is not directly exposed to the outside air in the antifreezing water faucet a, there is no clogging due to freezing, and water can be reliably drained from the rising pipe, and a freeze damage accident can be eliminated. . Further, as shown in FIG. 2, an intake valve 11 arranged in the joint body 5 in which the intake hole 11 is closed by water pressure and its own weight may be shown as another embodiment of the antifreezing water faucet column a. it can. In this case, a means for pressing a reaction force commensurate with the weight of the intake valve 11 with a spring may be added. Further, when the heat insulating material is lined on the inner circumference of the outer cylinder 14, the intake hole 11 is opened in the space between the heat insulating material and the bump 6 projecting to the side of the joint body 5.

(Effect of the Invention) According to this invention, the intake hole is not directly exposed to the outside air, and clogging due to freezing does not occur, so that there is an effect that water drainage can be surely performed during freezing.

[Brief description of drawings]

FIG. 1 shows an antifreezing water faucet column a with a built-in intake valve according to the present invention.
FIG. 2 is a longitudinal sectional view of an essential part showing another embodiment of the antifreezing water faucet column a. In the figure, 1 is a water supply passage, 2 is a rising pipe, 3 is a spindle,
4 is a water supply port, 5 is a joint body, 6 is a bump, 7 is a boss fitting insertion hole,
8 is a through hole, 9 is a boss, 10 is an intake valve insertion hole, 11 is an intake hole,
12 is an intake valve, 13 is a cap, 14 is an outer cylinder. a is an antifreeze faucet with a built-in intake valve.

Claims (1)

[Scope of utility model registration request] 1. An upper part of a rising pipe which is integrated with an antifreeze water faucet and serves as a water supply passage, is externally fitted to a spindle and is locked to the rising pipe, and a water supply port is provided at a side of the water supply passage. In an antifreeze faucet column in which a joint body communicating with the water supply port is housed in an outer cylinder covered with a cap, a boss fitting hole is dug from the upper part of the bump protruding laterally of the joint body, A boss is fitted and screwed into the boss fitting hole, and a through hole communicating with the water supply passage is formed, and an intake valve communicating with the intake valve inserting hole and the inserting hole is opened in the boss. An antifreeze faucet column with a built-in intake valve having a hole, and the intake valve having a larger head pressure receiving area than the shaft part inserted into the intake hole.