JP2021017973A - Receptacle leak-prevention receptacle metal fittings (receptacle plug) - Google Patents

Abstract

To solve a problem that there has not been provided a desired structure related to leak-prevention receptacle metal fittings attached to at least a water truck in the town, connected with an emergency water pipe having one or plurality of pieces of faucets, and having no anxiety of leakage.SOLUTION: In this receptacle leak-prevention receptacle metal fittings, the receptacle metal fittings attached to a fireplug and an outlet of any of the other faucets are composed of metal fittings having a first screw, a lock ring incorporated with a second screw which is screwed to the first screw, and a holder having the lock ring. The receptacle metal fittings are also composed of: a hose and a fireplug which are held to an inner chamber of the receptacle metal fittings while being fit, attached, or inserted therein; a pressing ring and a receiving ring attached to any of receptacles of the other faucet; the connecting hardware of any of the other hardware; and cutoff means arranged between the connecting hardware and the holder.SELECTED DRAWING: Figure 4-1

Description

The present invention relates to a connection between a fire hydrant, a water truck, or another water supply pipe and a receiving port of any of a hose, another water faucet, etc. to which a connecting hardware such as a push ring, a receiving ring, or other metal fitting is attached. , The socket metal fittings for preventing water leakage (receptacle plug, hereinafter omitted).

Conventionally, the Machino-style coupling has been useful for the socket (metal fitting) of the emergency water faucet for emergency use. The following are examples of literature on the use and improvement of this Machino-style coupling.

First, in Japanese Patent Application Laid-Open No. 2015-178750 (Reference 1), the present invention enables water supply from a water truck to a general household or the like when a water supply facility is damaged and normal water supply cannot be performed in the event of a disaster or the like. The present invention relates to a three-way valve for water supply and a water pipe structure and a meter unit provided with the three-way valve.

Further, Japanese Utility Model Registration No. 3114874 (Reference 2) discloses a structure in which a branch pipe is connected to a water supply port of an underground fire hydrant or a ground fire hydrant by using a connecting metal fitting. That is, the present invention is a rigid main pipe, a connection fitting attached to the lower end of the main pipe for connecting and fixing to the water supply port of the fire hydrant, and a rigid branch pipe connected to the upper end of the main pipe via a union. , Concerning a structure consisting of a plurality of single faucets attached to a branch pipe.

JP 2015-178750 Utility Model Registration No. 3114874

However, in Ichii, including the conventional documents 1 and 2, in Ichii, at least, an emergency with a socket fitting attached to a water truck and one or more faucets or hoses provided on the socket fitting. It is considered that the desired structure is not provided for the water leakage prevention socket fitting that connects the water supply pipe for water leakage and does not have to worry about water leakage.

The reason is that the Machino-type socket fitting has a structure in which the water at the insertion connection is stopped by water pressure. For example, the water pressure from a water truck does not provide sufficient water pressure to stop water, resulting in water leakage. There is a risk that valuable water needed in an emergency may leak.

Therefore, the present invention is: 1) A socket fitting that uses a water stop means using a handle tightening that fits into the outlet of a water truck and does not leak even when used, that is, for preventing water leakage. The provision of socket fittings and 2) provision of socket metal fittings for preventing water leakage that can be used immediately by attaching to water trucks, fire hydrants, etc.

In view of the above, the following preferred examples of claims 1 to 5 are provided.

In claim 1,
With a bracket with a claw seat and a claw,
The first screw provided on this bracket and
A lock ring with a second screw screwed into this first screw,
The holder provided on this lock ring and
In the socket fitting attached to the outlet of any of the fire hydrants and other water taps
Attached to any of the fire hydrant, the other water faucet, or the push ring, receiving ring, or other metal fitting provided at the hose insertion port, which is fitted, attached, or plugged into the inner chamber of the receiving metal fitting. A socket metal fitting for preventing water leakage from the socket, which is composed of a connecting hardware and a water blocking means provided between the opening surface of the connecting hardware and the holder.

In claim 2,
The water-stopping means is an O-ring, which is a metal fitting for preventing water leakage.

In claim 3,
The O-ring was used as a socket metal fitting for preventing water leakage from the socket to be inserted and supported in the annular groove at the end of the holder.

In claim 4,
The receiving metal fitting and the lock ring are provided with a first handle or a second handle, respectively, as a receiving metal fitting for preventing water leakage.

In claim 5,
By rotating the first handle and the second handle in different directions, a socket metal fitting for preventing water leakage is used as a socket for pressing the water blocking means.

Enlarged plan view of a part of the socket metal fittings for preventing water leakage Enlarged sectional view of the main part of FIG. Enlarged reference plan view showing a part of the state where the bracket and the holder are tightened from FIG. Reference perspective view showing an example of the state of being attached to a fire hydrant Reference perspective view showing an example of the state of being attached to a water truck Top view showing the relationship between the socket metal fittings for preventing water leakage, the water supply pipe, and the faucet. Side view of FIG. 3-1 An enlarged bird's-eye view of the insertion status, which is an operation method for the socket metal fittings to prevent water leakage. A bird's-eye view of the tightened state after insertion in Fig. 4-1

Hereinafter, an embodiment of the present invention will be described. This one embodiment is a preferable example, and is not limited to the description and the attached drawings described later. Therefore, a structure in which a part of the configuration is changed within the scope of the invention, a structure in which the same features and effects can be achieved, and the like are within the scope of the present invention.

In FIGS. 1-1 and 1-2, reference numeral 1 denotes a fire hydrant F or a receiving metal fitting fitted to a water supply port B of a water truck C or the like, and the opening wall surface of the inner chamber 100 (receptacle) of the receiving metal fitting 1. The 22 has a plurality of claws 2 protruding into the inner chamber 100 and a plurality of claw seats 3 adjacent to the claws 2.

The receiving metal fitting 1 is composed of an annular main body 1a and a thin-walled tubular portion 1b extending from the main body 1a, and an inward ridge 101 is provided at the tip of the tubular portion 1b. A first handle 6 is provided on the outer peripheral wall surface of the main body 1a. Further, a first screw 7 is provided on the outer peripheral wall surface of the tubular portion 1b.

The receiving metal fitting 1 is provided with the first handle 6. Further, it is also within the scope of the present invention to provide the first handle 6 on a cover (not shown) fitted (for example, screwed) to the receiving metal fitting 1. In this embodiment, it is possible to equip the first handle (6) by diverting the existing receiving metal fitting (not shown) without manufacturing a new receiving metal fitting 1 with a handle, and the material cost is reduced. It is advantageous in terms of saving and effective use of materials.

Further, in FIGS. 1-1 and 1-2, reference numeral 10 denotes an annular tubular holder inserted into the opening of the tubular portion 1b of the inner chamber 100 of the receiving metal fitting 1, and the lower end of the holder 10. A ridge 5 is formed on the outer peripheral wall surface to which the ridge 101 provided on the receiving metal fitting 1 is locked. The ridge 5 is formed so as to surround a groove 12 into which an O-ring 11 (water stopping means) for stopping water is inserted. The O-ring 11 is provided in the groove 12 and is inserted by an appropriate pressing force, but it is naturally possible to fix the O-ring 11 by another suitable method such as an adhesive. Then, in a state where the connecting metal fitting 13 of any of the push ring, the receiving ring, and other metal fittings provided (provided) at the insertion port of the hose A or the like is inserted into the inner chamber 100 of the receiving metal fitting 1, the connecting metal fitting 13 is inserted. The opening ring surface 1300 (insertion metal fitting) has a structure in which the O-ring 11 is in contact with and pressure-contacted (described later). That is, the opening ring surface 1300 and the O-ring 11 function as water stopping means. Further, a third screw 1000 is engraved on one of the outer peripheral wall surfaces of the holder 10. The ridge 5 of the holder 10 is for securing an area for forming the groove 12, retaining the ridge 101 of the receiving metal fitting 1 by the ridge 5 of the holder 10, and securing the connection between the receiving metal fitting 1 and the holder 10. .. The О ring 11 can be made of rubber, resin, or metal, and is ideally made of rubber, for example. Further, as an alternative to the О ring 11, for example, a u-ring, a v-ring, a delta ring, a substantially U-shaped packing, a packing of other shapes, and a seal (water-stopping means having a sealing function) can be used.

A lock ring 14 of an annular cylinder is assembled and integrated on the other side (a portion following one) of the outer peripheral wall surface of the holder 10, and a second screw 1400 is attached to the inner peripheral wall surface of the lock ring 14. Is formed. The second screw 1400 meshes with the first screw 7. A second handle 15 is provided on the outer peripheral wall surface of the lock ring 14. In the figure, 16 is a key, and the holder 10 and the lock ring 14 are fixed by using the key 16.

Next, the operation of the present invention will be described. In FIGS. 1-1 and 1-2, FIGS. 2-1 and 2-2, and in FIGS. 4-1 and 4-2, the receiving metal fitting 1 is attached to the fire hydrant F. It is attached to the water supply port B (corresponding to the connecting hardware 13). The water supply port B is inserted into the inner chamber 100, and the flange of the water supply port B pushes in the claw 2, and at the end of pushing, the claw 2 returns and locks the flange. In this action, as shown in the figure, the socket metal fitting for preventing water leakage from the socket of the present invention is attached to the water supply cap B such as the fire hydrant F. Further, in order to attach the main 2000 of the emergency water supply pipe 20 to the holder 10, the third screw 1000 of the holder 10 is screwed into the screw portion 2002 of the connection port 2001 of the main pipe 2000. By this operation, the fire hydrant F (see FIG. 2-1), the water truck C (see FIG. 2-2), and the main 2000 are connected via the socket metal fitting for preventing water leakage from the socket of the present invention.

By attaching the fire hydrant F of the receiving metal fitting 2 to the water supply port B (corresponding to the connecting hardware 13) and attaching the holder 10 to the emergency water tap 20, the fire hydrant F (see FIG. 2-1) and The water tanker C (see FIG. 2-2) and the water hydrant 20 are connected to each other via a socket fitting for preventing water leakage from the socket of the present invention.

The behavior (work) after this installation includes an example of FIGS. 4-1 and 4-2. For example, as shown in FIG. 4-1 with respect to the fire hydrant F, the first handle 6 is turned to the right (clockwise), and the second handle 15 is turned to the left (counterclockwise) (rotated in a different direction). This is the initial position of engagement between the first screw 7 and the second screw 1400 (see FIG. 1-2). In other words, in the relaxed state of the first handle 6 and the second handle 15, the receiving metal fitting 1 and the holder 10 are spaced apart from each other, for example, the receiving metal fitting 1 and the holder 10 are in opposite directions (FIG. 4-1 Moves in the XY directions "different directions"). That is, the receiving metal fitting 1 and the holder 10 are in a predetermined interval. Then, when the receiving metal fitting 1 is inserted into the insertion metal fitting (not shown) of the fire hydrant F, the insertion metal fitting is fitted and supported by the claw 2 and the claw seat 3 and fixed. On the other hand, the third screw 1000 of the holder 10 begins to be screwed into the screw portion 2000 of the emergency water supply pipe 20 via the lock ring 14.

Therefore, for example, as shown in FIG. 4-2, the first handle 6 is turned to the left side (counterclockwise), the second handle 15 is turned to the right side (clockwise) (rotated in a different direction), and the first screw is used. This is the position where the meshing of 7 and the second screw 1400 is advanced (see FIG. 1-3). In other words, in a tense state of the first handle 6 and the second handle 15, the middle of the receiving metal fitting 1 and the holder 10 are in a contracted interval (the ridge 101 of the receiving metal fitting 1 and the ridge 5 of the holder 10). In a state where, for example, the receiving metal fitting 1 and the holder 10 advance in opposite directions (in the Y / X directions of arrows in FIG. 4-2), for example, the О ring 10 is the connecting metal fitting 13. It is pressure-welded to the opening ring surface 1300. This pressure-contact is a water-stopping means. Further, the claws 2 can be firmly locked to the insertion metal fitting. In this water-stopping state, for example, this figure is shown in the figure. As shown in 2-2, the risk of water leakage, which has been a problem in the past, is avoided in the state of being attached to the water supply vehicle C. For example, as an example, FIGS. 1-3, 4-1 and 4 -2 is a feature.

1 Receiving metal fittings 1a Main body 1b Cylinder 100 Inner chamber 101 Protruding 2nd 3 Claw seat 5 Protruding 6 1st handle 7 1st screw 10 Holder 1000 3rd screw 11 O-ring 12 Groove 13 Connecting hardware 1300 Opening ring surface 14 Lock Ring 1400 2nd screw 15 2nd handle 16 key 20 Water supply pipe 2000 Main pipe 2001 Connection port 2002 Screw part 22 Opening wall surface F Fire hydrant A Hose B Water supply port C Water supply wheel

Claims (5)

With a bracket with a claw seat and a claw,
The first screw provided on this bracket and
A lock ring with a second screw screwed into this first screw,
The holder provided on this lock ring and
In the socket fitting attached to the outlet of any of the fire hydrants and other water taps
Either the fire hydrant that is fitted, attached, or plugged into the inner chamber of the bracket, the other hydrant, or the push ring, receiver ring, or other bracket provided at the hose outlet. A socket metal fitting for preventing water leakage from the socket, which is composed of an attached connecting hardware and a water blocking means provided between the connecting hardware and the holder. The socket metal fitting for preventing water leakage from the socket according to claim 1, wherein the water stopping means is an O-ring. The socket metal fitting for preventing water leakage from the socket according to claim 2, wherein the O-ring is inserted into an annular groove at the end of the holder to support the O-ring. The socket metal fitting for preventing water leakage from the socket according to any one of claims 1 to 3, wherein the receiving metal fitting and the lock ring are each provided with a first handle or a second handle. The socket metal fitting for preventing water leakage according to claim 4, wherein the first handle and the second handle are rotated in different directions to press-contact the water blocking means.