JPH0346055Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a connecting nut for a cylindrical body in a water supply appliance such as a faucet.

[Conventional technology]

For example, water faucets and other water supply appliances whose cylindrical bodies are connected using nuts are shown in Fig. 4.
The one disclosed in Japanese Patent No. 59-7424 is known.

FIG. 4 shows an existing faucet body with a branch faucet connected to form another flow path. In the figure, 1 is a faucet main body, a water supply connecting part 2 and a water spouting part 3, a partition wall 4 that partitions the water supply connecting part 2 and the water spouting part 3, a water passage hole 5 provided in this partition wall 4, and this water passage hole. A mounting tube 6 is provided on the downstream side of the water spout 5 and protrudes in communication with the water spouting portion 3 .

37 is a branch plug main body, and a connecting tube 3 with one end closed.
8. Support tube 3 provided in communication with this connection tube 38
9. A partition wall 40 that divides the inside of the connecting tube 38 into a flow path A independent from the support tube 39 and a flow path B communicating with the support tube 39, and this partition wall 40 and the connecting tube 3
The connecting cylinder 41 is formed by extending each of the 8 passages A. And the support tube 39
A through hole 44 that is opened and closed by a valve body 43 operated by a spindle 42 provided therein is provided in the partition wall 40, and an appropriate number of branch ports 45 communicating with the flow path A are provided in the connecting tube 38. Reference numeral 46 denotes a locking ring that locks into a groove provided on the outer surface of the end of the connecting tube 38, and a portion thereof is cut out in a C-shape. 47 is a connecting nut attached to the connecting tube 38, and a locking step 48 provided on the inner periphery of one end thereof.
is locked by a locking ring 46 and is rotatably attached to the connecting tube 38 in an inseparable manner. 49 is pack king.

The connection of the branch faucet body 37 to the faucet body 1 is as follows:
Insert the connecting tube 41 into the mounting tube 6 so that the end of the communicating tube 41 communicates with the water passage hole 5 to contact the partition wall 4 in a watertight manner, and connect the connecting tube 38 to the mounting tube 6 with the connecting nut 47. It connects. The water supplied to the water supply connection part 2 is transferred from the flow path A to the branch port 45.
Alternatively, the on-off valve 43 can be opened to allow water to flow from the through hole 44 to the water spouting section 3 via the flow path B.

A connecting nut shown in FIG. 5 is also known. In FIG. 5, 51 is a cylindrical body, and 52 is a cylindrical body 5.
1, between the flange 53 provided on the outer periphery of one end and the end of the cylindrical body 51,
A locking protrusion 55 provided on the inner periphery of one end of the connecting nut 54
A connecting nut 54 is attached to the cylindrical body 51 in a sandwiched manner. 56 is a cylindrical body connected to the cylindrical body 51 by a connecting nut 54.

[Problem that the invention attempts to solve]

Among the above conventional connecting nuts, the one shown in FIG. 4 is one in which a connecting tube 38 is inserted into a connecting nut 47, and then a locking ring 46 is attached to the outer periphery of the connecting tube 38. 46, it is necessary to move the connecting nut 47 toward the support tube 39 to expose the concave groove portion of the connecting tube 38 to which the locking ring 46 is attached. Therefore, the connecting tube 38 must have a length that allows the connecting nut 47 to be moved, and if the connecting tube 38 is short,
There is a problem that the connecting nut 47 cannot be installed.

Furthermore, the connection nut shown in FIG.
may be short, but requires a mounting nut 52,
Moreover, since the inner diameter of the mounting nut 52 is smaller than that of the cylindrical body 51, there are problems such as increased resistance to water flow.

[Means for solving problems]

The connecting nut of the present invention has a cylindrical body of a water supply appliance inserted into the connecting nut, and a plurality of locking recesses provided on the outer peripheral surface of the cylindrical body and a ring-shaped groove formed on the inner peripheral surface of the connecting nut. A ball is then inserted, and the ball is inserted into an insertion hole formed in a wall portion of the connection nut opposite to the recessed groove in a manner that communicates with the recessed groove and extends inwardly and outwardly. It is characterized in that a closing member is attached which makes it impossible.

[Effect]

The present invention involves inserting a cylindrical body into a connecting nut, inserting a ball into an insertion hole of the connecting nut, and then rotating the connecting nut or the cylindrical body to sequentially insert the balls into each locking recess of the cylindrical body. It is something. After the ball has been inserted, a closing member is attached to the insertion hole,
The insertion hole is closed to make it impossible for the ball to escape. Therefore, the connecting nut cannot be separated from the cylinder due to the ball, and the groove in the ring allows the connecting nut and the cylinder to rotate relative to each other.

〔Example〕

Embodiments of the connecting nut of the present invention will be described based on FIGS. 1 to 3.

In Figs. 1 to 3, 1 is a faucet main body, which includes a water supply connecting member 2 and a water spouting part 3, a partition wall 4 that partitions the water supply connection part 2 and the water spouting part 3, a water passage hole 5 provided in this partition wall 4, and a water passage hole 5 provided in this partition wall 4. It is comprised of a mounting tube 6 which is protruded and communicated with the water discharge part 3 on the downstream side of the water hole 5. 5a is a valve seat provided on the downstream side of the periphery of the water passage hole 5.

Reference numeral 7 denotes a branch stopper main body, which is composed of a connecting cylinder 8 with both ends open, and a supporting cylinder 9 that projects from the side surface of the connecting cylinder 8 and communicates with the inside of the connecting cylinder 8.

Reference numeral 10 denotes a connecting tube which is slidably inserted into the connecting tube 8 in its axial direction, has a smaller diameter than the connecting tube 8, and has one end closed, and its open end 10a side is connected to the connecting tube 8.
The opening end 10a is configured to have a length protruding from the opening end 10a.
The cylindrical packing 11 attached to the valve seat 5a
It is configured so that the water supplied to the water supply connection section 2 is guided to the connection tube 10 by being in contact with the water supply connection section 2 . Reference numeral 11a denotes a cover for the gasket 11, which is made of metal or hard synthetic resin and is formed into a pipe shape, which prevents unnecessary deformation of the gasket 11 and ensures watertightness.

12 is a communication hole provided on the closed end 10b side of the connecting cylinder 10, and 13 is a set screw that supports the closed end 10b of the connecting cylinder 10, and is engaged with a screw on the inner periphery of the end of the connecting cylinder 8.

14a and 14b are the communication holes 12 of the connecting cylinder 10.
O-rings 15a, 15 are installed on the surfaces of these partition walls 14a, 14b facing the connecting cylinder 10, so as to separate the parts provided with the connecting cylinder 8.
b is provided to prevent water flowing out from the communication hole 12 of the connecting cylinder 10 from leaking out of the branching chamber 8a.

Reference numeral 16 denotes a through hole provided on the side of the support tube 9 in the branch chamber 8a, and a valve seat 16a is provided on the downstream side of the periphery thereof. Reference numeral 17 denotes a valve body that opens and closes the valve seat 16a, and 18 denotes a spindle that is screwed into the support tube 9 so that it can move forward and backward.The valve stem 17a of the valve body 17 is inserted into a support hole 18a at one end of the spindle. Reference numeral 19 denotes a pressing nut that is engaged with a thread on the outer periphery of the support cylinder 9, which presses a gasket (not shown) against the end of the support cylinder 9 to close the support cylinder 9. 20 is spindle 1
This is the handle attached to 8.

A connecting nut 21 is rotatably attached to the end of the connecting tube 8, and is engaged with a thread on the outer periphery of the attaching tube 6 to connect the connecting tube 8 to the attaching tube 6. 2
2 is Patsukin.

As shown in FIG. 3, the connecting nut 21 has a plurality of recesses 23 provided on the outer peripheral surface of the connecting tube 8.
A metal ball 25 is fitted across the ring-shaped concave groove 24 provided on the inner circumferential surface of the connecting nut 21, and is rotatably attached to the connecting tube 8 in an inseparable manner. Reference numeral 26 designates an insertion hole provided in the connecting nut 21 so as to communicate with the concave groove 24, from which the ball 2 is inserted.
5 into the recessed member 23 and the recessed groove 24. Reference numeral 27 denotes a closing ball as a closing member which is pressed and fixed into the insertion hole 26 in order to prevent the ball 25 from deviating from the insertion hole 26. This ball is made to have approximately the same diameter as the insertion hole 26 to prevent it from deviating from the insertion hole 26. Therefore, since the connecting nut 21 can freely rotate due to the groove 24,
Rotate the connecting nut 21 to connect the connecting tube 8 to the mounting tube 6.

Instead of the closing ball 25, it is also possible to attach a set screw to the insertion hole 26. Also, ball 2
5 may also be made of synthetic resin.

The balls 25 are fitted into each of the recesses 23 in sequence by inserting the closing ball 25 into the insertion hole 26 and rotating the connecting tube 8 or the connecting nut 21.

In FIG. 2, 28a and 28b are the branch chamber 8a.
This is a branch connection portion that protrudes from the connection tube 8 and communicates with the connection tube 8.

In the above configuration, the connection of the branch faucet body 7 to the existing faucet body 1 excludes the valve body of the faucet body 1, the spindle for operating it, its handle (not shown), and the like. Then, the set screw 13 is rotated in a direction to loosen it, the connecting tube 10 is made movable toward the set screw 13, the connecting tube 10 is inserted into the mounting tube 6, and the connecting tube 8 is inserted through the packing 22. and connect it to the mounting tube 6 with a connecting nut 21 in a watertight manner.

When the connection of the connecting tube 8 to the mounting tube 6 is completed, the set screw 13 is tightened to allow the open end 10a of the connecting tube 10 to communicate with the water passage hole 5 via the packing 11 and to contact the partition wall 4 in a watertight manner. In addition, appropriate piping is provided to the branch connections 28a and 28b.

Therefore, the water supplied to the water supply connection 2 is
Water is guided from the water hole 5 to the connecting tube 10 and reaches the branch chamber 8a, so when the water hole 16 is opened by moving the valve body 17, water is discharged from the water spouting portion 3 through the support portion 9 and the connecting tube 8. . On the other hand, the water in the branch chamber 8a is
It is also branched into 8a and 28b.

[Effect of idea]

As described above, in the present invention, a ball is inserted into the wall portion of the connecting nut facing the concave groove through an insertion hole formed through the concave groove in a manner communicating with the concave groove, and the connecting nut is inserted with the ball. It is rotatably attached to the cylindrical body in a non-separable manner. Therefore, since it is unnecessary to move the connecting nut in the axial direction when attaching it to the cylinder, it is possible to shorten the length of the cylinder required to attach the connecting nut. possible, and can contribute to downsizing of water supply equipment. In addition, since the connecting nut rotates freely due to the groove, it is easy to connect the connecting nut to the cylinder, and since the connecting nut is attached to the outer circumferential surface of the cylinder, the inner diameter of the part of the cylinder is small. This allows for smooth water flow without any problems.

[Brief explanation of the drawing]

Figures 1 to 3 show examples of the present invention; Figure 1 is a sectional front view, Figure 2 is a plan view, Figure 3 is a sectional view of the connecting nut, and Figures 4 and 5 are different from each other. FIG. 3 is a sectional view of a conventional example. 6...Mounting tube, 8...
Connection tube, 21... Connection nut, 23... Recess, 2
4... Concave groove, 25... Ball, 26... Insertion hole,
27...Closing member.

Claims (1)

[Scope of utility model registration request] A cylindrical body of a water supply appliance is inserted into a connecting nut, and a ball is inserted across a plurality of locking recesses provided on the outer circumferential surface of the cylindrical body and a ring-shaped groove formed on the inner circumferential surface of the connecting nut. , and a closing member that makes it impossible for the ball to escape is attached to an insertion hole for the ball that is formed in a wall portion of the connecting nut facing the concave groove and extends inwardly and outwardly in communication with the concave groove. Connecting nut for the cylindrical body of water appliances.